Version 1.2.6.

- Grouped Photos. Group media into an album when sharing multiple photos and videos.
Choose the exact order of media you send.

.gitmodules

@@ -10,3 +10,6 @@
 [submodule "Telegram/ThirdParty/Catch"]
 	path = Telegram/ThirdParty/Catch
 	url = https://github.com/philsquared/Catch
+[submodule "Telegram/ThirdParty/crl"]
+	path = Telegram/ThirdParty/crl
+	url = https://github.com/telegramdesktop/crl.git

Telegram/Resources/basic.style

@@ -196,7 +196,6 @@ outSemiboldPalette: TextPalette(outTextPalette) {
 	selectLinkFg: msgOutServiceFgSelected;
 }
 
-mediaPadding: margins(0px, 0px, 0px, 0px);
 mediaCaptionSkip: 5px;
 mediaInBubbleSkip: 5px;
 mediaThumbSize: 48px;

Telegram/Resources/langs/lang.strings

@@ -27,7 +27,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_menu_about" = "About";
 "lng_menu_update" = "Update";
 "lng_menu_back" = "Back";
-"lng_menu_night_mode" = "Night mode";
+"lng_menu_night_mode" = "Night Mode";
 
 "lng_disable_notifications_from_tray" = "Disable notifications";
 "lng_enable_notifications_from_tray" = "Enable notifications";
@@ -125,9 +125,9 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_flood_error" = "Too many tries. Please try again later.";
 "lng_gif_error" = "An error has occurred while reading GIF animation :(";
 "lng_edit_error" = "You cannot edit this message";
-"lng_join_channel_error" = "Sorry, you have joined too many channels and supergroups. Please leave some before joining.";
+"lng_join_channel_error" = "Sorry, you have joined too many channels and supergroups. Please leave some before joining this one.";
 "lng_error_phone_flood" = "Sorry, you have deleted and re-created your account too many times recently. Please wait for a few days before signing up again.";
-"lng_error_start_minimized_passcoded" = "You have set a local passcode, so the app can't be launched minimized. App will ask you to enter the passcode before it can start working.";
+"lng_error_start_minimized_passcoded" = "You have set a local passcode, so Telegram Desktop can't be launched minimised; it will ask you to enter your passcode before it can start working.";
 "lng_error_pinned_max#one" = "Sorry, you can pin no more than {count} chat to the top.";
 "lng_error_pinned_max#other" = "Sorry, you can pin no more than {count} chats to the top.";
 "lng_error_public_groups_denied" = "Unfortunately, you were banned from participating in public groups.\n{more_info}";
@@ -137,8 +137,9 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_error_cant_add_admin_unban" = "Sorry, you can't add this user as an admin because they are in the blacklist and you can't unban them.";
 "lng_error_cant_ban_admin" = "Sorry, you can't ban this user because they are an admin in this group and you are not allowed to demote them.";
 "lng_sure_add_admin_invite" = "This user is not a member of this group. Add them to the group and promote them to admin?";
-"lng_sure_add_admin_unban" = "This user is currently restricted or banned in this group. Are you sure you want to unban and promote them?";
-"lng_sure_ban_admin" = "This user is an admin in this group. Are you sure you want to go ahead and restrict them?";
+"lng_sure_add_admin_invite_channel" = "This user is not a subscriber of this channel. Add them to the channel and promote them to admin?";
+"lng_sure_add_admin_unban" = "This user is currently restricted or banned. Are you sure you want to unban and promote them?";
+"lng_sure_ban_admin" = "This user is an admin. Are you sure you want to go ahead and restrict them?";
 "lng_sure_ban_user_group" = "Ban {user} in the group?";
 "lng_sure_enable_socks" = "Are you sure you want to enable this proxy?\n\nServer: {server}\nPort: {port}\n\nYou can change your proxy server later in the Settings (Connection Type).";
 "lng_sure_enable" = "Enable";
@@ -166,8 +167,8 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_photo_caption" = "Caption";
 "lng_photos_comment" = "Comment";
 
-"lng_phone_title" = "Your Phone";
-"lng_phone_desc" = "Please confirm your country code and\nenter your phone number.";
+"lng_phone_title" = "Your Phone Number";
+"lng_phone_desc" = "Please confirm your country code and\nenter your mobile phone number.";
 "lng_phone_notreg" = "If you don't have a Telegram account yet,\nplease [b]sign up[/b] with {link_start}Android / iPhone{link_end} or {signup_start}here{signup_end}";
 "lng_country_code" = "Country Code";
 "lng_bad_country_code" = "Invalid Country Code";
@@ -179,7 +180,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_code_desc" = "We have sent you a message with activation\ncode to your phone. Please enter it below.";
 "lng_code_telegram" = "Please enter the code you've just received\nin your previous [b]Telegram[/b] app.";
 "lng_code_no_telegram" = "Send code via SMS";
-"lng_code_call" = "Telegram will dial your number in {minutes}:{seconds}";
+"lng_code_call" = "Telegram will call you in {minutes}:{seconds}";
 "lng_code_calling" = "Requesting a call from Telegram...";
 "lng_code_called" = "Telegram dialed your number";
 
@@ -187,7 +188,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_bad_phone_noreg" = "Phone number not registered.";
 "lng_bad_code" = "You have entered an invalid code.";
 "lng_bad_name" = "Please enter your first and last name.";
-"lng_bad_photo" = "Bad image selected.";
+"lng_bad_photo" = "Sorry, Telegram can't process that type of image.";
 
 "lng_signin_title" = "Cloud password check";
 "lng_signin_desc" = "Please enter your cloud password.";
@@ -201,8 +202,8 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_signin_bad_password" = "You have entered a wrong password.";
 "lng_signin_wrong_code" = "You have entered an invalid code.";
 "lng_signin_try_password" = "Having trouble accessing your e-mail?";
-"lng_signin_password_removed" = "Your cloud password was disabled.\nYou can set a new one in Settings.";
-"lng_signin_no_email_forgot" = "Since you haven't provided a recovery\ne-mail when setting up your password, your remaining options are either to remember your password or to reset your account.";
+"lng_signin_password_removed" = "Your cloud password was disabled.\nYou can set up a new one in Settings.";
+"lng_signin_no_email_forgot" = "Since you didn't provide a recovery e-mail when setting up your password, your remaining options are either to remember your password or to reset your account.";
 "lng_signin_cant_email_forgot" = "If you can't restore access to the e-mail, your remaining options are either to remember your password or to reset your account.";
 "lng_signin_reset_account" = "Reset your account";
 "lng_signin_sure_reset" = "Warning!\n\nYou will lose all your chats and messages, along with any media and files you shared!\n\nDo you want to reset your account?";
@@ -251,10 +252,10 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_username_invalid" = "This username is invalid.";
 "lng_username_occupied" = "This username is already occupied.";
 "lng_username_too_short" = "This username is too short.";
-"lng_username_bad_symbols" = "This username has bad symbols.";
+"lng_username_bad_symbols" = "Only a-z, 0-9, and underscores allowed.";
 "lng_username_available" = "This username is available.";
 "lng_username_not_found" = "User @{user} not found.";
-"lng_username_link_willbe" = "Such link will open a chat with you:";
+"lng_username_link_willbe" = "This link will open a chat with you:";
 "lng_username_link" = "This link opens a chat with you:";
 "lng_username_copied" = "Link copied to clipboard.";
 
@@ -322,9 +323,9 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_settings_adaptive_wide" = "Adaptive layout for wide screens";
 
 "lng_backgrounds_header" = "Choose your new chat background";
-"lng_theme_sure_keep" = "Keep this color theme?";
-"lng_theme_reverting#one" = "Reverting to the old color theme in {count} second.";
-"lng_theme_reverting#other" = "Reverting to the old color theme in {count} seconds.";
+"lng_theme_sure_keep" = "Keep this theme?";
+"lng_theme_reverting#one" = "Reverting to the old theme in {count} second.";
+"lng_theme_reverting#other" = "Reverting to the old theme in {count} seconds.";
 "lng_theme_keep_changes" = "Keep changes";
 "lng_theme_revert" = "Revert";
 
@@ -339,7 +340,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_download_path_dir_radio" = "Custom folder, cleared only manually";
 "lng_download_path_choose" = "Choose download path";
 "lng_sure_clear_downloads" = "Do you want to remove all downloaded files from temp folder? It is done automatically on logout or program uninstall.";
-"lng_download_path_failed" = "File download could not be started. It could happen because of a bad download location.\n\nYou can change download path in Settings.";
+"lng_download_path_failed" = "File download could not be started.\n\nThis might be because the download location you've selected is invalid. Try changing the \"Download path\" in Settings.";
 "lng_download_path_settings" = "Settings";
 "lng_download_finish_failed" = "File download could not be finished.\n\nWould you like to try again?";
 "lng_download_path_clearing" = "Clearing...";
@@ -404,7 +405,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_cloud_password_bad" = "Password and hint cannot be the same.";
 "lng_cloud_password_email" = "Enter recovery e-mail";
 "lng_cloud_password_bad_email" = "Incorrect e-mail, please try other.";
-"lng_cloud_password_about" = "This password will be asked when you log in on a new device in addition to the pin code.";
+"lng_cloud_password_about" = "This password will be asked when you log in on a new device in addition to the SMS code.";
 "lng_cloud_password_about_recover" = "Warning! Are you sure you don't want to\nadd a password recovery e-mail?\n\nIf you forget your password, you will\nlose access to your Telegram account.";
 "lng_cloud_password_skip_email" = "Skip e-mail";
 "lng_cloud_password_almost" = "A confirmation link was sent to the\ne-mail you provided. Two-step verification will be enabled as soon as you follow that link.";
@@ -445,9 +446,9 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_settings_reset_button" = "Terminate";
 "lng_settings_manage_local_storage" = "Manage local storage";
 "lng_settings_ask_question" = "Ask a Question";
-"lng_settings_ask_sure" = "Please note that Telegram Support is done by volunteers. We try to respond as quickly as possible, but it may take a while.\n\nPlease take a look at the Telegram FAQ: it has important troubleshooting tips and answers to most questions.";
+"lng_settings_ask_sure" = "Please note that Telegram Support is run by volunteers. We try to respond as quickly as possible, but it may take a while.\n\nPlease take a look at the Telegram FAQ: it has important troubleshooting tips and answers to most questions.";
 "lng_settings_faq_button" = "Go to FAQ";
-"lng_settings_ask_ok" = "Ask";
+"lng_settings_ask_ok" = "Ask a Volunteer";
 "lng_settings_faq" = "Telegram FAQ";
 "lng_settings_logout" = "Log Out";
 "lng_sure_logout" = "Are you sure you want to log out?";
@@ -461,7 +462,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_sessions_terminate_all" = "Terminate all other sessions";
 
 "lng_blocked_list_title" = "Blocked users";
-"lng_blocked_list_unknown_phone" = "unknown phone";
+"lng_blocked_list_unknown_phone" = "unknown phone number";
 "lng_blocked_list_unblock" = "Unblock";
 "lng_blocked_list_add" = "Block user";
 "lng_blocked_list_add_title" = "Select user to block";
@@ -499,7 +500,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_edit_privacy_groups_always_title" = "Always allow";
 "lng_edit_privacy_groups_never_title" = "Never allow";
 
-"lng_edit_privacy_calls_title" = "Phone calls privacy";
+"lng_edit_privacy_calls_title" = "Telegram call privacy";
 "lng_edit_privacy_calls_description" = "You can restrict who can call you:";
 "lng_edit_privacy_calls_always_empty" = "Always allow";
 "lng_edit_privacy_calls_always#one" = "Always allow {count} user";
@@ -577,6 +578,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_profile_kick" = "Remove";
 "lng_profile_sure_kick" = "Remove {user} from the group?";
 "lng_profile_sure_kick_channel" = "Remove {user} from the channel?";
+"lng_profile_sure_remove_admin" = "Remove {user} from admins?";
 "lng_profile_loading" = "Loading...";
 "lng_profile_photos#one" = "{count} photo";
 "lng_profile_photos#other" = "{count} photos";
@@ -697,6 +699,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_channel_banned_status_restricted_by" = "Restricted by {user}";
 
 "lng_group_blocked_list_about" = "Banned users are removed from the group and can only come back if invited by an admin.\nInvite links don't work for them.";
+"lng_channel_blocked_list_about" = "Banned users are removed from the channel.\nInvite links don't work for them.";
 
 "lng_chat_all_members_admins" = "All Members Are Admins";
 "lng_chat_about_all_admins" = "Group members can add new members, edit name and photo of the group.";
@@ -724,7 +727,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_create_channel_link_invalid" = "This link is invalid";
 "lng_create_channel_link_occupied" = "Sorry, this link is already occupied";
 "lng_create_channel_link_too_short" = "Sorry, this link is too short";
-"lng_create_channel_link_bad_symbols" = "Sorry, this link has bad symbols";
+"lng_create_channel_link_bad_symbols" = "Only 0-9, a-z, and underscores allowed.";
 "lng_create_channel_link_available" = "This link is available";
 "lng_create_channel_link_copied" = "Link copied to clipboard";
 
@@ -735,18 +738,18 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_failed_add_not_mutual" = "Sorry, if a person leaves a group, only a mutual contact can bring them back (they need to have your phone number, and you need theirs).";
 "lng_failed_add_not_mutual_channel" = "Sorry, if a person leaves a channel, only a mutual contact can bring them back (they need to have your phone number, and you need theirs).";
 
-"lng_sure_delete_contact" = "Are you sure, you want to delete {contact} from your contact list?";
-"lng_sure_delete_history" = "Are you sure, you want to delete all message history with {contact}?\n\nThis action cannot be undone.";
+"lng_sure_delete_contact" = "Are you sure you want to delete {contact} from your contact list?";
+"lng_sure_delete_history" = "Are you sure you want to delete all message history with {contact}?\n\nThis action cannot be undone.";
 "lng_sure_delete_group_history" = "Are you sure, you want to delete all message history in «{group}»?\n\nThis action cannot be undone.";
 "lng_sure_delete_and_exit" = "Are you sure, you want to delete all message history and leave «{group}»?\n\nThis action cannot be undone.";
-"lng_sure_leave_channel" = "Are you sure, you want to leave\nthis channel?";
-"lng_sure_delete_channel" = "Are you sure, you want to delete this channel? All members will be removed and all messages will be lost.";
-"lng_sure_leave_group" = "Are you sure, you want to leave\nthis group?";
+"lng_sure_leave_channel" = "Are you sure you want to leave\nthis channel?";
+"lng_sure_delete_channel" = "Are you sure you want to delete this channel? All members will be removed and all messages will be lost.";
+"lng_sure_leave_group" = "Are you sure you want to leave this group?";
 "lng_sure_delete_group" = "Are you sure, you want to delete this group? All members will be removed and all messages will be lost.";
 "lng_sure_delete_saved_messages" = "Are you sure, you want to delete all your saved messages?\n\nThis action cannot be undone.";
 
 "lng_message_empty" = "Empty Message";
-"lng_message_unsupported" = "This message is not supported by your version of Telegram Desktop. Please update to the last version in Settings or install it from {link}";
+"lng_message_unsupported" = "This message is not supported by your version of Telegram Desktop. Please update to the latest version in Settings, or install it from {link}";
 
 "lng_duration_seconds#one" = "{count} second";
 "lng_duration_seconds#other" = "{count} seconds";
@@ -813,7 +816,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 
 "lng_profile_migrate_reached#one" = "{count} member limit reached";
 "lng_profile_migrate_reached#other" = "{count} members limit reached";
-"lng_profile_migrate_body" = "To get over this limit, you can upgrade your group to a supergroup.";
+"lng_profile_migrate_body" = "To add more members, you can upgrade your group to a supergroup.";
 "lng_profile_migrate_learn_more" = "Learn more »";
 "lng_profile_migrate_button" = "Upgrade to supergroup";
 "lng_profile_convert_title" = "Convert to supergroup";
@@ -864,8 +867,8 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_cancel_edit_post_yes" = "Yes";
 "lng_cancel_edit_post_no" = "No";
 
-"lng_bot_share_location_unavailable" = "Sorry, the location sharing is currently unavailable in Telegram Desktop.";
-"lng_bot_share_phone" = "Share Phone Number?";
+"lng_bot_share_location_unavailable" = "Sorry, location sharing is currently unavailable in Telegram Desktop.";
+"lng_bot_share_phone" = "Do you want to share your phone number with this bot?";
 "lng_bot_share_phone_confirm" = "Share";
 
 "lng_attach_failed" = "Failed";
@@ -900,7 +903,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_faved_stickers_add" = "Add to Favorites";
 "lng_faved_stickers_remove" = "Remove from Favorites";
 "lng_group_stickers" = "Group stickers";
-"lng_group_stickers_description" = "You can choose sticker set which will be available for every member while in the group chat.";
+"lng_group_stickers_description" = "You can choose a sticker set which will be available for every member while in the group chat.";
 "lng_group_stickers_add" = "Choose sticker set";
 
 "lng_switch_stickers" = "Stickers";
@@ -936,6 +939,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_stickers_group_from_featured" = "Choose from trending stickers";
 
 "lng_in_dlg_photo" = "Photo";
+"lng_in_dlg_album" = "Album";
 "lng_in_dlg_video" = "Video";
 "lng_in_dlg_audio_file" = "Audio file";
 "lng_in_dlg_contact" = "Contact";
@@ -989,7 +993,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 
 "lng_open_this_link" = "Open this link?";
 "lng_open_link" = "Open";
-"lng_allow_bot_pass" = "Do you allow {bot_name} to pass your Telegram name and id to the web pages you open via this bot?";
+"lng_allow_bot_pass" = "Allow {bot_name} to pass your Telegram name and ID to the web pages you open via this bot?";
 "lng_allow_bot" = "Allow";
 
 "lng_bot_start" = "Start";
@@ -998,7 +1002,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_bot_groups_not_found" = "No groups found";
 "lng_bot_sure_invite" = "Add the bot to «{group}»?";
 "lng_bot_already_in_group" = "The bot is already a member of the group.";
-"lng_bot_choose_chat" = "Select a Chat";
+"lng_bot_choose_chat" = "Select a chat";
 "lng_bot_no_chats" = "You have no chats";
 "lng_bot_chats_not_found" = "No chats found";
 "lng_bot_sure_share_game" = "Share the game with {user}?";
@@ -1091,18 +1095,21 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_context_forward_selected" = "Forward Selected";
 "lng_context_delete_selected" = "Delete Selected";
 "lng_context_clear_selection" = "Clear Selection";
-"lng_send_images_compress#one" = "Compress image";
-"lng_send_images_compress#other" = "Compress images";
 "lng_send_image_empty" = "Could not send an empty file: {name}";
 "lng_send_image_too_large" = "Could not send a file, because it is larger than 1500 MB: {name}";
 "lng_send_images_selected#one" = "{count} image selected";
 "lng_send_images_selected#other" = "{count} images selected";
 "lng_send_photos#one" = "Send {count} photo";
 "lng_send_photos#other" = "Send {count} photos";
+"lng_send_separate_photos" = "Send as separate photos";
+"lng_send_separate_photos_videos" = "Send as separate media";
 "lng_send_files_selected#one" = "{count} file selected";
 "lng_send_files_selected#other" = "{count} files selected";
 "lng_send_files#one" = "Send {count} file";
 "lng_send_files#other" = "Send {count} files";
+"lng_send_album" = "Send as an album";
+"lng_send_photo" = "Send as a photo";
+"lng_send_file" = "Send as a file";
 
 "lng_forward_choose" = "Choose recipient...";
 "lng_forward_cant" = "Sorry, no way to forward here :(";
@@ -1122,7 +1129,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 
 "lng_share_cant" = "Sorry, no way to share here :(";
 "lng_reply_cant" = "Sorry, no way to reply to an old message in supergroup :(";
-"lng_reply_cant_forward" = "Sorry, no way to reply to an old message in supergroup :( Do you wish to forward it and add your comment?";
+"lng_reply_cant_forward" = "Sorry, you can't reply to a message that was sent before the group was upgraded to a supergroup. Do you wish to forward it and add your comment?";
 
 "lng_share_title" = "Share to";
 "lng_share_copy_link" = "Copy share link";
@@ -1131,7 +1138,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_share_game_link_copied" = "Game link copied to clipboard.";
 "lng_share_done" = "Done!";
 
-"lng_contact_phone" = "Phone number";
+"lng_contact_phone" = "Phone Number";
 "lng_enter_contact_data" = "New Contact";
 "lng_edit_contact_title" = "Edit contact name";
 "lng_edit_channel_title" = "Edit channel";
@@ -1145,8 +1152,8 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_add_contact" = "Create";
 "lng_add_contact_button" = "New contact";
 "lng_contacts_header" = "Contacts";
-"lng_contact_not_joined" = "Unfortunately {name} did not join Telegram yet, but you can send your friend an invitation.\n\nWe will notify you about any of your contacts who is joining Telegram.";
-"lng_try_other_contact" = "Try other";
+"lng_contact_not_joined" = "Unfortunately {name} has not joined Telegram yet, but you can send them an invitation.\n\nWe will notify you about any of your contacts who join Telegram.";
+"lng_try_other_contact" = "Try someone else";
 "lng_create_group_link" = "Link";
 "lng_create_group_invite_link" = "Invite link";
 "lng_create_group_description" = "Description (optional)";
@@ -1233,7 +1240,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_confirm_phone_enter_code" = "Please enter the code.";
 
 "lng_theme_editor_no_keys" = "No keys in the palette yet";
-"lng_theme_editor_cant_change_theme" = "You can not apply new themes while you're editing the color palette. Please close the theme editor first.";
+"lng_theme_editor_cant_change_theme" = "You can't apply a new theme while you're editing the colour palette. Please close the theme editor first.";
 "lng_theme_editor_new_keys" = "Not in the palette yet";
 "lng_theme_editor_background_image" = "Background image";
 "lng_theme_editor_saved_to_jpg" = "Saved to JPEG, {size}";
@@ -1274,7 +1281,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_call_bar_hangup" = "End call";
 
 "lng_call_box_title" = "Calls";
-"lng_call_box_about" = "You didn't make any calls yet.";
+"lng_call_box_about" = "You haven't made any Telegram calls yet.";
 "lng_call_box_status_today" = "{time}";
 "lng_call_box_status_yesterday" = "Yesterday at {time}";
 "lng_call_box_status_date" = "{date} at {time}";
@@ -1295,7 +1302,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_player_message_yesterday" = "Yesterday at {time}";
 "lng_player_message_date" = "{date} at {time}";
 
-"lng_rights_edit_admin" = "Edit administrator";
+"lng_rights_edit_admin" = "Manage permissions";
 "lng_rights_edit_admin_header" = "What can this admin do?";
 "lng_rights_about_add_admins_yes" = "This admin will be able to add new admins with the same (or more limited) permissions.";
 "lng_rights_about_add_admins_no" = "This admin will not be able to add new admins.";
@@ -1399,9 +1406,9 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_admin_log_banned" = "banned {user}";
 "lng_admin_log_restricted" = "changed restrictions for {user} {until}";
 "lng_admin_log_promoted" = "changed privileges for {user}";
-"lng_admin_log_changed_stickers_group" = "{from} changed group {sticker_set}";
+"lng_admin_log_changed_stickers_group" = "{from} changed the group's {sticker_set}";
 "lng_admin_log_changed_stickers_set" = "sticker set";
-"lng_admin_log_removed_stickers_group" = "{from} removed group sticker set";
+"lng_admin_log_removed_stickers_group" = "{from} removed the group's sticker set";
 "lng_admin_log_user_with_username" = "{name} ({mention})";
 "lng_admin_log_restricted_forever" = "indefinitely";
 "lng_admin_log_restricted_until" = "until {date}";

Telegram/Resources/uwp/AppX/AppxManifest.xml

@@ -9,7 +9,7 @@
   <Identity Name="TelegramMessengerLLP.TelegramDesktop"
     ProcessorArchitecture="ARCHITECTURE"
     Publisher="CN=536BC709-8EE1-4478-AF22-F0F0F26FF64A"
-    Version="1.2.0.0" />
+    Version="1.2.6.0" />
   <Properties>
     <DisplayName>Telegram Desktop</DisplayName>
     <PublisherDisplayName>Telegram Messenger LLP</PublisherDisplayName>

Telegram/Resources/winrc/Telegram.rc

@@ -34,8 +34,8 @@ IDI_ICON1               ICON                    "..\\art\\icon256.ico"
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 1,2,0,0
- PRODUCTVERSION 1,2,0,0
+ FILEVERSION 1,2,6,0
+ PRODUCTVERSION 1,2,6,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -52,10 +52,10 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Telegram Messenger LLP"
             VALUE "FileDescription", "Telegram Desktop"
-            VALUE "FileVersion", "1.2.0.0"
+            VALUE "FileVersion", "1.2.6.0"
             VALUE "LegalCopyright", "Copyright (C) 2014-2017"
             VALUE "ProductName", "Telegram Desktop"
-            VALUE "ProductVersion", "1.2.0.0"
+            VALUE "ProductVersion", "1.2.6.0"
         END
     END
     BLOCK "VarFileInfo"

Telegram/Resources/winrc/Updater.rc

@@ -25,8 +25,8 @@ LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 1,2,0,0
- PRODUCTVERSION 1,2,0,0
+ FILEVERSION 1,2,6,0
+ PRODUCTVERSION 1,2,6,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -43,10 +43,10 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Telegram Messenger LLP"
             VALUE "FileDescription", "Telegram Desktop Updater"
-            VALUE "FileVersion", "1.2.0.0"
+            VALUE "FileVersion", "1.2.6.0"
             VALUE "LegalCopyright", "Copyright (C) 2014-2017"
             VALUE "ProductName", "Telegram Desktop"
-            VALUE "ProductVersion", "1.2.0.0"
+            VALUE "ProductVersion", "1.2.6.0"
         END
     END
     BLOCK "VarFileInfo"

Telegram/SourceFiles/_other/updater.cpp

@@ -22,7 +22,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 
 bool _debug = false;
 
-wstring updaterName, updaterDir, updateTo, exeName;
+wstring updaterName, updaterDir, updateTo, exeName, customWorkingDir, customKeyFile;
 
 bool equal(const wstring &a, const wstring &b) {
 	return !_wcsicmp(a.c_str(), b.c_str());
@@ -356,6 +356,7 @@ int APIENTRY wWinMain(HINSTANCE instance, HINSTANCE prevInstance, LPWSTR cmdPara
 	args = CommandLineToArgvW(GetCommandLine(), &argsCount);
 	if (args) {
 		for (int i = 1; i < argsCount; ++i) {
+			writeLog(std::wstring(L"Argument: ") + args[i]);
 			if (equal(args[i], L"-update")) {
 				needupdate = true;
 			} else if (equal(args[i], L"-autostart")) {
@@ -368,17 +369,25 @@ int APIENTRY wWinMain(HINSTANCE instance, HINSTANCE prevInstance, LPWSTR cmdPara
 			} else if (equal(args[i], L"-testmode")) {
 				testmode = true;
 			} else if (equal(args[i], L"-writeprotected") && ++i < argsCount) {
+				writeLog(std::wstring(L"Argument: ") + args[i]);
 				writeprotected = true;
 				updateTo = args[i];
-				for (int i = 0, l = updateTo.size(); i < l; ++i) {
-					if (updateTo[i] == L'/') {
-						updateTo[i] = L'\\';
+				for (int j = 0, l = updateTo.size(); j < l; ++j) {
+					if (updateTo[j] == L'/') {
+						updateTo[j] = L'\\';
 					}
 				}
+			} else if (equal(args[i], L"-workdir") && ++i < argsCount) {
+				writeLog(std::wstring(L"Argument: ") + args[i]);
+				customWorkingDir = args[i];
+			} else if (equal(args[i], L"-key") && ++i < argsCount) {
+				writeLog(std::wstring(L"Argument: ") + args[i]);
+				customKeyFile = args[i];
 			} else if (equal(args[i], L"-exename") && ++i < argsCount) {
+				writeLog(std::wstring(L"Argument: ") + args[i]);
 				exeName = args[i];
-				for (int i = 0, l = exeName.size(); i < l; ++i) {
-					if (exeName[i] == L'/' || exeName[i] == L'\\') {
+				for (int j = 0, l = exeName.size(); j < l; ++j) {
+					if (exeName[j] == L'/' || exeName[j] == L'\\') {
 						exeName = L"Telegram.exe";
 						break;
 					}
@@ -391,6 +400,7 @@ int APIENTRY wWinMain(HINSTANCE instance, HINSTANCE prevInstance, LPWSTR cmdPara
 		if (needupdate) writeLog(L"Need to update!");
 		if (autostart) writeLog(L"From autostart!");
 		if (writeprotected) writeLog(L"Write Protected folder!");
+		if (!customWorkingDir.empty()) writeLog(L"Will pass custom working dir: " + customWorkingDir);
 
 		updaterName = args[0];
 		writeLog(L"Updater name is: " + updaterName);
@@ -428,6 +438,13 @@ int APIENTRY wWinMain(HINSTANCE instance, HINSTANCE prevInstance, LPWSTR cmdPara
 	if (debug) targs += L" -debug";
 	if (startintray) targs += L" -startintray";
 	if (testmode) targs += L" -testmode";
+	if (!customWorkingDir.empty()) {
+		targs += L" -workdir \"" + customWorkingDir + L"\"";
+	}
+	if (!customKeyFile.empty()) {
+		targs += L" -key \"" + customKeyFile + L"\"";
+	}
+	writeLog(L"Result arguments: " + targs);
 
 	bool executed = false;
 	if (writeprotected) { // run un-elevated

Telegram/SourceFiles/_other/updater_linux.cpp

@@ -344,9 +344,16 @@ string CurrentExecutablePath(int argc, char *argv[]) {
 }
 
 int main(int argc, char *argv[]) {
-	bool needupdate = true, autostart = false, debug = false, tosettings = false, startintray = false, testmode = false;
+	bool needupdate = true;
+	bool autostart = false;
+	bool debug = false;
+	bool tosettings = false;
+	bool startintray = false;
+	bool testmode = false;
+	bool customWorkingDir = false;
 
-	char *key = 0, *crashreport = 0;
+	char *key = 0;
+	char *workdir = 0;
 	for (int i = 1; i < argc; ++i) {
 		if (equal(argv[i], "-noupdate")) {
 			needupdate = false;
@@ -360,12 +367,12 @@ int main(int argc, char *argv[]) {
 			testmode = true;
 		} else if (equal(argv[i], "-tosettings")) {
 			tosettings = true;
+		} else if (equal(argv[i], "-workdir_custom")) {
+			customWorkingDir = true;
 		} else if (equal(argv[i], "-key") && ++i < argc) {
 			key = argv[i];
 		} else if (equal(argv[i], "-workpath") && ++i < argc) {
-			workDir = argv[i];
-		} else if (equal(argv[i], "-crashreport") && ++i < argc) {
-			crashreport = argv[i];
+			workDir = workdir = argv[i];
 		} else if (equal(argv[i], "-exename") && ++i < argc) {
 			exeName = argv[i];
 		} else if (equal(argv[i], "-exepath") && ++i < argc) {
@@ -401,6 +408,8 @@ int main(int argc, char *argv[]) {
 			}
 			if (needupdate) {
 				if (workDir.empty()) { // old app launched, update prepared in tupdates/ready (not in tupdates/temp)
+					customWorkingDir = false;
+
 					writeLog("No workdir, trying to figure it out");
 					struct passwd *pw = getpwuid(getuid());
 					if (pw && pw->pw_dir && strlen(pw->pw_dir)) {
@@ -446,22 +455,30 @@ int main(int argc, char *argv[]) {
 	string fullBinaryPath = exePath + exeName;
 	strcpy(path, fullBinaryPath.c_str());
 
-	char *args[MaxArgsCount] = {0}, p_noupdate[] = "-noupdate", p_autostart[] = "-autostart", p_debug[] = "-debug", p_tosettings[] = "-tosettings", p_key[] = "-key", p_startintray[] = "-startintray", p_testmode[] = "-testmode";
+	char *args[MaxArgsCount] = { 0 };
+	char p_noupdate[] = "-noupdate";
+	char p_autostart[] = "-autostart";
+	char p_debug[] = "-debug";
+	char p_tosettings[] = "-tosettings";
+	char p_key[] = "-key";
+	char p_startintray[] = "-startintray";
+	char p_testmode[] = "-testmode";
+	char p_workdir[] = "-workdir";
 	int argIndex = 0;
 	args[argIndex++] = path;
-	if (crashreport) {
-		args[argIndex++] = crashreport;
-	} else {
-		args[argIndex++] = p_noupdate;
-		if (autostart) args[argIndex++] = p_autostart;
-		if (debug) args[argIndex++] = p_debug;
-		if (startintray) args[argIndex++] = p_startintray;
-		if (testmode) args[argIndex++] = p_testmode;
-		if (tosettings) args[argIndex++] = p_tosettings;
-		if (key) {
-			args[argIndex++] = p_key;
-			args[argIndex++] = key;
-		}
+	args[argIndex++] = p_noupdate;
+	if (autostart) args[argIndex++] = p_autostart;
+	if (debug) args[argIndex++] = p_debug;
+	if (startintray) args[argIndex++] = p_startintray;
+	if (testmode) args[argIndex++] = p_testmode;
+	if (tosettings) args[argIndex++] = p_tosettings;
+	if (key) {
+		args[argIndex++] = p_key;
+		args[argIndex++] = key;
+	}
+	if (customWorkingDir && workdir) {
+		args[argIndex++] = p_workdir;
+		args[argIndex++] = workdir;
 	}
 	pid_t pid = fork();
 	switch (pid) {

Telegram/SourceFiles/_other/updater_osx.m

@@ -23,7 +23,6 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 NSString *appName = @"Telegram.app";
 NSString *appDir = nil;
 NSString *workDir = nil;
-NSString *crashReportArg = nil;
 
 #ifdef _DEBUG
 BOOL _debug = YES;
@@ -90,6 +89,7 @@ int main(int argc, const char * argv[]) {
 	openLog();
 	pid_t procId = 0;
 	BOOL update = YES, toSettings = NO, autoStart = NO, startInTray = NO, testMode = NO;
+	BOOL customWorkingDir = NO;
 	NSString *key = nil;
 	for (int i = 0; i < argc; ++i) {
 		if ([@"-workpath" isEqualToString:[NSString stringWithUTF8String:argv[i]]]) {
@@ -102,10 +102,6 @@ int main(int argc, const char * argv[]) {
 				[formatter setNumberStyle:NSNumberFormatterDecimalStyle];
 				procId = [[formatter numberFromString:[NSString stringWithUTF8String:argv[i]]] intValue];
 			}
-		} else if ([@"-crashreport" isEqualToString:[NSString stringWithUTF8String:argv[i]]]) {
-			if (++i < argc) {
-				crashReportArg = [NSString stringWithUTF8String:argv[i]];
-			}
 		} else if ([@"-noupdate" isEqualToString:[NSString stringWithUTF8String:argv[i]]]) {
 			update = NO;
 		} else if ([@"-tosettings" isEqualToString:[NSString stringWithUTF8String:argv[i]]]) {
@@ -118,11 +114,16 @@ int main(int argc, const char * argv[]) {
 			startInTray = YES;
 		} else if ([@"-testmode" isEqualToString:[NSString stringWithUTF8String:argv[i]]]) {
 			testMode = YES;
+		} else if ([@"-workdir_custom" isEqualToString:[NSString stringWithUTF8String:argv[i]]]) {
+			customWorkingDir = YES;
 		} else if ([@"-key" isEqualToString:[NSString stringWithUTF8String:argv[i]]]) {
 			if (++i < argc) key = [NSString stringWithUTF8String:argv[i]];
 		}
 	}
-	if (!workDir) workDir = appDir;
+	if (!workDir) {
+		workDir = appDir;
+		customWorkingDir = NO;
+	}
 	openLog();
 	NSMutableArray *argsArr = [[NSMutableArray alloc] initWithCapacity:argc];
 	for (int i = 0; i < argc; ++i) {
@@ -242,17 +243,19 @@ int main(int argc, const char * argv[]) {
 	}
 
 	NSString *appPath = [[NSArray arrayWithObjects:appDir, appRealName, nil] componentsJoinedByString:@""];
-	NSMutableArray *args = [[NSMutableArray alloc] initWithObjects: crashReportArg ? crashReportArg : @"-noupdate", nil];
-	if (!crashReportArg) {
-		if (toSettings) [args addObject:@"-tosettings"];
-		if (_debug) [args addObject:@"-debug"];
-		if (startInTray) [args addObject:@"-startintray"];
-		if (testMode) [args addObject:@"-testmode"];
-		if (autoStart) [args addObject:@"-autostart"];
-		if (key) {
-			[args addObject:@"-key"];
-			[args addObject:key];
-		}
+	NSMutableArray *args = [[NSMutableArray alloc] initWithObjects: @"-noupdate", nil];
+	if (toSettings) [args addObject:@"-tosettings"];
+	if (_debug) [args addObject:@"-debug"];
+	if (startInTray) [args addObject:@"-startintray"];
+	if (testMode) [args addObject:@"-testmode"];
+	if (autoStart) [args addObject:@"-autostart"];
+	if (key) {
+		[args addObject:@"-key"];
+		[args addObject:key];
+	}
+	if (customWorkingDir) {
+		[args addObject:@"-workdir"];
+		[args addObject:workDir];
 	}
 	writeLog([[NSArray arrayWithObjects:@"Running application '", appPath, @"' with args '", [args componentsJoinedByString:@"' '"], @"'..", nil] componentsJoinedByString:@""]);
 	NSError *error = nil;

Telegram/SourceFiles/apiwrap.cpp

@@ -33,16 +33,19 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "mainwidget.h"
 #include "boxes/add_contact_box.h"
 #include "history/history_message.h"
+#include "history/history_media_types.h"
+#include "history/history_item_components.h"
 #include "storage/localstorage.h"
 #include "auth_session.h"
 #include "boxes/confirm_box.h"
-#include "window/themes/window_theme.h"
 #include "window/notifications_manager.h"
 #include "chat_helpers/message_field.h"
 #include "chat_helpers/stickers.h"
+#include "storage/localimageloader.h"
 #include "storage/storage_facade.h"
 #include "storage/storage_shared_media.h"
 #include "storage/storage_user_photos.h"
+#include "storage/storage_media_prepare.h"
 #include "data/data_sparse_ids.h"
 #include "data/data_search_controller.h"
 #include "data/data_channel_admins.h"
@@ -58,6 +61,76 @@ constexpr auto kUnreadMentionsFirstRequestLimit = 10;
 constexpr auto kUnreadMentionsNextRequestLimit = 100;
 constexpr auto kSharedMediaLimit = 100;
 constexpr auto kReadFeaturedSetsTimeout = TimeMs(1000);
+constexpr auto kFileLoaderQueueStopTimeout = TimeMs(5000);
+
+bool IsSilentPost(not_null<HistoryItem*> item, bool silent) {
+	const auto history = item->history();
+	return silent
+		&& history->peer->isChannel()
+		&& !history->peer->isMegagroup();
+}
+
+MTPVector<MTPDocumentAttribute> ComposeSendingDocumentAttributes(
+		not_null<DocumentData*> document) {
+	const auto filenameAttribute = MTP_documentAttributeFilename(
+		MTP_string(document->filename()));
+	const auto dimensions = document->dimensions;
+	auto attributes = QVector<MTPDocumentAttribute>(1, filenameAttribute);
+	if (dimensions.width() > 0 && dimensions.height() > 0) {
+		const auto duration = document->duration();
+		if (duration >= 0) {
+			auto flags = MTPDdocumentAttributeVideo::Flags(0);
+			if (document->isVideoMessage()) {
+				flags |= MTPDdocumentAttributeVideo::Flag::f_round_message;
+			}
+			attributes.push_back(MTP_documentAttributeVideo(
+				MTP_flags(flags),
+				MTP_int(duration),
+				MTP_int(dimensions.width()),
+				MTP_int(dimensions.height())));
+		} else {
+			attributes.push_back(MTP_documentAttributeImageSize(
+				MTP_int(dimensions.width()),
+				MTP_int(dimensions.height())));
+		}
+	}
+	if (document->type == AnimatedDocument) {
+		attributes.push_back(MTP_documentAttributeAnimated());
+	} else if (document->type == StickerDocument && document->sticker()) {
+		attributes.push_back(MTP_documentAttributeSticker(
+			MTP_flags(0),
+			MTP_string(document->sticker()->alt),
+			document->sticker()->set,
+			MTPMaskCoords()));
+	} else if (const auto song = document->song()) {
+		const auto flags = MTPDdocumentAttributeAudio::Flag::f_title
+			| MTPDdocumentAttributeAudio::Flag::f_performer;
+		attributes.push_back(MTP_documentAttributeAudio(
+			MTP_flags(flags),
+			MTP_int(song->duration),
+			MTP_string(song->title),
+			MTP_string(song->performer),
+			MTPstring()));
+	} else if (const auto voice = document->voice()) {
+		const auto flags = MTPDdocumentAttributeAudio::Flag::f_voice
+			| MTPDdocumentAttributeAudio::Flag::f_waveform;
+		attributes.push_back(MTP_documentAttributeAudio(
+			MTP_flags(flags),
+			MTP_int(voice->duration),
+			MTPstring(),
+			MTPstring(),
+			MTP_bytes(documentWaveformEncode5bit(voice->waveform))));
+	}
+	return MTP_vector<MTPDocumentAttribute>(attributes);
+}
+
+FileLoadTo FileLoadTaskOptions(const ApiWrap::SendOptions &options) {
+	const auto peer = options.history->peer;
+	return FileLoadTo(
+		peer->id,
+		peer->notifySilentPosts(),
+		options.replyTo);
+}
 
 } // namespace
 
@@ -66,71 +139,40 @@ ApiWrap::ApiWrap(not_null<AuthSession*> session)
 , _messageDataResolveDelayed([this] { resolveMessageDatas(); })
 , _webPagesTimer([this] { resolveWebPages(); })
 , _draftsSaveTimer([this] { saveDraftsToCloud(); })
-, _featuredSetsReadTimer([this] { readFeaturedSets(); }) {
+, _featuredSetsReadTimer([this] { readFeaturedSets(); })
+, _fileLoader(std::make_unique<TaskQueue>(kFileLoaderQueueStopTimeout)) {
 }
 
-void ApiWrap::start() {
-	Window::Theme::Background()->start();
-	requestAppChangelogs();
+void ApiWrap::requestChangelog(
+		const QString &sinceVersion,
+		base::lambda<void(const MTPUpdates &result)> callback) {
+	request(MTPhelp_GetAppChangelog(
+		MTP_string(sinceVersion)
+	)).done(
+		callback
+	).send();
 }
 
-void ApiWrap::requestAppChangelogs() {
-	auto oldAppVersion = Local::oldMapVersion();
-	if (oldAppVersion > 0 && oldAppVersion < AppVersion) {
-		_changelogSubscription = subscribe(_session->data().moreChatsLoaded(), [this, oldAppVersion] {
-			auto oldVersionString = qsl("%1.%2.%3").arg(oldAppVersion / 1000000).arg((oldAppVersion % 1000000) / 1000).arg(oldAppVersion % 1000);
-			request(MTPhelp_GetAppChangelog(MTP_string(oldVersionString))).done([this, oldAppVersion](const MTPUpdates &result) {
-				applyUpdates(result);
-
-				auto resultEmpty = true;
-				switch (result.type()) {
-				case mtpc_updateShortMessage:
-				case mtpc_updateShortChatMessage:
-				case mtpc_updateShort: resultEmpty = false; break;
-				case mtpc_updatesCombined: resultEmpty = result.c_updatesCombined().vupdates.v.isEmpty(); break;
-				case mtpc_updates: resultEmpty = result.c_updates().vupdates.v.isEmpty(); break;
-				case mtpc_updatesTooLong:
-				case mtpc_updateShortSentMessage: LOG(("API Error: Bad updates type in app changelog.")); break;
-				}
-				if (resultEmpty) {
-					addLocalChangelogs(oldAppVersion);
-				}
-			}).send();
-			unsubscribe(base::take(_changelogSubscription));
-		});
-	}
-}
-
-void ApiWrap::addLocalChangelogs(int oldAppVersion) {
-	auto addedSome = false;
-	auto addLocalChangelog = [this, &addedSome](const QString &text) {
-		auto textWithEntities = TextWithEntities { text };
-		TextUtilities::ParseEntities(textWithEntities, TextParseLinks);
-		App::wnd()->serviceNotification(textWithEntities, MTP_messageMediaEmpty(), unixtime());
-		addedSome = true;
-	};
-	if (cAlphaVersion() || cBetaVersion()) {
-		auto addLocalAlphaChangelog = [this, oldAppVersion, addLocalChangelog](int changeVersion, const char *changes) {
-			if (oldAppVersion < changeVersion) {
-				auto changeVersionString = QString::number(changeVersion / 1000000) + '.' + QString::number((changeVersion % 1000000) / 1000) + ((changeVersion % 1000) ? ('.' + QString::number(changeVersion % 1000)) : QString());
-				auto text = qsl("New in version %1:\n\n").arg(changeVersionString) + QString::fromUtf8(changes).trimmed();
-				addLocalChangelog(text);
-			}
-		};
-		addLocalAlphaChangelog(1001024, "\xE2\x80\x94 Radically improved navigation. New side panel on the right with quick access to shared media and group members.\n\xE2\x80\x94 Pinned Messages. If you are a channel admin, pin messages to focus your subscribers\xE2\x80\x99 attention on important announcements.\n\xE2\x80\x94 Also supported clearing history in supergroups and added a host of minor improvements.");
-		addLocalAlphaChangelog(1001026, "\xE2\x80\x94 Admin badges in supergroup messages.\n\xE2\x80\x94 Fix crashing on launch in OS X 10.6.\n\xE2\x80\x94 Bug fixes and other minor improvements.");
-		addLocalAlphaChangelog(1001027, "\xE2\x80\x94 Saved Messages. Bookmark messages by forwarding them to \xE2\x80\x9C""Saved Messages\xE2\x80\x9D. Access them from the Chats list or from the side menu.");
-	}
-	if (!addedSome) {
-		auto text = lng_new_version_wrap(lt_version, str_const_toString(AppVersionStr), lt_changes, lang(lng_new_version_minor), lt_link, qsl("https://desktop.telegram.org/changelog")).trimmed();
-		addLocalChangelog(text);
-	}
-}
-
-void ApiWrap::applyUpdates(const MTPUpdates &updates, uint64 sentMessageRandomId) {
+void ApiWrap::applyUpdates(
+		const MTPUpdates &updates,
+		uint64 sentMessageRandomId) {
 	App::main()->feedUpdates(updates, sentMessageRandomId);
 }
 
+void ApiWrap::sendMessageFail(const RPCError &error) {
+	if (error.type() == qstr("PEER_FLOOD")) {
+		Ui::show(Box<InformBox>(
+			PeerFloodErrorText(PeerFloodType::Send)));
+	} else if (error.type() == qstr("USER_BANNED_IN_CHANNEL")) {
+		const auto link = textcmdLink(
+			Messenger::Instance().createInternalLinkFull(qsl("spambot")),
+			lang(lng_cant_more_info));
+		Ui::show(Box<InformBox>(lng_error_public_groups_denied(
+			lt_more_info,
+			link)));
+	}
+}
+
 void ApiWrap::requestMessageData(ChannelData *channel, MsgId msgId, RequestMessageDataCallback callback) {
 	auto &req = (channel ? _channelMessageDataRequests[channel][msgId] : _messageDataRequests[msgId]);
 	if (callback) {
@@ -845,47 +887,65 @@ void ApiWrap::requestSelfParticipant(ChannelData *channel) {
 	_selfParticipantRequests.insert(channel, requestId);
 }
 
-void ApiWrap::kickParticipant(PeerData *peer, UserData *user, const MTPChannelBannedRights &currentRights) {
-	auto kick = KickRequest(peer, user);
-	if (_kickRequests.contains(kick)) return;
-
-	if (auto channel = peer->asChannel()) {
-		auto rights = ChannelData::KickedRestrictedRights();
-		auto requestId = request(MTPchannels_EditBanned(channel->inputChannel, user->inputUser, rights)).done([this, channel, user, currentRights, rights](const MTPUpdates &result) {
-			applyUpdates(result);
-
-			_kickRequests.remove(KickRequest(channel, user));
-			channel->applyEditBanned(user, currentRights, rights);
-		}).fail([this, kick](const RPCError &error) {
-			_kickRequests.remove(kick);
-		}).send();
-
-		_kickRequests.insert(kick, requestId);
-	}
+void ApiWrap::kickParticipant(
+		not_null<ChatData*> chat,
+		not_null<UserData*> user) {
+	request(MTPmessages_DeleteChatUser(
+		chat->inputChat,
+		user->inputUser
+	)).done([=](const MTPUpdates &result) {
+		applyUpdates(result);
+	}).send();
 }
 
-void ApiWrap::unblockParticipant(PeerData *peer, UserData *user) {
-	auto kick = KickRequest(peer, user);
+void ApiWrap::kickParticipant(
+		not_null<ChannelData*> channel,
+		not_null<UserData*> user,
+		const MTPChannelBannedRights &currentRights) {
+	const auto kick = KickRequest(channel, user);
 	if (_kickRequests.contains(kick)) return;
 
-	if (auto channel = peer->asChannel()) {
-		auto requestId = request(MTPchannels_EditBanned(channel->inputChannel, user->inputUser, MTP_channelBannedRights(MTP_flags(0), MTP_int(0)))).done([this, peer, user](const MTPUpdates &result) {
-			applyUpdates(result);
+	const auto rights = ChannelData::KickedRestrictedRights();
+	const auto requestId = request(MTPchannels_EditBanned(
+		channel->inputChannel,
+		user->inputUser,
+		rights
+	)).done([=](const MTPUpdates &result) {
+		applyUpdates(result);
 
-			_kickRequests.remove(KickRequest(peer, user));
-			if (auto channel = peer->asMegagroup()) {
-				if (channel->kickedCount() > 0) {
-					channel->setKickedCount(channel->kickedCount() - 1);
-				} else {
-					channel->updateFullForced();
-				}
-			}
-		}).fail([this, kick](const RPCError &error) {
-			_kickRequests.remove(kick);
-		}).send();
+		_kickRequests.remove(KickRequest(channel, user));
+		channel->applyEditBanned(user, currentRights, rights);
+	}).fail([this, kick](const RPCError &error) {
+		_kickRequests.remove(kick);
+	}).send();
 
-		_kickRequests.insert(kick, requestId);
-	}
+	_kickRequests.emplace(kick, requestId);
+}
+
+void ApiWrap::unblockParticipant(
+		not_null<ChannelData*> channel,
+		not_null<UserData*> user) {
+	const auto kick = KickRequest(channel, user);
+	if (_kickRequests.contains(kick)) return;
+
+	const auto requestId = request(MTPchannels_EditBanned(
+		channel->inputChannel,
+		user->inputUser,
+		MTP_channelBannedRights(MTP_flags(0), MTP_int(0))
+	)).done([=](const MTPUpdates &result) {
+		applyUpdates(result);
+
+		_kickRequests.remove(KickRequest(channel, user));
+		if (channel->kickedCount() > 0) {
+			channel->setKickedCount(channel->kickedCount() - 1);
+		} else {
+			channel->updateFullForced();
+		}
+	}).fail([this, kick](const RPCError &error) {
+		_kickRequests.remove(kick);
+	}).send();
+
+	_kickRequests.emplace(kick, requestId);
 }
 
 void ApiWrap::requestChannelMembersForAdd(
@@ -946,7 +1006,7 @@ void ApiWrap::saveStickerSets(const Stickers::Order &localOrder, const Stickers:
 	request(base::take(_stickersClearRecentRequestId)).cancel();
 
 	auto writeInstalled = true, writeRecent = false, writeCloudRecent = false, writeFaved = false, writeArchived = false;
-	auto &recent = cGetRecentStickers();
+	auto &recent = Stickers::GetRecentPack();
 	auto &sets = Auth().data().stickerSetsRef();
 
 	_stickersOrder = localOrder;
@@ -1608,18 +1668,18 @@ void ApiWrap::gotWebPages(ChannelData *channel, const MTPmessages_Messages &msgs
 	}
 
 	if (!v) return;
-	QMap<uint64, int32> msgsIds; // copied from feedMsgs
-	for (int32 i = 0, l = v->size(); i < l; ++i) {
-		const auto &msg(v->at(i));
-		switch (msg.type()) {
-		case mtpc_message: msgsIds.insert((uint64(uint32(msg.c_message().vid.v)) << 32) | uint64(i), i); break;
-		case mtpc_messageEmpty: msgsIds.insert((uint64(uint32(msg.c_messageEmpty().vid.v)) << 32) | uint64(i), i); break;
-		case mtpc_messageService: msgsIds.insert((uint64(uint32(msg.c_messageService().vid.v)) << 32) | uint64(i), i); break;
-		}
+
+	auto indices = base::flat_map<uint64, int>(); // copied from feedMsgs
+	for (auto i = 0, l = v->size(); i != l; ++i) {
+		const auto msgId = idFromMessage(v->at(i));
+		indices.emplace((uint64(uint32(msgId)) << 32) | uint64(i), i);
 	}
 
-	for_const (auto msgId, msgsIds) {
-		if (auto item = App::histories().addNewMessage(v->at(msgId), NewMessageExisting)) {
+	for (const auto [position, index] : indices) {
+		const auto item = App::histories().addNewMessage(
+			v->at(index),
+			NewMessageExisting);
+		if (item) {
 			item->setPendingInitDimensions();
 		}
 	}
@@ -1897,45 +1957,49 @@ void ApiWrap::applyUpdatesNoPtsCheck(const MTPUpdates &updates) {
 	case mtpc_updateShortMessage: {
 		auto &d = updates.c_updateShortMessage();
 		auto flags = mtpCastFlags(d.vflags.v) | MTPDmessage::Flag::f_from_id;
-		App::histories().addNewMessage(MTP_message(
-			MTP_flags(flags),
-			d.vid,
-			d.is_out() ? MTP_int(Auth().userId()) : d.vuser_id,
-			MTP_peerUser(d.is_out() ? d.vuser_id : MTP_int(Auth().userId())),
-			d.vfwd_from,
-			d.vvia_bot_id,
-			d.vreply_to_msg_id,
-			d.vdate,
-			d.vmessage,
-			MTP_messageMediaEmpty(),
-			MTPnullMarkup,
-			d.has_entities() ? d.ventities : MTPnullEntities,
-			MTPint(),
-			MTPint(),
-			MTPstring(),
-			MTPlong()), NewMessageUnread);
+		App::histories().addNewMessage(
+			MTP_message(
+				MTP_flags(flags),
+				d.vid,
+				d.is_out() ? MTP_int(Auth().userId()) : d.vuser_id,
+				MTP_peerUser(d.is_out() ? d.vuser_id : MTP_int(Auth().userId())),
+				d.vfwd_from,
+				d.vvia_bot_id,
+				d.vreply_to_msg_id,
+				d.vdate,
+				d.vmessage,
+				MTP_messageMediaEmpty(),
+				MTPnullMarkup,
+				d.has_entities() ? d.ventities : MTPnullEntities,
+				MTPint(),
+				MTPint(),
+				MTPstring(),
+				MTPlong()),
+			NewMessageUnread);
 	} break;
 
 	case mtpc_updateShortChatMessage: {
 		auto &d = updates.c_updateShortChatMessage();
 		auto flags = mtpCastFlags(d.vflags.v) | MTPDmessage::Flag::f_from_id;
-		App::histories().addNewMessage(MTP_message(
-			MTP_flags(flags),
-			d.vid,
-			d.vfrom_id,
-			MTP_peerChat(d.vchat_id),
-			d.vfwd_from,
-			d.vvia_bot_id,
-			d.vreply_to_msg_id,
-			d.vdate,
-			d.vmessage,
-			MTP_messageMediaEmpty(),
-			MTPnullMarkup,
-			d.has_entities() ? d.ventities : MTPnullEntities,
-			MTPint(),
-			MTPint(),
-			MTPstring(),
-			MTPlong()), NewMessageUnread);
+		App::histories().addNewMessage(
+			MTP_message(
+				MTP_flags(flags),
+				d.vid,
+				d.vfrom_id,
+				MTP_peerChat(d.vchat_id),
+				d.vfwd_from,
+				d.vvia_bot_id,
+				d.vreply_to_msg_id,
+				d.vdate,
+				d.vmessage,
+				MTP_messageMediaEmpty(),
+				MTPnullMarkup,
+				d.has_entities() ? d.ventities : MTPnullEntities,
+				MTPint(),
+				MTPint(),
+				MTPstring(),
+				MTPlong()),
+			NewMessageUnread);
 	} break;
 
 	case mtpc_updateShortSentMessage: {
@@ -2455,6 +2519,7 @@ void ApiWrap::forwardMessages(
 	}
 
 	auto forwardFrom = items.front()->history()->peer;
+	auto currentGroupId = items.front()->groupId();
 	auto ids = QVector<MTPint>();
 	auto randomIds = QVector<MTPlong>();
 
@@ -2462,8 +2527,12 @@ void ApiWrap::forwardMessages(
 		if (shared) {
 			++shared->requestsLeft;
 		}
+		const auto finalFlags = sendFlags
+			| (currentGroupId == MessageGroupId()
+				? MTPmessages_ForwardMessages::Flag(0)
+				: MTPmessages_ForwardMessages::Flag::f_grouped);
 		history->sendRequestId = request(MTPmessages_ForwardMessages(
-			MTP_flags(sendFlags),
+			MTP_flags(finalFlags),
 			forwardFrom->input,
 			MTP_vector<MTPint>(ids),
 			MTP_vector<MTPlong>(randomIds),
@@ -2508,9 +2577,13 @@ void ApiWrap::forwardMessages(
 				App::historyRegRandom(randomId, newId);
 			}
 		}
-		if (forwardFrom != item->history()->peer) {
+		const auto newFrom = item->history()->peer;
+		const auto newGroupId = item->groupId();
+		if (forwardFrom != newFrom
+			|| currentGroupId != newGroupId) {
 			sendAccumulated();
-			forwardFrom = item->history()->peer;
+			forwardFrom = newFrom;
+			currentGroupId = newGroupId;
 		}
 		ids.push_back(MTP_int(item->id));
 		randomIds.push_back(MTP_long(randomId));
@@ -2556,17 +2629,12 @@ void ApiWrap::sendSharedContact(
 	const auto history = options.history;
 	const auto peer = history->peer;
 
-	const auto randomId = rand_value<uint64>();
 	const auto newId = FullMsgId(history->channelId(), clientMsgId());
 	const auto channelPost = peer->isChannel() && !peer->isMegagroup();
-	const auto silentPost = channelPost && peer->notifySilentPosts();
 
 	auto flags = NewMessageFlags(peer) | MTPDmessage::Flag::f_media;
-
-	auto sendFlags = MTPmessages_SendMedia::Flags(0);
 	if (options.replyTo) {
 		flags |= MTPDmessage::Flag::f_reply_to_msg_id;
-		sendFlags |= MTPmessages_SendMedia::Flag::f_reply_to_msg_id;
 	}
 	if (channelPost) {
 		flags |= MTPDmessage::Flag::f_views;
@@ -2577,14 +2645,11 @@ void ApiWrap::sendSharedContact(
 	} else {
 		flags |= MTPDmessage::Flag::f_from_id;
 	}
-	if (silentPost) {
-		sendFlags |= MTPmessages_SendMedia::Flag::f_silent;
-	}
 	const auto messageFromId = channelPost ? 0 : Auth().userId();
 	const auto messagePostAuthor = channelPost
 		? (Auth().user()->firstName + ' ' + Auth().user()->lastName)
 		: QString();
-	history->addNewMessage(
+	const auto item = history->addNewMessage(
 		MTP_message(
 			MTP_flags(flags),
 			MTP_int(newId.msg),
@@ -2608,35 +2673,358 @@ void ApiWrap::sendSharedContact(
 			MTPlong()),
 		NewMessageUnread);
 
+	const auto media = MTP_inputMediaContact(
+		MTP_string(phone),
+		MTP_string(firstName),
+		MTP_string(lastName));
+	sendMedia(item, media, peer->notifySilentPosts());
+}
+
+void ApiWrap::sendVoiceMessage(
+		QByteArray result,
+		VoiceWaveform waveform,
+		int duration,
+		const SendOptions &options) {
+	const auto caption = QString();
+	const auto to = FileLoadTaskOptions(options);
+	_fileLoader->addTask(std::make_unique<FileLoadTask>(
+		result,
+		duration,
+		waveform,
+		to,
+		caption));
+}
+
+void ApiWrap::sendFiles(
+		Storage::PreparedList &&list,
+		SendMediaType type,
+		QString caption,
+		std::shared_ptr<SendingAlbum> album,
+		const SendOptions &options) {
+	if (list.files.size() > 1 && !caption.isEmpty()) {
+		auto message = MainWidget::MessageToSend(options.history);
+		message.textWithTags = { caption, TextWithTags::Tags() };
+		message.replyTo = options.replyTo;
+		message.clearDraft = false;
+		App::main()->sendMessage(message);
+		caption = QString();
+	}
+
+	const auto to = FileLoadTaskOptions(options);
+	if (album) {
+		album->silent = to.silent;
+	}
+	auto tasks = std::vector<std::unique_ptr<Task>>();
+	tasks.reserve(list.files.size());
+	for (auto &file : list.files) {
+		if (album) {
+			switch (file.type) {
+			case Storage::PreparedFile::AlbumType::Photo:
+				type = SendMediaType::Photo;
+				break;
+			case Storage::PreparedFile::AlbumType::Video:
+				type = SendMediaType::File;
+				break;
+			default: Unexpected("AlbumType in uploadFilesAfterConfirmation");
+			}
+		}
+		tasks.push_back(std::make_unique<FileLoadTask>(
+			file.path,
+			file.content,
+			std::move(file.information),
+			type,
+			to,
+			caption,
+			album));
+	}
+	if (album) {
+		_sendingAlbums.emplace(album->groupId, album);
+		album->items.reserve(tasks.size());
+		for (const auto &task : tasks) {
+			album->items.push_back(SendingAlbum::Item(task->id()));
+		}
+	}
+	_fileLoader->addTasks(std::move(tasks));
+}
+
+void ApiWrap::sendFile(
+		const QByteArray &fileContent,
+		SendMediaType type,
+		const SendOptions &options) {
+	auto to = FileLoadTaskOptions(options);
+	auto caption = QString();
+	_fileLoader->addTask(std::make_unique<FileLoadTask>(
+		QString(),
+		fileContent,
+		nullptr,
+		type,
+		to,
+		caption));
+}
+
+void ApiWrap::sendUploadedPhoto(
+		FullMsgId localId,
+		const MTPInputFile &file,
+		bool silent) {
+	if (const auto item = App::histItemById(localId)) {
+		const auto caption = item->getMedia()
+			? item->getMedia()->getCaption()
+			: TextWithEntities();
+		const auto media = MTP_inputMediaUploadedPhoto(
+			MTP_flags(0),
+			file,
+			MTP_string(caption.text),
+			MTPVector<MTPInputDocument>(),
+			MTP_int(0));
+		if (const auto groupId = item->groupId()) {
+			uploadAlbumMedia(item, groupId, media);
+		} else {
+			sendMedia(item, media, silent);
+		}
+	}
+}
+
+void ApiWrap::sendUploadedDocument(
+		FullMsgId localId,
+		const MTPInputFile &file,
+		const base::optional<MTPInputFile> &thumb,
+		bool silent) {
+	if (const auto item = App::histItemById(localId)) {
+		auto media = item->getMedia();
+		if (auto document = media ? media->getDocument() : nullptr) {
+			const auto caption = media->getCaption();
+			const auto groupId = item->groupId();
+			const auto flags = MTPDinputMediaUploadedDocument::Flags(0)
+				| (thumb
+					? MTPDinputMediaUploadedDocument::Flag::f_thumb
+					: MTPDinputMediaUploadedDocument::Flag(0))
+				| (groupId
+					? MTPDinputMediaUploadedDocument::Flag::f_nosound_video
+					: MTPDinputMediaUploadedDocument::Flag(0));
+			const auto media = MTP_inputMediaUploadedDocument(
+				MTP_flags(flags),
+				file,
+				thumb ? *thumb : MTPInputFile(),
+				MTP_string(document->mimeString()),
+				ComposeSendingDocumentAttributes(document),
+				MTP_string(caption.text),
+				MTPVector<MTPInputDocument>(),
+				MTP_int(0));
+			if (groupId) {
+				uploadAlbumMedia(item, groupId, media);
+			} else {
+				sendMedia(item, media, silent);
+			}
+		}
+	}
+}
+
+void ApiWrap::cancelLocalItem(not_null<HistoryItem*> item) {
+	Expects(!IsServerMsgId(item->id));
+
+	if (const auto groupId = item->groupId()) {
+		sendAlbumWithCancelled(item, groupId);
+	}
+}
+
+void ApiWrap::uploadAlbumMedia(
+		not_null<HistoryItem*> item,
+		const MessageGroupId &groupId,
+		const MTPInputMedia &media) {
+	const auto localId = item->fullId();
+	const auto failed = [this] {
+
+	};
+	request(MTPmessages_UploadMedia(
+		item->history()->peer->input,
+		media
+	)).done([=](const MTPMessageMedia &result) {
+		const auto item = App::histItemById(localId);
+		if (!item) {
+			failed();
+		}
+		if (const auto media = item->getMedia()) {
+			if (const auto photo = media->getPhoto()) {
+				photo->setWaitingForAlbum();
+			} else if (const auto document = media->getDocument()) {
+				document->setWaitingForAlbum();
+			}
+		}
+
+		switch (result.type()) {
+		case mtpc_messageMediaPhoto: {
+			const auto &data = result.c_messageMediaPhoto();
+			if (data.vphoto.type() != mtpc_photo) {
+				failed();
+				return;
+			}
+			const auto &photo = data.vphoto.c_photo();
+			const auto flags = MTPDinputMediaPhoto::Flags(0)
+				| (data.has_ttl_seconds()
+					? MTPDinputMediaPhoto::Flag::f_ttl_seconds
+					: MTPDinputMediaPhoto::Flag(0));
+			const auto media = MTP_inputMediaPhoto(
+				MTP_flags(flags),
+				MTP_inputPhoto(photo.vid, photo.vaccess_hash),
+				data.has_caption() ? data.vcaption : MTP_string(QString()),
+				data.has_ttl_seconds() ? data.vttl_seconds : MTPint());
+			sendAlbumWithUploaded(item, groupId, media);
+		} break;
+
+		case mtpc_messageMediaDocument: {
+			const auto &data = result.c_messageMediaDocument();
+			if (data.vdocument.type() != mtpc_document) {
+				failed();
+				return;
+			}
+			const auto &document = data.vdocument.c_document();
+			const auto flags = MTPDinputMediaDocument::Flags(0)
+				| (data.has_ttl_seconds()
+					? MTPDinputMediaDocument::Flag::f_ttl_seconds
+					: MTPDinputMediaDocument::Flag(0));
+			const auto media = MTP_inputMediaDocument(
+				MTP_flags(flags),
+				MTP_inputDocument(document.vid, document.vaccess_hash),
+				data.has_caption() ? data.vcaption : MTP_string(QString()),
+				data.has_ttl_seconds() ? data.vttl_seconds : MTPint());
+			sendAlbumWithUploaded(item, groupId, media);
+		} break;
+		}
+	}).fail([=](const RPCError &error) {
+		failed();
+	}).send();
+}
+
+void ApiWrap::sendMedia(
+		not_null<HistoryItem*> item,
+		const MTPInputMedia &media,
+		bool silent) {
+	const auto randomId = rand_value<uint64>();
+	App::historyRegRandom(randomId, item->fullId());
+
+	sendMediaWithRandomId(item, media, silent, randomId);
+}
+
+void ApiWrap::sendMediaWithRandomId(
+		not_null<HistoryItem*> item,
+		const MTPInputMedia &media,
+		bool silent,
+		uint64 randomId) {
+	const auto history = item->history();
+	const auto replyTo = item->replyToId();
+	const auto flags = MTPmessages_SendMedia::Flags(0)
+		| (replyTo
+			? MTPmessages_SendMedia::Flag::f_reply_to_msg_id
+			: MTPmessages_SendMedia::Flag(0))
+		| (IsSilentPost(item, silent)
+			? MTPmessages_SendMedia::Flag::f_silent
+			: MTPmessages_SendMedia::Flag(0));
 	history->sendRequestId = request(MTPmessages_SendMedia(
-		MTP_flags(sendFlags),
-		peer->input,
-		MTP_int(options.replyTo),
-		MTP_inputMediaContact(
-			MTP_string(phone),
-			MTP_string(firstName),
-			MTP_string(lastName)),
+		MTP_flags(flags),
+		history->peer->input,
+		MTP_int(replyTo),
+		media,
 		MTP_long(randomId),
 		MTPnullMarkup
-	)).done([=](const MTPUpdates &result) {
-		applyUpdates(result);
-	}).fail([](const RPCError &error) {
-		if (error.type() == qstr("PEER_FLOOD")) {
-			Ui::show(Box<InformBox>(
-				PeerFloodErrorText(PeerFloodType::Send)));
-		} else if (error.type() == qstr("USER_BANNED_IN_CHANNEL")) {
-			const auto link = textcmdLink(
-				Messenger::Instance().createInternalLinkFull(qsl("spambot")),
-				lang(lng_cant_more_info));
-			Ui::show(Box<InformBox>(lng_error_public_groups_denied(
-				lt_more_info,
-				link)));
-		}
-	}).afterRequest(
-		history->sendRequestId
+	)).done([=](const MTPUpdates &result) { applyUpdates(result);
+	}).fail([=](const RPCError &error) { sendMessageFail(error);
+	}).afterRequest(history->sendRequestId
 	).send();
+}
 
-	App::historyRegRandom(randomId, newId);
+void ApiWrap::sendAlbumWithUploaded(
+		not_null<HistoryItem*> item,
+		const MessageGroupId &groupId,
+		const MTPInputMedia &media) {
+	const auto localId = item->fullId();
+	const auto randomId = rand_value<uint64>();
+	App::historyRegRandom(randomId, localId);
+
+	const auto albumIt = _sendingAlbums.find(groupId.raw());
+	Assert(albumIt != _sendingAlbums.end());
+	const auto &album = albumIt->second;
+
+	const auto proj = [](const SendingAlbum::Item &item) {
+		return item.msgId;
+	};
+	const auto itemIt = ranges::find(album->items, localId, proj);
+	Assert(itemIt != album->items.end());
+	Assert(!itemIt->media);
+	itemIt->media = MTP_inputSingleMedia(media, MTP_long(randomId));
+
+	sendAlbumIfReady(album.get());
+}
+
+void ApiWrap::sendAlbumWithCancelled(
+		not_null<HistoryItem*> item,
+		const MessageGroupId &groupId) {
+	const auto localId = item->fullId();
+	const auto albumIt = _sendingAlbums.find(groupId.raw());
+	Assert(albumIt != _sendingAlbums.end());
+	const auto &album = albumIt->second;
+
+	const auto proj = [](const SendingAlbum::Item &item) {
+		return item.msgId;
+	};
+	const auto itemIt = ranges::find(album->items, localId, proj);
+	Assert(itemIt != album->items.end());
+	album->items.erase(itemIt);
+
+	sendAlbumIfReady(album.get());
+}
+
+void ApiWrap::sendAlbumIfReady(not_null<SendingAlbum*> album) {
+	const auto groupId = album->groupId;
+	if (album->items.empty()) {
+		_sendingAlbums.remove(groupId);
+		return;
+	}
+	auto sample = (HistoryItem*)nullptr;
+	auto medias = QVector<MTPInputSingleMedia>();
+	medias.reserve(album->items.size());
+	for (const auto &item : album->items) {
+		if (!item.media) {
+			return;
+		} else if (!sample) {
+			sample = App::histItemById(item.msgId);
+		}
+		medias.push_back(*item.media);
+	}
+	if (!sample) {
+		_sendingAlbums.remove(groupId);
+		return;
+	} else if (medias.size() < 2) {
+		const auto &single = medias.front().c_inputSingleMedia();
+		sendMediaWithRandomId(
+			sample,
+			single.vmedia,
+			album->silent,
+			single.vrandom_id.v);
+		_sendingAlbums.remove(groupId);
+		return;
+	}
+	const auto history = sample->history();
+	const auto replyTo = sample->replyToId();
+	const auto flags = MTPmessages_SendMultiMedia::Flags(0)
+		| (replyTo
+			? MTPmessages_SendMultiMedia::Flag::f_reply_to_msg_id
+			: MTPmessages_SendMultiMedia::Flag(0))
+		| (IsSilentPost(sample, album->silent)
+			? MTPmessages_SendMultiMedia::Flag::f_silent
+			: MTPmessages_SendMultiMedia::Flag(0));
+	history->sendRequestId = request(MTPmessages_SendMultiMedia(
+		MTP_flags(flags),
+		history->peer->input,
+		MTP_int(replyTo),
+		MTP_vector<MTPInputSingleMedia>(medias)
+	)).done([=](const MTPUpdates &result) {
+		_sendingAlbums.remove(groupId);
+		applyUpdates(result);
+	}).fail([=](const RPCError &error) {
+		_sendingAlbums.remove(groupId);
+		sendMessageFail(error);
+	}).afterRequest(history->sendRequestId
+	).send();
 }
 
 void ApiWrap::readServerHistory(not_null<History*> history) {

Telegram/SourceFiles/apiwrap.h

@@ -28,14 +28,18 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "base/flat_set.h"
 #include "chat_helpers/stickers.h"
 
+class TaskQueue;
 class AuthSession;
+enum class SparseIdsLoadDirection;
+struct MessageGroupId;
+struct SendingAlbum;
+enum class SendMediaType;
 
 namespace Storage {
 enum class SharedMediaType : char;
+struct PreparedList;
 } // namespace Storage
 
-enum class SparseIdsLoadDirection;
-
 namespace Api {
 
 inline const MTPVector<MTPChat> *getChatsFromMessagesChats(const MTPmessages_Chats &chats) {
@@ -52,7 +56,6 @@ class ApiWrap : private MTP::Sender, private base::Subscriber {
 public:
 	ApiWrap(not_null<AuthSession*> session);
 
-	void start();
 	void applyUpdates(const MTPUpdates &updates, uint64 sentMessageRandomId = 0);
 
 	using RequestMessageDataCallback = base::lambda<void(ChannelData*, MsgId)>;
@@ -66,6 +69,10 @@ public:
 	void requestAdmins(not_null<ChannelData*> channel);
 	void requestParticipantsCountDelayed(not_null<ChannelData*> channel);
 
+	void requestChangelog(
+		const QString &sinceVersion,
+		base::lambda<void(const MTPUpdates &result)> callback);
+
 	void requestChannelMembersForAdd(
 		not_null<ChannelData*> channel,
 		base::lambda<void(const MTPchannels_ChannelParticipants&)> callback);
@@ -73,8 +80,14 @@ public:
 	void processFullPeer(UserData *user, const MTPUserFull &result);
 
 	void requestSelfParticipant(ChannelData *channel);
-	void kickParticipant(PeerData *peer, UserData *user, const MTPChannelBannedRights &currentRights);
-	void unblockParticipant(PeerData *peer, UserData *user);
+	void kickParticipant(not_null<ChatData*> chat, not_null<UserData*> user);
+	void kickParticipant(
+		not_null<ChannelData*> channel,
+		not_null<UserData*> user,
+		const MTPChannelBannedRights &currentRights);
+	void unblockParticipant(
+		not_null<ChannelData*> channel,
+		not_null<UserData*> user);
 
 	void requestWebPageDelayed(WebPageData *page);
 	void clearWebPageRequest(WebPageData *page);
@@ -186,6 +199,33 @@ public:
 	void readServerHistory(not_null<History*> history);
 	void readServerHistoryForce(not_null<History*> history);
 
+	void sendVoiceMessage(
+		QByteArray result,
+		VoiceWaveform waveform,
+		int duration,
+		const SendOptions &options);
+	void sendFiles(
+		Storage::PreparedList &&list,
+		SendMediaType type,
+		QString caption,
+		std::shared_ptr<SendingAlbum> album,
+		const SendOptions &options);
+	void sendFile(
+		const QByteArray &fileContent,
+		SendMediaType type,
+		const SendOptions &options);
+
+	void sendUploadedPhoto(
+		FullMsgId localId,
+		const MTPInputFile &file,
+		bool silent);
+	void sendUploadedDocument(
+		FullMsgId localId,
+		const MTPInputFile &file,
+		const base::optional<MTPInputFile> &thumb,
+		bool silent);
+	void cancelLocalItem(not_null<HistoryItem*> item);
+
 	~ApiWrap();
 
 private:
@@ -197,8 +237,6 @@ private:
 	using MessageDataRequests = QMap<MsgId, MessageDataRequest>;
 	using SharedMediaType = Storage::SharedMediaType;
 
-	void requestAppChangelogs();
-	void addLocalChangelogs(int oldAppVersion);
 	void updatesReceived(const MTPUpdates &updates);
 	void checkQuitPreventFinished();
 
@@ -283,9 +321,30 @@ private:
 	void applyAffectedMessages(
 		not_null<PeerData*> peer,
 		const MTPmessages_AffectedMessages &result);
+	void sendMessageFail(const RPCError &error);
+	void uploadAlbumMedia(
+		not_null<HistoryItem*> item,
+		const MessageGroupId &groupId,
+		const MTPInputMedia &media);
+	void sendAlbumWithUploaded(
+		not_null<HistoryItem*> item,
+		const MessageGroupId &groupId,
+		const MTPInputMedia &media);
+	void sendAlbumWithCancelled(
+		not_null<HistoryItem*> item,
+		const MessageGroupId &groupId);
+	void sendAlbumIfReady(not_null<SendingAlbum*> album);
+	void sendMedia(
+		not_null<HistoryItem*> item,
+		const MTPInputMedia &media,
+		bool silent);
+	void sendMediaWithRandomId(
+		not_null<HistoryItem*> item,
+		const MTPInputMedia &media,
+		bool silent,
+		uint64 randomId);
 
 	not_null<AuthSession*> _session;
-	mtpRequestId _changelogSubscription = 0;
 
 	MessageDataRequests _messageDataRequests;
 	QMap<ChannelData*, MessageDataRequests> _channelMessageDataRequests;
@@ -304,9 +363,10 @@ private:
 	mtpRequestId _channelMembersForAddRequestId = 0;
 	base::lambda<void(const MTPchannels_ChannelParticipants&)> _channelMembersForAddCallback;
 
-	typedef QPair<PeerData*, UserData*> KickRequest;
-	typedef QMap<KickRequest, mtpRequestId> KickRequests;
-	KickRequests _kickRequests;
+	using KickRequest = std::pair<
+		not_null<ChannelData*>,
+		not_null<UserData*>>;
+	base::flat_map<KickRequest, mtpRequestId> _kickRequests;
 
 	QMap<ChannelData*, mtpRequestId> _selfParticipantRequests;
 
@@ -375,6 +435,8 @@ private:
 	};
 	base::flat_map<not_null<PeerData*>, ReadRequest> _readRequests;
 	base::flat_map<not_null<PeerData*>, MsgId> _readRequestsPending;
+	std::unique_ptr<TaskQueue> _fileLoader;
+	base::flat_map<uint64, std::shared_ptr<SendingAlbum>> _sendingAlbums;
 
 	base::Observable<PeerData*> _fullPeerUpdated;
 

Telegram/SourceFiles/app.cpp

@@ -34,6 +34,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "history/history_service_layout.h"
 #include "history/history_location_manager.h"
 #include "history/history_media_types.h"
+#include "history/history_item_components.h"
 #include "media/media_audio.h"
 #include "inline_bots/inline_bot_layout_item.h"
 #include "messenger.h"
@@ -46,6 +47,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "numbers.h"
 #include "observer_peer.h"
 #include "auth_session.h"
+#include "core/crash_reports.h"
 #include "storage/storage_facade.h"
 #include "storage/storage_shared_media.h"
 #include "window/themes/window_theme.h"
@@ -127,7 +129,8 @@ namespace {
 	LastPhotosList lastPhotos;
 	using LastPhotosMap = QHash<PhotoData*, LastPhotosList::iterator>;
 	LastPhotosMap lastPhotosMap;
-}
+
+} // namespace
 
 namespace App {
 
@@ -218,117 +221,6 @@ namespace {
 		}
 	}
 
-	TimeId onlineForSort(UserData *user, TimeId now) {
-		if (isServiceUser(user->id) || user->botInfo) {
-			return -1;
-		}
-		TimeId online = user->onlineTill;
-		if (online <= 0) {
-			switch (online) {
-			case 0:
-			case -1: return online;
-
-			case -2: {
-				QDate yesterday(date(now).date());
-				return int32(QDateTime(yesterday.addDays(-3)).toTime_t()) + (unixtime() - myunixtime());
-			} break;
-
-			case -3: {
-				QDate weekago(date(now).date());
-				return int32(QDateTime(weekago.addDays(-7)).toTime_t()) + (unixtime() - myunixtime());
-			} break;
-
-			case -4: {
-				QDate monthago(date(now).date());
-				return int32(QDateTime(monthago.addDays(-30)).toTime_t()) + (unixtime() - myunixtime());
-			} break;
-			}
-			return -online;
-		}
-		return online;
-	}
-
-	int32 onlineWillChangeIn(UserData *user, TimeId now) {
-		if (isServiceUser(user->id) || user->botInfo) {
-			return 86400;
-		}
-		return onlineWillChangeIn(user->onlineTill, now);
-	}
-
-	int32 onlineWillChangeIn(TimeId online, TimeId now) {
-		if (online <= 0) {
-			if (-online > now) return std::max(-online - now, 86400);
-            return 86400;
-        }
-		if (online > now) {
-			return std::max(online - now, 86400);
-		}
-		int32 minutes = (now - online) / 60;
-		if (minutes < 60) {
-			return (minutes + 1) * 60 - (now - online);
-		}
-		int32 hours = (now - online) / 3600;
-		if (hours < 12) {
-			return (hours + 1) * 3600 - (now - online);
-		}
-		QDateTime dNow(date(now)), dTomorrow(dNow.date().addDays(1));
-		return std::max(dNow.secsTo(dTomorrow), 86400LL);
-	}
-
-	QString onlineText(UserData *user, TimeId now, bool precise) {
-		if (isNotificationsUser(user->id)) {
-			return lang(lng_status_service_notifications);
-		} else if (user->botInfo) {
-			return lang(lng_status_bot);
-		} else if (isServiceUser(user->id)) {
-			return lang(lng_status_support);
-		}
-		return onlineText(user->onlineTill, now, precise);
-	}
-
-	QString onlineText(TimeId online, TimeId now, bool precise) {
-		if (online <= 0) {
-			switch (online) {
-			case 0:
-            case -1: return lang(lng_status_offline);
-			case -2: return lang(lng_status_recently);
-			case -3: return lang(lng_status_last_week);
-			case -4: return lang(lng_status_last_month);
-			}
-            return (-online > now) ? lang(lng_status_online) : lang(lng_status_recently);
-		}
-		if (online > now) {
-			return lang(lng_status_online);
-		}
-		QString when;
-		if (precise) {
-			QDateTime dOnline(date(online)), dNow(date(now));
-			if (dOnline.date() == dNow.date()) {
-				return lng_status_lastseen_today(lt_time, dOnline.time().toString(cTimeFormat()));
-			} else if (dOnline.date().addDays(1) == dNow.date()) {
-				return lng_status_lastseen_yesterday(lt_time, dOnline.time().toString(cTimeFormat()));
-			}
-			return lng_status_lastseen_date_time(lt_date, dOnline.date().toString(qsl("dd.MM.yy")), lt_time, dOnline.time().toString(cTimeFormat()));
-		}
-		int32 minutes = (now - online) / 60;
-		if (!minutes) {
-			return lang(lng_status_lastseen_now);
-		} else if (minutes < 60) {
-			return lng_status_lastseen_minutes(lt_count, minutes);
-		}
-		int32 hours = (now - online) / 3600;
-		if (hours < 12) {
-			return lng_status_lastseen_hours(lt_count, hours);
-		}
-		QDateTime dOnline(date(online)), dNow(date(now));
-		if (dOnline.date() == dNow.date()) {
-			return lng_status_lastseen_today(lt_time, dOnline.time().toString(cTimeFormat()));
-		} else if (dOnline.date().addDays(1) == dNow.date()) {
-			return lng_status_lastseen_yesterday(lt_time, dOnline.time().toString(cTimeFormat()));
-		}
-		return lng_status_lastseen_date(lt_date, dOnline.date().toString(qsl("dd.MM.yy")));
-	}
-
 	namespace {
 		// we should get a full restriction in "{fulltype}: {reason}" format and we
 		// need to find a "-all" tag in {fulltype}, otherwise ignore this restriction
@@ -353,27 +245,6 @@ namespace {
 		}
 	}
 
-	bool onlineColorUse(UserData *user, TimeId now) {
-		if (isServiceUser(user->id) || user->botInfo) {
-			return false;
-		}
-		return onlineColorUse(user->onlineTill, now);
-	}
-
-	bool onlineColorUse(TimeId online, TimeId now) {
-		if (online <= 0) {
-			switch (online) {
-			case 0:
-			case -1:
-			case -2:
-			case -3:
-			case -4: return false;
-			}
-			return (-online > now);
-		}
-		return (online > now);
-	}
-
 	UserData *feedUser(const MTPUser &user) {
 		UserData *data = nullptr;
 		bool wasContact = false, minimal = false;
@@ -472,7 +343,7 @@ namespace {
 				QString pname = (showPhoneChanged || phoneChanged || nameChanged) ? ((showPhone && !phone.isEmpty()) ? formatPhone(phone) : QString()) : data->nameOrPhone;
 
 				if (!minimal && d.is_self() && uname != data->username) {
-					SignalHandlers::setCrashAnnotation("Username", uname);
+					CrashReports::SetAnnotation("Username", uname);
 				}
 				data->setName(fname, lname, pname, uname);
 				if (d.has_photo()) {
@@ -648,26 +519,34 @@ namespace {
 			}
 		} break;
 		case mtpc_channel: {
-			auto &d = chat.c_channel();
+			const auto &d = chat.c_channel();
 
-			auto peerId = peerFromChannel(d.vid.v);
+			const auto peerId = peerFromChannel(d.vid.v);
 			minimal = d.is_min();
 			if (minimal) {
 				data = App::channelLoaded(peerId);
 				if (!data) {
-					return nullptr; // minimal is not loaded, need to make getDifference
+					// Can't apply minimal to a not loaded channel.
+					// Need to make getDifference.
+					return nullptr;
 				}
 			} else {
 				data = App::channel(peerId);
-				data->input = MTP_inputPeerChannel(d.vid, d.has_access_hash() ? d.vaccess_hash : MTP_long(0));
+				const auto accessHash = d.has_access_hash()
+					? d.vaccess_hash
+					: MTP_long(0);
+				data->input = MTP_inputPeerChannel(d.vid, accessHash);
 			}
 
-			auto cdata = data->asChannel();
-			auto wasInChannel = cdata->amIn();
-			auto canViewAdmins = cdata->canViewAdmins();
-			auto canViewMembers = cdata->canViewMembers();
-			auto canAddMembers = cdata->canAddMembers();
+			const auto cdata = data->asChannel();
+			const auto wasInChannel = cdata->amIn();
+			const auto canViewAdmins = cdata->canViewAdmins();
+			const auto canViewMembers = cdata->canViewMembers();
+			const auto canAddMembers = cdata->canAddMembers();
 
+			if (d.has_participants_count()) {
+				cdata->setMembersCount(d.vparticipants_count.v);
+			}
 			if (minimal) {
 				auto mask = 0
 					| MTPDchannel::Flag::f_broadcast
@@ -1033,26 +912,22 @@ namespace {
 		if (m.has_from_id() && peerId == Auth().userPeerId()) {
 			peerId = peerFromUser(m.vfrom_id);
 		}
-		if (auto existing = App::histItemById(peerToChannel(peerId), m.vid.v)) {
+		if (const auto existing = App::histItemById(peerToChannel(peerId), m.vid.v)) {
 			auto text = qs(m.vmessage);
-			auto entities = m.has_entities() ? TextUtilities::EntitiesFromMTP(m.ventities.v) : EntitiesInText();
+			auto entities = m.has_entities()
+				? TextUtilities::EntitiesFromMTP(m.ventities.v)
+				: EntitiesInText();
 			existing->setText({ text, entities });
 			existing->updateMedia(m.has_media() ? (&m.vmedia) : nullptr);
-			existing->updateReplyMarkup(m.has_reply_markup() ? (&m.vreply_markup) : nullptr);
+			existing->updateReplyMarkup(m.has_reply_markup()
+				? (&m.vreply_markup)
+				: nullptr);
 			existing->setViewsCount(m.has_views() ? m.vviews.v : -1);
-			existing->addToUnreadMentions(AddToUnreadMentionsMethod::New);
-			if (auto sharedMediaTypes = existing->sharedMediaTypes()) {
-				Auth().storage().add(Storage::SharedMediaAddNew(
-					peerId,
-					sharedMediaTypes,
-					existing->id));
-			}
-
+			existing->indexAsNewItem();
 			if (!existing->detached()) {
 				App::checkSavedGif(existing);
 				return true;
 			}
-
 			return false;
 		}
 		return false;
@@ -1104,29 +979,23 @@ namespace {
 	}
 
 	void feedMsgs(const QVector<MTPMessage> &msgs, NewMessageType type) {
-		QMap<uint64, int32> msgsIds;
-		for (int32 i = 0, l = msgs.size(); i < l; ++i) {
-			const auto &msg(msgs.at(i));
-			switch (msg.type()) {
-			case mtpc_message: {
-				const auto &d(msg.c_message());
-				bool needToAdd = true;
+		auto indices = base::flat_map<uint64, int>();
+		for (int i = 0, l = msgs.size(); i != l; ++i) {
+			const auto &msg = msgs[i];
+			if (msg.type() == mtpc_message) {
+				const auto &data = msg.c_message();
 				if (type == NewMessageUnread) { // new message, index my forwarded messages to links overview
-					if (checkEntitiesAndViewsUpdate(d)) { // already in blocks
+					if (checkEntitiesAndViewsUpdate(data)) { // already in blocks
 						LOG(("Skipping message, because it is already in blocks!"));
-						needToAdd = false;
+						continue;
 					}
 				}
-				if (needToAdd) {
-					msgsIds.insert((uint64(uint32(d.vid.v)) << 32) | uint64(i), i);
-				}
-			} break;
-			case mtpc_messageEmpty: msgsIds.insert((uint64(uint32(msg.c_messageEmpty().vid.v)) << 32) | uint64(i), i); break;
-			case mtpc_messageService: msgsIds.insert((uint64(uint32(msg.c_messageService().vid.v)) << 32) | uint64(i), i); break;
 			}
+			const auto msgId = idFromMessage(msg);
+			indices.emplace((uint64(uint32(msgId)) << 32) | uint64(i), i);
 		}
-		for (QMap<uint64, int32>::const_iterator i = msgsIds.cbegin(), e = msgsIds.cend(); i != e; ++i) {
-			histories().addNewMessage(msgs.at(i.value()), type);
+		for (const auto [position, index] : indices) {
+			histories().addNewMessage(msgs[index], type);
 		}
 	}
 
@@ -1514,22 +1383,29 @@ namespace {
 	}
 
 	PhotoData *photo(const PhotoId &photo) {
-		PhotosData::const_iterator i = ::photosData.constFind(photo);
+		auto i = ::photosData.constFind(photo);
 		if (i == ::photosData.cend()) {
 			i = ::photosData.insert(photo, new PhotoData(photo));
 		}
 		return i.value();
 	}
 
-	PhotoData *photoSet(const PhotoId &photo, PhotoData *convert, const uint64 &access, int32 date, const ImagePtr &thumb, const ImagePtr &medium, const ImagePtr &full) {
+	PhotoData *photoSet(
+			const PhotoId &photo,
+			PhotoData *convert,
+			const uint64 &access,
+			int32 date,
+			const ImagePtr &thumb,
+			const ImagePtr &medium,
+			const ImagePtr &full) {
 		if (convert) {
 			if (convert->id != photo) {
-				PhotosData::iterator i = ::photosData.find(convert->id);
+				const auto i = ::photosData.find(convert->id);
 				if (i != ::photosData.cend() && i.value() == convert) {
 					::photosData.erase(i);
 				}
 				convert->id = photo;
-				convert->uploadingData.reset();
+				convert->uploadingData = nullptr;
 			}
 			if (date) {
 				convert->access = access;
@@ -1539,9 +1415,9 @@ namespace {
 				updateImage(convert->full, full);
 			}
 		}
-		PhotosData::const_iterator i = ::photosData.constFind(photo);
+		const auto i = ::photosData.constFind(photo);
 		PhotoData *result;
-		LastPhotosMap::iterator inLastIter = lastPhotosMap.end();
+		auto inLastIter = lastPhotosMap.end();
 		if (i == ::photosData.cend()) {
 			if (convert) {
 				result = convert;
@@ -1575,27 +1451,39 @@ namespace {
 	}
 
 	DocumentData *document(const DocumentId &document) {
-		DocumentsData::const_iterator i = ::documentsData.constFind(document);
+		auto i = ::documentsData.constFind(document);
 		if (i == ::documentsData.cend()) {
 			i = ::documentsData.insert(document, DocumentData::create(document));
 		}
 		return i.value();
 	}
 
-	DocumentData *documentSet(const DocumentId &document, DocumentData *convert, const uint64 &access, int32 version, int32 date, const QVector<MTPDocumentAttribute> &attributes, const QString &mime, const ImagePtr &thumb, int32 dc, int32 size, const StorageImageLocation &thumbLocation) {
+	DocumentData *documentSet(
+			const DocumentId &document,
+			DocumentData *convert,
+			const uint64 &access,
+			int32 version,
+			int32 date,
+			const QVector<MTPDocumentAttribute> &attributes,
+			const QString &mime,
+			const ImagePtr &thumb,
+			int32 dc,
+			int32 size,
+			const StorageImageLocation &thumbLocation) {
 		bool versionChanged = false;
 		bool sentSticker = false;
 		if (convert) {
-			MediaKey oldKey = convert->mediaKey();
-			bool idChanged = (convert->id != document);
+			const auto oldKey = convert->mediaKey();
+			const auto idChanged = (convert->id != document);
 			if (idChanged) {
-				DocumentsData::iterator i = ::documentsData.find(convert->id);
+				const auto i = ::documentsData.find(convert->id);
 				if (i != ::documentsData.cend() && i.value() == convert) {
 					::documentsData.erase(i);
 				}
 
 				convert->id = document;
 				convert->status = FileReady;
+				convert->uploadingData = nullptr;
 				sentSticker = (convert->sticker() != 0);
 			}
 			if (date) {
@@ -1613,7 +1501,7 @@ namespace {
 					convert->sticker()->loc = thumbLocation;
 				}
 
-				MediaKey newKey = convert->mediaKey();
+				const auto newKey = convert->mediaKey();
 				if (idChanged) {
 					if (convert->isVoiceMessage()) {
 						Local::copyAudio(oldKey, newKey);
@@ -1627,7 +1515,7 @@ namespace {
 				Local::writeSavedGifs();
 			}
 		}
-		DocumentsData::const_iterator i = ::documentsData.constFind(document);
+		const auto i = ::documentsData.constFind(document);
 		DocumentData *result;
 		if (i == ::documentsData.cend()) {
 			if (convert) {
@@ -1704,10 +1592,23 @@ namespace {
 		return i.value();
 	}
 
-	WebPageData *webPageSet(const WebPageId &webPage, WebPageData *convert, const QString &type, const QString &url, const QString &displayUrl, const QString &siteName, const QString &title, const TextWithEntities &description, PhotoData *photo, DocumentData *document, int32 duration, const QString &author, int32 pendingTill) {
+	WebPageData *webPageSet(
+			const WebPageId &webPage,
+			WebPageData *convert,
+			const QString &type,
+			const QString &url,
+			const QString &displayUrl,
+			const QString &siteName,
+			const QString &title,
+			const TextWithEntities &description,
+			PhotoData *photo,
+			DocumentData *document,
+			int32 duration,
+			const QString &author,
+			int32 pendingTill) {
 		if (convert) {
 			if (convert->id != webPage) {
-				auto i = webPagesData.find(convert->id);
+				const auto i = webPagesData.find(convert->id);
 				if (i != webPagesData.cend() && i.value() == convert) {
 					webPagesData.erase(i);
 				}
@@ -1731,7 +1632,7 @@ namespace {
 				if (App::main()) App::main()->webPageUpdated(convert);
 			}
 		}
-		auto i = webPagesData.constFind(webPage);
+		const auto i = webPagesData.constFind(webPage);
 		WebPageData *result;
 		if (i == webPagesData.cend()) {
 			if (convert) {
@@ -2122,15 +2023,6 @@ namespace {
 		}
 	}
 
-	int msgRadius() {
-		static int MsgRadius = ([]() {
-			return st::historyMessageRadius;
-			auto minMsgHeight = (st::msgPadding.top() + st::msgFont->height + st::msgPadding.bottom());
-			return minMsgHeight / 2;
-		})();
-		return MsgRadius;
-	}
-
 	void createMaskCorners() {
 		QImage mask[4];
 		prepareCorners(SmallMaskCorners, st::buttonRadius, QColor(255, 255, 255), nullptr, mask);
@@ -2138,7 +2030,7 @@ namespace {
 			::cornersMaskSmall[i] = mask[i].convertToFormat(QImage::Format_ARGB32_Premultiplied);
 			::cornersMaskSmall[i].setDevicePixelRatio(cRetinaFactor());
 		}
-		prepareCorners(LargeMaskCorners, msgRadius(), QColor(255, 255, 255), nullptr, mask);
+		prepareCorners(LargeMaskCorners, st::historyMessageRadius, QColor(255, 255, 255), nullptr, mask);
 		for (int i = 0; i < 4; ++i) {
 			::cornersMaskLarge[i] = mask[i].convertToFormat(QImage::Format_ARGB32_Premultiplied);
 			::cornersMaskLarge[i].setDevicePixelRatio(cRetinaFactor());
@@ -2152,12 +2044,12 @@ namespace {
 		prepareCorners(StickerCorners, st::dateRadius, st::msgServiceBg);
 		prepareCorners(StickerSelectedCorners, st::dateRadius, st::msgServiceBgSelected);
 		prepareCorners(SelectedOverlaySmallCorners, st::buttonRadius, st::msgSelectOverlay);
-		prepareCorners(SelectedOverlayLargeCorners, msgRadius(), st::msgSelectOverlay);
+		prepareCorners(SelectedOverlayLargeCorners, st::historyMessageRadius, st::msgSelectOverlay);
 		prepareCorners(DateCorners, st::dateRadius, st::msgDateImgBg);
 		prepareCorners(DateSelectedCorners, st::dateRadius, st::msgDateImgBgSelected);
-		prepareCorners(InShadowCorners, msgRadius(), st::msgInShadow);
-		prepareCorners(InSelectedShadowCorners, msgRadius(), st::msgInShadowSelected);
-		prepareCorners(ForwardCorners, msgRadius(), st::historyForwardChooseBg);
+		prepareCorners(InShadowCorners, st::historyMessageRadius, st::msgInShadow);
+		prepareCorners(InSelectedShadowCorners, st::historyMessageRadius, st::msgInShadowSelected);
+		prepareCorners(ForwardCorners, st::historyMessageRadius, st::historyForwardChooseBg);
 		prepareCorners(MediaviewSaveCorners, st::mediaviewControllerRadius, st::mediaviewSaveMsgBg);
 		prepareCorners(EmojiHoverCorners, st::buttonRadius, st::emojiPanHover);
 		prepareCorners(StickerHoverCorners, st::buttonRadius, st::emojiPanHover);
@@ -2169,10 +2061,10 @@ namespace {
 		prepareCorners(Doc3Corners, st::buttonRadius, st::msgFile3Bg);
 		prepareCorners(Doc4Corners, st::buttonRadius, st::msgFile4Bg);
 
-		prepareCorners(MessageInCorners, msgRadius(), st::msgInBg, &st::msgInShadow);
-		prepareCorners(MessageInSelectedCorners, msgRadius(), st::msgInBgSelected, &st::msgInShadowSelected);
-		prepareCorners(MessageOutCorners, msgRadius(), st::msgOutBg, &st::msgOutShadow);
-		prepareCorners(MessageOutSelectedCorners, msgRadius(), st::msgOutBgSelected, &st::msgOutShadowSelected);
+		prepareCorners(MessageInCorners, st::historyMessageRadius, st::msgInBg, &st::msgInShadow);
+		prepareCorners(MessageInSelectedCorners, st::historyMessageRadius, st::msgInBgSelected, &st::msgInShadowSelected);
+		prepareCorners(MessageOutCorners, st::historyMessageRadius, st::msgOutBg, &st::msgOutShadow);
+		prepareCorners(MessageOutSelectedCorners, st::historyMessageRadius, st::msgOutBgSelected, &st::msgOutShadowSelected);
 	}
 
 	void createCorners() {
@@ -2647,42 +2539,46 @@ namespace {
 #endif // !TDESKTOP_DISABLE_NETWORK_PROXY
 	}
 
-	void complexAdjustRect(ImageRoundCorners corners, QRect &rect, RectParts &parts) {
-		if (corners & ImageRoundCorner::TopLeft) {
-			if (!(corners & ImageRoundCorner::BottomLeft)) {
-				parts = RectPart::NoTopBottom | RectPart::FullTop;
-				rect.setHeight(rect.height() + msgRadius());
+	void rectWithCorners(Painter &p, QRect rect, const style::color &bg, RoundCorners index, RectParts corners) {
+		auto parts = RectPart::Top
+			| RectPart::NoTopBottom
+			| RectPart::Bottom
+			| corners;
+		roundRect(p, rect, bg, index, nullptr, parts);
+		if ((corners & RectPart::AllCorners) != RectPart::AllCorners) {
+			const auto size = ::corners[index].p[0].width() / cIntRetinaFactor();
+			if (!(corners & RectPart::TopLeft)) {
+				p.fillRect(rect.x(), rect.y(), size, size, bg);
+			}
+			if (!(corners & RectPart::TopRight)) {
+				p.fillRect(rect.x() + rect.width() - size, rect.y(), size, size, bg);
+			}
+			if (!(corners & RectPart::BottomLeft)) {
+				p.fillRect(rect.x(), rect.y() + rect.height() - size, size, size, bg);
+			}
+			if (!(corners & RectPart::BottomRight)) {
+				p.fillRect(rect.x() + rect.width() - size, rect.y() + rect.height() - size, size, size, bg);
 			}
-		} else if (corners & ImageRoundCorner::BottomLeft) {
-			parts = RectPart::NoTopBottom | RectPart::FullBottom;
-			rect.setTop(rect.y() - msgRadius());
-		} else {
-			parts = RectPart::NoTopBottom;
-			rect.setTop(rect.y() - msgRadius());
-			rect.setHeight(rect.height() + msgRadius());
 		}
 	}
 
-	void complexOverlayRect(Painter &p, QRect rect, ImageRoundRadius radius, ImageRoundCorners corners) {
+	void complexOverlayRect(Painter &p, QRect rect, ImageRoundRadius radius, RectParts corners) {
 		if (radius == ImageRoundRadius::Ellipse) {
 			PainterHighQualityEnabler hq(p);
 			p.setPen(Qt::NoPen);
 			p.setBrush(p.textPalette().selectOverlay);
 			p.drawEllipse(rect);
 		} else {
-			auto overlayCorners = (radius == ImageRoundRadius::Small) ? SelectedOverlaySmallCorners : SelectedOverlayLargeCorners;
-			auto overlayParts = RectPart::Full | RectPart::None;
-			if (radius == ImageRoundRadius::Large) {
-				complexAdjustRect(corners, rect, overlayParts);
-			}
-			roundRect(p, rect, p.textPalette().selectOverlay, overlayCorners, nullptr, overlayParts);
+			auto overlayCorners = (radius == ImageRoundRadius::Small)
+				? SelectedOverlaySmallCorners
+				: SelectedOverlayLargeCorners;
+			const auto bg = p.textPalette().selectOverlay;
+			rectWithCorners(p, rect, bg, overlayCorners, corners);
 		}
 	}
 
-	void complexLocationRect(Painter &p, QRect rect, ImageRoundRadius radius, ImageRoundCorners corners) {
-		auto parts = RectPart::Full | RectPart::None;
-		complexAdjustRect(corners, rect, parts);
-		roundRect(p, rect, st::msgInBg, MessageInCorners, nullptr, parts);
+	void complexLocationRect(Painter &p, QRect rect, ImageRoundRadius radius, RectParts corners) {
+		rectWithCorners(p, rect, st::msgInBg, MessageInCorners, corners);
 	}
 
 	QImage *cornersMask(ImageRoundRadius radius) {
@@ -2766,7 +2662,7 @@ namespace {
 			QImage images[4];
 			switch (radius) {
 			case ImageRoundRadius::Small: prepareCorners(SmallMaskCorners, st::buttonRadius, bg, nullptr, images); break;
-			case ImageRoundRadius::Large: prepareCorners(LargeMaskCorners, msgRadius(), bg, nullptr, images); break;
+			case ImageRoundRadius::Large: prepareCorners(LargeMaskCorners, st::historyMessageRadius, bg, nullptr, images); break;
 			default: p.fillRect(x, y, w, h, bg); return;
 			}
 

Telegram/SourceFiles/app.h

@@ -52,14 +52,6 @@ namespace App {
 
 	QString formatPhone(QString phone);
 
-	TimeId onlineForSort(UserData *user, TimeId now);
-	int32 onlineWillChangeIn(UserData *user, TimeId now);
-	int32 onlineWillChangeIn(TimeId online, TimeId now);
-	QString onlineText(UserData *user, TimeId now, bool precise = false);
-	QString onlineText(TimeId online, TimeId now, bool precise = false);
-	bool onlineColorUse(UserData *user, TimeId now);
-	bool onlineColorUse(TimeId online, TimeId now);
-
 	UserData *feedUser(const MTPUser &user);
 	UserData *feedUsers(const MTPVector<MTPUser> &users); // returns last user
 	PeerData *feedChat(const MTPChat &chat);
@@ -270,8 +262,8 @@ namespace App {
 #endif // !TDESKTOP_DISABLE_NETWORK_PROXY
 	void setProxySettings(QTcpSocket &socket);
 
-	void complexOverlayRect(Painter &p, QRect rect, ImageRoundRadius radius, ImageRoundCorners corners);
-	void complexLocationRect(Painter &p, QRect rect, ImageRoundRadius radius, ImageRoundCorners corners);
+	void complexOverlayRect(Painter &p, QRect rect, ImageRoundRadius radius, RectParts corners);
+	void complexLocationRect(Painter &p, QRect rect, ImageRoundRadius radius, RectParts corners);
 
 	QImage *cornersMask(ImageRoundRadius radius);
 	void roundRect(Painter &p, int32 x, int32 y, int32 w, int32 h, style::color bg, RoundCorners index, const style::color *shadow = nullptr, RectParts parts = RectPart::Full);

Telegram/SourceFiles/application.cpp

@@ -26,8 +26,10 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "storage/localstorage.h"
 #include "autoupdater.h"
 #include "window/notifications_manager.h"
+#include "core/crash_reports.h"
 #include "messenger.h"
 #include "base/timer.h"
+#include "core/crash_report_window.h"
 
 namespace {
 
@@ -71,8 +73,13 @@ QString _escapeFrom7bit(const QString &str) {
 
 } // namespace
 
-Application::Application(int &argc, char **argv) : QApplication(argc, argv) {
-	QByteArray d(QFile::encodeName(QDir(cWorkingDir()).absolutePath()));
+Application::Application(
+		not_null<Core::Launcher*> launcher,
+		int &argc,
+		char **argv)
+: QApplication(argc, argv)
+, _launcher(launcher) {
+	const auto d = QFile::encodeName(QDir(cWorkingDir()).absolutePath());
 	char h[33] = { 0 };
 	hashMd5Hex(d.constData(), d.size(), h);
 #ifndef OS_MAC_STORE
@@ -206,12 +213,12 @@ void Application::singleInstanceChecked() {
 	if (!Logs::started() || (!cManyInstance() && !Logs::instanceChecked())) {
 		new NotStartedWindow();
 	} else {
-		SignalHandlers::Status status = SignalHandlers::start();
-		if (status == SignalHandlers::CantOpen) {
+		const auto status = CrashReports::Start();
+		if (status == CrashReports::CantOpen) {
 			new NotStartedWindow();
-		} else if (status == SignalHandlers::LastCrashed) {
+		} else if (status == CrashReports::LastCrashed) {
 			if (Sandbox::LastCrashDump().isEmpty()) { // don't handle bad closing for now
-				if (SignalHandlers::restart() == SignalHandlers::CantOpen) {
+				if (CrashReports::Restart() == CrashReports::CantOpen) {
 					new NotStartedWindow();
 				} else {
 					Sandbox::launch();
@@ -313,7 +320,7 @@ void Application::startApplication() {
 
 void Application::createMessenger() {
 	Expects(!App::quitting());
-	_messengerInstance = std::make_unique<Messenger>();
+	_messengerInstance = std::make_unique<Messenger>(_launcher);
 }
 
 void Application::closeApplication() {

Telegram/SourceFiles/application.h

@@ -21,11 +21,16 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #pragma once
 
 class UpdateChecker;
+
+namespace Core {
+class Launcher;
+} // namespace Core
+
 class Application : public QApplication {
 	Q_OBJECT
 
 public:
-	Application(int &argc, char **argv);
+	Application(not_null<Core::Launcher*> launcher, int &argc, char **argv);
 
 	bool event(QEvent *e) override;
 
@@ -55,6 +60,7 @@ private:
 	typedef QPair<QLocalSocket*, QByteArray> LocalClient;
 	typedef QList<LocalClient> LocalClients;
 
+	not_null<Core::Launcher*> _launcher;
 	std::unique_ptr<Messenger> _messengerInstance;
 
 	QString _localServerName, _localSocketReadData;

Telegram/SourceFiles/auth_session.cpp

@@ -22,16 +22,20 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 
 #include "apiwrap.h"
 #include "messenger.h"
+#include "core/changelogs.h"
 #include "storage/file_download.h"
 #include "storage/file_upload.h"
 #include "storage/localstorage.h"
 #include "storage/storage_facade.h"
 #include "storage/serialize_common.h"
+#include "history/history_item_components.h"
 #include "window/notifications_manager.h"
+#include "window/themes/window_theme.h"
 #include "platform/platform_specific.h"
 #include "calls/calls_instance.h"
 #include "window/section_widget.h"
 #include "chat_helpers/tabbed_selector.h"
+#include "boxes/send_files_box.h"
 
 namespace {
 
@@ -40,7 +44,8 @@ constexpr auto kAutoLockTimeoutLateMs = TimeMs(3000);
 } // namespace
 
 AuthSessionData::Variables::Variables()
-: selectorTab(ChatHelpers::SelectorTab::Emoji)
+: sendFilesWay(SendFilesWay::Album)
+, selectorTab(ChatHelpers::SelectorTab::Emoji)
 , floatPlayerColumn(Window::Column::Second)
 , floatPlayerCorner(RectPart::TopRight) {
 }
@@ -79,6 +84,7 @@ QByteArray AuthSessionData::serialize() const {
 			1000000));
 		stream << qint32(_variables.thirdColumnWidth.current());
 		stream << qint32(_variables.thirdSectionExtendedBy);
+		stream << qint32(_variables.sendFilesWay);
 	}
 	return result;
 }
@@ -103,6 +109,7 @@ void AuthSessionData::constructFromSerialized(const QByteArray &serialized) {
 	float64 dialogsWidthRatio = _variables.dialogsWidthRatio.current();
 	int thirdColumnWidth = _variables.thirdColumnWidth.current();
 	int thirdSectionExtendedBy = _variables.thirdSectionExtendedBy;
+	qint32 sendFilesWay = static_cast<qint32>(_variables.sendFilesWay);
 	stream >> selectorTab;
 	stream >> lastSeenWarningSeen;
 	if (!stream.atEnd()) {
@@ -188,6 +195,12 @@ void AuthSessionData::constructFromSerialized(const QByteArray &serialized) {
 	if (_variables.thirdSectionInfoEnabled) {
 		_variables.tabbedSelectorSectionEnabled = false;
 	}
+	auto uncheckedSendFilesWay = static_cast<SendFilesWay>(sendFilesWay);
+	switch (uncheckedSendFilesWay) {
+	case SendFilesWay::Album:
+	case SendFilesWay::Photos:
+	case SendFilesWay::Files: _variables.sendFilesWay = uncheckedSendFilesWay;
+	}
 }
 
 void AuthSessionData::markItemLayoutChanged(not_null<const HistoryItem*> item) {
@@ -242,13 +255,12 @@ auto AuthSessionData::megagroupParticipantRemoved() const -> rpl::producer<Megag
 
 rpl::producer<not_null<UserData*>> AuthSessionData::megagroupParticipantRemoved(
 		not_null<ChannelData*> channel) const {
-	return megagroupParticipantRemoved()
-		| rpl::filter([channel](auto updateChannel, auto user) {
-			return (updateChannel == channel);
-		})
-		| rpl::map([](auto updateChannel, auto user) {
-			return user;
-		});
+	return megagroupParticipantRemoved(
+	) | rpl::filter([channel](auto updateChannel, auto user) {
+		return (updateChannel == channel);
+	}) | rpl::map([](auto updateChannel, auto user) {
+		return user;
+	});
 }
 
 void AuthSessionData::addNewMegagroupParticipant(
@@ -263,13 +275,12 @@ auto AuthSessionData::megagroupParticipantAdded() const -> rpl::producer<Megagro
 
 rpl::producer<not_null<UserData*>> AuthSessionData::megagroupParticipantAdded(
 		not_null<ChannelData*> channel) const {
-	return megagroupParticipantAdded()
-		| rpl::filter([channel](auto updateChannel, auto user) {
-			return (updateChannel == channel);
-		})
-		| rpl::map([](auto updateChannel, auto user) {
-			return user;
-		});
+	return megagroupParticipantAdded(
+	) | rpl::filter([channel](auto updateChannel, auto user) {
+		return (updateChannel == channel);
+	}) | rpl::map([](auto updateChannel, auto user) {
+		return user;
+	});
 }
 
 void AuthSessionData::setTabbedSelectorSectionEnabled(bool enabled) {
@@ -378,6 +389,13 @@ MessageIdsList AuthSessionData::itemsToIds(
 	}) | ranges::to_vector;
 }
 
+MessageIdsList AuthSessionData::groupToIds(
+		not_null<HistoryMessageGroup*> group) const {
+	auto result = itemsToIds(group->others);
+	result.push_back(group->leader->fullId());
+	return result;
+}
+
 AuthSession &Auth() {
 	auto result = Messenger::Instance().authSession();
 	Assert(result != nullptr);
@@ -392,8 +410,10 @@ AuthSession::AuthSession(UserId userId)
 , _downloader(std::make_unique<Storage::Downloader>())
 , _uploader(std::make_unique<Storage::Uploader>())
 , _storage(std::make_unique<Storage::Facade>())
-, _notifications(std::make_unique<Window::Notifications::System>(this)) {
+, _notifications(std::make_unique<Window::Notifications::System>(this))
+, _changelogs(Core::Changelogs::Create(this)) {
 	Expects(_userId != 0);
+
 	_saveDataTimer.setCallback([this] {
 		Local::writeUserSettings();
 	});
@@ -401,7 +421,7 @@ AuthSession::AuthSession(UserId userId)
 		_shouldLockAt = 0;
 		notifications().updateAll();
 	});
-	_api->start();
+	Window::Theme::Background()->start();
 }
 
 bool AuthSession::Exists() {

Telegram/SourceFiles/auth_session.h

@@ -26,6 +26,9 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "base/timer.h"
 #include "chat_helpers/stickers.h"
 
+class ApiWrap;
+enum class SendFilesWay;
+
 namespace Storage {
 class Downloader;
 class Uploader;
@@ -47,7 +50,9 @@ namespace ChatHelpers {
 enum class SelectorTab;
 } // namespace ChatHelpers
 
-class ApiWrap;
+namespace Core {
+class Changelogs;
+} // namespace Core
 
 class AuthSessionData final {
 public:
@@ -108,6 +113,12 @@ public:
 	void setLastSeenWarningSeen(bool lastSeenWarningSeen) {
 		_variables.lastSeenWarningSeen = lastSeenWarningSeen;
 	}
+	void setSendFilesWay(SendFilesWay way) {
+		_variables.sendFilesWay = way;
+	}
+	SendFilesWay sendFilesWay() const {
+		return _variables.sendFilesWay;
+	}
 	ChatHelpers::SelectorTab selectorTab() const {
 		return _variables.selectorTab;
 	}
@@ -263,6 +274,7 @@ public:
 
 	HistoryItemsList idsToItems(const MessageIdsList &ids) const;
 	MessageIdsList itemsToIds(const HistoryItemsList &items) const;
+	MessageIdsList groupToIds(not_null<HistoryMessageGroup*> group) const;
 
 private:
 	struct Variables {
@@ -272,6 +284,7 @@ private:
 		static constexpr auto kDefaultThirdColumnWidth = 0;
 
 		bool lastSeenWarningSeen = false;
+		SendFilesWay sendFilesWay;
 		ChatHelpers::SelectorTab selectorTab; // per-window
 		bool tabbedSelectorSectionEnabled = false; // per-window
 		int tabbedSelectorSectionTooltipShown = 0;
@@ -405,5 +418,6 @@ private:
 	const std::unique_ptr<Storage::Uploader> _uploader;
 	const std::unique_ptr<Storage::Facade> _storage;
 	const std::unique_ptr<Window::Notifications::System> _notifications;
+	const std::unique_ptr<Core::Changelogs> _changelogs;
 
 };

Telegram/SourceFiles/base/observer.h

@@ -46,7 +46,6 @@ struct SubscriptionHandlerHelper<void> {
 template <typename EventType>
 using SubscriptionHandler = typename SubscriptionHandlerHelper<EventType>::type;
 
-// Required because QShared/WeakPointer can't point to void.
 class BaseObservableData {
 };
 
@@ -84,14 +83,17 @@ public:
 
 private:
 	struct Node {
-		Node(const QSharedPointer<internal::BaseObservableData> &observable) : observable(observable) {
+		Node(const std::shared_ptr<internal::BaseObservableData> &observable)
+		: observable(observable) {
 		}
 		Node *next = nullptr;
 		Node *prev = nullptr;
-		QWeakPointer<internal::BaseObservableData> observable;
+		std::weak_ptr<internal::BaseObservableData> observable;
 	};
 	using RemoveAndDestroyMethod = void(*)(Node*);
-	Subscription(Node *node, RemoveAndDestroyMethod removeAndDestroyMethod) : _node(node), _removeAndDestroyMethod(removeAndDestroyMethod) {
+	Subscription(Node *node, RemoveAndDestroyMethod removeAndDestroyMethod)
+	: _node(node)
+	, _removeAndDestroyMethod(removeAndDestroyMethod) {
 	}
 
 	Node *_node = nullptr;
@@ -115,13 +117,13 @@ class CommonObservable {
 public:
 	Subscription add_subscription(Handler &&handler) {
 		if (!_data) {
-			_data = MakeShared<ObservableData<EventType, Handler>>(this);
+			_data = std::make_shared<ObservableData<EventType, Handler>>(this);
 		}
 		return _data->append(std::move(handler));
 	}
 
 private:
-	QSharedPointer<ObservableData<EventType, Handler>> _data;
+	std::shared_ptr<ObservableData<EventType, Handler>> _data;
 
 	friend class CommonObservableData<EventType, Handler>;
 	friend class BaseObservable<EventType, Handler, base::type_traits<EventType>::is_fast_copy_type::value>;
@@ -184,7 +186,11 @@ public:
 
 private:
 	struct Node : public Subscription::Node {
-		Node(const QSharedPointer<BaseObservableData> &observer, Handler &&handler) : Subscription::Node(observer), handler(std::move(handler)) {
+		Node(
+			const std::shared_ptr<BaseObservableData> &observer,
+			Handler &&handler)
+		: Subscription::Node(observer)
+		, handler(std::move(handler)) {
 		}
 		Handler handler;
 	};
@@ -210,8 +216,8 @@ private:
 	}
 
 	static void removeAndDestroyNode(Subscription::Node *node) {
-		if (auto that = node->observable.toStrongRef()) {
-			static_cast<CommonObservableData*>(that.data())->remove(node);
+		if (const auto that = node->observable.lock()) {
+			static_cast<CommonObservableData*>(that.get())->remove(node);
 		}
 		delete static_cast<Node*>(node);
 	}

Telegram/SourceFiles/boxes/about_box.cpp

@@ -30,6 +30,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "ui/widgets/labels.h"
 #include "styles/style_boxes.h"
 #include "platform/platform_file_utilities.h"
+#include "core/click_handler_types.h"
 
 AboutBox::AboutBox(QWidget *parent)
 : _version(this, lng_about_version(lt_version, QString::fromLatin1(AppVersionStr.c_str()) + (cAlphaVersion() ? " alpha" : "") + (cBetaVersion() ? qsl(" beta %1").arg(cBetaVersion()) : QString())), st::aboutVersionLink)
@@ -43,7 +44,18 @@ void AboutBox::prepare() {
 
 	addButton(langFactory(lng_close), [this] { closeBox(); });
 
+	const auto linkHook = [](const ClickHandlerPtr &link, auto button) {
+		if (const auto url = dynamic_cast<UrlClickHandler*>(link.get())) {
+			url->UrlClickHandler::onClick(button);
+			return false;
+		}
+		return true;
+	};
+
 	_text3->setRichText(lng_about_text_3(lt_faq_open, qsl("[a href=\"%1\"]").arg(telegramFaqLink()), lt_faq_close, qsl("[/a]")));
+	_text1->setClickHandlerHook(linkHook);
+	_text2->setClickHandlerHook(linkHook);
+	_text3->setClickHandlerHook(linkHook);
 
 	_version->setClickedCallback([this] { showVersionHistory(); });
 

Telegram/SourceFiles/boxes/abstract_box.cpp

@@ -169,7 +169,7 @@ QPixmap BoxContent::grabInnerCache() {
 	auto isBottomShadowVisible = !_bottomShadow->isHidden();
 	if (isTopShadowVisible) _topShadow->setVisible(false);
 	if (isBottomShadowVisible) _bottomShadow->setVisible(false);
-	auto result = myGrab(this, _scroll->geometry());
+	auto result = Ui::GrabWidget(this, _scroll->geometry());
 	if (isTopShadowVisible) _topShadow->setVisible(true);
 	if (isBottomShadowVisible) _bottomShadow->setVisible(true);
 	return result;
@@ -250,7 +250,6 @@ void AbstractBox::paintEvent(QPaintEvent *e) {
 	auto paintBottomRounded = clip.intersects(QRect(0, height() - st::boxRadius, width(), st::boxRadius));
 	if (paintTopRounded || paintBottomRounded) {
 		auto parts = RectPart::None | 0;
-		parts |= RectPart::None;
 		if (paintTopRounded) parts |= RectPart::FullTop;
 		if (paintBottomRounded) parts |= RectPart::FullBottom;
 		App::roundRect(p, rect(), st::boxBg, BoxCorners, nullptr, parts);

Telegram/SourceFiles/boxes/add_contact_box.cpp

@@ -36,6 +36,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "ui/widgets/labels.h"
 #include "ui/toast/toast.h"
 #include "ui/special_buttons.h"
+#include "ui/text_options.h"
 #include "mainwidget.h"
 #include "mainwindow.h"
 #include "apiwrap.h"
@@ -1378,8 +1379,15 @@ RevokePublicLinkBox::Inner::Inner(QWidget *parent, base::lambda<void()> revokeCa
 
 					auto row = ChatRow(peer);
 					row.peer = peer;
-					row.name.setText(st::contactsNameStyle, peer->name, _textNameOptions);
-					row.status.setText(st::defaultTextStyle, Messenger::Instance().createInternalLink(textcmdLink(1, peer->userName())), _textDlgOptions);
+					row.name.setText(
+						st::contactsNameStyle,
+						peer->name,
+						Ui::NameTextOptions());
+					row.status.setText(
+						st::defaultTextStyle,
+						Messenger::Instance().createInternalLink(
+							textcmdLink(1, peer->userName())),
+						Ui::DialogTextOptions());
 					_rows.push_back(std::move(row));
 				}
 			}

Telegram/SourceFiles/boxes/boxes.style

@@ -716,3 +716,11 @@ groupStickersField: InputField(contactsSearchField) {
 	heightMin: 32px;
 }
 groupStickersSubTitleHeight: 36px;
+
+sendMediaPreviewSize: 308px;
+sendMediaPreviewHeightMax: 1280;
+sendMediaPreviewPhotoSkip: 10px;
+sendMediaFileThumbSize: 64px;
+sendMediaFileThumbSkip: 10px;
+sendMediaFileNameTop: 7px;
+sendMediaFileStatusTop: 37px;

Telegram/SourceFiles/boxes/confirm_box.cpp

@@ -327,7 +327,7 @@ void ConvertToSupergroupBox::convertDone(const MTPUpdates &updates) {
 	auto handleChats = [](auto &mtpChats) {
 		for_const (auto &mtpChat, mtpChats.v) {
 			if (mtpChat.type() == mtpc_channel) {
-				auto channel = App::channel(mtpChat.c_channel().vid.v);
+				const auto channel = App::channel(mtpChat.c_channel().vid.v);
 				Ui::showPeerHistory(channel, ShowAtUnreadMsgId);
 				Auth().api().requestParticipantsCountDelayed(channel);
 			}
@@ -565,13 +565,22 @@ void DeleteMessagesBox::deleteAndClear() {
 
 	if (_moderateFrom) {
 		if (_banUser && _banUser->checked()) {
-			Auth().api().kickParticipant(_moderateInChannel, _moderateFrom, MTP_channelBannedRights(MTP_flags(0), MTP_int(0)));
+			Auth().api().kickParticipant(
+				_moderateInChannel,
+				_moderateFrom,
+				MTP_channelBannedRights(MTP_flags(0), MTP_int(0)));
 		}
 		if (_reportSpam->checked()) {
-			MTP::send(MTPchannels_ReportSpam(_moderateInChannel->inputChannel, _moderateFrom->inputUser, MTP_vector<MTPint>(1, MTP_int(_ids[0].msg))));
+			MTP::send(
+				MTPchannels_ReportSpam(
+					_moderateInChannel->inputChannel,
+					_moderateFrom->inputUser,
+					MTP_vector<MTPint>(1, MTP_int(_ids[0].msg))));
 		}
 		if (_deleteAll && _deleteAll->checked()) {
-			App::main()->deleteAllFromUser(_moderateInChannel, _moderateFrom);
+			App::main()->deleteAllFromUser(
+				_moderateInChannel,
+				_moderateFrom);
 		}
 	}
 

Telegram/SourceFiles/boxes/edit_caption_box.cpp

@@ -0,0 +1,413 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop version of Telegram messaging app, see https://telegram.org
+
+Telegram Desktop is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+It is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+In addition, as a special exception, the copyright holders give permission
+to link the code of portions of this program with the OpenSSL library.
+
+Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
+Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
+*/
+#include "boxes/edit_caption_box.h"
+
+#include "ui/widgets/input_fields.h"
+#include "ui/text_options.h"
+#include "media/media_clip_reader.h"
+#include "history/history_media_types.h"
+#include "lang/lang_keys.h"
+#include "window/window_controller.h"
+#include "mainwidget.h"
+#include "styles/style_history.h"
+#include "styles/style_boxes.h"
+
+EditCaptionBox::EditCaptionBox(
+	QWidget*,
+	not_null<HistoryMedia*> media,
+	FullMsgId msgId)
+: _msgId(msgId) {
+	Expects(media->canEditCaption());
+
+	QSize dimensions;
+	ImagePtr image;
+	QString caption;
+	DocumentData *doc = nullptr;
+
+	switch (media->type()) {
+	case MediaTypeGif: {
+		_animated = true;
+		doc = static_cast<HistoryGif*>(media.get())->getDocument();
+		dimensions = doc->dimensions;
+		image = doc->thumb;
+	} break;
+
+	case MediaTypePhoto: {
+		_photo = true;
+		auto photo = static_cast<HistoryPhoto*>(media.get())->getPhoto();
+		dimensions = QSize(photo->full->width(), photo->full->height());
+		image = photo->full;
+	} break;
+
+	case MediaTypeVideo: {
+		_animated = true;
+		doc = static_cast<HistoryVideo*>(media.get())->getDocument();
+		dimensions = doc->dimensions;
+		image = doc->thumb;
+	} break;
+
+	case MediaTypeGrouped: {
+		if (const auto photo = media->getPhoto()) {
+			dimensions = QSize(photo->full->width(), photo->full->height());
+			image = photo->full;
+			_photo = true;
+		} else if (const auto doc = media->getDocument()) {
+			dimensions = doc->dimensions;
+			image = doc->thumb;
+			_animated = true;
+		}
+	} break;
+
+	case MediaTypeFile:
+	case MediaTypeMusicFile:
+	case MediaTypeVoiceFile: {
+		_doc = true;
+		doc = static_cast<HistoryDocument*>(media.get())->getDocument();
+		image = doc->thumb;
+	} break;
+	}
+	caption = media->getCaption().text;
+
+	if (!_animated && (dimensions.isEmpty() || doc || image->isNull())) {
+		if (image->isNull()) {
+			_thumbw = 0;
+		} else {
+			int32 tw = image->width(), th = image->height();
+			if (tw > th) {
+				_thumbw = (tw * st::msgFileThumbSize) / th;
+			} else {
+				_thumbw = st::msgFileThumbSize;
+			}
+			auto options = Images::Option::Smooth | Images::Option::RoundedSmall | Images::Option::RoundedTopLeft | Images::Option::RoundedTopRight | Images::Option::RoundedBottomLeft | Images::Option::RoundedBottomRight;
+			_thumb = Images::pixmap(image->pix().toImage(), _thumbw * cIntRetinaFactor(), 0, options, st::msgFileThumbSize, st::msgFileThumbSize);
+		}
+
+		if (doc) {
+			auto nameString = doc->isVoiceMessage()
+				? lang(lng_media_audio)
+				: doc->composeNameString();
+			_name.setText(
+				st::semiboldTextStyle,
+				nameString,
+				Ui::NameTextOptions());
+			_status = formatSizeText(doc->size);
+			_statusw = qMax(
+				_name.maxWidth(),
+				st::normalFont->width(_status));
+			_isImage = doc->isImage();
+			_isAudio = (doc->isVoiceMessage() || doc->isAudioFile());
+		}
+	} else {
+		int32 maxW = 0, maxH = 0;
+		if (_animated) {
+			int32 limitW = st::sendMediaPreviewSize;
+			int32 limitH = st::confirmMaxHeight;
+			maxW = qMax(dimensions.width(), 1);
+			maxH = qMax(dimensions.height(), 1);
+			if (maxW * limitH > maxH * limitW) {
+				if (maxW < limitW) {
+					maxH = maxH * limitW / maxW;
+					maxW = limitW;
+				}
+			} else {
+				if (maxH < limitH) {
+					maxW = maxW * limitH / maxH;
+					maxH = limitH;
+				}
+			}
+			_thumb = image->pixNoCache(maxW * cIntRetinaFactor(), maxH * cIntRetinaFactor(), Images::Option::Smooth | Images::Option::Blurred, maxW, maxH);
+			prepareGifPreview(doc);
+		} else {
+			maxW = dimensions.width();
+			maxH = dimensions.height();
+			_thumb = image->pixNoCache(maxW * cIntRetinaFactor(), maxH * cIntRetinaFactor(), Images::Option::Smooth, maxW, maxH);
+		}
+		int32 tw = _thumb.width(), th = _thumb.height();
+		if (!tw || !th) {
+			tw = th = 1;
+		}
+		_thumbw = st::sendMediaPreviewSize;
+		if (_thumb.width() < _thumbw) {
+			_thumbw = (_thumb.width() > 20) ? _thumb.width() : 20;
+		}
+		int32 maxthumbh = qMin(qRound(1.5 * _thumbw), int(st::confirmMaxHeight));
+		_thumbh = qRound(th * float64(_thumbw) / tw);
+		if (_thumbh > maxthumbh) {
+			_thumbw = qRound(_thumbw * float64(maxthumbh) / _thumbh);
+			_thumbh = maxthumbh;
+			if (_thumbw < 10) {
+				_thumbw = 10;
+			}
+		}
+		_thumbx = (st::boxWideWidth - _thumbw) / 2;
+
+		_thumb = App::pixmapFromImageInPlace(_thumb.toImage().scaled(_thumbw * cIntRetinaFactor(), _thumbh * cIntRetinaFactor(), Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
+		_thumb.setDevicePixelRatio(cRetinaFactor());
+	}
+	Assert(_animated || _photo || _doc);
+
+	_field.create(this, st::confirmCaptionArea, langFactory(lng_photo_caption), caption);
+	_field->setMaxLength(MaxPhotoCaption);
+	_field->setCtrlEnterSubmit(Ui::CtrlEnterSubmit::Both);
+}
+
+void EditCaptionBox::prepareGifPreview(DocumentData *document) {
+	auto createGifPreview = [document] {
+		return (document && document->isAnimation());
+	};
+	auto createGifPreviewResult = createGifPreview(); // Clang freeze workaround.
+	if (createGifPreviewResult) {
+		_gifPreview = Media::Clip::MakeReader(document, _msgId, [this](Media::Clip::Notification notification) {
+			clipCallback(notification);
+		});
+		if (_gifPreview) _gifPreview->setAutoplay();
+	}
+}
+
+void EditCaptionBox::clipCallback(Media::Clip::Notification notification) {
+	using namespace Media::Clip;
+	switch (notification) {
+	case NotificationReinit: {
+		if (_gifPreview && _gifPreview->state() == State::Error) {
+			_gifPreview.setBad();
+		}
+
+		if (_gifPreview && _gifPreview->ready() && !_gifPreview->started()) {
+			auto s = QSize(_thumbw, _thumbh);
+			_gifPreview->start(s.width(), s.height(), s.width(), s.height(), ImageRoundRadius::None, RectPart::None);
+		}
+
+		update();
+	} break;
+
+	case NotificationRepaint: {
+		if (_gifPreview && !_gifPreview->currentDisplayed()) {
+			update();
+		}
+	} break;
+	}
+}
+
+void EditCaptionBox::prepare() {
+	addButton(langFactory(lng_settings_save), [this] { save(); });
+	addButton(langFactory(lng_cancel), [this] { closeBox(); });
+
+	updateBoxSize();
+	connect(_field, &Ui::InputArea::submitted, this, [this] { save(); });
+	connect(_field, &Ui::InputArea::cancelled, this, [this] {
+		closeBox();
+	});
+	connect(_field, &Ui::InputArea::resized, this, [this] {
+		captionResized();
+	});
+
+	auto cursor = _field->textCursor();
+	cursor.movePosition(QTextCursor::End);
+	_field->setTextCursor(cursor);
+}
+
+void EditCaptionBox::captionResized() {
+	updateBoxSize();
+	resizeEvent(0);
+	update();
+}
+
+void EditCaptionBox::updateBoxSize() {
+	auto newHeight = st::boxPhotoPadding.top() + st::boxPhotoCaptionSkip + _field->height() + errorTopSkip() + st::normalFont->height;
+	if (_photo || _animated) {
+		newHeight += _thumbh;
+	} else if (_thumbw) {
+		newHeight += 0 + st::msgFileThumbSize + 0;
+	} else if (_doc) {
+		newHeight += 0 + st::msgFileSize + 0;
+	} else {
+		newHeight += st::boxTitleFont->height;
+	}
+	setDimensions(st::boxWideWidth, newHeight);
+}
+
+int EditCaptionBox::errorTopSkip() const {
+	return (st::boxButtonPadding.top() / 2);
+}
+
+void EditCaptionBox::paintEvent(QPaintEvent *e) {
+	BoxContent::paintEvent(e);
+
+	Painter p(this);
+
+	if (_photo || _animated) {
+		if (_thumbx > st::boxPhotoPadding.left()) {
+			p.fillRect(st::boxPhotoPadding.left(), st::boxPhotoPadding.top(), _thumbx - st::boxPhotoPadding.left(), _thumbh, st::confirmBg);
+		}
+		if (_thumbx + _thumbw < width() - st::boxPhotoPadding.right()) {
+			p.fillRect(_thumbx + _thumbw, st::boxPhotoPadding.top(), width() - st::boxPhotoPadding.right() - _thumbx - _thumbw, _thumbh, st::confirmBg);
+		}
+		if (_gifPreview && _gifPreview->started()) {
+			auto s = QSize(_thumbw, _thumbh);
+			auto paused = controller()->isGifPausedAtLeastFor(Window::GifPauseReason::Layer);
+			auto frame = _gifPreview->current(s.width(), s.height(), s.width(), s.height(), ImageRoundRadius::None, RectPart::None, paused ? 0 : getms());
+			p.drawPixmap(_thumbx, st::boxPhotoPadding.top(), frame);
+		} else {
+			p.drawPixmap(_thumbx, st::boxPhotoPadding.top(), _thumb);
+		}
+		if (_animated && !_gifPreview) {
+			QRect inner(_thumbx + (_thumbw - st::msgFileSize) / 2, st::boxPhotoPadding.top() + (_thumbh - st::msgFileSize) / 2, st::msgFileSize, st::msgFileSize);
+			p.setPen(Qt::NoPen);
+			p.setBrush(st::msgDateImgBg);
+
+			{
+				PainterHighQualityEnabler hq(p);
+				p.drawEllipse(inner);
+			}
+
+			auto icon = &st::historyFileInPlay;
+			icon->paintInCenter(p, inner);
+		}
+	} else if (_doc) {
+		int32 w = width() - st::boxPhotoPadding.left() - st::boxPhotoPadding.right();
+		int32 h = _thumbw ? (0 + st::msgFileThumbSize + 0) : (0 + st::msgFileSize + 0);
+		int32 nameleft = 0, nametop = 0, nameright = 0, statustop = 0;
+		if (_thumbw) {
+			nameleft = 0 + st::msgFileThumbSize + st::msgFileThumbPadding.right();
+			nametop = st::msgFileThumbNameTop - st::msgFileThumbPadding.top();
+			nameright = 0;
+			statustop = st::msgFileThumbStatusTop - st::msgFileThumbPadding.top();
+		} else {
+			nameleft = 0 + st::msgFileSize + st::msgFilePadding.right();
+			nametop = st::msgFileNameTop - st::msgFilePadding.top();
+			nameright = 0;
+			statustop = st::msgFileStatusTop - st::msgFilePadding.top();
+		}
+		int32 namewidth = w - nameleft - 0;
+		if (namewidth > _statusw) {
+			//w -= (namewidth - _statusw);
+			//namewidth = _statusw;
+		}
+		int32 x = (width() - w) / 2, y = st::boxPhotoPadding.top();
+
+//		App::roundRect(p, x, y, w, h, st::msgInBg, MessageInCorners, &st::msgInShadow);
+
+		if (_thumbw) {
+			QRect rthumb(rtlrect(x + 0, y + 0, st::msgFileThumbSize, st::msgFileThumbSize, width()));
+			p.drawPixmap(rthumb.topLeft(), _thumb);
+		} else {
+			QRect inner(rtlrect(x + 0, y + 0, st::msgFileSize, st::msgFileSize, width()));
+			p.setPen(Qt::NoPen);
+			p.setBrush(st::msgFileInBg);
+
+			{
+				PainterHighQualityEnabler hq(p);
+				p.drawEllipse(inner);
+			}
+
+			auto icon = &(_isAudio ? st::historyFileInPlay : _isImage ? st::historyFileInImage : st::historyFileInDocument);
+			icon->paintInCenter(p, inner);
+		}
+		p.setFont(st::semiboldFont);
+		p.setPen(st::historyFileNameInFg);
+		_name.drawLeftElided(p, x + nameleft, y + nametop, namewidth, width());
+
+		auto &status = st::mediaInFg;
+		p.setFont(st::normalFont);
+		p.setPen(status);
+		p.drawTextLeft(x + nameleft, y + statustop, width(), _status);
+	} else {
+		p.setFont(st::boxTitleFont);
+		p.setPen(st::boxTextFg);
+		p.drawTextLeft(_field->x(), st::boxPhotoPadding.top(), width(), lang(lng_edit_message));
+	}
+
+	if (!_error.isEmpty()) {
+		p.setFont(st::normalFont);
+		p.setPen(st::boxTextFgError);
+		p.drawTextLeft(_field->x(), _field->y() + _field->height() + errorTopSkip(), width(), _error);
+	}
+}
+
+void EditCaptionBox::resizeEvent(QResizeEvent *e) {
+	BoxContent::resizeEvent(e);
+	_field->resize(st::sendMediaPreviewSize, _field->height());
+	_field->moveToLeft(st::boxPhotoPadding.left(), height() - st::normalFont->height - errorTopSkip() - _field->height());
+}
+
+void EditCaptionBox::setInnerFocus() {
+	_field->setFocusFast();
+}
+
+void EditCaptionBox::save() {
+	if (_saveRequestId) return;
+
+	auto item = App::histItemById(_msgId);
+	if (!item) {
+		_error = lang(lng_edit_deleted);
+		update();
+		return;
+	}
+
+	auto flags = MTPmessages_EditMessage::Flag::f_message | 0;
+	if (_previewCancelled) {
+		flags |= MTPmessages_EditMessage::Flag::f_no_webpage;
+	}
+	MTPVector<MTPMessageEntity> sentEntities;
+	if (!sentEntities.v.isEmpty()) {
+		flags |= MTPmessages_EditMessage::Flag::f_entities;
+	}
+	auto text = TextUtilities::PrepareForSending(_field->getLastText(), TextUtilities::PrepareTextOption::CheckLinks);
+	_saveRequestId = MTP::send(
+		MTPmessages_EditMessage(
+			MTP_flags(flags),
+			item->history()->peer->input,
+			MTP_int(item->id),
+			MTP_string(text),
+			MTPnullMarkup,
+			sentEntities,
+			MTP_inputGeoPointEmpty()),
+		rpcDone(&EditCaptionBox::saveDone),
+		rpcFail(&EditCaptionBox::saveFail));
+}
+
+void EditCaptionBox::saveDone(const MTPUpdates &updates) {
+	_saveRequestId = 0;
+	closeBox();
+	if (App::main()) {
+		App::main()->sentUpdatesReceived(updates);
+	}
+}
+
+bool EditCaptionBox::saveFail(const RPCError &error) {
+	if (MTP::isDefaultHandledError(error)) return false;
+
+	_saveRequestId = 0;
+	QString err = error.type();
+	if (err == qstr("MESSAGE_ID_INVALID") || err == qstr("CHAT_ADMIN_REQUIRED") || err == qstr("MESSAGE_EDIT_TIME_EXPIRED")) {
+		_error = lang(lng_edit_error);
+	} else if (err == qstr("MESSAGE_NOT_MODIFIED")) {
+		closeBox();
+		return true;
+	} else if (err == qstr("MESSAGE_EMPTY")) {
+		_field->setFocus();
+		_field->showError();
+	} else {
+		_error = lang(lng_edit_error);
+	}
+	update();
+	return true;
+}

Telegram/SourceFiles/boxes/edit_caption_box.h

@@ -0,0 +1,77 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop version of Telegram messaging app, see https://telegram.org
+
+Telegram Desktop is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+It is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+In addition, as a special exception, the copyright holders give permission
+to link the code of portions of this program with the OpenSSL library.
+
+Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
+Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
+*/
+#pragma once
+
+#include "boxes/abstract_box.h"
+
+namespace Ui {
+class InputArea;
+} // namespace Ui
+
+class EditCaptionBox : public BoxContent, public RPCSender {
+public:
+	EditCaptionBox(QWidget*, not_null<HistoryMedia*> media, FullMsgId msgId);
+
+protected:
+	void prepare() override;
+	void setInnerFocus() override;
+
+	void paintEvent(QPaintEvent *e) override;
+	void resizeEvent(QResizeEvent *e) override;
+
+private:
+	void updateBoxSize();
+	void prepareGifPreview(DocumentData *document);
+	void clipCallback(Media::Clip::Notification notification);
+
+	void save();
+	void captionResized();
+
+	void saveDone(const MTPUpdates &updates);
+	bool saveFail(const RPCError &error);
+
+	int errorTopSkip() const;
+
+	FullMsgId _msgId;
+	bool _animated = false;
+	bool _photo = false;
+	bool _doc = false;
+
+	QPixmap _thumb;
+	Media::Clip::ReaderPointer _gifPreview;
+
+	object_ptr<Ui::InputArea> _field = { nullptr };
+
+	int _thumbx = 0;
+	int _thumbw = 0;
+	int _thumbh = 0;
+	Text _name;
+	QString _status;
+	int _statusw = 0;
+	bool _isAudio = false;
+	bool _isImage = false;
+
+	bool _previewCancelled = false;
+	mtpRequestId _saveRequestId = 0;
+
+	QString _error;
+
+};

Telegram/SourceFiles/boxes/edit_participant_box.cpp

@@ -24,9 +24,11 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "ui/widgets/checkbox.h"
 #include "ui/widgets/labels.h"
 #include "ui/widgets/buttons.h"
-#include "styles/style_boxes.h"
+#include "ui/text_options.h"
 #include "ui/special_buttons.h"
 #include "boxes/calendar_box.h"
+#include "data/data_peer_values.h"
+#include "styles/style_boxes.h"
 
 namespace {
 
@@ -127,7 +129,10 @@ EditParticipantBox::Inner::Inner(
 	st::rightsPhotoButton)
 , _hasAdminRights(hasAdminRights) {
 	_userPhoto->setPointerCursor(false);
-	_userName.setText(st::rightsNameStyle, App::peerName(_user), _textNameOptions);
+	_userName.setText(
+		st::rightsNameStyle,
+		App::peerName(_user),
+		Ui::NameTextOptions());
 }
 
 void EditParticipantBox::Inner::removeControl(QPointer<TWidget> widget) {
@@ -176,7 +181,7 @@ void EditParticipantBox::Inner::paintEvent(QPaintEvent *e) {
 			auto seesAllMessages = (_user->botInfo->readsAllHistory || _hasAdminRights);
 			return lang(seesAllMessages ? lng_status_bot_reads_all : lng_status_bot_not_reads_all);
 		}
-		return App::onlineText(_user->onlineTill, unixtime());
+		return Data::OnlineText(_user->onlineTill, unixtime());
 	};
 	p.setFont(st::contactsStatusFont);
 	p.setPen(st::contactsStatusFg);

Telegram/SourceFiles/boxes/edit_privacy_box.cpp

@@ -287,10 +287,10 @@ void EditPrivacyBox::createWidgets() {
 	};
 	auto createExceptionLink = [this](Exception exception) {
 		exceptionLink(exception).create(this, object_ptr<Ui::LinkButton>(this, exceptionLinkText(exception)), exceptionLinkMargins());
-		exceptionLink(exception)->heightValue()
-			| rpl::start_with_next([this] {
-				resizeToWidth(width());
-			}, lifetime());
+		exceptionLink(exception)->heightValue(
+		) | rpl::start_with_next([this] {
+			resizeToWidth(width());
+		}, lifetime());
 		exceptionLink(exception)->entity()->setClickedCallback([this, exception] { editExceptionUsers(exception); });
 	};
 

Telegram/SourceFiles/boxes/notifications_box.cpp

@@ -127,10 +127,10 @@ void NotificationsBox::prepare() {
 		_sampleOpacities.push_back(Animation());
 	}
 	_countSlider->setActiveSectionFast(_oldCount - 1);
-	_countSlider->sectionActivated()
-		| rpl::start_with_next(
-			[this] { countChanged(); },
-			lifetime());
+	_countSlider->sectionActivated(
+	) | rpl::start_with_next(
+		[this] { countChanged(); },
+		lifetime());
 
 	setMouseTracking(true);
 

Telegram/SourceFiles/boxes/peer_list_box.cpp

@@ -34,9 +34,11 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "ui/effects/ripple_animation.h"
 #include "ui/empty_userpic.h"
 #include "ui/wrap/slide_wrap.h"
+#include "ui/text_options.h"
 #include "lang/lang_keys.h"
 #include "observer_peer.h"
 #include "storage/file_download.h"
+#include "data/data_peer_values.h"
 #include "window/themes/window_theme.h"
 
 PeerListBox::PeerListBox(
@@ -53,10 +55,10 @@ void PeerListBox::createMultiSelect() {
 
 	auto entity = object_ptr<Ui::MultiSelect>(this, st::contactsMultiSelect, langFactory(lng_participant_filter));
 	_select.create(this, std::move(entity));
-	_select->heightValue()
-		| rpl::start_with_next(
-			[this] { updateScrollSkips(); },
-			lifetime());
+	_select->heightValue(
+	) | rpl::start_with_next(
+		[this] { updateScrollSkips(); },
+		lifetime());
 	_select->entity()->setSubmittedCallback([this](bool chtrlShiftEnter) { content()->submitted(); });
 	_select->entity()->setQueryChangedCallback([this](const QString &query) { searchQueryChanged(query); });
 	_select->entity()->setItemRemovedCallback([this](uint64 itemId) {
@@ -103,15 +105,15 @@ void PeerListBox::prepare() {
 	setDimensions(st::boxWideWidth, st::boxMaxListHeight);
 	if (_select) {
 		_select->finishAnimating();
-		myEnsureResized(_select);
+		Ui::SendPendingMoveResizeEvents(_select);
 		_scrollBottomFixed = true;
 		onScrollToY(0);
 	}
 
-	content()->scrollToRequests()
-		| rpl::start_with_next([this](Ui::ScrollToRequest request) {
-			onScrollToY(request.ymin, request.ymax);
-		}, lifetime());
+	content()->scrollToRequests(
+	) | rpl::start_with_next([this](Ui::ScrollToRequest request) {
+		onScrollToY(request.ymin, request.ymax);
+	}, lifetime());
 
 	if (_init) {
 		_init(this);
@@ -357,12 +359,12 @@ void PeerListRow::refreshStatus() {
 			setStatusText(lang(lng_saved_forward_here));
 		} else {
 			auto time = unixtime();
-			setStatusText(App::onlineText(user, time));
-			if (App::onlineColorUse(user, time)) {
+			setStatusText(Data::OnlineText(user, time));
+			if (Data::OnlineTextActive(user, time)) {
 				_statusType = StatusType::Online;
 			}
 			_statusValidTill = getms()
-				+ App::onlineWillChangeIn(user, time) * 1000LL;
+				+ Data::OnlineChangeTimeout(user, time);
 		}
 	} else if (auto chat = peer()->asChat()) {
 		if (!chat->amIn()) {
@@ -390,7 +392,7 @@ void PeerListRow::refreshName(const style::PeerListItem &st) {
 	const auto text = _isSavedMessagesChat
 		? lang(lng_saved_messages)
 		: peer()->name;
-	_name.setText(st.nameStyle, text, _textNameOptions);
+	_name.setText(st.nameStyle, text, Ui::NameTextOptions());
 }
 
 PeerListRow::~PeerListRow() = default;
@@ -515,7 +517,7 @@ void PeerListRow::paintDisabledCheckUserpic(
 }
 
 void PeerListRow::setStatusText(const QString &text) {
-	_status.setText(st::defaultTextStyle, text, _textNameOptions);
+	_status.setText(st::defaultTextStyle, text, Ui::NameTextOptions());
 }
 
 float64 PeerListRow::checkedRatio() {

Telegram/SourceFiles/boxes/peer_list_box.h

@@ -715,10 +715,10 @@ public:
 	}
 	void peerListSortRows(
 			base::lambda<bool(const PeerListRow &a, const PeerListRow &b)> compare) override {
-		_content->reorderRows([compare = std::move(compare)](
+		_content->reorderRows([&](
 				auto &&begin,
 				auto &&end) {
-			std::sort(begin, end, [&compare](auto &&a, auto &&b) {
+			std::sort(begin, end, [&](auto &&a, auto &&b) {
 				return compare(*a, *b);
 			});
 		});
@@ -726,10 +726,10 @@ public:
 	int peerListPartitionRows(
 			base::lambda<bool(const PeerListRow &a)> border) override {
 		auto result = 0;
-		_content->reorderRows([border = std::move(border), &result](
+		_content->reorderRows([&](
 				auto &&begin,
 				auto &&end) {
-			auto edge = std::stable_partition(begin, end, [&border](
+			auto edge = std::stable_partition(begin, end, [&](
 					auto &&current) {
 				return border(*current);
 			});

Telegram/SourceFiles/boxes/peer_list_controllers.cpp

@@ -750,23 +750,24 @@ void AddBotToGroupBoxController::shareBotGame(not_null<PeerData*> chat) {
 		if (!weak) {
 			return;
 		}
-		auto history = App::historyLoaded(chat);
-		auto afterRequestId = history ? history->sendRequestId : 0;
-		auto randomId = rand_value<uint64>();
-		auto gameShortName = bot->botInfo->shareGameShortName;
-		auto inputGame = MTP_inputGameShortName(
-			bot->inputUser,
-			MTP_string(gameShortName));
-		auto request = MTPmessages_SendMedia(
-			MTP_flags(0),
-			chat->input,
-			MTP_int(0),
-			MTP_inputMediaGame(inputGame),
-			MTP_long(randomId),
-			MTPnullMarkup);
-		auto done = App::main()->rpcDone(&MainWidget::sentUpdatesReceived);
-		auto fail = App::main()->rpcFail(&MainWidget::sendMessageFail);
-		auto requestId = MTP::send(request, done, fail, 0, 0, afterRequestId);
+		const auto history = App::historyLoaded(chat);
+		const auto randomId = rand_value<uint64>();
+		const auto requestId = MTP::send(
+			MTPmessages_SendMedia(
+				MTP_flags(0),
+				chat->input,
+				MTP_int(0),
+				MTP_inputMediaGame(
+					MTP_inputGameShortName(
+						bot->inputUser,
+						MTP_string(bot->botInfo->shareGameShortName))),
+				MTP_long(randomId),
+				MTPnullMarkup),
+			App::main()->rpcDone(&MainWidget::sentUpdatesReceived),
+			App::main()->rpcFail(&MainWidget::sendMessageFail),
+			0,
+			0,
+			history ? history->sendRequestId : 0);
 		if (history) {
 			history->sendRequestId = requestId;
 		}
@@ -778,9 +779,9 @@ void AddBotToGroupBoxController::shareBotGame(not_null<PeerData*> chat) {
 			return lng_bot_sure_share_game(lt_user, App::peerName(chat));
 		}
 		return lng_bot_sure_share_game_group(lt_group, chat->name);
-	};
+	}();
 	Ui::show(
-		Box<ConfirmBox>(confirmText(), send),
+		Box<ConfirmBox>(confirmText, std::move(send)),
 		LayerOption::KeepOther);
 }
 
@@ -799,17 +800,16 @@ void AddBotToGroupBoxController::addBotToGroup(not_null<PeerData*> chat) {
 		}
 		if (auto &info = bot->botInfo) {
 			if (!info->startGroupToken.isEmpty()) {
-				auto request = MTPmessages_StartBot(
-					bot->inputUser,
-					chat->input,
-					MTP_long(rand_value<uint64>()),
-					MTP_string(info->startGroupToken));
-				auto done = App::main()->rpcDone(
-					&MainWidget::sentUpdatesReceived);
-				auto fail = App::main()->rpcFail(
-					&MainWidget::addParticipantFail,
-					{ bot, chat });
-				MTP::send(request, done, fail);
+				MTP::send(
+					MTPmessages_StartBot(
+						bot->inputUser,
+						chat->input,
+						MTP_long(rand_value<uint64>()),
+						MTP_string(info->startGroupToken)),
+					App::main()->rpcDone(&MainWidget::sentUpdatesReceived),
+					App::main()->rpcFail(
+						&MainWidget::addParticipantFail,
+						{ bot, chat }));
 			} else {
 				App::main()->addParticipants(
 					chat,

Telegram/SourceFiles/boxes/peers/edit_peer_info_box.cpp

@@ -264,17 +264,17 @@ object_ptr<Ui::RpWidget> Controller::createPhotoAndTitleEdit() {
 	auto titleEdit = Ui::AttachParentChild(
 		container,
 		createTitleEdit());
-	photoWrap->heightValue()
-		| rpl::start_with_next([container](int height) {
-			container->resize(container->width(), height);
-		}, photoWrap->lifetime());
-	container->widthValue()
-		| rpl::start_with_next([titleEdit](int width) {
-			auto left = st::editPeerPhotoMargins.left()
-				+ st::defaultUserpicButton.size.width();
-			titleEdit->resizeToWidth(width - left);
-			titleEdit->moveToLeft(left, 0, width);
-		}, titleEdit->lifetime());
+	photoWrap->heightValue(
+	) | rpl::start_with_next([container](int height) {
+		container->resize(container->width(), height);
+	}, photoWrap->lifetime());
+	container->widthValue(
+	) | rpl::start_with_next([titleEdit](int width) {
+		auto left = st::editPeerPhotoMargins.left()
+			+ st::defaultUserpicButton.size.width();
+		titleEdit->resizeToWidth(width - left);
+		titleEdit->moveToLeft(left, 0, width);
+	}, titleEdit->lifetime());
 
 	return result;
 }
@@ -439,16 +439,16 @@ object_ptr<Ui::RpWidget> Controller::createUsernameEdit() {
 			base::lambda<QString()>(),
 			channel->username,
 			true));
-	_controls.username->heightValue()
-		| rpl::start_with_next([placeholder](int height) {
-			placeholder->resize(placeholder->width(), height);
-		}, placeholder->lifetime());
-	placeholder->widthValue()
-		| rpl::start_with_next([this](int width) {
-			_controls.username->resize(
-				width,
-				_controls.username->height());
-		}, placeholder->lifetime());
+	_controls.username->heightValue(
+	) | rpl::start_with_next([placeholder](int height) {
+		placeholder->resize(placeholder->width(), height);
+	}, placeholder->lifetime());
+	placeholder->widthValue(
+	) | rpl::start_with_next([this](int width) {
+		_controls.username->resize(
+			width,
+			_controls.username->height());
+	}, placeholder->lifetime());
 	_controls.username->move(placeholder->pos());
 
 	QObject::connect(
@@ -624,12 +624,12 @@ void Controller::showUsernameResult(
 			*st);
 		auto label = _controls.usernameResult.get();
 		label->show();
-		label->widthValue()
-			| rpl::start_with_next([label] {
-				label->moveToRight(
-					st::editPeerUsernamePosition.x(),
-					st::editPeerUsernamePosition.y());
-			}, label->lifetime());
+		label->widthValue(
+		) | rpl::start_with_next([label] {
+			label->moveToRight(
+				st::editPeerUsernamePosition.x(),
+				st::editPeerUsernamePosition.y());
+		}, label->lifetime());
 	}
 	_usernameResultTexts.fire(std::move(text));
 }
@@ -729,10 +729,10 @@ object_ptr<Ui::RpWidget> Controller::createInviteLinkEdit() {
 
 	Notify::PeerUpdateValue(
 		_peer,
-		Notify::PeerUpdate::Flag::InviteLinkChanged)
-		| rpl::start_with_next([this] {
-			refreshEditInviteLink();
-		}, _controls.editInviteLinkWrap->lifetime());
+		Notify::PeerUpdate::Flag::InviteLinkChanged
+	) | rpl::start_with_next([this] {
+		refreshEditInviteLink();
+	}, _controls.editInviteLinkWrap->lifetime());
 
 	return std::move(result);
 }
@@ -794,10 +794,10 @@ object_ptr<Ui::RpWidget> Controller::createInviteLinkCreate() {
 
 	Notify::PeerUpdateValue(
 		_peer,
-		Notify::PeerUpdate::Flag::InviteLinkChanged)
-		| rpl::start_with_next([this] {
-			refreshCreateInviteLink();
-		}, _controls.createInviteLinkWrap->lifetime());
+		Notify::PeerUpdate::Flag::InviteLinkChanged
+	) | rpl::start_with_next([this] {
+		refreshCreateInviteLink();
+	}, _controls.createInviteLinkWrap->lifetime());
 
 	return std::move(result);
 }
@@ -814,7 +814,8 @@ object_ptr<Ui::RpWidget> Controller::createHistoryVisibilityEdit() {
 	auto channel = _peer->asChannel();
 	if (!channel
 		|| !channel->canEditPreHistoryHidden()
-		|| !channel->isMegagroup()) {
+		|| !channel->isMegagroup()
+		|| (channel->isPublic() && !channel->canEditUsername())) {
 		return nullptr;
 	}
 	auto result = object_ptr<Ui::SlideWrap<Ui::VerticalLayout>>(
@@ -1436,15 +1437,15 @@ EditPeerInfoBox::EditPeerInfoBox(
 
 void EditPeerInfoBox::prepare() {
 	auto controller = std::make_unique<Controller>(this, _peer);
-	_focusRequests.events()
-		| rpl::start_with_next(
-			[c = controller.get()] { c->setFocus(); },
-			lifetime());
+	_focusRequests.events(
+	) | rpl::start_with_next(
+		[c = controller.get()] { c->setFocus(); },
+		lifetime());
 	auto content = controller->createContent();
-	content->heightValue()
-		| rpl::start_with_next([this](int height) {
-			setDimensions(st::boxWideWidth, height);
-		}, content->lifetime());
+	content->heightValue(
+	) | rpl::start_with_next([this](int height) {
+		setDimensions(st::boxWideWidth, height);
+	}, content->lifetime());
 	setInnerWidget(object_ptr<Ui::IgnoreMargins>(
 		this,
 		std::move(content)));

Telegram/SourceFiles/boxes/peers/manage_peer_box.cpp

@@ -85,13 +85,15 @@ void AddButtonWithCount(
 		std::move(count),
 		st::managePeerButtonLabel);
 	label->setAttribute(Qt::WA_TransparentForMouseEvents);
-	rpl::combine(button->widthValue(), label->widthValue())
-		| rpl::start_with_next([label](int outerWidth, int width) {
-			label->moveToRight(
-				st::managePeerButtonLabelPosition.x(),
-				st::managePeerButtonLabelPosition.y(),
-				outerWidth);
-		}, label->lifetime());
+	rpl::combine(
+		button->widthValue(),
+		label->widthValue()
+	) | rpl::start_with_next([label](int outerWidth, int width) {
+		label->moveToRight(
+			st::managePeerButtonLabelPosition.x(),
+			st::managePeerButtonLabelPosition.y(),
+			outerWidth);
+	}, label->lifetime());
 }
 
 bool HasRecentActions(not_null<ChannelData*> channel) {
@@ -102,7 +104,16 @@ void ShowRecentActions(
 		not_null<Window::Controller*> controller,
 		not_null<ChannelData*> channel) {
 	controller->showSection(AdminLog::SectionMemento(channel));
+}
 
+bool HasEditInfoBox(not_null<ChannelData*> channel) {
+	if (channel->canEditInformation()) {
+		return true;
+	} else if (!channel->isPublic() && channel->canAddMembers()) {
+		// Edit invite link.
+		return true;
+	}
+	return false;
 }
 
 void FillManageBox(
@@ -112,7 +123,7 @@ void FillManageBox(
 	using Profile::ParticipantsBoxController;
 
 	auto isGroup = channel->isMegagroup();
-	if (channel->canEditInformation()) {
+	if (HasEditInfoBox(channel)) {
 		AddButton(
 			content,
 			Lang::Viewer(isGroup
@@ -157,18 +168,20 @@ void FillManageBox(
 			st::infoIconAdministrators);
 	}
 	if (channel->canViewBanned()) {
-		AddButtonWithCount(
-			content,
-			Lang::Viewer(lng_manage_peer_restricted_users),
-			Info::Profile::RestrictedCountValue(channel)
-				| ToPositiveNumberString(),
-			[=] {
-				ParticipantsBoxController::Start(
-					controller,
-					channel,
-					ParticipantsBoxController::Role::Restricted);
-			},
-			st::infoIconRestrictedUsers);
+		if (channel->isMegagroup()) {
+			AddButtonWithCount(
+				content,
+				Lang::Viewer(lng_manage_peer_restricted_users),
+				Info::Profile::RestrictedCountValue(channel)
+					| ToPositiveNumberString(),
+				[=] {
+					ParticipantsBoxController::Start(
+						controller,
+						channel,
+						ParticipantsBoxController::Role::Restricted);
+				},
+				st::infoIconRestrictedUsers);
+		}
 		AddButtonWithCount(
 			content,
 			Lang::Viewer(lng_manage_peer_banned_users),
@@ -219,12 +232,12 @@ void ManagePeerBox::prepare() {
 void ManagePeerBox::setupContent() {
 	auto content = Ui::CreateChild<Ui::VerticalLayout>(this);
 	FillManageBox(controller(), _channel, content);
-	widthValue()
-		| rpl::start_with_next([=](int width) {
-			content->resizeToWidth(width);
-		}, content->lifetime());
-	content->heightValue()
-		| rpl::start_with_next([=](int height) {
-			setDimensions(st::boxWidth, height);
-		}, content->lifetime());
+	widthValue(
+	) | rpl::start_with_next([=](int width) {
+		content->resizeToWidth(width);
+	}, content->lifetime());
+	content->heightValue(
+	) | rpl::start_with_next([=](int height) {
+		setDimensions(st::boxWidth, height);
+	}, content->lifetime());
 }

Telegram/SourceFiles/boxes/send_files_box.h

@@ -20,25 +20,40 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 */
 #pragma once
 
+#include <rpl/variable.h>
 #include "boxes/abstract_box.h"
 #include "storage/localimageloader.h"
+#include "storage/storage_media_prepare.h"
 
 namespace Ui {
-class Checkbox;
+template <typename Enum>
+class Radioenum;
+template <typename Enum>
+class RadioenumGroup;
 class RoundButton;
 class InputArea;
-class EmptyUserpic;
+struct GroupMediaLayout;
 } // namespace Ui
 
+enum class SendFilesWay {
+	Album,
+	Photos,
+	Files,
+};
+
 class SendFilesBox : public BoxContent {
-	Q_OBJECT
-
 public:
-	SendFilesBox(QWidget*, QImage image, CompressConfirm compressed);
-	SendFilesBox(QWidget*, const QStringList &files, CompressConfirm compressed);
-	SendFilesBox(QWidget*, const QString &phone, const QString &firstname, const QString &lastname);
+	SendFilesBox(
+		QWidget*,
+		Storage::PreparedList &&list,
+		CompressConfirm compressed);
 
-	void setConfirmedCallback(base::lambda<void(const QStringList &files, const QImage &image, std::unique_ptr<FileLoadTask::MediaInformation> information, bool compressed, const QString &caption, bool ctrlShiftEnter)> callback) {
+	void setConfirmedCallback(
+		base::lambda<void(
+			Storage::PreparedList &&list,
+			SendFilesWay way,
+			const QString &caption,
+			bool ctrlShiftEnter)> callback) {
 		_confirmedCallback = std::move(callback);
 	}
 	void setCancelledCallback(base::lambda<void()> callback) {
@@ -55,116 +70,64 @@ protected:
 	void paintEvent(QPaintEvent *e) override;
 	void resizeEvent(QResizeEvent *e) override;
 
-private slots:
-	void onCompressedChange();
-	void onSend(bool ctrlShiftEnter = false);
-	void onCaptionResized();
-	void onClose() {
-		closeBox();
-	}
-
 private:
-	void prepareSingleFileLayout();
-	void prepareDocumentLayout();
-	void tryToReadSingleFile();
-	void prepareGifPreview();
-	void clipCallback(Media::Clip::Notification notification);
+	class AlbumPreview;
 
-	void updateTitleText();
+	void initSendWay();
+	void initPreview(rpl::producer<int> desiredPreviewHeight);
+
+	void setupControls();
+	void setupSendWayControls();
+	void setupCaption();
+	void setupShadows(
+		not_null<Ui::ScrollArea*> wrap,
+		not_null<AlbumPreview*> content);
+
+	void refreshAlbumMediaCount();
+	void preparePreview();
+	void prepareSingleFilePreview();
+	void prepareAlbumPreview();
+	void applyAlbumOrder();
+
+	void send(bool ctrlShiftEnter = false);
+	void captionResized();
+
+	void setupTitleText();
 	void updateBoxSize();
 	void updateControlsGeometry();
-	base::lambda<QString()> getSendButtonText() const;
+
+	bool canAddFiles(not_null<const QMimeData*> data) const;
+	bool addFiles(not_null<const QMimeData*> data);
 
 	QString _titleText;
-	QStringList _files;
-	QImage _image;
-	std::unique_ptr<FileLoadTask::MediaInformation> _information;
+	int _titleHeight = 0;
 
+	Storage::PreparedList _list;
+
+	CompressConfirm _compressConfirmInitial = CompressConfirm::None;
 	CompressConfirm _compressConfirm = CompressConfirm::None;
-	bool _animated = false;
 
-	QPixmap _preview;
-	int _previewLeft = 0;
-	int _previewWidth = 0;
-	int _previewHeight = 0;
-	Media::Clip::ReaderPointer _gifPreview;
-
-	QPixmap _fileThumb;
-	Text _nameText;
-	bool _fileIsAudio = false;
-	bool _fileIsImage = false;
-	QString _statusText;
-	int _statusWidth = 0;
-
-	QString _contactPhone;
-	QString _contactFirstName;
-	QString _contactLastName;
-	std::unique_ptr<Ui::EmptyUserpic> _contactPhotoEmpty;
-
-	base::lambda<void(const QStringList &files, const QImage &image, std::unique_ptr<FileLoadTask::MediaInformation> information, bool compressed, const QString &caption, bool ctrlShiftEnter)> _confirmedCallback;
+	base::lambda<void(
+		Storage::PreparedList &&list,
+		SendFilesWay way,
+		const QString &caption,
+		bool ctrlShiftEnter)> _confirmedCallback;
 	base::lambda<void()> _cancelledCallback;
 	bool _confirmed = false;
 
 	object_ptr<Ui::InputArea> _caption = { nullptr };
-	object_ptr<Ui::Checkbox> _compressed = { nullptr };
+	object_ptr<Ui::Radioenum<SendFilesWay>> _sendAlbum = { nullptr };
+	object_ptr<Ui::Radioenum<SendFilesWay>> _sendPhotos = { nullptr };
+	object_ptr<Ui::Radioenum<SendFilesWay>> _sendFiles = { nullptr };
+	std::shared_ptr<Ui::RadioenumGroup<SendFilesWay>> _sendWay;
+
+	rpl::variable<int> _footerHeight = 0;
+
+	QWidget *_preview = nullptr;
+	AlbumPreview *_albumPreview = nullptr;
+	int _albumVideosCount = 0;
+	int _albumPhotosCount = 0;
 
 	QPointer<Ui::RoundButton> _send;
 
 };
-
-class EditCaptionBox : public BoxContent, public RPCSender {
-	Q_OBJECT
-
-public:
-	EditCaptionBox(QWidget*, HistoryMedia *media, FullMsgId msgId);
-
-public slots:
-	void onCaptionResized();
-	void onSave(bool ctrlShiftEnter = false);
-	void onClose() {
-		closeBox();
-	}
-
-protected:
-	void prepare() override;
-	void setInnerFocus() override;
-
-	void paintEvent(QPaintEvent *e) override;
-	void resizeEvent(QResizeEvent *e) override;
-
-private:
-	void updateBoxSize();
-	void prepareGifPreview(DocumentData *document);
-	void clipCallback(Media::Clip::Notification notification);
-
-	void saveDone(const MTPUpdates &updates);
-	bool saveFail(const RPCError &error);
-
-	int errorTopSkip() const;
-
-	FullMsgId _msgId;
-	bool _animated = false;
-	bool _photo = false;
-	bool _doc = false;
-
-	QPixmap _thumb;
-	Media::Clip::ReaderPointer _gifPreview;
-
-	object_ptr<Ui::InputArea> _field = { nullptr };
-
-	int _thumbx = 0;
-	int _thumby = 0;
-	int _thumbw = 0;
-	int _thumbh = 0;
-	Text _name;
-	QString _status;
-	int _statusw = 0;
-	bool _isAudio = false;
-	bool _isImage = false;
-
-	bool _previewCancelled = false;
-	mtpRequestId _saveRequestId = 0;
-
-	QString _error;
-
-};

Telegram/SourceFiles/boxes/share_box.cpp

@@ -33,10 +33,11 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "apiwrap.h"
 #include "ui/toast/toast.h"
 #include "ui/widgets/multi_select.h"
-#include "history/history_media_types.h"
-#include "history/history_message.h"
 #include "ui/widgets/buttons.h"
 #include "ui/widgets/scroll_area.h"
+#include "ui/text_options.h"
+#include "history/history_media_types.h"
+#include "history/history_message.h"
 #include "window/themes/window_theme.h"
 #include "boxes/peer_list_box.h"
 #include "auth_session.h"
@@ -52,7 +53,7 @@ ShareBox::ShareBox(QWidget*, CopyCallback &&copyCallback, SubmitCallback &&submi
 
 void ShareBox::prepare() {
 	_select->resizeToWidth(st::boxWideWidth);
-	myEnsureResized(_select);
+	Ui::SendPendingMoveResizeEvents(_select);
 
 	setTitle(langFactory(lng_share_title));
 
@@ -377,7 +378,7 @@ void ShareBox::Inner::updateChatName(
 		not_null<Chat*> chat,
 		not_null<PeerData*> peer) {
 	const auto text = peer->isSelf() ? lang(lng_saved_messages) : peer->name;
-	chat->name.setText(st::shareNameStyle, text, _textNameOptions);
+	chat->name.setText(st::shareNameStyle, text, Ui::NameTextOptions());
 }
 
 void ShareBox::Inner::repaintChatAtIndex(int index) {

Telegram/SourceFiles/boxes/sticker_set_box.cpp

@@ -50,21 +50,21 @@ void StickerSetBox::prepare() {
 	setTitle(langFactory(lng_contacts_loading));
 
 	_inner = setInnerWidget(object_ptr<Inner>(this, _set), st::stickersScroll);
-	Auth().data().stickersUpdated()
-		| rpl::start_with_next(
-			[this] { updateButtons(); },
-			lifetime());
+	Auth().data().stickersUpdated(
+	) | rpl::start_with_next(
+		[this] { updateButtons(); },
+		lifetime());
 
 	setDimensions(st::boxWideWidth, st::stickersMaxHeight);
 
 	onUpdateButtons();
 
 	connect(_inner, SIGNAL(updateButtons()), this, SLOT(onUpdateButtons()));
-	_inner->setInstalled()
-		| rpl::start_with_next([this](auto &&setId) {
-			Auth().api().stickerSetInstalled(setId);
-			this->closeBox();
-		}, lifetime());
+	_inner->setInstalled(
+	) | rpl::start_with_next([this](auto &&setId) {
+		Auth().api().stickerSetInstalled(setId);
+		this->closeBox();
+	}, lifetime());
 }
 
 void StickerSetBox::onAddStickers() {

Telegram/SourceFiles/boxes/stickers_box.cpp

@@ -90,11 +90,11 @@ StickersBox::CounterWidget::CounterWidget(QWidget *parent)
 	_st.padding = st::stickersFeaturedBadgePadding;
 	_st.font = st::stickersFeaturedBadgeFont;
 
-	Auth().data().featuredStickerSetsUnreadCountValue()
-		| rpl::start_with_next([this](int count) {
-			setCounter(count);
-			update();
-		}, lifetime());
+	Auth().data().featuredStickerSetsUnreadCountValue(
+	) | rpl::start_with_next([this](int count) {
+		setCounter(count);
+		update();
+	}, lifetime());
 }
 
 void StickersBox::CounterWidget::setCounter(int counter) {
@@ -242,10 +242,10 @@ void StickersBox::prepare() {
 			preloadArchivedSets();
 		}
 		setNoContentMargin(true);
-		_tabs->sectionActivated()
-			| rpl::start_with_next(
-				[this] { switchTab(); },
-				lifetime());
+		_tabs->sectionActivated(
+		) | rpl::start_with_next(
+			[this] { switchTab(); },
+			lifetime());
 		refreshTabs();
 	}
 	if (_installed.widget() && _section != Section::Installed) _installed.widget()->hide();
@@ -277,10 +277,10 @@ void StickersBox::prepare() {
 	setInnerWidget(_tab->takeWidget(), getTopSkip());
 	setDimensions(st::boxWideWidth, st::boxMaxListHeight);
 
-	Auth().data().stickersUpdated()
-		| rpl::start_with_next(
-			[this] { handleStickersUpdated(); },
-			lifetime());
+	Auth().data().stickersUpdated(
+	) | rpl::start_with_next(
+		[this] { handleStickersUpdated(); },
+		lifetime());
 	Auth().api().updateStickers();
 
 	if (_installed.widget()) {
@@ -1551,13 +1551,13 @@ int StickersBox::Inner::fillSetCount(const Stickers::Set &set) const {
 		auto customIt = Auth().data().stickerSets().constFind(Stickers::CustomSetId);
 		if (customIt != Auth().data().stickerSets().cend()) {
 			added = customIt->stickers.size();
-			for_const (auto &sticker, cGetRecentStickers()) {
+			for_const (auto &sticker, Stickers::GetRecentPack()) {
 				if (customIt->stickers.indexOf(sticker.first) < 0) {
 					++added;
 				}
 			}
 		} else {
-			added = cGetRecentStickers().size();
+			added = Stickers::GetRecentPack().size();
 		}
 	}
 	return result + added;

Telegram/SourceFiles/calls/calls_box_controller.cpp

@@ -214,19 +214,19 @@ void BoxController::Row::stopLastActionRipple() {
 }
 
 void BoxController::prepare() {
-	Auth().data().itemRemoved()
-		| rpl::start_with_next([this](auto item) {
-			if (auto row = rowForItem(item)) {
-				row->itemRemoved(item);
-				if (!row->hasItems()) {
-					delegate()->peerListRemoveRow(row);
-					if (!delegate()->peerListFullRowsCount()) {
-						refreshAbout();
-					}
+	Auth().data().itemRemoved(
+	) | rpl::start_with_next([this](auto item) {
+		if (auto row = rowForItem(item)) {
+			row->itemRemoved(item);
+			if (!row->hasItems()) {
+				delegate()->peerListRemoveRow(row);
+				if (!delegate()->peerListFullRowsCount()) {
+					refreshAbout();
 				}
-				delegate()->peerListRefreshRows();
 			}
-		}, lifetime());
+			delegate()->peerListRefreshRows();
+		}
+	}, lifetime());
 	subscribe(Current().newServiceMessage(), [this](const FullMsgId &msgId) {
 		if (auto item = App::histItemById(msgId)) {
 			insertRow(item, InsertWay::Prepend);

Telegram/SourceFiles/calls/calls_panel.cpp

@@ -365,10 +365,12 @@ void Panel::initLayout() {
 
 	initGeometry();
 
-	Notify::PeerUpdateValue(_user, Notify::PeerUpdate::Flag::PhotoChanged)
-		| rpl::start_with_next(
-			[this] { processUserPhoto(); },
-			lifetime());
+	Notify::PeerUpdateValue(
+		_user,
+		Notify::PeerUpdate::Flag::PhotoChanged
+	) | rpl::start_with_next(
+		[this] { processUserPhoto(); },
+		lifetime());
 	subscribe(Auth().downloaderTaskFinished(), [this] {
 		refreshUserPhoto();
 	});
@@ -386,10 +388,15 @@ void Panel::toggleOpacityAnimation(bool visible) {
 	if (_useTransparency) {
 		if (_animationCache.isNull()) {
 			showControls();
-			_animationCache = myGrab(this);
+			_animationCache = Ui::GrabWidget(this);
 			hideChildren();
 		}
-		_opacityAnimation.start([this] { update(); }, _visible ? 0. : 1., _visible ? 1. : 0., st::callPanelDuration, _visible ? anim::easeOutCirc : anim::easeInCirc);
+		_opacityAnimation.start(
+			[this] { update(); },
+			_visible ? 0. : 1.,
+			_visible ? 1. : 0.,
+			st::callPanelDuration,
+			_visible ? anim::easeOutCirc : anim::easeInCirc);
 	}
 	if (isHidden() && _visible) {
 		show();
@@ -490,7 +497,7 @@ void Panel::createUserpicCache(ImagePtr image) {
 				_user->name
 			).paintSquare(p, 0, 0, st::callWidth, st::callWidth);
 		}
-		Images::prepareRound(filled, ImageRoundRadius::Large, ImageRoundCorner::TopLeft | ImageRoundCorner::TopRight);
+		Images::prepareRound(filled, ImageRoundRadius::Large, RectPart::TopLeft | RectPart::TopRight);
 		_userPhoto = App::pixmapFromImageInPlace(std::move(filled));
 	}
 	refreshCacheImageUserPhoto();

Telegram/SourceFiles/chat_helpers/bot_keyboard.cpp

@@ -20,9 +20,91 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 */
 #include "chat_helpers/bot_keyboard.h"
 
+#include "history/history_item_components.h"
 #include "styles/style_widgets.h"
 #include "styles/style_history.h"
 
+namespace {
+
+class Style : public ReplyKeyboard::Style {
+public:
+	Style(
+		not_null<BotKeyboard*> parent,
+		const style::BotKeyboardButton &st);
+
+	int buttonRadius() const override;
+
+	void startPaint(Painter &p) const override;
+	const style::TextStyle &textStyle() const override;
+	void repaint(not_null<const HistoryItem*> item) const override;
+
+protected:
+	void paintButtonBg(
+		Painter &p,
+		const QRect &rect,
+		float64 howMuchOver) const override;
+	void paintButtonIcon(
+		Painter &p,
+		const QRect &rect,
+		int outerWidth,
+		HistoryMessageMarkupButton::Type type) const override;
+	void paintButtonLoading(Painter &p, const QRect &rect) const override;
+	int minButtonWidth(HistoryMessageMarkupButton::Type type) const override;
+
+private:
+	not_null<BotKeyboard*> _parent;
+
+};
+
+Style::Style(
+	not_null<BotKeyboard*> parent,
+	const style::BotKeyboardButton &st)
+: ReplyKeyboard::Style(st), _parent(parent) {
+}
+
+void Style::startPaint(Painter &p) const {
+	p.setPen(st::botKbColor);
+	p.setFont(st::botKbStyle.font);
+}
+
+const style::TextStyle &Style::textStyle() const {
+	return st::botKbStyle;
+}
+
+void Style::repaint(not_null<const HistoryItem*> item) const {
+	_parent->update();
+}
+
+int Style::buttonRadius() const {
+	return st::buttonRadius;
+}
+
+void Style::paintButtonBg(
+		Painter &p,
+		const QRect &rect,
+		float64 howMuchOver) const {
+	App::roundRect(p, rect, st::botKbBg, BotKeyboardCorners);
+}
+
+void Style::paintButtonIcon(
+		Painter &p,
+		const QRect &rect,
+		int outerWidth,
+		HistoryMessageMarkupButton::Type type) const {
+	// Buttons with icons should not appear here.
+}
+
+void Style::paintButtonLoading(Painter &p, const QRect &rect) const {
+	// Buttons with loading progress should not appear here.
+}
+
+int Style::minButtonWidth(HistoryMessageMarkupButton::Type type) const {
+	int result = 2 * buttonPadding();
+	return result;
+}
+
+} // namespace
+
 BotKeyboard::BotKeyboard(QWidget *parent) : TWidget(parent)
 , _st(&st::botKbButton) {
 	setGeometry(0, 0, _st->margin, st::botKbScroll.deltat);
@@ -43,40 +125,6 @@ void BotKeyboard::paintEvent(QPaintEvent *e) {
 	}
 }
 
-void BotKeyboard::Style::startPaint(Painter &p) const {
-	p.setPen(st::botKbColor);
-	p.setFont(st::botKbStyle.font);
-}
-
-const style::TextStyle &BotKeyboard::Style::textStyle() const {
-	return st::botKbStyle;
-}
-
-void BotKeyboard::Style::repaint(not_null<const HistoryItem*> item) const {
-	_parent->update();
-}
-
-int BotKeyboard::Style::buttonRadius() const {
-	return st::buttonRadius;
-}
-
-void BotKeyboard::Style::paintButtonBg(Painter &p, const QRect &rect, float64 howMuchOver) const {
-	App::roundRect(p, rect, st::botKbBg, BotKeyboardCorners);
-}
-
-void BotKeyboard::Style::paintButtonIcon(Painter &p, const QRect &rect, int outerWidth, HistoryMessageReplyMarkup::Button::Type type) const {
-	// Buttons with icons should not appear here.
-}
-
-void BotKeyboard::Style::paintButtonLoading(Painter &p, const QRect &rect) const {
-	// Buttons with loading progress should not appear here.
-}
-
-int BotKeyboard::Style::minButtonWidth(HistoryMessageReplyMarkup::Button::Type type) const {
-	int result = 2 * buttonPadding();
-	return result;
-}
-
 void BotKeyboard::mousePressEvent(QMouseEvent *e) {
 	_lastMousePos = e->globalPos();
 	updateSelected();
@@ -108,16 +156,18 @@ void BotKeyboard::leaveEventHook(QEvent *e) {
 }
 
 bool BotKeyboard::moderateKeyActivate(int key) {
-	if (auto item = App::histItemById(_wasForMsgId)) {
-		if (auto markup = item->Get<HistoryMessageReplyMarkup>()) {
+	if (const auto item = App::histItemById(_wasForMsgId)) {
+		if (const auto markup = item->Get<HistoryMessageReplyMarkup>()) {
 			if (key >= Qt::Key_1 && key <= Qt::Key_9) {
-				int index = (key - Qt::Key_1);
-				if (!markup->rows.isEmpty() && index >= 0 && index < markup->rows.front().size()) {
+				const auto index = int(key - Qt::Key_1);
+				if (!markup->rows.empty()
+					&& index >= 0
+					&& index < int(markup->rows.front().size())) {
 					App::activateBotCommand(item, 0, index);
 					return true;
 				}
 			} else if (key == Qt::Key_Q) {
-				if (auto user = item->history()->peer->asUser()) {
+				if (const auto user = item->history()->peer->asUser()) {
 					if (user->botInfo && item->from() == user) {
 						App::sendBotCommand(user, user, qsl("/translate"));
 						return true;
@@ -163,8 +213,10 @@ bool BotKeyboard::updateMarkup(HistoryItem *to, bool force) {
 
 	_impl = nullptr;
 	if (auto markup = to->Get<HistoryMessageReplyMarkup>()) {
-		if (!markup->rows.isEmpty()) {
-			_impl.reset(new ReplyKeyboard(to, std::make_unique<Style>(this, *_st)));
+		if (!markup->rows.empty()) {
+			_impl = std::make_unique<ReplyKeyboard>(
+				to,
+				std::make_unique<Style>(this, *_st));
 		}
 	}
 
@@ -246,3 +298,5 @@ void BotKeyboard::updateSelected() {
 		setCursor(link ? style::cur_pointer : style::cur_default);
 	}
 }
+
+BotKeyboard::~BotKeyboard() = default;

Telegram/SourceFiles/chat_helpers/bot_keyboard.h

@@ -22,7 +22,12 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 
 #include "ui/widgets/tooltip.h"
 
-class BotKeyboard : public TWidget, public Ui::AbstractTooltipShower, public ClickHandlerHost {
+class ReplyKeyboard;
+
+class BotKeyboard
+	: public TWidget
+	, public Ui::AbstractTooltipShower
+	, public ClickHandlerHost {
 	Q_OBJECT
 
 public:
@@ -57,6 +62,8 @@ public:
 	void clickHandlerActiveChanged(const ClickHandlerPtr &p, bool active) override;
 	void clickHandlerPressedChanged(const ClickHandlerPtr &p, bool pressed) override;
 
+	~BotKeyboard();
+
 protected:
 	int resizeGetHeight(int newWidth) override;
 
@@ -83,27 +90,6 @@ private:
 	QPoint _lastMousePos;
 	std::unique_ptr<ReplyKeyboard> _impl;
 
-	class Style : public ReplyKeyboard::Style {
-	public:
-		Style(BotKeyboard *parent, const style::BotKeyboardButton &st) : ReplyKeyboard::Style(st), _parent(parent) {
-		}
-
-		int buttonRadius() const override;
-
-		void startPaint(Painter &p) const override;
-		const style::TextStyle &textStyle() const override;
-		void repaint(not_null<const HistoryItem*> item) const override;
-
-	protected:
-		void paintButtonBg(Painter &p, const QRect &rect, float64 howMuchOver) const override;
-		void paintButtonIcon(Painter &p, const QRect &rect, int outerWidth, HistoryMessageReplyMarkup::Button::Type type) const override;
-		void paintButtonLoading(Painter &p, const QRect &rect) const override;
-		int minButtonWidth(HistoryMessageReplyMarkup::Button::Type type) const override;
-
-	private:
-		BotKeyboard *_parent;
-
-	};
 	const style::BotKeyboardButton *_st = nullptr;
 
 };

Telegram/SourceFiles/chat_helpers/emoji_list_widget.cpp

@@ -250,7 +250,7 @@ void EmojiColorPicker::hideFast() {
 
 void EmojiColorPicker::hideAnimated() {
 	if (_cache.isNull()) {
-		_cache = myGrab(this);
+		_cache = Ui::GrabWidget(this);
 		clearSelection();
 	}
 	_hiding = true;
@@ -265,7 +265,7 @@ void EmojiColorPicker::showAnimated() {
 	}
 	_hiding = false;
 	if (_cache.isNull()) {
-		_cache = myGrab(this);
+		_cache = Ui::GrabWidget(this);
 		clearSelection();
 	}
 	show();

Telegram/SourceFiles/chat_helpers/field_autocomplete.cpp

@@ -21,6 +21,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "chat_helpers/field_autocomplete.h"
 
 #include "data/data_document.h"
+#include "data/data_peer_values.h"
 #include "mainwindow.h"
 #include "apiwrap.h"
 #include "storage/localstorage.h"
@@ -191,7 +192,10 @@ void FieldAutocomplete::updateFiltered(bool resetScroll) {
 			}
 		}
 		if (_chat) {
-			QMultiMap<int32, UserData*> ordered;
+			auto ordered = QMultiMap<TimeId, not_null<UserData*>>();
+			const auto byOnline = [&](not_null<UserData*> user) {
+				return Data::SortByOnlineValue(user, now);
+			};
 			mrows.reserve(mrows.size() + (_chat->participants.empty() ? _chat->lastAuthors.size() : _chat->participants.size()));
 			if (_chat->noParticipantInfo()) {
 				Auth().api().requestFullPeer(_chat);
@@ -200,7 +204,7 @@ void FieldAutocomplete::updateFiltered(bool resetScroll) {
 					if (user->isInaccessible()) continue;
 					if (!listAllSuggestions && filterNotPassedByName(user)) continue;
 					if (indexOfInFirstN(mrows, user, recentInlineBots) >= 0) continue;
-					ordered.insertMulti(App::onlineForSort(user, now), user);
+					ordered.insertMulti(byOnline(user), user);
 				}
 			}
 			for (const auto user : _chat->lastAuthors) {
@@ -209,7 +213,7 @@ void FieldAutocomplete::updateFiltered(bool resetScroll) {
 				if (indexOfInFirstN(mrows, user, recentInlineBots) >= 0) continue;
 				mrows.push_back(user);
 				if (!ordered.isEmpty()) {
-					ordered.remove(App::onlineForSort(user, now), user);
+					ordered.remove(byOnline(user), user);
 				}
 			}
 			if (!ordered.isEmpty()) {
@@ -404,7 +408,7 @@ void FieldAutocomplete::hideAnimated() {
 
 	if (_cache.isNull()) {
 		_scroll->show();
-		_cache = myGrab(this);
+		_cache = Ui::GrabWidget(this);
 	}
 	_scroll->hide();
 	_hiding = true;
@@ -425,7 +429,7 @@ void FieldAutocomplete::showAnimated() {
 	}
 	if (_cache.isNull()) {
 		_scroll->show();
-		_cache = myGrab(this);
+		_cache = Ui::GrabWidget(this);
 	}
 	_scroll->hide();
 	_hiding = false;

Telegram/SourceFiles/chat_helpers/gifs_list_widget.cpp

@@ -148,10 +148,10 @@ GifsListWidget::GifsListWidget(
 	_inlineRequestTimer.setSingleShot(true);
 	connect(&_inlineRequestTimer, &QTimer::timeout, this, [this] { sendInlineRequest(); });
 
-	Auth().data().savedGifsUpdated()
-		| rpl::start_with_next([this] {
-			refreshSavedGifs();
-		}, lifetime());
+	Auth().data().savedGifsUpdated(
+	) | rpl::start_with_next([this] {
+		refreshSavedGifs();
+	}, lifetime());
 	subscribe(Auth().downloaderTaskFinished(), [this] {
 		update();
 	});
@@ -335,7 +335,7 @@ void GifsListWidget::mouseReleaseEvent(QMouseEvent *e) {
 		return;
 	}
 
-	if (dynamic_cast<InlineBots::Layout::SendClickHandler*>(activated.data())) {
+	if (dynamic_cast<InlineBots::Layout::SendClickHandler*>(activated.get())) {
 		int row = _selected / MatrixRowShift, column = _selected % MatrixRowShift;
 		selectInlineResult(row, column);
 	} else {
@@ -596,12 +596,13 @@ void GifsListWidget::layoutInlineRow(Row &row, int fullWidth) {
 	row.height = 0;
 	int availw = fullWidth - (st::inlineResultsLeft - st::buttonRadius);
 	for (int i = 0; i < count; ++i) {
-		int index = indices[i];
-		int w = desiredWidth
-			? (row.items[index]->maxWidth() * availw / desiredWidth)
-			: row.items[index]->maxWidth();
-		int actualw = qMax(w, int(st::inlineResultsMinWidth));
-		row.height = qMax(row.height, row.items[index]->resizeGetHeight(actualw));
+		const auto index = indices[i];
+		const auto &item = row.items[index];
+		const auto w = desiredWidth
+			? (item->maxWidth() * availw / desiredWidth)
+			: item->maxWidth();
+		auto actualw = qMax(w, st::inlineResultsMinWidth);
+		row.height = qMax(row.height, item->resizeGetHeight(actualw));
 		if (desiredWidth) {
 			availw -= actualw;
 			desiredWidth -= row.items[index]->maxWidth();

Telegram/SourceFiles/chat_helpers/stickers.cpp

@@ -347,7 +347,7 @@ void SetsReceived(const QVector<MTPStickerSet> &data, int32 hash) {
 		}
 	}
 	auto writeRecent = false;
-	auto &recent = cGetRecentStickers();
+	auto &recent = GetRecentPack();
 	for (auto it = sets.begin(), e = sets.end(); it != e;) {
 		bool installed = (it->flags & MTPDstickerSet::Flag::f_installed);
 		bool featured = (it->flags & MTPDstickerSet_ClientFlag::f_featured);
@@ -449,7 +449,7 @@ void SpecialSetReceived(uint64 setId, const QString &setTitle, const QVector<MTP
 		}
 
 		auto writeRecent = false;
-		auto &recent = cGetRecentStickers();
+		auto &recent = GetRecentPack();
 		for (auto i = recent.begin(); i != recent.cend();) {
 			if (it->stickers.indexOf(i->first) >= 0 && pack.indexOf(i->first) < 0) {
 				i = recent.erase(i);
@@ -748,7 +748,7 @@ Set *FeedSetFull(const MTPmessages_StickerSet &data) {
 	}
 
 	auto writeRecent = false;
-	auto &recent = cGetRecentStickers();
+	auto &recent = GetRecentPack();
 	for (auto i = recent.begin(); i != recent.cend();) {
 		if (set->stickers.indexOf(i->first) >= 0 && pack.indexOf(i->first) < 0) {
 			i = recent.erase(i);
@@ -816,4 +816,56 @@ QString GetSetTitle(const MTPDstickerSet &s) {
 	return title;
 }
 
+RecentStickerPack &GetRecentPack() {
+	if (cRecentStickers().isEmpty() && !cRecentStickersPreload().isEmpty()) {
+		const auto p = cRecentStickersPreload();
+		cSetRecentStickersPreload(RecentStickerPreload());
+
+		auto &recent = cRefRecentStickers();
+		recent.reserve(p.size());
+		for (const auto &preloaded : p) {
+			const auto document = App::document(preloaded.first);
+			if (!document || !document->sticker()) continue;
+
+			recent.push_back(qMakePair(document, preloaded.second));
+		}
+	}
+	return cRefRecentStickers();
+}
+
+void IncrementRecentHashtag(RecentHashtagPack &recent, const QString &tag) {
+	auto i = recent.begin(), e = recent.end();
+	for (; i != e; ++i) {
+		if (i->first == tag) {
+			++i->second;
+			if (qAbs(i->second) > 0x4000) {
+				for (auto j = recent.begin(); j != e; ++j) {
+					if (j->second > 1) {
+						j->second /= 2;
+					} else if (j->second > 0) {
+						j->second = 1;
+					}
+				}
+			}
+			for (; i != recent.begin(); --i) {
+				if (qAbs((i - 1)->second) > qAbs(i->second)) {
+					break;
+				}
+				qSwap(*i, *(i - 1));
+			}
+			break;
+		}
+	}
+	if (i == e) {
+		while (recent.size() >= 64) recent.pop_back();
+		recent.push_back(qMakePair(tag, 1));
+		for (i = recent.end() - 1; i != recent.begin(); --i) {
+			if ((i - 1)->second > i->second) {
+				break;
+			}
+			qSwap(*i, *(i - 1));
+		}
+	}
+}
+
 } // namespace Stickers

Telegram/SourceFiles/chat_helpers/stickers.h

@@ -85,4 +85,8 @@ Set *FeedSetFull(const MTPmessages_StickerSet &data);
 
 QString GetSetTitle(const MTPDstickerSet &s);
 
+RecentStickerPack &GetRecentPack();
+
+void IncrementRecentHashtag(RecentHashtagPack &recent, const QString &tag);
+
 } // namespace Stickers

Telegram/SourceFiles/chat_helpers/stickers_list_widget.cpp

@@ -113,6 +113,23 @@ private:
 
 };
 
+StickersListWidget::Set::Set(
+	uint64 id,
+	MTPDstickerSet::Flags flags,
+	const QString &title,
+	int hoversSize,
+	const Stickers::Pack &pack)
+: id(id)
+, flags(flags)
+, title(title)
+, pack(pack) {
+}
+
+StickersListWidget::Set::Set(Set &&other) = default;
+StickersListWidget::Set &StickersListWidget::Set::operator=(
+	Set &&other) = default;
+StickersListWidget::Set::~Set() = default;
+
 StickersListWidget::Footer::Footer(not_null<StickersListWidget*> parent) : InnerFooter(parent)
 , _pan(parent)
 , _a_icons(animation(this, &Footer::step_icons)) {
@@ -605,10 +622,12 @@ int StickersListWidget::countDesiredHeight(int newWidth) {
 	auto minimalLastHeight = (visibleHeight - st::stickerPanPadding);
 	auto countResult = [this, minimalLastHeight] {
 		if (_section == Section::Featured) {
-			return st::stickerPanPadding + shownSets().size() * featuredRowHeight();
+			return st::stickerPanPadding
+				+ int(shownSets().size()) * featuredRowHeight();
 		} else if (!shownSets().empty()) {
-			auto info = sectionInfo(shownSets().size() - 1);
-			return info.top + qMax(info.rowsBottom - info.top, minimalLastHeight);
+			const auto info = sectionInfo(shownSets().size() - 1);
+			return info.top
+				+ qMax(info.rowsBottom - info.top, minimalLastHeight);
 		}
 		return 0;
 	};
@@ -679,7 +698,7 @@ void StickersListWidget::paintFeaturedStickers(Painter &p, QRect clip) {
 
 	auto tilly = st::stickerPanPadding;
 	auto ms = getms();
-	for (auto c = 0, l = sets.size(); c != l; ++c) {
+	for (auto c = 0, l = int(sets.size()); c != l; ++c) {
 		auto y = tilly;
 		auto &set = sets[c];
 		tilly = y + featuredRowHeight();
@@ -1005,19 +1024,21 @@ QRect StickersListWidget::megagroupSetButtonRectFinal() const {
 	return result;
 }
 
-QSharedPointer<Ui::RippleAnimation> StickersListWidget::createButtonRipple(int section) {
+std::unique_ptr<Ui::RippleAnimation> StickersListWidget::createButtonRipple(int section) {
 	if (_section == Section::Featured) {
 		auto maskSize = QSize(_addWidth - st::stickersTrendingAdd.width, st::stickersTrendingAdd.height);
 		auto mask = Ui::RippleAnimation::roundRectMask(maskSize, st::buttonRadius);
-		return MakeShared<Ui::RippleAnimation>(st::stickersTrendingAdd.ripple, std::move(mask), [this, section] {
-			rtlupdate(featuredAddRect(section));
-		});
+		return std::make_unique<Ui::RippleAnimation>(
+			st::stickersTrendingAdd.ripple,
+			std::move(mask),
+			[this, section] { rtlupdate(featuredAddRect(section)); });
 	}
 	auto maskSize = QSize(st::stickerPanRemoveSet.rippleAreaSize, st::stickerPanRemoveSet.rippleAreaSize);
 	auto mask = Ui::RippleAnimation::ellipseMask(maskSize);
-	return MakeShared<Ui::RippleAnimation>(st::stickerPanRemoveSet.ripple, std::move(mask), [this, section] {
-		rtlupdate(removeButtonRect(section));
-	});
+	return std::make_unique<Ui::RippleAnimation>(
+		st::stickerPanRemoveSet.ripple,
+		std::move(mask),
+		[this, section] { rtlupdate(removeButtonRect(section)); });
 }
 
 QPoint StickersListWidget::buttonRippleTopLeft(int section) const {
@@ -1083,14 +1104,16 @@ void StickersListWidget::mouseReleaseEvent(QMouseEvent *e) {
 }
 
 void StickersListWidget::removeRecentSticker(int section, int index) {
-	if (_section != Section::Stickers || section >= _mySets.size() || _mySets[section].id != Stickers::RecentSetId) {
+	if ((_section != Section::Stickers)
+		|| (section >= int(_mySets.size()))
+		|| (_mySets[section].id != Stickers::RecentSetId)) {
 		return;
 	}
 
 	clearSelection();
 	bool refresh = false;
 	auto sticker = _mySets[section].pack[index];
-	auto &recent = cGetRecentStickers();
+	auto &recent = Stickers::GetRecentPack();
 	for (int32 i = 0, l = recent.size(); i < l; ++i) {
 		if (recent.at(i).first == sticker) {
 			recent.removeAt(i);
@@ -1122,7 +1145,9 @@ void StickersListWidget::removeRecentSticker(int section, int index) {
 }
 
 void StickersListWidget::removeFavedSticker(int section, int index) {
-	if (_section != Section::Stickers || section >= _mySets.size() || _mySets[section].id != Stickers::FavedSetId) {
+	if ((_section != Section::Stickers)
+		|| (section >= int(_mySets.size()))
+		|| (_mySets[section].id != Stickers::FavedSetId)) {
 		return;
 	}
 
@@ -1229,8 +1254,7 @@ void StickersListWidget::refreshStickers() {
 }
 
 void StickersListWidget::refreshSettingsVisibility() {
-	auto visible = (_section == Section::Stickers)
-		&& _mySets.isEmpty();
+	const auto visible = (_section == Section::Stickers) && _mySets.empty();
 	_settings->setVisible(visible);
 }
 
@@ -1251,7 +1275,7 @@ void StickersListWidget::preloadImages() {
 		for (int j = 0; j != count; ++j) {
 			if (++k > _columnCount * (_columnCount + 1)) break;
 
-			auto sticker = sets.at(i).pack.at(j);
+			auto sticker = sets[i].pack.at(j);
 			if (!sticker || !sticker->sticker()) continue;
 
 			bool goodThumb = !sticker->thumb->isNull() && ((sticker->thumb->width() >= 128) || (sticker->thumb->height() >= 128));
@@ -1272,10 +1296,15 @@ uint64 StickersListWidget::currentSet(int yOffset) const {
 	if (_section == Section::Featured) {
 		return Stickers::FeaturedSetId;
 	}
-	return _mySets.isEmpty() ? Stickers::RecentSetId : _mySets[sectionInfoByOffset(yOffset).section].id;
+	return _mySets.empty()
+		? Stickers::RecentSetId
+		: _mySets[sectionInfoByOffset(yOffset).section].id;
 }
 
-void StickersListWidget::appendSet(Sets &to, uint64 setId, AppendSkip skip) {
+void StickersListWidget::appendSet(
+		std::vector<Set> &to,
+		uint64 setId,
+		AppendSkip skip) {
 	auto &sets = Auth().data().stickerSets();
 	auto it = sets.constFind(setId);
 	if (it == sets.cend() || it->stickers.isEmpty()) return;
@@ -1302,7 +1331,7 @@ void StickersListWidget::refreshRecentStickers(bool performResize) {
 	_custom.clear();
 	clearSelection();
 	auto &sets = Auth().data().stickerSets();
-	auto &recent = cGetRecentStickers();
+	auto &recent = Stickers::GetRecentPack();
 	auto customIt = sets.constFind(Stickers::CustomSetId);
 	auto cloudIt = sets.constFind(Stickers::CloudRecentSetId);
 
@@ -1423,7 +1452,7 @@ void StickersListWidget::refreshMegagroupStickers(GroupStickersPlace place) {
 void StickersListWidget::fillIcons(QList<StickerIcon> &icons) {
 	icons.clear();
 	icons.reserve(_mySets.size() + 1);
-	if (Auth().data().featuredStickerSetsUnreadCount() && !_featuredSets.isEmpty()) {
+	if (Auth().data().featuredStickerSetsUnreadCount() && !_featuredSets.empty()) {
 		icons.push_back(StickerIcon(Stickers::FeaturedSetId));
 	}
 
@@ -1457,7 +1486,8 @@ void StickersListWidget::fillIcons(QList<StickerIcon> &icons) {
 		icons.push_back(StickerIcon(_mySets[i].id, s, pixw, pixh));
 	}
 
-	if (!Auth().data().featuredStickerSetsUnreadCount() && !_featuredSets.isEmpty()) {
+	if (!Auth().data().featuredStickerSetsUnreadCount()
+		&& !_featuredSets.empty()) {
 		icons.push_back(StickerIcon(Stickers::FeaturedSetId));
 	}
 }
@@ -1773,7 +1803,7 @@ void StickersListWidget::removeSet(uint64 setId) {
 					request(MTPmessages_UninstallStickerSet(MTP_inputStickerSetShortName(MTP_string(it->shortName)))).send();
 				}
 				auto writeRecent = false;
-				auto &recent = cGetRecentStickers();
+				auto &recent = Stickers::GetRecentPack();
 				for (auto i = recent.begin(); i != recent.cend();) {
 					if (it->stickers.indexOf(i->first) >= 0) {
 						i = recent.erase(i);

Telegram/SourceFiles/chat_helpers/stickers_list_widget.h

@@ -138,15 +138,22 @@ private:
 	};
 
 	struct Set {
-		Set(uint64 id, MTPDstickerSet::Flags flags, const QString &title, int32 hoversSize, const Stickers::Pack &pack = Stickers::Pack()) : id(id), flags(flags), title(title), pack(pack) {
-		}
+		Set(
+			uint64 id,
+			MTPDstickerSet::Flags flags,
+			const QString &title,
+			int hoversSize,
+			const Stickers::Pack &pack = Stickers::Pack());
+		Set(Set &&other);
+		Set &operator=(Set &&other);
+		~Set();
+
 		uint64 id;
 		MTPDstickerSet::Flags flags;
 		QString title;
 		Stickers::Pack pack;
-		QSharedPointer<Ui::RippleAnimation> ripple;
+		std::unique_ptr<Ui::RippleAnimation> ripple;
 	};
-	using Sets = QList<Set>;
 
 	template <typename Callback>
 	bool enumerateSections(Callback callback) const;
@@ -172,7 +179,7 @@ private:
 	void updateSelected();
 	void setSelected(OverState newSelected);
 	void setPressed(OverState newPressed);
-	QSharedPointer<Ui::RippleAnimation> createButtonRipple(int section);
+	std::unique_ptr<Ui::RippleAnimation> createButtonRipple(int section);
 	QPoint buttonRippleTopLeft(int section) const;
 
 	enum class ValidateIconAnimations {
@@ -182,10 +189,10 @@ private:
 	};
 	void validateSelectedIcon(ValidateIconAnimations animations);
 
-	Sets &shownSets() {
+	std::vector<Set> &shownSets() {
 		return (_section == Section::Featured) ? _featuredSets : _mySets;
 	}
-	const Sets &shownSets() const {
+	const std::vector<Set> &shownSets() const {
 		return (_section == Section::Featured) ? _featuredSets : _mySets;
 	}
 	int featuredRowHeight() const;
@@ -210,7 +217,10 @@ private:
 		Archived,
 		Installed,
 	};
-	void appendSet(Sets &to, uint64 setId, AppendSkip skip = AppendSkip::None);
+	void appendSet(
+		std::vector<Set> &to,
+		uint64 setId,
+		AppendSkip skip = AppendSkip::None);
 
 	void selectEmoji(EmojiPtr emoji);
 	int stickersLeft() const;
@@ -222,10 +232,10 @@ private:
 	void refreshFooterIcons();
 
 	ChannelData *_megagroupSet = nullptr;
-	Sets _mySets;
-	Sets _featuredSets;
-	OrderedSet<uint64> _installedLocallySets;
-	QList<bool> _custom;
+	std::vector<Set> _mySets;
+	std::vector<Set> _featuredSets;
+	base::flat_set<uint64> _installedLocallySets;
+	std::vector<bool> _custom;
 	base::flat_set<not_null<DocumentData*>> _favedStickersMap;
 
 	Section _section = Section::Stickers;

Telegram/SourceFiles/chat_helpers/tabbed_panel.cpp

@@ -63,10 +63,10 @@ TabbedPanel::TabbedPanel(
 			_controller->disableGifPauseReason(Window::GifPauseReason::SavedGifs);
 		}
 	});
-	_selector->showRequests()
-		| rpl::start_with_next([this] {
-			this->showFromSelector();
-		}, lifetime());
+	_selector->showRequests(
+	) | rpl::start_with_next([this] {
+		this->showFromSelector();
+	}, lifetime());
 
 	resize(QRect(0, 0, st::emojiPanWidth, st::emojiPanMaxHeight).marginsAdded(innerPadding()).size());
 
@@ -255,7 +255,7 @@ void TabbedPanel::prepareCache() {
 	auto showAnimation = base::take(_a_show);
 	auto showAnimationData = base::take(_showAnimation);
 	showChildren();
-	_cache = myGrab(this);
+	_cache = Ui::GrabWidget(this);
 	_showAnimation = base::take(showAnimationData);
 	_a_show = base::take(showAnimation);
 	if (_a_show.animating()) {
@@ -296,7 +296,7 @@ QImage TabbedPanel::grabForAnimation() {
 	auto showAnimation = base::take(_a_show);
 
 	showChildren();
-	myEnsureResized(this);
+	Ui::SendPendingMoveResizeEvents(this);
 
 	auto result = QImage(size() * cIntRetinaFactor(), QImage::Format_ARGB32_Premultiplied);
 	result.setDevicePixelRatio(cRetinaFactor());

Telegram/SourceFiles/chat_helpers/tabbed_selector.cpp

@@ -339,13 +339,13 @@ TabbedSelector::TabbedSelector(QWidget *parent, not_null<Window::Controller*> co
 		}
 	}));
 
-	Auth().api().stickerSetInstalled()
-		| rpl::start_with_next([this](uint64 setId) {
-			_tabsSlider->setActiveSection(
-				static_cast<int>(SelectorTab::Stickers));
-			stickers()->showStickerSet(setId);
-			_showRequests.fire({});
-		}, lifetime());
+	Auth().api().stickerSetInstalled(
+	) | rpl::start_with_next([this](uint64 setId) {
+		_tabsSlider->setActiveSection(
+			static_cast<int>(SelectorTab::Stickers));
+		stickers()->showStickerSet(setId);
+		_showRequests.fire({});
+	}, lifetime());
 
 	//	setAttribute(Qt::WA_AcceptTouchEvents);
 	setAttribute(Qt::WA_OpaquePaintEvent, false);
@@ -489,7 +489,7 @@ QImage TabbedSelector::grabForAnimation() {
 	showAll();
 	_topShadow->hide();
 	_tabsSlider->hide();
-	myEnsureResized(this);
+	Ui::SendPendingMoveResizeEvents(this);
 
 	auto result = QImage(size() * cIntRetinaFactor(), QImage::Format_ARGB32_Premultiplied);
 	result.setDevicePixelRatio(cRetinaFactor());
@@ -638,10 +638,10 @@ void TabbedSelector::createTabsSlider() {
 	_tabsSlider->setSections(sections);
 
 	_tabsSlider->setActiveSectionFast(static_cast<int>(_currentTabType));
-	_tabsSlider->sectionActivated()
-		| rpl::start_with_next(
-			[this] { switchTab(); },
-			lifetime());
+	_tabsSlider->sectionActivated(
+	) | rpl::start_with_next(
+		[this] { switchTab(); },
+		lifetime());
 }
 
 bool TabbedSelector::hasSectionIcons() const {

Telegram/SourceFiles/codegen/style/generator.cpp

@@ -1191,9 +1191,11 @@ QByteArray iconMaskValueSize(int width, int height) {
 QByteArray iconMaskValuePng(QString filepath) {
 	QByteArray result;
 
-	auto pathAndModifiers = filepath.split('-');
-	filepath = pathAndModifiers[0];
-	auto modifiers = pathAndModifiers.mid(1);
+	QFileInfo fileInfo(filepath);
+	auto directory = fileInfo.dir();
+	auto nameAndModifiers = fileInfo.fileName().split('-');
+	filepath = directory.filePath(nameAndModifiers[0]);
+	auto modifiers = nameAndModifiers.mid(1);
 
 	QImage png100x(filepath + ".png");
 	QImage png200x(filepath + "@2x.png");

Telegram/SourceFiles/config.h

@@ -285,8 +285,6 @@ enum {
 	DialogsFirstLoad = 20, // first dialogs part size requested
 	DialogsPerPage = 500, // next dialogs part size
 
-	FileLoaderQueueStopTimeout = 5000,
-
     UseBigFilesFrom = 10 * 1024 * 1024, // mtp big files methods used for files greater than 10mb
 
 	UploadPartSize = 32 * 1024, // 32kb for photo

Telegram/SourceFiles/core/changelogs.cpp

@@ -0,0 +1,190 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop version of Telegram messaging app, see https://telegram.org
+
+Telegram Desktop is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+It is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+In addition, as a special exception, the copyright holders give permission
+to link the code of portions of this program with the OpenSSL library.
+
+Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
+Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
+*/
+#include "core/changelogs.h"
+
+#include "storage/localstorage.h"
+#include "lang/lang_keys.h"
+#include "mainwindow.h"
+#include "apiwrap.h"
+
+namespace Core {
+namespace {
+
+std::map<int, const char*> AlphaLogs() {
+	return {
+	{
+		1001024,
+		"\xE2\x80\x94 Radically improved navigation. "
+		"New side panel on the right with quick access to "
+		"shared media and group members.\n"
+
+		"\xE2\x80\x94 Pinned Messages. If you are a channel admin, "
+		"pin messages to focus your subscribers\xE2\x80\x99 attention "
+		"on important announcements.\n"
+
+		"\xE2\x80\x94 Also supported clearing history in supergroups "
+		"and added a host of minor improvements."
+	},
+	{
+		1001026,
+		"\xE2\x80\x94 Admin badges in supergroup messages.\n"
+		"\xE2\x80\x94 Fix crashing on launch in OS X 10.6.\n"
+		"\xE2\x80\x94 Bug fixes and other minor improvements."
+	},
+	{
+		1001027,
+		"\xE2\x80\x94 Saved Messages. Bookmark messages by forwarding them "
+		"to \xE2\x80\x9C""Saved Messages\xE2\x80\x9D. "
+		"Access them from the Chats list or from the side menu."
+	},
+	{
+		1002002,
+		"\xE2\x80\x94 Grouped photos and videos are displayed as albums."
+	},
+	{
+		1002004,
+		"\xE2\x80\x94 Group media into an album "
+		"when sharing multiple photos and videos.\n"
+
+		"\xE2\x80\x94 Bug fixes and other minor improvements."
+	},
+	{
+		1002005,
+		"\xE2\x80\x94 When viewing a photo from an album, "
+		"you'll see other pictures from the same group "
+		"as thumbnails in the lower part of the screen.\n"
+
+		"\xE2\x80\x94 When composing an album paste "
+		"additional media from the clipboard.\n"
+
+		"\xE2\x80\x94 Bug fixes and other minor improvements."
+	},
+	};
+}
+
+QString FormatVersionDisplay(int version) {
+	return QString::number(version / 1000000)
+		+ '.' + QString::number((version % 1000000) / 1000)
+		+ ((version % 1000)
+			? ('.' + QString::number(version % 1000))
+			: QString());
+}
+
+QString FormatVersionPrecise(int version) {
+	return QString::number(version / 1000000)
+		+ '.' + QString::number((version % 1000000) / 1000)
+		+ '.' + QString::number(version % 1000);
+}
+
+} // namespace
+
+Changelogs::Changelogs(not_null<AuthSession*> session, int oldVersion)
+: _session(session)
+, _oldVersion(oldVersion) {
+	_chatsSubscription = subscribe(
+		_session->data().moreChatsLoaded(),
+		[this] { requestCloudLogs(); });
+}
+
+std::unique_ptr<Changelogs> Changelogs::Create(
+		not_null<AuthSession*> session) {
+	const auto oldVersion = Local::oldMapVersion();
+	return (oldVersion > 0 && oldVersion < AppVersion)
+		? std::make_unique<Changelogs>(session, oldVersion)
+		: nullptr;
+}
+
+void Changelogs::requestCloudLogs() {
+	unsubscribe(base::take(_chatsSubscription));
+
+	const auto callback = [this](const MTPUpdates &result) {
+		_session->api().applyUpdates(result);
+
+		auto resultEmpty = true;
+		switch (result.type()) {
+		case mtpc_updateShortMessage:
+		case mtpc_updateShortChatMessage:
+		case mtpc_updateShort:
+			resultEmpty = false;
+			break;
+		case mtpc_updatesCombined:
+			resultEmpty = result.c_updatesCombined().vupdates.v.isEmpty();
+			break;
+		case mtpc_updates:
+			resultEmpty = result.c_updates().vupdates.v.isEmpty();
+			break;
+		case mtpc_updatesTooLong:
+		case mtpc_updateShortSentMessage:
+			LOG(("API Error: Bad updates type in app changelog."));
+			break;
+		}
+		if (resultEmpty) {
+			addLocalLogs();
+		}
+	};
+	_session->api().requestChangelog(
+		FormatVersionPrecise(_oldVersion),
+		base::lambda_guarded(this, callback));
+}
+
+void Changelogs::addLocalLogs() {
+	if (cAlphaVersion() || cBetaVersion()) {
+		addAlphaLogs();
+	}
+	if (!_addedSomeLocal) {
+		const auto text = lng_new_version_wrap(
+			lt_version,
+			str_const_toString(AppVersionStr),
+			lt_changes,
+			lang(lng_new_version_minor),
+			lt_link,
+			qsl("https://desktop.telegram.org/changelog"));
+		addLocalLog(text.trimmed());
+	}
+}
+
+void Changelogs::addLocalLog(const QString &text) {
+	auto textWithEntities = TextWithEntities{ text };
+	TextUtilities::ParseEntities(textWithEntities, TextParseLinks);
+	App::wnd()->serviceNotification(
+		textWithEntities,
+		MTP_messageMediaEmpty(),
+		unixtime());
+	_addedSomeLocal = true;
+};
+
+void Changelogs::addAlphaLogs() {
+	for (const auto[version, changes] : AlphaLogs()) {
+		addAlphaLog(version, changes);
+	}
+}
+
+void Changelogs::addAlphaLog(int changeVersion, const char *changes) {
+	if (_oldVersion >= changeVersion) {
+		return;
+	}
+	const auto version = FormatVersionDisplay(changeVersion);
+	const auto text = qsl("New in version %1:\n\n").arg(version)
+		+ QString::fromUtf8(changes).trimmed();
+	addLocalLog(text);
+}
+
+} // namespace Core

Telegram/SourceFiles/core/changelogs.h

@@ -0,0 +1,50 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop version of Telegram messaging app, see https://telegram.org
+
+Telegram Desktop is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+It is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+In addition, as a special exception, the copyright holders give permission
+to link the code of portions of this program with the OpenSSL library.
+
+Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
+Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
+*/
+#pragma once
+
+#include "base/weak_ptr.h"
+
+class AuthSession;
+
+namespace Core {
+
+class Changelogs : public base::has_weak_ptr, private base::Subscriber {
+public:
+	Changelogs(not_null<AuthSession*> session, int oldVersion);
+
+	static std::unique_ptr<Changelogs> Create(
+		not_null<AuthSession*> session);
+
+private:
+	void requestCloudLogs();
+	void addLocalLogs();
+	void addLocalLog(const QString &text);
+	void addAlphaLogs();
+	void addAlphaLog(int changeVersion, const char *changes);
+
+	const not_null<AuthSession*> _session;
+	const int _oldVersion = 0;
+	int _chatsSubscription = 0;
+	bool _addedSomeLocal = false;
+
+};
+
+} // namespace Core

Telegram/SourceFiles/core/click_handler.cpp

@@ -38,9 +38,11 @@ bool ClickHandler::setActive(const ClickHandlerPtr &p, ClickHandlerHost *host) {
 	// other pressed click handler currently, if there is
 	// this method will be called when it is unpressed
 	if (_active && *_active) {
-		auto emitClickHandlerActiveChanged = (!_pressed || !*_pressed || *_pressed == *_active);
-		auto wasactive = *_active;
-		(*_active).clear();
+		const auto emitClickHandlerActiveChanged = false
+			|| !_pressed
+			|| !*_pressed
+			|| (*_pressed == *_active);
+		const auto wasactive = base::take(*_active);
 		if (_activeHost) {
 			if (emitClickHandlerActiveChanged) {
 				_activeHost->clickHandlerActiveChanged(wasactive, false);

Telegram/SourceFiles/core/click_handler.h

@@ -21,7 +21,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #pragma once
 
 class ClickHandler;
-using ClickHandlerPtr = QSharedPointer<ClickHandler>;
+using ClickHandlerPtr = std::shared_ptr<ClickHandler>;
 
 enum ExpandLinksMode {
 	ExpandLinksNone,
@@ -103,9 +103,8 @@ public:
 	// The activated click handler (if any) is returned.
 	static ClickHandlerPtr unpressed() {
 		if (_pressed && *_pressed) {
-			bool activated = (_active && *_active == *_pressed);
-			ClickHandlerPtr waspressed = *_pressed;
-			(*_pressed).clear();
+			const auto activated = (_active && *_active == *_pressed);
+			const auto waspressed = base::take(*_pressed);
 			if (_pressedHost) {
 				_pressedHost->clickHandlerPressedChanged(waspressed, false);
 				_pressedHost = nullptr;
@@ -144,11 +143,15 @@ public:
 	}
 	static void hostDestroyed(ClickHandlerHost *host) {
 		if (_activeHost == host) {
-			if (_active) (*_active).clear();
+			if (_active) {
+				*_active = nullptr;
+			}
 			_activeHost = nullptr;
 		}
 		if (_pressedHost == host) {
-			if (_pressed) (*_pressed).clear();
+			if (_pressed) {
+				*_pressed = nullptr;
+			}
 			_pressedHost = nullptr;
 		}
 	}

Telegram/SourceFiles/core/click_handler_types.cpp

@@ -143,7 +143,7 @@ void HiddenUrlClickHandler::doOpen(QString url) {
 			Ui::show(Box<ConfirmBox>(lang(lng_open_this_link) + qsl("\n\n") + displayUrl, lang(lng_open_link), [urlText] {
 				Ui::hideLayer();
 				UrlClickHandler::doOpen(urlText);
-			}));
+			}), LayerOption::KeepOther);
 		} else {
 			UrlClickHandler::doOpen(urlText);
 		}

Telegram/SourceFiles/core/click_handler_types.h

@@ -97,14 +97,15 @@ private:
 	QString _originalUrl, _readable;
 
 };
-typedef QSharedPointer<TextClickHandler> TextClickHandlerPtr;
 
 class HiddenUrlClickHandler : public UrlClickHandler {
 public:
 	HiddenUrlClickHandler(QString url) : UrlClickHandler(url, false) {
 	}
 	QString copyToClipboardContextItemText() const override {
-		return url().isEmpty() ? QString() : UrlClickHandler::copyToClipboardContextItemText();
+		return url().isEmpty()
+			? QString()
+			: UrlClickHandler::copyToClipboardContextItemText();
 	}
 
 	static void doOpen(QString url);

Telegram/SourceFiles/core/crash_report_window.h

@@ -0,0 +1,226 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop version of Telegram messaging app, see https://telegram.org
+
+Telegram Desktop is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+It is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+In addition, as a special exception, the copyright holders give permission
+to link the code of portions of this program with the OpenSSL library.
+
+Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
+Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
+*/
+#pragma once
+
+class PreLaunchWindow : public QWidget {
+public:
+	PreLaunchWindow(QString title = QString());
+	void activate();
+	int basicSize() const {
+		return _size;
+	}
+	~PreLaunchWindow();
+
+	static PreLaunchWindow *instance();
+
+protected:
+
+	int _size;
+
+};
+
+class PreLaunchLabel : public QLabel {
+public:
+	PreLaunchLabel(QWidget *parent);
+	void setText(const QString &text);
+
+};
+
+class PreLaunchInput : public QLineEdit {
+public:
+	PreLaunchInput(QWidget *parent, bool password = false);
+
+};
+
+class PreLaunchLog : public QTextEdit {
+public:
+	PreLaunchLog(QWidget *parent);
+
+};
+
+class PreLaunchButton : public QPushButton {
+public:
+	PreLaunchButton(QWidget *parent, bool confirm = true);
+	void setText(const QString &text);
+
+};
+
+class PreLaunchCheckbox : public QCheckBox {
+public:
+	PreLaunchCheckbox(QWidget *parent);
+	void setText(const QString &text);
+
+};
+
+class NotStartedWindow : public PreLaunchWindow {
+public:
+	NotStartedWindow();
+
+protected:
+	void closeEvent(QCloseEvent *e);
+	void resizeEvent(QResizeEvent *e);
+
+private:
+	void updateControls();
+
+	PreLaunchLabel _label;
+	PreLaunchLog _log;
+	PreLaunchButton _close;
+
+};
+
+class LastCrashedWindow : public PreLaunchWindow {
+	 Q_OBJECT
+
+public:
+	LastCrashedWindow();
+
+public slots:
+	void onViewReport();
+	void onSaveReport();
+	void onSendReport();
+	void onGetApp();
+
+	void onNetworkSettings();
+	void onNetworkSettingsSaved(QString host, quint32 port, QString username, QString password);
+	void onContinue();
+
+	void onCheckingFinished();
+	void onSendingError(QNetworkReply::NetworkError e);
+	void onSendingFinished();
+	void onSendingProgress(qint64 uploaded, qint64 total);
+
+#ifndef TDESKTOP_DISABLE_AUTOUPDATE
+	void onUpdateRetry();
+	void onUpdateSkip();
+
+	void onUpdateChecking();
+	void onUpdateLatest();
+	void onUpdateDownloading(qint64 ready, qint64 total);
+	void onUpdateReady();
+	void onUpdateFailed();
+#endif // !TDESKTOP_DISABLE_AUTOUPDATE
+
+protected:
+	void closeEvent(QCloseEvent *e);
+	void resizeEvent(QResizeEvent *e);
+
+private:
+	QString minidumpFileName();
+	void updateControls();
+
+	QString _host, _username, _password;
+	quint32 _port;
+
+	PreLaunchLabel _label, _pleaseSendReport, _yourReportName, _minidump;
+	PreLaunchLog _report;
+	PreLaunchButton _send, _sendSkip, _networkSettings, _continue, _showReport, _saveReport, _getApp;
+	PreLaunchCheckbox _includeUsername;
+
+	QString _minidumpName, _minidumpFull, _reportText;
+	QString _reportUsername, _reportTextNoUsername;
+	QByteArray getCrashReportRaw() const;
+
+	bool _reportShown, _reportSaved;
+
+	void excludeReportUsername();
+
+	enum SendingState {
+		SendingNoReport,
+		SendingUpdateCheck,
+		SendingNone,
+		SendingTooOld,
+		SendingTooMany,
+		SendingUnofficial,
+		SendingProgress,
+		SendingUploading,
+		SendingFail,
+		SendingDone,
+	};
+	SendingState _sendingState;
+
+	PreLaunchLabel _updating;
+	qint64 _sendingProgress, _sendingTotal;
+
+	QNetworkAccessManager _sendManager;
+	QNetworkReply *_checkReply, *_sendReply;
+
+#ifndef TDESKTOP_DISABLE_AUTOUPDATE
+	PreLaunchButton _updatingCheck, _updatingSkip;
+	enum UpdatingState {
+		UpdatingNone,
+		UpdatingCheck,
+		UpdatingLatest,
+		UpdatingDownload,
+		UpdatingFail,
+		UpdatingReady
+	};
+	UpdatingState _updatingState;
+	QString _newVersionDownload;
+
+	void setUpdatingState(UpdatingState state, bool force = false);
+	void setDownloadProgress(qint64 ready, qint64 total);
+#endif // !TDESKTOP_DISABLE_AUTOUPDATE
+
+	QString getReportField(const QLatin1String &name, const QLatin1String &prefix);
+	void addReportFieldPart(const QLatin1String &name, const QLatin1String &prefix, QHttpMultiPart *multipart);
+
+};
+
+class NetworkSettingsWindow : public PreLaunchWindow {
+	Q_OBJECT
+
+public:
+	NetworkSettingsWindow(QWidget *parent, QString host, quint32 port, QString username, QString password);
+
+signals:
+	void saved(QString host, quint32 port, QString username, QString password);
+
+public slots:
+	void onSave();
+
+protected:
+	void closeEvent(QCloseEvent *e);
+	void resizeEvent(QResizeEvent *e);
+
+private:
+	void updateControls();
+
+	PreLaunchLabel _hostLabel, _portLabel, _usernameLabel, _passwordLabel;
+	PreLaunchInput _hostInput, _portInput, _usernameInput, _passwordInput;
+	PreLaunchButton _save, _cancel;
+
+	QWidget *_parent;
+
+};
+
+class ShowCrashReportWindow : public PreLaunchWindow {
+public:
+	ShowCrashReportWindow(const QString &text);
+
+protected:
+	void resizeEvent(QResizeEvent *e);
+    void closeEvent(QCloseEvent *e);
+
+private:
+	PreLaunchLog _log;
+
+};

Telegram/SourceFiles/core/crash_reports.cpp

@@ -0,0 +1,580 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop version of Telegram messaging app, see https://telegram.org
+
+Telegram Desktop is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+It is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+In addition, as a special exception, the copyright holders give permission
+to link the code of portions of this program with the OpenSSL library.
+
+Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
+Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
+*/
+#include "core/crash_reports.h"
+
+#include "platform/platform_specific.h"
+
+#include <signal.h>
+#include <new>
+#include <mutex>
+
+#ifndef TDESKTOP_DISABLE_CRASH_REPORTS
+
+// see https://blog.inventic.eu/2012/08/qt-and-google-breakpad/
+#ifdef Q_OS_WIN
+
+#pragma warning(push)
+#pragma warning(disable:4091)
+#include "client/windows/handler/exception_handler.h"
+#pragma warning(pop)
+
+#elif defined Q_OS_MAC // Q_OS_WIN
+
+#include <execinfo.h>
+#include <signal.h>
+#include <sys/syscall.h>
+#include <dlfcn.h>
+#include <unistd.h>
+
+#ifdef MAC_USE_BREAKPAD
+#include "client/mac/handler/exception_handler.h"
+#else // MAC_USE_BREAKPAD
+#include "client/crashpad_client.h"
+#endif // else for MAC_USE_BREAKPAD
+
+#elif defined Q_OS_LINUX64 || defined Q_OS_LINUX32 // Q_OS_MAC
+
+#include <execinfo.h>
+#include <signal.h>
+#include <sys/syscall.h>
+
+#include "client/linux/handler/exception_handler.h"
+
+#endif // Q_OS_LINUX64 || Q_OS_LINUX32
+
+#endif // !TDESKTOP_DISABLE_CRASH_REPORTS
+
+namespace CrashReports {
+namespace {
+
+using Annotations = std::map<std::string, std::string>;
+using AnnotationRefs = std::map<std::string, const QString*>;
+
+Annotations ProcessAnnotations;
+AnnotationRefs ProcessAnnotationRefs;
+
+#ifndef TDESKTOP_DISABLE_CRASH_REPORTS
+
+QString ReportPath;
+FILE *ReportFile = nullptr;
+int ReportFileNo = 0;
+char LaunchedDateTimeStr[32] = { 0 };
+char LaunchedBinaryName[256] = { 0 };
+
+void SafeWriteChar(char ch) {
+	fwrite(&ch, 1, 1, ReportFile);
+}
+
+template <bool Unsigned, typename Type>
+struct writeNumberSignAndRemoveIt {
+	static void call(Type &number) {
+		if (number < 0) {
+			SafeWriteChar('-');
+			number = -number;
+		}
+	}
+};
+template <typename Type>
+struct writeNumberSignAndRemoveIt<true, Type> {
+	static void call(Type &number) {
+	}
+};
+
+template <typename Type>
+const dump &SafeWriteNumber(const dump &stream, Type number) {
+	if (!ReportFile) return stream;
+
+	writeNumberSignAndRemoveIt<(Type(-1) > Type(0)), Type>::call(number);
+	Type upper = 1, prev = number / 10;
+	while (prev >= upper) {
+		upper *= 10;
+	}
+	while (upper > 0) {
+		int digit = (number / upper);
+		SafeWriteChar('0' + digit);
+		number -= digit * upper;
+		upper /= 10;
+	}
+	return stream;
+}
+
+using ReservedMemoryChunk = std::array<gsl::byte, 1024 * 1024>;
+std::unique_ptr<ReservedMemoryChunk> ReservedMemory;
+
+void InstallOperatorNewHandler() {
+	ReservedMemory = std::make_unique<ReservedMemoryChunk>();
+	std::set_new_handler([] {
+		std::set_new_handler(nullptr);
+		ReservedMemory.reset();
+		Unexpected("Could not allocate!");
+	});
+}
+
+Qt::HANDLE ReportingThreadId = nullptr;
+bool ReportingHeaderWritten = false;
+QMutex ReportingMutex;
+
+const char *BreakpadDumpPath = nullptr;
+const wchar_t *BreakpadDumpPathW = nullptr;
+
+#if defined Q_OS_MAC || defined Q_OS_LINUX32 || defined Q_OS_LINUX64
+struct sigaction SIG_def[32];
+
+void SignalHandler(int signum, siginfo_t *info, void *ucontext) {
+	if (signum > 0) {
+		sigaction(signum, &SIG_def[signum], 0);
+	}
+
+#else // Q_OS_MAC || Q_OS_LINUX32 || Q_OS_LINUX64
+void SignalHandler(int signum) {
+#endif // else for Q_OS_MAC || Q_OS_LINUX || Q_OS_LINUX64
+
+	const char* name = 0;
+	switch (signum) {
+	case SIGABRT: name = "SIGABRT"; break;
+	case SIGSEGV: name = "SIGSEGV"; break;
+	case SIGILL: name = "SIGILL"; break;
+	case SIGFPE: name = "SIGFPE"; break;
+#ifndef Q_OS_WIN
+	case SIGBUS: name = "SIGBUS"; break;
+	case SIGSYS: name = "SIGSYS"; break;
+#endif // !Q_OS_WIN
+	}
+
+	Qt::HANDLE thread = QThread::currentThreadId();
+	if (thread == ReportingThreadId) return;
+
+	QMutexLocker lock(&ReportingMutex);
+	ReportingThreadId = thread;
+
+	if (!ReportingHeaderWritten) {
+		ReportingHeaderWritten = true;
+		auto dec2hex = [](int value) -> char {
+			if (value >= 0 && value < 10) {
+				return '0' + value;
+			} else if (value >= 10 && value < 16) {
+				return 'a' + (value - 10);
+			}
+			return '#';
+		};
+
+		for (const auto &i : ProcessAnnotationRefs) {
+			QByteArray utf8 = i.second->toUtf8();
+			std::string wrapped;
+			wrapped.reserve(4 * utf8.size());
+			for (auto ch : utf8) {
+				auto uch = static_cast<uchar>(ch);
+				wrapped.append("\\x", 2).append(1, dec2hex(uch >> 4)).append(1, dec2hex(uch & 0x0F));
+			}
+			ProcessAnnotations[i.first] = wrapped;
+		}
+
+		const Annotations c_ProcessAnnotations(ProcessAnnotations);
+		for (const auto &i : c_ProcessAnnotations) {
+			dump() << i.first.c_str() << ": " << i.second.c_str() << "\n";
+		}
+		psWriteDump();
+		dump() << "\n";
+	}
+	if (name) {
+		dump() << "Caught signal " << signum << " (" << name << ") in thread " << uint64(thread) << "\n";
+	} else if (signum == -1) {
+        dump() << "Google Breakpad caught a crash, minidump written in thread " << uint64(thread) << "\n";
+        if (BreakpadDumpPath) {
+            dump() << "Minidump: " << BreakpadDumpPath << "\n";
+        } else if (BreakpadDumpPathW) {
+            dump() << "Minidump: " << BreakpadDumpPathW << "\n";
+        }
+    } else {
+		dump() << "Caught signal " << signum << " in thread " << uint64(thread) << "\n";
+	}
+
+	// see https://github.com/benbjohnson/bandicoot
+#if defined Q_OS_MAC || defined Q_OS_LINUX32 || defined Q_OS_LINUX64
+	ucontext_t *uc = (ucontext_t*)ucontext;
+
+	void *caller = 0;
+	if (uc) {
+#if defined(__APPLE__) && !defined(MAC_OS_X_VERSION_10_6)
+		/* OSX < 10.6 */
+#if defined(__x86_64__)
+		caller = (void*)uc->uc_mcontext->__ss.__rip;
+#elif defined(__i386__)
+		caller = (void*)uc->uc_mcontext->__ss.__eip;
+#else
+		caller = (void*)uc->uc_mcontext->__ss.__srr0;
+#endif
+#elif defined(__APPLE__) && defined(MAC_OS_X_VERSION_10_6)
+		/* OSX >= 10.6 */
+#if defined(_STRUCT_X86_THREAD_STATE64) && !defined(__i386__)
+		caller = (void*)uc->uc_mcontext->__ss.__rip;
+#else
+		caller = (void*)uc->uc_mcontext->__ss.__eip;
+#endif
+#elif defined(__linux__)
+		/* Linux */
+#if defined(__i386__)
+		caller = (void*)uc->uc_mcontext.gregs[14]; /* Linux 32 */
+#elif defined(__X86_64__) || defined(__x86_64__)
+		caller = (void*)uc->uc_mcontext.gregs[16]; /* Linux 64 */
+#elif defined(__ia64__) /* Linux IA64 */
+		caller = (void*)uc->uc_mcontext.sc_ip;
+#endif
+
+#endif
+	}
+
+    void *addresses[132] = { 0 };
+	size_t size = backtrace(addresses, 128);
+
+	/* overwrite sigaction with caller's address */
+    if (caller) {
+        for (int i = size; i > 1; --i) {
+            addresses[i + 3] = addresses[i];
+        }
+        addresses[2] = (void*)0x1;
+        addresses[3] = caller;
+        addresses[4] = (void*)0x1;
+    }
+
+#ifdef Q_OS_MAC
+	dump() << "\nBase image addresses:\n";
+	for (size_t i = 0; i < size; ++i) {
+		Dl_info info;
+		dump() << i << " ";
+		if (dladdr(addresses[i], &info)) {
+			dump() << uint64(info.dli_fbase) << " (" << info.dli_fname << ")\n";
+		} else {
+			dump() << "_unknown_module_\n";
+		}
+	}
+#endif // Q_OS_MAC
+
+	dump() << "\nBacktrace:\n";
+
+	backtrace_symbols_fd(addresses, size, ReportFileNo);
+
+#else // Q_OS_MAC || Q_OS_LINUX32 || Q_OS_LINUX64
+	dump() << "\nBacktrace:\n";
+
+	psWriteStackTrace();
+#endif // else for Q_OS_MAC || Q_OS_LINUX32 || Q_OS_LINUX64
+
+	dump() << "\n";
+
+	ReportingThreadId = nullptr;
+}
+
+bool SetSignalHandlers = true;
+bool CrashLogged = false;
+#if !defined Q_OS_MAC || defined MAC_USE_BREAKPAD
+google_breakpad::ExceptionHandler* BreakpadExceptionHandler = 0;
+
+#ifdef Q_OS_WIN
+bool DumpCallback(const wchar_t* _dump_dir, const wchar_t* _minidump_id, void* context, EXCEPTION_POINTERS* exinfo, MDRawAssertionInfo* assertion, bool success)
+#elif defined Q_OS_MAC // Q_OS_WIN
+bool DumpCallback(const char* _dump_dir, const char* _minidump_id, void *context, bool success)
+#elif defined Q_OS_LINUX64 || defined Q_OS_LINUX32 // Q_OS_MAC
+bool DumpCallback(const google_breakpad::MinidumpDescriptor &md, void *context, bool success)
+#endif // Q_OS_LINUX64 || Q_OS_LINUX32
+{
+	if (CrashLogged) return success;
+	CrashLogged = true;
+
+#ifdef Q_OS_WIN
+    BreakpadDumpPathW = _minidump_id;
+	SignalHandler(-1);
+#else // Q_OS_WIN
+
+#ifdef Q_OS_MAC
+    BreakpadDumpPath = _minidump_id;
+#else // Q_OS_MAC
+    BreakpadDumpPath = md.path();
+#endif // else for Q_OS_MAC
+	SignalHandler(-1, 0, 0);
+#endif // else for Q_OS_WIN
+	return success;
+}
+#endif // !Q_OS_MAC || MAC_USE_BREAKPAD
+
+#endif // !TDESKTOP_DISABLE_CRASH_REPORTS
+
+} // namespace
+
+void StartCatching() {
+#ifndef TDESKTOP_DISABLE_CRASH_REPORTS
+	ProcessAnnotations["Binary"] = cExeName().toUtf8().constData();
+	ProcessAnnotations["ApiId"] = QString::number(ApiId).toUtf8().constData();
+	ProcessAnnotations["Version"] = (cBetaVersion() ? qsl("%1 beta").arg(cBetaVersion()) : (cAlphaVersion() ? qsl("%1 alpha") : qsl("%1")).arg(AppVersion)).toUtf8().constData();
+	ProcessAnnotations["Launched"] = QDateTime::currentDateTime().toString("dd.MM.yyyy hh:mm:ss").toUtf8().constData();
+	ProcessAnnotations["Platform"] = cPlatformString().toUtf8().constData();
+	ProcessAnnotations["UserTag"] = QString::number(Sandbox::UserTag(), 16).toUtf8().constData();
+
+	QString dumpspath = cWorkingDir() + qsl("tdata/dumps");
+	QDir().mkpath(dumpspath);
+
+#ifdef Q_OS_WIN
+	BreakpadExceptionHandler = new google_breakpad::ExceptionHandler(
+		dumpspath.toStdWString(),
+		google_breakpad::ExceptionHandler::FilterCallback(nullptr),
+		DumpCallback,
+		(void*)nullptr, // callback_context
+		google_breakpad::ExceptionHandler::HANDLER_ALL,
+		MINIDUMP_TYPE(MiniDumpNormal),
+		// MINIDUMP_TYPE(MiniDumpWithFullMemory | MiniDumpWithHandleData | MiniDumpWithThreadInfo | MiniDumpWithProcessThreadData | MiniDumpWithFullMemoryInfo | MiniDumpWithUnloadedModules | MiniDumpWithFullAuxiliaryState | MiniDumpIgnoreInaccessibleMemory | MiniDumpWithTokenInformation),
+		(const wchar_t*)nullptr, // pipe_name
+		(const google_breakpad::CustomClientInfo*)nullptr
+	);
+#elif defined Q_OS_MAC // Q_OS_WIN
+
+#ifdef MAC_USE_BREAKPAD
+#ifndef _DEBUG
+	BreakpadExceptionHandler = new google_breakpad::ExceptionHandler(
+		QFile::encodeName(dumpspath).toStdString(),
+		/*FilterCallback*/ 0,
+		DumpCallback,
+		/*context*/ 0,
+		true,
+		0
+	);
+#endif // !_DEBUG
+	SetSignalHandlers = false;
+#else // MAC_USE_BREAKPAD
+	crashpad::CrashpadClient crashpad_client;
+	std::string handler = (cExeDir() + cExeName() + qsl("/Contents/Helpers/crashpad_handler")).toUtf8().constData();
+	std::string database = QFile::encodeName(dumpspath).constData();
+	if (crashpad_client.StartHandler(base::FilePath(handler),
+		                                base::FilePath(database),
+		                                std::string(),
+		                                ProcessAnnotations,
+		                                std::vector<std::string>(),
+		                                false)) {
+		crashpad_client.UseHandler();
+	}
+#endif // else for MAC_USE_BREAKPAD
+#elif defined Q_OS_LINUX64 || defined Q_OS_LINUX32
+	BreakpadExceptionHandler = new google_breakpad::ExceptionHandler(
+		google_breakpad::MinidumpDescriptor(QFile::encodeName(dumpspath).toStdString()),
+		/*FilterCallback*/ 0,
+		DumpCallback,
+		/*context*/ 0,
+		true,
+		-1
+	);
+#endif // Q_OS_LINUX64 || Q_OS_LINUX32
+#endif // !TDESKTOP_DISABLE_CRASH_REPORTS
+}
+
+void FinishCatching() {
+#ifndef TDESKTOP_DISABLE_CRASH_REPORTS
+#if !defined Q_OS_MAC || defined MAC_USE_BREAKPAD
+
+	delete base::take(BreakpadExceptionHandler);
+
+#endif // !Q_OS_MAC || MAC_USE_BREAKPAD
+#endif // !TDESKTOP_DISABLE_CRASH_REPORTS
+}
+
+Status Start() {
+#ifndef TDESKTOP_DISABLE_CRASH_REPORTS
+	ReportPath = cWorkingDir() + qsl("tdata/working");
+
+#ifdef Q_OS_WIN
+	FILE *f = nullptr;
+	if (_wfopen_s(&f, ReportPath.toStdWString().c_str(), L"rb") != 0) {
+		f = nullptr;
+	} else {
+#else // !Q_OS_WIN
+	if (FILE *f = fopen(QFile::encodeName(ReportPath).constData(), "rb")) {
+#endif // else for !Q_OS_WIN
+		QByteArray lastdump;
+		char buffer[256 * 1024] = { 0 };
+		int32 read = fread(buffer, 1, 256 * 1024, f);
+		if (read > 0) {
+			lastdump.append(buffer, read);
+		}
+		fclose(f);
+
+		Sandbox::SetLastCrashDump(lastdump);
+
+		LOG(("Opened '%1' for reading, the previous Telegram Desktop launch was not finished properly :( Crash log size: %2").arg(ReportPath).arg(lastdump.size()));
+
+		return LastCrashed;
+	}
+
+#endif // !TDESKTOP_DISABLE_CRASH_REPORTS
+	return Restart();
+}
+
+Status Restart() {
+#ifndef TDESKTOP_DISABLE_CRASH_REPORTS
+	if (ReportFile) {
+		return Started;
+	}
+
+#ifdef Q_OS_WIN
+	if (_wfopen_s(&ReportFile, ReportPath.toStdWString().c_str(), L"wb") != 0) {
+		ReportFile = nullptr;
+	}
+#else // Q_OS_WIN
+	ReportFile = fopen(QFile::encodeName(ReportPath).constData(), "wb");
+#endif // else for Q_OS_WIN
+	if (ReportFile) {
+#ifdef Q_OS_WIN
+		ReportFileNo = _fileno(ReportFile);
+#else // Q_OS_WIN
+		ReportFileNo = fileno(ReportFile);
+#endif // else for Q_OS_WIN
+		if (SetSignalHandlers) {
+#ifndef Q_OS_WIN
+			struct sigaction sigact;
+
+			sigact.sa_sigaction = SignalHandler;
+			sigemptyset(&sigact.sa_mask);
+			sigact.sa_flags = SA_NODEFER | SA_RESETHAND | SA_SIGINFO;
+
+			sigaction(SIGABRT, &sigact, &SIG_def[SIGABRT]);
+			sigaction(SIGSEGV, &sigact, &SIG_def[SIGSEGV]);
+			sigaction(SIGILL, &sigact, &SIG_def[SIGILL]);
+			sigaction(SIGFPE, &sigact, &SIG_def[SIGFPE]);
+			sigaction(SIGBUS, &sigact, &SIG_def[SIGBUS]);
+			sigaction(SIGSYS, &sigact, &SIG_def[SIGSYS]);
+#else // !Q_OS_WIN
+			signal(SIGABRT, SignalHandler);
+			signal(SIGSEGV, SignalHandler);
+			signal(SIGILL, SignalHandler);
+			signal(SIGFPE, SignalHandler);
+#endif // else for !Q_OS_WIN
+		}
+
+		InstallOperatorNewHandler();
+
+		return Started;
+	}
+
+	LOG(("FATAL: Could not open '%1' for writing!").arg(ReportPath));
+
+	return CantOpen;
+#else // !TDESKTOP_DISABLE_CRASH_REPORTS
+	return Started;
+#endif // else for !TDESKTOP_DISABLE_CRASH_REPORTS
+}
+
+void Finish() {
+#ifndef TDESKTOP_DISABLE_CRASH_REPORTS
+	FinishCatching();
+
+	if (ReportFile) {
+		fclose(ReportFile);
+		ReportFile = nullptr;
+
+#ifdef Q_OS_WIN
+		_wunlink(ReportPath.toStdWString().c_str());
+#else // Q_OS_WIN
+		unlink(ReportPath.toUtf8().constData());
+#endif // else for Q_OS_WIN
+	}
+#endif // !TDESKTOP_DISABLE_CRASH_REPORTS
+}
+
+void SetAnnotation(const std::string &key, const QString &value) {
+	static QMutex mutex;
+	QMutexLocker lock(&mutex);
+
+	if (!value.trimmed().isEmpty()) {
+		ProcessAnnotations[key] = value.toUtf8().constData();
+	} else {
+		ProcessAnnotations.erase(key);
+	}
+}
+
+void SetAnnotationRef(const std::string &key, const QString *valuePtr) {
+	if (valuePtr) {
+		ProcessAnnotationRefs[key] = valuePtr;
+	} else {
+		ProcessAnnotationRefs.erase(key);
+	}
+}
+
+#ifndef TDESKTOP_DISABLE_CRASH_REPORTS
+
+dump::~dump() {
+	if (ReportFile) {
+		fflush(ReportFile);
+	}
+}
+
+const dump &operator<<(const dump &stream, const char *str) {
+	if (!ReportFile) return stream;
+
+	fwrite(str, 1, strlen(str), ReportFile);
+	return stream;
+}
+
+const dump &operator<<(const dump &stream, const wchar_t *str) {
+    if (!ReportFile) return stream;
+
+    for (int i = 0, l = wcslen(str); i < l; ++i) {
+        if (str[i] >= 0 && str[i] < 128) {
+			SafeWriteChar(char(str[i]));
+        } else {
+			SafeWriteChar('?');
+        }
+    }
+    return stream;
+}
+
+const dump &operator<<(const dump &stream, int num) {
+	return SafeWriteNumber(stream, num);
+}
+
+const dump &operator<<(const dump &stream, unsigned int num) {
+	return SafeWriteNumber(stream, num);
+}
+
+const dump &operator<<(const dump &stream, unsigned long num) {
+	return SafeWriteNumber(stream, num);
+}
+
+const dump &operator<<(const dump &stream, unsigned long long num) {
+	return SafeWriteNumber(stream, num);
+}
+
+const dump &operator<<(const dump &stream, double num) {
+	if (num < 0) {
+		SafeWriteChar('-');
+		num = -num;
+	}
+	SafeWriteNumber(stream, uint64(floor(num)));
+	SafeWriteChar('.');
+	num -= floor(num);
+	for (int i = 0; i < 4; ++i) {
+		num *= 10;
+		int digit = int(floor(num));
+		SafeWriteChar('0' + digit);
+		num -= digit;
+	}
+	return stream;
+}
+
+#endif // TDESKTOP_DISABLE_CRASH_REPORTS
+
+} // namespace CrashReports

Telegram/SourceFiles/core/crash_reports.h

@@ -0,0 +1,85 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop version of Telegram messaging app, see https://telegram.org
+
+Telegram Desktop is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+It is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+In addition, as a special exception, the copyright holders give permission
+to link the code of portions of this program with the OpenSSL library.
+
+Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
+Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
+*/
+#pragma once
+
+namespace CrashReports {
+
+#ifndef TDESKTOP_DISABLE_CRASH_REPORTS
+
+struct dump {
+	~dump();
+};
+const dump &operator<<(const dump &stream, const char *str);
+const dump &operator<<(const dump &stream, const wchar_t *str);
+const dump &operator<<(const dump &stream, int num);
+const dump &operator<<(const dump &stream, unsigned int num);
+const dump &operator<<(const dump &stream, unsigned long num);
+const dump &operator<<(const dump &stream, unsigned long long num);
+const dump &operator<<(const dump &stream, double num);
+
+#endif // TDESKTOP_DISABLE_CRASH_REPORTS
+
+enum Status {
+	CantOpen,
+	LastCrashed,
+	Started
+};
+Status Start();
+Status Restart(); // can be only CantOpen or Started
+void Finish();
+
+void SetAnnotation(const std::string &key, const QString &value);
+inline void ClearAnnotation(const std::string &key) {
+	SetAnnotation(key, QString());
+}
+
+// Remembers value pointer and tries to add the value to the crash report.
+// Attention! You should call clearCrashAnnotationRef(key) before destroying value.
+void SetAnnotationRef(const std::string &key, const QString *valuePtr);
+inline void ClearAnnotationRef(const std::string &key) {
+	SetAnnotationRef(key, nullptr);
+}
+
+void StartCatching();
+void FinishCatching();
+
+} // namespace CrashReports
+
+namespace base {
+namespace assertion {
+
+inline void log(const char *message, const char *file, int line) {
+	const auto info = QStringLiteral("%1 %2:%3"
+	).arg(message
+	).arg(file
+	).arg(line
+	);
+	const auto entry = QStringLiteral("Assertion Failed! ") + info;
+
+#ifdef LOG
+	LOG((entry));
+#endif // LOG
+
+	CrashReports::SetAnnotation("Assertion", info);
+}
+
+} // namespace assertion
+} // namespace base

Telegram/SourceFiles/core/file_utilities.cpp

@@ -26,7 +26,11 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "base/task_queue.h"
 #include "messenger.h"
 
-bool filedialogGetSaveFile(QString &file, const QString &caption, const QString &filter, const QString &initialPath) {
+bool filedialogGetSaveFile(
+		QString &file,
+		const QString &caption,
+		const QString &filter,
+		const QString &initialPath) {
 	QStringList files;
 	QByteArray remoteContent;
 	bool result = Platform::FileDialog::Get(files, remoteContent, caption, filter, FileDialog::internal::Type::WriteFile, initialPath);
@@ -34,7 +38,12 @@ bool filedialogGetSaveFile(QString &file, const QString &caption, const QString
 	return result;
 }
 
-QString filedialogDefaultName(const QString &prefix, const QString &extension, const QString &path, bool skipExistance, int fileTime) {
+QString filedialogDefaultName(
+		const QString &prefix,
+		const QString &extension,
+		const QString &path,
+		bool skipExistance,
+		int fileTime) {
 	auto directoryPath = path;
 	if (directoryPath.isEmpty()) {
 		if (cDialogLastPath().isEmpty()) {
@@ -69,7 +78,10 @@ QString filedialogDefaultName(const QString &prefix, const QString &extension, c
 	return name;
 }
 
-QString filedialogNextFilename(const QString &name, const QString &cur, const QString &path) {
+QString filedialogNextFilename(
+		const QString &name,
+		const QString &cur,
+		const QString &path) {
 	QDir dir(path.isEmpty() ? cDialogLastPath() : path);
 	int32 extIndex = name.lastIndexOf('.');
 	QString prefix = name, extension;
@@ -130,19 +142,30 @@ void UnsafeLaunchDefault(const QString &filepath) {
 
 namespace FileDialog {
 
-void GetOpenPath(const QString &caption, const QString &filter, base::lambda<void(const OpenResult &result)> callback, base::lambda<void()> failed) {
-	base::TaskQueue::Main().Put([caption, filter, callback = std::move(callback), failed = std::move(failed)] {
+void GetOpenPath(
+		const QString &caption,
+		const QString &filter,
+		base::lambda<void(OpenResult &&result)> callback,
+		base::lambda<void()> failed) {
+	base::TaskQueue::Main().Put([=] {
 		auto files = QStringList();
 		auto remoteContent = QByteArray();
-		if (Platform::FileDialog::Get(files, remoteContent, caption, filter, FileDialog::internal::Type::ReadFile)
-			&& ((!files.isEmpty() && !files[0].isEmpty()) || !remoteContent.isEmpty())) {
+		const auto success = Platform::FileDialog::Get(
+			files,
+			remoteContent,
+			caption,
+			filter,
+			FileDialog::internal::Type::ReadFile);
+		if (success
+			&& ((!files.isEmpty() && !files[0].isEmpty())
+				|| !remoteContent.isEmpty())) {
 			if (callback) {
 				auto result = OpenResult();
 				if (!files.isEmpty() && !files[0].isEmpty()) {
 					result.paths.push_back(files[0]);
 				}
 				result.remoteContent = remoteContent;
-				callback(result);
+				callback(std::move(result));
 			}
 		} else if (failed) {
 			failed();
@@ -150,17 +173,26 @@ void GetOpenPath(const QString &caption, const QString &filter, base::lambda<voi
 	});
 }
 
-void GetOpenPaths(const QString &caption, const QString &filter, base::lambda<void(const OpenResult &result)> callback, base::lambda<void()> failed) {
-	base::TaskQueue::Main().Put([caption, filter, callback = std::move(callback), failed = std::move(failed)] {
+void GetOpenPaths(
+		const QString &caption,
+		const QString &filter,
+		base::lambda<void(OpenResult &&result)> callback,
+		base::lambda<void()> failed) {
+	base::TaskQueue::Main().Put([=] {
 		auto files = QStringList();
 		auto remoteContent = QByteArray();
-		if (Platform::FileDialog::Get(files, remoteContent, caption, filter, FileDialog::internal::Type::ReadFiles)
-			&& (!files.isEmpty() || !remoteContent.isEmpty())) {
+		const auto success = Platform::FileDialog::Get(
+			files,
+			remoteContent,
+			caption,
+			filter,
+			FileDialog::internal::Type::ReadFiles);
+		if (success && (!files.isEmpty() || !remoteContent.isEmpty())) {
 			if (callback) {
 				auto result = OpenResult();
 				result.paths = files;
 				result.remoteContent = remoteContent;
-				callback(result);
+				callback(std::move(result));
 			}
 		} else if (failed) {
 			failed();
@@ -168,12 +200,17 @@ void GetOpenPaths(const QString &caption, const QString &filter, base::lambda<vo
 	});
 }
 
-void GetWritePath(const QString &caption, const QString &filter, const QString &initialPath, base::lambda<void(const QString &result)> callback, base::lambda<void()> failed) {
-	base::TaskQueue::Main().Put([caption, filter, initialPath, callback = std::move(callback), failed = std::move(failed)] {
+void GetWritePath(
+		const QString &caption,
+		const QString &filter,
+		const QString &initialPath,
+		base::lambda<void(QString &&result)> callback,
+		base::lambda<void()> failed) {
+	base::TaskQueue::Main().Put([=] {
 		auto file = QString();
 		if (filedialogGetSaveFile(file, caption, filter, initialPath)) {
 			if (callback) {
-				callback(file);
+				callback(std::move(file));
 			}
 		} else if (failed) {
 			failed();
@@ -181,14 +218,24 @@ void GetWritePath(const QString &caption, const QString &filter, const QString &
 	});
 }
 
-void GetFolder(const QString &caption, const QString &initialPath, base::lambda<void(const QString &result)> callback, base::lambda<void()> failed) {
-	base::TaskQueue::Main().Put([caption, initialPath, callback = std::move(callback), failed = std::move(failed)] {
+void GetFolder(
+		const QString &caption,
+		const QString &initialPath,
+		base::lambda<void(QString &&result)> callback,
+		base::lambda<void()> failed) {
+	base::TaskQueue::Main().Put([=] {
 		auto files = QStringList();
 		auto remoteContent = QByteArray();
-		if (Platform::FileDialog::Get(files, remoteContent, caption, QString(), FileDialog::internal::Type::ReadFolder, initialPath)
-			&& !files.isEmpty() && !files[0].isEmpty()) {
+		const auto success = Platform::FileDialog::Get(
+			files,
+			remoteContent,
+			caption,
+			QString(),
+			FileDialog::internal::Type::ReadFolder,
+			initialPath);
+		if (success && !files.isEmpty() && !files[0].isEmpty()) {
 			if (callback) {
-				callback(files[0]);
+				callback(std::move(files[0]));
 			}
 		} else if (failed) {
 			failed();

Telegram/SourceFiles/core/file_utilities.h

@@ -23,10 +23,22 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "base/observer.h"
 
 // legacy
-bool filedialogGetSaveFile(QString &file, const QString &caption, const QString &filter, const QString &initialPath);
+bool filedialogGetSaveFile(
+	QString &file,
+	const QString &caption,
+	const QString &filter,
+	const QString &initialPath);
 
-QString filedialogDefaultName(const QString &prefix, const QString &extension, const QString &path = QString(), bool skipExistance = false, int fileTime = 0);
-QString filedialogNextFilename(const QString &name, const QString &cur, const QString &path = QString());
+QString filedialogDefaultName(
+	const QString &prefix,
+	const QString &extension,
+	const QString &path = QString(),
+	bool skipExistance = false,
+	int fileTime = 0);
+QString filedialogNextFilename(
+	const QString &name,
+	const QString &cur,
+	const QString &path = QString());
 
 namespace File {
 
@@ -54,10 +66,27 @@ struct OpenResult {
 	QStringList paths;
 	QByteArray remoteContent;
 };
-void GetOpenPath(const QString &caption, const QString &filter, base::lambda<void(const OpenResult &result)> callback, base::lambda<void()> failed = base::lambda<void()>());
-void GetOpenPaths(const QString &caption, const QString &filter, base::lambda<void(const OpenResult &result)> callback, base::lambda<void()> failed = base::lambda<void()>());
-void GetWritePath(const QString &caption, const QString &filter, const QString &initialPath, base::lambda<void(const QString &result)> callback, base::lambda<void()> failed = base::lambda<void()>());
-void GetFolder(const QString &caption, const QString &initialPath, base::lambda<void(const QString &result)> callback, base::lambda<void()> failed = base::lambda<void()>());
+void GetOpenPath(
+	const QString &caption,
+	const QString &filter,
+	base::lambda<void(OpenResult &&result)> callback,
+	base::lambda<void()> failed = base::lambda<void()>());
+void GetOpenPaths(
+	const QString &caption,
+	const QString &filter,
+	base::lambda<void(OpenResult &&result)> callback,
+	base::lambda<void()> failed = base::lambda<void()>());
+void GetWritePath(
+	const QString &caption,
+	const QString &filter,
+	const QString &initialPath,
+	base::lambda<void(QString &&result)> callback,
+	base::lambda<void()> failed = base::lambda<void()>());
+void GetFolder(
+	const QString &caption,
+	const QString &initialPath,
+	base::lambda<void(QString &&result)> callback,
+	base::lambda<void()> failed = base::lambda<void()>());
 
 QString AllFilesFilter();
 
@@ -72,7 +101,13 @@ enum class Type {
 
 void InitLastPathDefault();
 
-bool GetDefault(QStringList &files, QByteArray &remoteContent, const QString &caption, const QString &filter, ::FileDialog::internal::Type type, QString startFile);
+bool GetDefault(
+	QStringList &files,
+	QByteArray &remoteContent,
+	const QString &caption,
+	const QString &filter,
+	::FileDialog::internal::Type type,
+	QString startFile);
 
 } // namespace internal
 } // namespace FileDialog

Telegram/SourceFiles/core/launcher.cpp

@@ -0,0 +1,246 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop version of Telegram messaging app, see https://telegram.org
+
+Telegram Desktop is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+It is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+In addition, as a special exception, the copyright holders give permission
+to link the code of portions of this program with the OpenSSL library.
+
+Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
+Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
+*/
+#include "core/launcher.h"
+
+#include "platform/platform_launcher.h"
+#include "platform/platform_specific.h"
+#include "core/crash_reports.h"
+#include "core/main_queue_processor.h"
+#include "application.h"
+
+namespace Core {
+
+std::unique_ptr<Launcher> Launcher::Create(int argc, char *argv[]) {
+	return std::make_unique<Platform::Launcher>(argc, argv);
+}
+
+Launcher::Launcher(int argc, char *argv[])
+: _argc(argc)
+, _argv(argv) {
+}
+
+void Launcher::init() {
+	_arguments = readArguments(_argc, _argv);
+
+	prepareSettings();
+
+	QCoreApplication::setApplicationName(qsl("TelegramDesktop"));
+
+#ifndef OS_MAC_OLD
+	QCoreApplication::setAttribute(Qt::AA_DisableHighDpiScaling, true);
+#endif // OS_MAC_OLD
+
+	initHook();
+}
+
+int Launcher::exec() {
+	init();
+
+	if (cLaunchMode() == LaunchModeFixPrevious) {
+		return psFixPrevious();
+	} else if (cLaunchMode() == LaunchModeCleanup) {
+		return psCleanup();
+	}
+
+	// both are finished in Application::closeApplication
+	Logs::start(this); // must be started before Platform is started
+	Platform::start(); // must be started before QApplication is created
+
+	auto result = executeApplication();
+
+	DEBUG_LOG(("Telegram finished, result: %1").arg(result));
+
+#ifndef TDESKTOP_DISABLE_AUTOUPDATE
+	if (cRestartingUpdate()) {
+		DEBUG_LOG(("Application Info: executing updater to install update..."));
+		if (!launchUpdater(UpdaterLaunch::PerformUpdate)) {
+			psDeleteDir(cWorkingDir() + qsl("tupdates/temp"));
+		}
+	} else
+#endif // !TDESKTOP_DISABLE_AUTOUPDATE
+	if (cRestarting()) {
+		DEBUG_LOG(("Application Info: executing Telegram, because of restart..."));
+		launchUpdater(UpdaterLaunch::JustRelaunch);
+	}
+
+	CrashReports::Finish();
+	Platform::finish();
+	Logs::finish();
+
+	return result;
+}
+
+QStringList Launcher::readArguments(int argc, char *argv[]) const {
+	Expects(argc >= 0);
+
+	if (const auto native = readArgumentsHook(argc, argv)) {
+		return *native;
+	}
+
+	auto result = QStringList();
+	result.reserve(argc);
+	for (auto i = 0; i != argc; ++i) {
+		result.push_back(fromUtf8Safe(argv[i]));
+	}
+	return result;
+}
+
+QString Launcher::argumentsString() const {
+	return _arguments.join(' ');
+}
+
+void Launcher::prepareSettings() {
+#ifdef Q_OS_MAC
+#ifndef OS_MAC_OLD
+	if (QSysInfo::macVersion() >= QSysInfo::MV_10_11) {
+		gIsElCapitan = true;
+	}
+#else // OS_MAC_OLD
+	if (QSysInfo::macVersion() < QSysInfo::MV_10_7) {
+		gIsSnowLeopard = true;
+	}
+#endif // OS_MAC_OLD
+#endif // Q_OS_MAC
+
+	switch (cPlatform()) {
+	case dbipWindows:
+		gUpdateURL = QUrl(qsl("http://tdesktop.com/win/tupdates/current"));
+#ifndef OS_WIN_STORE
+		gPlatformString = qsl("Windows");
+#else // OS_WIN_STORE
+		gPlatformString = qsl("WinStore");
+#endif // OS_WIN_STORE
+	break;
+	case dbipMac:
+		gUpdateURL = QUrl(qsl("http://tdesktop.com/mac/tupdates/current"));
+#ifndef OS_MAC_STORE
+		gPlatformString = qsl("MacOS");
+#else // OS_MAC_STORE
+		gPlatformString = qsl("MacAppStore");
+#endif // OS_MAC_STORE
+	break;
+	case dbipMacOld:
+		gUpdateURL = QUrl(qsl("http://tdesktop.com/mac32/tupdates/current"));
+		gPlatformString = qsl("MacOSold");
+	break;
+	case dbipLinux64:
+		gUpdateURL = QUrl(qsl("http://tdesktop.com/linux/tupdates/current"));
+		gPlatformString = qsl("Linux64bit");
+	break;
+	case dbipLinux32:
+		gUpdateURL = QUrl(qsl("http://tdesktop.com/linux32/tupdates/current"));
+		gPlatformString = qsl("Linux32bit");
+	break;
+	}
+
+	auto path = Platform::CurrentExecutablePath(_argc, _argv);
+	LOG(("Executable path before check: %1").arg(path));
+	if (!path.isEmpty()) {
+		auto info = QFileInfo(path);
+		if (info.isSymLink()) {
+			info = info.symLinkTarget();
+		}
+		if (info.exists()) {
+			gExeDir = info.absoluteDir().absolutePath() + '/';
+			gExeName = info.fileName();
+		}
+	}
+	if (cExeName().isEmpty()) {
+		LOG(("WARNING: Could not compute executable path, some features will be disabled."));
+	}
+
+	processArguments();
+}
+
+void Launcher::processArguments() {
+		enum class KeyFormat {
+		NoValues,
+		OneValue,
+		AllLeftValues,
+	};
+	auto parseMap = std::map<QByteArray, KeyFormat> {
+		{ "-testmode"   , KeyFormat::NoValues },
+		{ "-debug"      , KeyFormat::NoValues },
+		{ "-many"       , KeyFormat::NoValues },
+		{ "-key"        , KeyFormat::OneValue },
+		{ "-autostart"  , KeyFormat::NoValues },
+		{ "-fixprevious", KeyFormat::NoValues },
+		{ "-cleanup"    , KeyFormat::NoValues },
+		{ "-noupdate"   , KeyFormat::NoValues },
+		{ "-tosettings" , KeyFormat::NoValues },
+		{ "-startintray", KeyFormat::NoValues },
+		{ "-sendpath"   , KeyFormat::AllLeftValues },
+		{ "-workdir"    , KeyFormat::OneValue },
+		{ "--"          , KeyFormat::OneValue },
+	};
+	auto parseResult = QMap<QByteArray, QStringList>();
+	auto parsingKey = QByteArray();
+	auto parsingFormat = KeyFormat::NoValues;
+	for (const auto &argument : _arguments) {
+		switch (parsingFormat) {
+		case KeyFormat::OneValue: {
+			parseResult[parsingKey] = QStringList(argument.mid(0, 8192));
+			parsingFormat = KeyFormat::NoValues;
+		} break;
+		case KeyFormat::AllLeftValues: {
+			parseResult[parsingKey].push_back(argument.mid(0, 8192));
+		} break;
+		case KeyFormat::NoValues: {
+			parsingKey = argument.toLatin1();
+			auto it = parseMap.find(parsingKey);
+			if (it != parseMap.end()) {
+				parsingFormat = it->second;
+				parseResult[parsingKey] = QStringList();
+			}
+		} break;
+		}
+	}
+
+	gTestMode = parseResult.contains("-testmode");
+	gDebug = parseResult.contains("-debug");
+	gManyInstance = parseResult.contains("-many");
+	gKeyFile = parseResult.value("-key", QStringList()).join(QString());
+	gLaunchMode = parseResult.contains("-autostart") ? LaunchModeAutoStart
+		: parseResult.contains("-fixprevious") ? LaunchModeFixPrevious
+		: parseResult.contains("-cleanup") ? LaunchModeCleanup
+		: LaunchModeNormal;
+	gNoStartUpdate = parseResult.contains("-noupdate");
+	gStartToSettings = parseResult.contains("-tosettings");
+	gStartInTray = parseResult.contains("-startintray");
+	gSendPaths = parseResult.value("-sendpath", QStringList());
+	gWorkingDir = parseResult.value("-workdir", QStringList()).join(QString());
+	if (!gWorkingDir.isEmpty()) {
+		if (QDir().exists(gWorkingDir)) {
+			_customWorkingDir = true;
+		} else {
+			gWorkingDir = QString();
+		}
+	}
+	gStartUrl = parseResult.value("--", QStringList()).join(QString());
+}
+
+int Launcher::executeApplication() {
+	MainQueueProcessor processor;
+	Application app(this, _argc, _argv);
+	return app.exec();
+}
+
+} // namespace Core

Telegram/SourceFiles/core/launcher.h

@@ -0,0 +1,71 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop version of Telegram messaging app, see https://telegram.org
+
+Telegram Desktop is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+It is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+In addition, as a special exception, the copyright holders give permission
+to link the code of portions of this program with the OpenSSL library.
+
+Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
+Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
+*/
+#pragma once
+
+namespace Core {
+
+class Launcher {
+public:
+	Launcher(int argc, char *argv[]);
+
+	static std::unique_ptr<Launcher> Create(int argc, char *argv[]);
+
+	int exec();
+
+	QString argumentsString() const;
+	bool customWorkingDir() const {
+		return _customWorkingDir;
+	}
+
+protected:
+	enum class UpdaterLaunch {
+		PerformUpdate,
+		JustRelaunch,
+	};
+
+private:
+	void prepareSettings();
+	void processArguments();
+
+	QStringList readArguments(int argc, char *argv[]) const;
+	virtual base::optional<QStringList> readArgumentsHook(
+			int argc,
+			char *argv[]) const {
+		return base::none;
+	}
+
+	void init();
+	virtual void initHook() {
+	}
+
+	virtual bool launchUpdater(UpdaterLaunch action) = 0;
+
+	int executeApplication();
+
+	int _argc;
+	char **_argv;
+	QStringList _arguments;
+
+	bool _customWorkingDir = false;
+
+};
+
+} // namespace Core

Telegram/SourceFiles/core/main_queue_processor.cpp

@@ -0,0 +1,96 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop version of Telegram messaging app, see https://telegram.org
+
+Telegram Desktop is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+It is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+In addition, as a special exception, the copyright holders give permission
+to link the code of portions of this program with the OpenSSL library.
+
+Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
+Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
+*/
+#include "core/main_queue_processor.h"
+
+namespace Core {
+namespace {
+
+QMutex ProcessorMutex;
+MainQueueProcessor *ProcessorInstance/* = nullptr*/;
+
+constexpr auto kProcessorEvent = QEvent::Type(QEvent::User + 1);
+static_assert(kProcessorEvent < QEvent::MaxUser);
+
+class ProcessorEvent : public QEvent {
+public:
+	ProcessorEvent(void (*callable)(void*), void *argument);
+
+	void process();
+
+private:
+	void (*_callable)(void*) = nullptr;
+	void *_argument = nullptr;
+
+};
+
+ProcessorEvent::ProcessorEvent(void (*callable)(void*), void *argument)
+: QEvent(kProcessorEvent)
+, _callable(callable)
+, _argument(argument) {
+}
+
+void ProcessorEvent::process() {
+	_callable(_argument);
+}
+
+void ProcessMainQueue(void (*callable)(void*), void *argument) {
+	QMutexLocker lock(&ProcessorMutex);
+
+	if (ProcessorInstance) {
+		const auto event = new ProcessorEvent(callable, argument);
+		QCoreApplication::postEvent(ProcessorInstance, event);
+	}
+}
+
+} // namespace
+
+MainQueueProcessor::MainQueueProcessor() {
+	acquire();
+	crl::init_main_queue(ProcessMainQueue);
+}
+
+bool MainQueueProcessor::event(QEvent *event) {
+	if (event->type() == kProcessorEvent) {
+		static_cast<ProcessorEvent*>(event)->process();
+		return true;
+	}
+	return QObject::event(event);
+}
+
+void MainQueueProcessor::acquire() {
+	Expects(ProcessorInstance == nullptr);
+
+	QMutexLocker lock(&ProcessorMutex);
+	ProcessorInstance = this;
+}
+
+void MainQueueProcessor::release() {
+	Expects(ProcessorInstance == this);
+
+	QMutexLocker lock(&ProcessorMutex);
+	ProcessorInstance = nullptr;
+}
+
+MainQueueProcessor::~MainQueueProcessor() {
+	release();
+}
+
+} // namespace

Telegram/SourceFiles/core/main_queue_processor.h

@@ -0,0 +1,40 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop version of Telegram messaging app, see https://telegram.org
+
+Telegram Desktop is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+It is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+In addition, as a special exception, the copyright holders give permission
+to link the code of portions of this program with the OpenSSL library.
+
+Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
+Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
+*/
+#pragma once
+
+namespace Core {
+
+class MainQueueProcessor : public QObject {
+public:
+	MainQueueProcessor();
+
+	~MainQueueProcessor();
+
+protected:
+	bool event(QEvent *event) override;
+
+private:
+	void acquire();
+	void release();
+
+};
+
+} // namespace Core

Telegram/SourceFiles/core/utils.h

@@ -545,11 +545,6 @@ static int32 QuarterArcLength = (FullArcLength / 4);
 static int32 MinArcLength = (FullArcLength / 360);
 static int32 AlmostFullArcLength = (FullArcLength - MinArcLength);
 
-template <typename T, typename... Args>
-inline QSharedPointer<T> MakeShared(Args&&... args) {
-	return QSharedPointer<T>(new T(std::forward<Args>(args)...));
-}
-
 // This pointer is used for global non-POD variables that are allocated
 // on demand by createIfNull(lambda) and are never automatically freed.
 template <typename T>

Telegram/SourceFiles/core/version.h

@@ -24,7 +24,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 
 #define BETA_VERSION_MACRO (0ULL)
 
-constexpr int AppVersion = 1002000;
-constexpr str_const AppVersionStr = "1.2";
+constexpr int AppVersion = 1002006;
+constexpr str_const AppVersionStr = "1.2.6";
 constexpr bool AppAlphaVersion = false;
 constexpr uint64 AppBetaVersion = BETA_VERSION_MACRO;

Telegram/SourceFiles/data/data_document.cpp

@@ -224,7 +224,10 @@ QString documentSaveFilename(const DocumentData *data, bool forceSavingAs = fals
 	return saveFileName(caption, filter, prefix, name, forceSavingAs, dir);
 }
 
-void DocumentOpenClickHandler::doOpen(DocumentData *data, HistoryItem *context, ActionOnLoad action) {
+void DocumentOpenClickHandler::doOpen(
+		not_null<DocumentData*> data,
+		HistoryItem *context,
+		ActionOnLoad action) {
 	if (!data->date) return;
 
 	auto msgId = context ? context->fullId() : FullMsgId();
@@ -329,23 +332,20 @@ void DocumentOpenClickHandler::doOpen(DocumentData *data, HistoryItem *context,
 }
 
 void DocumentOpenClickHandler::onClickImpl() const {
-	const auto item = App::hoveredLinkItem()
-		? App::hoveredLinkItem()
-		: (App::contextItem() ? App::contextItem() : nullptr);
-	const auto action = document()->isVoiceMessage()
+	const auto data = document();
+	const auto action = data->isVoiceMessage()
 		? ActionOnLoadNone
 		: ActionOnLoadOpen;
-	doOpen(document(), item, action);
+	doOpen(data, getActionItem(), action);
 }
 
 void GifOpenClickHandler::onClickImpl() const {
-	const auto item = App::hoveredLinkItem()
-		? App::hoveredLinkItem()
-		: (App::contextItem() ? App::contextItem() : nullptr);
-	doOpen(document(), item, ActionOnLoadPlayInline);
+	doOpen(document(), getActionItem(), ActionOnLoadPlayInline);
 }
 
-void DocumentSaveClickHandler::doSave(DocumentData *data, bool forceSavingAs) {
+void DocumentSaveClickHandler::doSave(
+		not_null<DocumentData*> data,
+		bool forceSavingAs) {
 	if (!data->date) return;
 
 	auto filepath = data->filepath(DocumentData::FilePathResolveSaveFromDataSilent, forceSavingAs);
@@ -369,17 +369,13 @@ void DocumentSaveClickHandler::onClickImpl() const {
 }
 
 void DocumentCancelClickHandler::onClickImpl() const {
-	auto data = document();
+	const auto data = document();
 	if (!data->date) return;
 
 	if (data->uploading()) {
-		if (auto item = App::hoveredLinkItem() ? App::hoveredLinkItem() : (App::contextItem() ? App::contextItem() : nullptr)) {
-			if (auto media = item->getMedia()) {
-				if (media->getDocument() == data) {
-					App::contextItem(item);
-					App::main()->cancelUploadLayer();
-				}
-			}
+		if (const auto item = App::histItemById(context())) {
+			App::contextItem(item);
+			App::main()->cancelUploadLayer();
 		}
 	} else {
 		data->cancel();
@@ -672,12 +668,19 @@ QString DocumentData::loadingFilePath() const {
 }
 
 bool DocumentData::displayLoading() const {
-	return loading() ? (!_loader->loadingLocal() || !_loader->autoLoading()) : uploading();
+	return loading()
+		? (!_loader->loadingLocal() || !_loader->autoLoading())
+		: (uploading() && !waitingForAlbum());
 }
 
 float64 DocumentData::progress() const {
 	if (uploading()) {
-		return snap((size > 0) ? float64(uploadOffset) / size : 0., 0., 1.);
+		if (uploadingData->size > 0) {
+			const auto result = float64(uploadingData->offset)
+				/ uploadingData->size;
+			return snap(result, 0., 1.);
+		}
+		return 0.;
 	}
 	return loading() ? _loader->currentProgress() : (loaded() ? 1. : 0.);
 }
@@ -687,7 +690,17 @@ int32 DocumentData::loadOffset() const {
 }
 
 bool DocumentData::uploading() const {
-	return status == FileUploading;
+	return (uploadingData != nullptr);
+}
+
+void DocumentData::setWaitingForAlbum() {
+	if (uploading()) {
+		uploadingData->waitingForAlbum = true;
+	}
+}
+
+bool DocumentData::waitingForAlbum() const {
+	return uploading() && uploadingData->waitingForAlbum;
 }
 
 void DocumentData::save(const QString &toFile, ActionOnLoad action, const FullMsgId &actionMsgId, LoadFromCloudSetting fromCloud, bool autoLoading) {

Telegram/SourceFiles/data/data_document.h

@@ -125,6 +125,9 @@ public:
 	int32 loadOffset() const;
 	bool uploading() const;
 
+	void setWaitingForAlbum();
+	bool waitingForAlbum() const;
+
 	QByteArray data() const;
 	const FileLocation &location(bool check = false) const;
 	void setLocation(const FileLocation &loc);
@@ -241,7 +244,8 @@ public:
 	int32 size = 0;
 
 	FileStatus status = FileReady;
-	int32 uploadOffset = 0;
+
+	std::unique_ptr<Data::UploadState> uploadingData;
 
 	int32 md5[8];
 
@@ -309,17 +313,20 @@ private:
 VoiceWaveform documentWaveformDecode(const QByteArray &encoded5bit);
 QByteArray documentWaveformEncode5bit(const VoiceWaveform &waveform);
 
-class DocumentClickHandler : public LeftButtonClickHandler {
+class DocumentClickHandler : public FileClickHandler {
 public:
-	DocumentClickHandler(DocumentData *document)
-	: _document(document) {
+	DocumentClickHandler(
+		not_null<DocumentData*> document,
+		FullMsgId context = FullMsgId())
+	: FileClickHandler(context)
+	, _document(document) {
 	}
-	DocumentData *document() const {
+	not_null<DocumentData*> document() const {
 		return _document;
 	}
 
 private:
-	DocumentData *_document;
+	not_null<DocumentData*> _document;
 
 };
 
@@ -327,7 +334,7 @@ class DocumentSaveClickHandler : public DocumentClickHandler {
 public:
 	using DocumentClickHandler::DocumentClickHandler;
 	static void doSave(
-		DocumentData *document,
+		not_null<DocumentData*> document,
 		bool forceSavingAs = false);
 
 protected:
@@ -339,7 +346,7 @@ class DocumentOpenClickHandler : public DocumentClickHandler {
 public:
 	using DocumentClickHandler::DocumentClickHandler;
 	static void doOpen(
-		DocumentData *document,
+		not_null<DocumentData*> document,
 		HistoryItem *context,
 		ActionOnLoad action = ActionOnLoadOpen);
 

Telegram/SourceFiles/data/data_peer.cpp

@@ -36,6 +36,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "mainwindow.h"
 #include "window/window_controller.h"
 #include "ui/empty_userpic.h"
+#include "ui/text_options.h"
 
 namespace {
 
@@ -100,7 +101,7 @@ void PeerClickHandler::onClick(Qt::MouseButton button) const {
 PeerData::PeerData(const PeerId &id)
 : id(id)
 , _userpicEmpty(createEmptyUserpic()) {
-	nameText.setText(st::msgNameStyle, QString(), _textNameOptions);
+	nameText.setText(st::msgNameStyle, QString(), Ui::NameTextOptions());
 }
 
 void PeerData::updateNameDelayed(
@@ -124,7 +125,7 @@ void PeerData::updateNameDelayed(
 
 	++nameVersion;
 	name = newName;
-	nameText.setText(st::msgNameStyle, name, _textNameOptions);
+	nameText.setText(st::msgNameStyle, name, Ui::NameTextOptions());
 	refreshEmptyUserpic();
 
 	Notify::PeerUpdate update(this);
@@ -164,7 +165,7 @@ void PeerData::refreshEmptyUserpic() const {
 }
 
 ClickHandlerPtr PeerData::createOpenLink() {
-	return MakeShared<PeerClickHandler>(this);
+	return std::make_shared<PeerClickHandler>(this);
 }
 
 void PeerData::setUserpic(
@@ -277,12 +278,7 @@ void PeerData::updateUserpic(
 	const auto size = kUserpicSize;
 	const auto loc = StorageImageLocation::FromMTP(size, size, location);
 	const auto photo = loc.isNull() ? ImagePtr() : ImagePtr(loc);
-	if (_userpicPhotoId != photoId
-		|| _userpic.v() != photo.v()
-		|| _userpicLocation != loc) {
-		setUserpic(photoId, loc, photo);
-		Notify::peerUpdatedDelayed(this, UpdateFlag::PhotoChanged);
-	}
+	setUserpicChecked(photoId, loc, photo);
 }
 
 void PeerData::clearUserpic() {
@@ -300,6 +296,19 @@ void PeerData::clearUserpic() {
 		}
 		return ImagePtr();
 	}();
+	setUserpicChecked(photoId, loc, photo);
+}
+
+void PeerData::setUserpicChecked(
+		PhotoId photoId,
+		const StorageImageLocation &location,
+		ImagePtr userpic) {
+	if (_userpicPhotoId != photoId
+		|| _userpic.v() != userpic.v()
+		|| _userpicLocation != location) {
+		setUserpic(photoId, location, userpic);
+		Notify::peerUpdatedDelayed(this, UpdateFlag::PhotoChanged);
+	}
 }
 
 void PeerData::fillNames() {
@@ -343,7 +352,10 @@ PeerData::~PeerData() = default;
 
 const Text &BotCommand::descriptionText() const {
 	if (_descriptionText.isEmpty() && !_description.isEmpty()) {
-		_descriptionText.setText(st::defaultTextStyle, _description, _textNameOptions);
+		_descriptionText.setText(
+			st::defaultTextStyle,
+			_description,
+			Ui::NameTextOptions());
 	}
 	return _descriptionText;
 }
@@ -483,7 +495,10 @@ void UserData::setBotInfo(const MTPBotInfo &info) {
 void UserData::setNameOrPhone(const QString &newNameOrPhone) {
 	if (nameOrPhone != newNameOrPhone) {
 		nameOrPhone = newNameOrPhone;
-		phoneText.setText(st::msgNameStyle, nameOrPhone, _textNameOptions);
+		phoneText.setText(
+			st::msgNameStyle,
+			nameOrPhone,
+			Ui::NameTextOptions());
 	}
 }
 
@@ -568,16 +583,18 @@ void ChatData::setInviteLink(const QString &newInviteLink) {
 ChannelData::ChannelData(const PeerId &id)
 : PeerData(id)
 , inputChannel(MTP_inputChannel(MTP_int(bareId()), MTP_long(0))) {
-	Data::PeerFlagValue(this, MTPDchannel::Flag::f_megagroup)
-		| rpl::start_with_next([this](bool megagroup) {
-			if (megagroup) {
-				if (!mgInfo) {
-					mgInfo = std::make_unique<MegagroupInfo>();
-				}
-			} else if (mgInfo) {
-				mgInfo = nullptr;
+	Data::PeerFlagValue(
+		this,
+		MTPDchannel::Flag::f_megagroup
+	) | rpl::start_with_next([this](bool megagroup) {
+		if (megagroup) {
+			if (!mgInfo) {
+				mgInfo = std::make_unique<MegagroupInfo>();
 			}
-		}, _lifetime);
+		} else if (mgInfo) {
+			mgInfo = nullptr;
+		}
+	}, _lifetime);
 }
 
 void ChannelData::setPhoto(const MTPChatPhoto &photo) {
@@ -784,9 +801,12 @@ void ChannelData::applyEditBanned(not_null<UserData*> user, const MTPChannelBann
 		}
 		Data::ChannelAdminChanges(this).feed(peerToUser(user->id), false);
 	} else {
-		if (isKicked && membersCount() > 1) {
-			setMembersCount(membersCount() - 1);
-			flags |= Notify::PeerUpdate::Flag::MembersChanged;
+		if (isKicked) {
+			if (membersCount() > 1) {
+				setMembersCount(membersCount() - 1);
+				flags |= Notify::PeerUpdate::Flag::MembersChanged;
+			}
+			setKickedCount(kickedCount() + 1);
 		}
 	}
 	Notify::peerUpdatedDelayed(this, flags);

Telegram/SourceFiles/data/data_peer.h

@@ -238,6 +238,11 @@ private:
 	std::unique_ptr<Ui::EmptyUserpic> createEmptyUserpic() const;
 	void refreshEmptyUserpic() const;
 
+	void setUserpicChecked(
+		PhotoId photoId,
+		const StorageImageLocation &location,
+		ImagePtr userpic);
+
 	static constexpr auto kUnknownPhotoId = PhotoId(0xFFFFFFFFFFFFFFFFULL);
 
 	ImagePtr _userpic;

Telegram/SourceFiles/data/data_peer_values.cpp

@@ -20,7 +20,67 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 */
 #include "data/data_peer_values.h"
 
+#include "lang/lang_keys.h"
+
 namespace Data {
+namespace {
+
+constexpr auto kMinOnlineChangeTimeout = TimeMs(1000);
+constexpr auto kMaxOnlineChangeTimeout = 86400 * TimeMs(1000);
+
+int OnlinePhraseChangeInSeconds(TimeId online, TimeId now) {
+	if (online <= 0) {
+		if (-online > now) {
+			return (-online - now);
+		}
+		return std::numeric_limits<int32>::max();
+	}
+	if (online > now) {
+		return online - now;
+	}
+	const auto minutes = (now - online) / 60;
+	if (minutes < 60) {
+		return (minutes + 1) * 60 - (now - online);
+	}
+	const auto hours = (now - online) / 3600;
+	if (hours < 12) {
+		return (hours + 1) * 3600 - (now - online);
+	}
+	const auto nowFull = ::date(now);
+	const auto tomorrow = QDateTime(nowFull.date().addDays(1));
+	return static_cast<int32>(nowFull.secsTo(tomorrow));
+}
+
+base::optional<QString> OnlineTextSpecial(not_null<UserData*> user) {
+	if (isNotificationsUser(user->id)) {
+		return lang(lng_status_service_notifications);
+	} else if (user->botInfo) {
+		return lang(lng_status_bot);
+	} else if (isServiceUser(user->id)) {
+		return lang(lng_status_support);
+	}
+	return base::none;
+}
+
+base::optional<QString> OnlineTextCommon(TimeId online, TimeId now) {
+	if (online <= 0) {
+		switch (online) {
+		case 0:
+		case -1: return lang(lng_status_offline);
+		case -2: return lang(lng_status_recently);
+		case -3: return lang(lng_status_last_week);
+		case -4: return lang(lng_status_last_month);
+		}
+		return (-online > now)
+			? lang(lng_status_online)
+			: lang(lng_status_recently);
+	} else if (online > now) {
+		return lang(lng_status_online);
+	}
+	return base::none;
+}
+
+} // namespace
 
 inline auto AdminRightsValue(not_null<ChannelData*> channel) {
 	return channel->adminRightsValue();
@@ -123,4 +183,129 @@ rpl::producer<bool> CanWriteValue(not_null<PeerData*> peer) {
 	Unexpected("Bad peer value in CanWriteValue()");
 }
 
+TimeId SortByOnlineValue(not_null<UserData*> user, TimeId now) {
+	if (isServiceUser(user->id) || user->botInfo) {
+		return -1;
+	}
+	const auto online = user->onlineTill;
+	const auto fromDate = [](const QDate &date) {
+		const auto shift = (unixtime() - myunixtime());
+		return static_cast<TimeId>(QDateTime(date).toTime_t()) + shift;
+	};
+	if (online <= 0) {
+		switch (online) {
+		case 0:
+		case -1: return online;
+
+		case -2: {
+			const auto recently = date(now).date().addDays(-3);
+			return fromDate(recently);
+		} break;
+
+		case -3: {
+			const auto weekago = date(now).date().addDays(-7);
+			return fromDate(weekago);
+		} break;
+
+		case -4: {
+			const auto monthago = date(now).date().addDays(-30);
+			return fromDate(monthago);
+		} break;
+		}
+		return -online;
+	}
+	return online;
+}
+
+TimeMs OnlineChangeTimeout(TimeId online, TimeId now) {
+	const auto result = OnlinePhraseChangeInSeconds(online, now);
+	Assert(result >= 0);
+	return snap(
+		result * TimeMs(1000),
+		kMinOnlineChangeTimeout,
+		kMaxOnlineChangeTimeout);
+}
+
+TimeMs OnlineChangeTimeout(not_null<UserData*> user, TimeId now) {
+	if (isServiceUser(user->id) || user->botInfo) {
+		return kMaxOnlineChangeTimeout;
+	}
+	return OnlineChangeTimeout(user->onlineTill, now);
+}
+
+QString OnlineText(TimeId online, TimeId now) {
+	if (const auto common = OnlineTextCommon(online, now)) {
+		return *common;
+	}
+	const auto minutes = (now - online) / 60;
+	if (!minutes) {
+		return lang(lng_status_lastseen_now);
+	} else if (minutes < 60) {
+		return lng_status_lastseen_minutes(lt_count, minutes);
+	}
+	const auto hours = (now - online) / 3600;
+	if (hours < 12) {
+		return lng_status_lastseen_hours(lt_count, hours);
+	}
+	const auto onlineFull = ::date(online);
+	const auto nowFull = ::date(now);
+	if (onlineFull.date() == nowFull.date()) {
+		const auto onlineTime = onlineFull.time().toString(cTimeFormat());
+		return lng_status_lastseen_today(lt_time, onlineTime);
+	} else if (onlineFull.date().addDays(1) == nowFull.date()) {
+		const auto onlineTime = onlineFull.time().toString(cTimeFormat());
+		return lng_status_lastseen_yesterday(lt_time, onlineTime);
+	}
+	const auto date = onlineFull.date().toString(qsl("dd.MM.yy"));
+	return lng_status_lastseen_date(lt_date, date);
+}
+
+QString OnlineText(not_null<UserData*> user, TimeId now) {
+	if (const auto special = OnlineTextSpecial(user)) {
+		return *special;
+	}
+	return OnlineText(user->onlineTill, now);
+}
+
+QString OnlineTextFull(not_null<UserData*> user, TimeId now) {
+	if (const auto special = OnlineTextSpecial(user)) {
+		return *special;
+	} else if (const auto common = OnlineTextCommon(user->onlineTill, now)) {
+		return *common;
+	}
+	const auto onlineFull = ::date(user->onlineTill);
+	const auto nowFull = ::date(now);
+	if (onlineFull.date() == nowFull.date()) {
+		const auto onlineTime = onlineFull.time().toString(cTimeFormat());
+		return lng_status_lastseen_today(lt_time, onlineTime);
+	} else if (onlineFull.date().addDays(1) == nowFull.date()) {
+		const auto onlineTime = onlineFull.time().toString(cTimeFormat());
+		return lng_status_lastseen_yesterday(lt_time, onlineTime);
+	}
+	const auto date = onlineFull.date().toString(qsl("dd.MM.yy"));
+	const auto time = onlineFull.time().toString(cTimeFormat());
+	return lng_status_lastseen_date_time(lt_date, date, lt_time, time);
+}
+
+bool OnlineTextActive(TimeId online, TimeId now) {
+	if (online <= 0) {
+		switch (online) {
+		case 0:
+		case -1:
+		case -2:
+		case -3:
+		case -4: return false;
+		}
+		return (-online > now);
+	}
+	return (online > now);
+}
+
+bool OnlineTextActive(not_null<UserData*> user, TimeId now) {
+	if (isServiceUser(user->id) || user->botInfo) {
+		return false;
+	}
+	return OnlineTextActive(user->onlineTill, now);
+}
+
 } // namespace Data

Telegram/SourceFiles/data/data_peer_values.h

@@ -31,23 +31,25 @@ template <typename ChangeType, typename Error, typename Generator>
 inline auto FlagsValueWithMask(
 		rpl::producer<ChangeType, Error, Generator> &&value,
 		typename ChangeType::Type mask) {
-	return std::move(value)
-		| rpl::filter([mask](const ChangeType &change) {
-			return change.diff & mask;
-		})
-		| rpl::map([mask](const ChangeType &change) {
-			return change.value & mask;
-		});
+	return std::move(
+		value
+	) | rpl::filter([mask](const ChangeType &change) {
+		return change.diff & mask;
+	}) | rpl::map([mask](const ChangeType &change) {
+		return change.value & mask;
+	});
 }
 
 template <typename ChangeType, typename Error, typename Generator>
 inline auto SingleFlagValue(
 		rpl::producer<ChangeType, Error, Generator> &&value,
 		typename ChangeType::Enum flag) {
-	return FlagsValueWithMask(std::move(value), flag)
-		| rpl::map([flag](typename ChangeType::Type value) {
-			return !!value;
-		});
+	return FlagsValueWithMask(
+		std::move(value),
+		flag
+	) | rpl::map([flag](typename ChangeType::Type value) {
+		return !!value;
+	});
 }
 
 template <
@@ -121,4 +123,13 @@ rpl::producer<bool> CanWriteValue(ChatData *chat);
 rpl::producer<bool> CanWriteValue(ChannelData *channel);
 rpl::producer<bool> CanWriteValue(not_null<PeerData*> peer);
 
+TimeId SortByOnlineValue(not_null<UserData*> user, TimeId now);
+TimeMs OnlineChangeTimeout(TimeId online, TimeId now);
+TimeMs OnlineChangeTimeout(not_null<UserData*> user, TimeId now);
+QString OnlineText(TimeId online, TimeId now);
+QString OnlineText(not_null<UserData*> user, TimeId now);
+QString OnlineTextFull(not_null<UserData*> user, TimeId now);
+bool OnlineTextActive(TimeId online, TimeId now);
+bool OnlineTextActive(not_null<UserData*> user, TimeId now);
+
 } // namespace Data

Telegram/SourceFiles/data/data_photo.cpp

@@ -63,7 +63,9 @@ bool PhotoData::loading() const {
 }
 
 bool PhotoData::displayLoading() const {
-	return full->loading() ? full->displayLoading() : uploading();
+	return full->loading()
+		? full->displayLoading()
+		: (uploading() && !waitingForAlbum());
 }
 
 void PhotoData::cancel() {
@@ -91,12 +93,22 @@ float64 PhotoData::progress() const {
 	return full->progress();
 }
 
+void PhotoData::setWaitingForAlbum() {
+	if (uploading()) {
+		uploadingData->waitingForAlbum = true;
+	}
+}
+
+bool PhotoData::waitingForAlbum() const {
+	return uploading() && uploadingData->waitingForAlbum;
+}
+
 int32 PhotoData::loadOffset() const {
 	return full->loadOffset();
 }
 
 bool PhotoData::uploading() const {
-	return !!uploadingData;
+	return (uploadingData != nullptr);
 }
 
 void PhotoData::forget() {
@@ -121,7 +133,7 @@ ImagePtr PhotoData::makeReplyPreview() {
 }
 
 void PhotoOpenClickHandler::onClickImpl() const {
-	Messenger::Instance().showPhoto(this, App::hoveredLinkItem() ? App::hoveredLinkItem() : App::contextItem());
+	Messenger::Instance().showPhoto(this);
 }
 
 void PhotoSaveClickHandler::onClickImpl() const {
@@ -136,13 +148,9 @@ void PhotoCancelClickHandler::onClickImpl() const {
 	if (!data->date) return;
 
 	if (data->uploading()) {
-		if (auto item = App::hoveredLinkItem() ? App::hoveredLinkItem() : (App::contextItem() ? App::contextItem() : nullptr)) {
-			if (auto media = item->getMedia()) {
-				if (media->type() == MediaTypePhoto && static_cast<HistoryPhoto*>(media)->photo() == data) {
-					App::contextItem(item);
-					App::main()->cancelUploadLayer();
-				}
-			}
+		if (const auto item = App::histItemById(context())) {
+			App::contextItem(item);
+			App::main()->cancelUploadLayer();
 		}
 	} else {
 		data->cancel();

Telegram/SourceFiles/data/data_photo.h

@@ -44,6 +44,9 @@ public:
 	int32 loadOffset() const;
 	bool uploading() const;
 
+	void setWaitingForAlbum();
+	bool waitingForAlbum() const;
+
 	void forget();
 	ImagePtr makeReplyPreview();
 
@@ -57,25 +60,22 @@ public:
 	PeerData *peer = nullptr; // for chat and channel photos connection
 	// geo, caption
 
-	struct UploadingData {
-		UploadingData(int size) : size(size) {
-		}
-		int offset = 0;
-		int size = 0;
-	};
-	std::unique_ptr<UploadingData> uploadingData;
+	std::unique_ptr<Data::UploadState> uploadingData;
 
 private:
 	void notifyLayoutChanged() const;
 
 };
 
-class PhotoClickHandler : public LeftButtonClickHandler {
+class PhotoClickHandler : public FileClickHandler {
 public:
 	PhotoClickHandler(
 		not_null<PhotoData*> photo,
+		FullMsgId context = FullMsgId(),
 		PeerData *peer = nullptr)
-	: _photo(photo), _peer(peer) {
+	: FileClickHandler(context)
+	, _photo(photo)
+	, _peer(peer) {
 	}
 	not_null<PhotoData*> photo() const {
 		return _photo;
@@ -86,7 +86,7 @@ public:
 
 private:
 	not_null<PhotoData*> _photo;
-	PeerData *_peer;
+	PeerData *_peer = nullptr;
 
 };
 

Telegram/SourceFiles/data/data_search_controller.cpp

@@ -36,13 +36,15 @@ MTPmessages_Search PrepareSearchRequest(
 		const QString &query,
 		MsgId messageId,
 		SparseIdsLoadDirection direction) {
-	auto filter = [&] {
+	const auto filter = [&] {
 		using Type = Storage::SharedMediaType;
 		switch (type) {
 		case Type::Photo:
 			return MTP_inputMessagesFilterPhotos();
 		case Type::Video:
 			return MTP_inputMessagesFilterVideo();
+		case Type::PhotoVideo:
+			return MTP_inputMessagesFilterPhotoVideo();
 		case Type::MusicFile:
 			return MTP_inputMessagesFilterMusic();
 		case Type::File:
@@ -63,10 +65,10 @@ MTPmessages_Search PrepareSearchRequest(
 		return MTP_inputMessagesFilterEmpty();
 	}();
 
-	auto minId = 0;
-	auto maxId = 0;
-	auto limit = messageId ? kSharedMediaLimit : 0;
-	auto offsetId = [&] {
+	const auto minId = 0;
+	const auto maxId = 0;
+	const auto limit = messageId ? kSharedMediaLimit : 0;
+	const auto offsetId = [&] {
 		switch (direction) {
 		case SparseIdsLoadDirection::Before:
 		case SparseIdsLoadDirection::Around: return messageId;
@@ -74,7 +76,7 @@ MTPmessages_Search PrepareSearchRequest(
 		}
 		Unexpected("Direction in PrepareSearchRequest");
 	}();
-	auto addOffset = [&] {
+	const auto addOffset = [&] {
 		switch (direction) {
 		case SparseIdsLoadDirection::Before: return 0;
 		case SparseIdsLoadDirection::Around: return -limit / 2;
@@ -130,7 +132,8 @@ SearchResult ParseSearchResult(
 			if (auto channel = peer->asChannel()) {
 				channel->ptsReceived(d.vpts.v);
 			} else {
-				LOG(("API Error: received messages.channelMessages when no channel was passed! (ParseSearchResult)"));
+				LOG(("API Error: received messages.channelMessages when "
+					"no channel was passed! (ParseSearchResult)"));
 			}
 			App::feedUsers(d.vusers);
 			App::feedChats(d.vchats);
@@ -139,7 +142,8 @@ SearchResult ParseSearchResult(
 		} break;
 
 		case mtpc_messages_messagesNotModified: {
-			LOG(("API Error: received messages.messagesNotModified! (ParseSearchResult)"));
+			LOG(("API Error: received messages.messagesNotModified! "
+				"(ParseSearchResult)"));
 			return (const QVector<MTPMessage>*)nullptr;
 		} break;
 		}
@@ -260,50 +264,46 @@ rpl::producer<SparseIdsSlice> SearchController::simpleIdsSlice(
 			aroundId,
 			limitBefore,
 			limitAfter);
-		builder->insufficientAround()
-			| rpl::start_with_next([=](
-					const SparseIdsSliceBuilder::AroundData &data) {
-				requestMore(data, query, listData);
-			}, lifetime);
+		builder->insufficientAround(
+		) | rpl::start_with_next([=](
+				const SparseIdsSliceBuilder::AroundData &data) {
+			requestMore(data, query, listData);
+		}, lifetime);
 
 		auto pushNextSnapshot = [=] {
 			consumer.put_next(builder->snapshot());
 		};
 
-		listData->list.sliceUpdated()
-			| rpl::filter([=](const SliceUpdate &update) {
-				return builder->applyUpdate(update);
-			})
-			| rpl::start_with_next(pushNextSnapshot, lifetime);
+		listData->list.sliceUpdated(
+		) | rpl::filter([=](const SliceUpdate &update) {
+			return builder->applyUpdate(update);
+		}) | rpl::start_with_next(pushNextSnapshot, lifetime);
 
-		Auth().data().itemRemoved()
-			| rpl::filter([=](not_null<const HistoryItem*> item) {
-				return (item->history()->peer->id == peerId);
-			})
-			| rpl::filter([=](not_null<const HistoryItem*> item) {
-				return builder->removeOne(item->id);
-			})
-			| rpl::start_with_next(pushNextSnapshot, lifetime);
+		Auth().data().itemRemoved(
+		) | rpl::filter([=](not_null<const HistoryItem*> item) {
+			return (item->history()->peer->id == peerId);
+		}) | rpl::filter([=](not_null<const HistoryItem*> item) {
+			return builder->removeOne(item->id);
+		}) | rpl::start_with_next(pushNextSnapshot, lifetime);
 
-		Auth().data().historyCleared()
-			| rpl::filter([=](not_null<const History*> history) {
-				return (history->peer->id == peerId);
-			})
-			| rpl::filter([=] { return builder->removeAll(); })
-			| rpl::start_with_next(pushNextSnapshot, lifetime);
+		Auth().data().historyCleared(
+		) | rpl::filter([=](not_null<const History*> history) {
+			return (history->peer->id == peerId);
+		}) | rpl::filter([=] {
+			return builder->removeAll();
+		}) | rpl::start_with_next(pushNextSnapshot, lifetime);
 
 		using Result = Storage::SparseIdsListResult;
 		listData->list.query(Storage::SparseIdsListQuery(
 			aroundId,
 			limitBefore,
-			limitAfter))
-			| rpl::filter([=](const Result &result) {
-				return builder->applyInitial(result);
-			})
-			| rpl::start_with_next_done(
-				pushNextSnapshot,
-				[=] { builder->checkInsufficient(); },
-				lifetime);
+			limitAfter
+		)) | rpl::filter([=](const Result &result) {
+			return builder->applyInitial(result);
+		}) | rpl::start_with_next_done(
+			pushNextSnapshot,
+			[=] { builder->checkInsufficient(); },
+			lifetime);
 
 		return lifetime;
 	};

Telegram/SourceFiles/data/data_shared_media.cpp

@@ -93,56 +93,50 @@ rpl::producer<SparseIdsSlice> SharedMediaViewer(
 				data.aroundId,
 				data.direction);
 		};
-		builder->insufficientAround()
-			| rpl::start_with_next(requestMediaAround, lifetime);
+		builder->insufficientAround(
+		) | rpl::start_with_next(requestMediaAround, lifetime);
 
 		auto pushNextSnapshot = [=] {
 			consumer.put_next(builder->snapshot());
 		};
 
 		using SliceUpdate = Storage::SharedMediaSliceUpdate;
-		Auth().storage().sharedMediaSliceUpdated()
-			| rpl::filter([=](const SliceUpdate &update) {
-				return (update.peerId == key.peerId)
-					&& (update.type == key.type);
-			})
-			| rpl::filter([=](const SliceUpdate &update) {
-				return builder->applyUpdate(update.data);
-			})
-			| rpl::start_with_next(pushNextSnapshot, lifetime);
+		Auth().storage().sharedMediaSliceUpdated(
+		) | rpl::filter([=](const SliceUpdate &update) {
+			return (update.peerId == key.peerId)
+				&& (update.type == key.type);
+		}) | rpl::filter([=](const SliceUpdate &update) {
+			return builder->applyUpdate(update.data);
+		}) | rpl::start_with_next(pushNextSnapshot, lifetime);
 
 		using OneRemoved = Storage::SharedMediaRemoveOne;
-		Auth().storage().sharedMediaOneRemoved()
-			| rpl::filter([=](const OneRemoved &update) {
-				return (update.peerId == key.peerId)
-					&& update.types.test(key.type);
-			})
-			| rpl::filter([=](const OneRemoved &update) {
-				return builder->removeOne(update.messageId);
-			})
-			| rpl::start_with_next(pushNextSnapshot, lifetime);
+		Auth().storage().sharedMediaOneRemoved(
+		) | rpl::filter([=](const OneRemoved &update) {
+			return (update.peerId == key.peerId)
+				&& update.types.test(key.type);
+		}) | rpl::filter([=](const OneRemoved &update) {
+			return builder->removeOne(update.messageId);
+		}) | rpl::start_with_next(pushNextSnapshot, lifetime);
 
 		using AllRemoved = Storage::SharedMediaRemoveAll;
-		Auth().storage().sharedMediaAllRemoved()
-			| rpl::filter([=](const AllRemoved &update) {
-				return (update.peerId == key.peerId);
-			})
-			| rpl::filter([=] { return builder->removeAll(); })
-			| rpl::start_with_next(pushNextSnapshot, lifetime);
+		Auth().storage().sharedMediaAllRemoved(
+		) | rpl::filter([=](const AllRemoved &update) {
+			return (update.peerId == key.peerId);
+		}) | rpl::filter([=] {
+			return builder->removeAll();
+		}) | rpl::start_with_next(pushNextSnapshot, lifetime);
 
 		using Result = Storage::SharedMediaResult;
-		Auth().storage().query(
-			Storage::SharedMediaQuery(
-				key,
-				limitBefore,
-				limitAfter))
-			| rpl::filter([=](const Result &result) {
-				return builder->applyInitial(result);
-			})
-			| rpl::start_with_next_done(
-				pushNextSnapshot,
-				[=] { builder->checkInsufficient(); },
-				lifetime);
+		Auth().storage().query(Storage::SharedMediaQuery(
+			key,
+			limitBefore,
+			limitAfter
+		)) | rpl::filter([=](const Result &result) {
+			return builder->applyInitial(result);
+		}) | rpl::start_with_next_done(
+			pushNextSnapshot,
+			[=] { builder->checkInsufficient(); },
+			lifetime);
 
 		return lifetime;
 	};
@@ -290,9 +284,7 @@ base::optional<bool> SharedMediaWithLastSlice::IsLastIsolated(
 		| [](FullMsgId msgId) {	return App::histItemById(msgId); }
 		| [](HistoryItem *item) { return item ? item->getMedia() : nullptr; }
 		| [](HistoryMedia *media) {
-			return (media && media->type() == MediaTypePhoto)
-				? static_cast<HistoryPhoto*>(media)->photo()
-				: nullptr;
+			return media ? media->getPhoto() : nullptr;
 		}
 		| [](PhotoData *photo) { return photo ? photo->id : 0; }
 		| [&](PhotoId photoId) { return *lastPeerPhotoId != photoId; };
@@ -355,9 +347,12 @@ rpl::producer<SharedMediaWithLastSlice> SharedMediaWithLastReversedViewer(
 		SharedMediaWithLastSlice::Key key,
 		int limitBefore,
 		int limitAfter) {
-	return SharedMediaWithLastViewer(key, limitBefore, limitAfter)
-		| rpl::map([](SharedMediaWithLastSlice &&slice) {
-			slice.reverse();
-			return std::move(slice);
-		});
+	return SharedMediaWithLastViewer(
+		key,
+		limitBefore,
+		limitAfter
+	) | rpl::map([](SharedMediaWithLastSlice &&slice) {
+		slice.reverse();
+		return std::move(slice);
+	});
 }

Telegram/SourceFiles/data/data_sparse_ids.cpp

@@ -415,13 +415,14 @@ rpl::producer<SparseIdsMergedSlice> SparseIdsMergedSlice::CreateViewer(
 			limitAfter
 		);
 		if (!key.migratedPeerId) {
-			return std::move(partViewer)
-				| rpl::start_with_next([=](SparseIdsSlice &&part) {
-					consumer.put_next(SparseIdsMergedSlice(
-						key,
-						std::move(part),
-						base::none));
-				});
+			return std::move(
+				partViewer
+			) | rpl::start_with_next([=](SparseIdsSlice &&part) {
+				consumer.put_next(SparseIdsMergedSlice(
+					key,
+					std::move(part),
+					base::none));
+			});
 		}
 		auto migratedViewer = simpleViewer(
 			key.migratedPeerId,

Telegram/SourceFiles/data/data_types.cpp

@@ -53,3 +53,13 @@ void MessageCursor::applyTo(QTextEdit *edit) {
 		scrollbar->setValue(scroll);
 	}
 }
+
+HistoryItem *FileClickHandler::getActionItem() const {
+	return context()
+		? App::histItemById(context())
+		: App::hoveredLinkItem()
+		? App::hoveredLinkItem()
+		: App::contextItem()
+		? App::contextItem()
+		: nullptr;
+}

Telegram/SourceFiles/data/data_types.h

@@ -20,6 +20,18 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 */
 #pragma once
 
+namespace Data {
+
+struct UploadState {
+	UploadState(int size) : size(size) {
+	}
+	int offset = 0;
+	int size = 0;
+	bool waitingForAlbum = false;
+};
+
+} // namespace Data
+
 class PeerData;
 class UserData;
 class ChatData;
@@ -241,7 +253,6 @@ enum LocationType {
 enum FileStatus {
 	FileDownloadFailed = -2,
 	FileUploadFailed = -1,
-	FileUploading = 0,
 	FileReady = 1,
 };
 
@@ -390,3 +401,24 @@ struct SendAction {
 	int progress = 0;
 
 };
+
+class FileClickHandler : public LeftButtonClickHandler {
+public:
+	FileClickHandler(FullMsgId context) : _context(context) {
+	}
+
+	void setMessageId(FullMsgId context) {
+		_context = context;
+	}
+
+	FullMsgId context() const {
+		return _context;
+	}
+
+protected:
+	HistoryItem *getActionItem() const;
+
+private:
+	FullMsgId _context;
+
+};

Telegram/SourceFiles/data/data_user_photos.cpp

@@ -233,11 +233,11 @@ rpl::producer<UserPhotosSlice> UserPhotosViewer(
 		Auth().storage().query(Storage::UserPhotosQuery(
 			key,
 			limitBefore,
-			limitAfter))
-			| rpl::start_with_next_done(
-				applyUpdate,
-				[=] { builder->checkInsufficientPhotos(); },
-				lifetime);
+			limitAfter
+		)) | rpl::start_with_next_done(
+			applyUpdate,
+			[=] { builder->checkInsufficientPhotos(); },
+			lifetime);
 
 		return lifetime;
 	};
@@ -248,9 +248,12 @@ rpl::producer<UserPhotosSlice> UserPhotosReversedViewer(
 		UserPhotosSlice::Key key,
 		int limitBefore,
 		int limitAfter) {
-	return UserPhotosViewer(key, limitBefore, limitAfter)
-		| rpl::map([](UserPhotosSlice &&slice) {
-			slice.reverse();
-			return std::move(slice);
-		});
+	return UserPhotosViewer(
+		key,
+		limitBefore,
+		limitAfter
+	) | rpl::map([](UserPhotosSlice &&slice) {
+		slice.reverse();
+		return std::move(slice);
+	});
 }

Telegram/SourceFiles/dialogs/dialogs_inner_widget.cpp

@@ -28,6 +28,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "styles/style_window.h"
 #include "ui/widgets/buttons.h"
 #include "ui/widgets/popup_menu.h"
+#include "ui/text_options.h"
 #include "data/data_drafts.h"
 #include "lang/lang_keys.h"
 #include "mainwindow.h"
@@ -36,6 +37,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "apiwrap.h"
 #include "window/themes/window_theme.h"
 #include "observer_peer.h"
+#include "chat_helpers/stickers.h"
 #include "auth_session.h"
 #include "window/notifications_manager.h"
 #include "window/window_controller.h"
@@ -95,16 +97,16 @@ DialogsInner::DialogsInner(QWidget *parent, not_null<Window::Controller*> contro
 	_cancelSearchFromUser->hide();
 
 	subscribe(Auth().downloaderTaskFinished(), [this] { update(); });
-	Auth().data().itemRemoved()
-		| rpl::start_with_next(
-			[this](auto item) { itemRemoved(item); },
-			lifetime());
-	Auth().data().itemRepaintRequest()
-		| rpl::start_with_next([this](auto item) {
-			if (item->history()->lastMsg == item) {
-				item->history()->updateChatListEntry();
-			}
-		}, lifetime());
+	Auth().data().itemRemoved(
+	) | rpl::start_with_next(
+		[this](auto item) { itemRemoved(item); },
+		lifetime());
+	Auth().data().itemRepaintRequest(
+	) | rpl::start_with_next([this](auto item) {
+		if (item->history()->lastMsg == item) {
+			item->history()->updateChatListEntry();
+		}
+	}, lifetime());
 	subscribe(App::histories().sendActionAnimationUpdated(), [this](const Histories::SendActionAnimationUpdate &update) {
 		auto updateRect = Dialogs::Layout::RowPainter::sendActionAnimationRect(update.width, update.height, getFullWidth(), update.textUpdated);
 		updateDialogRow(update.history->peer, MsgId(0), updateRect, UpdateRowSection::Default | UpdateRowSection::Filtered);
@@ -1796,9 +1798,9 @@ void DialogsInner::searchInPeer(PeerData *peer, UserData *from) {
 		_cancelSearchInPeer->show();
 		if (_searchInPeer->isSelf()) {
 			_searchInSavedText.setText(
-				st::dialogsSearchFromStyle,
+				st::msgNameStyle,
 				lang(lng_saved_messages),
-				_textDlgOptions);
+				Ui::DialogTextOptions());
 		}
 	} else {
 		_cancelSearchInPeer->hide();
@@ -1810,7 +1812,7 @@ void DialogsInner::searchInPeer(PeerData *peer, UserData *from) {
 		_searchFromUserText.setText(
 			st::dialogsSearchFromStyle,
 			fromUserText,
-			_textDlgOptions);
+			Ui::DialogTextOptions());
 		_cancelSearchFromUser->show();
 	} else {
 		_cancelSearchFromUser->hide();
@@ -2123,7 +2125,7 @@ void DialogsInner::saveRecentHashtags(const QString &text) {
 			recent = cRecentSearchHashtags();
 		}
 		found = true;
-		incrementRecentHashtag(recent, text.mid(i + 1, next - i - 1));
+		Stickers::IncrementRecentHashtag(recent, text.mid(i + 1, next - i - 1));
 	}
 	if (found) {
 		cSetRecentSearchHashtags(recent);

Telegram/SourceFiles/dialogs/dialogs_layout.cpp

@@ -26,6 +26,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "styles/style_dialogs.h"
 #include "storage/localstorage.h"
 #include "ui/empty_userpic.h"
+#include "ui/text_options.h"
 #include "lang/lang_keys.h"
 
 namespace Dialogs {
@@ -156,7 +157,7 @@ void paintRow(
 			if (history->cloudDraftTextCache.isEmpty()) {
 				auto draftWrapped = textcmdLink(1, lng_dialogs_text_from_wrapped(lt_from, lang(lng_from_draft)));
 				auto draftText = lng_dialogs_text_with_from(lt_from_part, draftWrapped, lt_message, TextUtilities::Clean(draft->textWithTags.text));
-				history->cloudDraftTextCache.setText(st::dialogsTextStyle, draftText, _textDlgOptions);
+				history->cloudDraftTextCache.setText(st::dialogsTextStyle, draftText, Ui::DialogTextOptions());
 			}
 			p.setPen(active ? st::dialogsTextFgActive : (selected ? st::dialogsTextFgOver : st::dialogsTextFg));
 			p.setTextPalette(active ? st::dialogsTextPaletteDraftActive : (selected ? st::dialogsTextPaletteDraftOver : st::dialogsTextPaletteDraft));
@@ -499,7 +500,7 @@ void RowPainter::paint(
 	auto item = row->item();
 	auto history = item->history();
 	auto cloudDraft = nullptr;
-	auto from = [&] {
+	const auto from = [&] {
 		if (auto searchPeer = row->searchInPeer()) {
 			if (searchPeer->isSelf()) {
 				return item->senderOriginal();
@@ -509,7 +510,7 @@ void RowPainter::paint(
 		}
 		return (history->peer->migrateTo() ? history->peer->migrateTo() : history->peer);
 	}();
-	auto drawInDialogWay = [&] {
+	const auto drawInDialogWay = [&] {
 		if (auto searchPeer = row->searchInPeer()) {
 			if (!searchPeer->isChannel() || searchPeer->isMegagroup()) {
 				return HistoryItem::DrawInDialog::WithoutSender;
@@ -517,7 +518,7 @@ void RowPainter::paint(
 		}
 		return HistoryItem::DrawInDialog::Normal;
 	}();
-	auto paintItemCallback = [&](int nameleft, int namewidth) {
+	const auto paintItemCallback = [&](int nameleft, int namewidth) {
 		auto lastWidth = namewidth;
 		auto texttop = st::dialogsPadding.y() + st::msgNameFont->height + st::dialogsSkip;
 		item->drawInDialog(
@@ -529,11 +530,14 @@ void RowPainter::paint(
 			row->_cacheFor,
 			row->_cache);
 	};
-	auto paintCounterCallback = [] {};
+	const auto paintCounterCallback = [] {};
+	const auto showSavedMessages = history->peer->isSelf()
+		&& !row->searchInPeer();
 	const auto flags = (active ? Flag::Active : Flag(0))
 		| (selected ? Flag::Selected : Flag(0))
 		| (onlyBackground ? Flag::OnlyBackground : Flag(0))
-		| Flag::SearchResult;
+		| Flag::SearchResult
+		| (showSavedMessages ? Flag::SavedMessages : Flag(0));
 	paintRow(
 		p,
 		row,

Telegram/SourceFiles/dialogs/dialogs_search_from_controllers.cpp

@@ -21,6 +21,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "dialogs/dialogs_search_from_controllers.h"
 
 #include "lang/lang_keys.h"
+#include "data/data_peer_values.h"
 #include "observer_peer.h"
 #include "auth_session.h"
 #include "apiwrap.h"
@@ -94,19 +95,22 @@ void ChatSearchFromController::rebuildRows() {
 	auto wasEmpty = !delegate()->peerListFullRowsCount();
 
 	auto now = unixtime();
-	QMultiMap<int32, UserData*> ordered;
+	const auto byOnline = [&](not_null<UserData*> user) {
+		return Data::SortByOnlineValue(user, now);
+	};
+	auto ordered = QMultiMap<TimeId, not_null<UserData*>>();
 	if (_chat->noParticipantInfo()) {
 		Auth().api().requestFullPeer(_chat);
 	} else if (!_chat->participants.empty()) {
 		for (const auto [user, version] : _chat->participants) {
-			ordered.insertMulti(App::onlineForSort(user, now), user);
+			ordered.insertMulti(byOnline(user), user);
 		}
 	}
 	for_const (auto user, _chat->lastAuthors) {
 		if (user->isInaccessible()) continue;
 		appendRow(user);
 		if (!ordered.isEmpty()) {
-			ordered.remove(App::onlineForSort(user, now), user);
+			ordered.remove(byOnline(user), user);
 		}
 	}
 	if (!ordered.isEmpty()) {

Telegram/SourceFiles/dialogs/dialogs_widget.cpp

@@ -38,6 +38,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "window/window_controller.h"
 #include "window/window_slide_animation.h"
 #include "profile/profile_channel_controllers.h"
+#include "storage/storage_media_prepare.h"
 
 namespace {
 
@@ -228,7 +229,7 @@ void DialogsWidget::startWidthAnimation() {
 		st::columnMinimalWidthLeft,
 		scrollGeometry.height());
 	_scroll->setGeometry(grabGeometry);
-	myEnsureResized(_scroll);
+	Ui::SendPendingMoveResizeEvents(_scroll);
 	auto image = QImage(
 		grabGeometry.size() * cIntRetinaFactor(),
 		QImage::Format_ARGB32_Premultiplied);
@@ -745,18 +746,22 @@ bool DialogsWidget::peopleFailed(const RPCError &error, mtpRequestId req) {
 }
 
 void DialogsWidget::dragEnterEvent(QDragEnterEvent *e) {
+	using namespace Storage;
+
 	if (App::main()->selectingPeer()) return;
 
+	const auto data = e->mimeData();
 	_dragInScroll = false;
-	_dragForward = e->mimeData()->hasFormat(qsl("application/x-td-forward-selected"));
-	if (!_dragForward) _dragForward = e->mimeData()->hasFormat(qsl("application/x-td-forward-pressed-link"));
-	if (!_dragForward) _dragForward = e->mimeData()->hasFormat(qsl("application/x-td-forward-pressed"));
-	if (_dragForward && Adaptive::OneColumn()) _dragForward = false;
+	_dragForward = Adaptive::OneColumn()
+		? false
+		: (data->hasFormat(qsl("application/x-td-forward-selected"))
+			|| data->hasFormat(qsl("application/x-td-forward-pressed-link"))
+			|| data->hasFormat(qsl("application/x-td-forward-pressed")));
 	if (_dragForward) {
 		e->setDropAction(Qt::CopyAction);
 		e->accept();
 		updateDragInScroll(_scroll->geometry().contains(e->pos()));
-	} else if (App::main() && App::main()->getDragState(e->mimeData()) != DragState::None) {
+	} else if (ComputeMimeDataState(data) != MimeDataState::None) {
 		e->setDropAction(Qt::CopyAction);
 		e->accept();
 	}
@@ -811,6 +816,7 @@ void DialogsWidget::dropEvent(QDropEvent *e) {
 		if (auto peer = _inner->updateFromParentDrag(mapToGlobal(e->pos()))) {
 			e->acceptProposedAction();
 			App::main()->onFilesOrForwardDrop(peer->id, e->mimeData());
+			controller()->window()->activateWindow();
 		}
 	}
 }

Telegram/SourceFiles/facades.cpp

@@ -24,6 +24,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "core/click_handler_types.h"
 #include "media/media_clip_reader.h"
 #include "window/window_controller.h"
+#include "history/history_item_components.h"
 #include "observer_peer.h"
 #include "mainwindow.h"
 #include "mainwidget.h"
@@ -69,19 +70,22 @@ bool insertBotCommand(const QString &cmd) {
 	return false;
 }
 
-void activateBotCommand(const HistoryItem *msg, int row, int col) {
-	const HistoryMessageReplyMarkup::Button *button = nullptr;
+void activateBotCommand(
+		not_null<const HistoryItem*> msg,
+		int row,
+		int column) {
+	const HistoryMessageMarkupButton *button = nullptr;
 	if (auto markup = msg->Get<HistoryMessageReplyMarkup>()) {
 		if (row < markup->rows.size()) {
 			auto &buttonRow = markup->rows[row];
-			if (col < buttonRow.size()) {
-				button = &buttonRow.at(col);
+			if (column < buttonRow.size()) {
+				button = &buttonRow[column];
 			}
 		}
 	}
 	if (!button) return;
 
-	using ButtonType = HistoryMessageReplyMarkup::Button::Type;
+	using ButtonType = HistoryMessageMarkupButton::Type;
 	switch (button->type) {
 	case ButtonType::Default: {
 		// Copy string before passing it to the sending method
@@ -93,7 +97,7 @@ void activateBotCommand(const HistoryItem *msg, int row, int col) {
 	case ButtonType::Callback:
 	case ButtonType::Game: {
 		if (auto m = main()) {
-			m->app_sendBotCallback(button, msg, row, col);
+			m->app_sendBotCallback(button, msg, row, column);
 		}
 	} break;
 

Telegram/SourceFiles/facades.h

@@ -130,11 +130,21 @@ inline auto LambdaDelayedOnce(
 	};
 }
 
-void sendBotCommand(PeerData *peer, UserData *bot, const QString &cmd, MsgId replyTo = 0);
+void sendBotCommand(
+	PeerData *peer,
+	UserData *bot,
+	const QString &cmd,
+	MsgId replyTo = 0);
 bool insertBotCommand(const QString &cmd);
-void activateBotCommand(const HistoryItem *msg, int row, int col);
+void activateBotCommand(
+	not_null<const HistoryItem*> msg,
+	int row,
+	int column);
 void searchByHashtag(const QString &tag, PeerData *inPeer);
-void openPeerByName(const QString &username, MsgId msgId = ShowAtUnreadMsgId, const QString &startToken = QString());
+void openPeerByName(
+	const QString &username,
+	MsgId msgId = ShowAtUnreadMsgId,
+	const QString &startToken = QString());
 void joinGroupByHash(const QString &hash);
 void removeDialog(History *history);
 void showSettings();

Telegram/SourceFiles/history/history.cpp

@@ -23,6 +23,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "history/history_message.h"
 #include "history/history_media_types.h"
 #include "history/history_service.h"
+#include "history/history_item_components.h"
 #include "dialogs/dialogs_indexed_list.h"
 #include "styles/style_dialogs.h"
 #include "data/data_drafts.h"
@@ -38,6 +39,8 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "storage/storage_facade.h"
 #include "storage/storage_shared_media.h"
 #include "data/data_channel_admins.h"
+#include "ui/text_options.h"
+#include "core/crash_reports.h"
 
 namespace {
 
@@ -60,7 +63,7 @@ auto GlobalPinnedIndex = 0;
 
 HistoryItem *createUnsupportedMessage(History *history, MsgId msgId, MTPDmessage::Flags flags, MsgId replyTo, int32 viaBotId, QDateTime date, int32 from) {
 	auto text = TextWithEntities { lng_message_unsupported(lt_link, qsl("https://desktop.telegram.org")) };
-	TextUtilities::ParseEntities(text, _historyTextNoMonoOptions.flags);
+	TextUtilities::ParseEntities(text, Ui::ItemTextNoMonoOptions().flags);
 	text.entities.push_front(EntityInText(EntityInTextItalic, 0, text.text.size()));
 	flags &= ~MTPDmessage::Flag::f_post_author;
 	return HistoryMessage::create(history, msgId, flags, replyTo, viaBotId, date, from, QString(), text);
@@ -68,11 +71,6 @@ HistoryItem *createUnsupportedMessage(History *history, MsgId msgId, MTPDmessage
 
 } // namespace
 
-void HistoryInit() {
-	HistoryInitMessages();
-	HistoryInitMedia();
-}
-
 History::History(const PeerId &peerId)
 : peer(App::peer(peerId))
 , lastItemTextCache(st::dialogsTextWidthMin)
@@ -362,7 +360,10 @@ bool History::updateSendActionNeedsAnimating(TimeMs ms, bool force) {
 		}
 		if (_sendActionString != newTypingString) {
 			_sendActionString = newTypingString;
-			_sendActionText.setText(st::dialogsTextStyle, _sendActionString, _textNameOptions);
+			_sendActionText.setText(
+				st::dialogsTextStyle,
+				_sendActionString,
+				Ui::NameTextOptions());
 		}
 	}
 	auto result = (!_typing.isEmpty() || !_sendActions.isEmpty());
@@ -542,27 +543,6 @@ const QDateTime &ChannelHistory::maxReadMessageDate() {
 	return _maxReadMessageDate;
 }
 
-HistoryItem *ChannelHistory::addNewChannelMessage(const MTPMessage &msg, NewMessageType type) {
-	if (type == NewMessageExisting) return addToHistory(msg);
-
-	return addNewToBlocks(msg, type);
-}
-
-HistoryItem *ChannelHistory::addNewToBlocks(const MTPMessage &msg, NewMessageType type) {
-	if (!loadedAtBottom()) {
-		HistoryItem *item = addToHistory(msg);
-		if (item) {
-			setLastMessage(item);
-			if (type == NewMessageUnread) {
-				newItemAdded(item);
-			}
-		}
-		return item;
-	}
-
-	return addNewToLastBlock(msg, type);
-}
-
 void ChannelHistory::cleared(bool leaveItems) {
 	_joinedMessage = nullptr;
 }
@@ -678,7 +658,7 @@ void checkForSwitchInlineButton(HistoryItem *item) {
 		if (auto markup = item->Get<HistoryMessageReplyMarkup>()) {
 			for_const (auto &row, markup->rows) {
 				for_const (auto &button, row) {
-					if (button.type == HistoryMessageReplyMarkup::Button::Type::SwitchInline) {
+					if (button.type == HistoryMessageMarkupButton::Type::SwitchInline) {
 						Notify::switchInlineBotButtonReceived(QString::fromUtf8(button.data));
 						return;
 					}
@@ -795,12 +775,7 @@ void Histories::checkSelfDestructItems() {
 }
 
 HistoryItem *History::createItem(const MTPMessage &msg, bool applyServiceAction, bool detachExistingItem) {
-	auto msgId = MsgId(0);
-	switch (msg.type()) {
-	case mtpc_messageEmpty: msgId = msg.c_messageEmpty().vid.v; break;
-	case mtpc_message: msgId = msg.c_message().vid.v; break;
-	case mtpc_messageService: msgId = msg.c_messageService().vid.v; break;
-	}
+	const auto msgId = idFromMessage(msg);
 	if (!msgId) return nullptr;
 
 	auto result = App::histItemById(channelId(), msgId);
@@ -809,7 +784,10 @@ HistoryItem *History::createItem(const MTPMessage &msg, bool applyServiceAction,
 			result->detach();
 		}
 		if (msg.type() == mtpc_message) {
-			result->updateMedia(msg.c_message().has_media() ? (&msg.c_message().vmedia) : 0);
+			const auto media = msg.c_message().has_media()
+				? &msg.c_message().vmedia
+				: nullptr;
+			result->updateMedia(media);
 			if (applyServiceAction) {
 				App::checkSavedGif(result);
 			}
@@ -1093,72 +1071,85 @@ HistoryItem *History::createItem(const MTPMessage &msg, bool applyServiceAction,
 	return result;
 }
 
-HistoryItem *History::createItemForwarded(MsgId id, MTPDmessage::Flags flags, QDateTime date, UserId from, const QString &postAuthor, HistoryMessage *msg) {
+not_null<HistoryItem*> History::createItemForwarded(MsgId id, MTPDmessage::Flags flags, QDateTime date, UserId from, const QString &postAuthor, HistoryMessage *msg) {
 	return HistoryMessage::create(this, id, flags, date, from, postAuthor, msg);
 }
 
-HistoryItem *History::createItemDocument(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, DocumentData *doc, const QString &caption, const MTPReplyMarkup &markup) {
+not_null<HistoryItem*> History::createItemDocument(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, DocumentData *doc, const QString &caption, const MTPReplyMarkup &markup) {
 	return HistoryMessage::create(this, id, flags, replyTo, viaBotId, date, from, postAuthor, doc, caption, markup);
 }
 
-HistoryItem *History::createItemPhoto(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, PhotoData *photo, const QString &caption, const MTPReplyMarkup &markup) {
+not_null<HistoryItem*> History::createItemPhoto(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, PhotoData *photo, const QString &caption, const MTPReplyMarkup &markup) {
 	return HistoryMessage::create(this, id, flags, replyTo, viaBotId, date, from, postAuthor, photo, caption, markup);
 }
 
-HistoryItem *History::createItemGame(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, GameData *game, const MTPReplyMarkup &markup) {
+not_null<HistoryItem*> History::createItemGame(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, GameData *game, const MTPReplyMarkup &markup) {
 	return HistoryMessage::create(this, id, flags, replyTo, viaBotId, date, from, postAuthor, game, markup);
 }
 
-HistoryItem *History::addNewService(MsgId msgId, QDateTime date, const QString &text, MTPDmessage::Flags flags, bool newMsg) {
+not_null<HistoryItem*> History::addNewService(MsgId msgId, QDateTime date, const QString &text, MTPDmessage::Flags flags, bool newMsg) {
 	auto message = HistoryService::PreparedText { text };
 	return addNewItem(HistoryService::create(this, msgId, date, message, flags), newMsg);
 }
 
 HistoryItem *History::addNewMessage(const MTPMessage &msg, NewMessageType type) {
-	if (isChannel()) return asChannelHistory()->addNewChannelMessage(msg, type);
-
-	if (type == NewMessageExisting) return addToHistory(msg);
+	if (type == NewMessageExisting) {
+		return addToHistory(msg);
+	}
 	if (!loadedAtBottom() || peer->migrateTo()) {
-		HistoryItem *item = addToHistory(msg);
-		if (item) {
+		if (const auto item = addToHistory(msg)) {
 			setLastMessage(item);
 			if (type == NewMessageUnread) {
 				newItemAdded(item);
 			}
+			return item;
 		}
-		return item;
+		return nullptr;
 	}
 
 	return addNewToLastBlock(msg, type);
 }
 
 HistoryItem *History::addNewToLastBlock(const MTPMessage &msg, NewMessageType type) {
-	auto applyServiceAction = (type == NewMessageUnread);
-	auto detachExistingItem = (type != NewMessageLast);
-	auto item = createItem(msg, applyServiceAction, detachExistingItem);
+	Expects(type != NewMessageExisting);
+
+	const auto applyServiceAction = (type == NewMessageUnread);
+	const auto detachExistingItem = (type != NewMessageLast);
+	const auto item = createItem(msg, applyServiceAction, detachExistingItem);
 	if (!item || !item->detached()) {
 		return item;
 	}
-	return addNewItem(item, (type == NewMessageUnread));
+	const auto result = addNewItem(item, (type == NewMessageUnread));
+	if (type == NewMessageLast) {
+		// When we add just one last item, like we do while loading dialogs,
+		// we want to remove a single added grouped media, otherwise it will
+		// jump once we open the message history (first we show only that
+		// media, then we load the rest of the group and show the group).
+		//
+		// That way when we open the message history we show nothing until a
+		// whole history part is loaded, it certainly will contain the group.
+		removeOrphanMediaGroupPart();
+	}
+	return result;
 }
 
 HistoryItem *History::addToHistory(const MTPMessage &msg) {
 	return createItem(msg, false, false);
 }
 
-HistoryItem *History::addNewForwarded(MsgId id, MTPDmessage::Flags flags, QDateTime date, UserId from, const QString &postAuthor, HistoryMessage *item) {
+not_null<HistoryItem*> History::addNewForwarded(MsgId id, MTPDmessage::Flags flags, QDateTime date, UserId from, const QString &postAuthor, HistoryMessage *item) {
 	return addNewItem(createItemForwarded(id, flags, date, from, postAuthor, item), true);
 }
 
-HistoryItem *History::addNewDocument(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, DocumentData *doc, const QString &caption, const MTPReplyMarkup &markup) {
+not_null<HistoryItem*> History::addNewDocument(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, DocumentData *doc, const QString &caption, const MTPReplyMarkup &markup) {
 	return addNewItem(createItemDocument(id, flags, viaBotId, replyTo, date, from, postAuthor, doc, caption, markup), true);
 }
 
-HistoryItem *History::addNewPhoto(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, PhotoData *photo, const QString &caption, const MTPReplyMarkup &markup) {
+not_null<HistoryItem*> History::addNewPhoto(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, PhotoData *photo, const QString &caption, const MTPReplyMarkup &markup) {
 	return addNewItem(createItemPhoto(id, flags, viaBotId, replyTo, date, from, postAuthor, photo, caption, markup), true);
 }
 
-HistoryItem *History::addNewGame(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, GameData *game, const MTPReplyMarkup &markup) {
+not_null<HistoryItem*> History::addNewGame(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, GameData *game, const MTPReplyMarkup &markup) {
 	return addNewItem(createItemGame(id, flags, viaBotId, replyTo, date, from, postAuthor, game, markup), true);
 }
 
@@ -1172,15 +1163,17 @@ void History::setUnreadMentionsCount(int count) {
 
 bool History::addToUnreadMentions(
 		MsgId msgId,
-		AddToUnreadMentionsMethod method) {
-	auto allLoaded = _unreadMentionsCount ? (_unreadMentions.size() >= *_unreadMentionsCount) : false;
+		UnreadMentionType type) {
+	auto allLoaded = _unreadMentionsCount
+		? (_unreadMentions.size() >= *_unreadMentionsCount)
+		: false;
 	if (allLoaded) {
-		if (method == AddToUnreadMentionsMethod::New) {
+		if (type == UnreadMentionType::New) {
 			++*_unreadMentionsCount;
 			_unreadMentions.insert(msgId);
 			return true;
 		}
-	} else if (!_unreadMentions.empty() && method != AddToUnreadMentionsMethod::New) {
+	} else if (!_unreadMentions.empty() && type != UnreadMentionType::New) {
 		_unreadMentions.insert(msgId);
 		return true;
 	}
@@ -1250,32 +1243,24 @@ void History::addUnreadMentionsSlice(const MTPmessages_Messages &result) {
 	Notify::peerUpdatedDelayed(peer, Notify::PeerUpdate::Flag::UnreadMentionsChanged);
 }
 
-HistoryItem *History::addNewItem(HistoryItem *adding, bool newMsg) {
+not_null<HistoryItem*> History::addNewItem(not_null<HistoryItem*> adding, bool newMsg) {
 	Expects(!isBuildingFrontBlock());
+
 	addItemToBlock(adding);
 
-	setLastMessage(adding);
-	if (newMsg) {
-		newItemAdded(adding);
+	const auto [groupFrom, groupTill] = recountGroupingFromTill(adding);
+	if (groupFrom != groupTill || groupFrom->groupId()) {
+		recountGrouping(groupFrom, groupTill);
 	}
-
-	adding->addToUnreadMentions(AddToUnreadMentionsMethod::New);
-	if (IsServerMsgId(adding->id)) {
-		if (auto sharedMediaTypes = adding->sharedMediaTypes()) {
-			if (newMsg) {
-				Auth().storage().add(Storage::SharedMediaAddNew(
-					peer->id,
-					sharedMediaTypes,
-					adding->id));
-			} else {
-				auto from = loadedAtTop() ? 0 : minMsgId();
-				auto till = loadedAtBottom() ? ServerMaxMsgId : maxMsgId();
-				Auth().storage().add(Storage::SharedMediaAddExisting(
-					peer->id,
-					sharedMediaTypes,
-					adding->id,
-					{ from, till }));
-			}
+	if (!newMsg && IsServerMsgId(adding->id)) {
+		if (const auto sharedMediaTypes = adding->sharedMediaTypes()) {
+			auto from = loadedAtTop() ? 0 : minMsgId();
+			auto till = loadedAtBottom() ? ServerMaxMsgId : maxMsgId();
+			Auth().storage().add(Storage::SharedMediaAddExisting(
+				peer->id,
+				sharedMediaTypes,
+				adding->id,
+				{ from, till }));
 		}
 	}
 	if (adding->from()->id) {
@@ -1358,6 +1343,11 @@ HistoryItem *History::addNewItem(HistoryItem *adding, bool newMsg) {
 		}
 	}
 
+	setLastMessage(adding);
+	if (newMsg) {
+		newItemAdded(adding);
+	}
+
 	return adding;
 }
 
@@ -1378,8 +1368,9 @@ void History::clearSendAction(not_null<UserData*> from) {
 	}
 }
 
-void History::newItemAdded(HistoryItem *item) {
+void History::newItemAdded(not_null<HistoryItem*> item) {
 	App::checkImageCacheSize();
+	item->indexAsNewItem();
 	if (const auto from = item->from() ? item->from()->asUser() : nullptr) {
 		if (from == item->author()) {
 			clearSendAction(from);
@@ -1388,7 +1379,9 @@ void History::newItemAdded(HistoryItem *item) {
 		from->madeAction(itemServerTime.v);
 	}
 	if (item->out()) {
-		if (unreadBar) unreadBar->destroyUnreadBar();
+		if (unreadBar) {
+			unreadBar->destroyUnreadBar();
+		}
 		if (!item->unread()) {
 			outboxRead(item);
 		}
@@ -1433,8 +1426,7 @@ HistoryBlock *History::prepareBlockForAddingItem() {
 	return result;
 };
 
-void History::addItemToBlock(HistoryItem *item) {
-	Expects(item != nullptr);
+void History::addItemToBlock(not_null<HistoryItem*> item) {
 	Expects(item->detached());
 
 	auto block = prepareBlockForAddingItem();
@@ -1499,7 +1491,7 @@ void History::addToSharedMedia(std::vector<MsgId> (&medias)[kSharedMediaTypeCoun
 			}
 			value.push_back(indices.join(","));
 		}
-		SignalHandlers::setCrashAnnotation("full", value.join(";"));
+		CrashReports::SetAnnotation("full", value.join(";"));
 		Assert(!"History desync caught!");
 		//// Logging
 
@@ -1527,6 +1519,9 @@ void History::addOlderSlice(const QVector<MTPMessage> &slice) {
 		return;
 	}
 
+	auto firstAdded = (HistoryItem*)nullptr;
+	auto lastAdded = (HistoryItem*)nullptr;
+
 	auto logged = QStringList();
 	logged.push_back(QString::number(minMsgId()));
 	logged.push_back(QString::number(maxMsgId()));
@@ -1538,9 +1533,12 @@ void History::addOlderSlice(const QVector<MTPMessage> &slice) {
 
 	for (auto i = slice.cend(), e = slice.cbegin(); i != e;) {
 		--i;
-		auto adding = createItem(*i, false, true);
+		const auto adding = createItem(*i, false, true);
 		if (!adding) continue;
 
+		if (!firstAdded) firstAdded = adding;
+		lastAdded = adding;
+
 		if (minAdded < 0 || minAdded > adding->id) {
 			minAdded = adding->id;
 		}
@@ -1573,7 +1571,7 @@ void History::addOlderSlice(const QVector<MTPMessage> &slice) {
 		}
 		for (auto i = block->items.size(); i > 0; --i) {
 			auto item = block->items[i - 1];
-			item->addToUnreadMentions(AddToUnreadMentionsMethod::Front);
+			item->addToUnreadMentions(UnreadMentionType::Existing);
 			if (item->from()->id) {
 				if (lastAuthors) { // chats
 					if (auto user = item->from()->asUser()) {
@@ -1631,11 +1629,16 @@ void History::addOlderSlice(const QVector<MTPMessage> &slice) {
 
 	logged.push_back(QString::number(minAdded));
 	logged.push_back(QString::number(maxAdded));
-	SignalHandlers::setCrashAnnotation("old_minmaxwas_minmaxadd", logged.join(";"));
+	CrashReports::SetAnnotation("old_minmaxwas_minmaxadd", logged.join(";"));
 
 	addBlockToSharedMedia(block);
 
-	SignalHandlers::setCrashAnnotation("old_minmaxwas_minmaxadd", "");
+	CrashReports::ClearAnnotation("old_minmaxwas_minmaxadd");
+
+	if (lastAdded) {
+		const auto [from, till] = recountGroupingFromTill(lastAdded);
+		recountGrouping(firstAdded, till);
+	}
 
 	if (isChannel()) {
 		asChannelHistory()->checkJoinedMessage();
@@ -1654,6 +1657,9 @@ void History::addNewerSlice(const QVector<MTPMessage> &slice) {
 		}
 	}
 
+	auto firstAdded = (HistoryItem*)nullptr;
+	auto lastAdded = (HistoryItem*)nullptr;
+
 	Assert(!isBuildingFrontBlock());
 	if (!slice.isEmpty()) {
 		auto logged = QStringList();
@@ -1664,12 +1670,14 @@ void History::addNewerSlice(const QVector<MTPMessage> &slice) {
 		auto maxAdded = -1;
 
 		std::vector<MsgId> medias[Storage::kSharedMediaTypeCount];
-		auto atLeastOneAdded = false;
 		for (auto i = slice.cend(), e = slice.cbegin(); i != e;) {
 			--i;
-			auto adding = createItem(*i, false, true);
+			const auto adding = createItem(*i, false, true);
 			if (!adding) continue;
 
+			if (!firstAdded) firstAdded = adding;
+			lastAdded = adding;
+
 			if (minAdded < 0 || minAdded > adding->id) {
 				minAdded = adding->id;
 			}
@@ -1678,7 +1686,6 @@ void History::addNewerSlice(const QVector<MTPMessage> &slice) {
 			}
 
 			addItemToBlock(adding);
-			atLeastOneAdded = true;
 			if (auto types = adding->sharedMediaTypes()) {
 				for (auto i = 0; i != Storage::kSharedMediaTypeCount; ++i) {
 					auto type = static_cast<Storage::SharedMediaType>(i);
@@ -1693,21 +1700,26 @@ void History::addNewerSlice(const QVector<MTPMessage> &slice) {
 		}
 		logged.push_back(QString::number(minAdded));
 		logged.push_back(QString::number(maxAdded));
-		SignalHandlers::setCrashAnnotation("new_minmaxwas_minmaxadd", logged.join(";"));
+		CrashReports::SetAnnotation("new_minmaxwas_minmaxadd", logged.join(";"));
 
-		if (!atLeastOneAdded) {
+		if (!firstAdded) {
 			newLoaded = true;
 			setLastMessage(lastAvailableMessage());
 		}
 		addToSharedMedia(medias, wasLoadedAtBottom != loadedAtBottom());
 
-		SignalHandlers::setCrashAnnotation("new_minmaxwas_minmaxadd", "");
+		CrashReports::ClearAnnotation("new_minmaxwas_minmaxadd");
 	}
 
 	if (!wasLoadedAtBottom) {
 		checkAddAllToUnreadMentions();
 	}
 
+	if (firstAdded) {
+		const auto [from, till] = recountGroupingFromTill(firstAdded);
+		recountGrouping(from, lastAdded);
+	}
+
 	if (isChannel()) asChannelHistory()->checkJoinedMessage();
 	checkLastMsg();
 }
@@ -1728,9 +1740,9 @@ void History::checkAddAllToUnreadMentions() {
 		return;
 	}
 
-	for_const (auto block, blocks) {
-		for_const (auto item, block->items) {
-			item->addToUnreadMentions(AddToUnreadMentionsMethod::Back);
+	for (const auto block : blocks) {
+		for (const auto item : block->items) {
+			item->addToUnreadMentions(UnreadMentionType::Existing);
 		}
 	}
 }
@@ -2006,7 +2018,7 @@ void History::destroyUnreadBar() {
 	}
 }
 
-HistoryItem *History::addNewInTheMiddle(HistoryItem *newItem, int32 blockIndex, int32 itemIndex) {
+not_null<HistoryItem*> History::addNewInTheMiddle(not_null<HistoryItem*> newItem, int32 blockIndex, int32 itemIndex) {
 	Expects(blockIndex >= 0);
 	Expects(blockIndex < blocks.size());
 	Expects(itemIndex >= 0);
@@ -2028,9 +2040,135 @@ HistoryItem *History::addNewInTheMiddle(HistoryItem *newItem, int32 blockIndex,
 		newItem->nextItemChanged();
 	}
 
+	const auto [groupFrom, groupTill] = recountGroupingFromTill(newItem);
+	if (groupFrom != groupTill || groupFrom->groupId()) {
+		recountGrouping(groupFrom, groupTill);
+	}
+
 	return newItem;
 }
 
+HistoryItem *History::findNextItem(not_null<HistoryItem*> item) const {
+	Expects(!item->detached());
+
+	const auto nextBlockIndex = item->block()->indexInHistory() + 1;
+	const auto nextItemIndex = item->indexInBlock() + 1;
+	if (nextItemIndex < int(item->block()->items.size())) {
+		return item->block()->items[nextItemIndex];
+	} else if (nextBlockIndex < int(blocks.size())) {
+		return blocks[nextBlockIndex]->items.front();
+	}
+	return nullptr;
+}
+
+HistoryItem *History::findPreviousItem(not_null<HistoryItem*> item) const {
+	Expects(!item->detached());
+
+	const auto blockIndex = item->block()->indexInHistory();
+	const auto itemIndex = item->indexInBlock();
+	if (itemIndex > 0) {
+		return item->block()->items[itemIndex - 1];
+	} else if (blockIndex > 0) {
+		return blocks[blockIndex - 1]->items.back();
+	}
+	return nullptr;
+}
+
+not_null<HistoryItem*> History::findGroupFirst(
+		not_null<HistoryItem*> item) const {
+	const auto group = item->Get<HistoryMessageGroup>();
+	Assert(group != nullptr);
+	Assert(group->leader != nullptr);
+
+	const auto leaderGroup = (group->leader == item)
+		? group
+		: group->leader->Get<HistoryMessageGroup>();
+	Assert(leaderGroup != nullptr);
+
+	return leaderGroup->others.empty()
+		? group->leader
+		: leaderGroup->others.front().get();
+}
+
+not_null<HistoryItem*> History::findGroupLast(
+		not_null<HistoryItem*> item) const {
+	const auto group = item->Get<HistoryMessageGroup>();
+	Assert(group != nullptr);
+
+	return group->leader;
+}
+
+void History::recountGroupingAround(not_null<HistoryItem*> item) {
+	Expects(item->history() == this);
+
+	if (!item->detached() && item->groupId()) {
+		const auto [groupFrom, groupTill] = recountGroupingFromTill(item);
+		recountGrouping(groupFrom, groupTill);
+	}
+}
+
+auto History::recountGroupingFromTill(not_null<HistoryItem*> item)
+-> std::pair<not_null<HistoryItem*>, not_null<HistoryItem*>> {
+	const auto recountFromItem = [&] {
+		if (const auto prev = findPreviousItem(item)) {
+			if (prev->groupId()) {
+				return findGroupFirst(prev);
+			}
+		}
+		return item;
+	}();
+	if (recountFromItem == item && !item->groupId()) {
+		return { item, item };
+	}
+	const auto recountTillItem = [&] {
+		if (const auto next = findNextItem(item)) {
+			if (next->groupId()) {
+				return findGroupLast(next);
+			}
+		}
+		return item;
+	}();
+	return { recountFromItem, recountTillItem };
+}
+
+void History::recountGrouping(
+		not_null<HistoryItem*> from,
+		not_null<HistoryItem*> till) {
+	Expects(!from->detached());
+	Expects(!till->detached());
+
+	from->validateGroupId();
+	auto others = std::vector<not_null<HistoryItem*>>();
+	auto currentGroupId = from->groupId();
+	auto prev = from;
+	while (prev != till) {
+		auto item = findNextItem(prev);
+		item->validateGroupId();
+		const auto groupId = item->groupId();
+		if (currentGroupId) {
+			if (groupId == currentGroupId) {
+				others.push_back(prev);
+			} else {
+				for (const auto other : others) {
+					other->makeGroupMember(prev);
+				}
+				prev->makeGroupLeader(base::take(others));
+				currentGroupId = groupId;
+			}
+		} else if (groupId) {
+			currentGroupId = groupId;
+		}
+		prev = item;
+	}
+
+	if (currentGroupId) {
+		for (const auto other : others) {
+			other->makeGroupMember(prev);
+		}
+		till->makeGroupLeader(base::take(others));
+	}
+}
+
 void History::startBuildingFrontBlock(int expectedItemsCount) {
 	Assert(!isBuildingFrontBlock());
 	Assert(expectedItemsCount > 0);
@@ -2251,11 +2389,11 @@ int History::resizeGetHeight(int newWidth) {
 }
 
 ChannelHistory *History::asChannelHistory() {
-	return isChannel() ? static_cast<ChannelHistory*>(this) : 0;
+	return isChannel() ? static_cast<ChannelHistory*>(this) : nullptr;
 }
 
 const ChannelHistory *History::asChannelHistory() const {
-	return isChannel() ? static_cast<const ChannelHistory*>(this) : 0;
+	return isChannel() ? static_cast<const ChannelHistory*>(this) : nullptr;
 }
 
 not_null<History*> History::migrateToOrMe() const {
@@ -2277,6 +2415,25 @@ bool History::isDisplayedEmpty() const {
 	return isEmpty() || ((blocks.size() == 1) && blocks.front()->items.size() == 1 && blocks.front()->items.front()->isEmpty());
 }
 
+bool History::hasOrphanMediaGroupPart() const {
+	if (loadedAtTop() || !loadedAtBottom()) {
+		return false;
+	} else if (blocks.size() != 1) {
+		return false;
+	} else if (blocks.front()->items.size() != 1) {
+		return false;
+	}
+	return blocks.front()->items.front()->groupId() != MessageGroupId();
+}
+
+bool History::removeOrphanMediaGroupPart() {
+	if (hasOrphanMediaGroupPart()) {
+		clear(true);
+		return true;
+	}
+	return false;
+}
+
 void History::clear(bool leaveItems) {
 	if (unreadBar) {
 		unreadBar = nullptr;
@@ -2470,7 +2627,7 @@ void History::setPinnedIndex(int pinnedIndex) {
 void History::changeMsgId(MsgId oldId, MsgId newId) {
 }
 
-void History::removeBlock(HistoryBlock *block) {
+void History::removeBlock(not_null<HistoryBlock*> block) {
 	Expects(block->items.empty());
 
 	if (_buildingFrontBlock && block == _buildingFrontBlock->block) {
@@ -2521,9 +2678,21 @@ void HistoryBlock::clear(bool leaveItems) {
 	}
 }
 
-void HistoryBlock::removeItem(HistoryItem *item) {
+void HistoryBlock::removeItem(not_null<HistoryItem*> item) {
 	Expects(item->block() == this);
 
+	auto [groupFrom, groupTill] = _history->recountGroupingFromTill(item);
+	const auto groupHistory = _history;
+	const auto needGroupRecount = (groupFrom != groupTill);
+	if (needGroupRecount) {
+		if (groupFrom == item) {
+			groupFrom = groupHistory->findNextItem(groupFrom);
+		}
+		if (groupTill == item) {
+			groupTill = groupHistory->findPreviousItem(groupTill);
+		}
+	}
+
 	auto blockIndex = indexInHistory();
 	auto itemIndex = item->indexInBlock();
 	if (_history->showFrom == item) {
@@ -2557,4 +2726,8 @@ void HistoryBlock::removeItem(HistoryItem *item) {
 	if (items.empty()) {
 		delete this;
 	}
+
+	if (needGroupRecount) {
+		groupHistory->recountGrouping(groupFrom, groupTill);
+	}
 }

Telegram/SourceFiles/history/history.h

@@ -30,8 +30,6 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "base/flat_set.h"
 #include "base/flags.h"
 
-void HistoryInit();
-
 class HistoryItem;
 using HistoryItemsList = std::vector<not_null<HistoryItem*>>;
 
@@ -136,6 +134,7 @@ enum HistoryMediaType {
 	MediaTypeVoiceFile,
 	MediaTypeGame,
 	MediaTypeInvoice,
+	MediaTypeGrouped,
 
 	MediaTypeCount
 };
@@ -172,10 +171,9 @@ struct Draft;
 class HistoryMedia;
 class HistoryMessage;
 
-enum class AddToUnreadMentionsMethod {
+enum class UnreadMentionType {
 	New, // when new message is added to history
-	Front, // when old messages slice was received
-	Back, // when new messages slice was received and it is the last one, we index all media
+	Existing, // when some messages slice was received
 };
 
 namespace Dialogs {
@@ -209,6 +207,8 @@ public:
 		return blocks.empty();
 	}
 	bool isDisplayedEmpty() const;
+	bool hasOrphanMediaGroupPart() const;
+	bool removeOrphanMediaGroupPart();
 
 	void clear(bool leaveItems = false);
 	void clearUpTill(MsgId availableMinId);
@@ -217,13 +217,13 @@ public:
 
 	virtual ~History();
 
-	HistoryItem *addNewService(MsgId msgId, QDateTime date, const QString &text, MTPDmessage::Flags flags = 0, bool newMsg = true);
 	HistoryItem *addNewMessage(const MTPMessage &msg, NewMessageType type);
 	HistoryItem *addToHistory(const MTPMessage &msg);
-	HistoryItem *addNewForwarded(MsgId id, MTPDmessage::Flags flags, QDateTime date, UserId from, const QString &postAuthor, HistoryMessage *item);
-	HistoryItem *addNewDocument(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, DocumentData *doc, const QString &caption, const MTPReplyMarkup &markup);
-	HistoryItem *addNewPhoto(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, PhotoData *photo, const QString &caption, const MTPReplyMarkup &markup);
-	HistoryItem *addNewGame(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, GameData *game, const MTPReplyMarkup &markup);
+	not_null<HistoryItem*> addNewService(MsgId msgId, QDateTime date, const QString &text, MTPDmessage::Flags flags = 0, bool newMsg = true);
+	not_null<HistoryItem*> addNewForwarded(MsgId id, MTPDmessage::Flags flags, QDateTime date, UserId from, const QString &postAuthor, HistoryMessage *item);
+	not_null<HistoryItem*> addNewDocument(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, DocumentData *doc, const QString &caption, const MTPReplyMarkup &markup);
+	not_null<HistoryItem*> addNewPhoto(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, PhotoData *photo, const QString &caption, const MTPReplyMarkup &markup);
+	not_null<HistoryItem*> addNewGame(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, GameData *game, const MTPReplyMarkup &markup);
 
 	// Used only internally and for channel admin log.
 	HistoryItem *createItem(const MTPMessage &msg, bool applyServiceAction, bool detachExistingItem);
@@ -231,7 +231,7 @@ public:
 	void addOlderSlice(const QVector<MTPMessage> &slice);
 	void addNewerSlice(const QVector<MTPMessage> &slice);
 
-	void newItemAdded(HistoryItem *item);
+	void newItemAdded(not_null<HistoryItem*> item);
 
 	int countUnread(MsgId upTo);
 	void updateShowFrom();
@@ -366,7 +366,7 @@ public:
 		return (getUnreadMentionsCount() > 0);
 	}
 	void setUnreadMentionsCount(int count);
-	bool addToUnreadMentions(MsgId msgId, AddToUnreadMentionsMethod method);
+	bool addToUnreadMentions(MsgId msgId, UnreadMentionType type);
 	void eraseFromUnreadMentions(MsgId msgId);
 	void addUnreadMentionsSlice(const MTPmessages_Messages &result);
 
@@ -419,6 +419,7 @@ public:
 	}
 	HistoryItemsList validateForwardDraft();
 	void setForwardDraft(MessageIdsList &&items);
+	void recountGroupingAround(not_null<HistoryItem*> item);
 
 	// some fields below are a property of a currently displayed instance of this
 	// conversation history not a property of the conversation history itself
@@ -475,17 +476,17 @@ protected:
 	// this method just removes a block from the blocks list
 	// when the last item from this block was detached and
 	// calls the required previousItemChanged()
-	void removeBlock(HistoryBlock *block);
+	void removeBlock(not_null<HistoryBlock*> block);
 
 	void clearBlocks(bool leaveItems);
 
-	HistoryItem *createItemForwarded(MsgId id, MTPDmessage::Flags flags, QDateTime date, UserId from, const QString &postAuthor, HistoryMessage *msg);
-	HistoryItem *createItemDocument(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, DocumentData *doc, const QString &caption, const MTPReplyMarkup &markup);
-	HistoryItem *createItemPhoto(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, PhotoData *photo, const QString &caption, const MTPReplyMarkup &markup);
-	HistoryItem *createItemGame(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, GameData *game, const MTPReplyMarkup &markup);
+	not_null<HistoryItem*> createItemForwarded(MsgId id, MTPDmessage::Flags flags, QDateTime date, UserId from, const QString &postAuthor, HistoryMessage *msg);
+	not_null<HistoryItem*> createItemDocument(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, DocumentData *doc, const QString &caption, const MTPReplyMarkup &markup);
+	not_null<HistoryItem*> createItemPhoto(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, PhotoData *photo, const QString &caption, const MTPReplyMarkup &markup);
+	not_null<HistoryItem*> createItemGame(MsgId id, MTPDmessage::Flags flags, UserId viaBotId, MsgId replyTo, QDateTime date, UserId from, const QString &postAuthor, GameData *game, const MTPReplyMarkup &markup);
 
-	HistoryItem *addNewItem(HistoryItem *adding, bool newMsg);
-	HistoryItem *addNewInTheMiddle(HistoryItem *newItem, int32 blockIndex, int32 itemIndex);
+	not_null<HistoryItem*> addNewItem(not_null<HistoryItem*> adding, bool newMsg);
+	not_null<HistoryItem*> addNewInTheMiddle(not_null<HistoryItem*> newItem, int32 blockIndex, int32 itemIndex);
 
 	// All this methods add a new item to the first or last block
 	// depending on if we are in isBuildingFronBlock() state.
@@ -493,7 +494,7 @@ protected:
 
 	// Adds the item to the back or front block, depending on
 	// isBuildingFrontBlock(), creating the block if necessary.
-	void addItemToBlock(HistoryItem *item);
+	void addItemToBlock(not_null<HistoryItem*> item);
 
 	// Usually all new items are added to the last block.
 	// Only when we scroll up and add a new slice to the
@@ -517,6 +518,18 @@ private:
 
 	void clearSendAction(not_null<UserData*> from);
 
+	HistoryItem *findPreviousItem(not_null<HistoryItem*> item) const;
+	HistoryItem *findNextItem(not_null<HistoryItem*> item) const;
+	not_null<HistoryItem*> findGroupFirst(
+		not_null<HistoryItem*> item) const;
+	not_null<HistoryItem*> findGroupLast(
+		not_null<HistoryItem*> item) const;
+	auto recountGroupingFromTill(not_null<HistoryItem*> item)
+		-> std::pair<not_null<HistoryItem*>, not_null<HistoryItem*>>;
+	void recountGrouping(
+		not_null<HistoryItem*> from,
+		not_null<HistoryItem*> till);
+
 	enum class Flag {
 		f_has_pending_resized_items = (1 << 0),
 		f_pending_resize            = (1 << 1),
@@ -593,11 +606,8 @@ public:
 
 private:
 	friend class History;
-	HistoryItem* addNewChannelMessage(const MTPMessage &msg, NewMessageType type);
-	HistoryItem *addNewToBlocks(const MTPMessage &msg, NewMessageType type);
 
 	void checkMaxReadMessageDate();
-
 	void cleared(bool leaveItems);
 
 	QDateTime _maxReadMessageDate;
@@ -624,7 +634,7 @@ public:
 	~HistoryBlock() {
 		clear();
 	}
-	void removeItem(HistoryItem *item);
+	void removeItem(not_null<HistoryItem*> item);
 
 	int resizeGetHeight(int newWidth, bool resizeAllItems);
 	int y() const {

Telegram/SourceFiles/history/history.style

@@ -123,6 +123,8 @@ historyFileThumbCancel: icon {{ "history_file_cancel", historyFileThumbIconFg }}
 historyFileThumbCancelSelected: icon {{ "history_file_cancel", historyFileThumbIconFgSelected }};
 historyFileThumbPlay: icon {{ "history_file_play", historyFileThumbIconFg }};
 historyFileThumbPlaySelected: icon {{ "history_file_play", historyFileThumbIconFgSelected }};
+historyFileThumbWaiting: icon {{ "mediaview_save_check", historyFileThumbIconFg }};
+historyFileThumbWaitingSelected: icon {{ "mediaview_save_check", historyFileThumbIconFgSelected }};
 
 historySendStateSpace: 24px;
 historySendStatePosition: point(-17px, -19px);
@@ -461,3 +463,9 @@ historyFastShareIcon: icon {{ "fast_share", msgServiceFg, point(4px, 3px)}};
 historyGoToOriginalIcon: icon {{ "title_back-flip_horizontal", msgServiceFg, point(8px, 7px) }};
 
 historySavedFont: font(semibold 14px);
+
+historyGroupWidthMax: maxMediaSize;
+historyGroupWidthMin: minPhotoSize;
+historyGroupSkip: 4px;
+historyGroupRadialSize: 44px;
+historyGroupRadialLine: 3px;

Telegram/SourceFiles/history/history_admin_log_filter.cpp

@@ -24,6 +24,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "ui/widgets/checkbox.h"
 #include "ui/effects/ripple_animation.h"
 #include "lang/lang_keys.h"
+#include "data/data_peer_values.h"
 
 namespace AdminLog {
 namespace {
@@ -79,8 +80,8 @@ UserCheckbox::UserCheckbox(QWidget *parent, not_null<UserData*> user, bool check
 		setChecked(!this->checked());
 	});
 	auto now = unixtime();
-	_statusText = App::onlineText(_user, now);
-	_statusOnline = App::onlineColorUse(_user, now);
+	_statusText = Data::OnlineText(_user, now);
+	_statusOnline = Data::OnlineTextActive(_user, now);
 	auto checkSize = _check->getSize();
 	_checkRect = { QPoint(_st.margin.left(), (st::contactsPhotoSize - checkSize.height()) / 2), checkSize };
 }

Telegram/SourceFiles/history/history_admin_log_inner.cpp

@@ -26,6 +26,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "history/history_service_layout.h"
 #include "history/history_admin_log_section.h"
 #include "history/history_admin_log_filter.h"
+#include "history/history_item_components.h"
 #include "chat_helpers/message_field.h"
 #include "mainwindow.h"
 #include "mainwidget.h"
@@ -219,12 +220,12 @@ InnerWidget::InnerWidget(
 , _emptyText(st::historyAdminLogEmptyWidth - st::historyAdminLogEmptyPadding.left() - st::historyAdminLogEmptyPadding.left()) {
 	setMouseTracking(true);
 	_scrollDateHideTimer.setCallback([this] { scrollDateHideByTimer(); });
-	Auth().data().itemRepaintRequest()
-		| rpl::start_with_next([this](auto item) {
-			if (item->isLogEntry() && _history == item->history()) {
-				repaintItem(item);
-			}
-		}, lifetime());
+	Auth().data().itemRepaintRequest(
+	) | rpl::start_with_next([this](auto item) {
+		if (item->isLogEntry() && _history == item->history()) {
+			repaintItem(item);
+		}
+	}, lifetime());
 	subscribe(Auth().data().pendingHistoryResize(), [this] { handlePendingHistoryResize(); });
 	subscribe(Auth().data().queryItemVisibility(), [this](const AuthSessionData::ItemVisibilityQuery &query) {
 		if (_history != query.item->history() || !query.item->isLogEntry() || !isVisible()) {
@@ -424,17 +425,17 @@ void InnerWidget::updateEmptyText() {
 
 QString InnerWidget::tooltipText() const {
 	if (_mouseCursorState == HistoryInDateCursorState && _mouseAction == MouseAction::None) {
-		if (auto item = App::hoveredItem()) {
+		if (const auto item = App::hoveredItem()) {
 			auto dateText = item->date.toString(QLocale::system().dateTimeFormat(QLocale::LongFormat));
 			return dateText;
 		}
 	} else if (_mouseCursorState == HistoryInForwardedCursorState && _mouseAction == MouseAction::None) {
-		if (auto item = App::hoveredItem()) {
-			if (auto forwarded = item->Get<HistoryMessageForwarded>()) {
-				return forwarded->_text.originalText(AllTextSelection, ExpandLinksNone);
+		if (const auto item = App::hoveredItem()) {
+			if (const auto forwarded = item->Get<HistoryMessageForwarded>()) {
+				return forwarded->text.originalText(AllTextSelection, ExpandLinksNone);
 			}
 		}
-	} else if (auto lnk = ClickHandler::getActive()) {
+	} else if (const auto lnk = ClickHandler::getActive()) {
 		return lnk->tooltip();
 	}
 	return QString();
@@ -821,9 +822,9 @@ void InnerWidget::showContextMenu(QContextMenuEvent *e, bool showFromTouch) {
 
 	_contextMenuLink = ClickHandler::getActive();
 	auto item = App::hoveredItem() ? App::hoveredItem() : App::hoveredLinkItem();
-	auto lnkPhoto = dynamic_cast<PhotoClickHandler*>(_contextMenuLink.data());
-	auto lnkDocument = dynamic_cast<DocumentClickHandler*>(_contextMenuLink.data());
-	auto lnkPeer = dynamic_cast<PeerClickHandler*>(_contextMenuLink.data());
+	auto lnkPhoto = dynamic_cast<PhotoClickHandler*>(_contextMenuLink.get());
+	auto lnkDocument = dynamic_cast<DocumentClickHandler*>(_contextMenuLink.get());
+	auto lnkPeer = dynamic_cast<PeerClickHandler*>(_contextMenuLink.get());
 	auto lnkIsVideo = lnkDocument ? lnkDocument->document()->isVideoFile() : false;
 	auto lnkIsVoice = lnkDocument ? lnkDocument->document()->isVoiceMessage() : false;
 	auto lnkIsAudio = lnkDocument ? lnkDocument->document()->isAudioFile() : false;
@@ -979,7 +980,7 @@ void InnerWidget::showStickerPackInfo() {
 }
 
 void InnerWidget::cancelContextDownload() {
-	if (auto lnkDocument = dynamic_cast<DocumentClickHandler*>(_contextMenuLink.data())) {
+	if (auto lnkDocument = dynamic_cast<DocumentClickHandler*>(_contextMenuLink.get())) {
 		lnkDocument->document()->cancel();
 	} else if (auto item = App::contextItem()) {
 		if (auto media = item->getMedia()) {
@@ -992,7 +993,7 @@ void InnerWidget::cancelContextDownload() {
 
 void InnerWidget::showContextInFolder() {
 	QString filepath;
-	if (auto lnkDocument = dynamic_cast<DocumentClickHandler*>(_contextMenuLink.data())) {
+	if (auto lnkDocument = dynamic_cast<DocumentClickHandler*>(_contextMenuLink.get())) {
 		filepath = lnkDocument->document()->filepath(DocumentData::FilePathResolveChecked);
 	} else if (auto item = App::contextItem()) {
 		if (auto media = item->getMedia()) {
@@ -1240,9 +1241,9 @@ void InnerWidget::mouseActionCancel() {
 void InnerWidget::mouseActionFinish(const QPoint &screenPos, Qt::MouseButton button) {
 	mouseActionUpdate(screenPos);
 
-	ClickHandlerPtr activated = ClickHandler::unpressed();
+	auto activated = ClickHandler::unpressed();
 	if (_mouseAction == MouseAction::Dragging) {
-		activated.clear();
+		activated = nullptr;
 	}
 	if (App::pressedItem()) {
 		repaintItem(App::pressedItem());

Telegram/SourceFiles/history/history_admin_log_item.cpp

@@ -488,7 +488,7 @@ void GenerateItems(not_null<History*> history, LocalIdManager &idManager, const
 				fromLinkText,
 				lt_sticker_set,
 				textcmdLink(2, lang(lng_admin_log_changed_stickers_set)));
-			auto setLink = MakeShared<LambdaClickHandler>([set] {
+			auto setLink = std::make_shared<LambdaClickHandler>([set] {
 				Ui::show(Box<StickerSetBox>(set));
 			});
 			auto message = HistoryService::PreparedText { text };

Telegram/SourceFiles/history/history_admin_log_section.cpp

@@ -294,7 +294,7 @@ not_null<ChannelData*> Widget::channel() const {
 
 QPixmap Widget::grabForShowAnimation(const Window::SectionSlideParams &params) {
 	if (params.withTopBarShadow) _fixedBarShadow->hide();
-	auto result = myGrab(this);
+	auto result = Ui::GrabWidget(this);
 	if (params.withTopBarShadow) _fixedBarShadow->show();
 	return result;
 }
@@ -319,7 +319,7 @@ bool Widget::showInternal(
 
 void Widget::setInternalState(const QRect &geometry, not_null<SectionMemento*> memento) {
 	setGeometry(geometry);
-	myEnsureResized(this);
+	Ui::SendPendingMoveResizeEvents(this);
 	restoreState(memento);
 }
 

Telegram/SourceFiles/history/history_drag_area.cpp

@@ -143,7 +143,9 @@ void DragArea::hideStart() {
 		return;
 	}
 	if (_cache.isNull()) {
-		_cache = myGrab(this, innerRect().marginsAdded(st::boxRoundShadow.extend));
+		_cache = Ui::GrabWidget(
+			this,
+			innerRect().marginsAdded(st::boxRoundShadow.extend));
 	}
 	_hiding = true;
 	setIn(false);
@@ -162,7 +164,9 @@ void DragArea::showStart() {
 	}
 	_hiding = false;
 	if (_cache.isNull()) {
-		_cache = myGrab(this, innerRect().marginsAdded(st::boxRoundShadow.extend));
+		_cache = Ui::GrabWidget(
+			this,
+			innerRect().marginsAdded(st::boxRoundShadow.extend));
 	}
 	show();
 	_a_opacity.start([this] { opacityAnimationCallback(); }, 0., 1., st::boxDuration);