Improve participants sorting in voice chats.

Since it may running continously

.github/lock.yml

@@ -1,21 +0,0 @@
-# Number of days of inactivity before a closed issue or pull request is locked
-daysUntilLock: 45
-
-# Skip issues and pull requests created before a given timestamp. Timestamp must
-# follow ISO 8601 (`YYYY-MM-DD`). Set to `false` to disable
-skipCreatedBefore: false
-
-# Issues and pull requests with these labels will be ignored. Set to `[]` to disable
-exemptLabels: []
-
-# Label to add before locking, such as `outdated`. Set to `false` to disable
-lockLabel: false
-
-# Comment to post before locking. Set to `false` to disable
-lockComment: >
-  This thread has been automatically locked since there has not been
-  any recent activity after it was closed. Please open a new issue for
-  related bugs.
-
-# Assign `resolved` as the reason for locking. Set to `false` to disable
-setLockReason: true

.github/workflows/lock.yml

@@ -0,0 +1,23 @@
+name: 'Lock Threads'
+
+on:
+  schedule:
+    - cron: '0 * * * *'
+
+jobs:
+  lock:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: dessant/lock-threads@v2
+        with:
+          github-token: ${{ github.token }}
+          issue-lock-inactive-days: 45
+          pr-lock-inactive-days: 45
+          issue-lock-comment: >
+            This issue has been automatically locked since there
+            has not been any recent activity after it was closed.
+            Please open a new issue for related bugs.
+          pr-lock-comment: >
+            This pull request has been automatically locked since there
+            has not been any recent activity after it was closed.
+            Please open a new issue for related bugs.

.github/workflows/mac.yml

@@ -56,7 +56,7 @@ jobs:
       GIT: "https://github.com"
       PREFIX: "/usr/local/macos"
       MACOSX_DEPLOYMENT_TARGET: "10.12"
-      XZ: "xz-5.2.4"
+      XZ: "xz-5.2.5"
       QT: "5_15_2"
       OPENSSL_VER: "1_1_1"
       QT_PREFIX: "/usr/local/desktop-app/Qt-5.15.2"
@@ -83,6 +83,9 @@ jobs:
           brew install automake fdk-aac lame libass libtool libvorbis libvpx \
           ninja opus sdl shtool texi2html theora x264 xvid yasm pkg-config
 
+          # Disable spotlight.
+          sudo mdutil -a -i off
+
           sudo xcode-select -s /Applications/Xcode.app/Contents/Developer
 
           xcodebuild -version > CACHE_KEY.txt
@@ -142,7 +145,7 @@ jobs:
           cd mozjpeg
           cmake -B build . \
           -DCMAKE_BUILD_TYPE=Release \
-          -DCMAKE_INSTALL_PREFIX=/usr/local/macos \
+          -DCMAKE_INSTALL_PREFIX=$PREFIX \
           -DWITH_JPEG8=ON \
           -DPNG_SUPPORTED=OFF
           cmake --build build -j$(nproc)
@@ -350,7 +353,7 @@ jobs:
       - name: FFmpeg install.
         run: |
           cd $LibrariesPath
-          #List of files from cmake/external/ffmpeg/CMakeLists.txt.
+          # List of files from cmake/external/ffmpeg/CMakeLists.txt.
           copyLib() {
             mkdir -p ffmpeg/$1
             \cp -fR ffmpeg-cache/lib/$1.a ffmpeg/$1/$1.a
@@ -361,17 +364,15 @@ jobs:
           copyLib libswscale
           copyLib libavutil
 
-          sudo cp -R ffmpeg-cache/. /usr/local/
+          sudo cp -R ffmpeg-cache/. $PREFIX
           sudo cp -R ffmpeg-cache/include/. ffmpeg/
 
       - name: OpenAL Soft.
         run: |
           cd $LibrariesPath
 
-          git clone $GIT/kcat/openal-soft.git
-          cd openal-soft
-          git checkout 3970252da9
-          cd build
+          git clone --branch capture_with_webrtc $GIT/telegramdesktop/openal-soft.git
+          cd openal-soft/build
 
           CFLAGS="$UNGUARDED" CPPFLAGS="$UNGUARDED" cmake \
           -D CMAKE_INSTALL_PREFIX:PATH=$PREFIX \
@@ -462,9 +463,9 @@ jobs:
           -nomake examples \
           -nomake tests \
           -platform macx-clang \
-          -I "/usr/local/macos/include" \
-          LIBJPEG_LIBS="/usr/local/macos/lib/libjpeg.a" \
-          ZLIB_LIBS="/usr/local/macos/lib/libz.a"
+          -I "$PREFIX/include" \
+          LIBJPEG_LIBS="$PREFIX/lib/libjpeg.a" \
+          ZLIB_LIBS="$PREFIX/lib/libz.a"
 
           make -j$(nproc)
           sudo make install
@@ -486,12 +487,13 @@ jobs:
           git clone --recursive $GIT/desktop-app/tg_owt.git
           mkdir -p tg_owt/out/Debug
           cd tg_owt/out/Debug
-          cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug \
+          cmake -G Ninja \
+          -DCMAKE_BUILD_TYPE=Debug \
           -DTG_OWT_SPECIAL_TARGET=mac \
-          -DTG_OWT_LIBJPEG_INCLUDE_PATH=/usr/local/macos/include \
+          -DTG_OWT_LIBJPEG_INCLUDE_PATH=$PREFIX/include \
           -DTG_OWT_OPENSSL_INCLUDE_PATH=`pwd`/../../../openssl_$OPENSSL_VER/include \
           -DTG_OWT_OPUS_INCLUDE_PATH=$PREFIX/include/opus \
-          -DTG_OWT_FFMPEG_INCLUDE_PATH=/usr/local/include \
+          -DTG_OWT_FFMPEG_INCLUDE_PATH=$PREFIX/include \
           ../..
           ninja
 

.github/workflows/win.yml

@@ -128,7 +128,7 @@ jobs:
         shell: bash
         run: |
           echo "Find any version of Python 2."
-          p=`ls /c/hostedtoolcache/windows/python | grep 2 | tail -1`
+          p=`ls /c/hostedtoolcache/windows/python | grep "^2" | tail -1`
           if [ -z "$p" ]; then
             echo "Python 2 is not found."
             exit 1
@@ -409,6 +409,7 @@ jobs:
           -D TDESKTOP_API_TEST=ON ^
           -D DESKTOP_APP_USE_PACKAGED=OFF ^
           -D DESKTOP_APP_DISABLE_CRASH_REPORTS=OFF ^
+          -D DESKTOP_APP_NO_PDB=ON ^
           %TDESKTOP_BUILD_DEFINE% ^
           -DCMAKE_SYSTEM_VERSION=%SDK%
 

Telegram/CMakeLists.txt

@@ -73,6 +73,7 @@ PRIVATE
 if (LINUX)
     target_link_libraries(Telegram
     PRIVATE
+        desktop-app::external_glibmm
         desktop-app::external_glib
     )
 
@@ -262,11 +263,15 @@ PRIVATE
     calls/calls_box_controller.h
     calls/calls_call.cpp
     calls/calls_call.h
+    calls/calls_choose_join_as.cpp
+    calls/calls_choose_join_as.h
     calls/calls_group_call.cpp
     calls/calls_group_call.h
     calls/calls_group_common.h
     calls/calls_group_members.cpp
     calls/calls_group_members.h
+    calls/calls_group_menu.cpp
+    calls/calls_group_menu.h
     calls/calls_group_panel.cpp
     calls/calls_group_panel.h
     calls/calls_group_settings.cpp
@@ -388,8 +393,6 @@ PRIVATE
     data/data_drafts.h
     data/data_folder.cpp
     data/data_folder.h
-    # data/data_feed_messages.cpp
-    # data/data_feed_messages.h
     data/data_file_origin.cpp
     data/data_file_origin.h
     data/data_flags.h
@@ -490,8 +493,6 @@ PRIVATE
     history/admin_log/history_admin_log_item.h
     history/admin_log/history_admin_log_section.cpp
     history/admin_log/history_admin_log_section.h
-    # history/feed/history_feed_section.cpp
-    # history/feed/history_feed_section.h
     history/view/controls/compose_controls_common.h
     history/view/controls/history_view_compose_controls.cpp
     history/view/controls/history_view_compose_controls.h
@@ -610,22 +611,10 @@ PRIVATE
     info/info_top_bar.h
     info/info_wrap_widget.cpp
     info/info_wrap_widget.h
-    # info/channels/info_channels_widget.cpp
-    # info/channels/info_channels_widget.h
     info/common_groups/info_common_groups_inner_widget.cpp
     info/common_groups/info_common_groups_inner_widget.h
     info/common_groups/info_common_groups_widget.cpp
     info/common_groups/info_common_groups_widget.h
-    # info/feed/info_feed_channels.cpp
-    # info/feed/info_feed_channels.h
-    # info/feed/info_feed_channels_controllers.cpp
-    # info/feed/info_feed_channels_controllers.h
-    # info/feed/info_feed_cover.cpp
-    # info/feed/info_feed_cover.h
-    # info/feed/info_feed_profile_inner_widget.cpp
-    # info/feed/info_feed_profile_inner_widget.h
-    # info/feed/info_feed_profile_widget.cpp
-    # info/feed/info_feed_profile_widget.h
     info/media/info_media_buttons.h
     info/media/info_media_empty_widget.cpp
     info/media/info_media_empty_widget.h
@@ -830,14 +819,16 @@ PRIVATE
     platform/linux/linux_gtk_integration_p.h
     platform/linux/linux_gtk_integration.cpp
     platform/linux/linux_gtk_integration.h
+    platform/linux/linux_gtk_open_with_dialog.cpp
+    platform/linux/linux_gtk_open_with_dialog.h
     platform/linux/linux_notification_service_watcher.cpp
     platform/linux/linux_notification_service_watcher.h
-    platform/linux/linux_open_with_dialog.cpp
-    platform/linux/linux_open_with_dialog.h
     platform/linux/linux_wayland_integration.cpp
     platform/linux/linux_wayland_integration.h
     platform/linux/linux_xdp_file_dialog.cpp
     platform/linux/linux_xdp_file_dialog.h
+    platform/linux/linux_xdp_open_with_dialog.cpp
+    platform/linux/linux_xdp_open_with_dialog.h
     platform/linux/file_utilities_linux.cpp
     platform/linux/file_utilities_linux.h
     platform/linux/launcher_linux.cpp
@@ -976,8 +967,6 @@ PRIVATE
     storage/storage_domain.h
     storage/storage_facade.cpp
     storage/storage_facade.h
-    # storage/storage_feed_messages.cpp
-    # storage/storage_feed_messages.h
     storage/storage_media_prepare.cpp
     storage/storage_media_prepare.h
     storage/storage_shared_media.cpp
@@ -1128,6 +1117,8 @@ if (DESKTOP_APP_DISABLE_DBUS_INTEGRATION)
         platform/linux/linux_notification_service_watcher.h
         platform/linux/linux_xdp_file_dialog.cpp
         platform/linux/linux_xdp_file_dialog.h
+        platform/linux/linux_xdp_open_with_dialog.cpp
+        platform/linux/linux_xdp_open_with_dialog.h
         platform/linux/notifications_manager_linux.cpp
     )
 
@@ -1150,8 +1141,8 @@ if (DESKTOP_APP_DISABLE_GTK_INTEGRATION)
         platform/linux/linux_gtk_file_dialog.h
         platform/linux/linux_gtk_integration_p.h
         platform/linux/linux_gtk_integration.cpp
-        platform/linux/linux_open_with_dialog.cpp
-        platform/linux/linux_open_with_dialog.h
+        platform/linux/linux_gtk_open_with_dialog.cpp
+        platform/linux/linux_gtk_open_with_dialog.h
     )
 
     nice_target_sources(Telegram ${src_loc}

Telegram/Resources/langs/lang.strings

@@ -1923,12 +1923,16 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_group_call_title" = "Voice Chat";
 "lng_group_call_active" = "speaking";
 "lng_group_call_inactive" = "listening";
+"lng_group_call_raised_hand_status" = "wants to speak";
 "lng_group_call_settings" = "Settings";
 "lng_group_call_unmute" = "Unmute";
 "lng_group_call_unmute_sub" = "or hold spacebar to talk";
 "lng_group_call_you_are_live" = "You are Live";
 "lng_group_call_force_muted" = "Muted by admin";
 "lng_group_call_force_muted_sub" = "You are in Listen Only mode";
+"lng_group_call_raise_hand_tip" = "Click if you want to speak";
+"lng_group_call_raised_hand" = "You asked to speak";
+"lng_group_call_raised_hand_sub" = "We let the speakers know";
 "lng_group_call_connecting" = "Connecting...";
 "lng_group_call_leave" = "Leave";
 "lng_group_call_leave_title" = "Leave voice chat";
@@ -1947,7 +1951,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_group_call_add_to_group_all" = "Those users aren't members of «{group}» yet. Add them to the group?";
 "lng_group_call_invite_members" = "Group members";
 "lng_group_call_invite_search_results" = "Search results";
-"lng_group_call_new_muted" = "Mute new members";
+"lng_group_call_new_muted" = "Mute new participants";
 "lng_group_call_speakers" = "Speakers";
 "lng_group_call_microphone" = "Microphone";
 "lng_group_call_push_to_talk" = "Push to Talk Shortcut";
@@ -1957,8 +1961,12 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_group_call_ptt_delay_s" = "{amount}s";
 "lng_group_call_ptt_delay" = "Push to Talk release delay: {delay}";
 "lng_group_call_share" = "Share Invite Link";
+"lng_group_call_share_speaker" = "Users with this link can speak";
+"lng_group_call_copy_speaker_link" = "Copy Speaker Link";
+"lng_group_call_copy_listener_link" = "Copy Listener Link";
 "lng_group_call_end" = "End Voice Chat";
 "lng_group_call_join" = "Join";
+"lng_group_call_join_confirm" = "Do you want to join the voice chat {chat}?";
 "lng_group_call_invite_done_user" = "You invited {user} to the voice chat.";
 "lng_group_call_invite_done_many#one" = "You invited **{count} member** to the voice chat.";
 "lng_group_call_invite_done_many#other" = "You invited **{count} members** to the voice chat.";
@@ -1969,6 +1977,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_group_call_too_many" = "Sorry, there are too many members in this voice chat. Please try again later.";
 "lng_group_call_context_mute" = "Mute";
 "lng_group_call_context_unmute" = "Allow to speak";
+"lng_group_call_context_remove_hand" = "Cancel request to speak";
 "lng_group_call_context_mute_for_me" = "Mute for me";
 "lng_group_call_context_unmute_for_me" = "Unmute for me";
 "lng_group_call_duration_days#one" = "{count} day";
@@ -1984,6 +1993,29 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_group_call_mac_accessibility" = "Please allow **Accessibility** for Telegram in Privacy Settings.\n\nApp restart may be required.";
 "lng_group_call_mac_settings" = "Open Settings";
 
+"lng_group_call_start_as_header" = "Start Voice Chat as...";
+"lng_group_call_join_as_header" = "Join Voice Chat as...";
+"lng_group_call_display_as_header" = "Display me as...";
+"lng_group_call_join_as_about" = "Choose whether you want to be displayed as your personal account or as your channel.";
+"lng_group_call_join_as_personal" = "personal account";
+"lng_group_call_edit_title" = "Edit voice chat title";
+"lng_group_call_switch_done" = "Members of this voice chat will now see you as **{user}**";
+"lng_group_call_edit_title_header" = "Voice chat title";
+"lng_group_call_recording_start" = "Start recording";
+"lng_group_call_recording_stop" = "Stop recording";
+"lng_group_call_recording_started" = "Voice chat recording started.";
+"lng_group_call_recording_stopped" = "Voice chat recording stopped.";
+"lng_group_call_recording_saved" = "Audio saved to Saved Messages.";
+"lng_group_call_recording_start_sure" = "Do you want to start recording this chat and save the result into an audio file?\n\nOther members will see the chat is being recorded.";
+"lng_group_call_recording_stop_sure" = "Do you want to stop recording this chat?";
+"lng_group_call_recording_start_field" = "Recording Title";
+"lng_group_call_recording_start_button" = "Start";
+"lng_group_call_is_recorded" = "Voice chat is being recorded.";
+"lng_group_call_can_speak_here" = "You can now speak.";
+"lng_group_call_can_speak" = "You can now speak in {chat}.";
+"lng_group_call_title_changed" = "Voice chat title changed to {title}";
+"lng_group_call_join_as_changed" = "Members of this voice chat will now see you as {name}";
+
 "lng_no_mic_permission" = "Telegram needs access to your microphone so that you can make calls and record voice messages.";
 
 "lng_player_message_today" = "Today at {time}";
@@ -2238,34 +2270,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_admin_log_admin_manage_calls" = "Manage voice chats";
 "lng_admin_log_admin_add_admins" = "Add new admins";
 
-// #feed
-//"lng_feed_name" = "Feed";
-//"lng_feed_show_next" = "Show Next";
-
-//"lng_feed_group" = "Group in feed";
-//"lng_feed_ungroup" = "Ungroup from feed";
-//"lng_feed_channel_added" = "Channel added to your feed.";
-//"lng_feed_channel_removed" = "Channel removed from your feed.";
-//"lng_feed_no_messages" = "No messages in this feed yet";
-//"lng_feed_channels#one" = "{count} channel";
-//"lng_feed_channels#other" = "{count} channels";
-//"lng_feed_notifications" = "Feed notifications";
-//"lng_feed_ungroup_all" = "Ungroup all channels";
-//"lng_feed_sure_ungroup_all" = "Are you sure you want to ungroup all channels from this feed?";
-//"lng_feed_ungroup_sure" = "Ungroup";
-//"lng_feed_create_new" = "New feed";
-//"lng_feed_too_few_channels#one" = "You need at least {count} channel to create a feed.";
-//"lng_feed_too_few_channels#other" = "You need at least {count} channels to create a feed.";
-//"lng_feed_select_more_channels#one" = "Select {count} channel or more.";
-//"lng_feed_select_more_channels#other" = "Select {count} channels or more.";
-//"lng_feed_create" = "Create";
-//"lng_feed_edit_title" = "Edit feed";
-//"lng_feed_channels_not_found" = "No channels found";
-
-//"lng_info_feed_title" = "Feed Info";
-//"lng_info_feed_is_default" = "Group new channels";
-//"lng_info_feed_channels" = "Channels";
-
 "lng_terms_signup" = "By signing up,\nyou agree to the {link}.";
 "lng_terms_signup_link" = "Terms of Service";
 "lng_terms_header" = "Terms of Service";

Telegram/Resources/qrc/telegram/sounds.qrc

@@ -9,5 +9,6 @@
     <file alias="group_call_start.mp3">../../sounds/group_call_start.mp3</file>
     <file alias="group_call_connect.mp3">../../sounds/group_call_connect.mp3</file>
     <file alias="group_call_end.mp3">../../sounds/group_call_end.mp3</file>
+    <file alias="group_call_allowed.mp3">../../sounds/group_call_allowed.mp3</file>
   </qresource>
 </RCC>

Telegram/Resources/qrc/telegram/telegram.qrc

@@ -59,6 +59,9 @@
     <file alias="day-blue.tdesktop-theme">../../day-blue.tdesktop-theme</file>
     <file alias="night.tdesktop-theme">../../night.tdesktop-theme</file>
     <file alias="night-green.tdesktop-theme">../../night-green.tdesktop-theme</file>
+    <file alias="icons/calls/active_hand.json">../../icons/calls/active_hand.json</file>
+    <file alias="icons/calls/hand_muted_active.json">../../icons/calls/hand_muted_active.json</file>
+    <file alias="icons/calls/raised_hand.json">../../icons/calls/raised_hand.json</file>
   </qresource>
   <qresource prefix="/qt-project.org">
     <file>../qmime/freedesktop.org.xml</file>

Telegram/Resources/tl/api.tl

@@ -92,6 +92,7 @@ inputPhotoFileLocation#40181ffe id:long access_hash:long file_reference:bytes th
 inputPhotoLegacyFileLocation#d83466f3 id:long access_hash:long file_reference:bytes volume_id:long local_id:int secret:long = InputFileLocation;
 inputPeerPhotoFileLocation#27d69997 flags:# big:flags.0?true peer:InputPeer volume_id:long local_id:int = InputFileLocation;
 inputStickerSetThumb#dbaeae9 stickerset:InputStickerSet volume_id:long local_id:int = InputFileLocation;
+inputGroupCallStream#bba51639 call:InputGroupCall time_ms:long scale:int = InputFileLocation;
 
 peerUser#9db1bc6d user_id:int = Peer;
 peerChat#bad0e5bb chat_id:int = Peer;
@@ -127,8 +128,8 @@ chatForbidden#7328bdb id:int title:string = Chat;
 channel#d31a961e flags:# creator:flags.0?true left:flags.2?true broadcast:flags.5?true verified:flags.7?true megagroup:flags.8?true restricted:flags.9?true signatures:flags.11?true min:flags.12?true scam:flags.19?true has_link:flags.20?true has_geo:flags.21?true slowmode_enabled:flags.22?true call_active:flags.23?true call_not_empty:flags.24?true fake:flags.25?true gigagroup:flags.26?true id:int access_hash:flags.13?long title:string username:flags.6?string photo:ChatPhoto date:int version:int restriction_reason:flags.9?Vector<RestrictionReason> admin_rights:flags.14?ChatAdminRights banned_rights:flags.15?ChatBannedRights default_banned_rights:flags.18?ChatBannedRights participants_count:flags.17?int = Chat;
 channelForbidden#289da732 flags:# broadcast:flags.5?true megagroup:flags.8?true id:int access_hash:long title:string until_date:flags.16?int = Chat;
 
-chatFull#f06c4018 flags:# can_set_username:flags.7?true has_scheduled:flags.8?true id:int about:string participants:ChatParticipants chat_photo:flags.2?Photo notify_settings:PeerNotifySettings exported_invite:flags.13?ExportedChatInvite bot_info:flags.3?Vector<BotInfo> pinned_msg_id:flags.6?int folder_id:flags.11?int call:flags.12?InputGroupCall ttl_period:flags.14?int = ChatFull;
-channelFull#2548c037 flags:# can_view_participants:flags.3?true can_set_username:flags.6?true can_set_stickers:flags.7?true hidden_prehistory:flags.10?true can_set_location:flags.16?true has_scheduled:flags.19?true can_view_stats:flags.20?true blocked:flags.22?true id:int about:string participants_count:flags.0?int admins_count:flags.1?int kicked_count:flags.2?int banned_count:flags.2?int online_count:flags.13?int read_inbox_max_id:int read_outbox_max_id:int unread_count:int chat_photo:Photo notify_settings:PeerNotifySettings exported_invite:flags.23?ExportedChatInvite bot_info:Vector<BotInfo> migrated_from_chat_id:flags.4?int migrated_from_max_id:flags.4?int pinned_msg_id:flags.5?int stickerset:flags.8?StickerSet available_min_id:flags.9?int folder_id:flags.11?int linked_chat_id:flags.14?int location:flags.15?ChannelLocation slowmode_seconds:flags.17?int slowmode_next_send_date:flags.18?int stats_dc:flags.12?int pts:int call:flags.21?InputGroupCall ttl_period:flags.24?int pending_suggestions:flags.25?Vector<string> = ChatFull;
+chatFull#8a1e2983 flags:# can_set_username:flags.7?true has_scheduled:flags.8?true id:int about:string participants:ChatParticipants chat_photo:flags.2?Photo notify_settings:PeerNotifySettings exported_invite:flags.13?ExportedChatInvite bot_info:flags.3?Vector<BotInfo> pinned_msg_id:flags.6?int folder_id:flags.11?int call:flags.12?InputGroupCall ttl_period:flags.14?int groupcall_default_join_as:flags.15?Peer = ChatFull;
+channelFull#548c3f93 flags:# can_view_participants:flags.3?true can_set_username:flags.6?true can_set_stickers:flags.7?true hidden_prehistory:flags.10?true can_set_location:flags.16?true has_scheduled:flags.19?true can_view_stats:flags.20?true blocked:flags.22?true id:int about:string participants_count:flags.0?int admins_count:flags.1?int kicked_count:flags.2?int banned_count:flags.2?int online_count:flags.13?int read_inbox_max_id:int read_outbox_max_id:int unread_count:int chat_photo:Photo notify_settings:PeerNotifySettings exported_invite:flags.23?ExportedChatInvite bot_info:Vector<BotInfo> migrated_from_chat_id:flags.4?int migrated_from_max_id:flags.4?int pinned_msg_id:flags.5?int stickerset:flags.8?StickerSet available_min_id:flags.9?int folder_id:flags.11?int linked_chat_id:flags.14?int location:flags.15?ChannelLocation slowmode_seconds:flags.17?int slowmode_next_send_date:flags.18?int stats_dc:flags.12?int pts:int call:flags.21?InputGroupCall ttl_period:flags.24?int pending_suggestions:flags.25?Vector<string> groupcall_default_join_as:flags.26?Peer = ChatFull;
 
 chatParticipant#c8d7493e user_id:int inviter_id:int date:int = ChatParticipant;
 chatParticipantCreator#da13538a user_id:int = ChatParticipant;
@@ -286,7 +287,7 @@ updateNewMessage#1f2b0afd message:Message pts:int pts_count:int = Update;
 updateMessageID#4e90bfd6 id:int random_id:long = Update;
 updateDeleteMessages#a20db0e5 messages:Vector<int> pts:int pts_count:int = Update;
 updateUserTyping#5c486927 user_id:int action:SendMessageAction = Update;
-updateChatUserTyping#9a65ea1f chat_id:int user_id:int action:SendMessageAction = Update;
+updateChatUserTyping#86cadb6c chat_id:int from_id:Peer action:SendMessageAction = Update;
 updateChatParticipants#7761198 participants:ChatParticipants = Update;
 updateUserStatus#1bfbd823 user_id:int status:UserStatus = Update;
 updateUserName#a7332b73 user_id:int first_name:string last_name:string username:string = Update;
@@ -363,16 +364,16 @@ updateChannelMessageForwards#6e8a84df channel_id:int id:int forwards:int = Updat
 updateReadChannelDiscussionInbox#1cc7de54 flags:# channel_id:int top_msg_id:int read_max_id:int broadcast_id:flags.0?int broadcast_post:flags.0?int = Update;
 updateReadChannelDiscussionOutbox#4638a26c channel_id:int top_msg_id:int read_max_id:int = Update;
 updatePeerBlocked#246a4b22 peer_id:Peer blocked:Bool = Update;
-updateChannelUserTyping#ff2abe9f flags:# channel_id:int top_msg_id:flags.0?int user_id:int action:SendMessageAction = Update;
+updateChannelUserTyping#6b171718 flags:# channel_id:int top_msg_id:flags.0?int from_id:Peer action:SendMessageAction = Update;
 updatePinnedMessages#ed85eab5 flags:# pinned:flags.0?true peer:Peer messages:Vector<int> pts:int pts_count:int = Update;
 updatePinnedChannelMessages#8588878b flags:# pinned:flags.0?true channel_id:int messages:Vector<int> pts:int pts_count:int = Update;
 updateChat#1330a196 chat_id:int = Update;
 updateGroupCallParticipants#f2ebdb4e call:InputGroupCall participants:Vector<GroupCallParticipant> version:int = Update;
 updateGroupCall#a45eb99b chat_id:int call:GroupCall = Update;
 updatePeerHistoryTTL#bb9bb9a5 flags:# peer:Peer ttl_period:flags.0?int = Update;
-updateChatParticipant#609a6ed4 flags:# chat_id:int date:int user_id:int prev_participant:flags.0?ChatParticipant new_participant:flags.1?ChatParticipant qts:int = Update;
-updateChannelParticipant#65d2b464 flags:# channel_id:int date:int user_id:int prev_participant:flags.0?ChannelParticipant new_participant:flags.1?ChannelParticipant qts:int = Update;
-updateBotStopped#30ec6ebc user_id:int stopped:Bool qts:int = Update;
+updateChatParticipant#f3b3781f flags:# chat_id:int date:int actor_id:int user_id:int prev_participant:flags.0?ChatParticipant new_participant:flags.1?ChatParticipant invite:flags.2?ExportedChatInvite qts:int = Update;
+updateChannelParticipant#7fecb1ec flags:# channel_id:int date:int actor_id:int user_id:int prev_participant:flags.0?ChannelParticipant new_participant:flags.1?ChannelParticipant invite:flags.2?ExportedChatInvite qts:int = Update;
+updateBotStopped#7f9488a user_id:int date:int stopped:Bool qts:int = Update;
 
 updates.state#a56c2a3e pts:int qts:int date:int seq:int unread_count:int = updates.State;
 
@@ -1202,15 +1203,15 @@ peerBlocked#e8fd8014 peer_id:Peer date:int = PeerBlocked;
 stats.messageStats#8999f295 views_graph:StatsGraph = stats.MessageStats;
 
 groupCallDiscarded#7780bcb4 id:long access_hash:long duration:int = GroupCall;
-groupCall#55903081 flags:# join_muted:flags.1?true can_change_join_muted:flags.2?true id:long access_hash:long participants_count:int params:flags.0?DataJSON version:int = GroupCall;
+groupCall#c0c2052e flags:# join_muted:flags.1?true can_change_join_muted:flags.2?true join_date_asc:flags.6?true id:long access_hash:long participants_count:int params:flags.0?DataJSON title:flags.3?string stream_dc_id:flags.4?int record_start_date:flags.5?int version:int = GroupCall;
 
 inputGroupCall#d8aa840f id:long access_hash:long = InputGroupCall;
 
-groupCallParticipant#64c62a15 flags:# muted:flags.0?true left:flags.1?true can_self_unmute:flags.2?true just_joined:flags.4?true versioned:flags.5?true min:flags.8?true muted_by_you:flags.9?true volume_by_admin:flags.10?true user_id:int date:int active_date:flags.3?int source:int volume:flags.7?int = GroupCallParticipant;
+groupCallParticipant#19adba89 flags:# muted:flags.0?true left:flags.1?true can_self_unmute:flags.2?true just_joined:flags.4?true versioned:flags.5?true min:flags.8?true muted_by_you:flags.9?true volume_by_admin:flags.10?true self:flags.12?true peer:Peer date:int active_date:flags.3?int source:int volume:flags.7?int about:flags.11?string raise_hand_rating:flags.13?long = GroupCallParticipant;
 
-phone.groupCall#66ab0bfc call:GroupCall participants:Vector<GroupCallParticipant> participants_next_offset:string users:Vector<User> = phone.GroupCall;
+phone.groupCall#9e727aad call:GroupCall participants:Vector<GroupCallParticipant> participants_next_offset:string chats:Vector<Chat> users:Vector<User> = phone.GroupCall;
 
-phone.groupParticipants#9cfeb92d count:int participants:Vector<GroupCallParticipant> next_offset:string users:Vector<User> version:int = phone.GroupParticipants;
+phone.groupParticipants#f47751b6 count:int participants:Vector<GroupCallParticipant> next_offset:string chats:Vector<Chat> users:Vector<User> version:int = phone.GroupParticipants;
 
 inlineQueryPeerTypeSameBotPM#3081ed9d = InlineQueryPeerType;
 inlineQueryPeerTypePM#833c0fac = InlineQueryPeerType;
@@ -1237,6 +1238,12 @@ chatAdminWithInvites#dfd2330f admin_id:int invites_count:int revoked_invites_cou
 
 messages.chatAdminsWithInvites#b69b72d7 admins:Vector<ChatAdminWithInvites> users:Vector<User> = messages.ChatAdminsWithInvites;
 
+messages.checkedHistoryImportPeer#a24de717 confirm_text:string = messages.CheckedHistoryImportPeer;
+
+phone.joinAsPeers#afe5623f peers:Vector<Peer> chats:Vector<Chat> users:Vector<User> = phone.JoinAsPeers;
+
+phone.exportedGroupCallInvite#204bd158 link:string = phone.ExportedGroupCallInvite;
+
 ---functions---
 
 invokeAfterMsg#cb9f372d {X:Type} msg_id:long query:!X = X;
@@ -1469,8 +1476,8 @@ messages.getEmojiKeywordsDifference#1508b6af lang_code:string from_version:int =
 messages.getEmojiKeywordsLanguages#4e9963b2 lang_codes:Vector<string> = Vector<EmojiLanguage>;
 messages.getEmojiURL#d5b10c26 lang_code:string = EmojiURL;
 messages.getSearchCounters#732eef00 peer:InputPeer filters:Vector<MessagesFilter> = Vector<messages.SearchCounter>;
-messages.requestUrlAuth#e33f5613 peer:InputPeer msg_id:int button_id:int = UrlAuthResult;
-messages.acceptUrlAuth#f729ea98 flags:# write_allowed:flags.0?true peer:InputPeer msg_id:int button_id:int = UrlAuthResult;
+messages.requestUrlAuth#198fb446 flags:# peer:flags.1?InputPeer msg_id:flags.1?int button_id:flags.1?int url:flags.2?string = UrlAuthResult;
+messages.acceptUrlAuth#b12c7125 flags:# write_allowed:flags.0?true peer:flags.1?InputPeer msg_id:flags.1?int button_id:flags.1?int url:flags.2?string = UrlAuthResult;
 messages.hidePeerSettingsBar#4facb138 peer:InputPeer = Bool;
 messages.getScheduledHistory#e2c2685b peer:InputPeer hash:int = messages.Messages;
 messages.getScheduledMessages#bdbb0464 peer:InputPeer id:Vector<int> = messages.Messages;
@@ -1494,12 +1501,14 @@ messages.initHistoryImport#34090c3b peer:InputPeer file:InputFile media_count:in
 messages.uploadImportedMedia#2a862092 peer:InputPeer import_id:long file_name:string media:InputMedia = MessageMedia;
 messages.startHistoryImport#b43df344 peer:InputPeer import_id:long = Bool;
 messages.getExportedChatInvites#a2b5a3f6 flags:# revoked:flags.3?true peer:InputPeer admin_id:InputUser offset_date:flags.2?int offset_link:flags.2?string limit:int = messages.ExportedChatInvites;
+messages.getExportedChatInvite#73746f5c peer:InputPeer link:string = messages.ExportedChatInvite;
 messages.editExportedChatInvite#2e4ffbe flags:# revoked:flags.2?true peer:InputPeer link:string expire_date:flags.0?int usage_limit:flags.1?int = messages.ExportedChatInvite;
 messages.deleteRevokedExportedChatInvites#56987bd5 peer:InputPeer admin_id:InputUser = Bool;
 messages.deleteExportedChatInvite#d464a42b peer:InputPeer link:string = Bool;
 messages.getAdminsWithInvites#3920e6ef peer:InputPeer = messages.ChatAdminsWithInvites;
 messages.getChatInviteImporters#26fb7289 peer:InputPeer link:string offset_date:int offset_user:InputUser limit:int = messages.ChatInviteImporters;
 messages.setHistoryTTL#b80e5fe4 peer:InputPeer period:int = Updates;
+messages.checkHistoryImportPeer#5dc60f03 peer:InputPeer = messages.CheckedHistoryImportPeer;
 
 updates.getState#edd4882a = updates.State;
 updates.getDifference#25939651 flags:# pts:int pts_total_limit:flags.0?int date:int qts:int = updates.Difference;
@@ -1607,15 +1616,19 @@ phone.setCallRating#59ead627 flags:# user_initiative:flags.0?true peer:InputPhon
 phone.saveCallDebug#277add7e peer:InputPhoneCall debug:DataJSON = Bool;
 phone.sendSignalingData#ff7a9383 peer:InputPhoneCall data:bytes = Bool;
 phone.createGroupCall#bd3dabe0 peer:InputPeer random_id:int = Updates;
-phone.joinGroupCall#5f9c8e62 flags:# muted:flags.0?true call:InputGroupCall params:DataJSON = Updates;
+phone.joinGroupCall#b132ff7b flags:# muted:flags.0?true call:InputGroupCall join_as:InputPeer invite_hash:flags.1?string params:DataJSON = Updates;
 phone.leaveGroupCall#500377f9 call:InputGroupCall source:int = Updates;
-phone.editGroupCallMember#a5e76cd8 flags:# muted:flags.0?true call:InputGroupCall user_id:InputUser volume:flags.1?int = Updates;
 phone.inviteToGroupCall#7b393160 call:InputGroupCall users:Vector<InputUser> = Updates;
 phone.discardGroupCall#7a777135 call:InputGroupCall = Updates;
-phone.toggleGroupCallSettings#74bbb43d flags:# call:InputGroupCall join_muted:flags.0?Bool = Updates;
+phone.toggleGroupCallSettings#74bbb43d flags:# reset_invite_hash:flags.1?true call:InputGroupCall join_muted:flags.0?Bool = Updates;
 phone.getGroupCall#c7cb017 call:InputGroupCall = phone.GroupCall;
-phone.getGroupParticipants#c9f1d285 call:InputGroupCall ids:Vector<int> sources:Vector<int> offset:string limit:int = phone.GroupParticipants;
+phone.getGroupParticipants#c558d8ab call:InputGroupCall ids:Vector<InputPeer> sources:Vector<int> offset:string limit:int = phone.GroupParticipants;
 phone.checkGroupCall#b74a7bea call:InputGroupCall source:int = Bool;
+phone.toggleGroupCallRecord#c02a66d7 flags:# start:flags.0?true call:InputGroupCall title:flags.1?string = Updates;
+phone.editGroupCallParticipant#d975eb80 flags:# muted:flags.0?true call:InputGroupCall participant:InputPeer volume:flags.1?int raise_hand:flags.2?Bool = Updates;
+phone.editGroupCallTitle#1ca6ac0a call:InputGroupCall title:string = Updates;
+phone.getGroupCallJoinAs#ef7c213a peer:InputPeer = phone.JoinAsPeers;
+phone.exportGroupCallInvite#e6aa647f flags:# can_self_unmute:flags.0?true call:InputGroupCall = phone.ExportedGroupCallInvite;
 
 langpack.getLangPack#f2f2330a lang_pack:string lang_code:string = LangPackDifference;
 langpack.getStrings#efea3803 lang_pack:string lang_code:string keys:Vector<string> = Vector<LangPackString>;
@@ -1632,4 +1645,4 @@ stats.getMegagroupStats#dcdf8607 flags:# dark:flags.0?true channel:InputChannel
 stats.getMessagePublicForwards#5630281b channel:InputChannel msg_id:int offset_rate:int offset_peer:InputPeer offset_id:int limit:int = messages.Messages;
 stats.getMessageStats#b6e0a3f5 flags:# dark:flags.0?true channel:InputChannel msg_id:int = stats.MessageStats;
 
-// LAYER 124
+// LAYER 125

Telegram/Resources/uwp/AppX/AppxManifest.xml

@@ -9,7 +9,7 @@
   <Identity Name="TelegramMessengerLLP.TelegramDesktop"
     ProcessorArchitecture="ARCHITECTURE"
     Publisher="CN=536BC709-8EE1-4478-AF22-F0F0F26FF64A"
-    Version="2.6.0.0" />
+    Version="2.6.4.0" />
   <Properties>
     <DisplayName>Telegram Desktop</DisplayName>
     <PublisherDisplayName>Telegram Messenger LLP</PublisherDisplayName>

Telegram/Resources/winrc/Telegram.rc

@@ -44,8 +44,8 @@ IDI_ICON1               ICON                    "..\\art\\icon256.ico"
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 2,6,0,0
- PRODUCTVERSION 2,6,0,0
+ FILEVERSION 2,6,4,0
+ PRODUCTVERSION 2,6,4,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -62,10 +62,10 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Telegram FZ-LLC"
             VALUE "FileDescription", "Telegram Desktop"
-            VALUE "FileVersion", "2.6.0.0"
+            VALUE "FileVersion", "2.6.4.0"
             VALUE "LegalCopyright", "Copyright (C) 2014-2021"
             VALUE "ProductName", "Telegram Desktop"
-            VALUE "ProductVersion", "2.6.0.0"
+            VALUE "ProductVersion", "2.6.4.0"
         END
     END
     BLOCK "VarFileInfo"

Telegram/Resources/winrc/Updater.rc

@@ -35,8 +35,8 @@ LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 2,6,0,0
- PRODUCTVERSION 2,6,0,0
+ FILEVERSION 2,6,4,0
+ PRODUCTVERSION 2,6,4,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -53,10 +53,10 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Telegram FZ-LLC"
             VALUE "FileDescription", "Telegram Desktop Updater"
-            VALUE "FileVersion", "2.6.0.0"
+            VALUE "FileVersion", "2.6.4.0"
             VALUE "LegalCopyright", "Copyright (C) 2014-2021"
             VALUE "ProductName", "Telegram Desktop"
-            VALUE "ProductVersion", "2.6.0.0"
+            VALUE "ProductVersion", "2.6.4.0"
         END
     END
     BLOCK "VarFileInfo"

Telegram/SourceFiles/api/api_attached_stickers.cpp

@@ -55,7 +55,7 @@ void AttachedStickers::request(
 		Ui::show(
 			Box<StickerSetBox>(strongController, setId),
 			Ui::LayerOption::KeepOther);
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		_requestId = 0;
 		Ui::show(Box<InformBox>(tr::lng_stickers_not_found(tr::now)));
 	}).send();

Telegram/SourceFiles/api/api_authorizations.cpp

@@ -46,9 +46,9 @@ Authorizations::Entry ParseEntry(const MTPDauthorization &data) {
 		return version;
 	}();
 
-	result.name = QString("%1%2")
-		.arg(appName)
-		.arg(appVer.isEmpty() ? QString() : (' ' + appVer));
+	result.name = QString("%1%2").arg(
+		appName,
+		appVer.isEmpty() ? QString() : (' ' + appVer));
 
 	const auto country = qs(data.vcountry());
 	const auto platform = qs(data.vplatform());
@@ -61,10 +61,10 @@ Authorizations::Entry ParseEntry(const MTPDauthorization &data) {
 	result.activeTime = data.vdate_active().v
 		? data.vdate_active().v
 		: data.vdate_created().v;
-	result.info = QString("%1, %2%3")
-		.arg(qs(data.vdevice_model()))
-		.arg(platform.isEmpty() ? QString() : platform + ' ')
-		.arg(qs(data.vsystem_version()));
+	result.info = QString("%1, %2%3").arg(
+		qs(data.vdevice_model()),
+		platform.isEmpty() ? QString() : platform + ' ',
+		qs(data.vsystem_version()));
 	result.ip = qs(data.vip())
 		+ (country.isEmpty()
 			? QString()
@@ -107,12 +107,12 @@ void Authorizations::reload() {
 		result.match([&](const MTPDaccount_authorizations &auths) {
 			_list = (
 				auths.vauthorizations().v
-			) | ranges::view::transform([](const MTPAuthorization &d) {
+			) | ranges::views::transform([](const MTPAuthorization &d) {
 				return ParseEntry(d.c_authorization());
 			}) | ranges::to<List>;
 			_listChanges.fire({});
 		});
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		_requestId = 0;
 	}).send();
 }
@@ -123,7 +123,7 @@ void Authorizations::cancelCurrentRequest() {
 
 void Authorizations::requestTerminate(
 		Fn<void(const MTPBool &result)> &&done,
-		Fn<void(const RPCError &error)> &&fail,
+		Fn<void(const MTP::Error &error)> &&fail,
 		std::optional<uint64> hash) {
 	const auto send = [&](auto request) {
 		_api.request(

Telegram/SourceFiles/api/api_authorizations.h

@@ -30,7 +30,7 @@ public:
 	void cancelCurrentRequest();
 	void requestTerminate(
 		Fn<void(const MTPBool &result)> &&done,
-		Fn<void(const RPCError &error)> &&fail,
+		Fn<void(const MTP::Error &error)> &&fail,
 		std::optional<uint64> hash = std::nullopt);
 
 	[[nodiscard]] crl::time lastReceivedTime();

Telegram/SourceFiles/api/api_bot.cpp

@@ -34,7 +34,7 @@ void SendBotCallbackData(
 		int row,
 		int column,
 		std::optional<MTPInputCheckPasswordSRP> password = std::nullopt,
-		Fn<void(const RPCError &)> handleError = nullptr) {
+		Fn<void(const MTP::Error &)> handleError = nullptr) {
 	if (!IsServerMsgId(item->id)) {
 		return;
 	}
@@ -115,7 +115,7 @@ void SendBotCallbackData(
 				Ui::hideLayer();
 			}
 		});
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		const auto item = owner->message(fullId);
 		if (!item) {
 			return;
@@ -170,7 +170,7 @@ void SendBotCallbackDataWithPassword(
 		return;
 	}
 	api->reloadPasswordState();
-	SendBotCallbackData(item, row, column, MTP_inputCheckPasswordEmpty(), [=](const RPCError &error) {
+	SendBotCallbackData(item, row, column, MTP_inputCheckPasswordEmpty(), [=](const MTP::Error &error) {
 		auto box = PrePasswordErrorBox(
 			error,
 			session,
@@ -212,7 +212,7 @@ void SendBotCallbackDataWithPassword(
 						return;
 					}
 					if (const auto item = owner->message(fullId)) {
-						SendBotCallbackData(item, row, column, result.result, [=](const RPCError &error) {
+						SendBotCallbackData(item, row, column, result.result, [=](const MTP::Error &error) {
 							if (*box) {
 								(*box)->handleCustomCheckError(error);
 							}

Telegram/SourceFiles/api/api_chat_invite.cpp

@@ -75,7 +75,7 @@ void CheckChatInvite(
 				}
 			}
 		});
-	}, [=](const RPCError &error) {
+	}, [=](const MTP::Error &error) {
 		if (error.code() != 400) {
 			return;
 		}

Telegram/SourceFiles/api/api_common.h

@@ -33,6 +33,7 @@ struct SendAction {
 	MsgId replyTo = 0;
 	bool clearDraft = true;
 	bool generateLocal = true;
+	MsgId replaceMediaOf = 0;
 };
 
 struct MessageToSend {

Telegram/SourceFiles/api/api_editing.cpp

@@ -17,7 +17,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/history_item.h"
 #include "lang/lang_keys.h"
 #include "main/main_session.h"
-#include "mtproto/mtproto_rpc_sender.h"
+#include "mtproto/mtproto_response.h"
 
 namespace Api {
 namespace {
@@ -131,7 +131,7 @@ void EditMessageWithUploadedMedia(
 			item->setIsLocalUpdateMedia(false);
 		}
 	};
-	const auto fail = [=](const RPCError &error) {
+	const auto fail = [=](const MTP::Error &error) {
 		const auto err = error.type();
 		const auto session = &item->history()->session();
 		const auto notModified = (err == u"MESSAGE_NOT_MODIFIED"_q);
@@ -157,7 +157,7 @@ void EditMessageWithUploadedMedia(
 void RescheduleMessage(
 		not_null<HistoryItem*> item,
 		SendOptions options) {
-	const auto empty = [](const auto &r) {};
+	const auto empty = [] {};
 	EditMessage(item, options, empty, empty);
 }
 
@@ -189,7 +189,7 @@ mtpRequestId EditCaption(
 		const TextWithEntities &caption,
 		SendOptions options,
 		Fn<void(const MTPUpdates &)> done,
-		Fn<void(const RPCError &)> fail) {
+		Fn<void(const MTP::Error &)> fail) {
 	return EditMessage(item, caption, options, done, fail);
 }
 
@@ -198,7 +198,7 @@ mtpRequestId EditTextMessage(
 		const TextWithEntities &caption,
 		SendOptions options,
 		Fn<void(const MTPUpdates &, mtpRequestId requestId)> done,
-		Fn<void(const RPCError &, mtpRequestId requestId)> fail) {
+		Fn<void(const MTP::Error &, mtpRequestId requestId)> fail) {
 	const auto callback = [=](
 			const auto &result,
 			Fn<void()> applyUpdates,

Telegram/SourceFiles/api/api_editing.h

@@ -8,7 +8,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #pragma once
 
 class HistoryItem;
-class RPCError;
+
+namespace MTP {
+class Error;
+} // namespace MTP
 
 namespace Api {
 
@@ -40,13 +43,13 @@ mtpRequestId EditCaption(
 	const TextWithEntities &caption,
 	SendOptions options,
 	Fn<void(const MTPUpdates &)> done,
-	Fn<void(const RPCError &)> fail);
+	Fn<void(const MTP::Error &)> fail);
 
 mtpRequestId EditTextMessage(
 	not_null<HistoryItem*> item,
 	const TextWithEntities &caption,
 	SendOptions options,
 	Fn<void(const MTPUpdates &, mtpRequestId requestId)> done,
-	Fn<void(const RPCError &, mtpRequestId requestId)> fail);
+	Fn<void(const MTP::Error &, mtpRequestId requestId)> fail);
 
 } // namespace Api

Telegram/SourceFiles/api/api_global_privacy.cpp

@@ -33,7 +33,7 @@ void GlobalPrivacy::reload(Fn<void()> callback) {
 		for (const auto &callback : base::take(_callbacks)) {
 			callback();
 		}
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		_requestId = 0;
 		for (const auto &callback : base::take(_callbacks)) {
 			callback();
@@ -86,7 +86,7 @@ void GlobalPrivacy::update(bool archiveAndMute) {
 	)).done([=](const MTPGlobalPrivacySettings &result) {
 		_requestId = 0;
 		apply(result);
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		_requestId = 0;
 	}).send();
 	_archiveAndMute = archiveAndMute;

Telegram/SourceFiles/api/api_invite_links.cpp

@@ -51,7 +51,7 @@ JoinedByLinkSlice ParseJoinedByLinkSlice(
 		owner.processUsers(data.vusers());
 		result.count = data.vcount().v;
 		result.users.reserve(data.vimporters().v.size());
-		for (const auto importer : data.vimporters().v) {
+		for (const auto &importer : data.vimporters().v) {
 			importer.match([&](const MTPDchatInviteImporter &data) {
 				result.users.push_back({
 					.user = owner.user(data.vuser_id().v),
@@ -110,7 +110,7 @@ void InviteLinks::performCreate(
 				callback(link);
 			}
 		}
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		_createCallbacks.erase(peer);
 	}).send();
 }
@@ -282,7 +282,7 @@ void InviteLinks::performEdit(
 				prepend(peer, admin, data.vnew_invite());
 			}
 		});
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		_editCallbacks.erase(key);
 	}).send();
 }
@@ -344,7 +344,7 @@ void InviteLinks::destroy(
 			.admin = admin,
 			.was = key.link,
 		});
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		_deleteCallbacks.erase(key);
 	}).send();
 }
@@ -374,7 +374,7 @@ void InviteLinks::destroyAllRevoked(
 			}
 		}
 		_allRevokedDestroyed.fire({ peer, admin });
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 	}).send();
 }
 
@@ -415,7 +415,7 @@ void InviteLinks::requestMyLinks(not_null<PeerData*> peer) {
 			i->second.count = std::max(slice.count, int(existing.size()));
 		}
 		notify(peer);
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		_firstSliceRequests.remove(peer);
 	}).send();
 	_firstSliceRequests.emplace(peer, requestId);
@@ -493,7 +493,7 @@ void InviteLinks::requestJoinedFirstSlice(LinkKey key) {
 		_firstJoinedRequests.remove(key);
 		_firstJoined[key] = ParseJoinedByLinkSlice(key.peer, result);
 		_joinedFirstSliceLoaded.fire_copy(key);
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		_firstJoinedRequests.remove(key);
 	}).send();
 	_firstJoinedRequests.emplace(key, requestId);
@@ -653,7 +653,7 @@ void InviteLinks::requestMoreLinks(
 		MTP_int(kPerPage)
 	)).done([=](const MTPmessages_ExportedChatInvites &result) {
 		done(parseSlice(peer, result));
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		done(Links());
 	}).send();
 }

Telegram/SourceFiles/api/api_self_destruct.cpp

@@ -25,7 +25,7 @@ void SelfDestruct::reload() {
 		result.match([&](const MTPDaccountDaysTTL &data) {
 			_days = data.vdays().v;
 		});
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		_requestId = 0;
 	}).send();
 }
@@ -42,7 +42,7 @@ void SelfDestruct::update(int days) {
 		MTP_accountDaysTTL(MTP_int(days))
 	)).done([=](const MTPBool &result) {
 		_requestId = 0;
-	}).fail([=](const RPCError &result) {
+	}).fail([=](const MTP::Error &result) {
 		_requestId = 0;
 	}).send();
 	_days = days;

Telegram/SourceFiles/api/api_send_progress.cpp

@@ -65,7 +65,10 @@ void SendProgressManager::update(
 		SendProgressType type,
 		int progress) {
 	const auto peer = history->peer;
-	if (peer->isSelf() || (peer->isChannel() && !peer->isMegagroup())) {
+	if (peer->isSelf()
+		|| (peer->isChannel()
+			&& !peer->isMegagroup()
+			&& type != SendProgressType::Speaking)) {
 		return;
 	}
 

Telegram/SourceFiles/api/api_sending.cpp

@@ -150,7 +150,7 @@ void SendExistingMedia(
 			)).done([=](const MTPUpdates &result) {
 				api->applyUpdates(result, randomId);
 				finish();
-			}).fail([=](const RPCError &error) {
+			}).fail([=](const MTP::Error &error) {
 				if (error.code() == 400
 					&& error.type().startsWith(qstr("FILE_REFERENCE_"))) {
 					api->refreshFileReference(origin, [=](const auto &result) {
@@ -324,7 +324,7 @@ bool SendDice(Api::MessageToSend &message) {
 		)).done([=](const MTPUpdates &result) {
 			api->applyUpdates(result, randomId);
 			finish();
-		}).fail([=](const RPCError &error) {
+		}).fail([=](const MTP::Error &error) {
 			api->sendMessageFail(error, peer, randomId, newId);
 			finish();
 		}).afterRequest(history->sendRequestId
@@ -344,13 +344,15 @@ void FillMessagePostFlags(
 
 void SendConfirmedFile(
 		not_null<Main::Session*> session,
-		const std::shared_ptr<FileLoadResult> &file,
-		const std::optional<FullMsgId> &oldId) {
-	const auto isEditing = oldId.has_value();
+		const std::shared_ptr<FileLoadResult> &file) {
+	const auto isEditing = file->to.replaceMediaOf != 0;
 	const auto channelId = peerToChannel(file->to.peer);
 
-	const auto newId = oldId.value_or(
-		FullMsgId(channelId, session->data().nextLocalMessageId()));
+	const auto newId = FullMsgId(
+		channelId,
+		isEditing
+			? file->to.replaceMediaOf
+			: session->data().nextLocalMessageId());
 	auto groupId = file->album ? file->album->groupId : uint64(0);
 	if (file->album) {
 		const auto proj = [](const SendingAlbum::Item &item) {
@@ -361,7 +363,6 @@ void SendConfirmedFile(
 
 		it->msgId = newId;
 	}
-	file->edit = isEditing;
 	session->uploader().upload(newId, file);
 
 	const auto itemToEdit = isEditing

Telegram/SourceFiles/api/api_sending.h

@@ -34,7 +34,6 @@ void FillMessagePostFlags(
 
 void SendConfirmedFile(
 	not_null<Main::Session*> session,
-	const std::shared_ptr<FileLoadResult> &file,
-	const std::optional<FullMsgId> &oldId);
+	const std::shared_ptr<FileLoadResult> &file);
 
 } // namespace Api

Telegram/SourceFiles/api/api_sensitive_content.cpp

@@ -36,7 +36,7 @@ void SensitiveContent::reload() {
 			_enabled = data.is_sensitive_enabled();
 			_canChange = data.is_sensitive_can_change();
 		});
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		_requestId = 0;
 	}).send();
 }
@@ -63,7 +63,7 @@ void SensitiveContent::update(bool enabled) {
 		MTP_flags(enabled ? Flag::f_sensitive_enabled : Flag(0))
 	)).done([=](const MTPBool &result) {
 		_requestId = 0;
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		_requestId = 0;
 	}).send();
 	_enabled = enabled;

Telegram/SourceFiles/api/api_single_message_search.cpp

@@ -117,7 +117,7 @@ std::optional<HistoryItem*> SingleMessageSearch::performLookupByChannel(
 		} else {
 			fail();
 		}
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		fail();
 	}).send();
 
@@ -154,7 +154,7 @@ std::optional<HistoryItem*> SingleMessageSearch::performLookupById(
 				fail();
 			}
 		});
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		fail();
 	}).send();
 
@@ -198,7 +198,7 @@ std::optional<HistoryItem*> SingleMessageSearch::performLookupByUsername(
 				fail();
 			}
 		});
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		fail();
 	}).send();
 

Telegram/SourceFiles/api/api_toggling_media.cpp

@@ -33,7 +33,7 @@ void ToggleExistingMedia(
 			if (mtpIsTrue(result)) {
 				done();
 			}
-		}).fail([=](const RPCError &error) {
+		}).fail([=](const MTP::Error &error) {
 			if (error.code() == 400
 				&& error.type().startsWith(u"FILE_REFERENCE_"_q)) {
 				auto refreshed = [=](const Data::UpdatedFileReferences &d) {

Telegram/SourceFiles/api/api_updates.cpp

@@ -240,16 +240,16 @@ Updates::Updates(not_null<Main::Session*> session)
 	) | rpl::filter([](not_null<PeerData*> peer) {
 		return peer->isChat() || peer->isMegagroup();
 	}) | rpl::start_with_next([=](not_null<PeerData*> peer) {
-		if (const auto users = _pendingSpeakingCallMembers.take(peer)) {
+		if (const auto list = _pendingSpeakingCallParticipants.take(peer)) {
 			if (const auto call = peer->groupCall()) {
-				for (const auto [userId, when] : *users) {
+				for (const auto &[participantPeerId, when] : *list) {
 					call->applyActiveUpdate(
-						userId,
+						participantPeerId,
 						Data::LastSpokeTimes{
 							.anything = when,
 							.voice = when
 						},
-						peer->owner().userLoaded(userId));
+						peer->owner().peerLoaded(participantPeerId));
 				}
 			}
 		}
@@ -278,11 +278,25 @@ void Updates::checkLastUpdate(bool afterSleep) {
 void Updates::feedUpdateVector(
 		const MTPVector<MTPUpdate> &updates,
 		bool skipMessageIds) {
-	for (const auto &update : updates.v) {
-		if (skipMessageIds && update.type() == mtpc_updateMessageID) {
+	auto list = updates.v;
+	const auto needsSorting = ranges::contains(
+		list,
+		mtpc_updateGroupCallParticipants,
+		&MTPUpdate::type);
+	if (needsSorting) {
+		ranges::stable_sort(list, std::less<>(), [](const MTPUpdate &entry) {
+			if (entry.type() == mtpc_updateGroupCallParticipants) {
+				return 0;
+			} else {
+				return 1;
+			}
+		});
+	}
+	for (const auto &entry : std::as_const(list)) {
+		if (skipMessageIds && entry.type() == mtpc_updateMessageID) {
 			continue;
 		}
-		feedUpdate(update);
+		feedUpdate(entry);
 	}
 	session().data().sendHistoryChangeNotifications();
 }
@@ -398,11 +412,11 @@ void Updates::feedChannelDifference(
 
 void Updates::channelDifferenceFail(
 		not_null<ChannelData*> channel,
-		const RPCError &error) {
-	LOG(("RPC Error in getChannelDifference: %1 %2: %3"
-		).arg(error.code()
-		).arg(error.type()
-		).arg(error.description()));
+		const MTP::Error &error) {
+	LOG(("RPC Error in getChannelDifference: %1 %2: %3").arg(
+		QString::number(error.code()),
+		error.type(),
+		error.description()));
 	failDifferenceStartTimerFor(channel);
 }
 
@@ -556,11 +570,11 @@ void Updates::feedDifference(
 	feedUpdateVector(other, true);
 }
 
-void Updates::differenceFail(const RPCError &error) {
-	LOG(("RPC Error in getDifference: %1 %2: %3"
-		).arg(error.code()
-		).arg(error.type()
-		).arg(error.description()));
+void Updates::differenceFail(const MTP::Error &error) {
+	LOG(("RPC Error in getDifference: %1 %2: %3").arg(
+		QString::number(error.code()),
+		error.type(),
+		error.description()));
 	failDifferenceStartTimerFor(nullptr);
 }
 
@@ -643,7 +657,7 @@ void Updates::getDifference() {
 		MTP_int(_updatesQts)
 	)).done([=](const MTPupdates_Difference &result) {
 		differenceDone(result);
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		differenceFail(error);
 	}).send();
 }
@@ -678,7 +692,7 @@ void Updates::getChannelDifference(
 		MTP_int(kChannelGetDifferenceLimit)
 	)).done([=](const MTPupdates_ChannelDifference &result) {
 		channelDifferenceDone(channel, result);
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		channelDifferenceFail(channel, error);
 	}).send();
 }
@@ -742,7 +756,7 @@ void Updates::channelRangeDifferenceSend(
 	)).done([=](const MTPupdates_ChannelDifference &result) {
 		_rangeDifferenceRequests.remove(channel);
 		channelRangeDifferenceDone(channel, range, result);
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		_rangeDifferenceRequests.remove(channel);
 	}).send();
 	_rangeDifferenceRequests.emplace(channel, requestId);
@@ -862,7 +876,7 @@ void Updates::updateOnline(bool gotOtherOffline) {
 				MTP_bool(!isOnline)
 			)).done([=](const MTPBool &result) {
 				Core::App().quitPreventFinished();
-			}).fail([=](const RPCError &error) {
+			}).fail([=](const MTP::Error &error) {
 				Core::App().quitPreventFinished();
 			}).send();
 		}
@@ -915,16 +929,16 @@ bool Updates::isQuitPrevent() {
 void Updates::handleSendActionUpdate(
 		PeerId peerId,
 		MsgId rootId,
-		UserId userId,
+		PeerId fromId,
 		const MTPSendMessageAction &action) {
 	const auto history = session().data().historyLoaded(peerId);
 	if (!history) {
 		return;
 	}
 	const auto peer = history->peer;
-	const auto user = (userId == session().userId())
+	const auto from = (fromId == session().userPeerId())
 		? session().user().get()
-		: session().data().userLoaded(userId);
+		: session().data().peerLoaded(fromId);
 	const auto isSpeakingInCall = (action.type()
 		== mtpc_speakingInGroupCallAction);
 	if (isSpeakingInCall) {
@@ -935,9 +949,9 @@ void Updates::handleSendActionUpdate(
 		const auto now = crl::now();
 		if (call) {
 			call->applyActiveUpdate(
-				userId,
+				fromId,
 				Data::LastSpokeTimes{ .anything = now, .voice = now },
-				user);
+				from);
 		} else {
 			const auto chat = peer->asChat();
 			const auto channel = peer->asChannel();
@@ -945,13 +959,15 @@ void Updates::handleSendActionUpdate(
 				? (chat->flags() & MTPDchat::Flag::f_call_active)
 				: (channel->flags() & MTPDchannel::Flag::f_call_active);
 			if (active) {
-				_pendingSpeakingCallMembers.emplace(
-					peer).first->second[userId] = now;
-				session().api().requestFullPeer(peer);
+				_pendingSpeakingCallParticipants.emplace(
+					peer).first->second[fromId] = now;
+				if (peerIsUser(fromId)) {
+					session().api().requestFullPeer(peer);
+				}
 			}
 		}
 	}
-	if (!user || user->isSelf()) {
+	if (!from || !from->isUser() || from->isSelf()) {
 		return;
 	}
 	const auto when = requestingDifference()
@@ -960,7 +976,7 @@ void Updates::handleSendActionUpdate(
 	session().data().registerSendAction(
 		history,
 		rootId,
-		user,
+		from->asUser(),
 		action,
 		when);
 }
@@ -1539,22 +1555,6 @@ void Updates::feedUpdate(const MTPUpdate &update) {
 		}
 	} break;
 
-	//case mtpc_updateReadFeed: { // #feed
-	//	const auto &d = update.c_updateReadFeed();
-	//	const auto feedId = d.vfeed_id().v;
-	//	if (const auto feed = session().data().feedLoaded(feedId)) {
-	//		feed->setUnreadPosition(
-	//			Data::FeedPositionFromMTP(d.vmax_position()));
-	//		if (d.vunread_count() && d.vunread_muted_count()) {
-	//			feed->setUnreadCounts(
-	//				d.vunread_count()->v,
-	//				d.vunread_muted_count()->v);
-	//		} else {
-	//			session().data().histories().requestDialogEntry(feed);
-	//		}
-	//	}
-	//} break;
-
 	case mtpc_updateDialogUnreadMark: {
 		const auto &data = update.c_updateDialogUnreadMark();
 		data.vpeer().match(
@@ -1658,19 +1658,21 @@ void Updates::feedUpdate(const MTPUpdate &update) {
 
 	case mtpc_updateChatUserTyping: {
 		auto &d = update.c_updateChatUserTyping();
+		const auto fromId = peerFromMTP(d.vfrom_id());
 		handleSendActionUpdate(
 			peerFromChat(d.vchat_id()),
 			0,
-			d.vuser_id().v,
+			fromId,
 			d.vaction());
 	} break;
 
 	case mtpc_updateChannelUserTyping: {
 		const auto &d = update.c_updateChannelUserTyping();
+		const auto fromId = peerFromMTP(d.vfrom_id());
 		handleSendActionUpdate(
 			peerFromChannel(d.vchannel_id()),
 			d.vtop_msg_id().value_or_empty(),
-			d.vuser_id().v,
+			fromId,
 			d.vaction());
 	} break;
 
@@ -2003,17 +2005,10 @@ void Updates::feedUpdate(const MTPUpdate &update) {
 					channel->updateFullForced();
 				}
 				const auto history = channel->owner().history(channel);
-				//if (const auto feed = channel->feed()) { // #feed
-				//	feed->requestChatListMessage();
-				//	if (!feed->unreadCountKnown()) {
-				//		feed->owner().histories().requestDialogEntry(feed);
-				//	}
-				//} else {
-					history->requestChatListMessage();
-					if (!history->unreadCountKnown()) {
-						history->owner().histories().requestDialogEntry(history);
-					}
-				//}
+				history->requestChatListMessage();
+				if (!history->unreadCountKnown()) {
+					history->owner().histories().requestDialogEntry(history);
+				}
 				if (!channel->amCreator()) {
 					session().api().requestSelfParticipant(channel);
 				}

Telegram/SourceFiles/api/api_updates.h

@@ -10,10 +10,13 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_pts_waiter.h"
 #include "base/timer.h"
 
-class RPCError;
 class ApiWrap;
 class History;
 
+namespace MTP {
+class Error;
+} // namespace MTP
+
 namespace Main {
 class Session;
 } // namespace Main
@@ -89,7 +92,7 @@ private:
 		not_null<ChannelData*> channel,
 		ChannelDifferenceRequest from = ChannelDifferenceRequest::Unknown);
 	void differenceDone(const MTPupdates_Difference &result);
-	void differenceFail(const RPCError &error);
+	void differenceFail(const MTP::Error &error);
 	void feedDifference(
 		const MTPVector<MTPUser> &users,
 		const MTPVector<MTPChat> &chats,
@@ -102,7 +105,7 @@ private:
 		const MTPupdates_ChannelDifference &diff);
 	void channelDifferenceFail(
 		not_null<ChannelData*> channel,
-		const RPCError &error);
+		const MTP::Error &error);
 	void failDifferenceStartTimerFor(ChannelData *channel);
 	void feedChannelDifference(const MTPDupdates_channelDifference &data);
 
@@ -125,7 +128,7 @@ private:
 	void handleSendActionUpdate(
 		PeerId peerId,
 		MsgId rootId,
-		UserId userId,
+		PeerId fromId,
 		const MTPSendMessageAction &action);
 
 	const not_null<Main::Session*> _session;
@@ -168,7 +171,7 @@ private:
 	base::flat_map<int, ActiveChatTracker> _activeChats;
 	base::flat_map<
 		not_null<PeerData*>,
-		base::flat_map<UserId, crl::time>> _pendingSpeakingCallMembers;
+		base::flat_map<PeerId, crl::time>> _pendingSpeakingCallParticipants;
 
 	mtpRequestId _onlineRequest = 0;
 	base::Timer _idleFinishTimer;

Telegram/SourceFiles/apiwrap.h

@@ -171,7 +171,6 @@ public:
 		not_null<History*> history,
 		bool archived,
 		Fn<void()> callback);
-	//void ungroupAllFromFeed(not_null<Data::Feed*> feed); // #feed
 
 	using RequestMessageDataCallback = Fn<void(ChannelData*, MsgId)>;
 	void requestMessageData(
@@ -190,15 +189,10 @@ public:
 	rpl::producer<bool> dialogsLoadMayBlockByDate() const;
 	rpl::producer<bool> dialogsLoadBlockedByDate() const;
 
-	//void applyFeedSources(const MTPDchannels_feedSources &data); // #feed
-	//void setFeedChannels(
-	//	not_null<Data::Feed*> feed,
-	//	const std::vector<not_null<ChannelData*>> &channels);
-
 	void requestWallPaper(
 		const QString &slug,
 		Fn<void(const Data::WallPaper &)> done,
-		Fn<void(const RPCError &)> fail);
+		Fn<void(const MTP::Error &)> fail);
 
 	void requestFullPeer(not_null<PeerData*> peer);
 	void requestPeer(not_null<PeerData*> peer);
@@ -233,7 +227,7 @@ public:
 	void checkChatInvite(
 		const QString &hash,
 		FnMut<void(const MTPChatInvite &)> done,
-		FnMut<void(const RPCError &)> fail);
+		Fn<void(const MTP::Error &)> fail);
 	void importChatInvite(const QString &hash);
 
 	void requestChannelMembersForAdd(
@@ -249,7 +243,7 @@ public:
 	void migrateChat(
 		not_null<ChatData*> chat,
 		FnMut<void(not_null<ChannelData*>)> done,
-		FnMut<void(const RPCError &)> fail = nullptr);
+		Fn<void(const MTP::Error &)> fail = nullptr);
 
 	void markMediaRead(const base::flat_set<not_null<HistoryItem*>> &items);
 	void markMediaRead(not_null<HistoryItem*> item);
@@ -334,14 +328,6 @@ public:
 		not_null<UserData*> user,
 		PhotoId afterId);
 
-	//void requestFeedChannels( // #feed
-	//	not_null<Data::Feed*> feed);
-	//void requestFeedMessages(
-	//	not_null<Data::Feed*> feed,
-	//	Data::MessagePosition messageId,
-	//	SliceType slice);
-	//void saveDefaultFeedId(FeedId id, bool isDefaultFeedId);
-
 	void stickerSetInstalled(uint64 setId) {
 		_stickerSetInstalled.fire_copy(setId);
 	}
@@ -384,9 +370,6 @@ public:
 		const QString &lastName,
 		const SendAction &action);
 	void shareContact(not_null<UserData*> user, const SendAction &action);
-	//void readFeed( // #feed
-	//	not_null<Data::Feed*> feed,
-	//	Data::MessagePosition position);
 	void applyAffectedMessages(
 		not_null<PeerData*> peer,
 		const MTPmessages_AffectedMessages &result);
@@ -411,8 +394,7 @@ public:
 		Ui::PreparedList &&list,
 		SendMediaType type,
 		TextWithTags &&caption,
-		const SendAction &action,
-		MsgId msgIdToEdit);
+		const SendAction &action);
 
 	void sendUploadedPhoto(
 		FullMsgId localId,
@@ -433,7 +415,7 @@ public:
 		not_null<InlineBots::Result*> data,
 		const SendAction &action);
 	void sendMessageFail(
-		const RPCError &error,
+		const MTP::Error &error,
 		not_null<PeerData*> peer,
 		uint64 randomId = 0,
 		FullMsgId itemId = FullMsgId());
@@ -470,7 +452,7 @@ public:
 		const PollData &data,
 		const SendAction &action,
 		Fn<void()> done,
-		Fn<void(const RPCError &error)> fail);
+		Fn<void(const MTP::Error &error)> fail);
 	void sendPollVotes(
 		FullMsgId itemId,
 		const std::vector<QByteArray> &options);
@@ -565,17 +547,11 @@ private:
 		const QVector<MTPChannelParticipant> &participants);
 
 	void jumpToHistoryDate(not_null<PeerData*> peer, const QDate &date);
-	//void jumpToFeedDate(not_null<Data::Feed*> feed, const QDate &date); // #feed
 	template <typename Callback>
 	void requestMessageAfterDate(
 		not_null<PeerData*> peer,
 		const QDate &date,
 		Callback &&callback);
-	//template <typename Callback> // #feed
-	//void requestMessageAfterDate(
-	//	not_null<Data::Feed*> feed,
-	//	const QDate &date,
-	//	Callback &&callback);
 
 	void sharedMediaDone(
 		not_null<PeerData*> peer,
@@ -589,13 +565,6 @@ private:
 		PhotoId photoId,
 		const MTPphotos_Photos &result);
 
-	//void feedChannelsDone(not_null<Data::Feed*> feed); // #feed
-	//void feedMessagesDone(
-	//	not_null<Data::Feed*> feed,
-	//	Data::MessagePosition messageId,
-	//	SliceType slice,
-	//	const MTPmessages_FeedMessages &result);
-
 	void sendSharedContact(
 		const QString &phone,
 		const QString &firstName,
@@ -636,8 +605,6 @@ private:
 		uint64 randomId);
 	FileLoadTo fileLoadTaskOptions(const SendAction &action) const;
 
-	//void readFeeds(); // #feed
-
 	void getTopPromotionDelayed(TimeId now, TimeId next);
 	void topPromotionDone(const MTPhelp_PromoData &proxy);
 
@@ -660,7 +627,7 @@ private:
 	void migrateDone(
 		not_null<PeerData*> peer,
 		not_null<ChannelData*> channel);
-	void migrateFail(not_null<PeerData*> peer, const RPCError &error);
+	void migrateFail(not_null<PeerData*> peer, const MTP::Error &error);
 
 	not_null<Main::Session*> _session;
 
@@ -737,20 +704,6 @@ private:
 
 	base::flat_map<not_null<UserData*>, mtpRequestId> _userPhotosRequests;
 
-	//base::flat_set<not_null<Data::Feed*>> _feedChannelsGetRequests; // #feed
-	//base::flat_map<
-	//	not_null<Data::Feed*>,
-	//	mtpRequestId> _feedChannelsSetRequests;
-	//base::flat_set<std::tuple<
-	//	not_null<Data::Feed*>,
-	//	Data::MessagePosition,
-	//	SliceType>> _feedMessagesRequests;
-	//base::flat_set<std::tuple<
-	//	not_null<Data::Feed*>,
-	//	Data::MessagePosition,
-	//	SliceType>> _feedMessagesRequestsPending;
-	//mtpRequestId _saveDefaultFeedIdRequest = 0;
-
 	std::unique_ptr<DialogsLoadState> _dialogsLoadState;
 	TimeId _dialogsLoadTill = 0;
 	rpl::variable<bool> _dialogsLoadMayBlockByDate = false;
@@ -769,11 +722,6 @@ private:
 
 	rpl::event_stream<uint64> _stickerSetInstalled;
 
-	// #feed
-	//base::flat_map<not_null<Data::Feed*>, crl::time> _feedReadsDelayed;
-	//base::flat_map<not_null<Data::Feed*>, mtpRequestId> _feedReadRequests;
-	//base::Timer _feedReadTimer;
-
 	mtpRequestId _topPromotionRequestId = 0;
 	std::pair<QString, uint32> _topPromotionKey;
 	TimeId _topPromotionNextRequestTime = TimeId(0);
@@ -793,11 +741,11 @@ private:
 
 	mtpRequestId _checkInviteRequestId = 0;
 	FnMut<void(const MTPChatInvite &result)> _checkInviteDone;
-	FnMut<void(const RPCError &error)> _checkInviteFail;
+	Fn<void(const MTP::Error &error)> _checkInviteFail;
 
 	struct MigrateCallbacks {
 		FnMut<void(not_null<ChannelData*>)> done;
-		FnMut<void(const RPCError&)> fail;
+		Fn<void(const MTP::Error&)> fail;
 	};
 	base::flat_map<
 		not_null<PeerData*>,
@@ -837,7 +785,7 @@ private:
 	mtpRequestId _wallPaperRequestId = 0;
 	QString _wallPaperSlug;
 	Fn<void(const Data::WallPaper &)> _wallPaperDone;
-	Fn<void(const RPCError &)> _wallPaperFail;
+	Fn<void(const MTP::Error &)> _wallPaperFail;
 
 	mtpRequestId _contactSignupSilentRequestId = 0;
 	std::optional<bool> _contactSignupSilent;

Telegram/SourceFiles/boxes/add_contact_box.cpp

@@ -586,7 +586,7 @@ void GroupInfoBox::createGroup(
 
 		Ui::hideLayer(); // Destroys 'this'.
 		ChatCreateDone(navigation, std::move(image), result);
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		_creationRequestId = 0;
 		if (error.type() == qstr("NO_CHAT_TITLE")) {
 			auto weak = Ui::MakeWeak(this);
@@ -703,7 +703,7 @@ void GroupInfoBox::createChannel(const QString &title, const QString &descriptio
 			LOG(("API Error: channel not found in updates (GroupInfoBox::creationDone)"));
 			closeBox();
 		}
-	}).fail([this](const RPCError &error) {
+	}).fail([this](const MTP::Error &error) {
 		_creationRequestId = 0;
 		if (error.type() == "NO_CHAT_TITLE") {
 			_title->setFocus();
@@ -824,7 +824,7 @@ void SetupChannelBox::prepare() {
 	_checkRequestId = _api.request(MTPchannels_CheckUsername(
 		_channel->inputChannel,
 		MTP_string("preston")
-	)).fail([=](const RPCError &error) {
+	)).fail([=](const MTP::Error &error) {
 		firstCheckFail(error);
 	}).send();
 
@@ -983,7 +983,7 @@ void SetupChannelBox::save() {
 			MTP_string(_sentUsername)
 		)).done([=](const MTPBool &result) {
 			updateDone(result);
-		}).fail([=](const RPCError &error) {
+		}).fail([=](const MTP::Error &error) {
 			updateFail(error);
 		}).send();
 	};
@@ -1055,7 +1055,7 @@ void SetupChannelBox::check() {
 			MTP_string(link)
 		)).done([=](const MTPBool &result) {
 			checkDone(result);
-		}).fail([=](const RPCError &error) {
+		}).fail([=](const MTP::Error &error) {
 			checkFail(error);
 		}).send();
 	}
@@ -1095,7 +1095,7 @@ void SetupChannelBox::updateDone(const MTPBool &result) {
 	closeBox();
 }
 
-void SetupChannelBox::updateFail(const RPCError &error) {
+void SetupChannelBox::updateFail(const MTP::Error &error) {
 	_saveRequestId = 0;
 	QString err(error.type());
 	if (err == "USERNAME_NOT_MODIFIED"
@@ -1130,7 +1130,7 @@ void SetupChannelBox::checkDone(const MTPBool &result) {
 	}
 }
 
-void SetupChannelBox::checkFail(const RPCError &error) {
+void SetupChannelBox::checkFail(const MTP::Error &error) {
 	_checkRequestId = 0;
 	QString err(error.type());
 	if (err == qstr("CHANNEL_PUBLIC_GROUP_NA")) {
@@ -1171,7 +1171,7 @@ void SetupChannelBox::showRevokePublicLinkBoxForEdit() {
 		Ui::LayerOption::KeepOther);
 }
 
-void SetupChannelBox::firstCheckFail(const RPCError &error) {
+void SetupChannelBox::firstCheckFail(const MTP::Error &error) {
 	_checkRequestId = 0;
 	const auto &type = error.type();
 	if (type == qstr("CHANNEL_PUBLIC_GROUP_NA")) {
@@ -1281,7 +1281,7 @@ void EditNameBox::save() {
 		MTPstring()
 	)).done([=](const MTPUser &result) {
 		saveSelfDone(result);
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		saveSelfFail(error);
 	}).send();
 }
@@ -1291,7 +1291,7 @@ void EditNameBox::saveSelfDone(const MTPUser &user) {
 	closeBox();
 }
 
-void EditNameBox::saveSelfFail(const RPCError &error) {
+void EditNameBox::saveSelfFail(const MTP::Error &error) {
 	auto err = error.type();
 	auto first = TextUtilities::SingleLine(_first->getLastText().trimmed());
 	auto last = TextUtilities::SingleLine(_last->getLastText().trimmed());

Telegram/SourceFiles/boxes/add_contact_box.h

@@ -179,11 +179,11 @@ private:
 	void save();
 
 	void updateDone(const MTPBool &result);
-	void updateFail(const RPCError &error);
+	void updateFail(const MTP::Error &error);
 
 	void checkDone(const MTPBool &result);
-	void checkFail(const RPCError &error);
-	void firstCheckFail(const RPCError &error);
+	void checkFail(const MTP::Error &error);
+	void firstCheckFail(const MTP::Error &error);
 
 	void updateMaxHeight();
 
@@ -229,7 +229,7 @@ private:
 	void submit();
 	void save();
 	void saveSelfDone(const MTPUser &user);
-	void saveSelfFail(const RPCError &error);
+	void saveSelfFail(const MTP::Error &error);
 
 	const not_null<UserData*> _user;
 	MTP::Sender _api;

Telegram/SourceFiles/boxes/auto_download_box.cpp

@@ -158,15 +158,15 @@ void AutoDownloadBox::setupContent() {
 	};
 
 	addButton(tr::lng_connection_save(), [=] {
-		auto &&values = ranges::view::concat(
+		auto &&values = ranges::views::concat(
 			*downloadValues,
 			*autoPlayValues);
-		auto allowMore = values | ranges::view::filter([&](Pair pair) {
+		auto allowMore = values | ranges::views::filter([&](Pair pair) {
 			const auto [type, enabled] = pair;
 			const auto value = enabled ? limitByType(type) : 0;
 			const auto old = settings->bytesLimit(_source, type);
 			return (old < value);
-		}) | ranges::view::transform([](Pair pair) {
+		}) | ranges::views::transform([](Pair pair) {
 			return pair.first;
 		});
 		const auto less = ranges::any_of(*autoPlayValues, [&](Pair pair) {
@@ -191,7 +191,7 @@ void AutoDownloadBox::setupContent() {
 		});
 
 		if (changed) {
-			for (const auto [type, enabled] : values) {
+			for (const auto &[type, enabled] : values) {
 				const auto value = enabled ? limitByType(type) : 0;
 				settings->setBytesLimit(_source, type, value);
 			}

Telegram/SourceFiles/boxes/background_box.cpp

@@ -248,9 +248,9 @@ void BackgroundBox::Inner::updatePapers() {
 	_over = _overDown = Selection();
 
 	_papers = _session->data().wallpapers(
-	) | ranges::view::filter([](const Data::WallPaper &paper) {
+	) | ranges::views::filter([](const Data::WallPaper &paper) {
 		return !paper.isPattern() || paper.backgroundColor().has_value();
-	}) | ranges::view::transform([](const Data::WallPaper &paper) {
+	}) | ranges::views::transform([](const Data::WallPaper &paper) {
 		return Paper{ paper };
 	}) | ranges::to_vector;
 	sortPapers();
@@ -268,7 +268,7 @@ void BackgroundBox::Inner::resizeToContentAndPreload() {
 			+ st::backgroundPadding));
 
 	const auto preload = kBackgroundsInRow * 3;
-	for (const auto &paper : _papers | ranges::view::take(preload)) {
+	for (const auto &paper : _papers | ranges::views::take(preload)) {
 		if (!paper.data.localThumbnail() && !paper.dataMedia) {
 			if (const auto document = paper.data.document()) {
 				paper.dataMedia = document->createMediaView();

Telegram/SourceFiles/boxes/background_preview_box.cpp

@@ -785,7 +785,7 @@ bool BackgroundPreviewBox::Start(
 		Ui::show(Box<BackgroundPreviewBox>(
 			controller,
 			result.withUrlParams(params)));
-	}), [](const RPCError &error) {
+	}), [](const MTP::Error &error) {
 		Ui::show(Box<InformBox>(tr::lng_background_bad_link(tr::now)));
 	});
 	return true;

Telegram/SourceFiles/boxes/boxes.style

@@ -111,7 +111,7 @@ confirmInviteUserName: FlatLabel(defaultFlatLabel) {
 confirmInviteUserNameTop: 227px;
 
 confirmPhoneAboutLabel: FlatLabel(defaultFlatLabel) {
-	minWidth: 282px;
+	minWidth: 272px;
 }
 confirmPhoneCodeField: InputField(defaultInputField) {
 }
@@ -158,27 +158,28 @@ contactsMarginBottom: 4px;
 membersMarginTop: 10px;
 membersMarginBottom: 10px;
 
+peerListBoxItem: PeerListItem(defaultPeerListItem) {
+	height: 56px;
+	photoSize: contactsPhotoSize;
+	photoPosition: point(16px, 7px);
+	namePosition: point(74px, 9px);
+	statusPosition: point(74px, 30px);
+	button: OutlineButton(defaultPeerListButton) {
+		textBg: contactsBg;
+		textBgOver: contactsBgOver;
+		ripple: defaultRippleAnimation;
+	}
+	statusFg: contactsStatusFg;
+	statusFgOver: contactsStatusFgOver;
+	statusFgActive: contactsStatusFgOnline;
+}
 peerListBox: PeerList(defaultPeerList) {
 	padding: margins(
 		0px,
 		membersMarginTop,
 		0px,
 		membersMarginBottom);
-	item: PeerListItem(defaultPeerListItem) {
-		height: 56px;
-		photoSize: contactsPhotoSize;
-		photoPosition: point(16px, 7px);
-		namePosition: point(74px, 9px);
-		statusPosition: point(74px, 30px);
-		button: OutlineButton(defaultPeerListButton) {
-			textBg: contactsBg;
-			textBgOver: contactsBgOver;
-			ripple: defaultRippleAnimation;
-		}
-		statusFg: contactsStatusFg;
-		statusFgOver: contactsStatusFgOver;
-		statusFgActive: contactsStatusFgOnline;
-	}
+	item: peerListBoxItem;
 }
 
 localStorageRowHeight: 50px;
@@ -214,17 +215,23 @@ localStorageLimitMargin: margins(22px, 5px, 20px, 10px);
 shareRowsTop: 12px;
 shareRowHeight: 108px;
 sharePhotoTop: 6px;
-sharePhotoCheckbox: RoundImageCheckbox(defaultPeerListCheckbox) {
-	imageRadius: 28px;
-	imageSmallRadius: 24px;
+shareBoxListItem: PeerListItem(defaultPeerListItem) {
+	nameStyle: TextStyle(defaultTextStyle) {
+		font: font(11px);
+		linkFont: font(11px);
+		linkFontOver: font(11px);
+	}
+	nameFg: windowFg;
+	nameFgChecked: windowActiveTextFg;
+	checkbox: RoundImageCheckbox(defaultPeerListCheckbox) {
+		imageRadius: 28px;
+		imageSmallRadius: 24px;
+	}
 }
-shareNameStyle: TextStyle(defaultTextStyle) {
-	font: font(11px);
-	linkFont: font(11px);
-	linkFontOver: font(11px);
+shareBoxList: PeerList(defaultPeerList) {
+	bg: boxBg;
+	item: shareBoxListItem;
 }
-shareNameFg: windowFg;
-shareNameActiveFg: windowActiveTextFg;
 shareNameTop: 6px;
 shareColumnSkip: 6px;
 shareActivateDuration: 150;

Telegram/SourceFiles/boxes/change_phone_box.cpp

@@ -78,7 +78,7 @@ protected:
 private:
 	void submit();
 	void sendPhoneDone(const MTPauth_SentCode &result, const QString &phoneNumber);
-	void sendPhoneFail(const RPCError &error, const QString &phoneNumber);
+	void sendPhoneFail(const MTP::Error &error, const QString &phoneNumber);
 	void showError(const QString &text);
 	void hideError() {
 		showError(QString());
@@ -114,7 +114,7 @@ private:
 	void submit();
 	void sendCall();
 	void updateCall();
-	void sendCodeFail(const RPCError &error);
+	void sendCodeFail(const MTP::Error &error);
 	void showError(const QString &text);
 	void hideError() {
 		showError(QString());
@@ -180,7 +180,7 @@ void ChangePhoneBox::EnterPhone::submit() {
 		MTP_codeSettings(MTP_flags(0))
 	)).done([=](const MTPauth_SentCode &result) {
 		sendPhoneDone(result, phoneNumber);
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		sendPhoneFail(error, phoneNumber);
 	}).handleFloodErrors().send();
 }
@@ -222,9 +222,9 @@ void ChangePhoneBox::EnterPhone::sendPhoneDone(
 		Ui::LayerOption::KeepOther);
 }
 
-void ChangePhoneBox::EnterPhone::sendPhoneFail(const RPCError &error, const QString &phoneNumber) {
+void ChangePhoneBox::EnterPhone::sendPhoneFail(const MTP::Error &error, const QString &phoneNumber) {
 	_requestId = 0;
-	if (MTP::isFloodError(error)) {
+	if (MTP::IsFloodError(error)) {
 		showError(tr::lng_flood_error(tr::now));
 	} else if (error.type() == qstr("PHONE_NUMBER_INVALID")) {
 		showError(tr::lng_bad_phone(tr::now));
@@ -320,7 +320,7 @@ void ChangePhoneBox::EnterCode::submit() {
 			Ui::hideLayer();
 		}
 		Ui::Toast::Show(tr::lng_change_phone_success(tr::now));
-	}).fail(crl::guard(this, [=](const RPCError &error) {
+	}).fail(crl::guard(this, [=](const MTP::Error &error) {
 		sendCodeFail(error);
 	})).handleFloodErrors().send();
 }
@@ -354,9 +354,9 @@ void ChangePhoneBox::EnterCode::showError(const QString &text) {
 	}
 }
 
-void ChangePhoneBox::EnterCode::sendCodeFail(const RPCError &error) {
+void ChangePhoneBox::EnterCode::sendCodeFail(const MTP::Error &error) {
 	_requestId = 0;
-	if (MTP::isFloodError(error)) {
+	if (MTP::IsFloodError(error)) {
 		showError(tr::lng_flood_error(tr::now));
 	} else if (error.type() == qstr("PHONE_CODE_EMPTY") || error.type() == qstr("PHONE_CODE_INVALID")) {
 		showError(tr::lng_bad_code(tr::now));

Telegram/SourceFiles/boxes/confirm_box.cpp

@@ -536,7 +536,7 @@ void PinMessageBox::pinMessage() {
 	)).done([=](const MTPUpdates &result) {
 		_peer->session().api().applyUpdates(result);
 		Ui::hideLayer();
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		Ui::hideLayer();
 	}).send();
 }
@@ -762,11 +762,11 @@ auto DeleteMessagesBox::revokeText(not_null<PeerData*> peer) const
 		return result;
 	}
 
-	const auto items = ranges::view::all(
+	const auto items = ranges::views::all(
 		_ids
-	) | ranges::view::transform([&](FullMsgId id) {
+	) | ranges::views::transform([&](FullMsgId id) {
 		return peer->owner().message(id);
-	}) | ranges::view::filter([](HistoryItem *item) {
+	}) | ranges::views::filter([](HistoryItem *item) {
 		return (item != nullptr);
 	}) | ranges::to_vector;
 
@@ -783,7 +783,7 @@ auto DeleteMessagesBox::revokeText(not_null<PeerData*> peer) const
 		return !item->canDeleteForEveryone(now);
 	};
 	const auto canRevokeAll = ranges::none_of(items, cannotRevoke);
-	auto outgoing = items | ranges::view::filter(&HistoryItem::out);
+	auto outgoing = items | ranges::views::filter(&HistoryItem::out);
 	const auto canRevokeOutgoingCount = canRevokeAll
 		? -1
 		: ranges::count_if(outgoing, canRevoke);

Telegram/SourceFiles/boxes/confirm_phone_box.cpp

@@ -249,7 +249,7 @@ void ConfirmPhoneBox::checkPhoneAndHash() {
 		MTP_codeSettings(MTP_flags(0))
 	)).done([=](const MTPauth_SentCode &result) {
 		sendCodeDone(result);
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		sendCodeFail(error);
 	}).handleFloodErrors().send();
 }
@@ -278,9 +278,9 @@ void ConfirmPhoneBox::sendCodeDone(const MTPauth_SentCode &result) {
 	});
 }
 
-void ConfirmPhoneBox::sendCodeFail(const RPCError &error) {
+void ConfirmPhoneBox::sendCodeFail(const MTP::Error &error) {
 	auto errorText = Lang::Hard::ServerError();
-	if (MTP::isFloodError(error)) {
+	if (MTP::IsFloodError(error)) {
 		errorText = tr::lng_flood_error(tr::now);
 	} else if (error.code() == 400) {
 		errorText = tr::lng_confirm_phone_link_invalid(tr::now);
@@ -348,7 +348,7 @@ void ConfirmPhoneBox::sendCode() {
 		MTP_string(code)
 	)).done([=](const MTPBool &result) {
 		confirmDone(result);
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		confirmFail(error);
 	}).handleFloodErrors().send();
 }
@@ -358,9 +358,9 @@ void ConfirmPhoneBox::confirmDone(const MTPBool &result) {
 	Ui::show(Box<InformBox>(tr::lng_confirm_phone_success(tr::now, lt_phone, App::formatPhone(_phone))));
 }
 
-void ConfirmPhoneBox::confirmFail(const RPCError &error) {
+void ConfirmPhoneBox::confirmFail(const MTP::Error &error) {
 	auto errorText = Lang::Hard::ServerError();
-	if (MTP::isFloodError(error)) {
+	if (MTP::IsFloodError(error)) {
 		errorText = tr::lng_flood_error(tr::now);
 	} else {
 		auto &errorType = error.type();

Telegram/SourceFiles/boxes/confirm_phone_box.h

@@ -121,12 +121,12 @@ private:
 	void checkPhoneAndHash();
 
 	void sendCodeDone(const MTPauth_SentCode &result);
-	void sendCodeFail(const RPCError &error);
+	void sendCodeFail(const MTP::Error &error);
 
 	void callDone(const MTPauth_SentCode &result);
 
 	void confirmDone(const MTPBool &result);
-	void confirmFail(const RPCError &error);
+	void confirmFail(const MTP::Error &error);
 
 	QString getPhone() const {
 		return _phone;

Telegram/SourceFiles/boxes/connection_box.cpp

@@ -896,7 +896,7 @@ void ProxyBox::setupTypes() {
 		{ Type::Socks5, "SOCKS5" },
 		{ Type::Mtproto, "MTPROTO" },
 	};
-	for (const auto [type, label] : types) {
+	for (const auto &[type, label] : types) {
 		_content->add(
 			object_ptr<Ui::Radioenum<Type>>(
 				_content,
@@ -1051,9 +1051,9 @@ void ProxyBox::addLabel(
 ProxiesBoxController::ProxiesBoxController(not_null<Main::Account*> account)
 : _account(account)
 , _saveTimer([] { Local::writeSettings(); }) {
-	_list = ranges::view::all(
+	_list = ranges::views::all(
 		Global::ProxiesList()
-	) | ranges::view::transform([&](const ProxyData &proxy) {
+	) | ranges::views::transform([&](const ProxyData &proxy) {
 		return Item{ ++_idCounter, proxy };
 	}) | ranges::to_vector;
 

Telegram/SourceFiles/boxes/create_poll_box.cpp

@@ -536,8 +536,8 @@ std::vector<PollAnswer> Options::toPollAnswers() const {
 	};
 	ranges::copy(
 		_list
-		| ranges::view::filter(&Option::isGood)
-		| ranges::view::transform(makeAnswer),
+		| ranges::views::filter(&Option::isGood)
+		| ranges::views::transform(makeAnswer),
 		ranges::back_inserter(result));
 	return result;
 }
@@ -593,7 +593,7 @@ void Options::removeEmptyTail() {
 		_list,
 		&Option::hasFocus);
 	const auto end = _list.end();
-	const auto reversed = ranges::view::reverse(_list);
+	const auto reversed = ranges::views::reverse(_list);
 	const auto emptyItem = ranges::find_if(
 		reversed,
 		ranges::not_fn(&Option::isEmpty)).base();

Telegram/SourceFiles/boxes/edit_caption_box.cpp

@@ -1045,13 +1045,13 @@ void EditCaptionBox::save() {
 	if (!_preparedList.files.empty()) {
 		auto action = Api::SendAction(item->history());
 		action.options = options;
+		action.replaceMediaOf = item->fullId().msg;
 
 		_controller->session().api().editMedia(
 			std::move(_preparedList),
 			(!_asFile && _photo) ? SendMediaType::Photo : SendMediaType::File,
 			_field->getTextWithAppliedMarkdown(),
-			action,
-			item->fullId().msg);
+			action);
 		closeBox();
 		return;
 	}
@@ -1061,7 +1061,7 @@ void EditCaptionBox::save() {
 		closeBox();
 	});
 
-	const auto fail = crl::guard(this, [=](const RPCError &error) {
+	const auto fail = crl::guard(this, [=](const MTP::Error &error) {
 		_saveRequestId = 0;
 		const auto &type = error.type();
 		if (ranges::contains(Api::kDefaultEditMessagesErrors, type)) {

Telegram/SourceFiles/boxes/edit_color_box.cpp

@@ -668,7 +668,7 @@ void EditColorBox::Field::changeValue(int delta) {
 		setText(QString::number(newValue));
 		setFocus();
 		selectAll();
-		emit changed();
+		changed();
 	}
 }
 

Telegram/SourceFiles/boxes/filters/edit_filter_box.cpp

@@ -333,9 +333,9 @@ void EditExceptions(
 		box->addButton(tr::lng_settings_save(), crl::guard(context, [=] {
 			const auto peers = box->collectSelectedRows();
 			const auto rules = data->current();
-			auto &&histories = ranges::view::all(
+			auto &&histories = ranges::views::all(
 				peers
-			) | ranges::view::transform([=](not_null<PeerData*> peer) {
+			) | ranges::views::transform([=](not_null<PeerData*> peer) {
 				return window->session().data().history(peer);
 			});
 			auto changed = base::flat_set<not_null<History*>>{

Telegram/SourceFiles/boxes/language_box.cpp

@@ -424,11 +424,11 @@ void Rows::remove(not_null<Row*> row) {
 
 void Rows::restore(not_null<Row*> row) {
 	row->removed = false;
-	Local::saveRecentLanguages(ranges::view::all(
+	Local::saveRecentLanguages(ranges::views::all(
 		_rows
-	) | ranges::view::filter([](const Row &row) {
+	) | ranges::views::filter([](const Row &row) {
 		return !row.removed;
-	}) | ranges::view::transform([](const Row &row) {
+	}) | ranges::views::transform([](const Row &row) {
 		return row.data;
 	}) | ranges::to_vector);
 }
@@ -464,7 +464,6 @@ void Rows::showMenu(int index) {
 			Fn<void()> callback) {
 		return _menu->addAction(text, std::move(callback));
 	};
-	const auto id = row->data.id;
 	if (canShare(row)) {
 		addAction(tr::lng_proxy_edit_share(tr::now), [=] { share(row); });
 	}

Telegram/SourceFiles/boxes/passcode_box.cpp

@@ -360,8 +360,8 @@ void PasscodeBox::closeReplacedBy() {
 	}
 }
 
-void PasscodeBox::setPasswordFail(const RPCError &error) {
-	if (MTP::isFloodError(error)) {
+void PasscodeBox::setPasswordFail(const MTP::Error &error) {
+	if (MTP::IsFloodError(error)) {
 		closeReplacedBy();
 		_setRequest = 0;
 
@@ -402,10 +402,10 @@ void PasscodeBox::setPasswordFail(const RPCError &error) {
 void PasscodeBox::setPasswordFail(
 		const QByteArray &newPasswordBytes,
 		const QString &email,
-		const RPCError &error) {
+		const MTP::Error &error) {
 	const auto prefix = qstr("EMAIL_UNCONFIRMED_");
 	if (error.type().startsWith(prefix)) {
-		const auto codeLength = error.type().mid(prefix.size()).toInt();
+		const auto codeLength = error.type().midRef(prefix.size()).toInt();
 
 		closeReplacedBy();
 		_setRequest = 0;
@@ -432,9 +432,9 @@ void PasscodeBox::validateEmail(
 		)).done([=](const MTPBool &result) {
 			*set = true;
 			setPasswordDone(newPasswordBytes);
-		}).fail([=](const RPCError &error) {
+		}).fail([=](const MTP::Error &error) {
 			_setRequest = 0;
-			if (MTP::isFloodError(error)) {
+			if (MTP::IsFloodError(error)) {
 				errors->fire(tr::lng_flood_error(tr::now));
 			} else if (error.type() == qstr("CODE_INVALID")) {
 				errors->fire(tr::lng_signin_wrong_code(tr::now));
@@ -461,7 +461,7 @@ void PasscodeBox::validateEmail(
 		)).done([=](const MTPBool &result) {
 			_setRequest = 0;
 			resent->fire(tr::lng_cloud_password_resent(tr::now));
-		}).fail([=](const RPCError &error) {
+		}).fail([=](const MTP::Error &error) {
 			_setRequest = 0;
 			errors->fire(Lang::Hard::ServerError());
 		}).send();
@@ -681,9 +681,9 @@ void PasscodeBox::serverError() {
 	closeBox();
 }
 
-bool PasscodeBox::handleCustomCheckError(const RPCError &error) {
+bool PasscodeBox::handleCustomCheckError(const MTP::Error &error) {
 	const auto &type = error.type();
-	if (MTP::isFloodError(error)
+	if (MTP::IsFloodError(error)
 		|| type == qstr("PASSWORD_HASH_INVALID")
 		|| type == qstr("SRP_PASSWORD_CHANGED")
 		|| type == qstr("SRP_ID_INVALID")) {
@@ -695,8 +695,6 @@ bool PasscodeBox::handleCustomCheckError(const RPCError &error) {
 
 void PasscodeBox::sendClearCloudPassword(
 		const Core::CloudPasswordResult &check) {
-	const auto newPasswordData = QByteArray();
-	const auto newPasswordHash = QByteArray();
 	const auto hint = QString();
 	const auto email = QString();
 	const auto flags = MTPDaccount_passwordInputSettings::Flag::f_new_algo
@@ -714,7 +712,7 @@ void PasscodeBox::sendClearCloudPassword(
 			MTPSecureSecretSettings())
 	)).done([=](const MTPBool &result) {
 		setPasswordDone({});
-	}).fail([=](const RPCError &error) mutable {
+	}).fail([=](const MTP::Error &error) mutable {
 		setPasswordFail({}, QString(), error);
 	}).handleFloodErrors().send();
 }
@@ -745,7 +743,7 @@ void PasscodeBox::setNewCloudPassword(const QString &newPassword) {
 			MTPSecureSecretSettings())
 	)).done([=](const MTPBool &result) {
 		setPasswordDone(newPasswordBytes);
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		setPasswordFail(newPasswordBytes, email, error);
 	}).handleFloodErrors().send();
 }
@@ -800,7 +798,7 @@ void PasscodeBox::changeCloudPassword(
 				sendChangeCloudPassword(check, newPassword, secureSecret);
 			});
 		}
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		setPasswordFail(error);
 	}).handleFloodErrors().send();
 }
@@ -842,7 +840,7 @@ void PasscodeBox::resetSecret(
 			const auto empty = QByteArray();
 			sendChangeCloudPassword(check, newPassword, empty);
 		});
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		_setRequest = 0;
 		if (error.type() == qstr("SRP_ID_INVALID")) {
 			handleSrpIdInvalid();
@@ -891,7 +889,7 @@ void PasscodeBox::sendChangeCloudPassword(
 				MTP_long(newSecureSecretId)))
 	)).done([=](const MTPBool &result) {
 		setPasswordDone(newPasswordBytes);
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		setPasswordFail(newPasswordBytes, QString(), error);
 	}).handleFloodErrors().send();
 }
@@ -939,7 +937,7 @@ void PasscodeBox::recoverByEmail() {
 		_api.request(MTPauth_RequestPasswordRecovery(
 		)).done([=](const MTPauth_PasswordRecovery &result) {
 			recoverStarted(result);
-		}).fail([=](const RPCError &error) {
+		}).fail([=](const MTP::Error &error) {
 			recoverStartFail(error);
 		}).send();
 	} else {
@@ -977,7 +975,7 @@ void PasscodeBox::recoverStarted(const MTPauth_PasswordRecovery &result) {
 	recover();
 }
 
-void PasscodeBox::recoverStartFail(const RPCError &error) {
+void PasscodeBox::recoverStartFail(const MTP::Error &error) {
 	_pattern = QString();
 	closeBox();
 }
@@ -1055,7 +1053,7 @@ void RecoverBox::submit() {
 			MTP_string(code)
 		)).done([=](const MTPauth_Authorization &result) {
 			codeSubmitDone(result);
-		}).fail([=](const RPCError &error) {
+		}).fail([=](const MTP::Error &error) {
 			codeSubmitFail(error);
 		}).handleFloodErrors().send();
 	});
@@ -1087,8 +1085,8 @@ void RecoverBox::codeSubmitDone(const MTPauth_Authorization &result) {
 		Ui::LayerOption::CloseOther);
 }
 
-void RecoverBox::codeSubmitFail(const RPCError &error) {
-	if (MTP::isFloodError(error)) {
+void RecoverBox::codeSubmitFail(const MTP::Error &error) {
+	if (MTP::IsFloodError(error)) {
 		_submitRequest = 0;
 		_error = tr::lng_flood_error(tr::now);
 		update();
@@ -1149,9 +1147,9 @@ RecoveryEmailValidation ConfirmRecoveryEmail(
 					Box<InformBox>(tr::lng_cloud_password_was_set(tr::now)),
 					Ui::LayerOption::CloseOther);
 			}
-		}).fail([=](const RPCError &error) {
+		}).fail([=](const MTP::Error &error) {
 			*requestId = 0;
-			if (MTP::isFloodError(error)) {
+			if (MTP::IsFloodError(error)) {
 				errors->fire(tr::lng_flood_error(tr::now));
 			} else if (error.type() == qstr("CODE_INVALID")) {
 				errors->fire(tr::lng_signin_wrong_code(tr::now));
@@ -1177,7 +1175,7 @@ RecoveryEmailValidation ConfirmRecoveryEmail(
 		)).done([=](const MTPBool &result) {
 			*requestId = 0;
 			resent->fire(tr::lng_cloud_password_resent(tr::now));
-		}).fail([=](const RPCError &error) {
+		}).fail([=](const MTP::Error &error) {
 			*requestId = 0;
 			errors->fire(Lang::Hard::ServerError());
 		}).send();
@@ -1196,7 +1194,7 @@ RecoveryEmailValidation ConfirmRecoveryEmail(
 }
 
 [[nodiscard]] object_ptr<Ui::GenericBox> PrePasswordErrorBox(
-		const RPCError &error,
+		const MTP::Error &error,
 		not_null<Main::Session*> session,
 		TextWithEntities &&about) {
 	const auto type = [&] {

Telegram/SourceFiles/boxes/passcode_box.h

@@ -55,7 +55,7 @@ public:
 	rpl::producer<> passwordReloadNeeded() const;
 	rpl::producer<> clearUnconfirmedPassword() const;
 
-	bool handleCustomCheckError(const RPCError &error);
+	bool handleCustomCheckError(const MTP::Error &error);
 
 protected:
 	void prepare() override;
@@ -81,18 +81,18 @@ private:
 	bool onlyCheckCurrent() const;
 
 	void setPasswordDone(const QByteArray &newPasswordBytes);
-	void setPasswordFail(const RPCError &error);
+	void setPasswordFail(const MTP::Error &error);
 	void setPasswordFail(
 		const QByteArray &newPasswordBytes,
 		const QString &email,
-		const RPCError &error);
+		const MTP::Error &error);
 	void validateEmail(
 		const QString &email,
 		int codeLength,
 		const QByteArray &newPasswordBytes);
 
 	void recoverStarted(const MTPauth_PasswordRecovery &result);
-	void recoverStartFail(const RPCError &error);
+	void recoverStartFail(const MTP::Error &error);
 
 	void recover();
 	void submitOnlyCheckCloudPassword(const QString &oldPassword);
@@ -189,7 +189,7 @@ private:
 	void submit();
 	void codeChanged();
 	void codeSubmitDone(const MTPauth_Authorization &result);
-	void codeSubmitFail(const RPCError &error);
+	void codeSubmitFail(const MTP::Error &error);
 
 	MTP::Sender _api;
 	mtpRequestId _submitRequest = 0;
@@ -216,6 +216,6 @@ struct RecoveryEmailValidation {
 	const QString &pattern);
 
 [[nodiscard]] object_ptr<Ui::GenericBox> PrePasswordErrorBox(
-	const RPCError &error,
+	const MTP::Error &error,
 	not_null<Main::Session*> session,
 	TextWithEntities &&about);

Telegram/SourceFiles/boxes/peer_list_box.cpp

@@ -705,6 +705,10 @@ void PeerListRow::setCheckedInternal(bool checked, anim::type animated) {
 	_checkbox->setChecked(checked, animated);
 }
 
+void PeerListRow::finishCheckedAnimation() {
+	_checkbox->setChecked(_checkbox->checked(), anim::type::instant);
+}
+
 PeerListContent::PeerListContent(
 	QWidget *parent,
 	not_null<PeerListController*> controller)

Telegram/SourceFiles/boxes/peer_list_box.h

@@ -169,6 +169,7 @@ public:
 		}
 		setCheckedInternal(checked, animated);
 	}
+	void finishCheckedAnimation();
 	void invalidatePixmapsCache();
 
 	template <typename UpdateCallback>

Telegram/SourceFiles/boxes/peer_list_controllers.cpp

@@ -54,7 +54,7 @@ void ShareBotGame(not_null<UserData*> bot, not_null<PeerData*> chat) {
 		)).done([=](const MTPUpdates &result) {
 			api->applyUpdates(result, randomId);
 			finish();
-		}).fail([=](const RPCError &error) {
+		}).fail([=](const MTP::Error &error) {
 			api->sendMessageFail(error, chat);
 			finish();
 		}).afterRequest(
@@ -195,7 +195,7 @@ void PeerListGlobalSearchController::searchOnServer() {
 		MTP_int(SearchPeopleLimit)
 	)).done([=](const MTPcontacts_Found &result, mtpRequestId requestId) {
 		searchDone(result, requestId);
-	}).fail([=](const RPCError &error, mtpRequestId requestId) {
+	}).fail([=](const MTP::Error &error, mtpRequestId requestId) {
 		if (_requestId == requestId) {
 			_requestId = 0;
 			delegate()->peerListSearchRefreshRows();

Telegram/SourceFiles/boxes/peers/add_participants_box.cpp

@@ -219,9 +219,9 @@ bool AddParticipantsBoxController::inviteSelectedUsers(
 	Expects(_peer != nullptr);
 
 	const auto rows = box->collectSelectedRows();
-	const auto users = ranges::view::all(
+	const auto users = ranges::views::all(
 		rows
-	) | ranges::view::transform([](not_null<PeerData*> peer) {
+	) | ranges::views::transform([](not_null<PeerData*> peer) {
 		Expects(peer->isUser());
 		Expects(!peer->isSelf());
 
@@ -485,7 +485,7 @@ void AddSpecialBoxController::loadMoreRows() {
 			setDescriptionText(tr::lng_blocked_list_not_found(tr::now));
 		}
 		delegate()->peerListRefreshRows();
-	}).fail([this](const RPCError &error) {
+	}).fail([this](const MTP::Error &error) {
 		_loadRequestId = 0;
 	}).send();
 }
@@ -520,7 +520,7 @@ bool AddSpecialBoxController::checkInfoLoaded(
 		channel->owner().processUsers(participant.vusers());
 		_additional.applyParticipant(participant.vparticipant());
 		callback();
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		_additional.setExternal(user);
 		callback();
 	}).send();
@@ -976,7 +976,7 @@ void AddSpecialBoxSearchController::requestParticipants() {
 			const MTPchannels_ChannelParticipants &result,
 			mtpRequestId requestId) {
 		searchParticipantsDone(requestId, result, perPage);
-	}).fail([=](const RPCError &error, mtpRequestId requestId) {
+	}).fail([=](const MTP::Error &error, mtpRequestId requestId) {
 		if (_requestId == requestId) {
 			_requestId = 0;
 			_participantsLoaded = true;
@@ -1059,7 +1059,7 @@ void AddSpecialBoxSearchController::requestGlobal() {
 		MTP_int(perPage)
 	)).done([=](const MTPcontacts_Found &result, mtpRequestId requestId) {
 		searchGlobalDone(requestId, result);
-	}).fail([=](const RPCError &error, mtpRequestId requestId) {
+	}).fail([=](const MTP::Error &error, mtpRequestId requestId) {
 		if (_requestId == requestId) {
 			_requestId = 0;
 			_globalLoaded = true;

Telegram/SourceFiles/boxes/peers/edit_contact_box.cpp

@@ -75,7 +75,7 @@ void SendRequest(
 				lt_user,
 				first));
 		}
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 	}).send();
 }
 

Telegram/SourceFiles/boxes/peers/edit_participant_box.cpp

@@ -444,7 +444,7 @@ void EditAdminBox::transferOwnership() {
 		channel,
 		MTP_inputUserEmpty(),
 		MTP_inputCheckPasswordEmpty()
-	)).fail([=](const RPCError &error) {
+	)).fail([=](const MTP::Error &error) {
 		_checkTransferRequestId = 0;
 		if (!handleTransferPasswordError(error)) {
 			getDelegate()->show(Box<ConfirmBox>(
@@ -461,7 +461,7 @@ void EditAdminBox::transferOwnership() {
 	}).send();
 }
 
-bool EditAdminBox::handleTransferPasswordError(const RPCError &error) {
+bool EditAdminBox::handleTransferPasswordError(const MTP::Error &error) {
 	const auto session = &user()->session();
 	auto about = tr::lng_rights_transfer_check_about(
 		tr::now,
@@ -533,7 +533,7 @@ void EditAdminBox::sendTransferRequestFrom(
 				lt_user,
 				user->shortName()));
 		Ui::hideLayer();
-	}).fail(crl::guard(this, [=](const RPCError &error) {
+	}).fail(crl::guard(this, [=](const MTP::Error &error) {
 		if (weak) {
 			_transferRequestId = 0;
 		}

Telegram/SourceFiles/boxes/peers/edit_participant_box.h

@@ -10,7 +10,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "boxes/abstract_box.h"
 #include "base/unique_qptr.h"
 
-class RPCError;
+namespace MTP {
+class Error;
+} // namespace MTP
 
 namespace Ui {
 class FlatLabel;
@@ -94,7 +96,7 @@ private:
 	not_null<Ui::InputField*> addRankInput();
 	void transferOwnership();
 	void transferOwnershipChecked();
-	bool handleTransferPasswordError(const RPCError &error);
+	bool handleTransferPasswordError(const MTP::Error &error);
 	void requestTransferPassword(not_null<ChannelData*> channel);
 	void sendTransferRequestFrom(
 		QPointer<PasscodeBox> box,

Telegram/SourceFiles/boxes/peers/edit_participants_box.cpp

@@ -58,7 +58,7 @@ void RemoveAdmin(
 		if (onDone) {
 			onDone();
 		}
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		if (onFail) {
 			onFail();
 		}
@@ -79,7 +79,7 @@ void AddChatParticipant(
 		if (onDone) {
 			onDone();
 		}
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		ShowAddParticipantsError(error.type(), chat, { 1, user });
 		if (onFail) {
 			onFail();
@@ -103,7 +103,7 @@ void SaveChatAdmin(
 		if (onDone) {
 			onDone();
 		}
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		const auto &type = error.type();
 		if (retryOnNotParticipant
 			&& isAdmin
@@ -136,7 +136,7 @@ void SaveChannelAdmin(
 		if (onDone) {
 			onDone();
 		}
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		ShowAddParticipantsError(error.type(), channel, { 1, user });
 		if (onFail) {
 			onFail();
@@ -161,7 +161,7 @@ void SaveChannelRestriction(
 		if (onDone) {
 			onDone();
 		}
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		if (onFail) {
 			onFail();
 		}
@@ -182,7 +182,7 @@ void SaveChatParticipantKick(
 		if (onDone) {
 			onDone();
 		}
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		if (onFail) {
 			onFail();
 		}
@@ -1196,7 +1196,7 @@ void ParticipantsBoxController::rebuildChatAdmins(
 		return;
 	}
 
-	auto list = ranges::view::all(chat->admins) | ranges::to_vector;
+	auto list = ranges::views::all(chat->admins) | ranges::to_vector;
 	if (const auto creator = chat->owner().userLoaded(chat->creator)) {
 		list.emplace_back(creator);
 	}
@@ -1336,7 +1336,7 @@ void ParticipantsBoxController::loadMoreRows() {
 			_onlineSorter->sort();
 		}
 		delegate()->peerListRefreshRows();
-	}).fail([this](const RPCError &error) {
+	}).fail([this](const MTP::Error &error) {
 		_loadRequestId = 0;
 	}).send();
 }
@@ -2071,7 +2071,7 @@ bool ParticipantsBoxSearchController::loadMoreRows() {
 			const MTPchannels_ChannelParticipants &result,
 			mtpRequestId requestId) {
 		searchDone(requestId, result, perPage);
-	}).fail([=](const RPCError &error, mtpRequestId requestId) {
+	}).fail([=](const MTP::Error &error, mtpRequestId requestId) {
 		if (_requestId == requestId) {
 			_requestId = 0;
 			_allLoaded = true;

Telegram/SourceFiles/boxes/peers/edit_peer_info_box.cpp

@@ -153,7 +153,7 @@ void SaveDefaultRestrictions(
 		api->clearModifyRequest(key);
 		api->applyUpdates(result);
 		done();
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		api->clearModifyRequest(key);
 		if (error.type() != qstr("CHAT_NOT_MODIFIED")) {
 			return;
@@ -186,7 +186,7 @@ void SaveSlowmodeSeconds(
 		api->applyUpdates(result);
 		channel->setSlowmodeSeconds(seconds);
 		done();
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		api->clearModifyRequest(key);
 		if (error.type() != qstr("CHAT_NOT_MODIFIED")) {
 			return;
@@ -235,7 +235,7 @@ void ShowEditPermissions(
 		const auto api = &peer->session().api();
 		api->migrateChat(chat, [=](not_null<ChannelData*> channel) {
 			save(channel, result);
-		}, [=](const RPCError &error) {
+		}, [=](const MTP::Error &error) {
 			*saving = false;
 		});
 	}, box->lifetime());
@@ -278,7 +278,7 @@ void ShowEditInviteLinks(
 		const auto api = &peer->session().api();
 		api->migrateChat(chat, [=](not_null<ChannelData*> channel) {
 			save(channel, result);
-		}, [=](const RPCError &error) {
+		}, [=](const MTP::Error &error) {
 			*saving = false;
 		});
 	}, box->lifetime());
@@ -716,7 +716,7 @@ void Controller::showEditLinkedChatBox() {
 				std::move(chats),
 				callback),
 			Ui::LayerOption::KeepOther);
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		_linkedChatsRequestId = 0;
 	}).send();
 }
@@ -1290,7 +1290,7 @@ void Controller::saveUsername() {
 			TextUtilities::SingleLine(channel->name),
 			*_savingData.username);
 		continueSave();
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		const auto &type = error.type();
 		if (type == qstr("USERNAME_NOT_MODIFIED")) {
 			channel->setName(
@@ -1343,7 +1343,7 @@ void Controller::saveLinkedChat() {
 	)).done([=](const MTPBool &result) {
 		channel->setLinkedChat(*_savingData.linkedChat);
 		continueSave();
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		const auto &type = error.type();
 		cancelSave();
 	}).send();
@@ -1358,7 +1358,7 @@ void Controller::saveTitle() {
 		_peer->session().api().applyUpdates(result);
 		continueSave();
 	};
-	const auto onFail = [=](const RPCError &error) {
+	const auto onFail = [=](const MTP::Error &error) {
 		const auto &type = error.type();
 		if (type == qstr("CHAT_NOT_MODIFIED")
 			|| type == qstr("CHAT_TITLE_NOT_MODIFIED")) {
@@ -1411,7 +1411,7 @@ void Controller::saveDescription() {
 		MTP_string(*_savingData.description)
 	)).done([=](const MTPBool &result) {
 		successCallback();
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		const auto &type = error.type();
 		if (type == qstr("CHAT_ABOUT_NOT_MODIFIED")) {
 			successCallback();
@@ -1469,7 +1469,7 @@ void Controller::togglePreHistoryHidden(
 	)).done([=](const MTPUpdates &result) {
 		channel->session().api().applyUpdates(result);
 		apply();
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		if (error.type() == qstr("CHAT_NOT_MODIFIED")) {
 			apply();
 		} else {
@@ -1491,7 +1491,7 @@ void Controller::saveSignatures() {
 	)).done([=](const MTPUpdates &result) {
 		channel->session().api().applyUpdates(result);
 		continueSave();
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		if (error.type() == qstr("CHAT_NOT_MODIFIED")) {
 			continueSave();
 		} else {
@@ -1546,7 +1546,7 @@ void Controller::deleteChannel() {
 		channel->inputChannel
 	)).done([=](const MTPUpdates &result) {
 		session->api().applyUpdates(result);
-	//}).fail([=](const RPCError &error) {
+	//}).fail([=](const MTP::Error &error) {
 	//	if (error.type() == qstr("CHANNEL_TOO_LARGE")) {
 	//		Ui::show(Box<InformBox>(tr::lng_cant_delete_channel(tr::now)));
 	//	}

Telegram/SourceFiles/boxes/peers/edit_peer_invite_link.cpp

@@ -118,7 +118,7 @@ private:
 	return updated.link.isEmpty() || (!revoked && updated.revoked);
 }
 
-QImage QrExact(const Qr::Data &data, int pixel) {
+QImage QrExact(const Qr::Data &data, int pixel, QColor color) {
 	const auto image = [](int size) {
 		auto result = QImage(
 			size,
@@ -141,7 +141,7 @@ QImage QrExact(const Qr::Data &data, int pixel) {
 		return result;
 	};
 	return Qr::ReplaceCenter(
-		Qr::Generate(data, pixel, st::windowFg->c),
+		Qr::Generate(data, pixel, color),
 		image(Qr::ReplaceSize(data, pixel)));
 }
 
@@ -151,7 +151,7 @@ QImage Qr(const Qr::Data &data, int pixel, int max = 0) {
 	if (max > 0 && data.size * pixel > max) {
 		pixel = std::max(max / data.size, 1);
 	}
-	return QrExact(data, pixel * style::DevicePixelRatio());
+	return QrExact(data, pixel * style::DevicePixelRatio(), st::windowFg->c);
 }
 
 QImage Qr(const QString &text, int pixel, int max) {
@@ -161,7 +161,7 @@ QImage Qr(const QString &text, int pixel, int max) {
 QImage QrForShare(const QString &text) {
 	const auto data = Qr::Encode(text);
 	const auto size = (kShareQrSize - 2 * kShareQrPadding);
-	const auto image = QrExact(data, size / data.size);
+	const auto image = QrExact(data, size / data.size, Qt::black);
 	auto result = QImage(
 		kShareQrPadding * 2 + image.width(),
 		kShareQrPadding * 2 + image.height(),
@@ -260,9 +260,9 @@ void Controller::addHeaderBlock(not_null<Ui::VerticalLayout*> container) {
 	const auto editLink = crl::guard(weak, [=] {
 		EditLink(_peer, _data.current());
 	});
-	const auto deleteLink = [=] {
+	const auto deleteLink = crl::guard(weak, [=] {
 		DeleteLink(_peer, admin, link);
-	};
+	});
 
 	const auto createMenu = [=] {
 		auto result = base::make_unique_q<Ui::PopupMenu>(container);
@@ -525,7 +525,7 @@ void Controller::loadMoreRows() {
 		auto slice = Api::ParseJoinedByLinkSlice(_peer, result);
 		_allLoaded = slice.users.empty();
 		appendSlice(slice);
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		_requestId = 0;
 		_allLoaded = true;
 	}).send();
@@ -881,6 +881,8 @@ void ShareInviteLinkBox(not_null<PeerData*> peer, const QString &link) {
 			for (auto &tag : comment.tags) {
 				tag.offset += add;
 			}
+		} else {
+			comment.text = link;
 		}
 		const auto owner = &peer->owner();
 		auto &api = peer->session().api();
@@ -903,11 +905,12 @@ void ShareInviteLinkBox(not_null<PeerData*> peer, const QString &link) {
 		return peer->canWrite();
 	};
 	*box = Ui::show(
-		Box<ShareBox>(
-			App::wnd()->sessionController(),
-			std::move(copyCallback),
-			std::move(submitCallback),
-			std::move(filterCallback)),
+		Box<ShareBox>(ShareBox::Descriptor{
+			.session = &peer->session(),
+			.copyCallback = std::move(copyCallback),
+			.submitCallback = std::move(submitCallback),
+			.filterCallback = [](auto peer) { return peer->canWrite(); },
+			.navigation = App::wnd()->sessionController() }),
 		Ui::LayerOption::KeepOther);
 }
 

Telegram/SourceFiles/boxes/peers/edit_peer_invite_links.cpp

@@ -166,7 +166,7 @@ private:
 			link.usageLimit)
 		: tr::lng_group_invite_no_joined(tr::now);
 	const auto add = [&](const QString &text) {
-		result += QString::fromUtf8(" \xE2\xB8\xB1 ") + text;
+		result += QString::fromUtf8(" \xE2\x80\xA2 ") + text;
 	};
 	if (revoked) {
 		return result;
@@ -189,8 +189,7 @@ private:
 				left / 86400));
 		} else {
 			const auto time = base::unixtime::parse(link.expireDate).time();
-			add(time.toString(QLocale::system().dateTimeFormat(
-				QLocale::LongFormat)));
+			add(QLocale::system().toString(time, QLocale::LongFormat));
 		}
 	}
 	return result;

Telegram/SourceFiles/boxes/peers/edit_peer_permissions_box.cpp

@@ -327,7 +327,7 @@ Fn<void()> AboutGigagroupCallback(not_null<ChannelData*> channel) {
 			channel->session().api().applyUpdates(result);
 			Ui::hideSettingsAndLayer();
 			Ui::Toast::Show(tr::lng_gigagroup_done(tr::now));
-		}).fail([=](const RPCError &error) {
+		}).fail([=](const MTP::Error &error) {
 			*converting = false;
 		}).send();
 	};

Telegram/SourceFiles/boxes/peers/edit_peer_type_box.cpp

@@ -452,7 +452,7 @@ void Controller::checkUsernameAvailability() {
 		} else {
 			showUsernameGood();
 		}
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		_checkUsernameRequestId = 0;
 		const auto &type = error.type();
 		_usernameState = UsernameState::Normal;

Telegram/SourceFiles/boxes/rate_call_box.cpp

@@ -131,7 +131,7 @@ void RateCallBox::send() {
 	)).done([=](const MTPUpdates &updates) {
 		_session->api().applyUpdates(updates);
 		closeBox();
-	}).fail([=](const RPCError &error) { closeBox(); }).send();
+	}).fail([=](const MTP::Error &error) { closeBox(); }).send();
 }
 
 void RateCallBox::updateMaxHeight() {

Telegram/SourceFiles/boxes/send_files_box.cpp

@@ -920,7 +920,7 @@ void SendFilesBox::updateControlsGeometry() {
 		_groupFiles.data(),
 		_sendImagesAsPhotos.data(),
 	};
-	for (const auto pointer : ranges::view::reverse(pointers)) {
+	for (const auto pointer : ranges::views::reverse(pointers)) {
 		if (pointer && !pointer->isHidden()) {
 			pointer->moveToLeft(
 				st::boxPhotoPadding.left(),

Telegram/SourceFiles/boxes/sessions_box.cpp

@@ -275,7 +275,7 @@ void SessionsContent::terminateOne(uint64 hash) {
 			removeByHash(_data.list);
 			_inner->showData(_data);
 		});
-		auto fail = crl::guard(weak, [=](const RPCError &error) {
+		auto fail = crl::guard(weak, [=](const MTP::Error &error) {
 			_inner->terminatingOne(hash, false);
 		});
 		_authorizations->requestTerminate(
@@ -296,7 +296,7 @@ void SessionsContent::terminateAll() {
 		});
 		_authorizations->requestTerminate(
 			[=](const MTPBool &result) { reset(); },
-			[=](const RPCError &result) { reset(); });
+			[=](const MTP::Error &result) { reset(); });
 		_loading = true;
 	};
 	terminate(std::move(callback), tr::lng_settings_reset_sure(tr::now));

Telegram/SourceFiles/boxes/share_box.cpp

@@ -44,10 +44,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 class ShareBox::Inner final : public Ui::RpWidget, private base::Subscriber {
 public:
-	Inner(
-		QWidget *parent,
-		not_null<Window::SessionNavigation*> navigation,
-		ShareBox::FilterCallback &&filterCallback);
+	Inner(QWidget *parent, const Descriptor &descriptor);
 
 	void setPeerSelectedChangedCallback(
 		Fn<void(PeerData *peer, bool selected)> callback);
@@ -84,7 +81,10 @@ protected:
 
 private:
 	struct Chat {
-		Chat(PeerData *peer, Fn<void()> updateCallback);
+		Chat(
+			PeerData *peer,
+			const style::PeerListItem &st,
+			Fn<void()> updateCallback);
 
 		PeerData *peer;
 		Ui::RoundImageCheckbox checkbox;
@@ -121,7 +121,8 @@ private:
 
 	void refresh();
 
-	const not_null<Window::SessionNavigation*> _navigation;
+	const Descriptor &_descriptor;
+	const style::PeerList &_st;
 
 	float64 _columnSkip = 0.;
 	float64 _rowWidthReal = 0.;
@@ -133,7 +134,6 @@ private:
 	int _active = -1;
 	int _upon = -1;
 
-	ShareBox::FilterCallback _filterCallback;
 	std::unique_ptr<Dialogs::IndexedList> _chatsIndexed;
 	QString _filter;
 	std::vector<not_null<Dialogs::Row*>> _filtered;
@@ -153,30 +153,35 @@ private:
 
 };
 
-ShareBox::ShareBox(
-	QWidget*,
-	not_null<Window::SessionNavigation*> navigation,
-	CopyCallback &&copyCallback,
-	SubmitCallback &&submitCallback,
-	FilterCallback &&filterCallback)
-: _navigation(navigation)
-, _api(&_navigation->session().mtp())
-, _copyCallback(std::move(copyCallback))
-, _submitCallback(std::move(submitCallback))
-, _filterCallback(std::move(filterCallback))
+ShareBox::ShareBox(QWidget*, Descriptor &&descriptor)
+: _descriptor(std::move(descriptor))
+, _api(&_descriptor.session->mtp())
 , _select(
 	this,
-	st::defaultMultiSelect,
+	(_descriptor.stMultiSelect
+		? *_descriptor.stMultiSelect
+		: st::defaultMultiSelect),
 	tr::lng_participant_filter())
 , _comment(
 	this,
 	object_ptr<Ui::InputField>(
 		this,
-		st::shareComment,
+		(_descriptor.stComment
+			? *_descriptor.stComment
+			: st::shareComment),
 		Ui::InputField::Mode::MultiLine,
 		tr::lng_photos_comment()),
 	st::shareCommentPadding)
+, _bottomWidget(std::move(_descriptor.bottomWidget))
+, _copyLinkText(_descriptor.copyLinkText
+	? std::move(_descriptor.copyLinkText)
+	: tr::lng_share_copy_link())
 , _searchTimer([=] { searchByUsername(); }) {
+	if (_bottomWidget) {
+		_bottomWidget->setParent(this);
+		_bottomWidget->resizeToWidth(st::boxWideWidth);
+		_bottomWidget->show();
+	}
 }
 
 void ShareBox::prepareCommentField() {
@@ -187,9 +192,14 @@ void ShareBox::prepareCommentField() {
 	rpl::combine(
 		heightValue(),
 		_comment->heightValue(),
-		_1 - _2
-	) | rpl::start_with_next([=](int top) {
-		_comment->moveToLeft(0, top);
+		(_bottomWidget
+			? _bottomWidget->heightValue()
+			: (rpl::single(0) | rpl::type_erased()))
+	) | rpl::start_with_next([=](int height, int comment, int bottom) {
+		_comment->moveToLeft(0, height - bottom - comment);
+		if (_bottomWidget) {
+			_bottomWidget->moveToLeft(0, height - bottom);
+		}
 	}, _comment->lifetime());
 
 	const auto field = _comment->entity();
@@ -202,12 +212,25 @@ void ShareBox::prepareCommentField() {
 	field->setInstantReplacesEnabled(
 		Core::App().settings().replaceEmojiValue());
 	field->setMarkdownReplacesEnabled(rpl::single(true));
-	field->setEditLinkCallback(
-		DefaultEditLinkCallback(_navigation->parentController(), field));
+	if (_descriptor.initEditLink) {
+		_descriptor.initEditLink(field);
+	} else if (_descriptor.navigation) {
+		field->setEditLinkCallback(
+			DefaultEditLinkCallback(
+				_descriptor.navigation->parentController(),
+				field));
+	}
 	field->setSubmitSettings(Core::App().settings().sendSubmitWay());
 
-	InitSpellchecker(_navigation->parentController(), field);
+	if (_descriptor.initSpellchecker) {
+		_descriptor.initSpellchecker(field);
+	} else if (_descriptor.navigation) {
+		InitSpellchecker(_descriptor.navigation->parentController(), field);
+	}
 	Ui::SendPendingMoveResizeEvents(_comment);
+	if (_bottomWidget) {
+		Ui::SendPendingMoveResizeEvents(_bottomWidget);
+	}
 }
 
 void ShareBox::prepare() {
@@ -219,10 +242,7 @@ void ShareBox::prepare() {
 	setTitle(tr::lng_share_title());
 
 	_inner = setInnerWidget(
-		object_ptr<Inner>(
-			this,
-			_navigation,
-			std::move(_filterCallback)),
+		object_ptr<Inner>(this, _descriptor),
 		getTopScrollSkip(),
 		getBottomScrollSkip());
 
@@ -234,7 +254,7 @@ void ShareBox::prepare() {
 		applyFilterUpdate(query);
 	});
 	_select->setItemRemovedCallback([=](uint64 itemId) {
-		if (const auto peer = _navigation->session().data().peerLoaded(itemId)) {
+		if (const auto peer = _descriptor.session->data().peerLoaded(itemId)) {
 			_inner->peerUnselected(peer);
 			selectedChanged();
 			update();
@@ -249,7 +269,11 @@ void ShareBox::prepare() {
 			_inner->selectActive();
 		}
 	});
-	_comment->heightValue(
+	rpl::combine(
+		_comment->heightValue(),
+		(_bottomWidget
+			? _bottomWidget->heightValue()
+			: rpl::single(0) | rpl::type_erased())
 	) | rpl::start_with_next([=] {
 		updateScrollSkips();
 	}, _comment->lifetime());
@@ -271,7 +295,7 @@ void ShareBox::prepare() {
 	Ui::Emoji::SuggestionsController::Init(
 		getDelegate()->outerContainer(),
 		_comment->entity(),
-		&_navigation->session());
+		_descriptor.session);
 
 	_select->raise();
 }
@@ -281,7 +305,8 @@ int ShareBox::getTopScrollSkip() const {
 }
 
 int ShareBox::getBottomScrollSkip() const {
-	return _comment->isHidden() ? 0 : _comment->height();
+	return (_comment->isHidden() ? 0 : _comment->height())
+		+ (_bottomWidget ? _bottomWidget->height() : 0);
 }
 
 int ShareBox::contentHeight() const {
@@ -318,7 +343,7 @@ bool ShareBox::searchByUsername(bool searchCache) {
 				MTP_int(SearchPeopleLimit)
 			)).done([=](const MTPcontacts_Found &result, mtpRequestId requestId) {
 				peopleDone(result, requestId);
-			}).fail([=](const RPCError &error, mtpRequestId requestId) {
+			}).fail([=](const MTP::Error &error, mtpRequestId requestId) {
 				peopleFail(error, requestId);
 			}).send();
 			_peopleQueries.insert(_peopleRequest, _peopleQuery);
@@ -351,8 +376,8 @@ void ShareBox::peopleDone(
 		switch (result.type()) {
 		case mtpc_contacts_found: {
 			auto &found = result.c_contacts_found();
-			_navigation->session().data().processUsers(found.vusers());
-			_navigation->session().data().processChats(found.vchats());
+			_descriptor.session->data().processUsers(found.vusers());
+			_descriptor.session->data().processChats(found.vchats());
 			_inner->peopleReceived(
 				query,
 				found.vmy_results().v,
@@ -364,7 +389,7 @@ void ShareBox::peopleDone(
 	}
 }
 
-void ShareBox::peopleFail(const RPCError &error, mtpRequestId requestId) {
+void ShareBox::peopleFail(const MTP::Error &error, mtpRequestId requestId) {
 	if (_peopleRequest == requestId) {
 		_peopleRequest = 0;
 		_peopleFull = true;
@@ -429,8 +454,8 @@ void ShareBox::createButtons() {
 			[=] { return sendMenuType(); },
 			[=] { submitSilent(); },
 			[=] { submitScheduled(); });
-	} else if (_copyCallback) {
-		addButton(tr::lng_share_copy_link(), [=] { copyLink(); });
+	} else if (_descriptor.copyCallback) {
+		addButton(_copyLinkText.value(), [=] { copyLink(); });
 	}
 	addButton(tr::lng_cancel(), [=] { closeBox(); });
 }
@@ -463,8 +488,8 @@ void ShareBox::innerSelectedChanged(PeerData *peer, bool checked) {
 }
 
 void ShareBox::submit(Api::SendOptions options) {
-	if (_submitCallback) {
-		_submitCallback(
+	if (const auto onstack = _descriptor.submitCallback) {
+		onstack(
 			_inner->selected(),
 			_comment->entity()->getTextWithAppliedMarkdown(),
 			options);
@@ -485,8 +510,8 @@ void ShareBox::submitScheduled() {
 }
 
 void ShareBox::copyLink() {
-	if (_copyCallback) {
-		_copyCallback();
+	if (const auto onstack = _descriptor.copyCallback) {
+		onstack();
 	}
 }
 
@@ -520,13 +545,10 @@ void ShareBox::scrollAnimationCallback() {
 	//scrollArea()->scrollToY(scrollTop);
 }
 
-ShareBox::Inner::Inner(
-	QWidget *parent,
-	not_null<Window::SessionNavigation*> navigation,
-	ShareBox::FilterCallback &&filterCallback)
+ShareBox::Inner::Inner(QWidget *parent, const Descriptor &descriptor)
 : RpWidget(parent)
-, _navigation(navigation)
-, _filterCallback(std::move(filterCallback))
+, _descriptor(descriptor)
+, _st(_descriptor.st ? *_descriptor.st : st::shareBoxList)
 , _chatsIndexed(
 	std::make_unique<Dialogs::IndexedList>(
 		Dialogs::SortMode::Add)) {
@@ -534,44 +556,44 @@ ShareBox::Inner::Inner(
 	_rowHeight = st::shareRowHeight;
 	setAttribute(Qt::WA_OpaquePaintEvent);
 
-	const auto self = _navigation->session().user();
-	if (_filterCallback(self)) {
+	const auto self = _descriptor.session->user();
+	if (_descriptor.filterCallback(self)) {
 		_chatsIndexed->addToEnd(self->owner().history(self));
 	}
 	const auto addList = [&](not_null<Dialogs::IndexedList*> list) {
 		for (const auto row : list->all()) {
 			if (const auto history = row->history()) {
 				if (!history->peer->isSelf()
-					&& _filterCallback(history->peer)) {
+					&& _descriptor.filterCallback(history->peer)) {
 					_chatsIndexed->addToEnd(history);
 				}
 			}
 		}
 	};
-	addList(_navigation->session().data().chatsList()->indexed());
+	addList(_descriptor.session->data().chatsList()->indexed());
 	const auto id = Data::Folder::kId;
-	if (const auto folder = _navigation->session().data().folderLoaded(id)) {
+	if (const auto folder = _descriptor.session->data().folderLoaded(id)) {
 		addList(folder->chatsList()->indexed());
 	}
-	addList(_navigation->session().data().contactsNoChatsList());
+	addList(_descriptor.session->data().contactsNoChatsList());
 
 	_filter = qsl("a");
 	updateFilter();
 
-	_navigation->session().changes().peerUpdates(
+	_descriptor.session->changes().peerUpdates(
 		Data::PeerUpdate::Flag::Photo
 	) | rpl::start_with_next([=](const Data::PeerUpdate &update) {
 		updateChat(update.peer);
 	}, lifetime());
 
-	_navigation->session().changes().realtimeNameUpdates(
+	_descriptor.session->changes().realtimeNameUpdates(
 	) | rpl::start_with_next([=](const Data::NameUpdate &update) {
 		_chatsIndexed->peerNameChanged(
 			update.peer,
 			update.oldFirstLetters);
 	}, lifetime());
 
-	_navigation->session().downloaderTaskFinished(
+	_descriptor.session->downloaderTaskFinished(
 	) | rpl::start_with_next([=] {
 		update();
 	}, lifetime());
@@ -640,7 +662,7 @@ void ShareBox::Inner::updateChatName(
 		: peer->isRepliesChat()
 		? tr::lng_replies_messages(tr::now)
 		: peer->name;
-	chat->name.setText(st::shareNameStyle, text, Ui::NameTextOptions());
+	chat->name.setText(_st.item.nameStyle, text, Ui::NameTextOptions());
 }
 
 void ShareBox::Inner::repaintChatAtIndex(int index) {
@@ -763,7 +785,7 @@ auto ShareBox::Inner::getChat(not_null<Dialogs::Row*> row)
 	}
 	const auto [i, ok] = _dataMap.emplace(
 		peer,
-		std::make_unique<Chat>(peer, [=] { repaintChat(peer); }));
+		std::make_unique<Chat>(peer, _st.item, [=] { repaintChat(peer); }));
 	updateChatName(i->second.get(), peer);
 	row->attached = i->second.get();
 	return i->second.get();
@@ -794,23 +816,26 @@ void ShareBox::Inner::paintChat(
 	auto y = _rowsTop + (index / _columnCount) * _rowHeight;
 
 	auto outerWidth = width();
-	auto photoLeft = (_rowWidth - (st::sharePhotoCheckbox.imageRadius * 2)) / 2;
+	auto photoLeft = (_rowWidth - (_st.item.checkbox.imageRadius * 2)) / 2;
 	auto photoTop = st::sharePhotoTop;
 	chat->checkbox.paint(p, x + photoLeft, y + photoTop, outerWidth);
 
 	auto nameActive = chat->nameActive.value((index == _active) ? 1. : 0.);
-	p.setPen(anim::pen(st::shareNameFg, st::shareNameActiveFg, nameActive));
+	p.setPen(anim::pen(_st.item.nameFg, _st.item.nameFgChecked, nameActive));
 
 	auto nameWidth = (_rowWidth - st::shareColumnSkip);
 	auto nameLeft = st::shareColumnSkip / 2;
-	auto nameTop = photoTop + st::sharePhotoCheckbox.imageRadius * 2 + st::shareNameTop;
+	auto nameTop = photoTop + _st.item.checkbox.imageRadius * 2 + st::shareNameTop;
 	chat->name.drawLeftElided(p, x + nameLeft, y + nameTop, nameWidth, outerWidth, 2, style::al_top, 0, -1, 0, true);
 }
 
-ShareBox::Inner::Chat::Chat(PeerData *peer, Fn<void()> updateCallback)
+ShareBox::Inner::Chat::Chat(
+	PeerData *peer,
+	const style::PeerListItem &st,
+	Fn<void()> updateCallback)
 : peer(peer)
-, checkbox(st::sharePhotoCheckbox, updateCallback, PaintUserpicCallback(peer, true))
-, name(st::sharePhotoCheckbox.imageRadius * 2) {
+, checkbox(st.checkbox, updateCallback, PaintUserpicCallback(peer, true))
+, name(st.checkbox.imageRadius * 2) {
 }
 
 void ShareBox::Inner::paintEvent(QPaintEvent *e) {
@@ -818,7 +843,7 @@ void ShareBox::Inner::paintEvent(QPaintEvent *e) {
 
 	auto r = e->rect();
 	p.setClipRect(r);
-	p.fillRect(r, st::boxBg);
+	p.fillRect(r, _st.bg);
 	auto yFrom = r.y(), yTo = r.y() + r.height();
 	auto rowFrom = yFrom / _rowHeight;
 	auto rowTo = (yTo + _rowHeight - 1) / _rowHeight;
@@ -836,7 +861,7 @@ void ShareBox::Inner::paintEvent(QPaintEvent *e) {
 			}
 		} else {
 			p.setFont(st::noContactsFont);
-			p.setPen(st::noContactsColor);
+			p.setPen(_st.about.textFg);
 			p.drawText(
 				rect().marginsRemoved(st::boxPadding),
 				tr::lng_bot_no_chats(tr::now),
@@ -847,7 +872,7 @@ void ShareBox::Inner::paintEvent(QPaintEvent *e) {
 			&& _byUsernameFiltered.empty()
 			&& !_searching) {
 			p.setFont(st::noContactsFont);
-			p.setPen(st::noContactsColor);
+			p.setPen(_st.about.textFg);
 			p.drawText(
 				rect().marginsRemoved(st::boxPadding),
 				tr::lng_bot_chats_not_found(tr::now),
@@ -903,7 +928,7 @@ void ShareBox::Inner::updateUpon(const QPoint &pos) {
 	auto left = _rowsLeft + qFloor(column * _rowWidthReal) + st::shareColumnSkip / 2;
 	auto top = _rowsTop + row * _rowHeight + st::sharePhotoTop;
 	auto xupon = (x >= left) && (x < left + (_rowWidth - st::shareColumnSkip));
-	auto yupon = (y >= top) && (y < top + st::sharePhotoCheckbox.imageRadius * 2 + st::shareNameTop + st::shareNameStyle.font->height * 2);
+	auto yupon = (y >= top) && (y < top + _st.item.checkbox.imageRadius * 2 + st::shareNameTop + _st.item.nameStyle.font->height * 2);
 	auto upon = (xupon && yupon) ? (row * _columnCount + column) : -1;
 	if (upon >= displayedChatsCount()) {
 		upon = -1;
@@ -923,8 +948,8 @@ void ShareBox::Inner::selectActive() {
 }
 
 void ShareBox::Inner::resizeEvent(QResizeEvent *e) {
-	_columnSkip = (width() - _columnCount * st::sharePhotoCheckbox.imageRadius * 2) / float64(_columnCount + 1);
-	_rowWidthReal = st::sharePhotoCheckbox.imageRadius * 2 + _columnSkip;
+	_columnSkip = (width() - _columnCount * _st.item.checkbox.imageRadius * 2) / float64(_columnCount + 1);
+	_rowWidthReal = _st.item.checkbox.imageRadius * 2 + _columnSkip;
 	_rowsLeft = qFloor(_columnSkip / 2);
 	_rowWidth = qFloor(_rowWidthReal);
 	update();
@@ -1030,9 +1055,10 @@ void ShareBox::Inner::peopleReceived(
 	d_byUsernameFiltered.reserve(already + my.size() + people.size());
 	const auto feedList = [&](const QVector<MTPPeer> &list) {
 		for (const auto &data : list) {
-			if (const auto peer = _navigation->session().data().peerLoaded(peerFromMTP(data))) {
-				const auto history = _navigation->session().data().historyLoaded(peer);
-				if (!_filterCallback(peer)) {
+			if (const auto peer = _descriptor.session->data().peerLoaded(
+				peerFromMTP(data))) {
+				const auto history = _descriptor.session->data().historyLoaded(peer);
+				if (!_descriptor.filterCallback(peer)) {
 					continue;
 				} else if (history && _chatsIndexed->getRow(history)) {
 					continue;
@@ -1042,6 +1068,7 @@ void ShareBox::Inner::peopleReceived(
 				_byUsernameFiltered.push_back(peer);
 				d_byUsernameFiltered.push_back(std::make_unique<Chat>(
 					peer,
+					_st.item,
 					[=] { repaintChat(peer); }));
 				updateChatName(d_byUsernameFiltered.back().get(), peer);
 			}

Telegram/SourceFiles/boxes/share_box.h

@@ -14,6 +14,12 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/effects/round_checkbox.h"
 #include "mtproto/sender.h"
 
+namespace style {
+struct MultiSelect;
+struct InputField;
+struct PeerList;
+} // namespace style
+
 namespace SendMenu {
 enum class Type;
 } // namespace SendMenu
@@ -60,12 +66,21 @@ public:
 		Api::SendOptions)>;
 	using FilterCallback = Fn<bool(PeerData*)>;
 
-	ShareBox(
-		QWidget*,
-		not_null<Window::SessionNavigation*> navigation,
-		CopyCallback &&copyCallback,
-		SubmitCallback &&submitCallback,
-		FilterCallback &&filterCallback);
+	struct Descriptor {
+		not_null<Main::Session*> session;
+		CopyCallback copyCallback;
+		SubmitCallback submitCallback;
+		FilterCallback filterCallback;
+		Window::SessionNavigation *navigation = nullptr;
+		Fn<void(not_null<Ui::InputField*>)> initSpellchecker;
+		Fn<void(not_null<Ui::InputField*>)> initEditLink;
+		object_ptr<Ui::RpWidget> bottomWidget = { nullptr };
+		rpl::producer<QString> copyLinkText;
+		const style::MultiSelect *stMultiSelect = nullptr;
+		const style::InputField *stComment = nullptr;
+		const style::PeerList *st = nullptr;
+	};
+	ShareBox(QWidget*, Descriptor &&descriptor);
 
 protected:
 	void prepare() override;
@@ -102,22 +117,20 @@ private:
 	void peopleDone(
 		const MTPcontacts_Found &result,
 		mtpRequestId requestId);
-	void peopleFail(const RPCError &error, mtpRequestId requestId);
+	void peopleFail(const MTP::Error &error, mtpRequestId requestId);
 
-	const not_null<Window::SessionNavigation*> _navigation;
+	Descriptor _descriptor;
 	MTP::Sender _api;
 
-	CopyCallback _copyCallback;
-	SubmitCallback _submitCallback;
-	FilterCallback _filterCallback;
-
 	object_ptr<Ui::MultiSelect> _select;
 	object_ptr<Ui::SlideWrap<Ui::InputField>> _comment;
+	object_ptr<Ui::RpWidget> _bottomWidget;
 
 	class Inner;
 	QPointer<Inner> _inner;
 
 	bool _hasSelected = false;
+	rpl::variable<QString> _copyLinkText;
 
 	base::Timer _searchTimer;
 	QString _peopleQuery;

Telegram/SourceFiles/boxes/single_choice_box.cpp

@@ -30,8 +30,8 @@ void SingleChoiceBox(
 	layout->add(object_ptr<Ui::FixedHeightWidget>(
 		layout,
 		st::boxOptionListPadding.top() + st::autolockButton.margin.top()));
-	auto &&ints = ranges::view::ints(0, ranges::unreachable);
-	for (const auto &[i, text] : ranges::view::zip(ints, args.options)) {
+	auto &&ints = ranges::views::ints(0, ranges::unreachable);
+	for (const auto &[i, text] : ranges::views::zip(ints, args.options)) {
 		layout->add(
 			object_ptr<Ui::Radiobutton>(
 				layout,

Telegram/SourceFiles/boxes/sticker_set_box.cpp

@@ -272,7 +272,7 @@ StickerSetBox::Inner::Inner(
 		_input
 	)).done([=](const MTPmessages_StickerSet &result) {
 		gotSet(result);
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		_loaded = true;
 		Ui::show(Box<InformBox>(tr::lng_stickers_not_found(tr::now)));
 	}).send();
@@ -566,7 +566,6 @@ int32 StickerSetBox::Inner::stickerFromGlobalPos(const QPoint &p) const {
 }
 
 void StickerSetBox::Inner::paintEvent(QPaintEvent *e) {
-	QRect r(e->rect());
 	Painter p(this);
 
 	if (_elements.empty()) {
@@ -758,7 +757,7 @@ void StickerSetBox::Inner::install() {
 		MTP_bool(false)
 	)).done([=](const MTPmessages_StickerSetInstallResult &result) {
 		installDone(result);
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		Ui::show(Box<InformBox>(tr::lng_stickers_not_found(tr::now)));
 	}).send();
 }

Telegram/SourceFiles/boxes/stickers_box.cpp

@@ -778,7 +778,7 @@ void StickersBox::installSet(uint64 setId) {
 			MTP_boolFalse()
 		)).done([=](const MTPmessages_StickerSetInstallResult &result) {
 			installDone(result);
-		}).fail([=](const RPCError &error) {
+		}).fail([=](const MTP::Error &error) {
 			installFail(error, setId);
 		}).send();
 
@@ -793,7 +793,7 @@ void StickersBox::installDone(const MTPmessages_StickerSetInstallResult &result)
 	}
 }
 
-void StickersBox::installFail(const RPCError &error, uint64 setId) {
+void StickersBox::installFail(const MTP::Error &error, uint64 setId) {
 	const auto &sets = session().data().stickers().sets();
 	const auto it = sets.find(setId);
 	if (it == sets.cend()) {
@@ -1765,7 +1765,7 @@ void StickersBox::Inner::handleMegagroupSetAddressChange() {
 			setMegagroupSelectedSet(MTP_inputStickerSetID(
 				MTP_long(set->id),
 				MTP_long(set->access)));
-		}).fail([=](const RPCError &error) {
+		}).fail([=](const MTP::Error &error) {
 			_megagroupSetRequestId = 0;
 			setMegagroupSelectedSet(MTP_inputStickerSetEmpty());
 		}).send();

Telegram/SourceFiles/boxes/stickers_box.h

@@ -122,7 +122,7 @@ private:
 	QPixmap grabContentCache();
 
 	void installDone(const MTPmessages_StickerSetInstallResult &result);
-	void installFail(const RPCError &error, uint64 setId);
+	void installFail(const MTP::Error &error, uint64 setId);
 
 	void preloadArchivedSets();
 	void requestArchivedSets();

Telegram/SourceFiles/boxes/url_auth_box.cpp

@@ -41,10 +41,13 @@ void UrlAuthBox::Activate(
 	const auto buttonId = button->buttonId;
 	const auto url = QString::fromUtf8(button->data);
 
+	using Flag = MTPmessages_RequestUrlAuth::Flag;
 	button->requestId = session->api().request(MTPmessages_RequestUrlAuth(
+		MTP_flags(Flag::f_peer | Flag::f_msg_id | Flag::f_button_id),
 		inputPeer,
 		MTP_int(itemId.msg),
-		MTP_int(buttonId)
+		MTP_int(buttonId),
+		MTPstring() // #TODO auth url
 	)).done([=](const MTPUrlAuthResult &result) {
 		const auto button = HistoryMessageMarkupButton::Get(
 			&session->data(),
@@ -61,9 +64,11 @@ void UrlAuthBox::Activate(
 		}, [&](const MTPDurlAuthResultDefault &data) {
 			HiddenUrlClickHandler::Open(url);
 		}, [&](const MTPDurlAuthResultRequest &data) {
-			Request(data, session->data().message(itemId), row, column);
+			if (const auto item = session->data().message(itemId)) {
+				Request(data, item, row, column);
+			}
 		});
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		const auto button = HistoryMessageMarkupButton::Get(
 			&session->data(),
 			itemId,
@@ -76,6 +81,36 @@ void UrlAuthBox::Activate(
 	}).send();
 }
 
+void UrlAuthBox::Activate(
+		not_null<Main::Session*> session,
+		const QString &url,
+		QVariant context) {
+	context = QVariant::fromValue([&] {
+		auto result = context.value<ClickHandlerContext>();
+		result.skipBotAutoLogin = true;
+		return result;
+	}());
+
+	using Flag = MTPmessages_RequestUrlAuth::Flag;
+	session->api().request(MTPmessages_RequestUrlAuth(
+		MTP_flags(Flag::f_url),
+		MTPInputPeer(),
+		MTPint(), // msg_id
+		MTPint(), // button_id
+		MTP_string(url)
+	)).done([=](const MTPUrlAuthResult &result) {
+		result.match([&](const MTPDurlAuthResultAccepted &data) {
+			UrlClickHandler::Open(qs(data.vurl()), context);
+		}, [&](const MTPDurlAuthResultDefault &data) {
+			HiddenUrlClickHandler::Open(url, context);
+		}, [&](const MTPDurlAuthResultRequest &data) {
+			Request(data, session, url, context);
+		});
+	}).fail([=](const MTP::Error &error) {
+		HiddenUrlClickHandler::Open(url, context);
+	}).send();
+}
+
 void UrlAuthBox::Request(
 		const MTPDurlAuthResultRequest &request,
 		not_null<const HistoryItem*> message,
@@ -111,11 +146,14 @@ void UrlAuthBox::Request(
 		} else if (const auto msg = session->data().message(itemId)) {
 			const auto allowWrite = (result == Result::AuthAndAllowWrite);
 			using Flag = MTPmessages_AcceptUrlAuth::Flag;
+			const auto flags = (allowWrite ? Flag::f_write_allowed : Flag(0))
+				| (Flag::f_peer | Flag::f_msg_id | Flag::f_button_id);
 			session->api().request(MTPmessages_AcceptUrlAuth(
-				MTP_flags(allowWrite ? Flag::f_write_allowed : Flag(0)),
+				MTP_flags(flags),
 				inputPeer,
 				MTP_int(itemId.msg),
-				MTP_int(buttonId)
+				MTP_int(buttonId),
+				MTPstring() // #TODO auth url
 			)).done([=](const MTPUrlAuthResult &result) {
 				const auto to = result.match(
 				[&](const MTPDurlAuthResultAccepted &data) {
@@ -128,7 +166,58 @@ void UrlAuthBox::Request(
 					return url;
 				});
 				finishWithUrl(to);
-			}).fail([=](const RPCError &error) {
+			}).fail([=](const MTP::Error &error) {
+				finishWithUrl(url);
+			}).send();
+		}
+	};
+	*box = Ui::show(
+		Box<UrlAuthBox>(session, url, qs(request.vdomain()), bot, callback),
+		Ui::LayerOption::KeepOther);
+}
+
+void UrlAuthBox::Request(
+		const MTPDurlAuthResultRequest &request,
+		not_null<Main::Session*> session,
+		const QString &url,
+		QVariant context) {
+	const auto bot = request.is_request_write_access()
+		? session->data().processUser(request.vbot()).get()
+		: nullptr;
+	const auto box = std::make_shared<QPointer<Ui::BoxContent>>();
+	const auto finishWithUrl = [=](const QString &url) {
+		if (*box) {
+			(*box)->closeBox();
+		}
+		UrlClickHandler::Open(url, context);
+	};
+	const auto callback = [=](Result result) {
+		if (result == Result::None) {
+			finishWithUrl(url);
+		} else {
+			const auto allowWrite = (result == Result::AuthAndAllowWrite);
+			using Flag = MTPmessages_AcceptUrlAuth::Flag;
+			const auto flags = (allowWrite ? Flag::f_write_allowed : Flag(0))
+				| Flag::f_url;
+			session->api().request(MTPmessages_AcceptUrlAuth(
+				MTP_flags(flags),
+				MTPInputPeer(),
+				MTPint(), // msg_id
+				MTPint(), // button_id
+				MTP_string(url)
+			)).done([=](const MTPUrlAuthResult &result) {
+				const auto to = result.match(
+				[&](const MTPDurlAuthResultAccepted &data) {
+					return qs(data.vurl());
+				}, [&](const MTPDurlAuthResultDefault &data) {
+					return url;
+				}, [&](const MTPDurlAuthResultRequest &data) {
+					LOG(("API Error: "
+						"got urlAuthResultRequest after acceptUrlAuth."));
+					return url;
+				});
+				finishWithUrl(to);
+			}).fail([=](const MTP::Error &error) {
 				finishWithUrl(url);
 			}).send();
 		}

Telegram/SourceFiles/boxes/url_auth_box.h

@@ -22,6 +22,10 @@ public:
 		not_null<const HistoryItem*> message,
 		int row,
 		int column);
+	static void Activate(
+		not_null<Main::Session*> session,
+		const QString &url,
+		QVariant context);
 
 protected:
 	void prepare() override;
@@ -32,6 +36,11 @@ private:
 		not_null<const HistoryItem*> message,
 		int row,
 		int column);
+	static void Request(
+		const MTPDurlAuthResultRequest &request,
+		not_null<Main::Session*> session,
+		const QString &url,
+		QVariant context);
 
 	enum class Result {
 		None,

Telegram/SourceFiles/boxes/username_box.cpp

@@ -120,7 +120,7 @@ void UsernameBox::save() {
 		MTP_string(_sentUsername)
 	)).done([=](const MTPUser &result) {
 		updateDone(result);
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		updateFail(error);
 	}).send();
 }
@@ -135,7 +135,7 @@ void UsernameBox::check() {
 			MTP_string(name)
 		)).done([=](const MTPBool &result) {
 			checkDone(result);
-		}).fail([=](const RPCError &error) {
+		}).fail([=](const MTP::Error &error) {
 			checkFail(error);
 		}).send();
 	}
@@ -190,7 +190,7 @@ void UsernameBox::updateDone(const MTPUser &user) {
 	closeBox();
 }
 
-void UsernameBox::updateFail(const RPCError &error) {
+void UsernameBox::updateFail(const MTP::Error &error) {
 	_saveRequestId = 0;
 	const auto self = _session->user();
 	const auto &err = error.type();
@@ -232,7 +232,7 @@ void UsernameBox::checkDone(const MTPBool &result) {
 	}
 }
 
-void UsernameBox::checkFail(const RPCError &error) {
+void UsernameBox::checkFail(const MTP::Error &error) {
 	_checkRequestId = 0;
 	QString err(error.type());
 	if (err == qstr("USERNAME_INVALID")) {

Telegram/SourceFiles/boxes/username_box.h

@@ -32,10 +32,10 @@ protected:
 
 private:
 	void updateDone(const MTPUser &result);
-	void updateFail(const RPCError &error);
+	void updateFail(const MTP::Error &error);
 
 	void checkDone(const MTPBool &result);
-	void checkFail(const RPCError &error);
+	void checkFail(const MTP::Error &error);
 
 	void save();
 

Telegram/SourceFiles/calls/calls.style

@@ -393,6 +393,8 @@ callErrorToast: Toast(defaultToast) {
 groupCallWidth: 380px;
 groupCallHeight: 580px;
 
+groupCallMuteButtonIconSize: size(55px, 55px);
+groupCallMuteButtonIconTop: 42px;
 groupCallRipple: RippleAnimation(defaultRippleAnimation) {
 	color: groupCallMembersBgRipple;
 }
@@ -407,7 +409,7 @@ groupCallMenu: Menu(defaultMenu) {
 	itemFgShortcutOver: groupCallMemberNotJoinedStatus;
 	itemFgShortcutDisabled: groupCallMemberNotJoinedStatus;
 
-	separatorFg: groupCallMemberNotJoinedStatus;
+	separatorFg: groupCallMenuBgOver;
 
 	arrow: icon {{ "dropdown_submenu_arrow", groupCallMemberNotJoinedStatus }};
 
@@ -415,6 +417,10 @@ groupCallMenu: Menu(defaultMenu) {
 		color: groupCallMenuBgRipple;
 	}
 }
+groupCallFinishMenu: Menu(groupCallMenu) {
+	itemFg: groupCallMemberMutedIcon;
+	itemFgOver: groupCallMemberMutedIcon;
+}
 groupCallMenuShadow: Shadow(defaultEmptyShadow) {
 	fallback: groupCallMenuBg;
 }
@@ -428,6 +434,29 @@ groupCallPopupMenu: PopupMenu(defaultPopupMenu) {
 	animation: groupCallPanelAnimation;
 }
 
+groupCallRecordingTimerPadding: margins(0px, 4px, 0px, 4px);
+groupCallRecordingTimerFont: font(12px);
+
+groupCallInnerDropdown: InnerDropdown(defaultInnerDropdown) {
+	shadow: groupCallMenuShadow;
+	animation: groupCallPanelAnimation;
+	bg: groupCallMenuBg;
+	scroll: defaultSolidScroll;
+	scrollPadding: margins(0px, 4px, 0px, 4px);
+}
+groupCallDropdownMenu: DropdownMenu(defaultDropdownMenu) {
+	wrap: groupCallInnerDropdown;
+	menu: groupCallMenu;
+}
+groupCallMembersListCheck: RoundCheckbox(defaultPeerListCheck) {
+	border: groupCallMembersBg;
+	bgActive: groupCallActiveFg;
+	check: icon {{ "default_checkbox_check", groupCallMembersFg, point(3px, 6px) }};
+}
+groupCallMembersListCheckbox: RoundImageCheckbox(defaultPeerListCheckbox) {
+	selectFg: groupCallActiveFg;
+	check: groupCallMembersListCheck;
+}
 groupCallMembersListItem: PeerListItem(defaultPeerListItem) {
 	button: OutlineButton(defaultPeerListButton) {
 		textBg: groupCallMembersBg;
@@ -442,14 +471,7 @@ groupCallMembersListItem: PeerListItem(defaultPeerListItem) {
 		ripple: groupCallRipple;
 	}
 	disabledCheckFg: groupCallMemberNotJoinedStatus;
-	checkbox: RoundImageCheckbox(defaultPeerListCheckbox) {
-		selectFg: groupCallActiveFg;
-		check: RoundCheckbox(defaultPeerListCheck) {
-			border: groupCallMembersBg;
-			bgActive: groupCallActiveFg;
-			check: icon {{ "default_checkbox_check", groupCallMembersFg, point(3px, 6px) }};
-		}
-	}
+	checkbox: groupCallMembersListCheckbox;
 	height: 52px;
 	photoPosition: point(12px, 6px);
 	namePosition: point(63px, 7px);
@@ -472,13 +494,46 @@ groupCallInviteDividerLabel: FlatLabel(defaultFlatLabel) {
 	textFg: groupCallMemberNotJoinedStatus;
 }
 groupCallInviteDividerPadding: margins(17px, 7px, 17px, 7px);
-
+groupCallInviteMembersListItem: PeerListItem(groupCallMembersListItem) {
+	statusFg: groupCallMemberNotJoinedStatus;
+	statusFgOver: groupCallMemberNotJoinedStatus;
+	statusFgActive: groupCallMemberInactiveStatus;
+}
 groupCallInviteMembersList: PeerList(groupCallMembersList) {
 	padding: margins(0px, 10px, 0px, 10px);
-	item: PeerListItem(groupCallMembersListItem) {
-		statusFg: groupCallMemberNotJoinedStatus;
-		statusFgOver: groupCallMemberNotJoinedStatus;
-		statusFgActive: groupCallMemberInactiveStatus;
+	item: groupCallInviteMembersListItem;
+}
+groupCallJoinAsList: PeerList(groupCallInviteMembersList) {
+	item: PeerListItem(groupCallInviteMembersListItem) {
+		height: 56px;
+		checkbox: RoundImageCheckbox(groupCallMembersListCheckbox) {
+			check: RoundCheckbox(groupCallMembersListCheck) {
+				size: 0px;
+			}
+			imageRadius: 19px;
+			imageSmallRadius: 15px;
+			selectFg: groupCallMemberInactiveStatus;
+		}
+		photoSize: 38px;
+		photoPosition: point(24px, 9px);
+		namePosition: point(73px, 9px);
+		statusPosition: point(73px, 28px);
+	}
+}
+peerListJoinAsList: PeerList(peerListBox) {
+	item: PeerListItem(peerListBoxItem) {
+		height: 56px;
+		checkbox: RoundImageCheckbox(defaultPeerListCheckbox) {
+			check: RoundCheckbox(defaultRoundCheckbox) {
+				size: 0px;
+			}
+			imageRadius: 19px;
+			imageSmallRadius: 15px;
+		}
+		photoSize: 38px;
+		photoPosition: point(24px, 9px);
+		namePosition: point(73px, 9px);
+		statusPosition: point(73px, 28px);
 	}
 }
 groupCallMultiSelect: MultiSelect(defaultMultiSelect) {
@@ -504,10 +559,46 @@ groupCallMultiSelect: MultiSelect(defaultMultiSelect) {
 		ripple: groupCallRipple;
 	}
 }
+groupCallField: InputField(defaultInputField) {
+	textMargins: margins(2px, 7px, 2px, 0px);
 
-groupCallMembersTop: 62px;
-groupCallTitleTop: 14px;
-groupCallSubtitleTop: 33px;
+	textBg: transparent;
+	textFg: groupCallMembersFg;
+
+	placeholderFg: groupCallMemberNotJoinedStatus;
+	placeholderFgActive: groupCallMemberNotJoinedStatus;
+	placeholderFgError: groupCallMemberNotJoinedStatus;
+	placeholderMargins: margins(0px, 0px, 0px, 0px);
+	placeholderScale: 0.;
+	placeholderFont: normalFont;
+	heightMin: 32px;
+
+	borderFg: inputBorderFg;
+	borderFgActive: groupCallMemberInactiveStatus;
+	borderFgError: activeLineFgError;
+
+	menu: groupCallPopupMenu;
+}
+groupCallShareBoxComment: InputField(groupCallField) {
+	textMargins: margins(8px, 8px, 8px, 6px);
+	heightMin: 36px;
+	heightMax: 72px;
+	placeholderMargins: margins(2px, 0px, 2px, 0px);
+	border: 0px;
+	borderActive: 0px;
+}
+groupCallShareBoxList: PeerList(groupCallMembersList) {
+	item: PeerListItem(groupCallMembersListItem) {
+		checkbox: RoundImageCheckbox(groupCallMembersListCheckbox) {
+			imageRadius: 28px;
+			imageSmallRadius: 24px;
+		}
+	}
+}
+
+groupCallMembersTop: 51px;
+groupCallTitleTop: 8px;
+groupCallSubtitleTop: 26px;
 
 groupCallMembersMargin: margins(16px, 16px, 16px, 28px);
 groupCallAddMember: SettingsButton(defaultSettingsButton) {
@@ -539,6 +630,31 @@ groupCallTitleLabel: FlatLabel(groupCallSubtitleLabel) {
 }
 groupCallAddButtonPosition: point(10px, 7px);
 groupCallMembersWidthMax: 360px;
+groupCallRecordingMark: 6px;
+groupCallRecordingMarkSkip: 4px;
+groupCallRecordingMarkTop: 8px;
+
+groupCallMenuTogglePosition: point(13px, 8px);
+groupCallMenuToggle: IconButton {
+	width: 36px;
+	height: 36px;
+
+	icon: icon {{ "info/edit/dotsmini", groupCallMemberInactiveIcon }};
+	iconOver: icon {{ "info/edit/dotsmini", groupCallMemberInactiveIcon }};
+	iconPosition: point(6px, 6px);
+
+	rippleAreaPosition: point(3px, 3px);
+	rippleAreaSize: 30px;
+	ripple: RippleAnimation(defaultRippleAnimation) {
+		color: groupCallMembersBg;
+	}
+}
+groupCallJoinAsToggle: UserpicButton(defaultUserpicButton) {
+	size: size(36px, 36px);
+	photoSize: 30px;
+	photoPosition: point(3px, 3px);
+}
+groupCallMenuPosition: point(-1px, 29px);
 
 groupCallActiveButton: IconButton {
 	width: 36px;
@@ -567,11 +683,12 @@ groupCallMemberColoredCrossLine: CrossLineAnimation(groupCallMemberInactiveCross
 }
 groupCallMemberInvited: icon {{ "calls/group_calls_invited", groupCallMemberInactiveIcon }};
 groupCallMemberInvitedPosition: point(2px, 12px);
+groupCallMemberRaisedHand: icon {{ "calls/group_calls_raised_hand", groupCallMemberInactiveStatus }};
 
 groupCallSettings: CallButton(callMicrophoneMute) {
 	button: IconButton(callButton) {
 		iconPosition: point(-1px, 22px);
-		icon: icon {{ "calls/call_settings", callIconFg }};
+		icon: icon {{ "calls/call_settings", groupCallIconFg }};
 		ripple: RippleAnimation(defaultRippleAnimation) {
 			color: callMuteRipple;
 		}
@@ -579,7 +696,7 @@ groupCallSettings: CallButton(callMicrophoneMute) {
 }
 groupCallHangup: CallButton(callHangup) {
 	button: IconButton(callButton) {
-		icon: icon {{ "calls/call_discard", callIconFg }};
+		icon: icon {{ "calls/call_discard", groupCallIconFg }};
 		ripple: RippleAnimation(defaultRippleAnimation) {
 			color: groupCallLeaveBgRipple;
 		}
@@ -674,6 +791,15 @@ groupCallSettingsAttentionButton: SettingsButton(groupCallSettingsButton) {
 groupCallBoxLabel: FlatLabel(boxLabel) {
 	textFg: groupCallMembersFg;
 }
+groupCallJoinAsLabel: FlatLabel(defaultFlatLabel) {
+	minWidth: 272px;
+	textFg: groupCallMembersFg;
+}
+groupCallJoinAsWidth: 330px;
+groupCallJoinAsTextTop: 4px;
+groupCallJoinAsNameTop: 23px;
+groupCallJoinAsPadding: margins(12px, 8px, 12px, 7px);
+groupCallJoinAsPhotoSize: 30px;
 
 groupCallRowBlobMinRadius: 27px;
 groupCallRowBlobMaxRadius: 29px;
@@ -730,8 +856,8 @@ groupCallTitleCloseIconOver: icon {
 };
 groupCallTitle: WindowTitle(defaultWindowTitle) {
 	height: 0px;
-	bg: transparent;
-	bgActive: transparent;
+	bg: groupCallBg;
+	bgActive: groupCallBg;
 	fg: transparent;
 	fgActive: transparent;
 	minimize: IconButton(groupCallTitleButton) {
@@ -805,6 +931,8 @@ groupCallStatusSpeakerArcsAnimation: ArcsAnimation(groupCallSpeakerArcsAnimation
 	startHeight: 1px;
 }
 
+groupCallShareMutedMargin: margins(16px, 16px, 16px, 8px);
+
 callTopBarMuteCrossLine: CrossLineAnimation {
 	fg: callBarFg;
 	icon: icon {{ "calls/call_record_active", callBarFg }};

Telegram/SourceFiles/calls/calls_box_controller.cpp

@@ -343,7 +343,7 @@ void BoxController::loadMoreRows() {
 		} break;
 		default: Unexpected("Type of messages.Messages (Calls::BoxController::preloadRows)");
 		}
-	}).fail([this](const RPCError &error) {
+	}).fail([this](const MTP::Error &error) {
 		_loadRequestId = 0;
 	}).send();
 }

Telegram/SourceFiles/calls/calls_call.cpp

@@ -32,6 +32,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 #include <tgcalls/Instance.h>
 #include <tgcalls/VideoCaptureInterface.h>
+#include <tgcalls/StaticThreads.h>
 
 namespace tgcalls {
 class InstanceImpl;
@@ -141,7 +142,7 @@ uint64 ComputeFingerprint(bytes::const_span authKey) {
 }
 
 [[nodiscard]] QVector<MTPstring> CollectVersionsForApi() {
-	return WrapVersions(tgcalls::Meta::Versions() | ranges::action::reverse);
+	return WrapVersions(tgcalls::Meta::Versions() | ranges::actions::reverse);
 }
 
 [[nodiscard]] Webrtc::VideoState StartVideoState(bool enabled) {
@@ -266,7 +267,7 @@ void Call::startOutgoing() {
 		const auto &config = _user->session().serverConfig();
 		_discardByTimeoutTimer.callOnce(config.callReceiveTimeoutMs);
 		handleUpdate(phoneCall);
-	}).fail([this](const RPCError &error) {
+	}).fail([this](const MTP::Error &error) {
 		handleRequestError(error);
 	}).send();
 }
@@ -281,7 +282,7 @@ void Call::startIncoming() {
 		if (_state.current() == State::Starting) {
 			setState(State::WaitingIncoming);
 		}
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		handleRequestError(error);
 	}).send();
 }
@@ -340,7 +341,7 @@ void Call::actuallyAnswer() {
 		}
 
 		handleUpdate(call.vphone_call());
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		handleRequestError(error);
 	}).send();
 }
@@ -456,7 +457,7 @@ void Call::sendSignalingData(const QByteArray &data) {
 		if (!mtpIsTrue(result)) {
 			finish(FinishType::Failed);
 		}
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		handleRequestError(error);
 	}).send();
 }
@@ -631,9 +632,9 @@ bool Call::handleSignalingData(
 	if (data.vphone_call_id().v != _id || !_instance) {
 		return false;
 	}
-	auto prepared = ranges::view::all(
+	auto prepared = ranges::views::all(
 		data.vdata().v
-	) | ranges::view::transform([](char byte) {
+	) | ranges::views::transform([](char byte) {
 		return static_cast<uint8_t>(byte);
 	}) | ranges::to_vector;
 	_instance->receiveSignalingData(std::move(prepared));
@@ -686,7 +687,7 @@ void Call::confirmAcceptedCall(const MTPDphoneCallAccepted &call) {
 		}
 
 		createAndStartController(call.vphone_call().c_phoneCall());
-	}).fail([=](const RPCError &error) {
+	}).fail([=](const MTP::Error &error) {
 		handleRequestError(error);
 	}).send();
 }
@@ -818,9 +819,9 @@ void Call::createAndStartController(const MTPDphoneCall &call) {
 		return data.vlibrary_versions().v;
 	}).value(0, MTP_bytes(kDefaultVersion)).v;
 
-	LOG(("Call Info: Creating instance with version '%1', allowP2P: %2"
-		).arg(QString::fromUtf8(version)
-		).arg(Logs::b(descriptor.config.enableP2P)));
+	LOG(("Call Info: Creating instance with version '%1', allowP2P: %2").arg(
+		QString::fromUtf8(version),
+		Logs::b(descriptor.config.enableP2P)));
 	_instance = tgcalls::Meta::Create(
 		version.toStdString(),
 		std::move(descriptor));
@@ -1052,7 +1053,7 @@ void Call::finish(FinishType type, const MTPPhoneCallDiscardReason &reason) {
 		// updates being handled, but in a guarded way.
 		crl::on_main(weak, [=] { setState(finalState); });
 		session->api().applyUpdates(result);
-	}).fail(crl::guard(weak, [this, finalState](const RPCError &error) {
+	}).fail(crl::guard(weak, [this, finalState](const MTP::Error &error) {
 		setState(finalState);
 	})).send();
 }
@@ -1069,7 +1070,7 @@ void Call::setFailedQueued(const QString &error) {
 	});
 }
 
-void Call::handleRequestError(const RPCError &error) {
+void Call::handleRequestError(const MTP::Error &error) {
 	if (error.type() == qstr("USER_PRIVACY_RESTRICTED")) {
 		Ui::show(Box<InformBox>(tr::lng_call_error_not_available(tr::now, lt_user, _user->name)));
 	} else if (error.type() == qstr("PARTICIPANT_VERSION_OUTDATED")) {

Telegram/SourceFiles/calls/calls_call.h

@@ -196,7 +196,7 @@ private:
 		Failed,
 	};
 
-	void handleRequestError(const RPCError &error);
+	void handleRequestError(const MTP::Error &error);
 	void handleControllerError(const QString &error);
 	void finish(
 		FinishType type,

Telegram/SourceFiles/calls/calls_choose_join_as.cpp

@@ -0,0 +1,315 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "calls/calls_choose_join_as.h"
+
+#include "calls/calls_group_common.h"
+#include "data/data_peer.h"
+#include "data/data_user.h"
+#include "data/data_channel.h"
+#include "data/data_session.h"
+#include "data/data_group_call.h"
+#include "main/main_session.h"
+#include "main/main_account.h"
+#include "lang/lang_keys.h"
+#include "apiwrap.h"
+#include "ui/layers/generic_box.h"
+#include "ui/text/text_utilities.h"
+#include "boxes/peer_list_box.h"
+#include "boxes/confirm_box.h"
+#include "styles/style_boxes.h"
+#include "styles/style_calls.h"
+
+namespace Calls::Group {
+namespace {
+
+using Context = ChooseJoinAsProcess::Context;
+
+class ListController : public PeerListController {
+public:
+	ListController(
+		std::vector<not_null<PeerData*>> list,
+		not_null<PeerData*> selected);
+
+	Main::Session &session() const override;
+	void prepare() override;
+	void rowClicked(not_null<PeerListRow*> row) override;
+
+	[[nodiscard]] not_null<PeerData*> selected() const;
+
+private:
+	std::unique_ptr<PeerListRow> createRow(not_null<PeerData*> peer);
+
+	std::vector<not_null<PeerData*>> _list;
+	not_null<PeerData*> _selected;
+
+};
+
+ListController::ListController(
+	std::vector<not_null<PeerData*>> list,
+	not_null<PeerData*> selected)
+: PeerListController()
+, _list(std::move(list))
+, _selected(selected) {
+}
+
+Main::Session &ListController::session() const {
+	return _selected->session();
+}
+
+std::unique_ptr<PeerListRow> ListController::createRow(
+		not_null<PeerData*> peer) {
+	auto result = std::make_unique<PeerListRow>(peer);
+	if (peer->isSelf()) {
+		result->setCustomStatus(
+			tr::lng_group_call_join_as_personal(tr::now));
+	} else if (const auto channel = peer->asChannel()) {
+		result->setCustomStatus(
+			(channel->isMegagroup()
+				? tr::lng_chat_status_members
+				: tr::lng_chat_status_subscribers)(
+					tr::now,
+					lt_count,
+					channel->membersCount()));
+	}
+	return result;
+}
+
+void ListController::prepare() {
+	delegate()->peerListSetSearchMode(PeerListSearchMode::Disabled);
+	for (const auto &peer : _list) {
+		auto row = createRow(peer);
+		const auto raw = row.get();
+		delegate()->peerListAppendRow(std::move(row));
+		if (peer == _selected) {
+			delegate()->peerListSetRowChecked(raw, true);
+			raw->finishCheckedAnimation();
+		}
+	}
+	delegate()->peerListRefreshRows();
+}
+
+void ListController::rowClicked(not_null<PeerListRow*> row) {
+	const auto peer = row->peer();
+	if (peer == _selected) {
+		return;
+	}
+	const auto previous = delegate()->peerListFindRow(_selected->id);
+	Assert(previous != nullptr);
+	delegate()->peerListSetRowChecked(previous, false);
+	delegate()->peerListSetRowChecked(row, true);
+	_selected = peer;
+}
+
+not_null<PeerData*> ListController::selected() const {
+	return _selected;
+}
+
+void ChooseJoinAsBox(
+		not_null<Ui::GenericBox*> box,
+		Context context,
+		JoinInfo info,
+		Fn<void(JoinInfo)> done) {
+	box->setWidth(st::groupCallJoinAsWidth);
+	box->setTitle([&] {
+		switch (context) {
+		case Context::Create: return tr::lng_group_call_start_as_header();
+		case Context::Join:
+		case Context::JoinWithConfirm: return tr::lng_group_call_join_as_header();
+		case Context::Switch: return tr::lng_group_call_display_as_header();
+		}
+		Unexpected("Context in ChooseJoinAsBox.");
+	}());
+	box->addRow(object_ptr<Ui::FlatLabel>(
+		box,
+		tr::lng_group_call_join_as_about(),
+		(context == Context::Switch
+			? st::groupCallJoinAsLabel
+			: st::confirmPhoneAboutLabel)));
+
+	auto &lifetime = box->lifetime();
+	const auto delegate = lifetime.make_state<
+		PeerListContentDelegateSimple
+	>();
+	const auto controller = lifetime.make_state<ListController>(
+		info.possibleJoinAs,
+		info.joinAs);
+	if (context == Context::Switch) {
+		controller->setStyleOverrides(
+			&st::groupCallJoinAsList,
+			&st::groupCallMultiSelect);
+	} else {
+		controller->setStyleOverrides(
+			&st::peerListJoinAsList,
+			nullptr);
+	}
+	const auto content = box->addRow(
+		object_ptr<PeerListContent>(box, controller),
+		style::margins());
+	delegate->setContent(content);
+	controller->setDelegate(delegate);
+	auto next = (context == Context::Switch)
+		? tr::lng_settings_save()
+		: tr::lng_continue();
+	box->addButton(std::move(next), [=] {
+		auto copy = info;
+		copy.joinAs = controller->selected();
+		done(std::move(copy));
+	});
+	box->addButton(tr::lng_cancel(), [=] { box->closeBox(); });
+}
+
+} // namespace
+
+ChooseJoinAsProcess::~ChooseJoinAsProcess() {
+	if (_request) {
+		_request->peer->session().api().request(_request->id).cancel();
+	}
+}
+
+void ChooseJoinAsProcess::start(
+		not_null<PeerData*> peer,
+		Context context,
+		Fn<void(object_ptr<Ui::BoxContent>)> showBox,
+		Fn<void(QString)> showToast,
+		Fn<void(JoinInfo)> done,
+		PeerData *changingJoinAsFrom) {
+	Expects(done != nullptr);
+
+	const auto session = &peer->session();
+	if (_request) {
+		if (_request->peer == peer) {
+			_request->context = context;
+			_request->showBox = std::move(showBox);
+			_request->showToast = std::move(showToast);
+			_request->done = std::move(done);
+			return;
+		}
+		session->api().request(_request->id).cancel();
+		_request = nullptr;
+	}
+	_request = std::make_unique<ChannelsListRequest>(
+		ChannelsListRequest{
+			.peer = peer,
+			.showBox = std::move(showBox),
+			.showToast = std::move(showToast),
+			.done = std::move(done),
+			.context = context });
+	session->account().sessionChanges(
+	) | rpl::start_with_next([=] {
+		_request = nullptr;
+	}, _request->lifetime);
+
+	const auto finish = [=](JoinInfo info) {
+		const auto peer = _request->peer;
+		const auto done = std::move(_request->done);
+		const auto box = _request->box;
+		_request = nullptr;
+		done(std::move(info));
+		if (const auto strong = box.data()) {
+			strong->closeBox();
+		}
+	};
+	_request->id = session->api().request(MTPphone_GetGroupCallJoinAs(
+		_request->peer->input
+	)).done([=](const MTPphone_JoinAsPeers &result) {
+		const auto peer = _request->peer;
+		const auto self = peer->session().user();
+		auto info = JoinInfo{ .peer = peer, .joinAs = self };
+		auto list = result.match([&](const MTPDphone_joinAsPeers &data) {
+			session->data().processUsers(data.vusers());
+			session->data().processChats(data.vchats());
+			const auto &peers = data.vpeers().v;
+			auto list = std::vector<not_null<PeerData*>>();
+			list.reserve(peers.size());
+			for (const auto &peer : peers) {
+				const auto peerId = peerFromMTP(peer);
+				if (const auto peer = session->data().peerLoaded(peerId)) {
+					if (!ranges::contains(list, not_null{ peer })) {
+						list.push_back(peer);
+					}
+				}
+			}
+			return list;
+		});
+		const auto selectedId = peer->groupCallDefaultJoinAs();
+		if (list.empty()) {
+			_request->showToast(Lang::Hard::ServerError());
+			return;
+		}
+		info.joinAs = [&]() -> not_null<PeerData*> {
+			const auto loaded = selectedId
+				? session->data().peerLoaded(selectedId)
+				: nullptr;
+			return (changingJoinAsFrom
+				&& ranges::contains(list, not_null{ changingJoinAsFrom }))
+				? not_null(changingJoinAsFrom)
+				: (loaded && ranges::contains(list, not_null{ loaded }))
+				? not_null(loaded)
+				: ranges::contains(list, self)
+				? self
+				: list.front();
+		}();
+		info.possibleJoinAs = std::move(list);
+
+		const auto onlyByMe = (info.possibleJoinAs.size() == 1)
+			&& (info.possibleJoinAs.front() == self)
+			&& (!peer->isChannel()
+				|| !peer->asChannel()->amAnonymous()
+				|| (peer->isBroadcast() && !peer->canWrite()));
+
+		// We already joined this voice chat, just rejoin with the same.
+		const auto byAlreadyUsed = selectedId
+			&& (info.joinAs->id == selectedId);
+
+		if (!changingJoinAsFrom && (onlyByMe || byAlreadyUsed)) {
+			if (context != Context::JoinWithConfirm) {
+				finish(info);
+				return;
+			}
+			const auto real = peer->groupCall();
+			const auto name = (real && !real->title().isEmpty())
+				? real->title()
+				: peer->name;
+			auto box = Box<::ConfirmBox>(
+				tr::lng_group_call_join_confirm(
+					tr::now,
+					lt_chat,
+					Ui::Text::Bold(name),
+					Ui::Text::WithEntities),
+				tr::lng_group_call_join(tr::now),
+				crl::guard(&_request->guard, [=] { finish(info); }));
+			box->boxClosing(
+			) | rpl::start_with_next([=] {
+				_request = nullptr;
+			}, _request->lifetime);
+
+			_request->box = box.data();
+			_request->showBox(std::move(box));
+			return;
+		}
+		auto box = Box(
+			ChooseJoinAsBox,
+			context,
+			std::move(info),
+			crl::guard(&_request->guard, finish));
+		box->boxClosing(
+		) | rpl::start_with_next([=] {
+			_request = nullptr;
+		}, _request->lifetime);
+
+		_request->box = box.data();
+		_request->showBox(std::move(box));
+	}).fail([=](const MTP::Error &error) {
+		finish({
+			.peer = _request->peer,
+			.joinAs = _request->peer->session().user(),
+		});
+	}).send();
+}
+
+} // namespace Calls::Group

Telegram/SourceFiles/calls/calls_choose_join_as.h

@@ -0,0 +1,59 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#pragma once
+
+#include "base/weak_ptr.h"
+#include "base/object_ptr.h"
+
+class PeerData;
+
+namespace Ui {
+class BoxContent;
+} // namespace Ui
+
+namespace Calls::Group {
+
+struct JoinInfo;
+
+class ChooseJoinAsProcess final {
+public:
+	ChooseJoinAsProcess() = default;
+	~ChooseJoinAsProcess();
+
+	enum class Context {
+		Create,
+		Join,
+		JoinWithConfirm,
+		Switch,
+	};
+
+	void start(
+		not_null<PeerData*> peer,
+		Context context,
+		Fn<void(object_ptr<Ui::BoxContent>)> showBox,
+		Fn<void(QString)> showToast,
+		Fn<void(JoinInfo)> done,
+		PeerData *changingJoinAsFrom = nullptr);
+
+private:
+	struct ChannelsListRequest {
+		not_null<PeerData*> peer;
+		Fn<void(object_ptr<Ui::BoxContent>)> showBox;
+		Fn<void(QString)> showToast;
+		Fn<void(JoinInfo)> done;
+		base::has_weak_ptr guard;
+		QPointer<Ui::BoxContent> box;
+		rpl::lifetime lifetime;
+		Context context = Context();
+		mtpRequestId id = 0;
+	};
+	std::unique_ptr<ChannelsListRequest> _request;
+
+};
+
+} // namespace Calls::Group

Telegram/SourceFiles/calls/calls_controller_webrtc.cpp

@@ -51,9 +51,9 @@ using namespace Webrtc;
 			encryptionKey.value.size()),
 		.outgoing = encryptionKey.isOutgoing,
 		.primary = ConvertEndpoint(endpoints.front()),
-		.alternatives = endpoints | ranges::view::drop(
+		.alternatives = endpoints | ranges::views::drop(
 			1
-		) | ranges::view::transform(ConvertEndpoint) | ranges::to_vector,
+		) | ranges::views::transform(ConvertEndpoint) | ranges::to_vector,
 		.maxLayer = config.maxApiLayer,
 		.allowP2P = config.enableP2P,
 		.sendSignalingData = std::move(sendSignalingData),