Add some more shortcuts for Support.

Telegram/SourceFiles/dialogs/dialogs_inner_widget.cpp

@@ -13,9 +13,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/feed/history_feed_section.h"
 #include "history/history.h"
 #include "history/history_item.h"
-#include "styles/style_dialogs.h"
-#include "styles/style_chat_helpers.h"
-#include "styles/style_window.h"
+#include "core/shortcuts.h"
 #include "ui/widgets/buttons.h"
 #include "ui/widgets/popup_menu.h"
 #include "ui/text_options.h"
@@ -36,6 +34,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "window/window_peer_menu.h"
 #include "ui/widgets/multi_select.h"
 #include "ui/empty_userpic.h"
+#include "styles/style_dialogs.h"
+#include "styles/style_chat_helpers.h"
+#include "styles/style_window.h"
 
 namespace {
 
@@ -160,6 +161,8 @@ DialogsInner::DialogsInner(QWidget *parent, not_null<Window::Controller*> contro
 		updateDialogRow(next, rect);
 	}, lifetime());
 	refresh();
+
+	setupShortcuts();
 }
 
 int DialogsInner::dialogsOffset() const {
@@ -2288,16 +2291,16 @@ void DialogsInner::selectSkip(int32 direction) {
 	update();
 }
 
-void DialogsInner::scrollToPeer(not_null<History*> history, MsgId msgId) {
+void DialogsInner::scrollToEntry(const Dialogs::RowDescriptor &entry) {
 	int32 fromY = -1;
 	if (_state == State::Default) {
-		if (auto row = shownDialogs()->getRow(history)) {
+		if (auto row = shownDialogs()->getRow(entry.key)) {
 			fromY = dialogsOffset() + row->pos() * st::dialogsRowHeight;
 		}
 	} else if (_state == State::Filtered) {
-		if (msgId) {
+		if (entry.fullId.msg) {
 			for (int32 i = 0, c = _searchResults.size(); i < c; ++i) {
-				if (_searchResults[i]->item()->history() == history && _searchResults[i]->item()->id == msgId) {
+				if (_searchResults[i]->item()->fullId() == entry.fullId) {
 					fromY = searchedOffset() + i * st::dialogsRowHeight;
 					break;
 				}
@@ -2305,7 +2308,7 @@ void DialogsInner::scrollToPeer(not_null<History*> history, MsgId msgId) {
 		}
 		if (fromY < 0) {
 			for (auto i = 0, c = _filterResults.size(); i != c; ++i) {
-				if (_filterResults[i]->history() == history) {
+				if (_filterResults[i]->key() == entry.key) {
 					fromY = filteredOffset() + (i * st::dialogsRowHeight);
 					break;
 				}
@@ -2551,7 +2554,6 @@ void DialogsInner::destroyData() {
 	}
 }
 
-
 Dialogs::RowDescriptor DialogsInner::chatListEntryBefore(
 		const Dialogs::RowDescriptor &which) const {
 	if (!which.key) {
@@ -2700,6 +2702,56 @@ Dialogs::RowDescriptor DialogsInner::chatListEntryAfter(
 	return Dialogs::RowDescriptor();
 }
 
+Dialogs::RowDescriptor DialogsInner::chatListEntryFirst() const {
+	if (_state == State::Default) {
+		const auto i = shownDialogs()->cbegin();
+		if (i != shownDialogs()->cend()) {
+			return Dialogs::RowDescriptor(
+				(*i)->key(),
+				FullMsgId(NoChannel, ShowAtUnreadMsgId));
+		}
+		return Dialogs::RowDescriptor();
+	} else if (!_filterResults.empty()) {
+		return Dialogs::RowDescriptor(
+			_filterResults.front()->key(),
+			FullMsgId(NoChannel, ShowAtUnreadMsgId));
+	} else if (!_peerSearchResults.empty()) {
+		return Dialogs::RowDescriptor(
+			App::history(_peerSearchResults.front()->peer),
+			FullMsgId(NoChannel, ShowAtUnreadMsgId));
+	} else if (!_searchResults.empty()) {
+		return Dialogs::RowDescriptor(
+			_searchResults.front()->item()->history(),
+			_searchResults.front()->item()->fullId());
+	}
+	return Dialogs::RowDescriptor();
+}
+
+Dialogs::RowDescriptor DialogsInner::chatListEntryLast() const {
+	if (_state == State::Default) {
+		const auto i = shownDialogs()->cend();
+		if (i != shownDialogs()->cbegin()) {
+			return Dialogs::RowDescriptor(
+				(*(i - 1))->key(),
+				FullMsgId(NoChannel, ShowAtUnreadMsgId));
+		}
+		return Dialogs::RowDescriptor();
+	} else if (!_searchResults.empty()) {
+		return Dialogs::RowDescriptor(
+			_searchResults.back()->item()->history(),
+			_searchResults.back()->item()->fullId());
+	} else if (!_peerSearchResults.empty()) {
+		return Dialogs::RowDescriptor(
+			App::history(_peerSearchResults.back()->peer),
+			FullMsgId(NoChannel, ShowAtUnreadMsgId));
+	} else if (!_filterResults.empty()) {
+		return Dialogs::RowDescriptor(
+			_filterResults.back()->key(),
+			FullMsgId(NoChannel, ShowAtUnreadMsgId));
+	}
+	return Dialogs::RowDescriptor();
+}
+
 Dialogs::IndexedList *DialogsInner::contactsList() {
 	return _contacts.get();
 }
@@ -2728,3 +2780,84 @@ MsgId DialogsInner::lastSearchMigratedId() const {
 	return _lastSearchMigratedId;
 }
 
+void DialogsInner::setupShortcuts() {
+	Shortcuts::Requests(
+	) | rpl::filter([=] {
+		return isActiveWindow() && !Ui::isLayerShown();
+	}) | rpl::start_with_next([=](not_null<Shortcuts::Request*> request) {
+		using Command = Shortcuts::Command;
+
+		if (App::main()->selectingPeer()) {
+			return;
+		}
+		const auto row = _controller->activeChatEntryCurrent();
+		if (row.key) {
+			request->check(Command::ChatPrevious) && request->handle([=] {
+				return showPreviousChat(row);
+			});
+			request->check(Command::ChatNext) && request->handle([=] {
+				return showNextChat(row);
+			});
+		}
+		request->check(Command::ChatFirst) && request->handle([=] {
+			return showFirstChat();
+		});
+		request->check(Command::ChatLast) && request->handle([=] {
+			return showLastChat();
+		});
+		if (Auth().supportMode() && row.key.history()) {
+			request->check(
+				Command::SupportScrollToCurrent
+			) && request->handle([=] {
+				scrollToEntry(row);
+				return true;
+			});
+		}
+	}, lifetime());
+}
+
+bool DialogsInner::showNextChat(const Dialogs::RowDescriptor &current) {
+	return jumpToDialogRow(chatListEntryAfter(current), 1);
+}
+
+bool DialogsInner::showPreviousChat(const Dialogs::RowDescriptor &current) {
+	return jumpToDialogRow(chatListEntryBefore(current), -1);
+}
+
+bool DialogsInner::showFirstChat() {
+	return jumpToDialogRow(chatListEntryFirst(), 1);
+}
+
+bool DialogsInner::showLastChat() {
+	return jumpToDialogRow(chatListEntryLast(), -1);
+}
+
+bool DialogsInner::jumpToDialogRow(
+		const Dialogs::RowDescriptor &to,
+		int skipDirection) {
+	const auto entry = [&] {
+		auto result = to;
+		if (Auth().supportMode()) {
+			while (result.key
+				&& !result.key.entry()->chatListUnreadCount()
+				&& !result.key.entry()->chatListUnreadMark()) {
+				result = (skipDirection > 0)
+					? chatListEntryAfter(result)
+					: chatListEntryBefore(result);
+			}
+		}
+		return result;
+	}();
+	if (const auto history = entry.key.history()) {
+		Ui::showPeerHistory(history, entry.fullId.msg);
+		return true;
+	} else if (const auto feed = entry.key.feed()) {
+		if (const auto item = App::histItemById(entry.fullId)) {
+			_controller->showSection(
+				HistoryFeed::Memento(feed, item->position()));
+		} else {
+			_controller->showSection(HistoryFeed::Memento(feed));
+		}
+	}
+	return false;
+}