Allow sending quick replies like bot commands.

Telegram/SourceFiles/apiwrap.cpp

@@ -953,6 +953,7 @@ void ApiWrap::requestMoreDialogsIfNeeded() {
 		}
 	}
 	requestContacts();
+	_session->data().shortcutMessages().preloadShortcuts();
 }
 
 void ApiWrap::updateDialogsOffset(
@@ -3606,6 +3607,17 @@ void ApiWrap::cancelLocalItem(not_null<HistoryItem*> item) {
 	}
 }
 
+void ApiWrap::sendShortcutMessages(
+		not_null<PeerData*> peer,
+		BusinessShortcutId id) {
+	request(MTPmessages_SendQuickReplyMessages(
+		peer->input,
+		MTP_int(id)
+	)).done([=](const MTPUpdates &result) {
+		applyUpdates(result);
+	}).send();
+}
+
 void ApiWrap::sendMessage(MessageToSend &&message) {
 	const auto history = message.action.history;
 	const auto peer = history->peer;

Telegram/SourceFiles/apiwrap.h

@@ -337,6 +337,9 @@ public:
 
 	void cancelLocalItem(not_null<HistoryItem*> item);
 
+	void sendShortcutMessages(
+		not_null<PeerData*> peer,
+		BusinessShortcutId id);
 	void sendMessage(MessageToSend &&message);
 	void sendBotStart(
 		not_null<UserData*> bot,

Telegram/SourceFiles/chat_helpers/field_autocomplete.cpp

@@ -7,6 +7,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "chat_helpers/field_autocomplete.h"
 
+#include "data/business/data_shortcut_messages.h"
 #include "data/data_document.h"
 #include "data/data_document_media.h"
 #include "data/data_channel.h"
@@ -27,6 +28,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "storage/storage_account.h"
 #include "core/application.h"
 #include "core/core_settings.h"
+#include "lang/lang_keys.h"
 #include "lottie/lottie_single_player.h"
 #include "media/clip/media_clip_reader.h"
 #include "ui/widgets/popup_menu.h"
@@ -636,6 +638,27 @@ void FieldAutocomplete::updateFiltered(bool resetScroll) {
 				}
 			}
 		}
+		const auto shortcuts = _user
+			? _user->owner().shortcutMessages().shortcuts().list
+			: base::flat_map<BusinessShortcutId, Data::Shortcut>();
+		if (!hasUsername && !shortcuts.empty()) {
+			const auto self = _user->session().user();
+			for (const auto &[id, shortcut] : shortcuts) {
+				if (shortcut.count < 1) {
+					continue;
+				} else if (!listAllSuggestions) {
+					if (!shortcut.name.startsWith(_filter, Qt::CaseInsensitive)) {
+						continue;
+					}
+				}
+				brows.push_back(BotCommandRow{
+					self,
+					shortcut.name,
+					tr::lng_forum_messages(tr::now, lt_count, shortcut.count),
+					self->activeUserpicView()
+				});
+			}
+		}
 	}
 	rowsUpdated(
 		std::move(mrows),
@@ -1247,7 +1270,7 @@ bool FieldAutocomplete::Inner::chooseAtIndex(
 				command,
 				insertUsername ? ('@' + PrimaryUsername(user)) : QString());
 
-			_botCommandChosen.fire({ commandString, method });
+			_botCommandChosen.fire({ user, commandString, method });
 			return true;
 		}
 	}

Telegram/SourceFiles/chat_helpers/field_autocomplete.h

@@ -96,6 +96,7 @@ public:
 		ChooseMethod method = ChooseMethod::ByEnter;
 	};
 	struct BotCommandChosen {
+		not_null<UserData*> user;
 		QString command;
 		ChooseMethod method = ChooseMethod::ByEnter;
 	};

Telegram/SourceFiles/data/business/data_shortcut_messages.cpp

@@ -497,6 +497,16 @@ Shortcut ShortcutMessages::lookupShortcut(BusinessShortcutId id) const {
 	return i->second;
 }
 
+BusinessShortcutId ShortcutMessages::lookupShortcutId(
+		const QString &name) const {
+	for (const auto &[id, shortcut] : _shortcuts.list) {
+		if (!shortcut.name.compare(name, Qt::CaseInsensitive)) {
+			return id;
+		}
+	}
+	return {};
+}
+
 void ShortcutMessages::editShortcut(
 		BusinessShortcutId id,
 		QString name,

Telegram/SourceFiles/data/business/data_shortcut_messages.h

@@ -78,6 +78,8 @@ public:
 	[[nodiscard]] rpl::producer<ShortcutIdChange> shortcutIdChanged() const;
 	[[nodiscard]] BusinessShortcutId emplaceShortcut(QString name);
 	[[nodiscard]] Shortcut lookupShortcut(BusinessShortcutId id) const;
+	[[nodiscard]] BusinessShortcutId lookupShortcutId(
+		const QString &name) const;
 	void editShortcut(
 		BusinessShortcutId id,
 		QString name,

Telegram/SourceFiles/history/history_widget.cpp

@@ -52,6 +52,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "base/qt/qt_key_modifiers.h"
 #include "base/unixtime.h"
 #include "base/call_delayed.h"
+#include "data/business/data_shortcut_messages.h"
 #include "data/notify/data_notify_settings.h"
 #include "data/data_changes.h"
 #include "data/data_drafts.h"
@@ -431,7 +432,20 @@ HistoryWidget::HistoryWidget(
 
 	_fieldAutocomplete->botCommandChosen(
 	) | rpl::start_with_next([=](FieldAutocomplete::BotCommandChosen data) {
-		insertHashtagOrBotCommand(data.command, data.method);
+		using Method = FieldAutocomplete::ChooseMethod;
+		const auto messages = &data.user->owner().shortcutMessages();
+		const auto shortcutId = (_peer
+			&& data.user->isSelf()
+			&& data.method != Method::ByTab)
+			? messages->lookupShortcutId(data.command.mid(1))
+			: BusinessShortcutId();
+		if (shortcutId) {
+			session().api().sendShortcutMessages(_peer, shortcutId);
+			session().api().finishForwarding(prepareSendAction({}));
+			setFieldText(_field->getTextWithTagsPart(_field->textCursor().position()));
+		} else {
+			insertHashtagOrBotCommand(data.command, data.method);
+		}
 	}, lifetime());
 
 	_fieldAutocomplete->setModerateKeyActivateCallback([=](int key) {
@@ -1410,9 +1424,14 @@ AutocompleteQuery HistoryWidget::parseMentionHashtagBotCommandQuery() const {
 	} else if (result.query[0] == '@'
 		&& cRecentInlineBots().isEmpty()) {
 		session().local().readRecentHashtagsAndBots();
-	} else if (result.query[0] == '/'
-		&& ((_peer->isUser() && !_peer->asUser()->isBot()) || _editMsgId)) {
-		return AutocompleteQuery();
+	} else if (result.query[0] == '/') {
+		if (_editMsgId) {
+			return {};
+		} else if (_peer->isUser()
+			&& !_peer->asUser()->isBot()
+			&& _peer->owner().shortcutMessages().shortcuts().list.empty()) {
+			return {};
+		}
 	}
 	return result;
 }