Implement drag-n-drop to forum topics.

Telegram/SourceFiles/apiwrap.cpp

@@ -3200,7 +3200,7 @@ void ApiWrap::forwardMessages(
 				messageFromId,
 				messagePostAuthor,
 				item,
-				action.topicRootId); // #TODO forum forward
+				action.topicRootId);
 			_session->data().registerMessageRandomId(randomId, newId);
 			if (!localIds) {
 				localIds = std::make_shared<base::flat_map<uint64, FullMsgId>>();

Telegram/SourceFiles/boxes/peer_list_controllers.cpp

@@ -497,20 +497,24 @@ void ChooseRecipientBoxController::rowClicked(not_null<PeerListRow*> row) {
 				(*weak)->closeBox();
 			}
 		};
+		const auto filter = [=](not_null<Data::ForumTopic*> topic) {
+			return guard && (!_filter || _filter(topic));
+		};
 		auto owned = Box<PeerListBox>(
 			std::make_unique<ChooseTopicBoxController>(
 				forum,
-				std::move(callback)),
+				std::move(callback),
+				filter),
 			[=](not_null<PeerListBox*> box) {
-			box->addButton(tr::lng_cancel(), [=] {
+				box->addButton(tr::lng_cancel(), [=] {
-				box->closeBox();
+					box->closeBox();
-			});
+				});
 
-			forum->destroyed(
+				forum->destroyed(
-			) | rpl::start_with_next([=] {
+				) | rpl::start_with_next([=] {
-				box->closeBox();
+					box->closeBox();
-			}, box->lifetime());
+				}, box->lifetime());
-		});
+			});
 		*weak = owned.data();
 		delegate()->peerListShowBox(std::move(owned));
 		return;
@@ -604,6 +608,49 @@ bool ChooseTopicSearchController::loadMoreRows() {
 	return !_allLoaded;
 }
 
+ChooseTopicBoxController::Row::Row(not_null<Data::ForumTopic*> topic)
+: PeerListRow(topic->rootId().bare)
+, _topic(topic) {
+}
+
+QString ChooseTopicBoxController::Row::generateName() {
+	return _topic->title();
+}
+
+QString ChooseTopicBoxController::Row::generateShortName() {
+	return _topic->title();
+}
+
+auto ChooseTopicBoxController::Row::generatePaintUserpicCallback()
+-> PaintRoundImageCallback {
+	return [=](
+			Painter &p,
+			int x,
+			int y,
+			int outerWidth,
+			int size) {
+		auto view = std::shared_ptr<Data::CloudImageView>();
+		p.translate(x, y);
+		_topic->paintUserpic(p, view, {
+			.st = &st::forumTopicRow,
+			.now = crl::now(),
+			.width = outerWidth,
+			.paused = false,
+		});
+		p.translate(-x, -y);
+	};
+}
+
+auto ChooseTopicBoxController::Row::generateNameFirstLetters() const
+-> const base::flat_set<QChar> & {
+	return _topic->chatListFirstLetters();
+}
+
+auto ChooseTopicBoxController::Row::generateNameWords() const
+-> const base::flat_set<QString> & {
+	return _topic->chatListNameWords();
+}
+
 ChooseTopicBoxController::ChooseTopicBoxController(
 	not_null<Data::Forum*> forum,
 	FnMut<void(not_null<Data::ForumTopic*>)> callback,
@@ -656,8 +703,10 @@ void ChooseTopicBoxController::refreshRows(bool initial) {
 			const auto id = topic->rootId().bare;
 			auto already = delegate()->peerListFindRow(id);
 			if (initial || !already) {
-				delegate()->peerListAppendRow(createRow(topic));
+				if (auto created = createRow(topic)) {
-				added = true;
+					delegate()->peerListAppendRow(std::move(created));
+					added = true;
+				}
 			} else if (already->isSearchResult()) {
 				delegate()->peerListAppendFoundRow(already);
 				added = true;
@@ -681,49 +730,6 @@ std::unique_ptr<PeerListRow> ChooseTopicBoxController::createSearchRow(
 	return nullptr;
 }
 
-ChooseTopicBoxController::Row::Row(not_null<Data::ForumTopic*> topic)
-: PeerListRow(topic->rootId().bare)
-, _topic(topic) {
-}
-
-QString ChooseTopicBoxController::Row::generateName() {
-	return _topic->title();
-}
-
-QString ChooseTopicBoxController::Row::generateShortName() {
-	return _topic->title();
-}
-
-auto ChooseTopicBoxController::Row::generatePaintUserpicCallback()
--> PaintRoundImageCallback {
-	return [=](
-			Painter &p,
-			int x,
-			int y,
-			int outerWidth,
-			int size) {
-		auto view = std::shared_ptr<Data::CloudImageView>();
-		p.translate(x, y);
-		_topic->paintUserpic(p, view, {
-			.st = &st::forumTopicRow,
-			.now = crl::now(),
-			.width = outerWidth,
-			.paused = false,
-		});
-		p.translate(-x, -y);
-	};
-}
-
-auto ChooseTopicBoxController::Row::generateNameFirstLetters() const
--> const base::flat_set<QChar> & {
-	return _topic->chatListFirstLetters();
-}
-
-auto ChooseTopicBoxController::Row::generateNameWords() const
--> const base::flat_set<QString> & {
-	return _topic->chatListNameWords();
-}
-
 auto ChooseTopicBoxController::createRow(not_null<Data::ForumTopic*> topic)
 -> std::unique_ptr<Row> {
 	const auto skip = _filter ? !_filter(topic) : !topic->canWrite();

Telegram/SourceFiles/boxes/peers/edit_peer_invite_link.cpp

@@ -1204,7 +1204,7 @@ object_ptr<Ui::BoxContent> ShareInviteLinkBox(
 	auto object = Box<ShareBox>(ShareBox::Descriptor{
 		.session = &peer->session(),
 		.copyCallback = std::move(copyCallback),
-		.submitCallback = std::move(submitCallback), // #TODO forum forward
+		.submitCallback = std::move(submitCallback), // #TODO forum share
 		.filterCallback = [](auto peer) { return peer->canWrite(); },
 	});
 	*box = Ui::MakeWeak(object.data());

Telegram/SourceFiles/boxes/share_box.cpp

@@ -1292,7 +1292,7 @@ void FastShareMessage(
 		}
 
 		const auto error = [&] {
-			for (const auto peer : result) { // #TODO forum forward
+			for (const auto peer : result) { // #TODO forum share
 				const auto error = GetErrorTextForSending(
 					peer,
 					{ .forward = &items, .text = &comment });
@@ -1398,7 +1398,7 @@ void FastShareMessage(
 		}
 	};
 	auto filterCallback = [isGame](PeerData *peer) {
-		if (peer->canWrite()) { // #TODO forum forward
+		if (peer->canWrite()) { // #TODO forum share
 			if (auto channel = peer->asChannel()) {
 				return isGame ? (!channel->isBroadcast()) : true;
 			}

Telegram/SourceFiles/calls/group/calls_group_settings.cpp

@@ -142,7 +142,7 @@ object_ptr<ShareBox> ShareInviteLinkBox(
 		}
 
 		const auto error = [&] {
-			for (const auto peer : result) { // #TODO forum forward
+			for (const auto peer : result) { // #TODO forum share
 				const auto error = GetErrorTextForSending(
 					peer,
 					{ .text = &comment });
@@ -196,7 +196,7 @@ object_ptr<ShareBox> ShareInviteLinkBox(
 		showToast(tr::lng_share_done(tr::now));
 	};
 	auto filterCallback = [](PeerData *peer) {
-		return peer->canWrite(); // #TODO forum forward
+		return peer->canWrite(); // #TODO forum share
 	};
 
 	const auto scheduleStyle = [&] {

Telegram/SourceFiles/core/mime_type.cpp

@@ -7,7 +7,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "core/mime_type.h"
 
+#include "core/utils.h"
+
 #include <QtCore/QMimeDatabase>
+#include <QtCore/QMimeData>
 
 namespace Core {
 
@@ -152,4 +155,19 @@ bool FileIsImage(const QString &name, const QString &mime) {
 	return false;
 }
 
+std::shared_ptr<QMimeData> ShareMimeMediaData(
+		not_null<const QMimeData*> original) {
+	auto result = std::make_shared<QMimeData>();
+	if (original->hasFormat(u"application/x-td-forward"_q)) {
+		result->setData(u"application/x-td-forward"_q, "1");
+	}
+	if (original->hasImage()) {
+		result->setImageData(original->imageData());
+	}
+	if (auto list = base::GetMimeUrls(original); !list.isEmpty()) {
+		result->setUrls(std::move(list));
+	}
+	return result;
+}
+
 } // namespace Core

Telegram/SourceFiles/core/mime_type.h

@@ -12,6 +12,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include <QtCore/QStringList>
 #include <QtCore/QMimeType>
 
+class QMimeData;
+
 namespace Core {
 
 class MimeType {
@@ -47,4 +49,7 @@ private:
 
 [[nodiscard]] bool FileIsImage(const QString &name, const QString &mime);
 
+[[nodiscard]] std::shared_ptr<QMimeData> ShareMimeMediaData(
+	not_null<const QMimeData*> original);
+
 } // namespace Core

Telegram/SourceFiles/dialogs/dialogs.style

@@ -449,8 +449,8 @@ editTopicMaxHeight: 408px;
 chooseTopicListItem: PeerListItem(defaultPeerListItem) {
 	height: 44px;
 	photoSize: 28px;
-	photoPosition: point(16px, 5px);
+	photoPosition: point(8px, 5px);
-	namePosition: point(71px, 11px);
+	namePosition: point(55px, 11px);
 	nameStyle: TextStyle(defaultTextStyle) {
 		font: font(14px semibold);
 		linkFont: font(14px semibold);

Telegram/SourceFiles/history/history_item.cpp

@@ -1437,7 +1437,7 @@ ClickHandlerPtr goToMessageClickHandler(
 				returnToId
 			};
 			if (const auto item = peer->owner().message(peer, msgId)) {
-				controller->showMessage(item);
+				controller->showMessage(item, params);
 			} else {
 				controller->showPeerHistory(peer, params, msgId);
 			}

Telegram/SourceFiles/history/history_widget.h

@@ -150,8 +150,6 @@ public:
 
 	bool confirmSendingFiles(const QStringList &files);
 	bool confirmSendingFiles(not_null<const QMimeData*> data);
-	void sendFileConfirmed(const std::shared_ptr<FileLoadResult> &file,
-		const std::optional<FullMsgId> &oldId = std::nullopt);
 
 	void updateControlsVisibility();
 	void updateControlsGeometry();

Telegram/SourceFiles/history/view/history_view_corner_buttons.cpp

@@ -341,7 +341,8 @@ void CornerButtons::finishAnimations() {
 
 Fn<void(bool found)> CornerButtons::doneJumpFrom(
 		FullMsgId targetId,
-		FullMsgId originId) {
+		FullMsgId originId,
+		bool ignoreMessageNotFound) {
 	return [=](bool found) {
 		skipReplyReturn(targetId);
 		if (originId) {
@@ -351,7 +352,7 @@ Fn<void(bool found)> CornerButtons::doneJumpFrom(
 				}
 			}
 		}
-		if (!found) {
+		if (!found && !ignoreMessageNotFound) {
 			Ui::Toast::Show(
 				_scroll.get(),
 				tr::lng_message_not_found(tr::now));

Telegram/SourceFiles/history/view/history_view_corner_buttons.h

@@ -87,7 +87,8 @@ public:
 	}
 	[[nodiscard]] Fn<void(bool found)> doneJumpFrom(
 		FullMsgId targetId,
-		FullMsgId originId);
+		FullMsgId originId,
+		bool ignoreMessageNotFound = false);
 
 private:
 	bool eventFilter(QObject *o, QEvent *e) override;

Telegram/SourceFiles/history/view/history_view_list_widget.cpp

@@ -687,7 +687,7 @@ bool ListWidget::showAtPositionNow(
 		}
 		if (done) {
 			const auto found = !position.fullId.peer
-				|| !position.fullId.msg
+				|| !IsServerMsgId(position.fullId.msg)
 				|| viewForItem(position.fullId);
 			done(found);
 		}

Telegram/SourceFiles/history/view/history_view_replies_section.cpp

@@ -1796,10 +1796,11 @@ void RepliesWidget::showAtPosition(
 		anim::type animated) {
 	_lastShownAt = position.fullId;
 	controller()->setActiveChatEntry(activeChat());
+	const auto ignore = (position.fullId.msg == _rootId);
 	_inner->showAtPosition(
 		position,
 		animated,
-		_cornerButtons.doneJumpFrom(position.fullId, originItemId));
+		_cornerButtons.doneJumpFrom(position.fullId, originItemId, ignore));
 }
 
 void RepliesWidget::updateAdaptiveLayout() {
@@ -1962,6 +1963,23 @@ Window::SectionActionResult RepliesWidget::sendBotCommand(
 	return Window::SectionActionResult::Handle;
 }
 
+bool RepliesWidget::confirmSendingFiles(const QStringList &files) {
+	return confirmSendingFiles(files, QString());
+}
+
+bool RepliesWidget::confirmSendingFiles(not_null<const QMimeData*> data) {
+	return confirmSendingFiles(data, std::nullopt);
+}
+
+bool RepliesWidget::confirmSendingFiles(
+		const QStringList &files,
+		const QString &insertTextOnCancel) {
+	const auto premium = controller()->session().user()->isPremium();
+	return confirmSendingFiles(
+		Storage::PrepareMediaList(files, st::sendMediaPreviewSize, premium),
+		insertTextOnCancel);
+}
+
 void RepliesWidget::replyToMessage(FullMsgId itemId) {
 	_composeControls->replyToMessage(itemId);
 	refreshTopBarActiveChat();

Telegram/SourceFiles/history/view/history_view_replies_section.h

@@ -104,6 +104,9 @@ public:
 	Window::SectionActionResult sendBotCommand(
 		Bot::SendCommandRequest request) override;
 
+	bool confirmSendingFiles(const QStringList &files) override;
+	bool confirmSendingFiles(not_null<const QMimeData*> data) override;
+
 	void setInternalState(
 		const QRect &geometry,
 		not_null<RepliesMemento*> memento);
@@ -261,12 +264,15 @@ private:
 		QByteArray &&content,
 		std::optional<bool> overrideSendImagesAsPhotos = std::nullopt,
 		const QString &insertTextOnCancel = QString());
+	bool confirmSendingFiles(
+		const QStringList &files,
+		const QString &insertTextOnCancel);
 	bool confirmSendingFiles(
 		Ui::PreparedList &&list,
 		const QString &insertTextOnCancel = QString());
 	bool confirmSendingFiles(
 		not_null<const QMimeData*> data,
-		std::optional<bool> overrideSendImagesAsPhotos = std::nullopt,
+		std::optional<bool> overrideSendImagesAsPhotos,
 		const QString &insertTextOnCancel = QString());
 	bool showSendingFilesError(const Ui::PreparedList &list) const;
 	void sendingFilesConfirmed(

Telegram/SourceFiles/mainwidget.cpp

@@ -92,6 +92,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "core/shortcuts.h"
 #include "core/application.h"
 #include "core/changelogs.h"
+#include "core/mime_type.h"
 #include "base/unixtime.h"
 #include "calls/calls_call.h"
 #include "calls/calls_instance.h"
@@ -323,7 +324,6 @@ MainWidget::MainWidget(
 		Data::EntryUpdate::Flag::LocalDraftSet
 	) | rpl::start_with_next([=](const Data::EntryUpdate &update) {
 		controller->showThread(update.entry->asThread(), ShowAtUnreadMsgId);
-		_history->applyDraft(); // #TODO forum drop
 		controller->hideLayer();
 	}, lifetime());
 
@@ -574,7 +574,7 @@ bool MainWidget::shareUrl(
 bool MainWidget::inlineSwitchChosen(
 		not_null<Data::Thread*> thread,
 		const QString &botAndQuery) const {
-	if (!thread->canWrite()) { // #TODO forum forward
+	if (!thread->canWrite()) {
 		Ui::show(Ui::MakeInformBox(tr::lng_inline_switch_cant()));
 		return false;
 	}
@@ -617,26 +617,33 @@ bool MainWidget::sendPaths(not_null<Data::Thread*> thread) {
 			ShowAtTheEndMsgId,
 			Window::SectionShow::Way::ClearStack);
 	}
-	// #TODO forum drop
 	return (controller()->activeChatCurrent().thread() == thread)
-		&& _history->confirmSendingFiles(cSendPaths());
+		&& (_mainSection
+			? _mainSection->confirmSendingFiles(cSendPaths())
+			: _history->confirmSendingFiles(cSendPaths()));
 }
 
-void MainWidget::onFilesOrForwardDrop(
+bool MainWidget::onFilesOrForwardDrop(
 		not_null<Data::Thread*> thread,
-		const QMimeData *data) {
+		not_null<const QMimeData*> data) {
+	const auto history = thread->asHistory();
+	if (const auto forum = history ? history->peer->forum() : nullptr) {
+		Window::ShowDropMediaBox(
+			_controller,
+			Core::ShareMimeMediaData(data),
+			forum);
+		if (_hider) {
+			_hider->startHide();
+			clearHider(_hider);
+		}
+		return true;
+	}
 	if (data->hasFormat(qsl("application/x-td-forward"))) {
 		auto draft = Data::ForwardDraft{
 			.ids = session().data().takeMimeForwardIds(),
 		};
-		const auto history = thread->asHistory();
+		if (setForwardDraft(thread, std::move(draft))) {
-		if (const auto forum = history ? history->peer->forum() : nullptr) {
+			return true;
-			Window::ShowForwardMessagesBox(
-				_controller,
-				std::move(draft),
-				forum);
-		} else if (setForwardDraft(thread, std::move(draft))) {
-			return;
 		}
 		// We've already released the mouse button,
 		// so the forwarding is cancelled.
@@ -644,17 +651,22 @@ void MainWidget::onFilesOrForwardDrop(
 			_hider->startHide();
 			clearHider(_hider);
 		}
+		return false;
 	} else if (!thread->canWrite()) {
 		Ui::show(Ui::MakeInformBox(tr::lng_forward_send_files_cant()));
+		return false;
 	} else {
 		controller()->showThread(
 			thread,
 			ShowAtTheEndMsgId,
 			Window::SectionShow::Way::ClearStack);
-		if (thread->asHistory()) {
+		if (controller()->activeChatCurrent().thread() != thread) {
-			// #TODO forum drop
+			return false;
-			_history->confirmSendingFiles(data);
 		}
+		(_mainSection
+			? _mainSection->confirmSendingFiles(data)
+			: _history->confirmSendingFiles(data));
+		return true;
 	}
 }
 
@@ -1264,7 +1276,10 @@ void MainWidget::chooseThread(
 	if (selectingPeer()) {
 		_hider->offerThread(thread);
 	} else {
-		controller()->showThread(thread, showAtMsgId);
+		controller()->showThread(
+			thread,
+			showAtMsgId,
+			Window::SectionShow::Way::ClearStack);
 	}
 }
 
@@ -1522,6 +1537,31 @@ void MainWidget::ui_showPeerHistory(
 	floatPlayerCheckVisibility();
 }
 
+void MainWidget::showMessage(
+		not_null<const HistoryItem*> item,
+		const SectionShow &params) {
+	const auto peerId = item->history()->peer->id;
+	const auto itemId = item->id;
+	if (!v::is_null(params.origin)) {
+		if (_mainSection) {
+			if (_mainSection->showMessage(peerId, params, itemId)) {
+				return;
+			}
+		} else if (_history->peer() == item->history()->peer) {
+			ui_showPeerHistory(peerId, params, itemId);
+			return;
+		}
+	}
+	if (const auto topic = item->topic()) {
+		_controller->showTopic(topic, item->id, params);
+	} else {
+		_controller->showPeerHistory(
+			item->history(),
+			params,
+			item->id);
+	}
+}
+
 PeerData *MainWidget::peer() const {
 	return _history->peer();
 }
@@ -2710,31 +2750,31 @@ bool MainWidget::contentOverlapped(const QRect &globalRect) {
 void MainWidget::activate() {
 	if (_a_show.animating()) {
 		return;
-	} else if (!_mainSection) {
+	} else if (!cSendPaths().isEmpty()) {
-		if (_hider) {
+		const auto interpret = qstr("interpret://");
+		const auto path = cSendPaths()[0];
+		if (path.startsWith(interpret)) {
+			cSetSendPaths(QStringList());
+			const auto error = Support::InterpretSendPath(
+				_controller,
+				path.mid(interpret.size()));
+			if (!error.isEmpty()) {
+				Ui::show(Ui::MakeInformBox(error));
+			}
+		} else {
+			showSendPathsLayer();
+		}
+	} else if (_mainSection) {
+		_mainSection->setInnerFocus();
+	} else if (_hider) {
+		Assert(_dialogs != nullptr);
+		_dialogs->setInnerFocus();
+	} else if (!Ui::isLayerShown()) {
+		if (_history->peer()) {
+			_history->activate();
+		} else {
 			Assert(_dialogs != nullptr);
 			_dialogs->setInnerFocus();
-		} else if (!Ui::isLayerShown()) {
-			if (!cSendPaths().isEmpty()) {
-				const auto interpret = qstr("interpret://");
-				const auto path = cSendPaths()[0];
-				if (path.startsWith(interpret)) {
-					cSetSendPaths(QStringList());
-					const auto error = Support::InterpretSendPath(
-						_controller,
-						path.mid(interpret.size()));
-					if (!error.isEmpty()) {
-						Ui::show(Ui::MakeInformBox(error));
-					}
-				} else {
-					showSendPathsLayer();
-				}
-			} else if (_history->peer()) {
-				_history->activate();
-			} else {
-				Assert(_dialogs != nullptr);
-				_dialogs->setInnerFocus();
-			}
 		}
 	}
 	_controller->widget()->fixOrder();

Telegram/SourceFiles/mainwidget.h

@@ -179,9 +179,9 @@ public:
 		not_null<Data::Thread*> thread,
 		Data::ForwardDraft &&draft);
 	bool sendPaths(not_null<Data::Thread*> thread);
-	void onFilesOrForwardDrop(
+	bool onFilesOrForwardDrop(
 		not_null<Data::Thread*> thread,
-		const QMimeData *data);
+		not_null<const QMimeData*> data);
 	bool selectingPeer() const;
 	void clearSelectingPeer();
 
@@ -222,6 +222,9 @@ public:
 		PeerId peer,
 		const SectionShow &params,
 		MsgId msgId);
+	void showMessage(
+		not_null<const HistoryItem*> item,
+		const SectionShow &params);
 
 	bool notify_switchInlineBotButtonReceived(const QString &query, UserData *samePeerBot, MsgId samePeerReplyTo);
 

Telegram/SourceFiles/window/section_widget.h

@@ -151,6 +151,13 @@ public:
 		return SectionActionResult::Ignore;
 	}
 
+	virtual bool confirmSendingFiles(const QStringList &files) {
+		return false;
+	}
+	virtual bool confirmSendingFiles(not_null<const QMimeData*> data) {
+		return false;
+	}
+
 	// Create a memento of that section to store it in the history stack.
 	// This method may modify the section ("take" heavy items).
 	virtual std::shared_ptr<SectionMemento> createMemento();

Telegram/SourceFiles/window/window_peer_menu.cpp

@@ -1542,20 +1542,20 @@ QPointer<Ui::BoxContent> ShowForwardMessagesBox(
 		std::move(successCallback));
 }
 
-QPointer<Ui::BoxContent> ShowForwardMessagesBox(
+QPointer<Ui::BoxContent> ShowDropMediaBox(
 		not_null<Window::SessionNavigation*> navigation,
-		Data::ForwardDraft &&draft,
+		std::shared_ptr<QMimeData> data,
 		not_null<Data::Forum*> forum,
 		FnMut<void()> &&successCallback) {
 	const auto weak = std::make_shared<QPointer<Ui::BoxContent>>();
 	auto chosen = [
-		draft = std::move(draft),
+		data = std::move(data),
 		callback = std::move(successCallback),
 		weak,
 		navigation
 	](not_null<Data::ForumTopic*> topic) mutable {
 		const auto content = navigation->parentController()->content();
-		if (!content->setForwardDraft(topic, std::move(draft))) {
+		if (!content->onFilesOrForwardDrop(topic, data.get())) {
 			return;
 		} else if (const auto strong = *weak) {
 			strong->closeBox();

Telegram/SourceFiles/window/window_peer_menu.h

@@ -122,9 +122,9 @@ QPointer<Ui::BoxContent> ShowForwardMessagesBox(
 	not_null<Window::SessionNavigation*> navigation,
 	MessageIdsList &&items,
 	FnMut<void()> &&successCallback = nullptr);
-QPointer<Ui::BoxContent> ShowForwardMessagesBox(
+QPointer<Ui::BoxContent> ShowDropMediaBox(
 	not_null<Window::SessionNavigation*> navigation,
-	Data::ForwardDraft &&draft,
+	std::shared_ptr<QMimeData> data,
 	not_null<Data::Forum*> forum,
 	FnMut<void()> &&successCallback = nullptr);
 

Telegram/SourceFiles/window/window_session_controller.cpp

@@ -1670,26 +1670,19 @@ void SessionController::showPeerHistory(
 }
 
 void SessionController::showMessage(
-		not_null<const HistoryItem*> item) {
+		not_null<const HistoryItem*> item,
+		const SectionShow &params) {
 	_window->invokeForSessionController(
-		&item->history()->peer->session().account(),
+		&item->history()->session().account(),
 		item->history()->peer,
 		[&](not_null<SessionController*> controller) {
 			if (item->isScheduled()) {
 				controller->showSection(
 					std::make_shared<HistoryView::ScheduledMemento>(
 						item->history()),
-					SectionShow::Way::ClearStack);
+					params);
-			} else if (const auto topic = item->topic()) {
-				controller->showTopic(
-					topic,
-					item->id,
-					SectionShow::Way::ClearStack);
 			} else {
-				controller->showPeerHistory(
+				controller->content()->showMessage(item, params);
-					item->history()->peer,
-					SectionShow::Way::ClearStack,
-					item->id);
 			}
 		});
 }

Telegram/SourceFiles/window/window_session_controller.h

@@ -431,7 +431,9 @@ public:
 		const SectionShow &params = SectionShow::Way::ClearStack,
 		MsgId msgId = ShowAtUnreadMsgId) override;
 
-	void showMessage(not_null<const HistoryItem*> item);
+	void showMessage(
+		not_null<const HistoryItem*> item,
+		const SectionShow &params = SectionShow::Way::ClearStack);
 	void cancelUploadLayer(not_null<HistoryItem*> item);
 
 	void showLayer(

Telegram/cmake/td_ui.cmake

@@ -294,4 +294,5 @@ PRIVATE
     desktop-app::lib_webview
     desktop-app::lib_webrtc
     desktop-app::lib_stripe
+    desktop-app::external_kcoreaddons
 )