Move channel requests to a layer.

Telegram/CMakeLists.txt

@@ -986,6 +986,8 @@ PRIVATE
     info/profile/info_profile_values.h
     info/profile/info_profile_widget.cpp
     info/profile/info_profile_widget.h
+    info/requests_list/info_requests_list_widget.cpp
+    info/requests_list/info_requests_list_widget.h
     info/saved/info_saved_sublists_widget.cpp
     info/saved/info_saved_sublists_widget.h
     info/settings/info_settings_widget.cpp

Telegram/SourceFiles/boxes/peers/edit_peer_requests_box.cpp

@@ -7,27 +7,30 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "boxes/peers/edit_peer_requests_box.h"
 
-#include "ui/effects/ripple_animation.h"
+#include "api/api_invite_links.h"
+#include "apiwrap.h"
+#include "base/unixtime.h"
 #include "boxes/peer_list_controllers.h"
 #include "boxes/peers/edit_participants_box.h" // SubscribeToMigration
 #include "boxes/peers/edit_peer_invite_link.h" // PrepareRequestedRowStatus
-#include "boxes/peers/prepare_short_info_box.h" // PrepareShortInfoBox
+#include "boxes/peers/edit_peer_requests_box.h"
-#include "history/view/history_view_requests_bar.h" // kRecentRequestsLimit
-#include "data/data_peer.h"
-#include "data/data_user.h"
-#include "data/data_chat.h"
 #include "data/data_channel.h"
+#include "data/data_chat.h"
+#include "data/data_peer.h"
 #include "data/data_session.h"
-#include "base/unixtime.h"
+#include "data/data_user.h"
+#include "history/view/history_view_requests_bar.h" // kRecentRequestsLimit
+#include "info/info_controller.h"
+#include "info/info_memento.h"
+#include "info/requests_list/info_requests_list_widget.h"
+#include "lang/lang_keys.h"
 #include "main/main_session.h"
 #include "mtproto/sender.h"
+#include "ui/effects/ripple_animation.h"
+#include "ui/painter.h"
 #include "ui/round_rect.h"
 #include "ui/text/text_utilities.h"
-#include "ui/painter.h"
-#include "lang/lang_keys.h"
 #include "window/window_session_controller.h"
-#include "apiwrap.h"
-#include "api/api_invite_links.h"
 #include "styles/style_boxes.h"
 
 namespace {
@@ -262,14 +265,10 @@ RequestsBoxController::~RequestsBoxController() = default;
 void RequestsBoxController::Start(
 		not_null<Window::SessionNavigation*> navigation,
 		not_null<PeerData*> peer) {
-	auto controller = std::make_unique<RequestsBoxController>(
+	navigation->showSection(
-		navigation,
+		std::make_shared<Info::Memento>(
-		peer->migrateToOrMe());
+			peer->migrateToOrMe(),
-	const auto initBox = [=](not_null<PeerListBox*> box) {
+			Info::Section::Type::RequestsList));
-		box->addButton(tr::lng_close(), [=] { box->closeBox(); });
-	};
-	navigation->parentController()->show(
-		Box<PeerListBox>(std::move(controller), initBox));
 }
 
 Main::Session &RequestsBoxController::session() const {
@@ -289,6 +288,58 @@ std::unique_ptr<PeerListRow> RequestsBoxController::createSearchRow(
 	return nullptr;
 }
 
+std::unique_ptr<PeerListRow> RequestsBoxController::createRestoredRow(
+		not_null<PeerData*> peer) {
+	if (const auto user = peer->asUser()) {
+		return createRow(user, _dates[user]);
+	}
+	return nullptr;
+}
+
+auto RequestsBoxController::saveState() const
+-> std::unique_ptr<PeerListState> {
+	auto result = PeerListController::saveState();
+
+	auto my = std::make_unique<SavedState>();
+	my->dates = _dates;
+	my->offsetDate = _offsetDate;
+	my->offsetUser = _offsetUser;
+	my->allLoaded = _allLoaded;
+	my->wasLoading = (_loadRequestId != 0);
+	if (const auto search = searchController()) {
+		my->searchState = search->saveState();
+	}
+	result->controllerState = std::move(my);
+	return result;
+}
+
+void RequestsBoxController::restoreState(
+		std::unique_ptr<PeerListState> state) {
+	auto typeErasedState = state
+		? state->controllerState.get()
+		: nullptr;
+	if (const auto my = dynamic_cast<SavedState*>(typeErasedState)) {
+		if (const auto requestId = base::take(_loadRequestId)) {
+			_api.request(requestId).cancel();
+		}
+		_dates = std::move(my->dates);
+		_offsetDate = my->offsetDate;
+		_offsetUser = my->offsetUser;
+		_allLoaded = my->allLoaded;
+		if (const auto search = searchController()) {
+			search->restoreState(std::move(my->searchState));
+		}
+		if (my->wasLoading) {
+			loadMoreRows();
+		}
+		PeerListController::restoreState(std::move(state));
+		if (delegate()->peerListFullRowsCount() || _allLoaded) {
+			refreshDescription();
+			delegate()->peerListRefreshRows();
+		}
+	}
+}
+
 void RequestsBoxController::prepare() {
 	delegate()->peerListSetSearchMode(PeerListSearchMode::Enabled);
 	delegate()->peerListSetTitle(_peer->isBroadcast()
@@ -356,9 +407,7 @@ void RequestsBoxController::refreshDescription() {
 }
 
 void RequestsBoxController::rowClicked(not_null<PeerListRow*> row) {
-	_navigation->parentController()->show(PrepareShortInfoBox(
+	_navigation->showPeerInfo(row->peer());
-		row->peer(),
-		_navigation));
 }
 
 void RequestsBoxController::rowElementClicked(
@@ -405,6 +454,7 @@ void RequestsBoxController::appendRow(
 		not_null<UserData*> user,
 		TimeId date) {
 	if (!delegate()->peerListFindRow(user->id.value)) {
+		_dates.emplace(user, date);
 		if (auto row = createRow(user, date)) {
 			delegate()->peerListAppendRow(std::move(row));
 			setDescriptionText(QString());
@@ -503,6 +553,7 @@ std::unique_ptr<PeerListRow> RequestsBoxController::createRow(
 		const auto search = static_cast<RequestsBoxSearchController*>(
 			searchController());
 		date = search->dateForUser(user);
+		_dates.emplace(user, date);
 	}
 	return std::make_unique<Row>(_helper.get(), user, date);
 }
@@ -574,6 +625,36 @@ TimeId RequestsBoxSearchController::dateForUser(not_null<UserData*> user) {
 	return {};
 }
 
+auto RequestsBoxSearchController::saveState() const
+-> std::unique_ptr<SavedStateBase> {
+	auto result = std::make_unique<SavedState>();
+	result->query = _query;
+	result->offsetDate = _offsetDate;
+	result->offsetUser = _offsetUser;
+	result->allLoaded = _allLoaded;
+	result->wasLoading = (_requestId != 0);
+	return result;
+}
+
+void RequestsBoxSearchController::restoreState(
+		std::unique_ptr<SavedStateBase> state) {
+	if (auto my = dynamic_cast<SavedState*>(state.get())) {
+		if (auto requestId = base::take(_requestId)) {
+			_api.request(requestId).cancel();
+		}
+		_cache.clear();
+		_queries.clear();
+
+		_allLoaded = my->allLoaded;
+		_offsetDate = my->offsetDate;
+		_offsetUser = my->offsetUser;
+		_query = my->query;
+		if (my->wasLoading) {
+			searchOnServer();
+		}
+	}
+}
+
 bool RequestsBoxSearchController::searchInCache() {
 	const auto i = _cache.find(_query);
 	if (i != _cache.cend()) {

Telegram/SourceFiles/boxes/peers/edit_peer_requests_box.h

@@ -35,15 +35,34 @@ public:
 	Main::Session &session() const override;
 	void prepare() override;
 	void rowClicked(not_null<PeerListRow*> row) override;
-	void rowElementClicked(not_null<PeerListRow*> row, int element) override;
+	void rowElementClicked(
+		not_null<PeerListRow*> row,
+		int element) override;
 	void loadMoreRows() override;
 
 	std::unique_ptr<PeerListRow> createSearchRow(
 		not_null<PeerData*> peer) override;
+	std::unique_ptr<PeerListRow> createRestoredRow(
+		not_null<PeerData*> peer) override;
+
+	std::unique_ptr<PeerListState> saveState() const override;
+	void restoreState(std::unique_ptr<PeerListState> state) override;
 
 private:
 	class RowHelper;
 
+	struct SavedState : SavedStateBase {
+		using SearchStateBase = PeerListSearchController::SavedStateBase;
+		std::unique_ptr<SearchStateBase> searchState;
+		base::flat_map<not_null<UserData*>, TimeId> dates;
+		TimeId offsetDate = 0;
+		UserData *offsetUser = nullptr;
+		bool allLoaded = false;
+		bool wasLoading = false;
+		rpl::lifetime lifetime;
+
+	};
+
 	static std::unique_ptr<PeerListSearchController> CreateSearchController(
 		not_null<PeerData*> peer);
 
@@ -63,6 +82,8 @@ private:
 	not_null<PeerData*> _peer;
 	MTP::Sender _api;
 
+	base::flat_map<not_null<UserData*>, TimeId> _dates;
+
 	TimeId _offsetDate = 0;
 	UserData *_offsetUser = nullptr;
 	mtpRequestId _loadRequestId = 0;
@@ -82,7 +103,17 @@ public:
 	void removeFromCache(not_null<UserData*> user);
 	[[nodiscard]] TimeId dateForUser(not_null<UserData*> user);
 
+	std::unique_ptr<SavedStateBase> saveState() const override;
+	void restoreState(std::unique_ptr<SavedStateBase> state) override;
+
 private:
+	struct SavedState : SavedStateBase {
+		QString query;
+		TimeId offsetDate = 0;
+		UserData *offsetUser = nullptr;
+		bool allLoaded = false;
+		bool wasLoading = false;
+	};
 	struct Item {
 		not_null<UserData*> user;
 		TimeId date = 0;

Telegram/SourceFiles/info/info_controller.cpp

@@ -296,6 +296,7 @@ void Controller::updateSearchControllers(
 		: Section::MediaType::kCount;
 	const auto hasMediaSearch = isMedia
 		&& SharedMediaAllowSearch(mediaType);
+	const auto hasRequestsListSearch = (type == Type::RequestsList);
 	const auto hasCommonGroupsSearch = (type == Type::CommonGroups);
 	const auto hasDownloadsSearch = (type == Type::Downloads);
 	const auto hasMembersSearch = (type == Type::Members)
@@ -312,6 +313,7 @@ void Controller::updateSearchControllers(
 		_searchController = nullptr;
 	}
 	if (hasMediaSearch
+		|| hasRequestsListSearch
 		|| hasCommonGroupsSearch
 		|| hasDownloadsSearch
 		|| hasMembersSearch) {

Telegram/SourceFiles/info/info_controller.h

@@ -106,6 +106,7 @@ public:
 		Media,
 		CommonGroups,
 		SimilarChannels,
+		RequestsList,
 		SavedSublists,
 		PeerGifts,
 		Members,

Telegram/SourceFiles/info/info_memento.cpp

@@ -14,6 +14,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "info/saved/info_saved_sublists_widget.h"
 #include "info/settings/info_settings_widget.h"
 #include "info/similar_channels/info_similar_channels_widget.h"
+#include "info/requests_list/info_requests_list_widget.h"
 #include "info/peer_gifts/info_peer_gifts_widget.h"
 #include "info/polls/info_polls_results_widget.h"
 #include "info/info_section_widget.h"
@@ -149,6 +150,8 @@ std::shared_ptr<ContentMemento> Memento::DefaultContent(
 	case Section::Type::SimilarChannels:
 		return std::make_shared<SimilarChannels::Memento>(
 			peer->asChannel());
+	case Section::Type::RequestsList:
+		return std::make_shared<RequestsList::Memento>(peer->asChannel());
 	case Section::Type::PeerGifts:
 		return std::make_shared<PeerGifts::Memento>(peer->asUser());
 	case Section::Type::SavedSublists:

Telegram/SourceFiles/info/requests_list/info_requests_list_widget.cpp

@@ -0,0 +1,287 @@
+/*
+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 "info/requests_list/info_requests_list_widget.h"
+
+#include "api/api_chat_participants.h"
+#include "apiwrap.h"
+#include "boxes/peers/edit_peer_requests_box.h"
+#include "boxes/peer_list_box.h"
+#include "data/data_channel.h"
+#include "data/data_peer_values.h"
+#include "data/data_session.h"
+#include "info/info_controller.h"
+#include "main/main_session.h"
+#include "ui/widgets/scroll_area.h"
+#include "ui/search_field_controller.h"
+#include "ui/ui_utility.h"
+#include "lang/lang_keys.h"
+#include "styles/style_info.h"
+#include "styles/style_widgets.h"
+#include "boxes/peers/edit_peer_requests_box.h"
+
+namespace Info::RequestsList {
+namespace {
+
+} // namespace
+
+class InnerWidget final
+	: public Ui::RpWidget
+	, private PeerListContentDelegate {
+public:
+	InnerWidget(
+		QWidget *parent,
+		not_null<Controller*> controller,
+		not_null<ChannelData*> channel);
+
+	[[nodiscard]] not_null<ChannelData*> channel() const {
+		return _channel;
+	}
+
+	rpl::producer<Ui::ScrollToRequest> scrollToRequests() const;
+
+	int desiredHeight() const;
+
+	void saveState(not_null<Memento*> memento);
+	void restoreState(not_null<Memento*> memento);
+
+protected:
+	void visibleTopBottomUpdated(
+		int visibleTop,
+		int visibleBottom) override;
+
+private:
+	using ListWidget = PeerListContent;
+
+	// PeerListContentDelegate interface
+	void peerListSetTitle(rpl::producer<QString> title) override;
+	void peerListSetAdditionalTitle(rpl::producer<QString> title) override;
+	bool peerListIsRowChecked(not_null<PeerListRow*> row) override;
+	int peerListSelectedRowsCount() override;
+	void peerListScrollToTop() override;
+	void peerListAddSelectedPeerInBunch(not_null<PeerData*> peer) override;
+	void peerListAddSelectedRowInBunch(not_null<PeerListRow*> row) override;
+	void peerListFinishSelectedRowsBunch() override;
+	void peerListSetDescription(object_ptr<Ui::FlatLabel> description) override;
+	std::shared_ptr<Main::SessionShow> peerListUiShow() override;
+
+	object_ptr<ListWidget> setupList(
+		RpWidget *parent,
+		not_null<RequestsBoxController*> controller);
+
+	const std::shared_ptr<Main::SessionShow> _show;
+	not_null<Controller*> _controller;
+	const not_null<ChannelData*> _channel;
+	std::unique_ptr<RequestsBoxController> _listController;
+	object_ptr<ListWidget> _list;
+
+	rpl::event_stream<Ui::ScrollToRequest> _scrollToRequests;
+};
+
+InnerWidget::InnerWidget(
+	QWidget *parent,
+	not_null<Controller*> controller,
+	not_null<ChannelData*> channel)
+: RpWidget(parent)
+, _show(controller->uiShow())
+, _controller(controller)
+, _channel(channel)
+, _listController(std::make_unique<RequestsBoxController>(
+	controller,
+	_channel))
+, _list(setupList(this, _listController.get())) {
+	setContent(_list.data());
+	_listController->setDelegate(static_cast<PeerListDelegate*>(this));
+
+	controller->searchFieldController()->queryValue(
+	) | rpl::start_with_next([this](QString &&query) {
+		peerListScrollToTop();
+		content()->searchQueryChanged(std::move(query));
+	}, lifetime());
+}
+
+void InnerWidget::visibleTopBottomUpdated(
+		int visibleTop,
+		int visibleBottom) {
+	setChildVisibleTopBottom(_list, visibleTop, visibleBottom);
+}
+
+void InnerWidget::saveState(not_null<Memento*> memento) {
+	memento->setListState(_listController->saveState());
+}
+
+void InnerWidget::restoreState(not_null<Memento*> memento) {
+	_listController->restoreState(memento->listState());
+}
+
+rpl::producer<Ui::ScrollToRequest> InnerWidget::scrollToRequests() const {
+	return _scrollToRequests.events();
+}
+
+int InnerWidget::desiredHeight() const {
+	auto desired = 0;
+	desired += _list->fullRowsCount() * st::infoMembersList.item.height;
+	return qMax(height(), desired);
+}
+
+object_ptr<InnerWidget::ListWidget> InnerWidget::setupList(
+		RpWidget *parent,
+		not_null<RequestsBoxController*> controller) {
+	auto result = object_ptr<ListWidget>(parent, controller);
+	result->scrollToRequests(
+	) | rpl::start_with_next([this](Ui::ScrollToRequest request) {
+		auto addmin = (request.ymin < 0) ? 0 : st::infoCommonGroupsMargin.top();
+		auto addmax = (request.ymax < 0) ? 0 : st::infoCommonGroupsMargin.top();
+		_scrollToRequests.fire({
+			request.ymin + addmin,
+			request.ymax + addmax });
+	}, result->lifetime());
+	result->moveToLeft(0, st::infoCommonGroupsMargin.top());
+
+	parent->widthValue(
+	) | rpl::start_with_next([list = result.data()](int newWidth) {
+		list->resizeToWidth(newWidth);
+	}, result->lifetime());
+
+	result->heightValue(
+	) | rpl::start_with_next([parent](int listHeight) {
+		auto newHeight = st::infoCommonGroupsMargin.top()
+			+ listHeight
+			+ st::infoCommonGroupsMargin.bottom();
+		parent->resize(parent->width(), newHeight);
+	}, result->lifetime());
+
+	return result;
+}
+
+void InnerWidget::peerListSetTitle(rpl::producer<QString> title) {
+}
+
+void InnerWidget::peerListSetAdditionalTitle(rpl::producer<QString> title) {
+}
+
+bool InnerWidget::peerListIsRowChecked(not_null<PeerListRow*> row) {
+	return false;
+}
+
+int InnerWidget::peerListSelectedRowsCount() {
+	return 0;
+}
+
+void InnerWidget::peerListScrollToTop() {
+	_scrollToRequests.fire({ -1, -1 });
+}
+
+void InnerWidget::peerListAddSelectedPeerInBunch(not_null<PeerData*> peer) {
+	Unexpected("Item selection in Info::Profile::Members.");
+}
+
+void InnerWidget::peerListAddSelectedRowInBunch(not_null<PeerListRow*> row) {
+	Unexpected("Item selection in Info::Profile::Members.");
+}
+
+void InnerWidget::peerListFinishSelectedRowsBunch() {
+}
+
+void InnerWidget::peerListSetDescription(
+		object_ptr<Ui::FlatLabel> description) {
+	description.destroy();
+}
+
+std::shared_ptr<Main::SessionShow> InnerWidget::peerListUiShow() {
+	return _show;
+}
+
+Memento::Memento(not_null<ChannelData*> channel)
+: ContentMemento(channel, nullptr, PeerId()) {
+}
+
+Section Memento::section() const {
+	return Section(Section::Type::RequestsList);
+}
+
+not_null<ChannelData*> Memento::channel() const {
+	return peer()->asChannel();
+}
+
+object_ptr<ContentWidget> Memento::createWidget(
+		QWidget *parent,
+		not_null<Controller*> controller,
+		const QRect &geometry) {
+	auto result = object_ptr<Widget>(parent, controller, channel());
+	result->setInternalState(geometry, this);
+	return result;
+}
+
+void Memento::setListState(std::unique_ptr<PeerListState> state) {
+	_listState = std::move(state);
+}
+
+std::unique_ptr<PeerListState> Memento::listState() {
+	return std::move(_listState);
+}
+
+Memento::~Memento() = default;
+
+Widget::Widget(
+	QWidget *parent,
+	not_null<Controller*> controller,
+	not_null<ChannelData*> channel)
+: ContentWidget(parent, controller) {
+	controller->setSearchEnabledByContent(true);
+	_inner = setInnerWidget(object_ptr<InnerWidget>(
+		this,
+		controller,
+		channel));
+}
+
+rpl::producer<QString> Widget::title() {
+	return tr::lng_manage_peer_requests();
+}
+
+not_null<ChannelData*> Widget::channel() const {
+	return _inner->channel();
+}
+
+bool Widget::showInternal(not_null<ContentMemento*> memento) {
+	if (!controller()->validateMementoPeer(memento)) {
+		return false;
+	}
+	if (auto requestsMemento = dynamic_cast<Memento*>(memento.get())) {
+		if (requestsMemento->channel() == channel()) {
+			restoreState(requestsMemento);
+			return true;
+		}
+	}
+	return false;
+}
+
+void Widget::setInternalState(
+		const QRect &geometry,
+		not_null<Memento*> memento) {
+	setGeometry(geometry);
+	Ui::SendPendingMoveResizeEvents(this);
+	restoreState(memento);
+}
+
+std::shared_ptr<ContentMemento> Widget::doCreateMemento() {
+	auto result = std::make_shared<Memento>(channel());
+	saveState(result.get());
+	return result;
+}
+
+void Widget::saveState(not_null<Memento*> memento) {
+	memento->setScrollTop(scrollTopSave());
+	_inner->saveState(memento);
+}
+
+void Widget::restoreState(not_null<Memento*> memento) {
+	_inner->restoreState(memento);
+	scrollTopRestore(memento->scrollTop());
+}
+
+} // namespace Info::RequestsList

Telegram/SourceFiles/info/requests_list/info_requests_list_widget.h

@@ -0,0 +1,68 @@
+/*
+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 "info/info_content_widget.h"
+
+class ChannelData;
+struct PeerListState;
+
+namespace Info::RequestsList {
+
+class InnerWidget;
+
+class Memento final : public ContentMemento {
+public:
+	explicit Memento(not_null<ChannelData*> channel);
+
+	object_ptr<ContentWidget> createWidget(
+		QWidget *parent,
+		not_null<Controller*> controller,
+		const QRect &geometry) override;
+
+	Section section() const override;
+
+	[[nodiscard]] not_null<ChannelData*> channel() const;
+
+	void setListState(std::unique_ptr<PeerListState> state);
+	std::unique_ptr<PeerListState> listState();
+
+	~Memento();
+
+private:
+	std::unique_ptr<PeerListState> _listState;
+};
+
+class Widget final : public ContentWidget {
+public:
+	Widget(
+		QWidget *parent,
+		not_null<Controller*> controller,
+		not_null<ChannelData*> channel);
+
+	[[nodiscard]] not_null<ChannelData*> channel() const;
+
+	bool showInternal(
+		not_null<ContentMemento*> memento) override;
+
+	void setInternalState(
+		const QRect &geometry,
+		not_null<Memento*> memento);
+
+	rpl::producer<QString> title() override;
+
+private:
+	void saveState(not_null<Memento*> memento);
+	void restoreState(not_null<Memento*> memento);
+
+	std::shared_ptr<ContentMemento> doCreateMemento() override;
+
+	InnerWidget *_inner = nullptr;
+};
+
+} // namespace Info::RequestsList