Save media search state to memento.

Telegram/SourceFiles/history/history_search_controller.cpp

@@ -299,6 +299,41 @@ rpl::producer<SparseIdsSlice> SearchController::simpleIdsSlice(
 	};
 }
 
+auto SearchController::saveState() -> SavedState {
+	auto result = SavedState();
+	if (_current != _cache.end()) {
+		result.query = _current->first;
+		result.peerList = std::move(_current->second->peerData.list);
+		if (auto &migrated = _current->second->migratedData) {
+			result.migratedList = std::move(migrated->list);
+		}
+	}
+	return result;
+}
+
+void SearchController::restoreState(SavedState &&state) {
+	if (!state.query.peerId) {
+		return;
+	}
+
+	auto it = _cache.find(state.query);
+	if (it == _cache.end()) {
+		it = _cache.emplace(
+			state.query,
+			std::make_unique<CacheEntry>(state.query)).first;
+	}
+	auto replace = Data(it->second->peerData.peer);
+	replace.list = std::move(state.peerList);
+	it->second->peerData = std::move(replace);
+	if (auto &migrated = state.migratedList) {
+		Assert(it->second->migratedData.has_value());
+		auto replace = Data(it->second->migratedData->peer);
+		replace.list = std::move(*migrated);
+		it->second->migratedData = std::move(replace);
+	}
+	_current = it;
+}
+
 void SearchController::requestMore(
 		const SparseIdsSliceBuilder::AroundData &key,
 		const Query &query,
@@ -341,6 +376,10 @@ void DelayedSearchController::setQuery(const Query &query) {
 void DelayedSearchController::setQuery(
 		const Query &query,
 		TimeMs delay) {
+	if (currentQuery() == query) {
+		_timer.cancel();
+		return;
+	}
 	if (_controller.hasInCache(query)) {
 		setQueryFast(query);
 	} else {

Telegram/SourceFiles/history/history_search_controller.h

@@ -50,6 +50,7 @@ SearchResult ParseSearchResult(
 
 class SearchController : private MTP::Sender {
 public:
+	using IdsList = Storage::SparseIdsList;
 	struct Query {
 		using MediaType = Storage::SharedMediaType;
 
@@ -68,6 +69,11 @@ public:
 		}
 
 	};
+	struct SavedState {
+		Query query;
+		IdsList peerList;
+		base::optional<IdsList> migratedList;
+	};
 
 	void setQuery(const Query &query);
 	bool hasInCache(const Query &query) const;
@@ -82,13 +88,16 @@ public:
 		int limitBefore,
 		int limitAfter);
 
+	SavedState saveState();
+	void restoreState(SavedState &&state);
+
 private:
 	struct Data {
 		explicit Data(not_null<PeerData*> peer) : peer(peer) {
 		}
 
 		not_null<PeerData*> peer;
-		Storage::SparseIdsList list;
+		IdsList list;
 		base::flat_map<
 			SparseIdsSliceBuilder::AroundData,
 			rpl::lifetime> requests;
@@ -133,6 +142,8 @@ public:
 	DelayedSearchController();
 
 	using Query = SearchController::Query;
+	using SavedState = SearchController::SavedState;
+
 	void setQuery(const Query &query);
 	void setQuery(const Query &query, TimeMs delay);
 	void setQueryFast(const Query &query);
@@ -155,6 +166,14 @@ public:
 		return _sourceChanges.events();
 	}
 
+	SavedState saveState() {
+		return _controller.saveState();
+	}
+
+	void restoreState(SavedState &&state) {
+		_controller.restoreState(std::move(state));
+	}
+
 private:
 	SearchController _controller;
 	Query _nextQuery;

Telegram/SourceFiles/info/info.style

@@ -88,17 +88,18 @@ infoLayerMediaSearch: SearchFieldRow(infoMediaSearch) {
 	fieldCancelSkip: 46px;
 }
 infoTopBarSearchRow: SearchFieldRow(infoLayerMediaSearch) {
+	height: 52px;
 	padding: margins(0px, 12px, 8px, 10px);
 	fieldCancel: CrossButton(contactsSearchCancel) {
-		width: 50px;
+		width: 51px;
 		height: 52px;
 		cross: CrossAnimation {
-			size: 38px;
-			skip: 12px;
+			size: 42px;
+			skip: 14px;
 			stroke: 2px;
 			minScale: 0.3;
 		}
-		crossPosition: point(3px, 8px);
+		crossPosition: point(1px, 6px);
 	}
 }
 

Telegram/SourceFiles/info/info_content_widget.h

@@ -143,11 +143,18 @@ public:
 	int scrollTop() const {
 		return _scrollTop;
 	}
+	void setSearchFieldQuery(const QString &query) {
+		_searchFieldQuery = query;
+	}
+	QString searchFieldQuery() const {
+		return _searchFieldQuery;
+	}
 
 private:
 	const PeerId _peerId = 0;
 	const PeerId _migratedPeerId = 0;
 	int _scrollTop = 0;
+	QString _searchFieldQuery;
 
 };
 

Telegram/SourceFiles/info/info_controller.cpp

@@ -24,6 +24,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "history/history_shared_media.h"
 #include "info/info_content_widget.h"
 #include "info/info_memento.h"
+#include "info/media/info_media_widget.h"
 
 namespace Info {
 namespace {
@@ -50,7 +51,7 @@ Controller::Controller(
 	: nullptr)
 , _window(window)
 , _section(memento->section()) {
-	updateSearchControllers();
+	updateSearchControllers(memento);
 }
 
 Wrap Controller::wrap() const {
@@ -71,12 +72,13 @@ bool Controller::validateMementoPeer(
 		&& memento->migratedPeerId() == migratedPeerId();
 }
 
-void Controller::setSection(const Section &section) {
-	_section = section;
-	updateSearchControllers();
+void Controller::setSection(not_null<ContentMemento*> memento) {
+	_section = memento->section();
+	updateSearchControllers(memento);
 }
 
-void Controller::updateSearchControllers() {
+void Controller::updateSearchControllers(
+		not_null<ContentMemento*> memento) {
 	auto isMedia = (_section.type() == Section::Type::Media);
 	auto mediaType = isMedia
 		? _section.mediaType()
@@ -85,16 +87,21 @@ void Controller::updateSearchControllers() {
 		&& SharedMediaAllowSearch(mediaType);
 //	auto hasCommonGroupsSearch
 //		= (_section.type() == Section::Type::CommonGroups);
+	auto searchQuery = memento->searchFieldQuery();
 	if (isMedia) {
 		_searchController
 			= std::make_unique<Api::DelayedSearchController>();
-		_searchController->setQueryFast(produceSearchQuery());
+		auto mediaMemento = dynamic_cast<Media::Memento*>(memento.get());
+		Assert(mediaMemento != nullptr);
+		_searchController->restoreState(
+			mediaMemento->searchState());
 	} else {
 		_searchController = nullptr;
 	}
 	if (hasMediaSearch) {
 		_searchFieldController
-			= std::make_unique<Ui::SearchFieldController>();
+			= std::make_unique<Ui::SearchFieldController>(
+				searchQuery);
 		_searchFieldController->queryValue()
 			| rpl::start_with_next([=](QString &&query) {
 				_searchController->setQuery(
@@ -105,12 +112,25 @@ void Controller::updateSearchControllers() {
 	}
 }
 
+void Controller::saveSearchState(not_null<ContentMemento*> memento) {
+	if (_searchFieldController) {
+		memento->setSearchFieldQuery(
+			_searchFieldController->query());
+	}
+	if (_searchController) {
+		auto mediaMemento = dynamic_cast<Media::Memento*>(
+			memento.get());
+		Assert(mediaMemento != nullptr);
+		mediaMemento->setSearchState(_searchController->saveState());
+	}
+}
+
 auto Controller::produceSearchQuery(
-		QString &&query) const -> SearchQuery {
+		const QString &query) const -> SearchQuery {
 	auto result = SearchQuery();
 	result.type = _section.mediaType();
 	result.peerId = _peer->id;
-	result.query = std::move(query);
+	result.query = query;
 	result.migratedPeerId = _migrated ? _migrated->id : PeerId(0);
 	return result;
 }

Telegram/SourceFiles/info/info_controller.h

@@ -97,7 +97,7 @@ public:
 
 	Wrap wrap() const;
 	rpl::producer<Wrap> wrapValue() const;
-	void setSection(const Section &section);
+	void setSection(not_null<ContentMemento*> memento);
 	bool hasStackHistory() const;
 
 	not_null<Window::Controller*> window() const {
@@ -114,6 +114,8 @@ public:
 		return _searchController->sourceChanged();
 	}
 
+	void saveSearchState(not_null<ContentMemento*> memento);
+
 	rpl::lifetime &lifetime() {
 		return _lifetime;
 	}
@@ -123,9 +125,8 @@ public:
 private:
 	using SearchQuery = Api::DelayedSearchController::Query;
 
-	void updateSearchControllers();
-	SearchQuery produceSearchQuery(
-		QString &&query = QString()) const;
+	void updateSearchControllers(not_null<ContentMemento*> memento);
+	SearchQuery produceSearchQuery(const QString &query) const;
 
 	not_null<WrapWidget*> _widget;
 	not_null<PeerData*> _peer;

Telegram/SourceFiles/info/media/info_media_inner_widget.cpp

@@ -189,7 +189,7 @@ bool InnerWidget::showInternal(not_null<Memento*> memento) {
 
 void InnerWidget::switchToTab(Memento &&memento) {
 	// Save state of the tab before setSection() call.
-	_controller->setSection(memento.section());
+	_controller->setSection(&memento);
 	_list = setupList();
 	restoreState(&memento);
 	_list->show();

Telegram/SourceFiles/info/media/info_media_widget.cpp

@@ -54,6 +54,17 @@ Memento::Memento(not_null<Controller*> controller)
 	controller->section().mediaType()) {
 }
 
+Memento::Memento(PeerId peerId, PeerId migratedPeerId, Type type)
+: ContentMemento(peerId, migratedPeerId)
+, _type(type) {
+	_searchState.query.type = type;
+	_searchState.query.peerId = peerId;
+	_searchState.query.migratedPeerId = migratedPeerId;
+	if (migratedPeerId) {
+		_searchState.migratedList = Storage::SparseIdsList();
+	}
+}
+
 Section Memento::section() const {
 	return Section(_type);
 }
@@ -119,7 +130,7 @@ std::unique_ptr<ContentMemento> Widget::createMemento() {
 }
 
 void Widget::saveState(not_null<Memento*> memento) {
-	memento->setScrollTop(scrollTopSave());
+	controller()->saveSearchState(memento);
 	_inner->saveState(memento);
 }
 

Telegram/SourceFiles/info/media/info_media_widget.h

@@ -23,6 +23,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include <rpl/producer.h>
 #include "info/info_content_widget.h"
 #include "storage/storage_shared_media.h"
+#include "history/history_search_controller.h"
 
 namespace Ui {
 class SearchFieldController;
@@ -41,11 +42,9 @@ class InnerWidget;
 class Memento final : public ContentMemento {
 public:
 	Memento(not_null<Controller*> controller);
+	Memento(PeerId peerId, PeerId migratedPeerId, Type type);
 
-	Memento(PeerId peerId, PeerId migratedPeerId, Type type)
-	: ContentMemento(peerId, migratedPeerId)
-	, _type(type) {
-	}
+	using SearchState = Api::DelayedSearchController::SavedState;
 
 	object_ptr<ContentWidget> createWidget(
 		QWidget *parent,
@@ -82,13 +81,20 @@ public:
 	int scrollTopShift() const {
 		return _scrollTopShift;
 	}
+	void setSearchState(SearchState &&state) {
+		_searchState = std::move(state);
+	}
+	SearchState searchState() {
+		return std::move(_searchState);
+	}
 
 private:
 	Type _type = Type::Photo;
 	FullMsgId _aroundId;
 	int _idsLimit = 0;
 	FullMsgId _scrollTopItem;
-	int _scrollTopShift = 0;;
+	int _scrollTopShift = 0;
+	SearchState _searchState;
 
 };
 

Telegram/SourceFiles/ui/search_field_controller.cpp

@@ -29,6 +29,10 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 
 namespace Ui {
 
+SearchFieldController::SearchFieldController(const QString &query)
+: _query(query) {
+}
+
 base::unique_qptr<Ui::RpWidget> SearchFieldController::createRowView(
 		QWidget *parent,
 		const style::SearchFieldRow &st) {

Telegram/SourceFiles/ui/search_field_controller.h

@@ -36,6 +36,8 @@ class InputField;
 
 class SearchFieldController {
 public:
+	SearchFieldController(const QString &query);
+
 	base::unique_qptr<Ui::InputField> createField(
 		QWidget *parent,
 		const style::InputField &st);
@@ -43,6 +45,9 @@ public:
 		QWidget *parent,
 		const style::SearchFieldRow &st);
 
+	QString query() const {
+		return _query.current();
+	}
 	rpl::producer<QString> queryValue() const {
 		return _query.value();
 	}