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Telegram/SourceFiles/chat_helpers/gifs_list_widget.h

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+/*
+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 "chat_helpers/tabbed_selector.h"
+#include "base/timer.h"
+#include "inline_bots/inline_bot_layout_item.h"
+#include "layout/layout_mosaic.h"
+
+#include <QtCore/QTimer>
+
+namespace style {
+struct ComposeIcons;
+} // namespace style
+
+namespace Api {
+struct SendOptions;
+} // namespace Api
+
+namespace InlineBots {
+namespace Layout {
+class ItemBase;
+} // namespace Layout
+class Result;
+} // namespace InlineBots
+
+namespace Ui {
+class PopupMenu;
+class RoundButton;
+class TabbedSearch;
+} // namespace Ui
+
+namespace Window {
+class SessionController;
+} // namespace Window
+
+namespace SendMenu {
+struct Details;
+} // namespace SendMenu
+
+namespace Data {
+class StickersSet;
+} // namespace Data
+
+namespace ChatHelpers {
+
+void AddGifAction(
+	Fn<void(QString, Fn<void()> &&, const style::icon*)> callback,
+	std::shared_ptr<Show> show,
+	not_null<DocumentData*> document,
+	const style::ComposeIcons *iconsOverride = nullptr);
+
+class StickersListFooter;
+struct StickerIcon;
+struct GifSection;
+
+struct GifsListDescriptor {
+	std::shared_ptr<Show> show;
+	Fn<bool()> paused;
+	const style::EmojiPan *st = nullptr;
+};
+
+class GifsListWidget final
+	: public TabbedSelector::Inner
+	, public InlineBots::Layout::Context {
+public:
+	GifsListWidget(
+		QWidget *parent,
+		not_null<Window::SessionController*> controller,
+		PauseReason level);
+	GifsListWidget(QWidget *parent, GifsListDescriptor &&descriptor);
+
+	rpl::producer<FileChosen> fileChosen() const;
+	rpl::producer<PhotoChosen> photoChosen() const;
+	rpl::producer<InlineChosen> inlineResultChosen() const;
+
+	void refreshRecent() override;
+	void preloadImages() override;
+	void clearSelection() override;
+	object_ptr<TabbedSelector::InnerFooter> createFooter() override;
+
+	void inlineItemLayoutChanged(const InlineBots::Layout::ItemBase *layout) override;
+	void inlineItemRepaint(const InlineBots::Layout::ItemBase *layout) override;
+	bool inlineItemVisible(const InlineBots::Layout::ItemBase *layout) override;
+	Data::FileOrigin inlineItemFileOrigin() override;
+
+	void afterShown() override;
+	void beforeHiding() override;
+
+	void setInlineQueryPeer(PeerData *peer) {
+		_inlineQueryPeer = peer;
+	}
+	void searchForGifs(const QString &query);
+	void sendInlineRequest();
+
+	void cancelled();
+	rpl::producer<> cancelRequests() const;
+
+	base::unique_qptr<Ui::PopupMenu> fillContextMenu(
+		const SendMenu::Details &details) override;
+
+	~GifsListWidget();
+
+protected:
+	void visibleTopBottomUpdated(
+		int visibleTop,
+		int visibleBottom) override;
+
+	void mousePressEvent(QMouseEvent *e) override;
+	void mouseReleaseEvent(QMouseEvent *e) override;
+	void mouseMoveEvent(QMouseEvent *e) override;
+	void paintEvent(QPaintEvent *e) override;
+	void leaveEventHook(QEvent *e) override;
+	void leaveToChildEvent(QEvent *e, QWidget *child) override;
+	void enterFromChildEvent(QEvent *e, QWidget *child) override;
+
+	TabbedSelector::InnerFooter *getFooter() const override;
+	void processHideFinished() override;
+	void processPanelHideFinished() override;
+	int countDesiredHeight(int newWidth) override;
+
+private:
+	enum class Section {
+		Inlines,
+		Gifs,
+	};
+
+	using InlineResult = InlineBots::Result;
+	using InlineResults = std::vector<std::shared_ptr<InlineResult>>;
+	using LayoutItem = InlineBots::Layout::ItemBase;
+
+	struct InlineCacheEntry {
+		QString nextOffset;
+		InlineResults results;
+	};
+
+	void setupSearch();
+	void clearHeavyData();
+	void cancelGifsSearch();
+	void switchToSavedGifs();
+	void refreshSavedGifs();
+	int refreshInlineRows(const InlineCacheEntry *results, bool resultsDeleted);
+	void checkLoadMore();
+
+	int32 showInlineRows(bool newResults);
+	bool refreshInlineRows(int32 *added = 0);
+	void inlineResultsDone(const MTPmessages_BotResults &result);
+
+	void updateSelected();
+	void paintInlineItems(Painter &p, QRect clip);
+	void refreshIcons();
+	[[nodiscard]] std::vector<StickerIcon> fillIcons();
+
+	void updateInlineItems();
+	void repaintItems(crl::time now = 0);
+	void showPreview();
+
+	void clearInlineRows(bool resultsDeleted);
+	LayoutItem *layoutPrepareSavedGif(not_null<DocumentData*> document);
+	LayoutItem *layoutPrepareInlineResult(
+		std::shared_ptr<InlineResult> result);
+
+	void deleteUnusedGifLayouts();
+
+	void deleteUnusedInlineLayouts();
+
+	int validateExistingInlineRows(const InlineResults &results);
+	void selectInlineResult(
+		int index,
+		Api::SendOptions options,
+		bool forceSend = false,
+		TextWithTags caption = {});
+
+	const std::shared_ptr<Show> _show;
+	std::unique_ptr<Ui::TabbedSearch> _search;
+
+	MTP::Sender _api;
+
+	Section _section = Section::Gifs;
+	crl::time _lastScrolledAt = 0;
+	crl::time _lastUpdatedAt = 0;
+	base::Timer _updateInlineItems;
+	bool _inlineWithThumb = false;
+
+	std::map<
+		not_null<DocumentData*>,
+		std::unique_ptr<LayoutItem>> _gifLayouts;
+	std::map<
+		not_null<InlineResult*>,
+		std::unique_ptr<LayoutItem>> _inlineLayouts;
+
+	StickersListFooter *_footer = nullptr;
+	std::vector<GifSection> _sections;
+	base::flat_map<uint64, std::unique_ptr<Data::StickersSet>> _fakeSets;
+	uint64 _chosenSetId = 0;
+
+	Mosaic::Layout::MosaicLayout<LayoutItem> _mosaic;
+
+	int _selected = -1;
+	int _pressed = -1;
+	QPoint _lastMousePos;
+
+	base::Timer _previewTimer;
+	bool _previewShown = false;
+
+	std::map<QString, std::unique_ptr<InlineCacheEntry>> _inlineCache;
+	QTimer _inlineRequestTimer;
+
+	UserData *_searchBot = nullptr;
+	mtpRequestId _searchBotRequestId = 0;
+	PeerData *_inlineQueryPeer = nullptr;
+	QString _inlineQuery, _inlineNextQuery, _inlineNextOffset;
+	mtpRequestId _inlineRequestId = 0;
+
+	rpl::event_stream<FileChosen> _fileChosen;
+	rpl::event_stream<PhotoChosen> _photoChosen;
+	rpl::event_stream<InlineChosen> _inlineResultChosen;
+	rpl::event_stream<> _cancelled;
+
+};
+
+} // namespace ChatHelpers