init

Telegram/SourceFiles/ui/chat/choose_theme_controller.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
+
+class PeerData;
+
+namespace Window {
+class SessionController;
+} // namespace Window
+
+namespace Data {
+struct CloudTheme;
+} // namespace Data
+
+namespace Ui {
+
+class RpWidget;
+class PlainShadow;
+class VerticalLayout;
+
+class ChooseThemeController final {
+public:
+	ChooseThemeController(
+		not_null<RpWidget*> parent,
+		not_null<Window::SessionController*> window,
+		not_null<PeerData*> peer);
+	~ChooseThemeController();
+
+	[[nodiscard]] bool shouldBeShown() const;
+	[[nodiscard]] rpl::producer<bool> shouldBeShownValue() const;
+	[[nodiscard]] int height() const;
+
+	void hide();
+	void show();
+	void raise();
+	void setFocus();
+
+	[[nodiscard]] rpl::lifetime &lifetime();
+
+private:
+	struct Entry;
+
+	void init(rpl::producer<QSize> outer);
+	void initButtons();
+	void initList();
+	void fill(const std::vector<Data::CloudTheme> &themes);
+	void close();
+
+	void clearCurrentBackgroundState();
+	void paintEntry(QPainter &p, const Entry &entry);
+	void applyInitialInnerLeft();
+	void updateInnerLeft(int now);
+
+	[[nodiscard]] Entry *findChosen();
+	[[nodiscard]] const Entry *findChosen() const;
+
+	const not_null<Window::SessionController*> _controller;
+	const not_null<PeerData*> _peer;
+	const std::unique_ptr<VerticalLayout> _wrap;
+	const std::unique_ptr<PlainShadow> _topShadow;
+
+	const not_null<RpWidget*> _content;
+	const not_null<RpWidget*> _inner;
+	const EmojiPtr _disabledEmoji = nullptr;
+	std::vector<Entry> _entries;
+	QString _pressed;
+	rpl::variable<QString> _chosen;
+	std::optional<QPoint> _pressPosition;
+	std::optional<QPoint> _dragStartPosition;
+	int _dragStartInnerLeft = 0;
+	int _giftsFinishAt = 0;
+	bool _initialInnerLeftApplied = false;
+
+	rpl::variable<bool> _shouldBeShown = false;
+	rpl::variable<bool> _forceHidden = false;
+	rpl::variable<bool> _dark = false;
+	rpl::lifetime _cachingLifetime;
+
+};
+
+} // namespace Ui