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Telegram/SourceFiles/chat_helpers/tabbed_panel.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 "ui/effects/animations.h"
+#include "ui/rp_widget.h"
+#include "base/timer.h"
+#include "base/object_ptr.h"
+
+namespace Window {
+class SessionController;
+} // namespace Window
+
+namespace Ui {
+class PanelAnimation;
+} // namespace Ui
+
+namespace ChatHelpers {
+
+class TabbedSelector;
+
+extern const char kOptionTabbedPanelShowOnClick[];
+[[nodiscard]] bool ShowPanelOnClick();
+
+struct TabbedPanelDescriptor {
+	Window::SessionController *regularWindow = nullptr;
+	object_ptr<TabbedSelector> ownedSelector = { nullptr };
+	TabbedSelector *nonOwnedSelector = nullptr;
+};
+
+class TabbedPanel : public Ui::RpWidget {
+public:
+	TabbedPanel(
+		QWidget *parent,
+		not_null<Window::SessionController*> controller,
+		not_null<TabbedSelector*> selector);
+	TabbedPanel(
+		QWidget *parent,
+		not_null<Window::SessionController*> controller,
+		object_ptr<TabbedSelector> selector);
+	TabbedPanel(QWidget *parent, TabbedPanelDescriptor &&descriptor);
+
+	[[nodiscard]] bool isSelectorStolen() const;
+	[[nodiscard]] not_null<TabbedSelector*> selector() const;
+	[[nodiscard]] rpl::producer<bool> pauseAnimations() const;
+
+	void moveBottomRight(int bottom, int right);
+	void moveTopRight(int top, int right);
+	void setDesiredHeightValues(
+		float64 ratio,
+		int minHeight,
+		int maxHeight);
+	void setDropDown(bool dropDown);
+
+	void hideFast();
+	bool hiding() const {
+		return _hiding || _hideTimer.isActive();
+	}
+
+	bool overlaps(const QRect &globalRect) const;
+
+	void showAnimated();
+	void hideAnimated();
+	void toggleAnimated();
+
+	~TabbedPanel();
+
+protected:
+	void enterEventHook(QEnterEvent *e) override;
+	void leaveEventHook(QEvent *e) override;
+	void otherEnter();
+	void otherLeave();
+
+	void paintEvent(QPaintEvent *e) override;
+	bool eventFilter(QObject *obj, QEvent *e) override;
+
+private:
+	void hideByTimerOrLeave();
+	void moveHorizontally();
+	void showFromSelector();
+
+	style::margins innerPadding() const;
+
+	// Rounded rect which has shadow around it.
+	QRect innerRect() const;
+
+	QImage grabForAnimation();
+	void startShowAnimation();
+	void startOpacityAnimation(bool hiding);
+	void prepareCacheFor(bool hiding);
+
+	void opacityAnimationCallback();
+
+	void hideFinished();
+	void showStarted();
+
+	bool preventAutoHide() const;
+	void updateContentHeight();
+
+	Window::SessionController * const _regularWindow = nullptr;
+	const object_ptr<TabbedSelector> _ownedSelector = { nullptr };
+	const not_null<TabbedSelector*> _selector;
+	rpl::event_stream<bool> _pauseAnimations;
+
+	int _contentMaxHeight = 0;
+	int _contentHeight = 0;
+	int _top = 0;
+	int _bottom = 0;
+	int _right = 0;
+	float64 _heightRatio = 1.;
+	int _minContentHeight = 0;
+	int _maxContentHeight = 0;
+
+	std::unique_ptr<Ui::PanelAnimation> _showAnimation;
+	Ui::Animations::Simple _a_show;
+
+	bool _shouldFinishHide = false;
+	bool _dropDown = false;
+
+	bool _hiding = false;
+	bool _hideAfterSlide = false;
+	QPixmap _cache;
+	Ui::Animations::Simple _a_opacity;
+	base::Timer _hideTimer;
+
+};
+
+} // namespace ChatHelpers