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Telegram/SourceFiles/window/window_connecting_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 "base/timer.h"
+#include "base/unique_qptr.h"
+#include "ui/effects/animations.h"
+
+namespace Ui {
+class RpWidget;
+} // namespace Ui
+
+namespace Main {
+class Account;
+} // namespace Main
+
+namespace Window {
+
+class ConnectionState {
+public:
+	ConnectionState(
+		not_null<Ui::RpWidget*> parent,
+		not_null<Main::Account*> account,
+		rpl::producer<bool> shown);
+
+	void raise();
+	void setForceHidden(bool hidden);
+	void setBottomSkip(int skip);
+
+	rpl::lifetime &lifetime() {
+		return _lifetime;
+	}
+
+private:
+	class Widget;
+	struct State {
+		enum class Type {
+			Connected,
+			Connecting,
+			Waiting,
+		};
+		Type type = Type::Connected;
+		bool useProxy = false;
+		bool exposed = false;
+		bool underCursor = false;
+		bool updateReady = false;
+		int waitTillRetry = 0;
+
+		bool operator==(const State &other) const;
+
+	};
+	struct Layout {
+		bool visible = false;
+		bool hasRetry = false;
+		bool proxyEnabled = false;
+		bool progressShown = false;
+		int contentWidth = 0;
+		QString text;
+		int textWidth = 0;
+
+	};
+
+	void createWidget();
+	void finishAnimating();
+	void refreshState();
+	void applyState(const State &state);
+	void changeVisibilityWithLayout(const Layout &layout);
+	Layout computeLayout(const State &state) const;
+	void setLayout(const Layout &layout);
+	float64 currentVisibility() const;
+	rpl::producer<float64> visibility() const;
+	void updateWidth();
+	void updateVisibility();
+	void refreshProgressVisibility();
+
+	const not_null<Main::Account*> _account;
+	not_null<Ui::RpWidget*> _parent;
+	rpl::variable<int> _bottomSkip;
+	base::unique_qptr<Widget> _widget;
+	bool _forceHidden = false;
+	base::Timer _refreshTimer;
+	State _state;
+	Layout _currentLayout;
+	crl::time _connectingStartedAt = 0;
+	Ui::Animations::Simple _contentWidth;
+	Ui::Animations::Simple _visibility;
+
+	rpl::event_stream<float64> _visibilityValues;
+	rpl::lifetime _lifetime;
+
+};
+
+} // namespace Window