tdesktop/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;
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} // 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();
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[[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();
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void clearCurrentBackgroundState();
void paintEntry(QPainter &p, const Entry &entry);
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void applyInitialInnerLeft();
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void updateInnerLeft(int now);
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[[nodiscard]] Entry *findChosen();
[[nodiscard]] const Entry *findChosen() const;
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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;
std::vector<Entry> _entries;
QString _pressed;
QString _chosen;
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std::optional<QPoint> _pressPosition;
std::optional<QPoint> _dragStartPosition;
int _dragStartInnerLeft = 0;
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bool _initialInnerLeftApplied = false;
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rpl::variable<bool> _shouldBeShown = false;
rpl::variable<bool> _forceHidden = false;
rpl::variable<bool> _dark = false;
rpl::lifetime _cachingLifetime;
};
} // namespace Ui