tdesktop/Telegram/SourceFiles/media/view/media_view_playback_progress.h

61 lines
1.5 KiB
C++

/*
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/widgets/continuous_sliders.h"
namespace Media {
namespace Player {
struct TrackState;
} // namespace Player
namespace View {
class PlaybackProgress {
public:
PlaybackProgress();
void setValueChangedCallback(Fn<void(float64,float64)> callback) {
_valueChanged = std::move(callback);
}
void setInLoadingStateChangedCallback(Fn<void(bool)> callback) {
_inLoadingStateChanged = std::move(callback);
}
void setValue(float64 value, bool animated);
float64 value() const;
void updateState(const Player::TrackState &state);
void updateLoadingState(float64 progress);
private:
bool valueAnimationCallback(float64 now);
bool receivedTillAnimationCallback(float64 now);
void setReceivedTill(float64 value);
void emitUpdatedValue();
// This can animate for a very long time (like in music playing),
// so it should be a Basic, not a Simple animation, because
// Simple-s pauses mtproto responses/updates handling while playing.
anim::value a_value, a_receivedTill;
Ui::Animations::Basic _a_value, _a_receivedTill;
Fn<void(float64,float64)> _valueChanged;
bool _inLoadingState = false;
Fn<void(bool)> _inLoadingStateChanged;
int64 _position = 0;
int64 _length = 0;
int64 _receivedTill = -1;
bool _playing = false;
};
} // namespace View
} // namespace Media