tdesktop/Telegram/SourceFiles/media/player/media_player_cover.cpp

394 lines
13 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#include "media/player/media_player_cover.h"
#include "ui/widgets/labels.h"
#include "ui/widgets/continuous_sliders.h"
#include "ui/widgets/buttons.h"
#include "media/media_audio.h"
#include "media/view/media_clip_playback.h"
#include "media/player/media_player_button.h"
#include "media/player/media_player_instance.h"
#include "media/player/media_player_volume_controller.h"
#include "styles/style_media_player.h"
#include "styles/style_mediaview.h"
namespace Media {
namespace Player {
using ButtonState = PlayButtonLayout::State;
class CoverWidget::PlayButton : public Ui::AbstractButton {
public:
PlayButton(QWidget *parent);
void setState(ButtonState state) {
_layout.setState(state);
}
void finishTransform() {
_layout.finishTransform();
}
protected:
void paintEvent(QPaintEvent *e) override;
private:
PlayButtonLayout _layout;
};
CoverWidget::PlayButton::PlayButton(QWidget *parent) : Ui::AbstractButton(parent)
, _layout(st::mediaPlayerPanelButton, [this] { update(); }) {
resize(st::mediaPlayerPanelButtonSize);
setCursor(style::cur_pointer);
}
void CoverWidget::PlayButton::paintEvent(QPaintEvent *e) {
Painter p(this);
p.translate(st::mediaPlayerPanelButtonPosition.x(), st::mediaPlayerPanelButtonPosition.y());
_layout.paint(p, st::mediaPlayerActiveFg);
}
CoverWidget::CoverWidget(QWidget *parent) : TWidget(parent)
, _nameLabel(this, st::mediaPlayerName)
, _timeLabel(this, st::mediaPlayerTime)
, _close(this, st::mediaPlayerPanelClose)
, _playbackSlider(this, st::mediaPlayerPanelPlayback)
, _playback(std::make_unique<Clip::Playback>())
, _playPause(this)
, _volumeToggle(this, st::mediaPlayerVolumeToggle)
, _volumeController(this)
, _pinPlayer(this, st::mediaPlayerPanelPinButton)
, _repeatTrack(this, st::mediaPlayerRepeatButton) {
setAttribute(Qt::WA_OpaquePaintEvent);
resize(width(), st::mediaPlayerCoverHeight);
_close->hide();
_nameLabel->setAttribute(Qt::WA_TransparentForMouseEvents);
_timeLabel->setAttribute(Qt::WA_TransparentForMouseEvents);
setMouseTracking(true);
_playback->setInLoadingStateChangedCallback([this](bool loading) {
_playbackSlider->setDisabled(loading);
});
_playback->setValueChangedCallback([this](float64 value) {
_playbackSlider->setValue(value);
});
_playbackSlider->setChangeProgressCallback([this](float64 value) {
handleSeekProgress(value);
_playback->setValue(value, false);
});
_playbackSlider->setChangeFinishedCallback([this](float64 value) {
handleSeekFinished(value);
_playback->setValue(value, false);
});
_playPause->setClickedCallback([this] {
instance()->playPauseCancelClicked(AudioMsgId::Type::Song);
});
updateRepeatTrackIcon();
_repeatTrack->setClickedCallback([this] {
instance()->toggleRepeat(AudioMsgId::Type::Song);
});
updateVolumeToggleIcon();
_volumeToggle->setClickedCallback([this]() {
Global::SetSongVolume((Global::SongVolume() > 0) ? 0. : Global::RememberedSongVolume());
mixer()->setSongVolume(Global::SongVolume());
Global::RefSongVolumeChanged().notify();
});
subscribe(Global::RefSongVolumeChanged(), [this] { updateVolumeToggleIcon(); });
subscribe(instance()->repeatChangedNotifier(), [this](AudioMsgId::Type type) {
if (type == AudioMsgId::Type::Song) {
updateRepeatTrackIcon();
}
});
subscribe(instance()->playlistChangedNotifier(), [this](AudioMsgId::Type type) {
if (type == AudioMsgId::Type::Song) {
handlePlaylistUpdate();
}
});
subscribe(instance()->updatedNotifier(), [this](const TrackState &state) {
if (state.id.type() == AudioMsgId::Type::Song) {
handleSongUpdate(state);
}
});
subscribe(instance()->trackChangedNotifier(), [this](AudioMsgId::Type type) {
if (type == AudioMsgId::Type::Song) {
handleSongChange();
}
});
handleSongChange();
handleSongUpdate(mixer()->currentState(AudioMsgId::Type::Song));
_playPause->finishTransform();
}
void CoverWidget::setPinCallback(ButtonCallback &&callback) {
_pinPlayer->setClickedCallback(std::move(callback));
}
void CoverWidget::setCloseCallback(ButtonCallback &&callback) {
_close->setClickedCallback(std::move(callback));
}
void CoverWidget::handleSeekProgress(float64 progress) {
if (!_lastDurationMs) return;
auto positionMs = snap(static_cast<TimeMs>(progress * _lastDurationMs), 0LL, _lastDurationMs);
if (_seekPositionMs != positionMs) {
_seekPositionMs = positionMs;
updateTimeLabel();
instance()->startSeeking(AudioMsgId::Type::Song);
}
}
void CoverWidget::handleSeekFinished(float64 progress) {
if (!_lastDurationMs) return;
auto positionMs = snap(static_cast<TimeMs>(progress * _lastDurationMs), 0LL, _lastDurationMs);
_seekPositionMs = -1;
auto type = AudioMsgId::Type::Song;
auto state = Media::Player::mixer()->currentState(type);
if (state.id && state.length) {
Media::Player::mixer()->seek(type, qRound(progress * state.length));
}
instance()->stopSeeking(type);
}
void CoverWidget::resizeEvent(QResizeEvent *e) {
auto widthForName = width() - 2 * (st::mediaPlayerPanelPadding);
widthForName -= _timeLabel->width() + 2 * st::normalFont->spacew;
_nameLabel->resizeToWidth(widthForName);
updateLabelPositions();
_close->moveToRight(0, 0);
int skip = (st::mediaPlayerPanelPlayback.seekSize.width() / 2);
int length = (width() - 2 * st::mediaPlayerPanelPadding + st::mediaPlayerPanelPlayback.seekSize.width());
_playbackSlider->setGeometry(st::mediaPlayerPanelPadding - skip, st::mediaPlayerPanelPlaybackTop, length, 2 * st::mediaPlayerPanelPlaybackPadding + st::mediaPlayerPanelPlayback.width);
auto top = st::mediaPlayerPanelVolumeToggleTop;
auto right = st::mediaPlayerPanelPlayLeft;
_repeatTrack->moveToRight(right, top); right += _repeatTrack->width();
_pinPlayer->moveToRight(right, top); right += _pinPlayer->width() + st::mediaPlayerPanelVolumeSkip;
_volumeController->moveToRight(right, st::mediaPlayerPanelVolumeTop); right += _volumeController->width() + st::mediaPlayerPanelVolumeToggleSkip;
_volumeToggle->moveToRight(right, top);
updatePlayPrevNextPositions();
}
void CoverWidget::paintEvent(QPaintEvent *e) {
Painter p(this);
p.fillRect(e->rect(), st::windowBg);
}
void CoverWidget::mouseMoveEvent(QMouseEvent *e) {
auto closeAreaLeft = st::mediaPlayerPanelPadding + _nameLabel->width();
auto closeAreaHeight = _nameLabel->y() + _nameLabel->height();
auto closeArea = myrtlrect(closeAreaLeft, 0, width() - closeAreaLeft, closeAreaHeight);
auto closeVisible = closeArea.contains(e->pos());
setCloseVisible(closeVisible);
}
void CoverWidget::leaveEventHook(QEvent *e) {
setCloseVisible(false);
}
void CoverWidget::setCloseVisible(bool visible) {
if (visible == _close->isHidden()) {
_close->setVisible(visible);
_timeLabel->setVisible(!visible);
}
}
void CoverWidget::updatePlayPrevNextPositions() {
auto left = st::mediaPlayerPanelPlayLeft;
auto top = st::mediaPlayerPanelPlayTop;
if (_previousTrack) {
_previousTrack->moveToLeft(left, top); left += _previousTrack->width() + st::mediaPlayerPanelPlaySkip;
_playPause->moveToLeft(left, top); left += _playPause->width() + st::mediaPlayerPanelPlaySkip;
_nextTrack->moveToLeft(left, top);
} else {
_playPause->moveToLeft(left, top);
}
}
void CoverWidget::updateLabelPositions() {
_nameLabel->moveToLeft(st::mediaPlayerPanelPadding, st::mediaPlayerPanelNameTop - st::mediaPlayerName.style.font->ascent);
_timeLabel->moveToRight(st::mediaPlayerPanelPadding, st::mediaPlayerPanelNameTop - st::mediaPlayerTime.font->ascent);
}
void CoverWidget::updateRepeatTrackIcon() {
_repeatTrack->setIconOverride(instance()->repeatEnabled(AudioMsgId::Type::Song) ? nullptr : &st::mediaPlayerRepeatInactiveIcon);
}
void CoverWidget::handleSongUpdate(const TrackState &state) {
if (!state.id.audio() || !state.id.audio()->song()) {
return;
}
if (state.id.audio()->loading()) {
_playback->updateLoadingState(state.id.audio()->progress());
} else {
_playback->updateState(state);
}
auto stopped = IsStoppedOrStopping(state.state);
auto showPause = !stopped && (state.state == State::Playing || state.state == State::Resuming || state.state == State::Starting);
if (instance()->isSeeking(AudioMsgId::Type::Song)) {
showPause = true;
}
auto buttonState = [audio = state.id.audio(), showPause] {
if (audio->loading()) {
return ButtonState::Cancel;
} else if (showPause) {
return ButtonState::Pause;
}
return ButtonState::Play;
};
_playPause->setState(buttonState());
updateTimeText(state);
}
void CoverWidget::updateTimeText(const TrackState &state) {
QString time;
qint64 position = 0, length = 0, display = 0;
auto frequency = state.frequency;
if (!IsStoppedOrStopping(state.state)) {
display = position = state.position;
length = state.length;
} else {
length = state.length ? state.length : (state.id.audio()->song()->duration * frequency);
}
_lastDurationMs = (state.length * 1000LL) / frequency;
if (state.id.audio()->loading()) {
_time = QString::number(qRound(state.id.audio()->progress() * 100)) + '%';
_playbackSlider->setDisabled(true);
} else {
display = display / frequency;
_time = formatDurationText(display);
_playbackSlider->setDisabled(false);
}
if (_seekPositionMs < 0) {
updateTimeLabel();
}
}
void CoverWidget::updateTimeLabel() {
auto timeLabelWidth = _timeLabel->width();
if (_seekPositionMs >= 0) {
auto playAlready = _seekPositionMs / 1000LL;
_timeLabel->setText(formatDurationText(playAlready));
} else {
_timeLabel->setText(_time);
}
if (timeLabelWidth != _timeLabel->width()) {
_nameLabel->resizeToWidth(width() - 2 * (st::mediaPlayerPanelPadding) - _timeLabel->width() - st::normalFont->spacew);
updateLabelPositions();
}
}
void CoverWidget::handleSongChange() {
auto current = instance()->current(AudioMsgId::Type::Song);
auto song = current.audio()->song();
if (!song) {
return;
}
TextWithEntities textWithEntities;
if (song->performer.isEmpty()) {
textWithEntities.text = song->title.isEmpty() ? (current.audio()->name.isEmpty() ? qsl("Unknown Track") : current.audio()->name) : song->title;
} else {
auto title = song->title.isEmpty() ? qsl("Unknown Track") : textClean(song->title);
textWithEntities.text = song->performer + QString::fromUtf8(" \xe2\x80\x93 ") + title;
textWithEntities.entities.append({ EntityInTextBold, 0, song->performer.size(), QString() });
}
_nameLabel->setMarkedText(textWithEntities);
handlePlaylistUpdate();
}
void CoverWidget::handlePlaylistUpdate() {
auto current = instance()->current(AudioMsgId::Type::Song);
auto playlist = instance()->playlist(AudioMsgId::Type::Song);
auto index = playlist.indexOf(current.contextId());
if (!current || index < 0) {
destroyPrevNextButtons();
} else {
createPrevNextButtons();
auto previousEnabled = (index > 0);
auto nextEnabled = (index + 1 < playlist.size());
_previousTrack->setIconOverride(previousEnabled ? nullptr : &st::mediaPlayerPanelPreviousDisabledIcon);
_previousTrack->setCursor(previousEnabled ? style::cur_pointer : style::cur_default);
_nextTrack->setIconOverride(nextEnabled ? nullptr : &st::mediaPlayerPanelNextDisabledIcon);
_nextTrack->setCursor(nextEnabled ? style::cur_pointer : style::cur_default);
}
}
void CoverWidget::createPrevNextButtons() {
if (!_previousTrack) {
_previousTrack.create(this, st::mediaPlayerPanelPreviousButton);
_previousTrack->show();
_previousTrack->setClickedCallback([this]() {
instance()->previous();
});
_nextTrack.create(this, st::mediaPlayerPanelNextButton);
_nextTrack->show();
_nextTrack->setClickedCallback([this]() {
instance()->next();
});
updatePlayPrevNextPositions();
}
}
void CoverWidget::destroyPrevNextButtons() {
if (_previousTrack) {
_previousTrack.destroy();
_nextTrack.destroy();
updatePlayPrevNextPositions();
}
}
void CoverWidget::updateVolumeToggleIcon() {
auto icon = []() -> const style::icon * {
auto volume = Global::SongVolume();
if (volume > 0) {
if (volume < 1 / 3.) {
return &st::mediaPlayerVolumeIcon1;
} else if (volume < 2 / 3.) {
return &st::mediaPlayerVolumeIcon2;
}
return &st::mediaPlayerVolumeIcon3;
}
return nullptr;
};
_volumeToggle->setIconOverride(icon());
}
} // namespace Player
} // namespace Media