tdesktop/Telegram/SourceFiles/media/view/media_view_playback_control...

323 lines
9.9 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
*/
#include "media/view/media_view_playback_controls.h"
#include "media/audio/media_audio.h"
#include "media/view/media_view_playback_progress.h"
#include "ui/widgets/labels.h"
#include "ui/widgets/continuous_sliders.h"
#include "ui/effects/fade_animation.h"
#include "ui/widgets/buttons.h"
#include "lang/lang_keys.h"
#include "layout.h"
#include "app.h"
#include "styles/style_mediaview.h"
namespace Media {
namespace View {
PlaybackControls::PlaybackControls(
QWidget *parent,
not_null<Delegate*> delegate)
: RpWidget(parent)
, _delegate(delegate)
, _playPauseResume(this, st::mediaviewPlayButton)
, _playbackSlider(this, st::mediaviewPlayback)
, _playbackProgress(std::make_unique<PlaybackProgress>())
, _volumeController(this, st::mediaviewPlayback)
, _fullScreenToggle(this, st::mediaviewFullScreenButton)
, _playedAlready(this, st::mediaviewPlayProgressLabel)
, _toPlayLeft(this, st::mediaviewPlayProgressLabel)
, _fadeAnimation(std::make_unique<Ui::FadeAnimation>(this)) {
_fadeAnimation->show();
_fadeAnimation->setFinishedCallback([=] {
fadeFinished();
});
_fadeAnimation->setUpdatedCallback([=](float64 opacity) {
fadeUpdated(opacity);
});
_volumeController->setValue(_delegate->playbackControlsCurrentVolume());
_volumeController->setChangeProgressCallback([=](float64 value) {
_delegate->playbackControlsVolumeChanged(value);
});
_playPauseResume->addClickHandler([=] {
if (_showPause) {
_delegate->playbackControlsPause();
} else {
_delegate->playbackControlsPlay();
}
});
_fullScreenToggle->addClickHandler([=] {
if (_inFullScreen) {
_delegate->playbackControlsFromFullScreen();
} else {
_delegate->playbackControlsToFullScreen();
}
});
_playbackProgress->setValueChangedCallback([=](
float64 value,
float64 receivedTill) {
_playbackSlider->setValue(value, receivedTill);
});
_playbackSlider->setChangeProgressCallback([=](float64 value) {
_playbackProgress->setValue(value, false);
// This may destroy PlaybackControls.
handleSeekProgress(value);
});
_playbackSlider->setChangeFinishedCallback([=](float64 value) {
_playbackProgress->setValue(value, false);
handleSeekFinished(value);
});
}
void PlaybackControls::handleSeekProgress(float64 progress) {
if (!_lastDurationMs) return;
const auto positionMs = snap(
static_cast<crl::time>(progress * _lastDurationMs),
crl::time(0),
_lastDurationMs);
if (_seekPositionMs != positionMs) {
_seekPositionMs = positionMs;
refreshTimeTexts();
// This may destroy PlaybackControls.
_delegate->playbackControlsSeekProgress(positionMs);
}
}
void PlaybackControls::handleSeekFinished(float64 progress) {
if (!_lastDurationMs) return;
const auto positionMs = snap(
static_cast<crl::time>(progress * _lastDurationMs),
crl::time(0),
_lastDurationMs);
_seekPositionMs = -1;
_delegate->playbackControlsSeekFinished(positionMs);
refreshTimeTexts();
}
template <typename Callback>
void PlaybackControls::startFading(Callback start) {
if (!_fadeAnimation->animating()) {
showChildren();
_playbackSlider->disablePaint(true);
_volumeController->disablePaint(true);
_childrenHidden = false;
}
start();
if (_fadeAnimation->animating()) {
for (const auto child : children()) {
if (child->isWidgetType()
&& child != _playbackSlider
&& child != _volumeController) {
static_cast<QWidget*>(child)->hide();
}
}
_childrenHidden = true;
} else {
fadeFinished();
}
_playbackSlider->disablePaint(false);
_volumeController->disablePaint(false);
}
void PlaybackControls::showAnimated() {
startFading([this]() {
_fadeAnimation->fadeIn(st::mediaviewShowDuration);
});
}
void PlaybackControls::hideAnimated() {
startFading([this]() {
_fadeAnimation->fadeOut(st::mediaviewHideDuration);
});
}
void PlaybackControls::fadeFinished() {
fadeUpdated(_fadeAnimation->visible() ? 1. : 0.);
}
void PlaybackControls::fadeUpdated(float64 opacity) {
_playbackSlider->setFadeOpacity(opacity);
_volumeController->setFadeOpacity(opacity);
}
void PlaybackControls::updatePlayback(const Player::TrackState &state) {
updatePlayPauseResumeState(state);
_playbackProgress->updateState(state, countDownloadedTillPercent(state));
updateTimeTexts(state);
}
float64 PlaybackControls::countDownloadedTillPercent(
const Player::TrackState &state) const {
if (_loadingReady > 0 && _loadingReady == _loadingTotal) {
return 1.;
}
const auto header = state.fileHeaderSize;
if (!header || _loadingReady <= header || _loadingTotal <= header) {
return 0.;
}
return (_loadingReady - header) / float64(_loadingTotal - header);
}
void PlaybackControls::setLoadingProgress(int ready, int total) {
if (_loadingReady == ready && _loadingTotal == total) {
return;
}
_loadingReady = ready;
_loadingTotal = total;
if (_loadingReady != 0 && _loadingReady != _loadingTotal) {
if (!_downloadProgress) {
_downloadProgress.create(this, st::mediaviewPlayProgressLabel);
_downloadProgress->setVisible(!_fadeAnimation->animating());
_loadingPercent = -1;
}
const auto progress = total ? (ready / float64(total)) : 0.;
const auto percent = int(std::round(progress * 100));
if (_loadingPercent != percent) {
_loadingPercent = percent;
_downloadProgress->setText(tr::lng_mediaview_video_loading(
tr::now,
lt_percent,
QString::number(percent) + '%'));
if (_playbackSlider->width() > _downloadProgress->width()) {
const auto left = (_playbackSlider->width() - _downloadProgress->width()) / 2;
_downloadProgress->move(_playbackSlider->x() + left, st::mediaviewPlayProgressTop);
}
refreshFadeCache();
}
} else {
_downloadProgress.destroy();
}
}
void PlaybackControls::refreshFadeCache() {
if (!_fadeAnimation->animating()) {
return;
}
startFading([&] {
_fadeAnimation->refreshCache();
});
}
void PlaybackControls::updatePlayPauseResumeState(const Player::TrackState &state) {
auto showPause = ShowPauseIcon(state.state) || (_seekPositionMs >= 0);
if (showPause != _showPause) {
_showPause = showPause;
_playPauseResume->setIconOverride(_showPause ? &st::mediaviewPauseIcon : nullptr, _showPause ? &st::mediaviewPauseIconOver : nullptr);
}
}
void PlaybackControls::updateTimeTexts(const Player::TrackState &state) {
qint64 position = 0, length = state.length;
if (Player::IsStoppedAtEnd(state.state)) {
position = state.length;
} else if (!Player::IsStoppedOrStopping(state.state)) {
position = state.position;
} else {
position = 0;
}
auto playFrequency = state.frequency;
auto playAlready = position / playFrequency;
auto playLeft = (state.length / playFrequency) - playAlready;
_lastDurationMs = (state.length * crl::time(1000)) / playFrequency;
_timeAlready = formatDurationText(playAlready);
auto minus = QChar(8722);
_timeLeft = minus + formatDurationText(playLeft);
if (_seekPositionMs < 0) {
refreshTimeTexts();
}
}
void PlaybackControls::refreshTimeTexts() {
auto alreadyChanged = false, leftChanged = false;
auto timeAlready = _timeAlready;
auto timeLeft = _timeLeft;
if (_seekPositionMs >= 0) {
auto playAlready = _seekPositionMs / crl::time(1000);
auto playLeft = (_lastDurationMs / crl::time(1000)) - playAlready;
timeAlready = formatDurationText(playAlready);
auto minus = QChar(8722);
timeLeft = minus + formatDurationText(playLeft);
}
_playedAlready->setText(timeAlready, &alreadyChanged);
_toPlayLeft->setText(timeLeft, &leftChanged);
if (alreadyChanged || leftChanged) {
resizeEvent(nullptr);
refreshFadeCache();
}
}
void PlaybackControls::setInFullScreen(bool inFullScreen) {
if (_inFullScreen != inFullScreen) {
_inFullScreen = inFullScreen;
_fullScreenToggle->setIconOverride(
_inFullScreen ? &st::mediaviewFullScreenOutIcon : nullptr,
_inFullScreen ? &st::mediaviewFullScreenOutIconOver : nullptr);
}
}
void PlaybackControls::resizeEvent(QResizeEvent *e) {
int playTop = (height() - _playPauseResume->height()) / 2;
_playPauseResume->moveToLeft(st::mediaviewPlayPauseLeft, playTop);
int fullScreenTop = (height() - _fullScreenToggle->height()) / 2;
_fullScreenToggle->moveToRight(st::mediaviewFullScreenLeft, fullScreenTop);
_volumeController->resize(st::mediaviewVolumeWidth, st::mediaviewPlayback.seekSize.height());
_volumeController->moveToRight(st::mediaviewFullScreenLeft + _fullScreenToggle->width() + st::mediaviewVolumeLeft, st::mediaviewPlaybackTop);
auto playbackWidth = width() - st::mediaviewPlayPauseLeft - _playPauseResume->width() - playTop - fullScreenTop - _volumeController->width() - st::mediaviewVolumeLeft - _fullScreenToggle->width() - st::mediaviewFullScreenLeft;
_playbackSlider->resize(playbackWidth, st::mediaviewPlayback.seekSize.height());
_playbackSlider->moveToLeft(st::mediaviewPlayPauseLeft + _playPauseResume->width() + playTop, st::mediaviewPlaybackTop);
_playedAlready->moveToLeft(st::mediaviewPlayPauseLeft + _playPauseResume->width() + playTop, st::mediaviewPlayProgressTop);
_toPlayLeft->moveToRight(width() - (st::mediaviewPlayPauseLeft + _playPauseResume->width() + playTop) - playbackWidth, st::mediaviewPlayProgressTop);
if (_downloadProgress) {
const auto left = (_playbackSlider->width() - _downloadProgress->width()) / 2;
_downloadProgress->move(_playbackSlider->x() + left, st::mediaviewPlayProgressTop);
}
}
void PlaybackControls::paintEvent(QPaintEvent *e) {
Painter p(this);
if (_fadeAnimation->paint(p)) {
return;
}
if (_childrenHidden) {
showChildren();
_playbackSlider->setFadeOpacity(1.);
_volumeController->setFadeOpacity(1.);
_childrenHidden = false;
}
App::roundRect(p, rect(), st::mediaviewSaveMsgBg, MediaviewSaveCorners);
}
void PlaybackControls::mousePressEvent(QMouseEvent *e) {
e->accept(); // Don't pass event to the Media::View::OverlayWidget.
}
PlaybackControls::~PlaybackControls() = default;
} // namespace View
} // namespace Media