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