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

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17 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 "ui/widgets/menu/menu_item_base.h"
#include "ui/widgets/popup_menu.h"
#include "ui/text/format_values.h"
#include "ui/cached_round_corners.h"
#include "lang/lang_keys.h"
#include "styles/style_media_view.h"
namespace Media {
namespace View {
namespace {
constexpr auto kMinSpeed = 50;
constexpr auto kMaxSpeed = 200;
constexpr float64 SpeedShiftToValue(float64 value) {
const auto valueAsSpeedF = value * 100.;
const auto valueAsSpeed = int(valueAsSpeedF + 0.5); // constexpr round.
return float64(valueAsSpeed) / (kMaxSpeed - kMinSpeed);
};
constexpr float64 SpeedToValue(float64 value) {
const auto valueAsSpeedF = value * 100.;
const auto valueAsSpeed = int(valueAsSpeedF + 0.5); // constexpr round.
return float64(valueAsSpeed - kMinSpeed) / (kMaxSpeed - kMinSpeed);
};
constexpr auto kSpeedStickedValues =
std::array<std::pair<float64, float64>, 5>{{
{ SpeedToValue(0.75), SpeedShiftToValue(0.03) },
{ SpeedToValue(1.00), SpeedShiftToValue(0.05) },
{ SpeedToValue(1.25), SpeedShiftToValue(0.03) },
{ SpeedToValue(1.50), SpeedShiftToValue(0.03) },
{ SpeedToValue(1.75), SpeedShiftToValue(0.03) },
}};
class MenuSpeedItem final : public Ui::Menu::ItemBase {
public:
MenuSpeedItem(
not_null<RpWidget*> parent,
const style::Menu &st,
float64 startSpeed);
not_null<QAction*> action() const override;
bool isEnabled() const override;
[[nodiscard]] rpl::producer<float64> changeSpeedRequests() const;
protected:
int contentHeight() const override;
private:
float64 computeSpeed(float64 value) const;
QString speedString(float64 value) const;
QRect _itemRect;
QRect _textRect;
const style::MediaSlider &_sliderSt;
const base::unique_qptr<Ui::MediaSlider> _slider;
const not_null<QAction*> _dummyAction;
const int _lineCount;
const int _height;
rpl::event_stream<float64> _changeSpeedRequests;
};
MenuSpeedItem::MenuSpeedItem(
not_null<RpWidget*> parent,
const style::Menu &st,
float64 startSpeed)
: Ui::Menu::ItemBase(parent, st)
, _sliderSt(st::mediaviewPlayback)
, _slider(base::make_unique_q<Ui::MediaSlider>(
this,
_sliderSt))
, _dummyAction(new QAction(parent))
, _lineCount(std::ceil(st.itemStyle.font->width(speedString(0.9))
/ float(st.widthMax)))
, _height(st.itemPadding.top() * 2
+ st.itemStyle.font->height * _lineCount
+ _sliderSt.seekSize.height()
+ st.itemPadding.bottom() * 2) {
initResizeHook(parent->sizeValue());
enableMouseSelecting();
enableMouseSelecting(_slider.get());
_slider->setAlwaysDisplayMarker(true);
_slider->setValue((std::round(startSpeed * 100.) - kMinSpeed)
/ (kMaxSpeed - kMinSpeed));
for (const auto &sticked : kSpeedStickedValues) {
_slider->addDivider(sticked.first, st::speedSliderDividerSize);
}
//_slider->addDivider(
// kSpeedStickedValues[1].first,
// st::speedSliderDividerSize);
{
const auto goodWidth = st.itemPadding.left()
+ st.itemPadding.right()
+ st.itemStyle.font->width(speedString(0.9));
setMinWidth(std::clamp(goodWidth, st.widthMin, st.widthMax));
}
sizeValue(
) | rpl::start_with_next([=](const QSize &size) {
const auto geometry = QRect(QPoint(), size);
_itemRect = geometry - st.itemPadding;
const auto height = _itemRect.height();
const auto penWidth = QPen(st.itemBgOver).width();
_textRect = _itemRect
- style::margins(
-penWidth,
0,
-penWidth,
height - st.itemStyle.font->height * _lineCount);
const auto sliderGeometry = _itemRect
- style::margins(0, height - _sliderSt.seekSize.height(), 0, 0);
_slider->setGeometry(sliderGeometry);
}, lifetime());
paintRequest(
) | rpl::start_with_next([=](const QRect &clip) {
Painter p(this);
const auto selected = isSelected();
p.fillRect(clip, selected ? st.itemBgOver : st.itemBg);
const auto value = _slider->value();
p.setPen(selected ? st.itemFgOver : st.itemFg);
p.setFont(st.itemStyle.font);
p.drawText(_textRect, speedString(value), style::al_left);
}, lifetime());
_slider->setChangeProgressCallback([=](float64 value) {
update(_textRect);
});
_slider->setChangeFinishedCallback([=](float64 value) {
_changeSpeedRequests.fire_copy(computeSpeed(value));
});
_slider->setAdjustCallback([=](float64 value) {
for (const auto &snap : kSpeedStickedValues) {
if (value > (snap.first - snap.second)
&& value < (snap.first + snap.second)) {
return snap.first;
}
}
return value;
});
}
float64 MenuSpeedItem::computeSpeed(float64 value) const {
return anim::interpolate(kMinSpeed, kMaxSpeed, value) / 100.;
}
QString MenuSpeedItem::speedString(float64 value) const {
return tr::lng_mediaview_playback_speed(
tr::now,
lt_speed,
QString::number(computeSpeed(value), 'f', 2) + 'x');
}
not_null<QAction*> MenuSpeedItem::action() const {
return _dummyAction;
}
bool MenuSpeedItem::isEnabled() const {
return true;
}
int MenuSpeedItem::contentHeight() const {
return _height;
}
rpl::producer<float64> MenuSpeedItem::changeSpeedRequests() const {
return _changeSpeedRequests.events();
}
} // namespace
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>())
, _volumeToggle(this, st::mediaviewVolumeToggle)
, _volumeController(this, st::mediaviewPlayback)
, _menuToggle(this, st::mediaviewMenuToggle)
, _fullScreenToggle(this, st::mediaviewFullScreenButton)
, _pictureInPicture(this, st::mediaviewPipButton)
, _playedAlready(this, st::mediaviewPlayProgressLabel)
, _toPlayLeft(this, st::mediaviewPlayProgressLabel)
, _menuStyle(st::mediaviewControlsPopupMenu)
, _fadeAnimation(std::make_unique<Ui::FadeAnimation>(this)) {
_fadeAnimation->show();
_fadeAnimation->setFinishedCallback([=] {
fadeFinished();
});
_fadeAnimation->setUpdatedCallback([=](float64 opacity) {
fadeUpdated(opacity);
});
_pictureInPicture->addClickHandler([=] {
_delegate->playbackControlsToPictureInPicture();
});
_menuToggle->addClickHandler([=] {
showMenu();
});
_volumeController->setValue(_delegate->playbackControlsCurrentVolume());
_volumeController->setChangeProgressCallback([=](float64 value) {
_delegate->playbackControlsVolumeChanged(value);
updateVolumeToggleIcon();
});
_volumeController->setChangeFinishedCallback([=](float64) {
_delegate->playbackControlsVolumeChangeFinished();
});
updateVolumeToggleIcon();
_volumeToggle->setClickedCallback([=] {
_delegate->playbackControlsVolumeToggled();
_volumeController->setValue(_delegate->playbackControlsCurrentVolume());
updateVolumeToggleIcon();
});
_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 = std::clamp(
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 = std::clamp(
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::showMenu() {
if (_menu) {
_menu = nullptr;
return;
}
_menu.emplace(this, _menuStyle);
{
auto speedItem = base::make_unique_q<MenuSpeedItem>(
_menu,
_menuStyle.menu,
_delegate->playbackControlsCurrentSpeed());
speedItem->changeSpeedRequests(
) | rpl::start_with_next([=](float64 speed) {
updatePlaybackSpeed(speed);
}, speedItem->lifetime());
_menu->addAction(std::move(speedItem));
}
_menu->addSeparator();
_menu->addAction(tr::lng_mediaview_rotate_video(tr::now), [=] {
_delegate->playbackControlsRotate();
});
_menu->setForcedOrigin(Ui::PanelAnimation::Origin::BottomLeft);
_menu->popup(mapToGlobal(_menuToggle->geometry().topLeft()));
}
void PlaybackControls::updatePlaybackSpeed(float64 speed) {
DEBUG_LOG(("Media playback speed: update to %1.").arg(speed));
_delegate->playbackControlsSpeedChanged(speed);
resizeEvent(nullptr);
}
void PlaybackControls::updatePlayback(const Player::TrackState &state) {
updatePlayPauseResumeState(state);
_playbackProgress->updateState(state, countDownloadedTillPercent(state));
updateTimeTexts(state);
}
void PlaybackControls::updateVolumeToggleIcon() {
const auto volume = _delegate->playbackControlsCurrentVolume();
_volumeToggle->setIconOverride([&] {
return (volume <= 0.)
? nullptr
: (volume < 1 / 2.)
? &st::mediaviewVolumeIcon1
: &st::mediaviewVolumeIcon2;
}(), [&] {
return (volume <= 0.)
? nullptr
: (volume < 1 / 2.)
? &st::mediaviewVolumeIcon1Over
: &st::mediaviewVolumeIcon2Over;
}());
}
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(QString::number(percent) + '%');
updateDownloadProgressPosition();
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 = Ui::FormatDurationText(playAlready);
auto minus = QChar(8722);
_timeLeft = minus + Ui::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 = Ui::FormatDurationText(playAlready);
auto minus = QChar(8722);
timeLeft = minus + Ui::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) {
const auto textSkip = st::mediaviewPlayProgressSkip;
const auto textLeft = st::mediaviewPlayProgressLeft;
const auto textTop = st::mediaviewPlaybackTop + (_playbackSlider->height() - _playedAlready->height()) / 2;
_playedAlready->moveToLeft(textLeft + textSkip, textTop);
_toPlayLeft->moveToRight(textLeft + textSkip, textTop);
const auto remove = 2 * textLeft + 4 * textSkip + _playedAlready->width() + _toPlayLeft->width();
auto playbackWidth = width() - remove;
_playbackSlider->resize(playbackWidth, st::mediaviewPlayback.seekSize.height());
_playbackSlider->moveToLeft(textLeft + 2 * textSkip + _playedAlready->width(), st::mediaviewPlaybackTop);
_playPauseResume->moveToLeft(
(width() - _playPauseResume->width()) / 2,
st::mediaviewPlayButtonTop);
auto right = st::mediaviewMenuToggleSkip;
_menuToggle->moveToRight(right, st::mediaviewButtonsTop);
right += _menuToggle->width() + st::mediaviewPipButtonSkip;
_pictureInPicture->moveToRight(right, st::mediaviewButtonsTop);
right += _pictureInPicture->width() + st::mediaviewFullScreenButtonSkip;
_fullScreenToggle->moveToRight(right, st::mediaviewButtonsTop);
updateDownloadProgressPosition();
auto left = st::mediaviewVolumeToggleSkip;
_volumeToggle->moveToLeft(left, st::mediaviewVolumeTop);
left += _volumeToggle->width() + st::mediaviewVolumeSkip;
_volumeController->resize(
st::mediaviewVolumeWidth,
st::mediaviewPlayback.seekSize.height());
_volumeController->moveToLeft(left, st::mediaviewVolumeTop + (_volumeToggle->height() - _volumeController->height()) / 2);
}
void PlaybackControls::updateDownloadProgressPosition() {
if (!_downloadProgress) {
return;
}
const auto left = _playPauseResume->x() + _playPauseResume->width();
const auto right = _fullScreenToggle->x();
const auto available = right - left;
const auto x = left + (available - _downloadProgress->width()) / 2;
const auto y = _playPauseResume->y() + (_playPauseResume->height() - _downloadProgress->height()) / 2;
_downloadProgress->move(x, y);
}
void PlaybackControls::paintEvent(QPaintEvent *e) {
Painter p(this);
if (_fadeAnimation->paint(p)) {
return;
}
if (_childrenHidden) {
showChildren();
_playbackSlider->setFadeOpacity(1.);
_volumeController->setFadeOpacity(1.);
_childrenHidden = false;
}
Ui::FillRoundRect(p, rect(), st::mediaviewSaveMsgBg, Ui::MediaviewSaveCorners);
}
void PlaybackControls::mousePressEvent(QMouseEvent *e) {
e->accept(); // Don't pass event to the Media::View::OverlayWidget.
}
bool PlaybackControls::hasMenu() const {
return _menu != nullptr;
}
PlaybackControls::~PlaybackControls() = default;
} // namespace View
} // namespace Media