From acbaf834426f07d56d8e06d0e0af404641a429ad Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Fri, 30 Sep 2016 21:10:54 +0300
Subject: [PATCH] Disabling playback seeking in new media player when loading
 audio.

---
 .../SourceFiles/media/player/media_player_cover.cpp  |  2 ++
 .../SourceFiles/media/view/media_clip_playback.h     |  3 +++
 Telegram/SourceFiles/ui/widgets/media_slider.cpp     | 12 ++++++++++--
 Telegram/SourceFiles/ui/widgets/media_slider.h       |  3 +++
 4 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/Telegram/SourceFiles/media/player/media_player_cover.cpp b/Telegram/SourceFiles/media/player/media_player_cover.cpp
index 4f50aa848..a2c6da7bd 100644
--- a/Telegram/SourceFiles/media/player/media_player_cover.cpp
+++ b/Telegram/SourceFiles/media/player/media_player_cover.cpp
@@ -195,10 +195,12 @@ void CoverWidget::updateTimeText(const AudioMsgId &audioId, const AudioPlaybackS
 	if (duration || !audioId.audio()->loading()) {
 		display = display / frequency;
 		_time = formatDurationText(display);
+		_playback->setDisabled(false);
 	} else {
 		auto loaded = audioId.audio()->loadOffset();
 		auto loadProgress = snap(float64(loaded) / qMax(audioId.audio()->size, 1), 0., 1.);
 		_time = QString::number(qRound(loadProgress * 100)) + '%';
+		_playback->setDisabled(true);
 	}
 	if (_seekPositionMs < 0) {
 		updateTimeLabel();
diff --git a/Telegram/SourceFiles/media/view/media_clip_playback.h b/Telegram/SourceFiles/media/view/media_clip_playback.h
index 2538a80be..32cb2ffe5 100644
--- a/Telegram/SourceFiles/media/view/media_clip_playback.h
+++ b/Telegram/SourceFiles/media/view/media_clip_playback.h
@@ -63,6 +63,9 @@ public:
 	void resize(int w, int h) {
 		_slider->resize(w, h);
 	}
+	void setDisabled(bool disabled) {
+		_slider->setDisabled(disabled);
+	}
 
 private:
 	Ui::MediaSlider *_slider;
diff --git a/Telegram/SourceFiles/ui/widgets/media_slider.cpp b/Telegram/SourceFiles/ui/widgets/media_slider.cpp
index 51d85cf5b..a4a3db825 100644
--- a/Telegram/SourceFiles/ui/widgets/media_slider.cpp
+++ b/Telegram/SourceFiles/ui/widgets/media_slider.cpp
@@ -35,6 +35,14 @@ float64 MediaSlider::value() const {
 	return a_value.current();
 }
 
+void MediaSlider::setDisabled(bool disabled) {
+	if (_disabled != disabled) {
+		_disabled = disabled;
+		setCursor(_disabled ? style::cur_default : style::cur_pointer);
+		update();
+	}
+}
+
 void MediaSlider::setValue(float64 value, bool animated) {
 	if (animated) {
 		a_value.start(value);
@@ -84,7 +92,7 @@ void MediaSlider::paintEvent(QPaintEvent *e) {
 	int skip = lineLeft();
 	int length = lineWidth();
 	float64 prg = _mouseDown ? _downValue : a_value.current();
-	int32 from = skip, mid = qRound(from + prg * length), end = from + length;
+	int32 from = skip, mid = _disabled ? 0 : qRound(from + prg * length), end = from + length;
 	if (mid > from) {
 		p.setClipRect(0, 0, mid, height());
 		p.setOpacity(_fadeOpacity * (over * _st.activeOpacity + (1. - over) * _st.inactiveOpacity));
@@ -97,7 +105,7 @@ void MediaSlider::paintEvent(QPaintEvent *e) {
 		p.setBrush(_st.inactiveFg);
 		p.drawRoundedRect(mid - radius, (height() - _st.width) / 2, end - (mid - radius), _st.width, radius, radius);
 	}
-	if (over > 0) {
+	if (!_disabled && over > 0) {
 		int x = mid - skip;
 		p.setClipRect(rect());
 		p.setOpacity(_fadeOpacity * _st.activeOpacity);
diff --git a/Telegram/SourceFiles/ui/widgets/media_slider.h b/Telegram/SourceFiles/ui/widgets/media_slider.h
index 27cf74278..3b4433c02 100644
--- a/Telegram/SourceFiles/ui/widgets/media_slider.h
+++ b/Telegram/SourceFiles/ui/widgets/media_slider.h
@@ -33,6 +33,7 @@ public:
 	float64 value() const;
 	void setValue(float64 value, bool animated);
 	void setFadeOpacity(float64 opacity);
+	void setDisabled(bool disabled);
 
 	using Callback = base::lambda_unique<void(float64)>;
 	void setChangeProgressCallback(Callback &&callback) {
@@ -60,6 +61,8 @@ private:
 
 	const style::MediaSlider &_st;
 
+	bool _disabled = false;
+
 	Callback _changeProgressCallback;
 	Callback _changeFinishedCallback;