Add support for checking if audio is played in a page.

Add support for checking if audio is played in a page, as well
as the ability to (un)mute the audio.

Modify demobrowser example to show (muted) in the tab title, if
the tab is muted, or (audible) if there is audio playing in the tab.
Fix HTML5 audio/video (un)mute to also work.

Change-Id: I7213645e67be2f9da1c5f96cdf6c7eef5341ae4b
Task-number: QTBUG-48788
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/src/webenginewidgets/api/qwebenginepage.h b/src/webenginewidgets/api/qwebenginepage.h
index b3c592708..7c9495199 100644
--- a/src/webenginewidgets/api/qwebenginepage.h
+++ b/src/webenginewidgets/api/qwebenginepage.h
@@ -72,6 +72,7 @@ class QWEBENGINEWIDGETS_EXPORT QWebEnginePage : public QObject {
     Q_PROPERTY(QColor backgroundColor READ backgroundColor WRITE setBackgroundColor)
     Q_PROPERTY(QSizeF contentsSize READ contentsSize NOTIFY contentsSizeChanged)
     Q_PROPERTY(QPointF scrollPosition READ scrollPosition NOTIFY scrollPositionChanged)
+    Q_PROPERTY(bool audioMuted READ isAudioMuted WRITE setAudioMuted NOTIFY audioMutedChanged)
 
 public:
     enum WebAction {
@@ -247,6 +248,10 @@ public:
     QColor backgroundColor() const;
     void setBackgroundColor(const QColor &color);
 
+    bool isAudioMuted() const;
+    void setAudioMuted(bool muted);
+    bool wasRecentlyAudible();
+
 Q_SIGNALS:
     void loadStarted();
     void loadProgress(int progress);
@@ -274,6 +279,8 @@ Q_SIGNALS:
 
     void scrollPositionChanged(const QPointF &position);
     void contentsSizeChanged(const QSizeF &size);
+    void audioMutedChanged(bool muted);
+    void wasRecentlyAudibleChanged(bool wasRecentlyAudible);
 
 protected:
     virtual QWebEnginePage *createWindow(WebWindowType type);