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, 33 insertions, 0 deletions

diff --git a/src/webengine/api/qquickwebengineview.cpp b/src/webengine/api/qquickwebengineview.cpp
index b9fa3d605..7b0ed0a33 100644
--- a/src/webengine/api/qquickwebengineview.cpp
+++ b/src/webengine/api/qquickwebengineview.cpp
@@ -392,6 +392,12 @@ void QQuickWebEngineViewPrivate::didUpdateTargetURL(const QUrl &hoveredUrl)
     Q_EMIT q->linkHovered(hoveredUrl);
 }
 
+void QQuickWebEngineViewPrivate::wasRecentlyAudibleChanged(bool wasRecentlyAudible)
+{
+    Q_Q(QQuickWebEngineView);
+    Q_EMIT q->wasRecentlyAudibleChanged(wasRecentlyAudible);
+}
+
 QRectF QQuickWebEngineViewPrivate::viewportRect() const
 {
     Q_Q(const QQuickWebEngineView);
@@ -1084,6 +1090,33 @@ void QQuickWebEngineView::setBackgroundColor(const QColor &color)
     emit backgroundColorChanged();
 }
 
+/*!
+    \property QQuickWebEngineView::audioMuted
+    \brief the state of whether the current page audio is muted.
+    \since 5.7
+
+    The default value is false.
+*/
+bool QQuickWebEngineView::isAudioMuted() const {
+    const Q_D(QQuickWebEngineView);
+    return d->adapter->isAudioMuted();
+
+}
+void QQuickWebEngineView::setAudioMuted(bool muted) {
+    Q_D(QQuickWebEngineView);
+    bool _isAudioMuted = isAudioMuted();
+    d->adapter->setAudioMuted(muted);
+    if (_isAudioMuted != muted) {
+        Q_EMIT audioMutedChanged(muted);
+    }
+}
+
+bool QQuickWebEngineView::wasRecentlyAudible()
+{
+    Q_D(QQuickWebEngineView);
+    return d->adapter->wasRecentlyAudible();
+}
+
 bool QQuickWebEngineView::isFullScreen() const
 {
     Q_D(const QQuickWebEngineView);