[gtk/video-stop] video: Stop playing when appropriate

[Matthias Clasen <matthiasc src gnome org>]

commit 29afe5a688f8ce7c56bcc0b6295dee21fdee28cd
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Jan 1 15:07:25 2021 -0500

    video: Stop playing when appropriate
    
    When the widget gets unrealized or hidden, pause
    the mediastream. Otherwise, audio might keep playing
    unexpectedly.

 gtk/gtkvideo.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkvideo.c b/gtk/gtkvideo.c
index d2cb23321a..5f3293ba64 100644
--- a/gtk/gtkvideo.c
+++ b/gtk/gtkvideo.c
@@ -131,6 +131,9 @@ gtk_video_unrealize (GtkWidget *widget)
 {
   GtkVideo *self = GTK_VIDEO (widget);
 
+  if (self->autoplay && self->media_stream)
+    gtk_media_stream_pause (self->media_stream);
+
   if (self->media_stream)
     {
       GdkSurface *surface;
@@ -165,11 +168,20 @@ gtk_video_unmap (GtkWidget *widget)
       gtk_revealer_set_reveal_child (GTK_REVEALER (self->controls_revealer), FALSE);
     }
 
-  /* XXX: pause video here? */
-
   GTK_WIDGET_CLASS (gtk_video_parent_class)->unmap (widget);
 }
 
+static void
+gtk_video_hide (GtkWidget *widget)
+{
+  GtkVideo *self = GTK_VIDEO (widget);
+
+  if (self->autoplay && self->media_stream)
+    gtk_media_stream_pause (self->media_stream);
+
+  GTK_WIDGET_CLASS (gtk_video_parent_class)->hide (widget);
+}
+
 static void
 gtk_video_set_focus_child (GtkWidget *widget,
                            GtkWidget *child)
@@ -268,6 +280,7 @@ gtk_video_class_init (GtkVideoClass *klass)
   widget_class->unrealize = gtk_video_unrealize;
   widget_class->map = gtk_video_map;
   widget_class->unmap = gtk_video_unmap;
+  widget_class->hide = gtk_video_hide;
   widget_class->set_focus_child = gtk_video_set_focus_child;
 
   gobject_class->dispose = gtk_video_dispose;