[gtk/active-media-controls: 2/3] mediacontrols: Add an active property

[Matthias Clasen <matthiasc src gnome org>]

commit a3035b0397ee87cb0a5ecb3bb9494eefbb40b02a
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Apr 28 01:16:18 2020 -0400

    mediacontrols: Add an active property
    
    Currently, this just forwards the volume buttons
    active property. It will be used to prevent the
    controls from being hidden while the user interacts
    with them.

 gtk/gtkmediacontrols.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
---
diff --git a/gtk/gtkmediacontrols.c b/gtk/gtkmediacontrols.c
index 526c2fb380..3eed5e6bc9 100644
--- a/gtk/gtkmediacontrols.c
+++ b/gtk/gtkmediacontrols.c
@@ -51,12 +51,14 @@ struct _GtkMediaControls
   GtkWidget *time_label;
   GtkWidget *seek_scale;
   GtkWidget *duration_label;
+  GtkWidget *volume_button;
 };
 
 enum
 {
   PROP_0,
   PROP_MEDIA_STREAM,
+  PROP_ACTIVE,
 
   N_PROPS
 };
@@ -226,6 +228,14 @@ gtk_media_controls_get_property (GObject    *object,
       g_value_set_object (value, controls->stream);
       break;
 
+    case PROP_ACTIVE:
+      {
+        gboolean active;
+        g_object_get (controls->volume_button, "active", &active, NULL);
+        g_value_set_boolean (value, active);
+      }
+      break;
+
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
       break;
@@ -279,6 +289,13 @@ gtk_media_controls_class_init (GtkMediaControlsClass *klass)
                          GTK_TYPE_MEDIA_STREAM,
                          G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
+  properties[PROP_ACTIVE] =
+    g_param_spec_boolean ("active",
+                          P_("Active"),
+                          P_("Active"),
+                          FALSE,
+                          G_PARAM_READABLE);
+
   g_object_class_install_properties (gobject_class, N_PROPS, properties);
 
   gtk_widget_class_set_template_from_resource (widget_class, "/org/gtk/libgtk/ui/gtkmediacontrols.ui");
@@ -290,6 +307,7 @@ gtk_media_controls_class_init (GtkMediaControlsClass *klass)
   gtk_widget_class_bind_template_child (widget_class, GtkMediaControls, time_label);
   gtk_widget_class_bind_template_child (widget_class, GtkMediaControls, seek_scale);
   gtk_widget_class_bind_template_child (widget_class, GtkMediaControls, duration_label);
+  gtk_widget_class_bind_template_child (widget_class, GtkMediaControls, volume_button);
 
   gtk_widget_class_bind_template_callback (widget_class, play_button_clicked);
   gtk_widget_class_bind_template_callback (widget_class, time_adjustment_changed);
@@ -298,10 +316,20 @@ gtk_media_controls_class_init (GtkMediaControlsClass *klass)
   gtk_widget_class_set_css_name (widget_class, I_("controls"));
 }
 
+static void
+notify_active (GObject    *object,
+               GParamSpec *pspec,
+               GObject    *controls)
+{
+  g_object_notify (controls, "active");
+}
+
 static void
 gtk_media_controls_init (GtkMediaControls *controls)
 {
   gtk_widget_init_template (GTK_WIDGET (controls));
+  g_signal_connect (controls->volume_button, "notify::active",
+                    G_CALLBACK (notify_active), controls);
 }
 
 /**