From 3cf118604d0ed973ac4cad4499ac8bed8d000360 Mon Sep 17 00:00:00 2001
From: Luke Yelavich <luke.yelavich@canonical.com>
Date: Tue, 22 Feb 2011 11:32:51 +1100
Subject: Add accessible description support

---
 src/indicator-sound.c | 18 +++++++++++++++++-
 src/volume-widget.c   | 23 +++++++++++++++++++++--
 src/volume-widget.h   |  3 ++-
 3 files changed, 40 insertions(+), 4 deletions(-)

(limited to 'src')

diff --git a/src/indicator-sound.c b/src/indicator-sound.c
index 2466550..4980ab8 100644
--- a/src/indicator-sound.c
+++ b/src/indicator-sound.c
@@ -20,6 +20,7 @@ with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <math.h>
 #include <glib.h>
 #include <glib-object.h>
+#include <glib/gi18n.h>
 #include <gtk/gtk.h>
 #include <gdk/gdkkeysyms.h>
 #include <libdbusmenu-gtk/menu.h>
@@ -66,6 +67,7 @@ G_DEFINE_TYPE (IndicatorSound, indicator_sound, INDICATOR_OBJECT_TYPE);
 static GtkLabel * get_label (IndicatorObject * io);
 static GtkImage * get_icon (IndicatorObject * io);
 static GtkMenu *  get_menu (IndicatorObject * io);
+static const gchar * get_accessible_desc (IndicatorObject * io);
 static void indicator_sound_scroll (IndicatorObject* io,
                                     gint delta,
                                     IndicatorScrollDirection direction);
@@ -121,6 +123,7 @@ indicator_sound_class_init (IndicatorSoundClass *klass)
   io_class->get_label = get_label;
   io_class->get_image = get_icon;
   io_class->get_menu  = get_menu;
+  io_class->get_accessible_desc = get_accessible_desc;
   io_class->scroll    = indicator_sound_scroll;
 }
 
@@ -214,6 +217,19 @@ get_menu (IndicatorObject * io)
   return GTK_MENU(menu);
 }
 
+static const gchar *
+get_accessible_desc (IndicatorObject * io)
+{
+  IndicatorSoundPrivate* priv = INDICATOR_SOUND_GET_PRIVATE(io);
+
+  if (priv->volume_widget != NULL){
+    return g_strdup_printf(_("Volume (%'.0f%%)"), volume_widget_get_current_volume(priv->volume_widget));
+  }
+
+  return NULL;
+}
+
+
 static void
 connection_changed (IndicatorServiceManager * sm,
                     gboolean connected,
@@ -389,8 +405,8 @@ new_volume_slider_widget(DbusmenuMenuitem * newitem,
   g_return_val_if_fail(DBUSMENU_IS_MENUITEM(newitem), FALSE);
   g_return_val_if_fail(DBUSMENU_IS_GTKCLIENT(client), FALSE);
 
-  volume_widget = volume_widget_new (newitem);  
   io = g_object_get_data (G_OBJECT (client), "indicator");
+  volume_widget = volume_widget_new (newitem, io);
   IndicatorSoundPrivate* priv = INDICATOR_SOUND_GET_PRIVATE(INDICATOR_SOUND (io));
   priv->volume_widget = volume_widget;
 
diff --git a/src/volume-widget.c b/src/volume-widget.c
index ceebec5..be97994 100644
--- a/src/volume-widget.c
+++ b/src/volume-widget.c
@@ -37,6 +37,7 @@ struct _VolumeWidgetPrivate
   DbusmenuMenuitem* twin_item;  
   GtkWidget* ido_volume_slider;
   gboolean grabbed;
+  IndicatorObject* indicator;
 };
 
 #define VOLUME_WIDGET_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), VOLUME_WIDGET_TYPE, VolumeWidgetPrivate))
@@ -137,6 +138,14 @@ volume_widget_property_update( DbusmenuMenuitem* item, gchar* property,
       gdouble update = g_variant_get_double (value);
       //g_debug("volume-widget - update level with value %f", update);
       gtk_range_set_value(range, update);
+
+      GList *entry = indicator_object_get_entries(priv->indicator);
+      g_signal_emit(G_OBJECT(priv->indicator),
+                    INDICATOR_OBJECT_SIGNAL_ACCESSIBLE_DESC_UPDATE_ID,
+                    0,
+                    entry->data,
+                    TRUE);
+      g_list_free(entry);
     }
   }
 }
@@ -156,6 +165,14 @@ volume_widget_set_twin_item(VolumeWidget* self,
   GtkWidget *slider = ido_scale_menu_item_get_scale((IdoScaleMenuItem*)priv->ido_volume_slider);
   GtkRange *range = (GtkRange*)slider;
   gtk_range_set_value(range, initial_level);
+
+  GList *entry = indicator_object_get_entries(priv->indicator);
+  g_signal_emit(G_OBJECT(priv->indicator),
+                INDICATOR_OBJECT_SIGNAL_ACCESSIBLE_DESC_UPDATE_ID,
+                0,
+                entry->data,
+                TRUE);
+  g_list_free(entry);
 }
 
 static gboolean
@@ -251,10 +268,12 @@ volume_widget_get_current_volume ( GtkWidget *widget )
  * volume_widget_new:
  * @returns: a new #VolumeWidget.
  **/
-GtkWidget* 
-volume_widget_new(DbusmenuMenuitem *item)
+GtkWidget*
+volume_widget_new(DbusmenuMenuitem *item, IndicatorObject* io)
 {
   GtkWidget* widget = g_object_new(VOLUME_WIDGET_TYPE, NULL);
+  VolumeWidgetPrivate* priv = VOLUME_WIDGET_GET_PRIVATE(VOLUME_WIDGET(widget));
+  priv->indicator = io;
   volume_widget_set_twin_item((VolumeWidget*)widget, item);
   return widget;
 }
diff --git a/src/volume-widget.h b/src/volume-widget.h
index 072cfde..50ef377 100644
--- a/src/volume-widget.h
+++ b/src/volume-widget.h
@@ -22,6 +22,7 @@ with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <glib.h>
 #include <glib-object.h>
 #include <libdbusmenu-gtk/menuitem.h>
+#include <libindicator/indicator-object.h>
 
 G_BEGIN_DECLS
 
@@ -44,7 +45,7 @@ struct _VolumeWidget {
 };
 
 GType volume_widget_get_type (void) G_GNUC_CONST;
-GtkWidget* volume_widget_new(DbusmenuMenuitem* twin_item);
+GtkWidget* volume_widget_new(DbusmenuMenuitem *item, IndicatorObject* io);
 GtkWidget* volume_widget_get_ido_slider(VolumeWidget* self);
 void volume_widget_update(VolumeWidget* self, gdouble update);
 void volume_widget_tidy_up (GtkWidget *widget);
-- 
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