Add accessible descriptions to tiles

We use the app summary as the accessible description for each
tile. That way, all the information thats visible on the screen
is also available in accessible form.

https://bugzilla.gnome.org/show_bug.cgi?id=708489

src/gs-app-tile.c

@@ -61,6 +61,8 @@ app_state_changed (GsApp *app, GParamSpec *pspec, GsAppTile *tile)
 {
         GsAppTilePrivate *priv;
         AtkObject *accessible;
+	gchar *name;
+	gboolean installed;
 
         priv = gs_app_tile_get_instance_private (tile);
         accessible = gtk_widget_get_accessible (priv->button);
@@ -70,24 +72,25 @@ app_state_changed (GsApp *app, GParamSpec *pspec, GsAppTile *tile)
         case GS_APP_STATE_INSTALLING:
         case GS_APP_STATE_REMOVING:
         case GS_APP_STATE_UPDATABLE:
-                gtk_widget_show (priv->eventbox);
-                if (GTK_IS_ACCESSIBLE (accessible)) {
-                        gchar *name;
-                        name = g_strdup_printf ("%s (%s)",
-                                                gs_app_get_name (app),
-                                                _("Installed"));
-                        atk_object_set_name (accessible, name);
-                        g_free (name);
-                }
+		installed = TRUE;
+		name = g_strdup_printf ("%s (%s)",
+					gs_app_get_name (app),
+					_("Installed"));
                 break;
         case GS_APP_STATE_AVAILABLE:
         default:
-                gtk_widget_hide (priv->eventbox);
-                if (GTK_IS_ACCESSIBLE (accessible)) {
-                        atk_object_set_name (accessible, gs_app_get_name (app));
-                }
+		installed = FALSE;
+		name = g_strdup (gs_app_get_name (app));
                 break;
         }
+
+	gtk_widget_set_visible (priv->eventbox, installed);
+
+	if (GTK_IS_ACCESSIBLE (accessible)) {
+		atk_object_set_name (accessible, name);
+		atk_object_set_description (accessible, gs_app_get_summary (app));
+	}
+	g_free (name);
 }
 
 void

src/gs-feature-tile.c

@@ -56,6 +56,38 @@ gs_feature_tile_get_app (GsFeatureTile *tile)
 	return priv->app;
 }
 
+static void
+app_state_changed (GsApp *app, GParamSpec *pspec, GsFeatureTile *tile)
+{
+        GsFeatureTilePrivate *priv;
+        AtkObject *accessible;
+        gchar *name;
+
+        priv = gs_feature_tile_get_instance_private (tile);
+        accessible = gtk_widget_get_accessible (priv->button);
+
+        switch (gs_app_get_state (app)) {
+        case GS_APP_STATE_INSTALLED:
+        case GS_APP_STATE_INSTALLING:
+        case GS_APP_STATE_REMOVING:
+        case GS_APP_STATE_UPDATABLE:
+                name = g_strdup_printf ("%s (%s)",
+                                        gs_app_get_name (app),
+                                        _("Installed"));
+                break;
+        case GS_APP_STATE_AVAILABLE:
+        default:
+                name = g_strdup (gs_app_get_name (app));
+                break;
+        }
+
+        if (GTK_IS_ACCESSIBLE (accessible)) {
+                atk_object_set_name (accessible, name);
+                atk_object_set_description (accessible, gs_app_get_summary (app));
+        }
+        g_free (name);
+}
+
 void
 gs_feature_tile_set_app (GsFeatureTile *tile, GsApp *app)
 {
@@ -70,6 +102,10 @@ gs_feature_tile_set_app (GsFeatureTile *tile, GsApp *app)
 	g_clear_object (&priv->app);
 	priv->app = g_object_ref (app);
 
+        g_signal_connect (priv->app, "notify::state",
+                          G_CALLBACK (app_state_changed), tile);
+        app_state_changed (priv->app, NULL, tile);
+
 	gtk_label_set_label (GTK_LABEL (priv->title), gs_app_get_name (app));
 	gtk_label_set_label (GTK_LABEL (priv->subtitle), gs_app_get_summary (app));
 	data = g_strdup_printf (

src/gs-popular-tile.c

@@ -60,6 +60,8 @@ app_state_changed (GsApp *app, GParamSpec *pspec, GsPopularTile *tile)
 {
 	GsPopularTilePrivate *priv;
 	AtkObject *accessible;
+	gchar *name;
+	gboolean installed;
 
 	priv = gs_popular_tile_get_instance_private (tile);
 	accessible = gtk_widget_get_accessible (priv->button);
@@ -69,24 +71,25 @@ app_state_changed (GsApp *app, GParamSpec *pspec, GsPopularTile *tile)
 	case GS_APP_STATE_INSTALLING:
 	case GS_APP_STATE_REMOVING:
 	case GS_APP_STATE_UPDATABLE:
-		gtk_widget_show (priv->eventbox);
-		if (GTK_IS_ACCESSIBLE (accessible)) {
-			gchar *name;
-			name = g_strdup_printf ("%s (%s)",
-						gs_app_get_name (app),
-						_("Installed"));
-			atk_object_set_name (accessible, name);
-			g_free (name);
-		}
+		installed = TRUE;
+		name = g_strdup_printf ("%s (%s)",
+					gs_app_get_name (app),
+					_("Installed"));
 		break;
 	case GS_APP_STATE_AVAILABLE:
 	default:
-		gtk_widget_hide (priv->eventbox);
-		if (GTK_IS_ACCESSIBLE (accessible)) {
-			atk_object_set_name (accessible, gs_app_get_name (app));
-		}
+		installed = FALSE;
+		name = g_strdup (gs_app_get_name (app));
 		break;
 	}
+
+	gtk_widget_set_visible (priv->eventbox, installed);
+
+	if (GTK_IS_ACCESSIBLE (accessible)) {
+		atk_object_set_name (accessible, name);
+		atk_object_set_description (accessible, gs_app_get_summary (app));
+	}
+	g_free (name);
 }
 
 void