ivi-layout: introduced configure_desktop_changed

Introduced signal configure_desktop_changed with interface. This signal
should be sent, when a desktop-surface is configured.

Signed-off-by: Michael Teyfel <mteyfel@de.adit-jv.com>

ivi-shell/ivi-layout-export.h

@@ -190,6 +190,16 @@ struct ivi_layout_interface {
 	 */
 	int32_t (*add_listener_configure_surface)(struct wl_listener *listener);
 
+	/**
+	 * \brief add a listener for notification when desktop_surface is configured
+	 *
+	 * When an desktop_surface is configured, a signal is emitted
+	 * to the listening controller plugins.
+	 * The pointer of the configured desktop_surface is sent as the void *data argument
+	 * to the wl_listener::notify callback function of the listener.
+	 */
+	int32_t (*add_listener_configure_desktop_surface)(struct wl_listener *listener);
+
 	/**
 	 * \brief Get all ivi_surfaces which are currently registered and managed
 	 * by the services

ivi-shell/ivi-layout-private.h

@@ -104,6 +104,7 @@ struct ivi_layout {
 		struct wl_signal created;
 		struct wl_signal removed;
 		struct wl_signal configure_changed;
+		struct wl_signal configure_desktop_changed;
 	} surface_notification;
 
 	struct weston_layer layout_layer;

ivi-shell/ivi-layout.c

@@ -968,6 +968,21 @@ ivi_layout_add_listener_configure_surface(struct wl_listener *listener)
 	return IVI_SUCCEEDED;
 }
 
+static int32_t
+ivi_layout_add_listener_configure_desktop_surface(struct wl_listener *listener)
+{
+	struct ivi_layout *layout = get_instance();
+
+	if (!listener) {
+		weston_log("ivi_layout_add_listener_configure_desktop_surface: invalid argument\n");
+		return IVI_FAILED;
+	}
+
+	wl_signal_add(&layout->surface_notification.configure_desktop_changed, listener);
+
+	return IVI_SUCCEEDED;
+}
+
 uint32_t
 ivi_layout_get_id_of_surface(struct ivi_layout_surface *ivisurf)
 {
@@ -1969,6 +1984,7 @@ ivi_layout_init_with_compositor(struct weston_compositor *ec)
 	wl_signal_init(&layout->surface_notification.created);
 	wl_signal_init(&layout->surface_notification.removed);
 	wl_signal_init(&layout->surface_notification.configure_changed);
+	wl_signal_init(&layout->surface_notification.configure_desktop_changed);
 
 	/* Add layout_layer at the last of weston_compositor.layer_list */
 	weston_layer_init(&layout->layout_layer, ec);
@@ -1997,6 +2013,7 @@ static struct ivi_layout_interface ivi_layout_interface = {
 	.add_listener_create_surface	= ivi_layout_add_listener_create_surface,
 	.add_listener_remove_surface	= ivi_layout_add_listener_remove_surface,
 	.add_listener_configure_surface	= ivi_layout_add_listener_configure_surface,
+	.add_listener_configure_desktop_surface	= ivi_layout_add_listener_configure_desktop_surface,
 	.get_surface				= shell_get_ivi_layout_surface,
 	.get_surfaces				= ivi_layout_get_surfaces,
 	.get_id_of_surface			= ivi_layout_get_id_of_surface,