[eog] EogWindow: Export current image over D-Bus

[Felix Riemann <friemann src gnome org>]

commit c84128ab33b2751b2456f27e518ecbd515581dbf
Author: Felix Riemann <friemann gnome org>
Date:   Sun Dec 1 15:19:30 2013 +0100

    EogWindow: Export current image over D-Bus
    
    This exports the current image and collection size through the state
    of a custom action. The state is read-only.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=712350

 src/eog-window.c |   24 ++++++++++++++++++++++++
 1 files changed, 24 insertions(+), 0 deletions(-)
---
diff --git a/src/eog-window.c b/src/eog-window.c
index 24f3299..d966693 100644
--- a/src/eog-window.c
+++ b/src/eog-window.c
@@ -479,6 +479,7 @@ static void
 update_image_pos (EogWindow *window)
 {
        EogWindowPrivate *priv;
+       GAction* action;
        gint pos = -1, n_images = 0;
 
        priv = window->priv;
@@ -494,6 +495,13 @@ update_image_pos (EogWindow *window)
                                        pos + 1,
                                        n_images);
 
+       action = g_action_map_lookup_action (G_ACTION_MAP (window),
+                                            "current-image");
+
+       g_return_if_fail (action != NULL);
+       g_simple_action_set_state (G_SIMPLE_ACTION (action),
+                                  g_variant_new ("(ii)", pos + 1, n_images));
+
 }
 
 static void
@@ -4284,6 +4292,15 @@ eog_window_action_set_zoom (GSimpleAction *action,
        }
 }
 
+static void
+readonly_state_handler (GSimpleAction *action,
+                        GVariant      *value,
+                        gpointer       user_data)
+{
+       g_warning ("The state of action \"%s\" is read-only! Ignoring request!",
+                  g_action_get_name (G_ACTION (action)));
+}
+
 static const GActionEntry window_actions[] = {
        { "go-previous", eog_window_action_go_prev },
        { "go-next",     eog_window_action_go_next },
@@ -4296,6 +4313,7 @@ static const GActionEntry window_actions[] = {
        { "zoom-out",    eog_window_action_zoom_out },
        { "zoom-fit",    eog_window_action_zoom_best_fit },
        { "zoom-set",    eog_window_action_set_zoom, "d" },
+       { "current-image", NULL, NULL, "@(ii) (0, 0)", readonly_state_handler }
 };
 
 static const GtkToggleActionEntry toggle_entries_gallery[] = {
@@ -5096,6 +5114,7 @@ eog_window_init (EogWindow *window)
 {
        GdkGeometry hints;
        EogWindowPrivate *priv;
+       GAction* action;
 
        eog_debug (DEBUG_WINDOW);
 
@@ -5152,6 +5171,11 @@ eog_window_init (EogWindow *window)
        g_action_map_add_action_entries (G_ACTION_MAP (window),
                                         window_actions, G_N_ELEMENTS (window_actions),
                                         window);
+
+       action = g_action_map_lookup_action (G_ACTION_MAP (window),
+                                            "current-image");
+       if (G_LIKELY (action != NULL))
+               g_simple_action_set_enabled (G_SIMPLE_ACTION (action), FALSE);
 }
 
 static void