[gimp] app: force the action search dialog above its parent window...

[Jehan Pagès <jehanp src gnome org>]

commit 23de02b8c2985b8b0f6c10832ce0ab2a22573919
Author: Jehan <jehan girinstud io>
Date:   Sat Nov 29 23:53:18 2014 +0100

    app: force the action search dialog above its parent window...
    
    ... and set it modal to prevent interaction with other GIMP windows.

 app/dialogs/action-search-dialog.c |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)
---
diff --git a/app/dialogs/action-search-dialog.c b/app/dialogs/action-search-dialog.c
index 17a6ad7..b0881f0 100644
--- a/app/dialogs/action-search-dialog.c
+++ b/app/dialogs/action-search-dialog.c
@@ -123,6 +123,10 @@ action_search_dialog_create (Gimp *gimp)
   if (! private)
     {
       GtkWidget *action_search_dialog = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+      GdkScreen *screen               = gdk_screen_get_default ();
+      GdkWindow *gdk_parent           = gdk_screen_get_active_window (screen);
+      gpointer   parent_widget;
+      GtkWindow *parent;
       GtkWidget *main_vbox;
 
       private = g_slice_new0 (SearchDialog);
@@ -136,6 +140,15 @@ action_search_dialog_create (Gimp *gimp)
                            "gimp-action-search-dialog");
       gtk_window_set_title (GTK_WINDOW (action_search_dialog),
                             _("Search Actions"));
+      gtk_window_set_modal (GTK_WINDOW (action_search_dialog), TRUE);
+      /* The user data for a GdkWindow is its associated widget. */
+      gdk_window_get_user_data (gdk_parent, &parent_widget);
+      parent = GTK_WINDOW(gtk_widget_get_toplevel (GTK_WIDGET (parent_widget)));
+      /* NOTE: gtk_window_set_keep_above() would be easier but would render
+       * the search dialog above any windows, even non-GIMP related, which
+       * some early testers found annoying.
+       * Setting it transient forces it above a single parent instead. */
+      gtk_window_set_transient_for (GTK_WINDOW (action_search_dialog), parent);
 
       main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
       gtk_container_add (GTK_CONTAINER (action_search_dialog), main_vbox);