Properly pass the focus from the core to plug-in dialogs:

2008-03-27  Sven Neumann  <sven@gimp.org>

	Properly pass the focus from the core to plug-in dialogs:

	* libgimpbase/gimpprotocol.[ch]: added a user_time member to the
	GimpConfig struct. Bumped the protocol version to 0x0012.

	* app/core/gimp-gui.[ch]
	* app/gui/gui-vtable.c: added gimp_get_user_time() to get the
	timestamp of the last user interaction.

	* app/plug-in/gimppluginmanager-call.c
	(gimp_plug_in_manager_call_run): pass the timestamp to in the
	GimpConfig message.

	* libgimp/gimp.[ch]:
	* libgimp/gimp.def: added method to access the timestamp as set
	in the config message.

	* libgimp/gimpui.c (gimp_ui_init): construct a fake startup ID and
	set the DESKTOP_STARTUP_ID environment variable.

svn path=/trunk/; revision=25263

libgimp/gimp.c

@@ -179,6 +179,7 @@ static gint           _gdisp_ID          = -1;
 static gchar         *_wm_class          = NULL;
 static gchar         *_display_name      = NULL;
 static gint           _monitor_number    = 0;
+static guint32        _timestamp         = 0;
 static const gchar   *progname           = NULL;
 
 static gchar          write_buffer[WRITE_BUFFER_SIZE];
@@ -1222,6 +1223,7 @@ gimp_wm_class (void)
  * gimp_display_name:
  *
  * Returns the display to be used for plug-in windows.
+ *
  * This is a constant value given at plug-in configuration time.
  *
  * Return value: the display name
@@ -1246,6 +1248,22 @@ gimp_monitor_number (void)
   return _monitor_number;
 }
 
+/**
+ * gimp_user_time:
+ *
+ * Returns the timestamp of the user interaction that should be set on
+ * the plug-in window. This is handled transparently. Plug-in authors
+ * do not have to care about this. This is a constant value given at
+ * plug-in configuration time.
+ *
+ * Return value: timestamp for plug-in window
+ **/
+guint32
+gimp_user_time (void)
+{
+  return _timestamp;
+}
+
 /**
  * gimp_get_progname:
  *
@@ -1712,6 +1730,7 @@ gimp_config (GPConfig *config)
   _wm_class         = g_strdup (config->wm_class);
   _display_name     = g_strdup (config->display_name);
   _monitor_number   = config->monitor_number;
+  _timestamp        = config->timestamp;
 
   if (config->app_name)
     g_set_application_name (config->app_name);

libgimp/gimp.def

@@ -619,6 +619,7 @@ EXPORTS
 	gimp_tile_width
 	gimp_transform_2d
 	gimp_uninstall_temp_proc
+	gimp_user_time
 	gimp_vectors_bezier_stroke_conicto
 	gimp_vectors_bezier_stroke_cubicto
 	gimp_vectors_bezier_stroke_lineto

libgimp/gimp.h

@@ -321,6 +321,7 @@ gint32         gimp_default_display     (void) G_GNUC_CONST;
 const gchar  * gimp_wm_class            (void) G_GNUC_CONST;
 const gchar  * gimp_display_name        (void) G_GNUC_CONST;
 gint           gimp_monitor_number      (void) G_GNUC_CONST;
+guint32        gimp_user_time           (void) G_GNUC_CONST;
 
 const gchar  * gimp_get_progname        (void) G_GNUC_CONST;
 

libgimp/gimpui.c

@@ -65,9 +65,9 @@ void
 gimp_ui_init (const gchar *prog_name,
               gboolean     preview)
 {
+  GdkScreen   *screen;
   const gchar *display_name;
   gchar       *themerc;
-  GdkScreen   *screen;
 
   g_return_if_fail (prog_name != NULL);
 
@@ -87,6 +87,17 @@ gimp_ui_init (const gchar *prog_name,
 #endif
     }
 
+  if (gimp_user_time ())
+    {
+      /* Construct a fake startup ID as we only want to pass the
+       * interaction timestamp, see _gdk_windowing_set_default_display().
+       */
+      gchar *startup_id = g_strdup_printf ("_TIME%u", gimp_user_time ());
+
+      g_setenv ("DESKTOP_STARTUP_ID", startup_id, TRUE);
+      g_free (startup_id);
+    }
+
   gtk_init (NULL, NULL);
 
   themerc = gimp_personal_rc_file ("themerc");