glade-widget.c 132 KB
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/*
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 * Copyright (C) 2008 Tristan Van Berkom
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 * Copyright (C) 2004 Joaquin Cuenca Abela
 * Copyright (C) 2001, 2002, 2003 Ximian, Inc.
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 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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 *
 * Authors:
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 *   Joaquin Cuenca Abela <e98cuenc@yahoo.com>
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 *   Chema Celorio <chema@celorio.com>
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 *   Tristan Van Berkom <tvb@gnome.org>
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 */

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#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

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/**
 * SECTION:glade-widget
 * @Short_Description: An object wrapper for the Glade runtime environment.
 *
 * #GladeWidget is the proxy between the instantiated runtime object and
 * the Glade core metadata. This api will be mostly usefull for its
 * convenience api for getting and setting properties (mostly from the plugin).
 */

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#include <string.h>
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#include <glib-object.h>
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#include <gdk/gdkkeysyms.h>
#include <glib/gi18n-lib.h>
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#include "glade.h"
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#include "glade-accumulators.h"
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#include "glade-project.h"
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#include "glade-widget-adaptor.h"
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#include "glade-widget.h"
#include "glade-marshallers.h"
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#include "glade-property.h"
#include "glade-property-class.h"
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#include "glade-placeholder.h"
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#include "glade-signal.h"
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#include "glade-popup.h"
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#include "glade-editor.h"
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#include "glade-app.h"
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#include "glade-design-view.h"
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#include "glade-widget-action.h"
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static void glade_widget_set_adaptor (GladeWidget * widget,
                                      GladeWidgetAdaptor * adaptor);
static void glade_widget_set_properties (GladeWidget * widget,
                                         GList * properties);
static void glade_widget_set_object (GladeWidget * gwidget,
                                     GObject * new_object, gboolean destroy);
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struct _GladeWidgetPrivate {

  GladeWidgetAdaptor *adaptor; /* An adaptor class for the object type */

  GladeProject       *project; /* A pointer to the project that this 
				  widget currently belongs to. */

  GladeWidget  *parent;  /* A pointer to the parent widget in the hierarchy */
	
  gchar *name; /* The name of the widget. For example window1 or
		* button2. This is a unique name and is the one
		* used when loading widget with libglade
		*/

  gchar *support_warning; /* A warning message for version incompatabilities
			   * in this widget
			   */

  gchar *internal; /* If the widget is an internal child of 
		    * another widget this is the name of the 
		    * internal child, otherwise is NULL.
		    * Internal children cannot be deleted.
		    */

  gboolean anarchist; /* Some composite widgets have internal children
		       * that are not part of the same hierarchy; hence 'anarchists',
		       * typicly a popup window or its child (we need to mark
		       * them so we can avoid bookkeeping packing props on them etc.).
		       */

  GObject *object; /* A pointer to the object that was created.
		    * if it is a GtkWidget; it is shown as a "view"
		    * of the GladeWidget. This object is updated as
		    * the properties are modified for the GladeWidget.
		    */

  GList *properties; /* A list of GladeProperty. A GladeProperty is an
		      * instance of a GladePropertyClass. If a
		      * GladePropertyClass for a gtkbutton is label, its
		      * property is "Ok". 
		      */

  GList *packing_properties; /* A list of GladeProperty. Note that these
			      * properties are related to the container
			      * of the widget, thus they change after
			      * pasting the widget to a different
			      * container. Toplevels widget do not have
			      * packing properties.
			      * See also child_properties of 
			      * GladeWidgetClass.
			      */

  GHashTable *props_hash; /* A Quick reference table to speed up calls to glade_widget_get_property()
			   */	
  GHashTable *pack_props_hash; /* A Quick reference table to speed up calls to glade_widget_get_pack_property()
				*/

  GHashTable *signals; /* A table with a GPtrArray of GladeSignals (signal handlers),
			* indexed by its name */

  GList     *prop_refs; /* List of properties in the project who's value are `this object'
			 * (this is used to set/unset those properties when the object is
			 * added/removed from the project).
			 */

  gint               width;   /* Current size used in the UI, this is only */
  gint               height;  /* usefull for parentless widgets in the
			       * GladeDesignLayout */

  GList *actions;		/* A GladeWidgetAction list */

  GList *packing_actions;	/* A GladeWidgetAction list, this actions are
				 * related to the container and they are not always present.
				 */

  GladeWidget    *lock; /* The glade widget that has locked this widget down.
			 */
  GList          *locked_widgets; /* A list of widgets this widget has locked down.
				   */

  /* Construct parameters: */
  GladeWidget       *construct_template;
  GladeCreateReason  construct_reason;
  gchar             *construct_internal;
  guint              construct_exact : 1;

  guint              in_project : 1;

  guint              visible : 1; /* Local copy of widget visibility, we need to keep track of this
				   * since the objects copy may be invalid due to a rebuild.
				   */
};

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enum
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{
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  ADD_SIGNAL_HANDLER,
  REMOVE_SIGNAL_HANDLER,
  CHANGE_SIGNAL_HANDLER,
  BUTTON_PRESS_EVENT,
  BUTTON_RELEASE_EVENT,
  MOTION_NOTIFY_EVENT,
  SUPPORT_CHANGED,
  LAST_SIGNAL
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};
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enum
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{
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  PROP_0,
  PROP_NAME,
  PROP_INTERNAL,
  PROP_ANARCHIST,
  PROP_OBJECT,
  PROP_ADAPTOR,
  PROP_PROJECT,
  PROP_PROPERTIES,
  PROP_PARENT,
  PROP_INTERNAL_NAME,
  PROP_TEMPLATE,
  PROP_TEMPLATE_EXACT,
  PROP_REASON,
  PROP_TOPLEVEL_WIDTH,
  PROP_TOPLEVEL_HEIGHT,
  PROP_SUPPORT_WARNING
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};

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static guint glade_widget_signals[LAST_SIGNAL] = { 0 };

static GQuark glade_widget_name_quark = 0;
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#define IS_GLADE_WIDGET_EVENT(event)		 \
	((event) == GDK_BUTTON_PRESS ||		 \
	 (event) == GDK_BUTTON_RELEASE ||	 \
	 (event) == GDK_MOTION_NOTIFY)

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G_DEFINE_TYPE (GladeWidget, glade_widget, G_TYPE_INITIALLY_UNOWNED)
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/*******************************************************************************
                           GladeWidget class methods
 *******************************************************************************/
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static void
glade_widget_set_packing_actions (GladeWidget * widget,
				  GladeWidget * parent)
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{
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  if (widget->priv->packing_actions)
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    {
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      g_list_foreach (widget->priv->packing_actions, (GFunc) g_object_unref, NULL);
      g_list_free (widget->priv->packing_actions);
      widget->priv->packing_actions = NULL;
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    }

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  if (parent->priv->adaptor->packing_actions)
    widget->priv->packing_actions =
        glade_widget_adaptor_pack_actions_new (parent->priv->adaptor);
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}

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static void
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glade_widget_add_child_impl (GladeWidget * widget,
                             GladeWidget * child, gboolean at_mouse)
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{
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  g_object_ref (child);
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  /* Safe to set the parent first... setting it afterwards
   * creates packing properties, and that is not always
   * desirable.
   */
  glade_widget_set_parent (child, widget);
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  /* Set packing actions first so we have access from the plugin
   */
  glade_widget_set_packing_actions (child, widget);
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  glade_widget_adaptor_add (widget->priv->adaptor, 
			    widget->priv->object, 
			    child->priv->object);
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  /* XXX FIXME:
   * We have a fundamental flaw here, we set packing props
   * after parenting the widget so that we can introspect the
   * values setup by the runtime widget, in which case the plugin
   * cannot access its packing properties and set them sensitive
   * or connect to thier signals etc. maybe its not so important
   * but its a flaw worthy of note, some kind of double pass api
   * would be needed to accomadate this.
   */


  /* Setup packing properties here so we can introspect the new
   * values from the backend.
   */
  glade_widget_set_packing_properties (child, widget);
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}
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static void
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glade_widget_remove_child_impl (GladeWidget * widget, GladeWidget * child)
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{
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  glade_widget_adaptor_remove (widget->priv->adaptor, widget->priv->object, child->priv->object);
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  child->priv->parent = NULL;
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  g_object_unref (child);
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}
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static void
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glade_widget_replace_child_impl (GladeWidget * widget,
                                 GObject * old_object, GObject * new_object)
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{
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  GladeWidget *gnew_widget = glade_widget_get_from_gobject (new_object);
  GladeWidget *gold_widget = glade_widget_get_from_gobject (old_object);
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  if (gnew_widget)
    {
      g_object_ref (gnew_widget);
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      gnew_widget->priv->parent = widget;
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      /* Set packing actions first so we have access from the plugin
       */
      glade_widget_set_packing_actions (gnew_widget, widget);
    }
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  if (gold_widget)
    {
      g_object_unref (gold_widget);
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      if (gold_widget != gnew_widget)
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        gold_widget->priv->parent = NULL;
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    }
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  glade_widget_adaptor_replace_child
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      (widget->priv->adaptor, widget->priv->object, old_object, new_object);
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  /* Setup packing properties here so we can introspect the new
   * values from the backend.
   */
  if (gnew_widget)
    glade_widget_set_packing_properties (gnew_widget, widget);
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}

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static void
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glade_widget_add_signal_handler_impl (GladeWidget * widget,
                                      GladeSignal * signal_handler)
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{
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  GPtrArray *signals;
  GladeSignal *new_signal_handler;
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  g_return_if_fail (GLADE_IS_WIDGET (widget));
  g_return_if_fail (GLADE_IS_SIGNAL (signal_handler));
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  signals = glade_widget_list_signal_handlers (widget, signal_handler->name);
  if (!signals)
    {
      signals = g_ptr_array_new ();
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      g_hash_table_insert (widget->priv->signals, g_strdup (signal_handler->name),
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                           signals);
    }
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  new_signal_handler = glade_signal_clone (signal_handler);
  g_ptr_array_add (signals, new_signal_handler);
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  glade_project_update_signal_support_warning (widget, new_signal_handler);
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}

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static void
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glade_widget_remove_signal_handler_impl (GladeWidget * widget,
                                         GladeSignal * signal_handler)
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{
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  GPtrArray *signals;
  GladeSignal *tmp_signal_handler;
  guint i;
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  g_return_if_fail (GLADE_IS_WIDGET (widget));
  g_return_if_fail (GLADE_IS_SIGNAL (signal_handler));
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  signals = glade_widget_list_signal_handlers (widget, signal_handler->name);
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  /* trying to remove an inexistent signal? */
  g_assert (signals);
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  for (i = 0; i < signals->len; i++)
    {
      tmp_signal_handler = g_ptr_array_index (signals, i);
      if (glade_signal_equal (tmp_signal_handler, signal_handler))
        {
          glade_signal_free (tmp_signal_handler);
          g_ptr_array_remove_index (signals, i);
          break;
        }
    }
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}
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static void
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glade_widget_change_signal_handler_impl (GladeWidget * widget,
                                         GladeSignal * old_signal_handler,
                                         GladeSignal * new_signal_handler)
{
  GPtrArray *signals;
  GladeSignal *signal_handler_iter;
  guint i;

  g_return_if_fail (GLADE_IS_WIDGET (widget));
  g_return_if_fail (GLADE_IS_SIGNAL (old_signal_handler));
  g_return_if_fail (GLADE_IS_SIGNAL (new_signal_handler));
  g_return_if_fail (strcmp (old_signal_handler->name, new_signal_handler->name)
                    == 0);

  signals =
      glade_widget_list_signal_handlers (widget, old_signal_handler->name);

  /* trying to remove an inexistent signal? */
  g_assert (signals);

  for (i = 0; i < signals->len; i++)
    {
      signal_handler_iter = g_ptr_array_index (signals, i);
      if (glade_signal_equal (signal_handler_iter, old_signal_handler))
        {
          if (strcmp (old_signal_handler->handler,
                      new_signal_handler->handler) != 0)
            {
              g_free (signal_handler_iter->handler);
              signal_handler_iter->handler =
                  g_strdup (new_signal_handler->handler);
            }

          /* Handler */
          if (signal_handler_iter->handler)
            g_free (signal_handler_iter->handler);
          signal_handler_iter->handler = g_strdup (new_signal_handler->handler);

          /* Object */
          if (signal_handler_iter->userdata)
            g_free (signal_handler_iter->userdata);
          signal_handler_iter->userdata =
              g_strdup (new_signal_handler->userdata);

          signal_handler_iter->after = new_signal_handler->after;
          signal_handler_iter->swapped = new_signal_handler->swapped;
          break;
        }
    }
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}
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static gboolean
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glade_widget_button_press_event_impl (GladeWidget * gwidget,
                                      GdkEvent * base_event)
{
  GtkWidget *widget;
  GdkEventButton *event = (GdkEventButton *) base_event;
  gboolean handled = FALSE;

  /* make sure to grab focus, since we may stop default handlers */
  widget = GTK_WIDGET (glade_widget_get_object (gwidget));
  if (gtk_widget_get_can_focus (widget) && !gtk_widget_has_focus (widget))
    gtk_widget_grab_focus (widget);

  /* if it's already selected don't stop default handlers, e.g. toggle button */
  if (event->button == 1)
    {
      if (event->state & GDK_CONTROL_MASK)
        {
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          if (glade_project_is_selected (gwidget->priv->project, gwidget->priv->object))
            glade_app_selection_remove (gwidget->priv->object, TRUE);
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          else
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            glade_app_selection_add (gwidget->priv->object, TRUE);
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          handled = TRUE;
        }
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      else if (glade_project_is_selected (gwidget->priv->project,
                                          gwidget->priv->object) == FALSE)
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        {
          glade_util_clear_selection ();
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          glade_app_selection_set (gwidget->priv->object, TRUE);
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          /* Add selection without interrupting event flow 
           * when shift is down, this allows better behaviour
           * for GladeFixed children 
           */
          handled = !(event->state & GDK_SHIFT_MASK);
        }
    }

  /* Give some kind of access in case of missing right button */
  if (!handled && glade_popup_is_popup_event (event))
    {
      glade_popup_widget_pop (gwidget, event, TRUE);
      handled = TRUE;
    }

  return handled;
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}
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static gboolean
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glade_widget_event_impl (GladeWidget * gwidget, GdkEvent * event)
{
  gboolean handled = FALSE;

  g_return_val_if_fail (GLADE_IS_WIDGET (gwidget), FALSE);

  switch (event->type)
    {
      case GDK_BUTTON_PRESS:
        g_signal_emit (gwidget,
                       glade_widget_signals[BUTTON_PRESS_EVENT], 0,
                       event, &handled);
        break;
      case GDK_BUTTON_RELEASE:
        g_signal_emit (gwidget,
                       glade_widget_signals[BUTTON_RELEASE_EVENT], 0,
                       event, &handled);
        break;
      case GDK_MOTION_NOTIFY:
        g_signal_emit (gwidget,
                       glade_widget_signals[MOTION_NOTIFY_EVENT], 0,
                       event, &handled);
        break;
      default:
        break;
    }

  return handled;
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}

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/**
 * glade_widget_event:
 * @event: A #GdkEvent
 *
 * Feed an event to be handled on the project GladeWidget
 * hierarchy.
 *
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 * Returns: whether the event was handled or not.
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 */
gboolean
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glade_widget_event (GladeWidget * gwidget, GdkEvent * event)
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{
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  gboolean handled = FALSE;
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  /* Lets just avoid some synthetic events (like focus-change) */
  if (((GdkEventAny *) event)->window == NULL)
    return FALSE;
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  handled = GLADE_WIDGET_GET_CLASS (gwidget)->event (gwidget, event);
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#if 0
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  if (event->type != GDK_EXPOSE)
    g_print ("event widget '%s' handled '%d' event '%d'\n",
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             gwidget->priv->name, handled, event->type);
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#endif
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  return handled;
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}

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/*******************************************************************************
                      GObjectClass & Object Construction
 *******************************************************************************/
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/*
 * This function creates new GObject parameters based on the GType of the 
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 * GladeWidgetAdaptor and its default values.
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 *
 * If a GladeWidget is specified, it will be used to apply the
 * values currently in use.
 */
static GParameter *
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glade_widget_template_params (GladeWidget * widget,
                              gboolean construct, guint * n_params)
{
  GladeWidgetAdaptor *klass;
  GArray *params;
  GObjectClass *oclass;
  GParamSpec **pspec;
  GladeProperty *glade_property;
  GladePropertyClass *pclass;
  guint n_props, i;

  g_return_val_if_fail (GLADE_IS_WIDGET (widget), NULL);
  g_return_val_if_fail (n_params != NULL, NULL);

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  klass = widget->priv->adaptor;
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  /* As a slight optimization, we never unref the class
   */
  oclass = g_type_class_ref (klass->type);
  pspec = g_object_class_list_properties (oclass, &n_props);
  params = g_array_new (FALSE, FALSE, sizeof (GParameter));

  for (i = 0; i < n_props; i++)
    {
      GParameter parameter = { 0, };

      if ((glade_property =
           glade_widget_get_property (widget, pspec[i]->name)) == NULL)
        continue;

      pclass = glade_property->klass;

      /* Ignore properties based on some criteria
       */
      if (!glade_property_get_enabled (glade_property) || pclass == NULL ||     /* Unaccounted for in the builder */
          pclass->virt ||       /* should not be set before 
                                   GladeWidget wrapper exists */
          pclass->ignore)       /* Catalog explicitly ignores the object */
        continue;

      if (construct &&
          (pspec[i]->flags & (G_PARAM_CONSTRUCT | G_PARAM_CONSTRUCT_ONLY)) == 0)
        continue;
      else if (!construct &&
               (pspec[i]->flags &
                (G_PARAM_CONSTRUCT | G_PARAM_CONSTRUCT_ONLY)) != 0)
        continue;

      if (g_value_type_compatible (G_VALUE_TYPE (pclass->def),
                                   pspec[i]->value_type) == FALSE)
        {
          g_critical ("Type mismatch on %s property of %s",
                      parameter.name, klass->name);
          continue;
        }

      if (g_param_values_cmp (pspec[i],
                              glade_property->value, pclass->orig_def) == 0)
        continue;


      parameter.name = pspec[i]->name;  /* These are not copied/freed */
      g_value_init (&parameter.value, pspec[i]->value_type);
      g_value_copy (glade_property->value, &parameter.value);

      g_array_append_val (params, parameter);
    }
  g_free (pspec);

  *n_params = params->len;
  return (GParameter *) g_array_free (params, FALSE);
604
605
606
}

static void
607
free_params (GParameter * params, guint n_params)
608
{
609
610
611
612
  gint i;
  for (i = 0; i < n_params; i++)
    g_value_unset (&(params[i].value));
  g_free (params);
613
614
615
616

}

static GObject *
617
618
619
620
621
622
glade_widget_build_object (GladeWidget * widget,
                           GladeWidget * template, GladeCreateReason reason)
{
  GParameter *params;
  GObject *object;
  guint n_params, i;
623

624
625
  if (reason == GLADE_CREATE_LOAD)
    {
626
      object = glade_widget_adaptor_construct_object (widget->priv->adaptor, 0, NULL);
627
628
629
630
631
632
633
634
      glade_widget_set_object (widget, object, TRUE);
      return object;
    }

  if (template)
    params = glade_widget_template_params (widget, TRUE, &n_params);
  else
    params =
635
        glade_widget_adaptor_default_params (widget->priv->adaptor, TRUE, &n_params);
636
637
638
639

  /* Create the new object with the correct parameters.
   */
  object =
640
      glade_widget_adaptor_construct_object (widget->priv->adaptor, n_params, params);
641

642
  free_params (params, n_params);
643

644
645
  /* Dont destroy toplevels when rebuilding, handle that separately */
  glade_widget_set_object (widget, object, reason != GLADE_CREATE_REBUILD);
646

647
648
649
650
  if (template)
    params = glade_widget_template_params (widget, FALSE, &n_params);
  else
    params =
651
        glade_widget_adaptor_default_params (widget->priv->adaptor, FALSE, &n_params);
652

653
  for (i = 0; i < n_params; i++)
654
    glade_widget_adaptor_set_property (widget->priv->adaptor, object, params[i].name,
655
                                       &(params[i].value));
656

657
658
659
  free_params (params, n_params);

  return object;
660
661
}

662
663
/**
 * glade_widget_dup_properties:
664
 * @dest_widget: the widget we are copying properties for
665
666
 * @template_props: the #GladeProperty list to copy
 * @as_load: whether to behave as if loading the project
667
668
 * @copy_parentless: whether to copy reffed widgets at all
 * @exact: whether to copy reffed widgets exactly
669
670
671
672
673
674
 *
 * Copies a list of properties, if @as_load is specified, then
 * properties that are not saved to the glade file are ignored.
 *
 * Returns: A newly allocated #GList of new #GladeProperty objects.
 */
675
GList *
676
677
678
glade_widget_dup_properties (GladeWidget * dest_widget, GList * template_props,
                             gboolean as_load, gboolean copy_parentless,
                             gboolean exact)
679
{
680
681
682
683
684
  GList *list, *properties = NULL;

  for (list = template_props; list && list->data; list = list->next)
    {
      GladeProperty *prop = list->data;
685

686
687
      if (prop->klass->save == FALSE && as_load)
        continue;
688

689

690
691
692
693
      if (prop->klass->parentless_widget && copy_parentless)
        {
          GObject *object = NULL;
          GladeWidget *parentless;
694

695
          glade_property_get (prop, &object);
696

697
          prop = glade_property_dup (prop, NULL);
698

699
700
701
          if (object)
            {
              parentless = glade_widget_get_from_gobject (object);
702

703
              parentless = glade_widget_dup (parentless, exact);
704

705
              glade_widget_set_project (parentless, dest_widget->priv->project);
706

707
              glade_property_set (prop, parentless->priv->object);
708
709
710
711
            }
        }
      else
        prop = glade_property_dup (prop, NULL);
712
713


714
715
716
      properties = g_list_prepend (properties, prop);
    }
  return g_list_reverse (properties);
717
718
}

719
720
721
722
723
724
725
726
727
728
729
730
731
/**
 * glade_widget_remove_property:
 * @widget: A #GladeWidget
 * @id_property: the name of the property
 *
 * Removes the #GladeProperty indicated by @id_property
 * from @widget (this is intended for use in the plugin, to
 * remove properties from composite children that dont make
 * sence to allow the user to specify, notably - properties
 * that are proxied through the composite widget's properties or
 * style properties).
 */
void
732
glade_widget_remove_property (GladeWidget * widget, const gchar * id_property)
733
{
734
  GladeProperty *prop;
735

736
737
  g_return_if_fail (GLADE_IS_WIDGET (widget));
  g_return_if_fail (id_property);
738

739
740
741
742
743
744
  /* XXX FIXME: currently we arent calling this on packing properties,
   * but doing so could cause crashes because the hash table is not
   * managed properly
   */
  if ((prop = glade_widget_get_property (widget, id_property)) != NULL)
    {
745
746
      widget->priv->properties = g_list_remove (widget->priv->properties, prop);
      g_hash_table_remove (widget->priv->props_hash, prop->klass->id);
747
748
749
750
      g_object_unref (prop);
    }
  else
    g_critical ("Couldnt find property %s on widget %s\n",
751
                id_property, widget->priv->name);
752
753
}

754
static void
755
glade_widget_set_catalog_defaults (GList * list)
756
{
757
758
759
760
761
762
763
764
765
766
  GList *l;
  for (l = list; l && l->data; l = l->next)
    {
      GladeProperty *prop = l->data;
      GladePropertyClass *klass = prop->klass;

      if (glade_property_equals_value (prop, klass->orig_def) &&
          g_param_values_cmp (klass->pspec, klass->orig_def, klass->def))
        glade_property_reset (prop);
    }
767
}
768

769
static void
770
glade_widget_sync_custom_props (GladeWidget * widget)
771
{
772
  GList *l;
773
  for (l = widget->priv->properties; l && l->data; l = l->next)
774
775
    {
      GladeProperty *prop = GLADE_PROPERTY (l->data);
776

777
778
      if (prop->klass->virt || prop->klass->needs_sync)
        glade_property_sync (prop);
779

780
    }
781
782
783
}

static void
784
glade_widget_sync_packing_props (GladeWidget * widget)
785
{
786
  GList *l;
787
  for (l = widget->priv->packing_properties; l && l->data; l = l->next)
788
789
790
791
    {
      GladeProperty *prop = GLADE_PROPERTY (l->data);
      glade_property_sync (prop);
    }
792
793
}

794

795
static GObject *
796
797
798
799
800
801
802
glade_widget_constructor (GType type,
                          guint n_construct_properties,
                          GObjectConstructParam * construct_properties)
{
  GladeWidget *gwidget;
  GObject *ret_obj, *object;
  GList *properties = NULL, *list;
803

804
805
806
807
808
  ret_obj = G_OBJECT_CLASS (glade_widget_parent_class)->constructor
      (type, n_construct_properties, construct_properties);

  gwidget = GLADE_WIDGET (ret_obj);

809
  if (gwidget->priv->name == NULL)
810
    {
811
      if (gwidget->priv->internal)
812
813
        {
          gchar *name_base = g_strdup_printf ("%s-%s",
814
815
                                              gwidget->priv->construct_internal,
                                              gwidget->priv->internal);
816

817
          if (gwidget->priv->project)
818
            {
819
820
              gwidget->priv->name =
                  glade_project_new_widget_name (gwidget->priv->project,
821
822
823
824
                                                 gwidget, name_base);
              g_free (name_base);
            }
          else
825
            gwidget->priv->name = name_base;
826
827

        }
828
829
830
      else if (gwidget->priv->project)
        gwidget->priv->name = glade_project_new_widget_name
            (gwidget->priv->project, gwidget, gwidget->priv->adaptor->generic_name);
831
      else
832
        gwidget->priv->name = g_strdup (gwidget->priv->adaptor->generic_name);
833
834
    }

835
  if (gwidget->priv->construct_template)
836
837
    {
      properties = glade_widget_dup_properties
838
839
          (gwidget, gwidget->priv->construct_template->priv->properties, FALSE, TRUE,
           gwidget->priv->construct_exact);
840
841
842
843

      glade_widget_set_properties (gwidget, properties);
    }

844
  if (gwidget->priv->object == NULL)
845
846
    {
      object = glade_widget_build_object (gwidget,
847
848
                                          gwidget->priv->construct_template,
                                          gwidget->priv->construct_reason);
849
850
851
852
    }

  /* Copy sync parentless widget props here after a dup
   */
853
  if (gwidget->priv->construct_reason == GLADE_CREATE_COPY)
854
    {
855
      for (list = gwidget->priv->properties; list; list = list->next)
856
857
858
859
860
861
862
863
        {
          GladeProperty *property = list->data;
          if (property->klass->parentless_widget)
            glade_property_sync (property);
        }
    }

  /* Setup width/height */
864
865
  gwidget->priv->width = GWA_DEFAULT_WIDTH (gwidget->priv->adaptor);
  gwidget->priv->height = GWA_DEFAULT_HEIGHT (gwidget->priv->adaptor);
866
867
868
869
870

  /* Introspect object properties before passing it to post_create,
   * but only when its freshly created (depend on glade file at
   * load time and copying properties at dup time).
   */
871
872
  if (gwidget->priv->construct_reason == GLADE_CREATE_USER)
    for (list = gwidget->priv->properties; list; list = list->next)
873
874
875
      glade_property_load (GLADE_PROPERTY (list->data));

  /* We only use catalog defaults when the widget was created by the user! */
876
877
  if (gwidget->priv->construct_reason == GLADE_CREATE_USER)
    glade_widget_set_catalog_defaults (gwidget->priv->properties);
878
879
880
881

  /* Only call this once the GladeWidget is completely built
   * (but before calling custom handlers...)
   */
882
883
  glade_widget_adaptor_post_create (gwidget->priv->adaptor,
                                    gwidget->priv->object, gwidget->priv->construct_reason);
884
885
886

  /* Virtual properties need to be explicitly synchronized.
   */
887
  if (gwidget->priv->construct_reason == GLADE_CREATE_USER)
888
889
    glade_widget_sync_custom_props (gwidget);

890
891
  if (gwidget->priv->parent && gwidget->priv->packing_properties == NULL)
    glade_widget_set_packing_properties (gwidget, gwidget->priv->parent);
892

893
894
  if (GTK_IS_WIDGET (gwidget->priv->object) &&
      !gtk_widget_is_toplevel (GTK_WIDGET (gwidget->priv->object)))
895
    {
896
897
      gwidget->priv->visible = TRUE;
      gtk_widget_show_all (GTK_WIDGET (gwidget->priv->object));
898
    }
899
900
  else if (GTK_IS_WIDGET (gwidget->priv->object) == FALSE)
    gwidget->priv->visible = TRUE;
901
902

  return ret_obj;
903
904
}

905
static void
906
glade_widget_finalize (GObject * object)
907
{
908
  GladeWidget *widget = GLADE_WIDGET (object);
909

910
  g_return_if_fail (GLADE_IS_WIDGET (object));
911

912
#if 0
913
  /* A good way to check if refcounts are balancing at project close time */
914
  g_print ("Finalizing widget %s\n", widget->priv->name);
915
916
#endif

917
918
919
920
  g_free (widget->priv->name);
  g_free (widget->priv->internal);
  g_free (widget->priv->support_warning);
  g_hash_table_destroy (widget->priv->signals);
921

922
923
924
925
  if (widget->priv->props_hash)
    g_hash_table_destroy (widget->priv->props_hash);
  if (widget->priv->pack_props_hash)
    g_hash_table_destroy (widget->priv->pack_props_hash);
926

927
  G_OBJECT_CLASS (glade_widget_parent_class)->finalize (object);
928
929
930
}

static void
931
reset_object_property (GladeProperty * property, GladeProject * project)
932
{
933
934
  if (glade_property_class_is_object (property->klass))
    glade_property_reset (property);
935
936
}

937
static void
938
939
940
941
942
943
944
glade_widget_dispose (GObject * object)
{
  GladeWidget *widget = GLADE_WIDGET (object);

  glade_widget_push_superuser ();

  /* Release references by way of object properties... */
945
  while (widget->priv->prop_refs)
946
    {
947
      GladeProperty *property = GLADE_PROPERTY (widget->priv->prop_refs->data);
948
949
950
      glade_property_set (property, NULL);
    }

951
952
953
  if (widget->priv->properties)
    g_list_foreach (widget->priv->properties, (GFunc) reset_object_property,
                    widget->priv->project);
954
955
956

  /* We have to make sure properties release thier references on other widgets first 
   * hence the reset (for object properties) */
957
  if (widget->priv->properties)
958
    {
959
960
961
      g_list_foreach (widget->priv->properties, (GFunc) g_object_unref, NULL);
      g_list_free (widget->priv->properties);
      widget->priv->properties = NULL;
962
963
964
965
    }

  glade_widget_set_object (widget, NULL, TRUE);

966
  if (widget->priv->packing_properties)
967
    {
968
969
970
      g_list_foreach (widget->priv->packing_properties, (GFunc) g_object_unref, NULL);
      g_list_free (widget->priv->packing_properties);
      widget->priv->packing_properties = NULL;
971
972
    }

973
  if (widget->priv->actions)
974
    {
975
976
977
      g_list_foreach (widget->priv->actions, (GFunc) g_object_unref, NULL);
      g_list_free (widget->priv->actions);
      widget->priv->actions = NULL;
978
979
    }

980
  if (widget->priv->packing_actions)
981
    {
982
983
984
      g_list_foreach (widget->priv->packing_actions, (GFunc) g_object_unref, NULL);
      g_list_free (widget->priv->packing_actions);
      widget->priv->packing_actions = NULL;
985
986
987
988
989
    }

  glade_widget_pop_superuser ();

  G_OBJECT_CLASS (glade_widget_parent_class)->dispose (object);
990
991
}

992
static void
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
glade_widget_set_real_property (GObject * object,
                                guint prop_id,
                                const GValue * value, GParamSpec * pspec)
{
  GladeWidget *widget;

  widget = GLADE_WIDGET (object);

  switch (prop_id)
    {
      case PROP_NAME:
        glade_widget_set_name (widget, g_value_get_string (value));
        break;
      case PROP_INTERNAL:
        glade_widget_set_internal (widget, g_value_get_string (value));
        break;
      case PROP_ANARCHIST:
1010
        widget->priv->anarchist = g_value_get_boolean (value);
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
        break;
      case PROP_OBJECT:
        if (g_value_get_object (value))
          glade_widget_set_object (widget, g_value_get_object (value), TRUE);
        break;
      case PROP_PROJECT:
        glade_widget_set_project (widget,
                                  GLADE_PROJECT (g_value_get_object (value)));
        break;
      case PROP_ADAPTOR:
        glade_widget_set_adaptor (widget, GLADE_WIDGET_ADAPTOR
                                  (g_value_get_object (value)));
        break;
      case PROP_PROPERTIES:
        glade_widget_set_properties (widget,
                                     (GList *) g_value_get_pointer (value));
        break;
      case PROP_PARENT:
        glade_widget_set_parent (widget,
                                 GLADE_WIDGET (g_value_get_object (value)));
        break;
      case PROP_INTERNAL_NAME:
        if (g_value_get_string (value))
1034
          widget->priv->construct_internal = g_value_dup_string (value);
1035
1036
        break;
      case PROP_TEMPLATE:
1037
        widget->priv->construct_template = g_value_get_object (value);
1038
1039
        break;
      case PROP_TEMPLATE_EXACT:
1040
        widget->priv->construct_exact = g_value_get_boolean (value);
1041
1042
        break;
      case PROP_REASON:
1043
        widget->priv->construct_reason = g_value_get_int (value);
1044
1045
        break;
      case PROP_TOPLEVEL_WIDTH:
1046
        widget->priv->width = g_value_get_int (value);
1047
1048
        break;
      case PROP_TOPLEVEL_HEIGHT:
1049
        widget->priv->height = g_value_get_int (value);
1050
1051
1052
1053
1054
        break;
      default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
        break;
    }
1055
1056
1057
}

static void
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
glade_widget_get_real_property (GObject * object,
                                guint prop_id,
                                GValue * value, GParamSpec * pspec)
{
  GladeWidget *widget;

  widget = GLADE_WIDGET (object);

  switch (prop_id)
    {
      case PROP_NAME:
1069
        g_value_set_string (value, widget->priv->name);
1070
1071
        break;
      case PROP_INTERNAL:
1072
        g_value_set_string (value, widget->priv->internal);
1073
1074
        break;
      case PROP_ANARCHIST:
1075
        g_value_set_boolean (value, widget->priv->anarchist);
1076
1077
        break;
      case PROP_ADAPTOR:
1078
        g_value_set_object (value, widget->priv->adaptor);
1079
1080
        break;
      case PROP_PROJECT:
1081
        g_value_set_object (value, G_OBJECT (widget->priv->project));
1082
1083
        break;
      case PROP_OBJECT:
1084
        g_value_set_object (value, widget->priv->object);
1085
1086
        break;
      case PROP_PROPERTIES:
1087
        g_value_set_pointer (value, widget->priv->properties);
1088
1089
        break;
      case PROP_PARENT:
1090
        g_value_set_object (value, widget->priv->parent);
1091
1092
        break;
      case PROP_TOPLEVEL_WIDTH:
1093
        g_value_set_int (value, widget->priv->width);
1094
1095
        break;
      case PROP_TOPLEVEL_HEIGHT:
1096
        g_value_set_int (value, widget->priv->height);
1097
1098
        break;
      case PROP_SUPPORT_WARNING:
1099
        g_value_set_string (value, widget->priv->support_warning);
1100
1101
1102
1103
1104
        break;
      default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
        break;
    }
1105
1106
1107
}

static void
1108
free_signals (gpointer value)
1109
{
1110
1111
1112
  GPtrArray *signals = (GPtrArray *) value;
  guint i;
  guint nb_signals;
1113

1114
1115
  if (signals == NULL)
    return;
1116

1117
1118
1119
1120
1121
  /* g_ptr_array_foreach (signals, (GFunc) glade_signal_free, NULL);
   * only available in modern versions of Gtk+ */
  nb_signals = signals->len;
  for (i = 0; i < nb_signals; i++)
    glade_signal_free (g_ptr_array_index (signals, i));
1122

1123
  g_ptr_array_free (signals, TRUE);
1124
1125
}

1126
static void
1127
1128
glade_widget_init (GladeWidget * widget)
{