/*

 * glade-gtk-window.c - GladeWidgetAdaptor for GtkWindow

 *

 * Copyright (C) 2013 Tristan Van Berkom

 *

 * Authors:

 *      Tristan Van Berkom <tristan.van.berkom@gmail.com>

 *

 * This library is free software; you can redistribute it and/or modify it

 * under the terms of the GNU Lesser General Public License as

 * published by the Free Software Foundation; either version 2.1 of

 * the License, or (at your option) any later version.

 *

 * This library 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

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public 

 * License along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

 */

#include <config.h>

#include <glib/gi18n-lib.h>

#include <gladeui/glade.h>

#include "glade-window-editor.h"

#include "glade-about-dialog-editor.h"

#include "glade-file-chooser-dialog-editor.h"

#include "glade-font-chooser-dialog-editor.h"

#include "glade-message-dialog-editor.h"

#include "glade-recent-chooser-dialog-editor.h"

#include "glade-gtk.h"

#define GLADE_TAG_ACCEL_GROUPS "accel-groups"

#define GLADE_TAG_ACCEL_GROUP  "group"

#define CSD_DISABLED_MESSAGE _("This property does not apply to client-side decorated windows")

static void

glade_gtk_window_parse_finished (GladeProject * project, GObject * object)

{

  GtkWidget *titlebar = gtk_window_get_titlebar(GTK_WINDOW (object));

  glade_widget_property_set (glade_widget_get_from_gobject (object), "use-csd",

                             titlebar && gtk_widget_get_visible (titlebar));

}

static void

glade_gtk_window_ensure_titlebar_placeholder (GObject *window)

{

  GtkWidget *placeholder;

  if (gtk_window_get_titlebar (GTK_WINDOW (window)))

    return;

  placeholder = glade_placeholder_new ();

  gtk_window_set_titlebar (GTK_WINDOW (window), placeholder);

  gtk_widget_hide (placeholder);

}

void

glade_gtk_window_post_create (GladeWidgetAdaptor * adaptor,

                              GObject * object, GladeCreateReason reason)

{

  GladeWidget *parent = glade_widget_get_from_gobject (object);

  GladeProject *project = glade_widget_get_project (parent);

  /* Add a placeholder as the titlebar widget and hide it.

   *

   * This way we avoid client side decorations in the workspace in non WM backends

   * like wayland.

   *

   * We do not use gtk_window_set_decorated (FALSE) because we need to be able to show

   * the decoration if the user enables CSD.

   *

   * See Bug 765885 - "client side decoration, no space to add header bar"

   */

  glade_gtk_window_ensure_titlebar_placeholder (object);

  if (reason == GLADE_CREATE_LOAD)

    {

      g_signal_connect (project, "parse-finished",

                        G_CALLBACK (glade_gtk_window_parse_finished),

                        object);

    }

  else if (reason == GLADE_CREATE_USER)

    {

      gtk_container_add (GTK_CONTAINER (object), glade_placeholder_new ());

    }

}

static void

glade_gtk_window_read_accel_groups (GladeWidget * widget, GladeXmlNode * node)

{

  GladeXmlNode *groups_node;

  GladeProperty *property;

  gchar *string = NULL;

  if ((groups_node =

       glade_xml_search_child (node, GLADE_TAG_ACCEL_GROUPS)) != NULL)

    {

      GladeXmlNode *node;

      for (node = glade_xml_node_get_children (groups_node);

           node; node = glade_xml_node_next (node))

        {

          gchar *group_name, *tmp;

          if (!glade_xml_node_verify (node, GLADE_TAG_ACCEL_GROUP))

            continue;

          group_name = glade_xml_get_property_string_required

              (node, GLADE_TAG_NAME, NULL);

          if (string == NULL)

            string = group_name;

          else if (group_name != NULL)

            {

              tmp =

                  g_strdup_printf ("%s%s%s", string, GPC_OBJECT_DELIMITER,

                                   group_name);

              string = (g_free (string), tmp);

              g_free (group_name);

            }

        }

    }

  if (string)

    {

      property = glade_widget_get_property (widget, "accel-groups");

      g_assert (property);

      /* we must synchronize this directly after loading this project

       * (i.e. lookup the actual objects after they've been parsed and

       * are present).

       */

      g_object_set_data_full (G_OBJECT (property),

                              "glade-loaded-object", string, g_free);

    }

}

void

glade_gtk_window_read_widget (GladeWidgetAdaptor * adaptor,

                              GladeWidget * widget, GladeXmlNode * node)

{

  if (!(glade_xml_node_verify_silent (node, GLADE_XML_TAG_WIDGET) ||

	glade_xml_node_verify_silent (node, GLADE_XML_TAG_TEMPLATE)))

    return;

  /* First chain up and read in all the normal properties.. */

  GWA_GET_CLASS (GTK_TYPE_WIDGET)->read_widget (adaptor, widget, node);

  /* Sync the icon mode */

  if (glade_widget_property_original_default (widget, "icon") == FALSE)

    glade_widget_property_set (widget, "glade-window-icon-name", FALSE);

  else

    glade_widget_property_set (widget, "glade-window-icon-name", TRUE);

  glade_gtk_window_read_accel_groups (widget, node);

}

static void

glade_gtk_window_write_accel_groups (GladeWidget * widget,

                                     GladeXmlContext * context,

                                     GladeXmlNode * node)

{

  GladeXmlNode *groups_node, *group_node;

  GList *groups = NULL, *list;

  GladeWidget *agroup;

  groups_node = glade_xml_node_new (context, GLADE_TAG_ACCEL_GROUPS);

  if (glade_widget_property_get (widget, "accel-groups", &groups))

    {

      for (list = groups; list; list = list->next)

        {

          agroup = glade_widget_get_from_gobject (list->data);

          group_node = glade_xml_node_new (context, GLADE_TAG_ACCEL_GROUP);

          glade_xml_node_append_child (groups_node, group_node);

          glade_xml_node_set_property_string (group_node, GLADE_TAG_NAME,

                                              glade_widget_get_name (agroup));

        }

    }

  if (!glade_xml_node_get_children (groups_node))

    glade_xml_node_delete (groups_node);

  else

    glade_xml_node_append_child (node, groups_node);

}

void

glade_gtk_window_write_widget (GladeWidgetAdaptor * adaptor,

                               GladeWidget * widget,

                               GladeXmlContext * context, GladeXmlNode * node)

{

  if (!(glade_xml_node_verify_silent (node, GLADE_XML_TAG_WIDGET) ||

        glade_xml_node_verify_silent (node, GLADE_XML_TAG_TEMPLATE)))

    return;

  /* First chain up and read in all the normal properties.. */

  GWA_GET_CLASS (GTK_TYPE_WIDGET)->write_widget (adaptor, widget, context,

                                                 node);

  glade_gtk_window_write_accel_groups (widget, context, node);

}

GladeEditable *

glade_gtk_window_create_editable (GladeWidgetAdaptor * adaptor,

				  GladeEditorPageType type)

{

  GladeEditable *editable;

  if (type == GLADE_PAGE_GENERAL &&

      /* Don't show all the GtkWindow properties for offscreen windows.

       *

       * We spoof the offscreen window type instead of using the real GType,

       * so don't check it by GType but use strcmp() instead.

       */

      strcmp (glade_widget_adaptor_get_name (adaptor), "GtkOffscreenWindow") != 0)

    {

      GType window_type = glade_widget_adaptor_get_object_type (adaptor);

      if (g_type_is_a (window_type, GTK_TYPE_ABOUT_DIALOG))

	editable = (GladeEditable *) glade_about_dialog_editor_new ();

      else if (g_type_is_a (window_type, GTK_TYPE_FILE_CHOOSER_DIALOG))

	editable = (GladeEditable *) glade_file_chooser_dialog_editor_new ();

      else if (g_type_is_a (window_type, GTK_TYPE_FONT_CHOOSER_DIALOG))

	editable = (GladeEditable *) glade_font_chooser_dialog_editor_new ();

      else if (g_type_is_a (window_type, GTK_TYPE_RECENT_CHOOSER_DIALOG))

	editable = (GladeEditable *) glade_recent_chooser_dialog_editor_new ();

      else if (g_type_is_a (window_type, GTK_TYPE_MESSAGE_DIALOG))

	editable = (GladeEditable *) glade_message_dialog_editor_new ();

      else

	editable = (GladeEditable *) glade_window_editor_new ();

    }

  else

    editable = GWA_GET_CLASS (GTK_TYPE_WIDGET)->create_editable (adaptor, type);

  return editable;

}

void

glade_gtk_window_set_property (GladeWidgetAdaptor * adaptor,

			       GObject * object,

			       const gchar * id, const GValue * value)

{

  GladeWidget *gwidget = glade_widget_get_from_gobject (object);

  if (!strcmp (id, "glade-window-icon-name"))

    {

      glade_widget_property_set_sensitive (gwidget, "icon", FALSE, NOT_SELECTED_MSG);

      glade_widget_property_set_sensitive (gwidget, "icon-name", FALSE, NOT_SELECTED_MSG);

      if (g_value_get_boolean (value))

	glade_widget_property_set_sensitive (gwidget, "icon-name", TRUE, NULL);

      else

	glade_widget_property_set_sensitive (gwidget, "icon", TRUE, NULL);

    }

  else if (!strcmp (id, "use-csd"))

    {

      GtkWidget *titlebar = gtk_window_get_titlebar (GTK_WINDOW (object));

      if (g_value_get_boolean (value))

        {

          g_object_set_data (G_OBJECT (titlebar), "special-child-type", "titlebar");

          /* make sure the titlebar widget is visible */

          gtk_widget_show (titlebar);

          glade_widget_property_set_sensitive (gwidget, "title", FALSE, CSD_DISABLED_MESSAGE);

          glade_widget_property_set_sensitive (gwidget, "decorated", FALSE, CSD_DISABLED_MESSAGE);

          glade_widget_property_set_sensitive (gwidget, "hide-titlebar-when-maximized", FALSE, CSD_DISABLED_MESSAGE);

        }

      else

        {

          /* Set a hidden placeholder as the titlebar */

          glade_gtk_window_ensure_titlebar_placeholder (object);

          glade_widget_property_set_sensitive (gwidget, "title", TRUE, NULL);

          glade_widget_property_set_sensitive (gwidget, "decorated", TRUE, NULL);

          glade_widget_property_set_sensitive (gwidget, "hide-titlebar-when-maximized", TRUE, NULL);

        }

    }

  else

    GWA_GET_CLASS (GTK_TYPE_CONTAINER)->set_property (adaptor, object, id, value);

}

void

glade_gtk_window_replace_child (GladeWidgetAdaptor * adaptor,

                               GtkWidget * container,

                               GtkWidget * current, GtkWidget * new_widget)

{

  gchar *special_child_type;

  special_child_type = g_object_get_data (G_OBJECT (current), "special-child-type");

  if (special_child_type && !strcmp (special_child_type, "titlebar"))

    {

      g_object_set_data (G_OBJECT (new_widget), "special-child-type", "titlebar");

      gtk_window_set_titlebar (GTK_WINDOW (container), new_widget);

      return;

    }

  /* Chain Up */

  GWA_GET_CLASS

      (GTK_TYPE_CONTAINER)->replace_child (adaptor,

                                           G_OBJECT (container),

                                           G_OBJECT (current),

                                           G_OBJECT (new_widget));

}

void

glade_gtk_window_add_child (GladeWidgetAdaptor * adaptor,

                           GObject * object, GObject * child)

{

  GtkWidget *bin_child;

  gchar *special_child_type;

  special_child_type = g_object_get_data (child, "special-child-type");

  if (special_child_type && !strcmp (special_child_type, "titlebar"))

    {

      gtk_window_set_titlebar (GTK_WINDOW (object), GTK_WIDGET (child));

    }

  else

    {

      /* Get a placeholder out of the way before adding the child */

      bin_child = gtk_bin_get_child (GTK_BIN (object));

      if (bin_child)

        {

          if (GLADE_IS_PLACEHOLDER (bin_child))

            gtk_container_remove (GTK_CONTAINER (object), bin_child);

          else

            {

              g_critical ("Cant add more than one widget to a GtkWindow");

              return;

            }

        }

      gtk_container_add (GTK_CONTAINER (object), GTK_WIDGET (child));

    }

}

void

glade_gtk_window_remove_child (GladeWidgetAdaptor * adaptor,

                              GObject * object, GObject * child)

{

  gchar *special_child_type;

  GtkWidget *placeholder;

  placeholder = glade_placeholder_new ();

  special_child_type = g_object_get_data (child, "special-child-type");

  if (special_child_type && !strcmp (special_child_type, "titlebar"))

    {

      g_object_set_data (G_OBJECT (placeholder), "special-child-type", "titlebar");

      gtk_window_set_titlebar (GTK_WINDOW (object), placeholder);

    }

  else

    {

      gtk_container_remove (GTK_CONTAINER (object), GTK_WIDGET (child));

      gtk_container_add (GTK_CONTAINER (object), placeholder);

    }

}

GList *

glade_gtk_window_get_children (GladeWidgetAdaptor *adaptor, GObject *container)

{

  GtkWidget *child = gtk_bin_get_child (GTK_BIN (container));

  GtkWidget *titlebar = gtk_window_get_titlebar (GTK_WINDOW (container));

  GList *children = NULL;

  if (child)

    children = g_list_prepend (children, child);

  if (titlebar)

    children = g_list_prepend (children, titlebar);

  return children;

}