/*

 * glade-gtk-flow-box.c - GladeWidgetAdaptor for GtkFlowBox widget

 *

 * Copyright (C) 2014 Red Hat, Inc.

 *

 * Authors:

 *      Matthias Clasen <mclasen@redhat.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 <gtk/gtk.h>

#include <glib/gi18n-lib.h>

#include <string.h>

#include <gladeui/glade.h>

#include "glade-gtk.h"

static void

sync_child_positions (GtkFlowBox *flowbox)

{

  GList *l, *children;

  int position;

  static gboolean recursion = FALSE;

  /* Avoid feedback loop */

  if (recursion)

    return;

  children = gtk_container_get_children (GTK_CONTAINER (flowbox));

  position = 0;

  for (l = children; l; l = g_list_next (l))

    {

      gint old_position;

      glade_widget_pack_property_get (glade_widget_get_from_gobject (l->data),

                                      "position", &old_position);

      if (position != old_position)

        {

          /* Update glade with the new value */

          recursion = TRUE;

          glade_widget_pack_property_set (glade_widget_get_from_gobject (l->data),

                                          "position", position);

          recursion = FALSE;

        }

      position++;

    }

  g_list_free (children);

}

static void

glade_gtk_flowbox_insert (GtkFlowBox    *flowbox,

                          GtkFlowBoxChild *child,

                          gint           position)

{

  gtk_flow_box_insert (flowbox, GTK_WIDGET (child), position);

  sync_child_positions (flowbox);

}

static void

glade_gtk_flowbox_reorder (GtkFlowBox    *flowbox,

                           GtkFlowBoxChild *child,

                           gint           position)

{

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

  gtk_flow_box_insert (flowbox, GTK_WIDGET (child), position);

  sync_child_positions (flowbox);

}

void

glade_gtk_flowbox_get_child_property (GladeWidgetAdaptor *adaptor,

                                      GObject            *container,

                                      GObject            *child,

                                      const gchar        *property_name,

                                      GValue             *value)

{

  g_return_if_fail (GTK_IS_FLOW_BOX (container));

  g_return_if_fail (GTK_IS_FLOW_BOX_CHILD (child));

  if (strcmp (property_name, "position") == 0)

    {

      gint position = gtk_flow_box_child_get_index (GTK_FLOW_BOX_CHILD (child));

      g_value_set_int (value, position);

    }

  else

    {

      /* Chain Up */

      GWA_GET_CLASS (GTK_TYPE_CONTAINER)->child_get_property (adaptor,

                                                              container,

                                                              child,

                                                              property_name,

                                                              value);

    }

}

void

glade_gtk_flowbox_set_child_property (GladeWidgetAdaptor *adaptor,

                                      GObject            *container,

                                      GObject            *child,

                                      const gchar        *property_name,

                                      GValue             *value)

{

  g_return_if_fail (GTK_IS_FLOW_BOX (container));

  g_return_if_fail (GTK_IS_FLOW_BOX_CHILD (child));

  g_return_if_fail (property_name != NULL || value != NULL);

  if (strcmp (property_name, "position") == 0)

    {

      gint position;

      position = g_value_get_int (value);

      glade_gtk_flowbox_reorder (GTK_FLOW_BOX (container),

                                 GTK_FLOW_BOX_CHILD (child),

                                 position);

    }

  else

    {

      /* Chain Up */

      GWA_GET_CLASS (GTK_TYPE_CONTAINER)->child_set_property (adaptor,

                                                              container,

                                                              child,

                                                              property_name,

                                                              value);

    }

}

gboolean

glade_gtk_flowbox_add_verify (GladeWidgetAdaptor *adaptor,

                              GtkWidget          *container,

                              GtkWidget          *child,

                              gboolean            user_feedback)

{

  if (!GTK_IS_FLOW_BOX_CHILD (child))

    {

      if (user_feedback)

        {

          GladeWidgetAdaptor *tool_item_adaptor =

            glade_widget_adaptor_get_by_type (GTK_TYPE_FLOW_BOX_CHILD);

          glade_util_ui_message (glade_app_get_window (),

                                 GLADE_UI_INFO, NULL,

                                 ONLY_THIS_GOES_IN_THAT_MSG,

                                 glade_widget_adaptor_get_title (tool_item_adaptor),

                                 glade_widget_adaptor_get_title (adaptor));

        }

      return FALSE;

    }

  return TRUE;

}

void

glade_gtk_flowbox_add_child (GladeWidgetAdaptor *adaptor,

                             GObject            *object,

                             GObject            *child)

{

  g_return_if_fail (GTK_IS_FLOW_BOX (object));

  g_return_if_fail (GTK_IS_FLOW_BOX_CHILD (child));

  /* Insert to the end of the list */

  glade_gtk_flowbox_insert (GTK_FLOW_BOX (object),

                            GTK_FLOW_BOX_CHILD (child),

                            -1);

}

void

glade_gtk_flowbox_remove_child (GladeWidgetAdaptor *adaptor,

                                GObject            *object,

                                GObject            *child)

{

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

  sync_child_positions (GTK_FLOW_BOX (object));

}

static void

glade_gtk_flowbox_child_insert_action (GladeWidgetAdaptor *adaptor,

                                       GObject            *container,

                                       GObject            *object,

                                       gboolean            after)

{

  GladeWidget *parent;

  GladeWidget *gchild;

  gint position;

  parent = glade_widget_get_from_gobject (container);

  glade_command_push_group (_("Insert Child on %s"), glade_widget_get_name (parent));

  position = gtk_flow_box_child_get_index (GTK_FLOW_BOX_CHILD (object));

  if (after)

    position++;

  gchild = glade_command_create (glade_widget_adaptor_get_by_type (GTK_TYPE_FLOW_BOX_CHILD),

                                 parent,

                                 NULL,

                                 glade_widget_get_project (parent));

  glade_widget_pack_property_set (gchild, "position", position);

  glade_command_pop_group ();

}

void

glade_gtk_flowbox_action_activate (GladeWidgetAdaptor * adaptor,

				   GObject * object,

				   const gchar * action_path)

{

  if (strcmp (action_path, "add_child") == 0)

    {

      GladeWidgetAdaptor *adaptor = glade_widget_adaptor_get_by_type (GTK_TYPE_FLOW_BOX_CHILD);

      GladeWidget *gparent = glade_widget_get_from_gobject (object);

      GladeProject *project = glade_widget_get_project (gparent);

      glade_command_create (adaptor, gparent, NULL, project);

      glade_project_selection_set (project, object, TRUE);

    }

  else

    GWA_GET_CLASS (GTK_TYPE_CONTAINER)->action_activate (adaptor,

                                                         object, action_path);

}

void

glade_gtk_flowbox_child_action_activate (GladeWidgetAdaptor *adaptor,

                                         GObject            *container,

                                         GObject            *object,

                                         const gchar        *action_path)

{

  if (strcmp (action_path, "insert_after") == 0)

    {

      glade_gtk_flowbox_child_insert_action (adaptor, container, object,

                                             TRUE);

    }

  else if (strcmp (action_path, "insert_before") == 0)

    {

      glade_gtk_flowbox_child_insert_action (adaptor, container, object,

                                             FALSE);

    }

  else

    {

      GWA_GET_CLASS (GTK_TYPE_CONTAINER)->child_action_activate (adaptor,

                                                                 container,

                                                                 object,

                                                                 action_path);

    }

}