/* GTK - The GIMP Toolkit
 * gtkfilechooserdialog.c: File selector dialog
 * Copyright (C) 2003, Red Hat, Inc.
 *
 * 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 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 library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#include "gtkfilechooserdialog.h"
#include "gtkfilechooserwidget.h"
#include "gtkfilechooserutils.h"
#include "gtkfilesystem.h"
#include "gtktypebuiltins.h"

#include <stdarg.h>

struct _GtkFileChooserDialogPrivate
{
  GtkWidget *widget;
  
  GtkFileSystem *file_system;
};

#define GTK_FILE_CHOOSER_DIALOG_GET_PRIVATE(o)  (GTK_FILE_CHOOSER_DIALOG (o)->priv)

static void gtk_file_chooser_dialog_class_init (GtkFileChooserDialogClass *class);
static void gtk_file_chooser_dialog_init       (GtkFileChooserDialog      *dialog);

static GObject* gtk_file_chooser_dialog_constructor  (GType                  type,
						      guint                  n_construct_properties,
						      GObjectConstructParam *construct_params);
static void     gtk_file_chooser_dialog_set_property (GObject               *object,
						      guint                  prop_id,
						      const GValue          *value,
						      GParamSpec            *pspec);
static void     gtk_file_chooser_dialog_get_property (GObject               *object,
						      guint                  prop_id,
						      GValue                *value,
						      GParamSpec            *pspec);

static GObjectClass *parent_class;

GType
gtk_file_chooser_dialog_get_type (void)
{
  static GType file_chooser_dialog_type = 0;

  if (!file_chooser_dialog_type)
    {
      static const GTypeInfo file_chooser_dialog_info =
      {
	sizeof (GtkFileChooserDialogClass),
	NULL,		/* base_init */
	NULL,		/* base_finalize */
	(GClassInitFunc) gtk_file_chooser_dialog_class_init,
	NULL,		/* class_finalize */
	NULL,		/* class_data */
	sizeof (GtkFileChooserDialog),
	0,		/* n_preallocs */
	(GInstanceInitFunc) gtk_file_chooser_dialog_init,
      };
      
      static const GInterfaceInfo file_chooser_info =
      {
	(GInterfaceInitFunc) _gtk_file_chooser_delegate_iface_init, /* interface_init */
	NULL,			                                    /* interface_finalize */
	NULL			                                    /* interface_data */
      };

      file_chooser_dialog_type = g_type_register_static (GTK_TYPE_DIALOG, "GtkFileChooserDialog",
							 &file_chooser_dialog_info, 0);
      g_type_add_interface_static (file_chooser_dialog_type,
				   GTK_TYPE_FILE_CHOOSER,
				   &file_chooser_info);
    }

  return file_chooser_dialog_type;
}

static void
gtk_file_chooser_dialog_class_init (GtkFileChooserDialogClass *class)
{
  GObjectClass *gobject_class = G_OBJECT_CLASS (class);

  parent_class = g_type_class_peek_parent (class);

  gobject_class->constructor = gtk_file_chooser_dialog_constructor;
  gobject_class->set_property = gtk_file_chooser_dialog_set_property;
  gobject_class->get_property = gtk_file_chooser_dialog_get_property;

  _gtk_file_chooser_install_properties (gobject_class);

  g_type_class_add_private (class, sizeof (GtkFileChooserDialogPrivate));
}

static void
gtk_file_chooser_dialog_init (GtkFileChooserDialog *dialog)
{
  GtkFileChooserDialogPrivate *priv = G_TYPE_INSTANCE_GET_PRIVATE (dialog,
								   GTK_TYPE_FILE_CHOOSER_DIALOG,
								   GtkFileChooserDialogPrivate);
  dialog->priv = priv;
}

/* Callback used when the user activates a file in the file chooser widget */
static void
file_chooser_widget_file_activated (GtkFileChooser       *chooser,
				    GtkFileChooserDialog *dialog)
{
  gtk_window_activate_default (GTK_WINDOW (dialog));
}

static GObject*
gtk_file_chooser_dialog_constructor (GType                  type,
				     guint                  n_construct_properties,
				     GObjectConstructParam *construct_params)
{
  GtkFileChooserDialogPrivate *priv;
  GObject *object;
								  
  object = parent_class->constructor (type,
				      n_construct_properties,
				      construct_params);
  priv = GTK_FILE_CHOOSER_DIALOG_GET_PRIVATE (object);

  gtk_widget_push_composite_child ();

  if (priv->file_system)
    priv->widget = g_object_new (GTK_TYPE_FILE_CHOOSER_WIDGET,
				 "file-system", priv->file_system,
				 NULL);
  else
    priv->widget = g_object_new (GTK_TYPE_FILE_CHOOSER_WIDGET, NULL);

  g_signal_connect (priv->widget, "file-activated",
		    G_CALLBACK (file_chooser_widget_file_activated), object);
  
  gtk_box_pack_start (GTK_BOX (GTK_DIALOG (object)->vbox), priv->widget, TRUE, TRUE, 0);
  gtk_widget_show (priv->widget);

  _gtk_file_chooser_set_delegate (GTK_FILE_CHOOSER (object),
				  GTK_FILE_CHOOSER (priv->widget));

  gtk_widget_pop_composite_child ();

  return object;
}

static void
gtk_file_chooser_dialog_set_property (GObject         *object,
				      guint            prop_id,
				      const GValue    *value,
				      GParamSpec      *pspec)
     
{
  GtkFileChooserDialogPrivate *priv = GTK_FILE_CHOOSER_DIALOG_GET_PRIVATE (object);

  switch (prop_id)
    {
    case GTK_FILE_CHOOSER_PROP_FILE_SYSTEM:
      {
	GtkFileSystem *file_system = g_value_get_object (value);
	if (priv->file_system != file_system)
	  {
	    if (priv->file_system)
	      g_object_unref (priv->file_system);
	    priv->file_system = file_system;
	    if (priv->file_system)
	      g_object_ref (priv->file_system);
	  }
      }
      break;
    default:
      g_object_set_property (G_OBJECT (priv->widget), pspec->name, value);
      break;
    }
}

static void
gtk_file_chooser_dialog_get_property (GObject         *object,
				      guint            prop_id,
				      GValue          *value,
				      GParamSpec      *pspec)
{
  GtkFileChooserDialogPrivate *priv = GTK_FILE_CHOOSER_DIALOG_GET_PRIVATE (object);
  
  g_object_get_property (G_OBJECT (priv->widget), pspec->name, value);
}

/**
 * gtk_file_chooser_dialog_new:
 * @title: Title of the dialog, or %NULL
 * @parent: Transient parent of the dialog, or %NULL
 * @action: Open or save mode for the dialog
 * @first_button_text: stock ID or text to go in the first button, or %NULL
 * @Varargs: response ID for the first button, then additional (button, id) pairs, ending with %NULL
 * 
 * Creates a new #GtkFileChooserDialog.  This function is analogous to
 * gtk_dialog_new_with_buttons().
 * 
 * Return value: a new #GtkFileChooserDialog
 **/
GtkWidget *
gtk_file_chooser_dialog_new (const gchar         *title,
			     GtkWindow           *parent,
			     GtkFileChooserAction action,
			     const gchar         *first_button_text,
			     ...)
{
  GtkWidget *result;
  va_list varargs;
  const char *button_text = first_button_text;
  gint response_id;
  
  result = g_object_new (GTK_TYPE_FILE_CHOOSER_DIALOG,
			 "title", title,
			 "action", action,
			 NULL);

  if (parent)
    gtk_window_set_transient_for (GTK_WINDOW (result), parent);

  va_start (varargs, first_button_text);

  while (button_text)
    {
      response_id = va_arg (varargs, gint);
      gtk_dialog_add_button (GTK_DIALOG (result), button_text, response_id);
      button_text = va_arg (varargs, const gchar *);
    }

  va_end (varargs);

  return result;
}
