/* -*- Mode: javascript; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is ubufox.
 *
 * The Initial Developer of the Original Code is
 * Canonical Ltd.
 * Portions created by the Initial Developer are Copyright (C) 2011
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Chris Coulson <chris.coulson@canonical.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

const { utils: Cu } = Components;

var EXPORTED_SYMBOLS = [ "gio" ];

const GIO_LIBNAME = "gio-2.0";
const GIO_ABIS = [ 0 ];

Cu.import("resource://gre/modules/ctypes.jsm");
Cu.import("resource://ubufox/modules/utils.jsm");
Cu.import("resource://ubufox/libs/gobject.jsm");
Cu.import("resource://ubufox/libs/glib.jsm");

function getString(aWrappee) {
  let res = aWrappee.apply(null, Array.prototype.slice.call(arguments, 1));
  return res.isNull() ? null : res.readString();
}

function getOwnedString(aWrappee) {
  let res;
  try {
    res = aWrappee.apply(null, Array.prototype.slice.call(arguments, 1));
    return res.isNull() ? null : res.readString();
  } finally { glib.g_free(res); }
}

function gio_defines(lib) {
  // Enums
  CTypesUtils.defineFlags(this, "GFileMonitorFlags", 0, [
    "G_FILE_MONITOR_NONE",
    "G_FILE_MONITOR_WATCH_MOUNTS",
    "G_FILE_MONITOR_SEND_MOVED"
  ]);

  CTypesUtils.defineEnums(this, "GFileMonitorEvent", 0, [
    "G_FILE_MONITOR_EVENT_CHANGED",
    "G_FILE_MONITOR_EVENT_CHANGES_DONE_HINT",
    "G_FILE_MONITOR_EVENT_DELETED",
    "G_FILE_MONITOR_EVENT_CREATED",
    "G_FILE_MONITOR_EVENT_ATTRIBUTE_CHANGED",
    "G_FILE_MONITOR_EVENT_PRE_UNMOUNT",
    "G_FILE_MONITOR_EVENT_UNMOUNTED",
    "G_FILE_MONITOR_EVENT_MOVED"
  ]);

  // Types
  CTypesUtils.defineSimple(this, "GCancellable",
                           ctypes.StructType("GCancellable"));
  CTypesUtils.defineSimple(this, "GFile",
                           ctypes.StructType("GFile"));
  CTypesUtils.defineSimple(this, "GFileMonitor",
                           ctypes.StructType("GFileMonitor"));

  lib.lazy_bind("g_io_error_quark", glib.GQuark);
  lib.lazy_bind("g_file_new_for_path", this.GFile.ptr, [glib.gchar.ptr]);
  lib.lazy_bind("g_file_monitor_file", this.GFileMonitor.ptr, [this.GFile.ptr,
                this.GFileMonitorFlags, this.GCancellable.ptr,
                glib.GError.ptr]);
  lib.lazy_bind("g_file_monitor_directory", this.GFileMonitor.ptr,
                [this.GFile.ptr, this.GFileMonitorFlags,
                 this.GCancellable.ptr, glib.GError.ptr]);
  lib.lazy_bind_with_wrapper("g_file_get_path", getOwnedString,
                             glib.gchar.ptr, [this.GFile.ptr]);

  CTypesUtils.defineSimple(this, "G_IO_ERROR", this.g_io_error_quark());

  gobject.createSignal(this.GFileMonitor, "changed", ctypes.void_t,
                       [this.GFileMonitor.ptr, this.GFile.ptr,
                        this.GFile.ptr, this.GFileMonitorEvent,
                        glib.gpointer]);
}

var gio = new CTypesUtils.newLibrary(GIO_LIBNAME, GIO_ABIS, gio_defines);
