lib/html/templates/html/dart2js/impl_LocalWindow.darttemplate

// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

class $CLASSNAME$EXTENDS$IMPLEMENTS native "@*DOMWindow" {

  _DocumentImpl get document => JS('_DocumentImpl', '#.document', this);

  Window _open2(url, name) => JS('Window', '#.open(#,#)', this, url, name);

  Window _open3(url, name, options) =>
      JS('Window', '#.open(#,#,#)', this, url, name, options);

  Window open(String url, String name, [String options]) {
    if (options == null) {
      return _DOMWindowCrossFrameImpl._createSafe(_open2(url, name));
    } else {
      return _DOMWindowCrossFrameImpl._createSafe(_open3(url, name, options));
    }
  }

  // API level getter and setter for Location.
  // TODO: The cross domain safe wrapper can be inserted here or folded into
  // _LocationWrapper.
  LocalLocation get location => _get_location();

  // TODO: consider forcing users to do: window.location.assign('string').
  /**
   * Sets the window's location, which causes the browser to navigate to the new
   * location. [value] may be a Location object or a string.
   */
  void set location(value) => _set_location(value);

  // Firefox work-around for Location.  The Firefox location object cannot be
  // made to behave like a Dart object so must be wrapped.

  LocalLocation _get_location() {
    var result = _location;
    if (_isDartLocation(result)) return result;  // e.g. on Chrome.
    if (null == _location_wrapper) {
      _location_wrapper = new _LocationWrapper(result);
    }
    return _location_wrapper;
  }

  void _set_location(value) {
    if (value is _LocationWrapper) {
      _location = value._ptr;
    } else {
      _location = value;
    }
  }

  var _location_wrapper;  // Cached wrapped Location object.

  // Native getter and setter to access raw Location object.
  Location get _location => JS('Location', '#.location', this);
  void set _location(Location value) {
    JS('void', '#.location = #', this, value);
  }
  // Prevent compiled from thinking 'location' property is available for a Dart
  // member.
  _protect_location() native 'location';

  static _isDartLocation(thing) {
    // On Firefox the code that implements 'is Location' fails to find the patch
    // stub on Object.prototype and throws an exception.
    try {
      return thing is Location;
    } catch (e) {
      return false;
    }
  }


  void requestLayoutFrame(TimeoutHandler callback) {
    _addMeasurementFrameCallback(callback);
  }

  /** @domName DOMWindow.requestAnimationFrame */
  int requestAnimationFrame(RequestAnimationFrameCallback callback) {
    _ensureRequestAnimationFrame();
    return _requestAnimationFrame(callback);
  }

  void cancelAnimationFrame(id) {
    _ensureRequestAnimationFrame();
    _cancelAnimationFrame(id);
  }

  int _requestAnimationFrame(RequestAnimationFrameCallback callback)
      native 'requestAnimationFrame';

  void _cancelAnimationFrame(int id)
      native 'cancelAnimationFrame';

  _ensureRequestAnimationFrame() {
    if (JS('bool',
           '!!(#.requestAnimationFrame && #.cancelAnimationFrame)', this, this))
      return;

    JS('void',
       r"""
  (function($this) {
   var vendors = ['ms', 'moz', 'webkit', 'o'];
   for (var i = 0; i < vendors.length && !$this.requestAnimationFrame; ++i) {
     $this.requestAnimationFrame = $this[vendors[i] + 'RequestAnimationFrame'];
     $this.cancelAnimationFrame =
         $this[vendors[i]+'CancelAnimationFrame'] ||
         $this[vendors[i]+'CancelRequestAnimationFrame'];
   }
   if ($this.requestAnimationFrame && $this.cancelAnimationFrame) return;
   $this.requestAnimationFrame = function(callback) {
      return window.setTimeout(function() {
        callback(Date.now());
      }, 16 /* 16ms ~= 60fps */);
   };
   $this.cancelAnimationFrame = function(id) { clearTimeout(id); }
  })(#)""",
       this);
  }


  _IDBFactoryImpl get indexedDB => _get_indexedDB();

  _IDBFactoryImpl _get_indexedDB() =>
      JS('_IDBFactoryImpl',
         '#.indexedDB || #.webkitIndexedDB || #.mozIndexedDB',
         this, this, this);

  // TODO(kasperl): Document these.
  lookupPort(String name) {
    var port = JSON.parse(localStorage['dart-port:$name']);
    return _deserialize(port);
  }

  registerPort(String name, var port) {
    var serialized = _serialize(port);
    localStorage['dart-port:$name'] = JSON.stringify(serialized);
  }

  String createObjectUrl(object) =>
      JS('String',
         '(window.URL || window.webkitURL).createObjectURL(#)', object);

  void revokeObjectUrl(String objectUrl) {
    JS('void',
       '(window.URL || window.webkitURL).revokeObjectURL(#)', objectUrl);
  }

$!MEMBERS
}