| // Copyright (c) 2013, 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. |
| |
| part of dart.dom.html; |
| |
| _callCreated(receiver) { |
| return receiver.created(); |
| } |
| |
| _makeCreatedCallbackMethod() { |
| return JS('', |
| '''((function(invokeCallback) { |
| return function() { |
| return invokeCallback(this); |
| }; |
| })(#))''', |
| convertDartClosureToJS(_callCreated, 1)); |
| } |
| |
| void _registerCustomElement(context, document, String tag, Type type) { |
| // Function follows the same pattern as the following JavaScript code for |
| // registering a custom element. |
| // |
| // var proto = Object.create(HTMLElement.prototype, { |
| // createdCallback: { |
| // value: function() { |
| // window.console.log('here'); |
| // } |
| // } |
| // }); |
| // document.register('x-foo', { prototype: proto }); |
| // ... |
| // var e = document.createElement('x-foo'); |
| |
| var interceptorClass = findInterceptorConstructorForType(type); |
| if (interceptorClass == null) { |
| throw new ArgumentError(type); |
| } |
| |
| String baseClassName = findDispatchTagForInterceptorClass(interceptorClass); |
| if (baseClassName == null) { |
| throw new ArgumentError(type); |
| } |
| if (baseClassName == 'Element') baseClassName = 'HTMLElement'; |
| |
| var baseConstructor = JS('=Object', '#[#]', context, baseClassName); |
| |
| var properties = JS('=Object', '{}'); |
| |
| var jsCreatedCallback = _makeCreatedCallbackMethod(); |
| |
| JS('void', '#.createdCallback = #', properties, |
| JS('=Object', '{value: #}', jsCreatedCallback)); |
| |
| var baseProto = JS('=Object', '#.prototype', baseConstructor); |
| var proto = JS('=Object', 'Object.create(#, #)', baseProto, properties); |
| |
| var interceptor = JS('=Object', '#.prototype', interceptorClass); |
| |
| setNativeSubclassDispatchRecord(proto, interceptor); |
| |
| JS('void', '#.register(#, #)', |
| document, tag, JS('', '{prototype: #}', proto)); |
| } |