OLD | NEW |
1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 part of dart.dom.html; | 5 part of dart.dom.html; |
6 | 6 |
7 _callConstructor(constructor, interceptor) { | 7 _callConstructor(constructor, interceptor) { |
8 return (receiver) { | 8 return (receiver) { |
9 setNativeSubclassDispatchRecord(receiver, interceptor); | 9 setNativeSubclassDispatchRecord(receiver, interceptor); |
10 | 10 |
(...skipping 69 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
80 getNativeInterceptor(new Element.tag('article')); | 80 getNativeInterceptor(new Element.tag('article')); |
81 | 81 |
82 String baseClassName = findDispatchTagForInterceptorClass(interceptorClass); | 82 String baseClassName = findDispatchTagForInterceptorClass(interceptorClass); |
83 if (baseClassName == null) { | 83 if (baseClassName == null) { |
84 throw new ArgumentError(type); | 84 throw new ArgumentError(type); |
85 } | 85 } |
86 | 86 |
87 if (extendsTagName == null) { | 87 if (extendsTagName == null) { |
88 if (baseClassName != 'HTMLElement') { | 88 if (baseClassName != 'HTMLElement') { |
89 throw new UnsupportedError('Class must provide extendsTag if base ' | 89 throw new UnsupportedError('Class must provide extendsTag if base ' |
90 'native class is not HTMLElement'); | 90 'native class is not HtmlElement'); |
91 } | 91 } |
92 } else { | 92 } else { |
93 if (!JS('bool', '(#.createElement(#) instanceof window[#])', | 93 if (!JS('bool', '(#.createElement(#) instanceof window[#])', |
94 document, extendsTagName, baseClassName)) { | 94 document, extendsTagName, baseClassName)) { |
95 throw new UnsupportedError('extendsTag does not match base native class'); | 95 throw new UnsupportedError('extendsTag does not match base native class'); |
96 } | 96 } |
97 } | 97 } |
98 | 98 |
99 var baseConstructor = JS('=Object', '#[#]', context, baseClassName); | 99 var baseConstructor = JS('=Object', '#[#]', context, baseClassName); |
100 | 100 |
(...skipping 20 matching lines...) Expand all Loading... |
121 JS('=Object', '#.extends = #', options, extendsTagName); | 121 JS('=Object', '#.extends = #', options, extendsTagName); |
122 } | 122 } |
123 | 123 |
124 JS('void', '#.registerElement(#, #)', document, tag, options); | 124 JS('void', '#.registerElement(#, #)', document, tag, options); |
125 } | 125 } |
126 | 126 |
127 //// Called by Element.created to do validation & initialization. | 127 //// Called by Element.created to do validation & initialization. |
128 void _initializeCustomElement(Element e) { | 128 void _initializeCustomElement(Element e) { |
129 // TODO(blois): Add validation that this is only in response to an upgrade. | 129 // TODO(blois): Add validation that this is only in response to an upgrade. |
130 } | 130 } |
| 131 |
| 132 class _JSElementUpgrader implements ElementUpgrader { |
| 133 var _interceptor; |
| 134 var _baseClassName; |
| 135 var _constructor; |
| 136 |
| 137 _JSElementUpgrader(Document document, Type type, String extendsTag) { |
| 138 var interceptorClass = findInterceptorConstructorForType(type); |
| 139 if (interceptorClass == null) { |
| 140 throw new ArgumentError(type); |
| 141 } |
| 142 |
| 143 _constructor = findConstructorForNativeSubclassType(type, 'created'); |
| 144 if (_constructor == null) { |
| 145 throw new ArgumentError("$type has no constructor called 'created'"); |
| 146 } |
| 147 |
| 148 // Workaround for 13190- use an article element to ensure that HTMLElement's |
| 149 // interceptor is resolved correctly. |
| 150 getNativeInterceptor(new Element.tag('article')); |
| 151 |
| 152 _baseClassName = findDispatchTagForInterceptorClass(interceptorClass); |
| 153 if (_baseClassName == null) { |
| 154 throw new ArgumentError(type); |
| 155 } |
| 156 |
| 157 if (extendsTag == null) { |
| 158 if (_baseClassName != 'HTMLElement') { |
| 159 throw new UnsupportedError('Class must provide extendsTag if base ' |
| 160 'native class is not HtmlElement'); |
| 161 } |
| 162 } else { |
| 163 if (!JS('bool', '(#.createElement(#) instanceof window[#])', |
| 164 document, extendsTag, _baseClassName)) { |
| 165 throw new UnsupportedError( |
| 166 'extendsTag does not match base native class'); |
| 167 } |
| 168 } |
| 169 |
| 170 _interceptor = JS('=Object', '#.prototype', interceptorClass); |
| 171 } |
| 172 |
| 173 Element upgrade(Element element) { |
| 174 if (!JS('bool', '(# instanceof window[#])', element, _baseClassName)) { |
| 175 throw new ArgumentError('element is not subclass of $_baseClassName'); |
| 176 } |
| 177 |
| 178 setNativeSubclassDispatchRecord(element, _interceptor); |
| 179 JS('', '#(#)', _constructor, element); |
| 180 return element; |
| 181 } |
| 182 } |
OLD | NEW |