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Side by Side Diff: pkg/template_binding/lib/src/input_bindings.dart

Issue 335943003: merge to trunk all changes from 36817 until 37378 under the packages: polymer, (Closed) Base URL: http://dart.googlecode.com/svn/trunk/dart/
Patch Set: Created 6 years, 6 months ago
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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 template_binding; 5 part of template_binding;
6 6
7 7
8 // Note: the JavaScript version monkeypatches(!!) the close method of the passed 8 // Note: the JavaScript version monkeypatches(!!) the close method of the passed
9 // in Bindable. We use a wrapper instead. 9 // in Bindable. We use a wrapper instead.
10 class _InputBinding extends Bindable { 10 class _InputBinding extends Bindable {
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100 100
101 static Stream<Event> _getStreamForInputType(element) { 101 static Stream<Event> _getStreamForInputType(element) {
102 if (element is OptionElement) return element.onInput; 102 if (element is OptionElement) return element.onInput;
103 switch (element.type) { 103 switch (element.type) {
104 case 'checkbox': 104 case 'checkbox':
105 return _checkboxEventType.forTarget(element); 105 return _checkboxEventType.forTarget(element);
106 case 'radio': 106 case 'radio':
107 case 'select-multiple': 107 case 'select-multiple':
108 case 'select-one': 108 case 'select-one':
109 return element.onChange; 109 return element.onChange;
110 default: 110 case 'range':
111 return element.onInput; 111 if (window.navigator.userAgent.contains(new RegExp('Trident|MSIE'))) {
112 return element.onChange;
113 }
112 } 114 }
115 return element.onInput;
113 } 116 }
114 117
115 // |element| is assumed to be an HTMLInputElement with |type| == 'radio'. 118 // |element| is assumed to be an HTMLInputElement with |type| == 'radio'.
116 // Returns an array containing all radio buttons other than |element| that 119 // Returns an array containing all radio buttons other than |element| that
117 // have the same |name|, either in the form that |element| belongs to or, 120 // have the same |name|, either in the form that |element| belongs to or,
118 // if no form, in the document tree to which |element| belongs. 121 // if no form, in the document tree to which |element| belongs.
119 // 122 //
120 // This implementation is based upon the HTML spec definition of a 123 // This implementation is based upon the HTML spec definition of a
121 // "radio button group": 124 // "radio button group":
122 // http://www.whatwg.org/specs/web-apps/current-work/multipage/number-state. html#radio-button-group 125 // http://www.whatwg.org/specs/web-apps/current-work/multipage/number-state. html#radio-button-group
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141 144
142 // TODO(jmesserly,sigmund): I wonder how many bindings typically convert from 145 // TODO(jmesserly,sigmund): I wonder how many bindings typically convert from
143 // one type to another (e.g. value-as-number) and whether it is useful to 146 // one type to another (e.g. value-as-number) and whether it is useful to
144 // have something like a int/num binding converter (either as a base class or 147 // have something like a int/num binding converter (either as a base class or
145 // a wrapper). 148 // a wrapper).
146 static int _toInt(value) { 149 static int _toInt(value) {
147 if (value is String) return int.parse(value, onError: (_) => 0); 150 if (value is String) return int.parse(value, onError: (_) => 0);
148 return value is int ? value : 0; 151 return value is int ? value : 0;
149 } 152 }
150 } 153 }
154
155 _getTreeScope(Node node) {
156 Node parent;
157 while ((parent = node.parentNode) != null ) {
158 node = parent;
159 }
160
161 return _hasGetElementById(node) ? node : null;
162 }
163
164 // Note: JS code tests that getElementById is present. We can't do that
165 // easily, so instead check for the types known to implement it.
166 bool _hasGetElementById(Node node) =>
167 node is Document || node is ShadowRoot || node is SvgSvgElement;
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