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| 1 <!-- | |
| 2 @license | |
| 3 Copyright (c) 2015 The Polymer Project Authors. All rights reserved. | |
| 4 This code may only be used under the BSD style license found at http://polymer.g
ithub.io/LICENSE.txt | |
| 5 The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt | |
| 6 The complete set of contributors may be found at http://polymer.github.io/CONTRI
BUTORS.txt | |
| 7 Code distributed by Google as part of the polymer project is also | |
| 8 subject to an additional IP rights grant found at http://polymer.github.io/PATEN
TS.txt | |
| 9 --> | |
| 10 | |
| 11 <link rel="import" href="../polymer/polymer.html"> | |
| 12 <link rel="import" href="../iron-selector/iron-selectable.html"> | |
| 13 <link rel="import" href="../paper-radio-button/paper-radio-button.html"> | |
| 14 <link rel="import" href="../iron-a11y-keys-behavior/iron-a11y-keys-behavior.html
"> | |
| 15 | |
| 16 <!-- | |
| 17 `paper-radio-group` allows user to select only one radio button from a set. | |
| 18 Checking one radio button that belongs to a radio group unchecks any | |
| 19 previously checked radio button within the same group. Use | |
| 20 `selected` to get or set the selected radio button. | |
| 21 | |
| 22 Example: | |
| 23 | |
| 24 <paper-radio-group selected="small"> | |
| 25 <paper-radio-button name="small">Small</paper-radio-button> | |
| 26 <paper-radio-button name="medium">Medium</paper-radio-button> | |
| 27 <paper-radio-button name="large">Large</paper-radio-button> | |
| 28 </paper-radio-group> | |
| 29 | |
| 30 See <a href="paper-radio-button.html">paper-radio-button</a> for more | |
| 31 information about `paper-radio-button`. | |
| 32 | |
| 33 @group Paper Elements | |
| 34 @element paper-radio-group | |
| 35 @hero hero.svg | |
| 36 @demo demo/index.html | |
| 37 --> | |
| 38 | |
| 39 <dom-module name="paper-radio-group"> | |
| 40 <style> | |
| 41 :host { | |
| 42 display: inline-block; | |
| 43 } | |
| 44 | |
| 45 :host ::content > * { | |
| 46 padding: 12px; | |
| 47 } | |
| 48 </style> | |
| 49 | |
| 50 <template> | |
| 51 <content id="items" select="*"></content> | |
| 52 </template> | |
| 53 | |
| 54 </dom-module> | |
| 55 | |
| 56 <script> | |
| 57 Polymer({ | |
| 58 is: 'paper-radio-group', | |
| 59 | |
| 60 behaviors: [ | |
| 61 Polymer.IronA11yKeysBehavior, | |
| 62 Polymer.IronSelectableBehavior | |
| 63 ], | |
| 64 | |
| 65 hostAttributes: { | |
| 66 role: 'radiogroup', | |
| 67 tabindex: 0 | |
| 68 }, | |
| 69 | |
| 70 properties: { | |
| 71 /** | |
| 72 * Overriden from Polymer.IronSelectableBehavior | |
| 73 */ | |
| 74 attrForSelected: { | |
| 75 type: String, | |
| 76 value: 'name' | |
| 77 }, | |
| 78 | |
| 79 /** | |
| 80 * Overriden from Polymer.IronSelectableBehavior | |
| 81 */ | |
| 82 selectedAttribute: { | |
| 83 type: String, | |
| 84 value: 'checked' | |
| 85 }, | |
| 86 | |
| 87 /** | |
| 88 * Overriden from Polymer.IronSelectableBehavior | |
| 89 */ | |
| 90 selectable: { | |
| 91 type: String, | |
| 92 value: 'paper-radio-button' | |
| 93 } | |
| 94 }, | |
| 95 | |
| 96 keyBindings: { | |
| 97 'left up': 'selectPrevious', | |
| 98 'right down': 'selectNext', | |
| 99 }, | |
| 100 | |
| 101 /** | |
| 102 * Selects the given value. | |
| 103 */ | |
| 104 select: function(value) { | |
| 105 if (this.selected) { | |
| 106 var oldItem = this._valueToItem(this.selected); | |
| 107 | |
| 108 // Do not allow unchecking the selected item. | |
| 109 if (this.selected == value) { | |
| 110 oldItem.checked = true; | |
| 111 return; | |
| 112 } | |
| 113 | |
| 114 if (oldItem) | |
| 115 oldItem.checked = false; | |
| 116 } | |
| 117 | |
| 118 Polymer.IronSelectableBehavior.select.apply(this, [value]); | |
| 119 this.fire('paper-radio-group-changed'); | |
| 120 }, | |
| 121 | |
| 122 /** | |
| 123 * Selects the previous item. If the previous item is disabled, then it is | |
| 124 * skipped, and its previous item is selected | |
| 125 */ | |
| 126 selectPrevious: function() { | |
| 127 var length = this.items.length; | |
| 128 var newIndex = Number(this._valueToIndex(this.selected)); | |
| 129 | |
| 130 do { | |
| 131 newIndex = (newIndex - 1 + length) % length; | |
| 132 } while (this.items[newIndex].disabled) | |
| 133 | |
| 134 this.select(this._indexToValue(newIndex)); | |
| 135 }, | |
| 136 | |
| 137 /** | |
| 138 * Selects the next item. If the next item is disabled, then it is | |
| 139 * skipped, and the next item after it is selected. | |
| 140 */ | |
| 141 selectNext: function() { | |
| 142 var length = this.items.length; | |
| 143 var newIndex = Number(this._valueToIndex(this.selected)); | |
| 144 | |
| 145 do { | |
| 146 newIndex = (newIndex + 1 + length) % length; | |
| 147 } while (this.items[newIndex].disabled) | |
| 148 | |
| 149 this.select(this._indexToValue(newIndex)); | |
| 150 }, | |
| 151 }); | |
| 152 </script> | |
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Chromium Code Reviews
Issue 1269803005:
Remove third_party/polymer from .gitignore (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master