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1 <!-- | |
2 Copyright (c) 2015 The Polymer Project Authors. All rights reserved. | |
3 This code may only be used under the BSD style license found at http://polymer.g
ithub.io/LICENSE.txt | |
4 The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt | |
5 The complete set of contributors may be found at http://polymer.github.io/CONTRI
BUTORS.txt | |
6 Code distributed by Google as part of the polymer project is also | |
7 subject to an additional IP rights grant found at http://polymer.github.io/PATEN
TS.txt | |
8 --> | |
9 | |
10 <link rel="import" href="../polymer/polymer.html"> | |
11 <link rel="import" href="../paper-ripple/paper-ripple.html"> | |
12 <link rel="import" href="../paper-styles/default-theme.html"> | |
13 <link rel="import" href="../paper-behaviors/paper-radio-button-behavior.html"> | |
14 | |
15 <!-- | |
16 `paper-radio-button` is a button that can be either checked or unchecked. | |
17 User can tap the radio button to check it. But it cannot be unchecked by | |
18 tapping once checked. | |
19 | |
20 Use `paper-radio-group` to group a set of radio buttons. When radio buttons | |
21 are inside a radio group, only one radio button in the group can be checked. | |
22 | |
23 Example: | |
24 | |
25 <paper-radio-button></paper-radio-button> | |
26 | |
27 ### Styling | |
28 | |
29 The following custom properties and mixins are available for styling: | |
30 | |
31 Custom property | Description | Default | |
32 ----------------|-------------|---------- | |
33 `--paper-radio-button-unchecked-color` | Radio button color when the input is no
t checked | `--primary-text-color` | |
34 `--paper-radio-button-unchecked-ink-color` | Selected/focus ripple color when th
e input is not checked | `--primary-text-color` | |
35 `--paper-radio-button-checked-color` | Radio button color when the input is chec
ked | `--default-primary-color` | |
36 `--paper-radio-button-checked-ink-color` | Selected/focus ripple color when the
input is checked | `--default-primary-color` | |
37 `--paper-radio-button-label-color` | Label color | `--primary-text-color` | |
38 | |
39 @group Paper Elements | |
40 @element paper-radio-button | |
41 @hero hero.svg | |
42 @demo demo/index.html | |
43 --> | |
44 | |
45 <style is="custom-style"> | |
46 :root { | |
47 --paper-radio-button-unchecked-color: var(--primary-text-color); | |
48 --paper-radio-button-unchecked-ink-color: var(--primary-text-color); | |
49 | |
50 --paper-radio-button-checked-color: var(--default-primary-color); | |
51 --paper-radio-button-checked-ink-color: var(--default-primary-color); | |
52 | |
53 --paper-radio-button-label-color: var(--primary-text-color); | |
54 } | |
55 </style> | |
56 | |
57 <dom-module id="paper-radio-button"> | |
58 | |
59 <link rel="import" type="css" href="paper-radio-button.css"> | |
60 | |
61 <template> | |
62 | |
63 <div id="radioContainer"> | |
64 <div id="offRadio"></div> | |
65 <div id="onRadio"></div> | |
66 <paper-ripple id="ink" class="circle" center checked$="[[checked]]"></pape
r-ripple> | |
67 </div> | |
68 | |
69 <div id="radioLabel" aria-hidden="true"><content></content></div> | |
70 | |
71 </template> | |
72 | |
73 <script> | |
74 Polymer({ | |
75 is: 'paper-radio-button', | |
76 | |
77 behaviors: [ | |
78 Polymer.PaperRadioButtonBehavior | |
79 ], | |
80 | |
81 hostAttributes: { | |
82 role: 'radio', | |
83 'aria-checked': false, | |
84 tabindex: 0 | |
85 }, | |
86 | |
87 properties: { | |
88 /** | |
89 * Fired when the checked state changes due to user interaction. | |
90 * | |
91 * @event change | |
92 */ | |
93 | |
94 /** | |
95 * Fired when the checked state changes. | |
96 * | |
97 * @event iron-change | |
98 */ | |
99 | |
100 /** | |
101 * Gets or sets the state, `true` is checked and `false` is unchecked. | |
102 */ | |
103 checked: { | |
104 type: Boolean, | |
105 value: false, | |
106 reflectToAttribute: true, | |
107 notify: true, | |
108 observer: '_checkedChanged' | |
109 }, | |
110 | |
111 /** | |
112 * If true, the button toggles the active state with each tap or press | |
113 * of the spacebar. | |
114 */ | |
115 toggles: { | |
116 type: Boolean, | |
117 value: true, | |
118 reflectToAttribute: true | |
119 } | |
120 }, | |
121 | |
122 ready: function() { | |
123 if (Polymer.dom(this).textContent == '') { | |
124 this.$.radioLabel.hidden = true; | |
125 } else { | |
126 this.setAttribute('aria-label', Polymer.dom(this).textContent); | |
127 } | |
128 this._isReady = true; | |
129 }, | |
130 | |
131 _buttonStateChanged: function() { | |
132 if (this.disabled) { | |
133 return; | |
134 } | |
135 if (this._isReady) { | |
136 this.checked = this.active; | |
137 } | |
138 }, | |
139 | |
140 _checkedChanged: function() { | |
141 this.setAttribute('aria-checked', this.checked ? 'true' : 'false'); | |
142 this.active = this.checked; | |
143 this.fire('iron-change'); | |
144 } | |
145 }) | |
146 </script> | |
147 | |
148 </dom-module> | |
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