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1 <!-- | |
2 Copyright (c) 2014 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 <!-- | |
11 `paper-toggle-button` provides a ON/OFF switch that user can toggle the state | |
12 by tapping or by dragging the swtich. | |
13 | |
14 Example: | |
15 | |
16 <paper-toggle-button></paper-toggle-button> | |
17 | |
18 Styling toggle button: | |
19 | |
20 To change the ink color for checked state: | |
21 | |
22 paper-toggle-button::shadow paper-radio-button::shadow #ink[checked] { | |
23 color: #4285f4; | |
24 } | |
25 | |
26 To change the radio checked color: | |
27 | |
28 paper-toggle-button::shadow paper-radio-button::shadow #onRadio { | |
29 background-color: #4285f4; | |
30 } | |
31 | |
32 To change the bar color for checked state: | |
33 | |
34 paper-toggle-button::shadow #toggleBar[checked] { | |
35 background-color: #4285f4; | |
36 } | |
37 | |
38 To change the ink color for unchecked state: | |
39 | |
40 paper-toggle-button::shadow paper-radio-button::shadow #ink { | |
41 color: #b5b5b5; | |
42 } | |
43 | |
44 To change the radio unchecked color: | |
45 | |
46 paper-toggle-button::shadow paper-radio-button::shadow #offRadio { | |
47 border-color: #b5b5b5; | |
48 } | |
49 | |
50 To change the bar color for unchecked state: | |
51 | |
52 paper-toggle-button::shadow #toggleBar { | |
53 background-color: red; | |
54 } | |
55 | |
56 @group Paper Elements | |
57 @element paper-toggle-button | |
58 @homepage github.io | |
59 --> | |
60 | |
61 <link rel="import" href="../paper-radio-button/paper-radio-button.html"> | |
62 | |
63 <polymer-element name="paper-toggle-button" attributes="checked" role="button" a
ria-pressed="false" tabindex="0"> | |
64 <template> | |
65 | |
66 <link rel="stylesheet" href="paper-toggle-button.css"> | |
67 | |
68 <div id="toggleContainer"> | |
69 | |
70 <div id="toggleBar" checked?="{{checked}}"></div> | |
71 | |
72 <paper-radio-button id="toggleRadio" toggles checked="{{checked}}" on-change
="{{changeAction}}" on-core-change="{{stopPropagation}}" | |
73 on-trackstart="{{trackStart}}" on-trackx="{{trackx}}" on-trackend="{{tra
ckEnd}}"></paper-radio-button> | |
74 | |
75 </div> | |
76 | |
77 </template> | |
78 <script> | |
79 | |
80 Polymer('paper-toggle-button', { | |
81 | |
82 /** | |
83 * Fired when the checked state changes due to user interaction. | |
84 * | |
85 * @event change | |
86 */ | |
87 | |
88 /** | |
89 * Fired when the checked state changes. | |
90 * | |
91 * @event core-change | |
92 */ | |
93 | |
94 /** | |
95 * Gets or sets the state, `true` is checked and `false` is unchecked. | |
96 * | |
97 * @attribute checked | |
98 * @type boolean | |
99 * @default false | |
100 */ | |
101 checked: false, | |
102 | |
103 trackStart: function(e) { | |
104 this._w = this.$.toggleBar.offsetLeft + this.$.toggleBar.offsetWidth; | |
105 e.preventTap(); | |
106 }, | |
107 | |
108 trackx: function(e) { | |
109 this._x = Math.min(this._w, | |
110 Math.max(0, this.checked ? this._w + e.dx : e.dx)); | |
111 this.$.toggleRadio.classList.add('dragging'); | |
112 var s = this.$.toggleRadio.style; | |
113 s.webkitTransform = s.transform = 'translate3d(' + this._x + 'px,0,0)'; | |
114 }, | |
115 | |
116 trackEnd: function() { | |
117 var s = this.$.toggleRadio.style; | |
118 s.transform = s.webkitTransform = ''; | |
119 this.$.toggleRadio.classList.remove('dragging'); | |
120 var old = this.checked; | |
121 this.checked = Math.abs(this._x) > this._w / 2; | |
122 if (this.checked !== old) { | |
123 this.fire('change'); | |
124 } | |
125 }, | |
126 | |
127 checkedChanged: function() { | |
128 this.setAttribute('aria-pressed', Boolean(this.checked)); | |
129 this.fire('core-change'); | |
130 }, | |
131 | |
132 changeAction: function(e) { | |
133 e.stopPropagation(); | |
134 this.fire('change'); | |
135 }, | |
136 | |
137 stopPropagation: function(e) { | |
138 e.stopPropagation(); | |
139 } | |
140 | |
141 }); | |
142 | |
143 </script> | |
144 </polymer-element> | |
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