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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-tabs` is a `core-selector` styled to look like tabs. Tabs make it easy to
| |
| 12 explore and switch between different views or functional aspects of an app, or | |
| 13 to browse categorized data sets. | |
| 14 | |
| 15 Use `selected` property to get or set the selected tab. | |
| 16 | |
| 17 Example: | |
| 18 | |
| 19 <paper-tabs selected="0"> | |
| 20 <paper-tab>TAB 1</paper-tab> | |
| 21 <paper-tab>TAB 2</paper-tab> | |
| 22 <paper-tab>TAB 3</paper-tab> | |
| 23 </paper-tabs> | |
| 24 | |
| 25 See <a href="#paper-tab">paper-tab</a> for more information about | |
| 26 `paper-tab`. | |
| 27 | |
| 28 Styling tabs: | |
| 29 | |
| 30 To change the sliding bar color: | |
| 31 | |
| 32 paper-tabs.pink::shadow #selectionBar { | |
| 33 background-color: #ff4081; | |
| 34 } | |
| 35 | |
| 36 @group Paper Elements | |
| 37 @element paper-tabs | |
| 38 @extends core-selector | |
| 39 @homepage github.io | |
| 40 --> | |
| 41 | |
| 42 <link rel="import" href="../core-selector/core-selector.html"> | |
| 43 <link rel="import" href="paper-tab.html"> | |
| 44 | |
| 45 <polymer-element name="paper-tabs" extends="core-selector" attributes="noink nob
ar" role="tablist"> | |
| 46 <template> | |
| 47 | |
| 48 <link rel="stylesheet" href="paper-tabs.css"> | |
| 49 | |
| 50 <div id="tabsContainer" horizontal layout> | |
| 51 | |
| 52 <shadow></shadow> | |
| 53 <div id="selectionBar" hidden?="{{nobar}}" on-transitionend="{{barTransition
End}}"></div> | |
| 54 | |
| 55 </div> | |
| 56 | |
| 57 </template> | |
| 58 <script> | |
| 59 | |
| 60 Polymer('paper-tabs', { | |
| 61 | |
| 62 /** | |
| 63 * If true, ink effect is disabled. | |
| 64 * | |
| 65 * @attribute noink | |
| 66 * @type boolean | |
| 67 * @default false | |
| 68 */ | |
| 69 noink: false, | |
| 70 | |
| 71 /** | |
| 72 * If true, the bottom bar to indicate the selected tab will not be shown. | |
| 73 * | |
| 74 * @attribute nobar | |
| 75 * @type boolean | |
| 76 * @default false | |
| 77 */ | |
| 78 nobar: false, | |
| 79 | |
| 80 activateEvent: 'down', | |
| 81 | |
| 82 nostretch: false, | |
| 83 | |
| 84 selectedIndexChanged: function(old) { | |
| 85 var s = this.$.selectionBar.style; | |
| 86 | |
| 87 if (!this.selectedItem) { | |
| 88 s.width = 0; | |
| 89 s.left = 0; | |
| 90 return; | |
| 91 } | |
| 92 | |
| 93 var w = 100 / this.items.length; | |
| 94 | |
| 95 if (this.nostretch || old === null || old === -1) { | |
| 96 s.width = w + '%'; | |
| 97 s.left = this.selectedIndex * w + '%'; | |
| 98 return; | |
| 99 } | |
| 100 | |
| 101 var m = 5; | |
| 102 this.$.selectionBar.classList.add('expand'); | |
| 103 if (old < this.selectedIndex) { | |
| 104 s.width = w + w * (this.selectedIndex - old) - m + '%'; | |
| 105 this._transitionCounter = 1; | |
| 106 } else { | |
| 107 s.width = w + w * (old - this.selectedIndex) - m + '%'; | |
| 108 s.left = this.selectedIndex * w + m + '%'; | |
| 109 this._transitionCounter = 2; | |
| 110 } | |
| 111 }, | |
| 112 | |
| 113 barTransitionEnd: function(e) { | |
| 114 this._transitionCounter--; | |
| 115 var cl = this.$.selectionBar.classList; | |
| 116 if (cl.contains('expand') && !this._transitionCounter) { | |
| 117 cl.remove('expand'); | |
| 118 cl.add('contract'); | |
| 119 var s = this.$.selectionBar.style; | |
| 120 var w = 100 / this.items.length; | |
| 121 s.width = w + '%'; | |
| 122 s.left = this.selectedIndex * w + '%'; | |
| 123 } else if (cl.contains('contract')) { | |
| 124 cl.remove('contract'); | |
| 125 } | |
| 126 } | |
| 127 | |
| 128 }); | |
| 129 | |
| 130 </script> | |
| 131 </polymer-element> | |
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