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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 The `core-range` element is used for managing a numeric value within a given | |
| 12 range. It has no visual appearance and is typically used in conjunction with | |
| 13 another element. | |
| 14 | |
| 15 One can build a progress bar using `core-range` like this: | |
| 16 | |
| 17 <core-range min="0" max="200" value="100" ratio="{{ratio}}"></core-range> | |
| 18 <div class="progress-bar" style="width: {{ratio}}%;"></div> | |
| 19 | |
| 20 @group Polymer Core Elements | |
| 21 @element core-range | |
| 22 @homepage github.io | |
| 23 | |
| 24 --> | |
| 25 | |
| 26 <link rel="import" href="../polymer/polymer.html"> | |
| 27 | |
| 28 <polymer-element name="core-range" attributes="value min max step ratio"> | |
| 29 <script> | |
| 30 | |
| 31 Polymer('core-range', { | |
| 32 | |
| 33 /** | |
| 34 * The number that represents the current value. | |
| 35 * | |
| 36 * @attribute value | |
| 37 * @type number | |
| 38 * @default 0 | |
| 39 */ | |
| 40 value: 0, | |
| 41 | |
| 42 /** | |
| 43 * The number that indicates the minimum value of the range. | |
| 44 * | |
| 45 * @attribute min | |
| 46 * @type number | |
| 47 * @default 0 | |
| 48 */ | |
| 49 min: 0, | |
| 50 | |
| 51 /** | |
| 52 * The number that indicates the maximum value of the range. | |
| 53 * | |
| 54 * @attribute max | |
| 55 * @type number | |
| 56 * @default 100 | |
| 57 */ | |
| 58 max: 100, | |
| 59 | |
| 60 /** | |
| 61 * Specifies the value granularity of the range's value. | |
| 62 * | |
| 63 * @attribute step | |
| 64 * @type number | |
| 65 * @default 1 | |
| 66 */ | |
| 67 step: 1, | |
| 68 | |
| 69 /** | |
| 70 * Returns the ratio of the value. | |
| 71 * | |
| 72 * @attribute ratio | |
| 73 * @type number | |
| 74 * @default 0 | |
| 75 */ | |
| 76 ratio: 0, | |
| 77 | |
| 78 observe: { | |
| 79 'value min max step': 'update' | |
| 80 }, | |
| 81 | |
| 82 calcRatio: function(value) { | |
| 83 return (this.clampValue(value) - this.min) / (this.max - this.min); | |
| 84 }, | |
| 85 | |
| 86 clampValue: function(value) { | |
| 87 return Math.min(this.max, Math.max(this.min, this.calcStep(value))); | |
| 88 }, | |
| 89 | |
| 90 calcStep: function(value) { | |
| 91 return this.step ? (Math.round(value / this.step) / (1 / this.step)) : val
ue; | |
| 92 }, | |
| 93 | |
| 94 validateValue: function() { | |
| 95 var v = this.clampValue(this.value); | |
| 96 this.value = this.oldValue = isNaN(v) ? this.oldValue : v; | |
| 97 return this.value !== v; | |
| 98 }, | |
| 99 | |
| 100 update: function() { | |
| 101 this.validateValue(); | |
| 102 this.ratio = this.calcRatio(this.value) * 100; | |
| 103 } | |
| 104 | |
| 105 }); | |
| 106 | |
| 107 </script> | |
| 108 </polymer-element> | |
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Chromium Code Reviews
Issue 786953007:
npm_modules: Fork bower_components into Polymer 0.4.0 and 0.5.0 versions (Closed)
Base URL: https://chromium.googlesource.com/infra/third_party/npm_modules.git@master