1<!-- 2@license 3Copyright (c) 2015 The Polymer Project Authors. All rights reserved. 4This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt 5The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt 6The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt 7Code distributed by Google as part of the polymer project is also 8subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt 9--> 10 11<link rel="import" href="../polymer/polymer.html"> 12<link rel="import" href="../iron-flex-layout/iron-flex-layout.html"> 13<link rel="import" href="../paper-styles/color.html"> 14<link rel="import" href="paper-spinner-behavior.html"> 15<link rel="import" href="paper-spinner-styles.html"> 16 17<!-- 18Material design: [Progress & activity](https://www.google.com/design/spec/components/progress-activity.html) 19 20Element providing a multiple color material design circular spinner. 21 22 <paper-spinner active></paper-spinner> 23 24The default spinner cycles between four layers of colors; by default they are 25blue, red, yellow and green. It can be customized to cycle between four different 26colors. Use <paper-spinner-lite> for single color spinners. 27 28### Accessibility 29 30Alt attribute should be set to provide adequate context for accessibility. If not provided, 31it defaults to 'loading'. 32Empty alt can be provided to mark the element as decorative if alternative content is provided 33in another form (e.g. a text block following the spinner). 34 35 <paper-spinner alt="Loading contacts list" active></paper-spinner> 36 37### Styling 38 39The following custom properties and mixins are available for styling: 40 41Custom property | Description | Default 42----------------|-------------|---------- 43`--paper-spinner-layer-1-color` | Color of the first spinner rotation | `--google-blue-500` 44`--paper-spinner-layer-2-color` | Color of the second spinner rotation | `--google-red-500` 45`--paper-spinner-layer-3-color` | Color of the third spinner rotation | `--google-yellow-500` 46`--paper-spinner-layer-4-color` | Color of the fourth spinner rotation | `--google-green-500` 47`--paper-spinner-stroke-width` | The width of the spinner stroke | 3px 48 49@group Paper Elements 50@element paper-spinner 51@hero hero.svg 52@demo demo/index.html 53--> 54 55<dom-module id="paper-spinner"> 56 <template strip-whitespace> 57 <style include="paper-spinner-styles"></style> 58 59 <div id="spinnerContainer" class-name="[[__computeContainerClasses(active, __coolingDown)]]"> 60 <div class="spinner-layer layer-1"> 61 <div class="circle-clipper left"></div> 62 <div class="circle-clipper right"></div> 63 </div> 64 65 <div class="spinner-layer layer-2"> 66 <div class="circle-clipper left"></div> 67 <div class="circle-clipper right"></div> 68 </div> 69 70 <div class="spinner-layer layer-3"> 71 <div class="circle-clipper left"></div> 72 <div class="circle-clipper right"></div> 73 </div> 74 75 <div class="spinner-layer layer-4"> 76 <div class="circle-clipper left"></div> 77 <div class="circle-clipper right"></div> 78 </div> 79 </div> 80 </template> 81 82 <script> 83 Polymer({ 84 is: 'paper-spinner', 85 86 behaviors: [ 87 Polymer.PaperSpinnerBehavior 88 ] 89 }); 90 </script> 91</dom-module> 92
