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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 <link rel="import" href="../polymer/polymer.html"> | |
| 11 <link rel="import" href="web-animations.html"> | |
| 12 | |
| 13 <!-- | |
| 14 @group Polymer Core Elements | |
| 15 | |
| 16 `core-animation` is a convenience element to use web animations with Polymer ele
ments. It | |
| 17 allows you to create a web animation declaratively. You can extend this class to
create | |
| 18 new types of animations and combine them with `core-animation-group`. | |
| 19 | |
| 20 Example to create animation to fade out an element over 500ms: | |
| 21 | |
| 22 <core-animation id="fadeout" duration="500"> | |
| 23 <core-animation-keyframe> | |
| 24 <core-animation-prop name="opacity" value="1"></core-animation-prop> | |
| 25 </core-animation-keyframe> | |
| 26 <core-animation-keyframe> | |
| 27 <core-animation-prop name="opacity" value="0"></core-animation-prop> | |
| 28 </core-animation-keyframe> | |
| 29 </core-animation> | |
| 30 | |
| 31 <div id="el">Fade me out</div> | |
| 32 | |
| 33 <script> | |
| 34 var animation = document.getElementById('fadeout'); | |
| 35 animation.target = document.getElementById('el'); | |
| 36 animation.play(); | |
| 37 </script> | |
| 38 | |
| 39 Or do the same imperatively: | |
| 40 | |
| 41 var animation = new CoreAnimation(); | |
| 42 animation.duration = 500; | |
| 43 animation.keyframes = [ | |
| 44 {opacity: 1}, | |
| 45 {opacity: 0} | |
| 46 ]; | |
| 47 animation.target = document.getElementById('el'); | |
| 48 animation.play(); | |
| 49 | |
| 50 You can also provide a javascript function instead of keyframes to the animation
. This | |
| 51 behaves essentially the same as `requestAnimationFrame`: | |
| 52 | |
| 53 var animation = new CoreAnimation(); | |
| 54 animation.customEffect = function(timeFraction, target, animation) { | |
| 55 // do something custom | |
| 56 }; | |
| 57 animation.play(); | |
| 58 | |
| 59 Elements that are targets to a `core-animation` are given the `core-animation-ta
rget` class. | |
| 60 | |
| 61 @element core-animation | |
| 62 @status beta | |
| 63 @homepage github.io | |
| 64 --> | |
| 65 <polymer-element name="core-animation" constructor="CoreAnimation" attributes="t
arget keyframes sample composite duration fill easing iterationStart iterationCo
unt delay direction autoplay targetSelector" assetpath=""> | |
| 66 | |
| 67 </polymer-element> | |
| 68 | |
| 69 <!-- | |
| 70 `core-animation-keyframe` represents a keyframe in a `core-animation`. Use them
as children of | |
| 71 `core-animation` elements to create web animations declaratively. If the `offset
` property is | |
| 72 unset, the keyframes will be distributed evenly within the animation duration. U
se | |
| 73 `core-animation-prop` elements as children of this element to specify the CSS pr
operties for | |
| 74 the animation. | |
| 75 | |
| 76 @element core-animation-keyframe | |
| 77 @status beta | |
| 78 @homepage github.io | |
| 79 --> | |
| 80 <polymer-element name="core-animation-keyframe" attributes="offset" assetpath=""
> | |
| 81 | |
| 82 </polymer-element> | |
| 83 | |
| 84 <!-- | |
| 85 `core-animation-prop` represents a CSS property and value pair to use with | |
| 86 `core-animation-keyframe`. | |
| 87 | |
| 88 @element core-animation-prop | |
| 89 @status beta | |
| 90 @homepage github.io | |
| 91 --> | |
| 92 <polymer-element name="core-animation-prop" attributes="name value" assetpath=""
> | |
| 93 | |
| 94 </polymer-element> | |
| 95 <script src="core-animation-extracted.js"></script> | |
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Chromium Code Reviews
Issue 666453002:
Removed Polymer elements depending on web-animations-js. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master