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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 --><html><head><link rel="import" href="../polymer/polymer.html"> |
| 9 <link rel="import" href="web-animations.html"> |
| 10 |
| 11 <!-- |
| 12 @group Polymer Core Elements |
| 13 |
| 14 `core-animation` is a convenience element to use web animations with Polymer ele
ments. It |
| 15 allows you to create a web animation declaratively. You can extend this class to
create |
| 16 new types of animations and combine them with `core-animation-group`. |
| 17 |
| 18 Example to create animation to fade out an element over 500ms: |
| 19 |
| 20 <core-animation id="fadeout" duration="500"> |
| 21 <core-animation-keyframe> |
| 22 <core-animation-prop name="opacity" value="1"></core-animation-prop> |
| 23 </core-animation-keyframe> |
| 24 <core-animation-keyframe> |
| 25 <core-animation-prop name="opacity" value="0"></core-animation-prop> |
| 26 </core-animation-keyframe> |
| 27 </core-animation> |
| 28 |
| 29 <div id="el">Fade me out</div> |
| 30 |
| 31 <script> |
| 32 var animation = document.getElementById('fadeout'); |
| 33 animation.target = document.getElementById('el'); |
| 34 animation.play(); |
| 35 </script> |
| 36 |
| 37 Or do the same imperatively: |
| 38 |
| 39 var animation = new CoreAnimation(); |
| 40 animation.duration = 500; |
| 41 animation.keyframes = [ |
| 42 {opacity: 1}, |
| 43 {opacity: 0} |
| 44 ]; |
| 45 animation.target = document.getElementById('el'); |
| 46 animation.play(); |
| 47 |
| 48 You can also provide a javascript function instead of keyframes to the animation
. This |
| 49 behaves essentially the same as `requestAnimationFrame`: |
| 50 |
| 51 var animation = new CoreAnimation(); |
| 52 animation.customEffect = function(timeFraction, target, animation) { |
| 53 // do something custom |
| 54 }; |
| 55 animation.play(); |
| 56 |
| 57 Elements that are targets to a `core-animation` are given the `core-animation-ta
rget` class. |
| 58 |
| 59 @element core-animation |
| 60 @status beta |
| 61 @homepage github.io |
| 62 --> |
| 63 </head><body><polymer-element name="core-animation" constructor="CoreAnimation"
attributes="target keyframes customEffect composite duration fill easing iterati
onStart iterationCount delay direction autoplay targetSelector" assetpath=""> |
| 64 |
| 65 </polymer-element> |
| 66 |
| 67 <!-- |
| 68 `core-animation-keyframe` represents a keyframe in a `core-animation`. Use them
as children of |
| 69 `core-animation` elements to create web animations declaratively. If the `offset
` property is |
| 70 unset, the keyframes will be distributed evenly within the animation duration. U
se |
| 71 `core-animation-prop` elements as children of this element to specify the CSS pr
operties for |
| 72 the animation. |
| 73 |
| 74 @element core-animation-keyframe |
| 75 @status beta |
| 76 @homepage github.io |
| 77 --> |
| 78 <polymer-element name="core-animation-keyframe" attributes="offset" assetpath=""
> |
| 79 |
| 80 </polymer-element> |
| 81 |
| 82 <!-- |
| 83 `core-animation-prop` represents a CSS property and value pair to use with |
| 84 `core-animation-keyframe`. |
| 85 |
| 86 @element core-animation-prop |
| 87 @status beta |
| 88 @homepage github.io |
| 89 --> |
| 90 <polymer-element name="core-animation-prop" attributes="name value" assetpath=""
> |
| 91 |
| 92 </polymer-element> |
| 93 <script charset="utf-8" src="core-animation-extracted.js"></script></body></html
> |
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Chromium Code Reviews
Issue 917523002:
Pull web-animations-js into third-party via the third_party/polymer/reproduce.sh script. Add necess… (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master