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1 <!-- | |
2 @license | |
3 Copyright (c) 2015 The Polymer Project Authors. All rights reserved. | |
4 This code may only be used under the BSD style license found at http://polymer.g
ithub.io/LICENSE.txt | |
5 The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt | |
6 The complete set of contributors may be found at http://polymer.github.io/CONTRI
BUTORS.txt | |
7 Code distributed by Google as part of the polymer project is also | |
8 subject to an additional IP rights grant found at http://polymer.github.io/PATEN
TS.txt | |
9 --> | |
10 | |
11 | |
12 <link rel="import" href="../../polymer/polymer.html"> | |
13 <link rel="import" href="../neon-shared-element-animation-behavior.html"> | |
14 <link rel="import" href="../web-animations.html"> | |
15 | |
16 <!-- | |
17 `<reverse-ripple-animation>` scales and transform an element such that it appear
s to ripple down from this element, to either | |
18 a shared element, or a screen position. | |
19 | |
20 If using as a shared element animation in `<neon-animated-pages>`, use this anim
ation in an `exit` | |
21 animation in the source page and in an `entry` animation in the destination page
. Also, define the | |
22 reverse-ripple elements in the `sharedElements` property (not a configuration pr
operty, see | |
23 `Polymer.NeonSharedElementAnimatableBehavior`). | |
24 If using a screen position, define the `gesture` property. | |
25 Configuration: | |
26 ``` | |
27 { | |
28 name: 'reverse-ripple-animation`. | |
29 id: <shared-element-id>, /* set this or gesture */ | |
30 gesture: {x: <page-x>, y: <page-y>}, /* set this or id */ | |
31 timing: <animation-timing>, | |
32 toPage: <node>, /* define for the destination page */ | |
33 fromPage: <node>, /* define for the source page */ | |
34 } | |
35 ``` | |
36 --> | |
37 | |
38 <script> | |
39 Polymer({ | |
40 is: 'reverse-ripple-animation', | |
41 | |
42 behaviors: [ | |
43 Polymer.NeonSharedElementAnimationBehavior | |
44 ], | |
45 | |
46 configure: function(config) { | |
47 var shared = this.findSharedElements(config); | |
48 if (!shared) { | |
49 return null; | |
50 } | |
51 | |
52 var translateX, translateY; | |
53 var fromRect = shared.from.getBoundingClientRect(); | |
54 if (config.gesture) { | |
55 translateX = config.gesture.x - (fromRect.left + (fromRect.width / 2)); | |
56 translateY = config.gesture.y - (fromRect.top + (fromRect.height / 2)); | |
57 } else { | |
58 var toRect = shared.to.getBoundingClientRect(); | |
59 translateX = (toRect.left + (toRect.width / 2)) - (fromRect.left + (from
Rect.width / 2)); | |
60 translateY = (toRect.top + (toRect.height / 2)) - (fromRect.top + (fromR
ect.height / 2)); | |
61 } | |
62 var translate = 'translate(' + translateX + 'px,' + translateY + 'px)'; | |
63 | |
64 var size = Math.max(fromRect.width + Math.abs(translateX) * 2, fromRect.he
ight + Math.abs(translateY) * 2); | |
65 var diameter = Math.sqrt(2 * size * size); | |
66 var scaleX = diameter / fromRect.width; | |
67 var scaleY = diameter / fromRect.height; | |
68 var scale = 'scale(' + scaleX + ',' + scaleY + ')'; | |
69 | |
70 this.setPrefixedProperty(shared.from, 'transformOrigin', '50% 50%'); | |
71 shared.from.style.borderRadius = '50%'; | |
72 | |
73 this._effect = new KeyframeEffect(shared.from, [ | |
74 {'transform': translate + ' ' + scale}, | |
75 {'transform': translate + ' scale(0)'} | |
76 ], this.timingFromConfig(config)); | |
77 return this._effect; | |
78 }, | |
79 | |
80 complete: function() { | |
81 if (this.sharedElements) { | |
82 this.setPrefixedProperty(this.sharedElements.from, 'transformOrigin', ''
); | |
83 this.sharedElements.from.style.borderRadius = ''; | |
84 } | |
85 } | |
86 }); | |
87 </script> | |
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