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.github.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/CONTRIBUTORS.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/PATENTS.txt 9 --> 10 11 <link rel="import" href="../../polymer/polymer.html"> 12 <link rel="import" href="../neon-shared-element-animation-behavior.html"> 13 <link rel="import" href="../web-animations.html"> 14 15 <!-- 16 `<ripple-animation>` scales and transform an element such that it appears to ripple from either 17 a shared element, or from a screen position, to full screen. 18 19 If using as a shared element animation in `<neon-animated-pages>`, use this animation in an `exit` 20 animation in the source page and in an `entry` animation in the destination page. Also, define the 21 hero elements in the `sharedElements` property (not a configuration property, see 22 `Polymer.NeonSharedElementAnimatableBehavior`). 23 24 If using a screen position, define the `gesture` property. 25 26 Configuration: 27 ``` 28 { 29 name: 'ripple-animation`. 30 id: <shared-element-id>, /* set this or gesture */ 31 gesture: {x: <page-x>, y: <page-y>}, /* set this or id */ 32 timing: <animation-timing>, 33 toPage: <node>, /* define for the destination page */ 34 fromPage: <node>, /* define for the source page */ 35 } 36 ``` 37 --> 38 39 <script> 40 41 Polymer({ 42 43 is: 'ripple-animation', 44 45 behaviors: [ 46 Polymer.NeonSharedElementAnimationBehavior 47 ], 48 49 configure: function(config) { 50 var shared = this.findSharedElements(config); 51 if (!shared) { 52 return null; 53 } 54 55 var translateX, translateY; 56 var toRect = shared.to.getBoundingClientRect(); 57 if (config.gesture) { 58 translateX = config.gesture.x - (toRect.left + (toRect.width / 2)); 59 translateY = config.gesture.y - (toRect.top + (toRect.height / 2)); 60 } else { 61 var fromRect = shared.from.getBoundingClientRect(); 62 translateX = (fromRect.left + (fromRect.width / 2)) - (toRect.left + (toRect.width / 2)); 63 translateY = (fromRect.top + (fromRect.height / 2)) - (toRect.top + (toRect.height / 2)); 64 } 65 var translate = 'translate(' + translateX + 'px,' + translateY + 'px)'; 66 67 var size = Math.max(toRect.width + Math.abs(translateX) * 2, toRect.height + Math.abs(translateY) * 2); 68 var diameter = Math.sqrt(2 * size * size); 69 var scaleX = diameter / toRect.width; 70 var scaleY = diameter / toRect.height; 71 var scale = 'scale(' + scaleX + ',' + scaleY + ')'; 72 73 this._effect = new KeyframeEffect(shared.to, [ 74 {'transform': translate + ' scale(0)'}, 75 {'transform': translate + ' ' + scale} 76 ], this.timingFromConfig(config)); 77 78 this.setPrefixedProperty(shared.to, 'transformOrigin', '50% 50%'); 79 shared.to.style.borderRadius = '50%'; 80 81 return this._effect; 82 }, 83 84 complete: function() { 85 if (this.sharedElements) { 86 this.setPrefixedProperty(this.sharedElements.to, 'transformOrigin', ''); 87 this.sharedElements.to.style.borderRadius = ''; 88 } 89 } 90 91 }); 92 93 </script> 94
