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| 1 <!-- | |
| 2 Copyright (c) 2015 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 <link rel="import" href="../polymer/polymer.html"> | |
| 10 <link rel="import" href="../iron-resizable-behavior/iron-resizable-behavior.html
"> | |
| 11 <link rel="import" href="../iron-selector/iron-selectable.html"> | |
| 12 <link rel="import" href="../paper-styles/paper-styles.html"> | |
| 13 <link rel="import" href="neon-animation-runner-behavior.html"> | |
| 14 <link rel="import" href="animations/opaque-animation.html"> | |
| 15 | |
| 16 <!-- | |
| 17 `neon-animated-pages` manages a set of pages and runs an animation when switchin
g between them. Its | |
| 18 children pages should implement `Polymer.NeonAnimatableBehavior` and define `ent
ry` and `exit` | |
| 19 animations to be run when switching to or switching out of the page. | |
| 20 | |
| 21 @group Neon Elements | |
| 22 @element neon-animated-pages | |
| 23 @demo demo/index.html | |
| 24 --> | |
| 25 | |
| 26 <dom-module id="neon-animated-pages"> | |
| 27 | |
| 28 <style> | |
| 29 | |
| 30 :host { | |
| 31 display: block; | |
| 32 position: relative; | |
| 33 } | |
| 34 | |
| 35 :host > ::content > * { | |
| 36 @apply(--layout-fit); | |
| 37 height: 100%; | |
| 38 } | |
| 39 | |
| 40 :host > ::content > :not(.iron-selected):not(.neon-animating) { | |
| 41 display: none !important; | |
| 42 } | |
| 43 | |
| 44 :host > ::content > .neon-animating { | |
| 45 pointer-events: none; | |
| 46 } | |
| 47 | |
| 48 </style> | |
| 49 | |
| 50 <template> | |
| 51 <content id="content"></content> | |
| 52 </template> | |
| 53 | |
| 54 </dom-module> | |
| 55 | |
| 56 <script> | |
| 57 (function() { | |
| 58 | |
| 59 Polymer({ | |
| 60 | |
| 61 is: 'neon-animated-pages', | |
| 62 | |
| 63 behaviors: [ | |
| 64 Polymer.IronResizableBehavior, | |
| 65 Polymer.IronSelectableBehavior, | |
| 66 Polymer.NeonAnimationRunnerBehavior | |
| 67 ], | |
| 68 | |
| 69 properties: { | |
| 70 | |
| 71 activateEvent: { | |
| 72 type: String, | |
| 73 value: '' | |
| 74 }, | |
| 75 | |
| 76 // if true, the initial page selection will also be animated according to
its animation config. | |
| 77 animateInitialSelection: { | |
| 78 type: Boolean, | |
| 79 value: false | |
| 80 } | |
| 81 | |
| 82 }, | |
| 83 | |
| 84 observers: [ | |
| 85 '_selectedChanged(selected)' | |
| 86 ], | |
| 87 | |
| 88 listeners: { | |
| 89 'neon-animation-finish': '_onNeonAnimationFinish' | |
| 90 }, | |
| 91 | |
| 92 _selectedChanged: function(selected) { | |
| 93 | |
| 94 var selectedPage = this.selectedItem; | |
| 95 var oldPage = this._prevSelected || false; | |
| 96 this._prevSelected = selectedPage; | |
| 97 | |
| 98 // on initial load and if animateInitialSelection is negated, simply displ
ay selectedPage. | |
| 99 if (!oldPage && !this.animateInitialSelection) { | |
| 100 this._completeSelectedChanged(); | |
| 101 return; | |
| 102 } | |
| 103 | |
| 104 // insert safari fix. | |
| 105 this.animationConfig = [{ | |
| 106 name: 'opaque-animation', | |
| 107 node: selectedPage | |
| 108 }]; | |
| 109 | |
| 110 // configure selectedPage animations. | |
| 111 if (this.entryAnimation) { | |
| 112 this.animationConfig.push({ | |
| 113 name: this.entryAnimation, | |
| 114 node: selectedPage | |
| 115 }); | |
| 116 } else { | |
| 117 if (selectedPage.getAnimationConfig) { | |
| 118 this.animationConfig.push({ | |
| 119 animatable: selectedPage, | |
| 120 type: 'entry' | |
| 121 }); | |
| 122 } | |
| 123 } | |
| 124 | |
| 125 // configure oldPage animations iff exists. | |
| 126 if (oldPage) { | |
| 127 | |
| 128 // cancel the currently running animation if one is ongoing. | |
| 129 if (oldPage.classList.contains('neon-animating')) { | |
| 130 this._squelchNextFinishEvent = true; | |
| 131 this.cancelAnimation(); | |
| 132 this._completeSelectedChanged(); | |
| 133 } | |
| 134 | |
| 135 // configure the animation. | |
| 136 if (this.exitAnimation) { | |
| 137 this.animationConfig.push({ | |
| 138 name: this.exitAnimation, | |
| 139 node: oldPage | |
| 140 }); | |
| 141 } else { | |
| 142 if (oldPage.getAnimationConfig) { | |
| 143 this.animationConfig.push({ | |
| 144 animatable: oldPage, | |
| 145 type: 'exit' | |
| 146 }); | |
| 147 } | |
| 148 } | |
| 149 | |
| 150 // display the oldPage during the transition. | |
| 151 oldPage.classList.add('neon-animating'); | |
| 152 } | |
| 153 | |
| 154 // display the selectedPage during the transition. | |
| 155 selectedPage.classList.add('neon-animating'); | |
| 156 | |
| 157 // actually run the animations. | |
| 158 if (this.animationConfig.length > 1) { | |
| 159 | |
| 160 // on first load, ensure we run animations only after element is attache
d. | |
| 161 if (!this.isAttached) { | |
| 162 this.async(function () { | |
| 163 this.playAnimation(null, { | |
| 164 fromPage: null, | |
| 165 toPage: selectedPage | |
| 166 }); | |
| 167 }); | |
| 168 | |
| 169 } else { | |
| 170 this.playAnimation(null, { | |
| 171 fromPage: oldPage, | |
| 172 toPage: selectedPage | |
| 173 }); | |
| 174 } | |
| 175 | |
| 176 } else { | |
| 177 this._completeSelectedChanged(oldPage, selectedPage); | |
| 178 } | |
| 179 }, | |
| 180 | |
| 181 _completeSelectedChanged: function(oldPage, selectedPage) { | |
| 182 if (selectedPage) { | |
| 183 selectedPage.classList.remove('neon-animating'); | |
| 184 } | |
| 185 if (oldPage) { | |
| 186 oldPage.classList.remove('neon-animating'); | |
| 187 } | |
| 188 if (!selectedPage || !oldPage) { | |
| 189 var nodes = Polymer.dom(this.$.content).getDistributedNodes(); | |
| 190 for (var node, index = 0; node = nodes[index]; index++) { | |
| 191 node.classList && node.classList.remove('neon-animating'); | |
| 192 } | |
| 193 } | |
| 194 this.async(this.notifyResize); | |
| 195 }, | |
| 196 | |
| 197 _onNeonAnimationFinish: function(event) { | |
| 198 if (this._squelchNextFinishEvent) { | |
| 199 this._squelchNextFinishEvent = false; | |
| 200 return; | |
| 201 } | |
| 202 this._completeSelectedChanged(event.detail.fromPage, event.detail.toPage); | |
| 203 } | |
| 204 | |
| 205 }) | |
| 206 | |
| 207 })(); | |
| 208 </script> | |
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