// Copyright 2014 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
//     You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//     See the License for the specific language governing permissions and
// limitations under the License.

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a,c,d,e,f=!!this._animation;f&&(a=this.playbackRate,c=this._paused,d=this.startTime,e=this.currentTime,this._animation.cancel(),this._animation._wrapper=null,this._animation=null),(!this.effect||this.effect instanceof window.KeyframeEffect)&&(this._animation=b.newUnderlyingAnimationForKeyframeEffect(this.effect),b.bindAnimationForKeyframeEffect(this)),(this.effect instanceof window.SequenceEffect||this.effect instanceof window.GroupEffect)&&(this._animation=b.newUnderlyingAnimationForGroup(this.effect),b.bindAnimationForGroup(this)),this.effect&&this.effect._onsample&&b.bindAnimationForCustomEffect(this),f&&(1!=a&&(this.playbackRate=a),null!==d?this.startTime=d:null!==e?this.currentTime=e:null!==this._holdTime&&(this.currentTime=this._holdTime),c&&this.pause()),this._updatePromises()},_updateChildren:function(){if(this.effect&&"idle"!=this.playState){var a=this.effect._timing.delay;this._childAnimations.forEach(function(c){this._arrangeChildren(c,a),this.effect instanceof window.SequenceEffect&&(a+=b.groupChildDuration(c.effect))}.bind(this))}},_setExternalAnimation:function(a){if(this.effect&&this._isGroup)for(var b=0;b<this.effect.children.length;b++)this.effect.children[b]._animation=a,this._childAnimations[b]._setExternalAnimation(a)},_constructChildAnimations:function(){if(this.effect&&this._isGroup){var a=this.effect._timing.delay;this._removeChildAnimations(),this.effect.children.forEach(function(c){var d=b.timeline._play(c);this._childAnimations.push(d),d.playbackRate=this.playbackRate,this._paused&&d.pause(),c._animation=this.effect._animation,this._arrangeChildren(d,a),this.effect instanceof window.SequenceEffect&&(a+=b.groupChildDuration(c))}.bind(this))}},_arrangeChildren:function(a,b){null===this.startTime?a.currentTime=this.currentTime-b/this.playbackRate:a.startTime!==this.startTime+b/this.playbackRate&&(a.startTime=this.startTime+b/this.playbackRate)},get timeline(){return this._timeline},get playState(){return this._animation?this._animation.playState:"idle"},get finished(){return window.Promise?(this._finishedPromise||(-1==b.animationsWithPromises.indexOf(this)&&b.animationsWithPromises.push(this),this._finishedPromise=new Promise(function(a,b){this._resolveFinishedPromise=function(){a(this)},this._rejectFinishedPromise=function(){b({type:DOMException.ABORT_ERR,name:"AbortError"})}}.bind(this)),"finished"==this.playState&&this._resolveFinishedPromise()),this._finishedPromise):(console.warn("Animation Promises require JavaScript Promise constructor"),null)},get ready(){return window.Promise?(this._readyPromise||(-1==b.animationsWithPromises.indexOf(this)&&b.animationsWithPromises.push(this),this._readyPromise=new Promise(function(a,b){this._resolveReadyPromise=function(){a(this)},this._rejectReadyPromise=function(){b({type:DOMException.ABORT_ERR,name:"AbortError"})}}.bind(this)),"pending"!==this.playState&&this._resolveReadyPromise()),this._readyPromise):(console.warn("Animation Promises require JavaScript Promise constructor"),null)},get onfinish(){return this._animation.onfinish},set onfinish(a){this._animation.onfinish="function"==typeof a?function(b){b.target=this,a.call(this,b)}.bind(this):a},get oncancel(){return this._animation.oncancel},set oncancel(a){this._animation.oncancel="function"==typeof a?function(b){b.target=this,a.call(this,b)}.bind(this):a},get currentTime(){this._updatePromises();var a=this._animation.currentTime;return this._updatePromises(),a},set currentTime(a){this._updatePromises(),this._animation.currentTime=isFinite(a)?a:Math.sign(a)*Number.MAX_VALUE,this._register(),this._forEachChild(function(b,c){b.currentTime=a-c}),this._updatePromises()},get startTime(){return this._animation.startTime},set startTime(a){this._updatePromises(),this._animation.startTime=isFinite(a)?a:Math.sign(a)*Number.MAX_VALUE,this._register(),this._forEachChild(function(b,c){b.startTime=a+c}),this._updatePromises()},get playbackRate(){return this._animation.playbackRate},set playbackRate(a){this._updatePromises();var b=this.currentTime;this._animation.playbackRate=a,this._forEachChild(function(b){b.playbackRate=a}),null!==b&&(this.currentTime=b),this._updatePromises()},play:function(){this._updatePromises(),this._paused=!1,this._animation.play(),-1==this._timeline._animations.indexOf(this)&&this._timeline._animations.push(this),this._register(),b.awaitStartTime(this),this._forEachChild(function(a){var b=a.currentTime;a.play(),a.currentTime=b}),this._updatePromises()},pause:function(){this._updatePromises(),this.currentTime&&(this._holdTime=this.currentTime),this._animation.pause(),this._register(),this._forEachChild(function(a){a.pause()}),this._paused=!0,this._updatePromises()},finish:function(){this._updatePromises(),this._animation.finish(),this._register(),this._updatePromises()},cancel:function(){this._updatePromises(),this._animation.cancel(),this._register(),this._removeChildAnimations(),this._updatePromises()},reverse:function(){this._updatePromises();var a=this.currentTime;this._animation.reverse(),this._forEachChild(function(a){a.reverse()}),null!==a&&(this.currentTime=a),this._updatePromises()},addEventListener:function(a,b){var c=b;"function"==typeof b&&(c=function(a){a.target=this,b.call(this,a)}.bind(this),b._wrapper=c),this._animation.addEventListener(a,c)},removeEventListener:function(a,b){this._animation.removeEventListener(a,b&&b._wrapper||b)},_removeChildAnimations:function(){for(;this._childAnimations.length;)this._childAnimations.pop().cancel()},_forEachChild:function(b){var c=0;if(this.effect.children&&this._childAnimations.length<this.effect.children.length&&this._constructChildAnimations(),this._childAnimations.forEach(function(a){b.call(this,a,c),this.effect instanceof window.SequenceEffect&&(c+=a.effect.activeDuration)}.bind(this)),"pending"!=this.playState){var d=this.effect._timing,e=this.currentTime;null!==e&&(e=a.calculateIterationProgress(a.calculateActiveDuration(d),e,d)),(null==e||isNaN(e))&&this._removeChildAnimations()}}},window.Animation=b.Animation}(a,c),function(a,b,c){function d(b){this._frames=a.normalizeKeyframes(b)}function e(){for(var a=!1;i.length;)i.shift()._updateChildren(),a=!0;return a}var f=function(a){if(a._animation=void 0,a instanceof window.SequenceEffect||a instanceof window.GroupEffect)for(var b=0;b<a.children.length;b++)f(a.children[b])};b.removeMulti=function(a){for(var b=[],c=0;c<a.length;c++){var d=a[c];d._parent?(-1==b.indexOf(d._parent)&&b.push(d._parent),d._parent.children.splice(d._parent.children.indexOf(d),1),d._parent=null,f(d)):d._animation&&d._animation.effect==d&&(d._animation.cancel(),d._animation.effect=new KeyframeEffect(null,[]),d._animation._callback&&(d._animation._callback._animation=null),d._animation._rebuildUnderlyingAnimation(),f(d))}for(c=0;c<b.length;c++)b[c]._rebuild()},b.KeyframeEffect=function(b,c,e,f){return this.target=b,this._parent=null,e=a.numericTimingToObject(e),this._timingInput=a.cloneTimingInput(e),this._timing=a.normalizeTimingInput(e),this.timing=a.makeTiming(e,!1,this),this.timing._effect=this,"function"==typeof c?(a.deprecated("Custom KeyframeEffect","2015-06-22","Use KeyframeEffect.onsample instead."),this._normalizedKeyframes=c):this._normalizedKeyframes=new d(c),this._keyframes=c,this.activeDuration=a.calculateActiveDuration(this._timing),this._id=f,this},b.KeyframeEffect.prototype={getFrames:function(){return"function"==typeof this._normalizedKeyframes?this._normalizedKeyframes:this._normalizedKeyframes._frames},set onsample(a){if("function"==typeof this.getFrames())throw new Error("Setting onsample on custom effect KeyframeEffect is not supported.");this._onsample=a,this._animation&&this._animation._rebuildUnderlyingAnimation()},get parent(){return this._parent},clone:function(){if("function"==typeof this.getFrames())throw new Error("Cloning custom effects is not supported.");var b=new KeyframeEffect(this.target,[],a.cloneTimingInput(this._timingInput),this._id);return b._normalizedKeyframes=this._normalizedKeyframes,b._keyframes=this._keyframes,b},remove:function(){b.removeMulti([this])}};var g=Element.prototype.animate;Element.prototype.animate=function(a,c){var d="";return c&&c.id&&(d=c.id),b.timeline._play(new b.KeyframeEffect(this,a,c,d))};var h=document.createElementNS("http://www.w3.org/1999/xhtml","div");b.newUnderlyingAnimationForKeyframeEffect=function(a){if(a){var b=a.target||h,c=a._keyframes;"function"==typeof c&&(c=[]);var d=a._timingInput;d.id=a._id}else var b=h,c=[],d=0;return g.apply(b,[c,d])},b.bindAnimationForKeyframeEffect=function(a){a.effect&&"function"==typeof a.effect._normalizedKeyframes&&b.bindAnimationForCustomEffect(a)};var i=[];b.awaitStartTime=function(a){null===a.startTime&&a._isGroup&&(0==i.length&&requestAnimationFrame(e),i.push(a))};var j=window.getComputedStyle;Object.defineProperty(window,"getComputedStyle",{configurable:!0,enumerable:!0,value:function(){b.timeline._updateAnimationsPromises();var a=j.apply(this,arguments);return e()&&(a=j.apply(this,arguments)),b.timeline._updateAnimationsPromises(),a}}),window.KeyframeEffect=b.KeyframeEffect,window.Element.prototype.getAnimations=function(){return document.timeline.getAnimations().filter(function(a){return null!==a.effect&&a.effect.target==this}.bind(this))}}(a,c),function(a,b,c){function d(a){a._registered||(a._registered=!0,g.push(a),h||(h=!0,requestAnimationFrame(e)))}function e(a){var b=g;g=[],b.sort(function(a,b){return a._sequenceNumber-b._sequenceNumber}),b=b.filter(function(a){a();var b=a._animation?a._animation.playState:"idle";return"running"!=b&&"pending"!=b&&(a._registered=!1),a._registered}),g.push.apply(g,b),g.length?(h=!0,requestAnimationFrame(e)):h=!1}var f=(document.createElementNS("http://www.w3.org/1999/xhtml","div"),0);b.bindAnimationForCustomEffect=function(b){var c,e=b.effect.target,g="function"==typeof b.effect.getFrames();c=g?b.effect.getFrames():b.effect._onsample;var h=b.effect.timing,i=null;h=a.normalizeTimingInput(h);var j=function(){var d=j._animation?j._animation.currentTime:null;null!==d&&(d=a.calculateIterationProgress(a.calculateActiveDuration(h),d,h),isNaN(d)&&(d=null)),d!==i&&(g?c(d,e,b.effect):c(d,b.effect,b.effect._animation)),i=d};j._animation=b,j._registered=!1,j._sequenceNumber=f++,b._callback=j,d(j)};var g=[],h=!1;b.Animation.prototype._register=function(){this._callback&&d(this._callback)}}(a,c),function(a,b,c){function d(a){return a._timing.delay+a.activeDuration+a._timing.endDelay}function e(b,c,d){this._id=d,this._parent=null,this.children=b||[],this._reparent(this.children),c=a.numericTimingToObject(c),this._timingInput=a.cloneTimingInput(c),this._timing=a.normalizeTimingInput(c,!0),this.timing=a.makeTiming(c,!0,this),this.timing._effect=this,"auto"===this._timing.duration&&(this._timing.duration=this.activeDuration)}window.SequenceEffect=function(){e.apply(this,arguments)},window.GroupEffect=function(){e.apply(this,arguments)},e.prototype={_isAncestor:function(a){for(var b=this;null!==b;){if(b==a)return!0;b=b._parent}return!1},_rebuild:function(){for(var a=this;a;)"auto"===a.timing.duration&&(a._timing.duration=a.activeDuration),a=a._parent;this._animation&&this._animation._rebuildUnderlyingAnimation()},_reparent:function(a){b.removeMulti(a);for(var c=0;c<a.length;c++)a[c]._parent=this},_putChild:function(a,b){for(var c=b?"Cannot append an ancestor or self":"Cannot prepend an ancestor or self",d=0;d<a.length;d++)if(this._isAncestor(a[d]))throw{type:DOMException.HIERARCHY_REQUEST_ERR,name:"HierarchyRequestError",message:c};for(var d=0;d<a.length;d++)b?this.children.push(a[d]):this.children.unshift(a[d]);this._reparent(a),this._rebuild()},append:function(){this._putChild(arguments,!0)},prepend:function(){this._putChild(arguments,!1)},get parent(){return this._parent},get firstChild(){return this.children.length?this.children[0]:null},get lastChild(){return this.children.length?this.children[this.children.length-1]:null},clone:function(){for(var b=a.cloneTimingInput(this._timingInput),c=[],d=0;d<this.children.length;d++)c.push(this.children[d].clone());return this instanceof GroupEffect?new GroupEffect(c,b):new SequenceEffect(c,b)},remove:function(){b.removeMulti([this])}},window.SequenceEffect.prototype=Object.create(e.prototype),Object.defineProperty(window.SequenceEffect.prototype,"activeDuration",{get:function(){var a=0;return this.children.forEach(function(b){a+=d(b)}),Math.max(a,0)}}),window.GroupEffect.prototype=Object.create(e.prototype),Object.defineProperty(window.GroupEffect.prototype,"activeDuration",{get:function(){var a=0;return this.children.forEach(function(b){a=Math.max(a,d(b))}),a}}),b.newUnderlyingAnimationForGroup=function(c){var d,e=null,f=function(b){var c=d._wrapper;if(c&&"pending"!=c.playState&&c.effect)return null==b?void c._removeChildAnimations():0==b&&c.playbackRate<0&&(e||(e=a.normalizeTimingInput(c.effect.timing)),b=a.calculateIterationProgress(a.calculateActiveDuration(e),-1,e),isNaN(b)||null==b)?(c._forEachChild(function(a){a.currentTime=-1}),void c._removeChildAnimations()):void 0},g=new KeyframeEffect(null,[],c._timing,c._id);return g.onsample=f,d=b.timeline._play(g)},b.bindAnimationForGroup=function(a){a._animation._wrapper=a,a._isGroup=!0,b.awaitStartTime(a),a._constructChildAnimations(),a._setExternalAnimation(a)},b.groupChildDuration=d}(a,c)}();
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