// Copyright (c) 2012 The Polymer Authors. All rights reserved.
//
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//
//    * Redistributions of source code must retain the above copyright
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// in the documentation and/or other materials provided with the
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// contributors may be used to endorse or promote products derived from
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//
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c=window.PointerEventsPolyfill;c&&c.register(b),a.dispatcher.registerTarget(b)},b.registerTarget(document)}(window.PointerGestures),function(a){var b=a.dispatcher,c={HOLD_DELAY:200,WIGGLE_THRESHOLD:16,events:["pointerdown","pointermove","pointerup","pointercancel"],heldPointer:null,holdJob:null,pulse:function(){var a=Date.now()-this.heldPointer.timeStamp,b=this.held?"holdpulse":"hold";this.fireHold(b,a),this.held=!0},cancel:function(){clearInterval(this.holdJob),this.held&&this.fireHold("release"),this.held=!1,this.heldPointer=null,this.target=null,this.holdJob=null},pointerdown:function(a){a.isPrimary&&!this.heldPointer&&(this.heldPointer=a,this.target=a.target,this.holdJob=setInterval(this.pulse.bind(this),this.HOLD_DELAY))},pointerup:function(a){this.heldPointer&&this.heldPointer.pointerId===a.pointerId&&this.cancel()},pointercancel:function(){this.cancel()},pointermove:function(a){if(this.heldPointer&&this.heldPointer.pointerId===a.pointerId){var 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h={dx:f.x,dy:f.y,ddx:g.x,ddy:g.y,clientX:c.clientX,clientY:c.clientY,pageX:c.pageX,pageY:c.pageY,screenX:c.screenX,screenY:c.screenY,xDirection:e.xDirection,yDirection:e.yDirection,trackInfo:e.trackInfo,pointerType:c.pointerType};"trackend"===a&&(h._releaseTarget=c.target);var i=b.makeEvent(a,h);e.lastMoveEvent=c,b.dispatchEvent(i,e.downTarget)},pointerdown:function(a){if(a.isPrimary&&("mouse"===a.pointerType?1===a.buttons:!0)){var b={downEvent:a,downTarget:a.target,trackInfo:{},lastMoveEvent:null,xDirection:0,yDirection:0,tracking:!1};c.set(a.pointerId,b)}},pointermove:function(a){var b=c.get(a.pointerId);if(b)if(b.tracking)this.fireTrack("track",a,b);else{var d=this.calcPositionDelta(b.downEvent,a),e=d.x*d.x+d.y*d.y;e>this.WIGGLE_THRESHOLD&&(b.tracking=!0,this.fireTrack("trackstart",b.downEvent,b),this.fireTrack("track",a,b))}},pointerup:function(a){var b=c.get(a.pointerId);b&&(b.tracking&&this.fireTrack("trackend",a,b),c.delete(a.pointerId))},pointercancel:function(a){this.pointerup(a)}};b.registerRecognizer("track",d)}(window.PointerGestures),function(a){var b=a.dispatcher,c={MIN_VELOCITY:.5,MAX_QUEUE:4,moveQueue:[],target:null,pointerId:null,events:["pointerdown","pointermove","pointerup","pointercancel"],pointerdown:function(a){a.isPrimary&&!this.pointerId&&(this.pointerId=a.pointerId,this.target=a.target,this.addMove(a))},pointermove:function(a){a.pointerId===this.pointerId&&this.addMove(a)},pointerup:function(a){a.pointerId===this.pointerId&&this.fireFlick(a),this.cleanup()},pointercancel:function(){this.cleanup()},cleanup:function(){this.moveQueue=[],this.target=null,this.pointerId=null},addMove:function(a){this.moveQueue.length>=this.MAX_QUEUE&&this.moveQueue.shift(),this.moveQueue.push(a)},fireFlick:function(a){for(var 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f=a.findLCA(e.target,d.target);if(f){var g=b.makeEvent("tap",{x:d.clientX,y:d.clientY,pointerType:d.pointerType});b.dispatchEvent(g,f)}}c.delete(d.pointerId)},pointercancel:function(a){c.delete(a.pointerId)},preventTap:function(a){c.delete(a)}};b.registerRecognizer("tap",d)}(window.PointerGestures);
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