1/*! 2 * PEP v0.4.3 | https://github.com/jquery/PEP 3 * Copyright jQuery Foundation and other contributors | http://jquery.org/license 4 */ 5!function(a,b){"object"==typeof exports&&"undefined"!=typeof module?module.exports=b():"function"==typeof define&&define.amd?define(b):a.PointerEventsPolyfill=b()}(this,function(){"use strict";function a(a,b){b=b||Object.create(null);var c=document.createEvent("Event");c.initEvent(a,b.bubbles||!1,b.cancelable||!1); 6// define inherited MouseEvent properties 7// skip bubbles and cancelable since they're set above in initEvent() 8for(var d,e=2;e<m.length;e++)d=m[e],c[d]=b[d]||n[e];c.buttons=b.buttons||0; 9// Spec requires that pointers without pressure specified use 0.5 for down 10// state and 0 for up state. 11var f=0; 12// add x/y properties aliased to clientX/Y 13// define the properties of the PointerEvent interface 14return f=b.pressure&&c.buttons?b.pressure:c.buttons?.5:0,c.x=c.clientX,c.y=c.clientY,c.pointerId=b.pointerId||0,c.width=b.width||0,c.height=b.height||0,c.pressure=f,c.tiltX=b.tiltX||0,c.tiltY=b.tiltY||0,c.twist=b.twist||0,c.tangentialPressure=b.tangentialPressure||0,c.pointerType=b.pointerType||"",c.hwTimestamp=b.hwTimestamp||0,c.isPrimary=b.isPrimary||!1,c}function b(){this.array=[],this.size=0}function c(a,b,c,d){this.addCallback=a.bind(d),this.removeCallback=b.bind(d),this.changedCallback=c.bind(d),A&&(this.observer=new A(this.mutationWatcher.bind(this)))}function d(a){return"body /shadow-deep/ "+e(a)}function e(a){return'[touch-action="'+a+'"]'}function f(a){return"{ -ms-touch-action: "+a+"; touch-action: "+a+"; }"}function g(){if(F){D.forEach(function(a){String(a)===a?(E+=e(a)+f(a)+"\n",G&&(E+=d(a)+f(a)+"\n")):(E+=a.selectors.map(e)+f(a.rule)+"\n",G&&(E+=a.selectors.map(d)+f(a.rule)+"\n"))});var a=document.createElement("style");a.textContent=E,document.head.appendChild(a)}}function h(){ 15// only activate if this platform does not have pointer events 16if(!window.PointerEvent){if(window.PointerEvent=a,window.navigator.msPointerEnabled){var b=window.navigator.msMaxTouchPoints;Object.defineProperty(window.navigator,"maxTouchPoints",{value:b,enumerable:!0}),u.registerSource("ms",_)}else Object.defineProperty(window.navigator,"maxTouchPoints",{value:0,enumerable:!0}),u.registerSource("mouse",N),void 0!==window.ontouchstart&&u.registerSource("touch",V);u.register(document)}}function i(a){if(!u.pointermap.has(a)){var b=new Error("InvalidPointerId");throw b.name="InvalidPointerId",b}}function j(a){for(var b=a.parentNode;b&&b!==a.ownerDocument;)b=b.parentNode;if(!b){var c=new Error("InvalidStateError");throw c.name="InvalidStateError",c}}function k(a){var b=u.pointermap.get(a);return 0!==b.buttons}function l(){window.Element&&!Element.prototype.setPointerCapture&&Object.defineProperties(Element.prototype,{setPointerCapture:{value:W},releasePointerCapture:{value:X},hasPointerCapture:{value:Y}})}/** 17 * This is the constructor for new PointerEvents. 18 * 19 * New Pointer Events must be given a type, and an optional dictionary of 20 * initialization properties. 21 * 22 * Due to certain platform requirements, events returned from the constructor 23 * identify as MouseEvents. 24 * 25 * @constructor 26 * @param {String} inType The type of the event to create. 27 * @param {Object} [inDict] An optional dictionary of initial event properties. 28 * @return {Event} A new PointerEvent of type `inType`, initialized with properties from `inDict`. 29 */ 30var m=["bubbles","cancelable","view","detail","screenX","screenY","clientX","clientY","ctrlKey","altKey","shiftKey","metaKey","button","relatedTarget","pageX","pageY"],n=[!1,!1,null,null,0,0,0,0,!1,!1,!1,!1,0,null,0,0],o=window.Map&&window.Map.prototype.forEach,p=o?Map:b;b.prototype={set:function(a,b){return void 0===b?this["delete"](a):(this.has(a)||this.size++,void(this.array[a]=b))},has:function(a){return void 0!==this.array[a]},"delete":function(a){this.has(a)&&(delete this.array[a],this.size--)},get:function(a){return this.array[a]},clear:function(){this.array.length=0,this.size=0}, 31// return value, key, map 32forEach:function(a,b){return this.array.forEach(function(c,d){a.call(b,c,d,this)},this)}};var q=[ 33// MouseEvent 34"bubbles","cancelable","view","detail","screenX","screenY","clientX","clientY","ctrlKey","altKey","shiftKey","metaKey","button","relatedTarget",
35// DOM Level 3 36"buttons", 37// PointerEvent 38"pointerId","width","height","pressure","tiltX","tiltY","pointerType","hwTimestamp","isPrimary", 39// event instance 40"type","target","currentTarget","which","pageX","pageY","timeStamp"],r=[ 41// MouseEvent 42!1,!1,null,null,0,0,0,0,!1,!1,!1,!1,0,null, 43// DOM Level 3 440, 45// PointerEvent 460,0,0,0,0,0,"",0,!1, 47// event instance 48"",null,null,0,0,0,0],s={pointerover:1,pointerout:1,pointerenter:1,pointerleave:1},t="undefined"!=typeof SVGElementInstance,u={pointermap:new p,eventMap:Object.create(null),captureInfo:Object.create(null), 49// Scope objects for native events. 50// This exists for ease of testing. 51eventSources:Object.create(null),eventSourceList:[],/** 52 * Add a new event source that will generate pointer events. 53 * 54 * `inSource` must contain an array of event names named `events`, and 55 * functions with the names specified in the `events` array. 56 * @param {string} name A name for the event source 57 * @param {Object} source A new source of platform events. 58 */ 59registerSource:function(a,b){var c=b,d=c.events;d&&(d.forEach(function(a){c[a]&&(this.eventMap[a]=c[a].bind(c))},this),this.eventSources[a]=c,this.eventSourceList.push(c))},register:function(a){for(var b,c=this.eventSourceList.length,d=0;d<c&&(b=this.eventSourceList[d]);d++) 60// call eventsource register 61b.register.call(b,a)},unregister:function(a){for(var b,c=this.eventSourceList.length,d=0;d<c&&(b=this.eventSourceList[d]);d++) 62// call eventsource register 63b.unregister.call(b,a)},contains:/*scope.external.contains || */function(a,b){try{return a.contains(b)}catch(c){ 64// most likely: https://bugzilla.mozilla.org/show_bug.cgi?id=208427 65return!1}}, 66// EVENTS 67down:function(a){a.bubbles=!0,this.fireEvent("pointerdown",a)},move:function(a){a.bubbles=!0,this.fireEvent("pointermove",a)},up:function(a){a.bubbles=!0,this.fireEvent("pointerup",a)},enter:function(a){a.bubbles=!1,this.fireEvent("pointerenter",a)},leave:function(a){a.bubbles=!1,this.fireEvent("pointerleave",a)},over:function(a){a.bubbles=!0,this.fireEvent("pointerover",a)},out:function(a){a.bubbles=!0,this.fireEvent("pointerout",a)},cancel:function(a){a.bubbles=!0,this.fireEvent("pointercancel",a)}
67,leaveOut:function(a){this.out(a),this.propagate(a,this.leave,!1)},enterOver:function(a){this.over(a),this.propagate(a,this.enter,!0)}, 68// LISTENER LOGIC 69eventHandler:function(a){ 70// This is used to prevent multiple dispatch of pointerevents from 71// platform events. This can happen when two elements in different scopes 72// are set up to create pointer events, which is relevant to Shadow DOM. 73if(!a._handledByPE){var b=a.type,c=this.eventMap&&this.eventMap[b];c&&c(a),a._handledByPE=!0}}, 74// set up event listeners 75listen:function(a,b){b.forEach(function(b){this.addEvent(a,b)},this)}, 76// remove event listeners 77unlisten:function(a,b){b.forEach(function(b){this.removeEvent(a,b)},this)},addEvent:/*scope.external.addEvent || */function(a,b){a.addEventListener(b,this.boundHandler)},removeEvent:/*scope.external.removeEvent || */function(a,b){a.removeEventListener(b,this.boundHandler)}, 78// EVENT CREATION AND TRACKING 79/** 80 * Creates a new Event of type `inType`, based on the information in 81 * `inEvent`. 82 * 83 * @param {string} inType A string representing the type of event to create 84 * @param {Event} inEvent A platform event with a target 85 * @return {Event} A PointerEvent of type `inType` 86 */ 87makeEvent:function(b,c){ 88// relatedTarget must be null if pointer is captured 89this.captureInfo[c.pointerId]&&(c.relatedTarget=null);var d=new a(b,c);return c.preventDefault&&(d.preventDefault=c.preventDefault),d._target=d._target||c.target,d}, 90// make and dispatch an event in one call 91fireEvent:function(a,b){var c=this.makeEvent(a,b);return this.dispatchEvent(c)},/** 92 * Returns a snapshot of inEvent, with writable properties. 93 * 94 * @param {Event} inEvent An event that contains properties to copy. 95 * @return {Object} An object containing shallow copies of `inEvent`'s 96 * properties. 97 */ 98cloneEvent:function(a){for(var b,c=Object.create(null),d=0;d<q.length;d++)b=q[d],c[b]=a[b]||r[d], 99// Work around SVGInstanceElement shadow tree 100// Return the <use> element that is represented by the instance for Safari, Chrome, IE. 101// This is the behavior implemented by Firefox. 102!t||"target"!==b&&"relatedTarget"!==b||c[b]instanceof SVGElementInstance&&(c[b]=c[b].correspondingUseElement); 103// keep the semantics of preventDefault 104return a.preventDefault&&(c.preventDefault=function(){a.preventDefault()}),c},getTarget:function(a){var b=this.captureInfo[a.pointerId];return b?a._target!==b&&a.type in s?void 0:b:a._target},propagate:function(a,b,c){ 105// Order of conditions due to document.contains() missing in IE. 106for(var d=a.target,e=[];d!==document&&!d.contains(a.relatedTarget);) 107// Touch: Do not propagate if node is detached. 108if(e.push(d),d=d.parentNode,!d)return;c&&e.reverse(),e.forEach(function(c){a.target=c,b.call(this,a)},this)},setCapture:function(b,c,d){this.captureInfo[b]&&this.releaseCapture(b,d),this.captureInfo[b]=c,this.implicitRelease=this.releaseCapture.bind(this,b,d),document.addEventListener("pointerup",this.implicitRelease),document.addEventListener("pointercancel",this.implicitRelease);var e=new a("gotpointercapture");e.pointerId=b,e._target=c,d||this.asyncDispatchEvent(e)},releaseCapture:function(b,c){var d=this.captureInfo[b];if(d){this.captureInfo[b]=void 0,document.removeEventListener("pointerup",this.implicitRelease),document.removeEventListener("pointercancel",this.implicitRelease);var e=new a("lostpointercapture");e.pointerId=b,e._target=d,c||this.asyncDispatchEvent(e)}},/** 109 * Dispatches the event to its target. 110 * 111 * @param {Event} inEvent The event to be dispatched. 112 * @return {Boolean} True if an event handler returns true, false otherwise. 113 */ 114dispatchEvent:/*scope.external.dispatchEvent || */function(a){var b=this.getTarget(a);if(b)return b.dispatchEvent(a)},asyncDispatchEvent:function(a){requestAnimationFrame(this.dispatchEvent.bind(this,a))}};u.boundHandler=u.eventHandler.bind(u);var v={shadow:function(a){if(a)return a.shadowRoot||a.webkitShadowRoot},canTarget:function(a){return a&&Boolean(a.elementFromPoint)},targetingShadow:function(a){var b=this.shadow(a);if(this.canTarget(b))return b},olderShadow:function(a){var b=a.olderShadowRoot;if(!b){var c=a.querySelector("shadow");c&&(b=c.olderShadowRoot)}return b},allShadows:function(a){for(var b=[],c=this.shadow(a);c;)b.push(c),c=this.olderShadow(c);return b},searchRoot:function(a,b,c){if(a){var d,e,f=a.elementFromPoint(b,c);for( 115// is element a shadow host? 116e=this.targetingShadow(f);e;){if( 117// find the the element inside the shadow root 118d=e.elementFromPoint(b,c)){ 119// shadowed element may contain a shadow root 120var g=this.targetingShadow(d);return this.searchRoot(g,b,c)||d} 121// check for older shadows 122e=this.olderShadow(e)} 123// light dom element is the target 124return f}},owner:function(a){ 125// walk up until you hit the shadow root or document 126for(var b=a;b.parentNode;)b=b.parentNode; 127// the owner element is expected to be a Document or ShadowRoot 128return b.nodeType!==Node.DOCUMENT_NODE&&b.nodeType!==Node.DOCUMENT_FRAGMENT_NODE&&(b=document),b},findTarget:function(a){var b=a.clientX,c=a.clientY,d=this.owner(a.target); 129// if x, y is not in this root, fall back to document search
130return d.elementFromPoint(b,c)||(d=document),this.searchRoot(d,b,c)}},w=Array.prototype.forEach.call.bind(Array.prototype.forEach),x=Array.prototype.map.call.bind(Array.prototype.map),y=Array.prototype.slice.call.bind(Array.prototype.slice),z=Array.prototype.filter.call.bind(Array.prototype.filter),A=window.MutationObserver||window.WebKitMutationObserver,B="[touch-action]",C={subtree:!0,childList:!0,attributes:!0,attributeOldValue:!0,attributeFilter:["touch-action"]};c.prototype={watchSubtree:function(a){ 131// Only watch scopes that can target find, as these are top-level. 132// Otherwise we can see duplicate additions and removals that add noise. 133// 134// TODO(dfreedman): For some instances with ShadowDOMPolyfill, we can see 135// a removal without an insertion when a node is redistributed among 136// shadows. Since it all ends up correct in the document, watching only 137// the document will yield the correct mutations to watch. 138this.observer&&v.canTarget(a)&&this.observer.observe(a,C)},enableOnSubtree:function(a){this.watchSubtree(a),a===document&&"complete"!==document.readyState?this.installOnLoad():this.installNewSubtree(a)},installNewSubtree:function(a){w(this.findElements(a),this.addElement,this)},findElements:function(a){return a.querySelectorAll?a.querySelectorAll(B):[]},removeElement:function(a){this.removeCallback(a)},addElement:function(a){this.addCallback(a)},elementChanged:function(a,b){this.changedCallback(a,b)},concatLists:function(a,b){return a.concat(y(b))}, 139// register all touch-action = none nodes on document load 140installOnLoad:function(){document.addEventListener("readystatechange",function(){"complete"===document.readyState&&this.installNewSubtree(document)}.bind(this))},isElement:function(a){return a.nodeType===Node.ELEMENT_NODE},flattenMutationTree:function(a){ 141// find children with touch-action 142var b=x(a,this.findElements,this); 143// flatten the list 144// make sure the added nodes are accounted for 145return b.push(z(a,this.isElement)),b.reduce(this.concatLists,[])},mutationWatcher:function(a){a.forEach(this.mutationHandler,this)},mutationHandler:function(a){if("childList"===a.type){var b=this.flattenMutationTree(a.addedNodes);b.forEach(this.addElement,this);var c=this.flattenMutationTree(a.removedNodes);c.forEach(this.removeElement,this)}else"attributes"===a.type&&this.elementChanged(a.target,a.oldValue)}};var D=["none","auto","pan-x","pan-y",{rule:"pan-x pan-y",selectors:["pan-x pan-y","pan-y pan-x"]}],E="",F=window.PointerEvent||window.MSPointerEvent,G=!window.ShadowDOMPolyfill&&document.head.createShadowRoot,H=u.pointermap,I=25,J=[1,4,2,8,16],K=!1;try{K=1===new MouseEvent("test",{buttons:1}).buttons}catch(L){} 146// handler block for native mouse events 147var M,N={POINTER_ID:1,POINTER_TYPE:"mouse",events:["mousedown","mousemove","mouseup","mouseover","mouseout"],register:function(a){u.listen(a,this.events)},unregister:function(a){u.unlisten(a,this.events)},lastTouches:[], 148// collide with the global mouse listener 149isEventSimulatedFromTouch:function(a){for(var b,c=this.lastTouches,d=a.clientX,e=a.clientY,f=0,g=c.length;f<g&&(b=c[f]);f++){ 150// simulated mouse events will be swallowed near a primary touchend 151var h=Math.abs(d-b.x),i=Math.abs(e-b.y);if(h<=I&&i<=I)return!0}},prepareEvent:function(a){var b=u.cloneEvent(a),c=b.preventDefault;return b.preventDefault=function(){a.preventDefault(),c()},b.pointerId=this.POINTER_ID,b.isPrimary=!0,b.pointerType=this.POINTER_TYPE,b},prepareButtonsForMove:function(a,b){var c=H.get(this.POINTER_ID); 152// Update buttons state after possible out-of-document mouseup. 1530!==b.which&&c?a.buttons=c.buttons:a.buttons=0,b.buttons=a.buttons},mousedown:function(a){if(!this.isEventSimulatedFromTouch(a)){var b=H.get(this.POINTER_ID),c=this.prepareEvent(a);K||(c.buttons=J[c.button],b&&(c.buttons|=b.buttons),a.buttons=c.buttons),H.set(this.POINTER_ID,a),b&&0!==b.buttons?u.move(c):u.down(c)}},mousemove:function(a){if(!this.isEventSimulatedFromTouch(a)){var b=this.prepareEvent(a);K||this.prepareButtonsForMove(b,a),b.button=-1,H.set(this.POINTER_ID,a),u.move(b)}},mouseup:function(a){if(!this.isEventSimulatedFromTouch(a)){var b=H.get(this.POINTER_ID),c=this.prepareEvent(a);if(!K){var d=J[c.button]; 154// Produces wrong state of buttons in Browsers without `buttons` support 155// when a mouse button that was pressed outside the document is released 156// inside and other buttons are still pressed down. 157c.buttons=b?b.buttons&~d:0,a.buttons=c.buttons}H.set(this.POINTER_ID,a), 158// Support: Firefox <=44 only 159// FF Ubuntu includes the lifted button in the `buttons` property on 160// mouseup. 161// https://bugzilla.mozilla.org/show_bug.cgi?id=1223366 162c.buttons&=~J[c.button],0===c.buttons?u.up(c):u.move(c)}}
162,mouseover:function(a){if(!this.isEventSimulatedFromTouch(a)){var b=this.prepareEvent(a);K||this.prepareButtonsForMove(b,a),b.button=-1,H.set(this.POINTER_ID,a),u.enterOver(b)}},mouseout:function(a){if(!this.isEventSimulatedFromTouch(a)){var b=this.prepareEvent(a);K||this.prepareButtonsForMove(b,a),b.button=-1,u.leaveOut(b)}},cancel:function(a){var b=this.prepareEvent(a);u.cancel(b),this.deactivateMouse()},deactivateMouse:function(){H["delete"](this.POINTER_ID)}},O=u.captureInfo,P=v.findTarget.bind(v),Q=v.allShadows.bind(v),R=u.pointermap,S=2500,T=200,U="touch-action",V={events:["touchstart","touchmove","touchend","touchcancel"],register:function(a){M.enableOnSubtree(a)},unregister:function(){},elementAdded:function(a){var b=a.getAttribute(U),c=this.touchActionToScrollType(b);c&&(a._scrollType=c,u.listen(a,this.events), 163// set touch-action on shadows as well 164Q(a).forEach(function(a){a._scrollType=c,u.listen(a,this.events)},this))},elementRemoved:function(a){a._scrollType=void 0,u.unlisten(a,this.events), 165// remove touch-action from shadow 166Q(a).forEach(function(a){a._scrollType=void 0,u.unlisten(a,this.events)},this)},elementChanged:function(a,b){var c=a.getAttribute(U),d=this.touchActionToScrollType(c),e=this.touchActionToScrollType(b); 167// simply update scrollType if listeners are already established 168d&&e?(a._scrollType=d,Q(a).forEach(function(a){a._scrollType=d},this)):e?this.elementRemoved(a):d&&this.elementAdded(a)},scrollTypes:{EMITTER:"none",XSCROLLER:"pan-x",YSCROLLER:"pan-y",SCROLLER:/^(?:pan-x pan-y)|(?:pan-y pan-x)|auto$/},touchActionToScrollType:function(a){var b=a,c=this.scrollTypes;return"none"===b?"none":b===c.XSCROLLER?"X":b===c.YSCROLLER?"Y":c.SCROLLER.exec(b)?"XY":void 0},POINTER_TYPE:"touch",firstTouch:null,isPrimaryTouch:function(a){return this.firstTouch===a.identifier},setPrimaryTouch:function(a){ 169// set primary touch if there no pointers, or the only pointer is the mouse 170(0===R.size||1===R.size&&R.has(1))&&(this.firstTouch=a.identifier,this.firstXY={X:a.clientX,Y:a.clientY},this.scrolling=!1,this.cancelResetClickCount())},removePrimaryPointer:function(a){a.isPrimary&&(this.firstTouch=null,this.firstXY=null,this.resetClickCount())},clickCount:0,resetId:null,resetClickCount:function(){var a=function(){this.clickCount=0,this.resetId=null}.bind(this);this.resetId=setTimeout(a,T)},cancelResetClickCount:function(){this.resetId&&clearTimeout(this.resetId)},typeToButtons:function(a){var b=0;return"touchstart"!==a&&"touchmove"!==a||(b=1),b},touchToPointer:function(a){var b=this.currentTouchEvent,c=u.cloneEvent(a),d=c.pointerId=a.identifier+2;c.target=O[d]||P(c),c.bubbles=!0,c.cancelable=!0,c.detail=this.clickCount,c.button=0,c.buttons=this.typeToButtons(b.type),c.width=2*(a.radiusX||a.webkitRadiusX||0),c.height=2*(a.radiusY||a.webkitRadiusY||0),c.pressure=a.force||a.webkitForce||.5,c.isPrimary=this.isPrimaryTouch(a),c.pointerType=this.POINTER_TYPE, 171// forward modifier keys 172c.altKey=b.altKey,c.ctrlKey=b.ctrlKey,c.metaKey=b.metaKey,c.shift
172Key=b.shiftKey; 173// forward touch preventDefaults 174var e=this;return c.preventDefault=function(){e.scrolling=!1,e.firstXY=null,b.preventDefault()},c},processTouches:function(a,b){var c=a.changedTouches;this.currentTouchEvent=a;for(var d,e=0;e<c.length;e++)d=c[e],b.call(this,this.touchToPointer(d))}, 175// For single axis scrollers, determines whether the element should emit 176// pointer events or behave as a scroller 177shouldScroll:function(a){if(this.firstXY){var b,c=a.currentTarget._scrollType;if("none"===c) 178// this element is a touch-action: none, should never scroll 179b=!1;else if("XY"===c) 180// this element should always scroll 181b=!0;else{var d=a.changedTouches[0],e=c,f="Y"===c?"X":"Y",g=Math.abs(d["client"+e]-this.firstXY[e]),h=Math.abs(d["client"+f]-this.firstXY[f]); 182// if delta in the scroll axis > delta other axis, scroll instead of 183// making events 184b=g>=h}return this.firstXY=null,b}},findTouch:function(a,b){for(var c,d=0,e=a.length;d<e&&(c=a[d]);d++)if(c.identifier===b)return!0}, 185// In some instances, a touchstart can happen without a touchend. This 186// leaves the pointermap in a broken state. 187// Therefore, on every touchstart, we remove the touches that did not fire a 188// touchend event. 189// To keep state globally consistent, we fire a 190// pointercancel for this "abandoned" touch 191vacuumTouches:function(a){var b=a.touches; 192// pointermap.size should be < tl.length here, as the touchstart has not 193// been processed yet. 194if(R.size>=b.length){var c=[];R.forEach(function(a,d){ 195// Never remove pointerId == 1, which is mouse.
196// Touch identifiers are 2 smaller than their pointerId, which is the 197// index in pointermap. 198if(1!==d&&!this.findTouch(b,d-2)){var e=a.out;c.push(e)}},this),c.forEach(this.cancelOut,this)}},touchstart:function(a){this.vacuumTouches(a),this.setPrimaryTouch(a.changedTouches[0]),this.dedupSynthMouse(a),this.scrolling||(this.clickCount++,this.processTouches(a,this.overDown))},overDown:function(a){R.set(a.pointerId,{target:a.target,out:a,outTarget:a.target}),u.enterOver(a),u.down(a)},touchmove:function(a){this.scrolling||(this.shouldScroll(a)?(this.scrolling=!0,this.touchcancel(a)):(a.preventDefault(),this.processTouches(a,this.moveOverOut)))},moveOverOut:function(a){var b=a,c=R.get(b.pointerId); 199// a finger drifted off the screen, ignore it 200if(c){var d=c.out,e=c.outTarget;u.move(b),d&&e!==b.target&&(d.relatedTarget=b.target,b.relatedTarget=e, 201// recover from retargeting by shadow 202d.target=e,b.target?(u.leaveOut(d),u.enterOver(b)):( 203// clean up case when finger leaves the screen 204b.target=e,b.relatedTarget=null,this.cancelOut(b))),c.out=b,c.outTarget=b.target}},touchend:function(a){this.dedupSynthMouse(a),this.processTouches(a,this.upOut)},upOut:function(a){this.scrolling||(u.up(a),u.leaveOut(a)),this.cleanUpPointer(a)},touchcancel:function(a){this.processTouches(a,this.cancelOut)},cancelOut:function(a){u.cancel(a),u.leaveOut(a),this.cleanUpPointer(a)},cleanUpPointer:function(a){R["delete"](a.pointerId),this.removePrimaryPointer(a)}, 205// prevent synth mouse events from creating pointer events 206dedupSynthMouse:function(a){var b=N.lastTouches,c=a.changedTouches[0]; 207// only the primary finger will synth mouse events 208if(this.isPrimaryTouch(c)){ 209// remember x/y of last touch 210var d={x:c.clientX,y:c.clientY};b.push(d);var e=function(a,b){var c=a.indexOf(b);c>-1&&a.splice(c,1)}.bind(null,b,d);setTimeout(e,S)}}};M=new c(V.elementAdded,V.elementRemoved,V.elementChanged,V);var W,X,Y,Z=u.pointermap,$=window.MSPointerEvent&&"number"==typeof window.MSPointerEvent.MSPOINTER_TYPE_MOUSE,_={events:["MSPointerDown","MSPointerMove","MSPointerUp","MSPointerOut","MSPointerOver","MSPointerCancel","MSGotPointerCapture","MSLostPointerCapture"],register:function(a){u.listen(a,this.events)},unregister:function(a){u.unlisten(a,this.events)},POINTER_TYPES:["","unavailable","touch","pen","mouse"],prepareEvent:function(a){var b=a;return $&&(b=u.cloneEvent(a),b.pointerType=this.POINTER_TYPES[a.pointerType]),b},cleanup:function(a){Z["delete"](a)},MSPointerDown:function(a){Z.set(a.pointerId,a);var b=this.prepareEvent(a);u.down(b)},MSPointerMove:function(a){var b=this.prepareEvent(a);u.move(b)},MSPointerUp:function(a){var b=this.prepareEvent(a);u.up(b),this.cleanup(a.pointerId)},MSPointerOut:function(a){var b=this.prepareEvent(a);u.leaveOut(b)},MSPointerOver:function(a){var b=this.prepareEvent(a);u.enterOver(b)},MSPointerCancel:function(a){var b=this.prepareEvent(a);u.cancel(b),this.cleanup(a.pointerId)},MSLostPointerCapture:function(a){var b=u.makeEvent("lostpointercapture",a);u.dispatchEvent(b)},MSGotPointerCapture:function(a){var b=u.makeEvent("gotpointercapture",a);u.dispatchEvent(b)}},aa=window.navigator;aa.msPointerEnabled?(W=function(a){i(a),j(this),k(a)&&(u.setCapture(a,this,!0),this.msSetPointerCapture(a))},X=function(a){i(a),u.releaseCapture(a,!0),this.msReleasePointerCapture(a)}):(W=function(a){i(a),j(this),k(a)&&u.setCapture(a,this)},X=function(a){i(a),u.releaseCapture(a)}),Y=function(a){return!!u.captureInfo[a]},g(),h(),l();var ba={dispatcher:u,Installer:c,PointerEvent:a,PointerMap:p,targetFinding:v};return ba});
Line numbers count LF bytes from the start of the resource, as the search results do. Vendor segments are library code the classifier recognised; they are stored but not indexed. Bytes are shown as Latin1 characters, one per byte.