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Current File : /www/wwwroot/eblliwsm.com/c7bd1a80/Extend/Tool/TPM/Tpl/Public/js/desktopBrowsers.js

//desktopBrowsers contributed by Carlos Ouro @ Badoo
//translates desktop browsers events to touch events and prevents defaults
//It can be used independently in other apps but it is required for using the touchLayer in the desktop


;(function ($) {
	
	var cancelClickMove=false;
	var preventAll = function(e) 
    {
        e.preventDefault();
		e.stopPropagation();
    }
	
	var redirectMouseToTouch = function(type, originalEvent, newTarget) 
	{

		var theTarget = newTarget ? newTarget : originalEvent.target;
		
	    //stop propagation, and remove default behavior for everything but INPUT, TEXTAREA & SELECT fields
	    if (theTarget.tagName.toUpperCase().indexOf("SELECT") == -1 && 
	    theTarget.tagName.toUpperCase().indexOf("TEXTAREA") == -1 && 
	    theTarget.tagName.toUpperCase().indexOf("INPUT") == -1)  //SELECT, TEXTAREA & INPUT
	    {
            // by luofei , 为了兼容iscroll 去掉原生事件的取消监听
	       // preventAll(originalEvent);
	    }
    
	    var touchevt = document.createEvent("Event");
	    touchevt.initEvent(type, true, true);
		if(type!='touchend'){
		    touchevt.touches = new Array();
		    touchevt.touches[0] = new Object();
		    touchevt.touches[0].pageX = originalEvent.pageX;
		    touchevt.touches[0].pageY = originalEvent.pageY;
			//target
		    touchevt.touches[0].target = theTarget;
		    touchevt.changedTouches = touchevt.touches; //for jqtouch
		    touchevt.targetTouches = touchevt.touches;  //for jqtouch
		}
		//target
	    touchevt.target = theTarget;
		
		touchevt.mouseToTouch = true;
	    theTarget.dispatchEvent(touchevt);
	}
	
    var mouseDown = false,
		lastTarget = null,firstMove=false;


	if(!window.navigator.msPointerEnabled){

	    document.addEventListener("mousedown", function(e) 
	    {
			mouseDown = true;
			lastTarget = e.target;
			if(e.target.nodeName.toLowerCase()=="a"&&e.target.href.toLowerCase()=="javascript:;")
				e.target.href="#";
	        redirectMouseToTouch("touchstart", e);
	        firstMove = true;
	        cancelClickMove=false;
	    }, true);

	    document.addEventListener("mouseup", function(e) 
	    {
			if(!mouseDown) return;
	        redirectMouseToTouch("touchend", e, lastTarget);	//bind it to initial mousedown target
			lastTarget = null;
			mouseDown = false;
	    }, true);

	    document.addEventListener("mousemove", function(e) 
	    {
	        if (!mouseDown) return;
	        if(firstMove) return firstMove=false
	        redirectMouseToTouch("touchmove", e);
	    	e.preventDefault();

	    	cancelClickMove=true;
	    }, true);
	}
	else { //Win8
	    document.addEventListener("MSPointerDown", function(e) 
	    {

			mouseDown = true;
			lastTarget = e.target;
			if(e.target.nodeName.toLowerCase()=="a"&&e.target.href.toLowerCase()=="javascript:;")
				e.target.href="#";
	        redirectMouseToTouch("touchstart", e);
	        firstMove = true;
	        cancelClickMove=false;
	      //  e.preventDefault();e.stopPropagation();
	    }, true);

	    document.addEventListener("MSPointerUp", function(e) 
	    {
			if(!mouseDown) return;
	        redirectMouseToTouch("touchend", e, lastTarget);	//bind it to initial mousedown target
			lastTarget = null;
			mouseDown = false;
		//	e.preventDefault();e.stopPropagation();
	    }, true);

	    document.addEventListener("MSPointerMove", function(e) 
	    {

	        if (!mouseDown) return;
	        if(firstMove) return firstMove=false
	        redirectMouseToTouch("touchmove", e);
	    	e.preventDefault();
	    	//e.stopPropagation();

	    	cancelClickMove=true;

	    }, true);
	}	
		
		
	//prevent all mouse events which dont exist on touch devices
    document.addEventListener("drag", preventAll, true);
	document.addEventListener("dragstart", preventAll, true);
	document.addEventListener("dragenter", preventAll, true);
	document.addEventListener("dragover", preventAll, true);
	document.addEventListener("dragleave", preventAll, true);
	document.addEventListener("dragend", preventAll, true);
	document.addEventListener("drop", preventAll, true);
	document.addEventListener("selectstart", preventAll, true);
	document.addEventListener("click", function(e) 
    {
		if(!e.mouseToTouch&&e.target==lastTarget){
	        preventAll(e);
		}
		if(cancelClickMove)
		{
			preventAll(e);
			cancelClickMove=false;
		}
    }, true);
	
	
	window.addEventListener("resize",function(){
		var touchevt = document.createEvent("Event");
	 	touchevt.initEvent("orientationchange", true, true);
	    document.dispatchEvent(touchevt);
	},false);
	
})(jQuery);

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