File: resources/floating_window.js

var readSizeFromCookie = true;	// Determines if size and position of windows should be set/retreved by use of cookie
	var windowMinSize = [80,30];	// Mininum width and height of windows.
	
	var moveCounter = -1;	
	var startEventPos = new Array();
	var startPosWindow = new Array();
	var startWindowSize = new Array();
	var initResizeCounter = -1;	
	var activeWindow = false;
	var activeWindowContent = false;	
	var windowSizeArray = new Array();
	var windowPositionArray = new Array();
	var currentZIndex = 10000;
	/*
	These cookie functions are downloaded from 
	http://www.mach5.com/support/analyzer/manual/html/General/CookiesJavaScript.htm
	*/	
	function Get_Cookie(name) { 
	   var start = document.cookie.indexOf(name+"="); 
	   var len = start+name.length+1; 
	   if ((!start) && (name != document.cookie.substring(0,name.length))) return null; 
	   if (start == -1) return null; 
	   var end = document.cookie.indexOf(";",len); 
	   if (end == -1) end = document.cookie.length; 
	   return unescape(document.cookie.substring(len,end)); 
	} 
	// This function has been slightly modified
	function Set_Cookie(name,value,expires,path,domain,secure) { 
		expires = expires * 60*60*24*1000;
		var today = new Date();
		var expires_date = new Date( today.getTime() + (expires) );
	    var cookieString = name + "=" +escape(value) + 
	       ( (expires) ? ";expires=" + expires_date.toGMTString() : "") + 
	       ( (path) ? ";path=" + path : "") + 
	       ( (domain) ? ";domain=" + domain : "") + 
	       ( (secure) ? ";secure" : ""); 
	    document.cookie = cookieString; 
	} 
			
	function cancelEvent()
	{
		return (moveCounter==-1 && initResizeCounter==-1)?true:false;
	}
	function initMove(e)
	{		
		if(document.all)e = event;
		moveCounter = 0;
		switchElement(false,this);
		startEventPos = [e.clientX,e.clientY];
		startPosWindow = [activeWindow.offsetLeft,activeWindow.offsetTop];
		startMove();
		if(!document.all)return false;
	}
	
	function startMove()
	{
		if(moveCounter>=0 && moveCounter<=10){
			moveCounter++;
			setTimeout('startMove()',10);
		}
	}
	
	function stopMove(e)
	{
		if(document.all)e = event;
		moveCounter=-1;
		initResizeCounter=-1;
		if(!activeWindow || !activeWindowContent)return;
		Set_Cookie(activeWindow.id + '_attr',activeWindow.style.left.replace('px','') + ',' + activeWindow.style.top.replace('px','') + ',' + activeWindow.style.width.replace('px','') + ',' + activeWindowContent.style.height.replace('px','') + ',' + activeWindow.style.zIndex,50);
	}
	
	function moveWindow(e)
	{
		if(document.all)e = event;
		if(moveCounter>=10){
			activeWindow.style.left = startPosWindow[0] + e.clientX - startEventPos[0]  + 'px';
			activeWindow.style.top = startPosWindow[1] + e.clientY - startEventPos[1]  + 'px';
			
		}	
		
		if(initResizeCounter>=10){
			var newWidth = Math.max(windowMinSize[0],startWindowSize[0] + e.clientX - startEventPos[0]);
			var newHeight = Math.max(windowMinSize[1],startWindowSize[1] + e.clientY - startEventPos[1]);
			activeWindow.style.width =  newWidth + 'px';
			activeWindowContent.style.height = newHeight  + 'px';		
			
			
		}
		if(!document.all)return false;
	}
	
	
	function initResizeWindow(e)
	{
		if(document.all)e = event;
		initResizeCounter = 0;
		switchElement(false,document.getElementById('dhtml_goodies_id' + this.id.replace(/[^\d]/g,'')));

		startWindowSize = [activeWindowContent.offsetWidth,activeWindowContent.offsetHeight];
		startEventPos = [e.clientX,e.clientY];
		
		
		startResizeWindow();
		return false;
			
	}
	
	function startResizeWindow()
	{
		if(initResizeCounter>=0 && initResizeCounter<=10){
			initResizeCounter++;
			setTimeout('startResizeWindow()',10);
		}
	}
	
	function switchElement(e,inputElement)
	{
		if(!inputElement)inputElement = this;
		if(activeWindow && activeWindowContent){
			Set_Cookie(activeWindow.id + '_attr',activeWindow.style.left.replace('px','') + ',' + activeWindow.style.top.replace('px','') + ',' + activeWindow.style.width.replace('px','') + ',' + activeWindowContent.style.height.replace('px','') + ',' + activeWindow.style.zIndex,50);
	
		}
		currentZIndex = currentZIndex/1 + 1;
		activeWindow = document.getElementById('dhtml_goodies_id' + inputElement.id.replace(/[^\d]/g,''));	
		activeWindow.style.zIndex = currentZIndex;
		activeWindowContent = document.getElementById('windowContent' + inputElement.id.replace(/[^\d]/g,''));
		Set_Cookie(activeWindow.id + '_attr',activeWindow.style.left.replace('px','') + ',' + activeWindow.style.top.replace('px','') + ',' + activeWindow.style.width.replace('px','') + ',' + activeWindowContent.style.height.replace('px','') + ',' + activeWindow.style.zIndex,50);
	}
	
	function hideWindow()
	{
		switchElement(false,document.getElementById('dhtml_goodies_id' + this.id.replace(/[^\d]/g,'')));	
		activeWindow.style.display='none';
	}
	
	function minimizeWindow()
	{
		var numericID = this.id.replace(/[^\d]/g,'');
		switchElement(false,document.getElementById('dhtml_goodies_id' + numericID));	
		if(this.src.indexOf('minimize')>=0){
			activeWindowContent.style.display='none';
			document.getElementById('resizeImage'+numericID).style.display='none';
			this.src = this.src.replace('minimize','maximize');			
		}else{			
			activeWindowContent.style.display='block';
			document.getElementById('resizeImage'+numericID).style.display='';
			this.src = this.src.replace('maximize','minimize');
		}
	}
	
	function initWindows()
	{
		var divCounter = 0;
		var zIndexSet = false;
		var divs = document.getElementsByTagName('DIV');
		for(var no=0;no<divs.length;no++){
			
			if(divs[no].className=='dhtmlgoodies_window'){	
				divCounter = divCounter + 1;	
				if(divCounter==1)activeWindow = divs[no];		
				divs[no].id = 'dhtml_goodies_id' + divCounter;	
				divs[no].onmousedown = switchElement;
				if(readSizeFromCookie)var cookiePos = Get_Cookie(divs[no].id + '_attr') + '';	else cookiePos = '';
				var cookieValues = new Array();			
				if(cookiePos.indexOf(',')>0){
					cookieValues = cookiePos.split(',');
					if(!windowPositionArray[divCounter])windowPositionArray[divCounter] = new Array();
					windowPositionArray[divCounter][0] = Math.max(0,cookieValues[0]);
					windowPositionArray[divCounter][1] = Math.max(0,cookieValues[1]);
				}
				if(cookieValues.length==5 && !zIndexSet){
					divs[no].style.zIndex = cookieValues[4];
					if(cookieValues[4]/1 > currentZIndex)currentZIndex = cookieValues[4]/1;					
				}
				if(windowPositionArray[divCounter]){
					divs[no].style.left = windowPositionArray[divCounter][0] + 'px';	
					divs[no].style.top = windowPositionArray[divCounter][1] + 'px';	
				}
				
				var subImages = divs[no].getElementsByTagName('IMG');
				for(var no2=0;no2<subImages.length;no2++){
					if(subImages[no2].className=='resizeImage'){
						subImages[no2].style.cursor = 'nw-resize';
						subImages[no2].onmousedown = initResizeWindow;
						subImages[no2].id = 'resizeImage' + divCounter;
						break;
					}	
					if(subImages[no2].className=='closeButton'){
						subImages[no2].id = 'closeImage' + divCounter;
						subImages[no2].onclick = hideWindow;	
					}	
					if(subImages[no2].className=='minimizeButton'){
						subImages[no2].id = 'minimizeImage' + divCounter;
						subImages[no2].onclick = minimizeWindow;	
					}
				}			
			}	
			if(divs[no].className=='dhtmlgoodies_window_top'){
				divs[no].onmousedown = initMove;
				divs[no].id = 'top_bar'+divCounter;
			}
			if(divs[no].className=='dhtmlgoodies_windowContent'){
				divs[no].id = 'windowContent'+divCounter;
				if(cookieValues.length>3){
					if(!windowSizeArray[divCounter])windowSizeArray[divCounter] = new Array();
					windowSizeArray[divCounter][0] = cookieValues[2];
					windowSizeArray[divCounter][1] = cookieValues[3];
				}	
				if(cookieValues.length==5){
					activeWindowContent = document.getElementById('windowContent' + divCounter);	
				}		
				if(windowSizeArray[divCounter]){
					divs[no].style.height = windowSizeArray[divCounter][1] + 'px';
					divs[no].parentNode.parentNode.style.width = windowSizeArray[divCounter][0] + 'px';
				}
			}

			
		}	
		document.body.onmouseup = stopMove;	
		document.body.onmousemove = moveWindow;
		document.body.ondragstart = cancelEvent;
		document.body.onselectstart = cancelEvent;
	}
	window.onload = initWindows;