/************************************************************************************************************
	@fileoverview
	Floating window
	
	Copyright (C) 2006  Alf Magne Kalleland(post@dhtmlgoodies.com)
	
	This library is free software; you can redistribute it and/or
	modify it under the terms of the GNU Lesser General Public
	License as published by the Free Software Foundation; either
	version 2.1 of the License, or (at your option) any later version.
	
	This library is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
	Lesser General Public License for more details.
	
	You should have received a copy of the GNU Lesser General Public
	License along with this library; if not, write to the Free Software
	Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
	
	
	www.dhtmlgoodies.com 
	Alf Magne Kalleland


Update log:
	
	January 18th, 2006: Added feature that makes the window cover selectboxes(ref. problem with windowed and window less elements).
	January 29th, 2006: Fixed problem showing the windows in Opera
	Feb, 8th 2006:		Added support for creating new windows dynamically
	March,	11th, 2006: Added support for getting content from external files by use of Ajax
	
	
************************************************************************************************************/
		
	var readSizeFromCookie = false;	// 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;
	var windowStateArray = new Array();	// Minimized or maximized
	var activeWindowIframe = false;
	var divCounter = 0;
	var zIndexSet = false;
	
	var MSIEWIN = (navigator.userAgent.indexOf('MSIE')>=0 && navigator.userAgent.indexOf('Win')>=0 && navigator.userAgent.toLowerCase().indexOf('opera')<0)?true:false;
	var opera = navigator.userAgent.toLowerCase().indexOf('opera')>=0?true:false;
	
	var ajaxObjects = new Array();
	
	var activeOverlay = false;

		
			
	/*
	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(!MSIEWIN)return false;
	
	}
	
	function startMove()
	{
		if(moveCounter>=0 && moveCounter<=10){
			moveCounter++;
			setTimeout('startMove()',5);
		}
	}
	
	function stopMove(e)
	{
		if(document.all)e = event;
		moveCounter=-1;
		initResizeCounter=-1;
		if(!activeWindow || !activeWindowContent)return;
		var state = '0';
		if(windowStateArray[activeWindow.id.replace(/[^0-9]/g,'')])state = '1';
		
		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 + ',' + state,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(MSIEWIN && activeWindowIframe){
				activeWindowIframe.style.width = (newWidth) + 'px';	
				activeWindowIframe.style.height = (newHeight+20) + '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];
		
		if(MSIEWIN)activeWindowIframe = activeWindow.getElementsByTagName('IFRAME')[0];
		startResizeWindow();
		return false;
			
	}
	
	function startResizeWindow()
	{
		if(initResizeCounter>=0 && initResizeCounter<=10){
			initResizeCounter++;
			setTimeout('startResizeWindow()',5);
		}
	}
	
	function switchElement(e,inputElement)
	{
		if(!inputElement)inputElement = this;
		var numericId = inputElement.id.replace(/[^0-9]/g,'');
		var state = '0';
		if(windowStateArray[numericId])state = '1';
			
		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 + ',' + state,50);
		}
		currentZIndex = currentZIndex/1 + 1;
		activeWindow = document.getElementById('dhtml_goodies_id' + numericId);	
		activeWindow.style.zIndex = currentZIndex;
		activeWindowContent = document.getElementById('windowContent' + numericId);

		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 + ',' + state,50);
	}
	
	function hideWindow()
	{
		switchElement(false,document.getElementById('dhtml_goodies_id' + this.id.replace(/[^\d]/g,'')));	
		activeWindow.style.display='none';
		activeOverlay.style.display = 'none';
	}
	
	function killWindow()
	{
		switchElement(false,document.getElementById('dhtml_goodies_id' + this.id.replace(/[^\d]/g,'')));	
		activeWindow.innerHTML='';
		activeOverlay.style.display = 'none';
	}

	function minimizeWindow(e,inputObj)
	{
		if(!inputObj)inputObj = this;
		var numericID = inputObj.id.replace(/[^0-9]/g,'');
		switchElement(false,document.getElementById('dhtml_goodies_id' + numericID));
		var state;	
		if(inputObj.src.indexOf('minimize')>=0){
			activeWindowContent.style.display='none';
			document.getElementById('resizeImage'+numericID).style.display='none';
			inputObj.src = inputObj.src.replace('minimize','maximize');
			windowStateArray[numericID] = false;
			state = '0';
		}else{			
			activeWindowContent.style.display='block';
			document.getElementById('resizeImage'+numericID).style.display='';
			inputObj.src = inputObj.src.replace('maximize','minimize');
			windowStateArray[numericID] = true;
			state = '1';
		}
		
		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 + ',' + state,50);

	}
	
	function initWindows(e,divObj)
	{
		if (!activeOverlay) {
			// create product overlay div and hardcode some functional styles (aesthetic styles are in CSS file)
			var objBody = document.getElementsByTagName("body").item(0);
			var objOverlay = document.createElement("div");
			objOverlay.setAttribute('id','dhtmlgoodies-overlay');
			objOverlay.onclick = function () {hideAllWindows(); objOverlay.style.display = 'none'; return false; };
			objOverlay.style.display = 'none';
			objOverlay.style.position = 'absolute';
			objOverlay.style.top = '0';
			objOverlay.style.left = '0';
			objOverlay.style.zIndex = '90';
			objOverlay.style.width = '100%';
			objBody.insertBefore(objOverlay, objBody.firstChild);
	
			activeOverlay = objOverlay;
		}
		
		var divs = document.getElementsByTagName('DIV');
		
		if(divObj){
			var tmpDivs = divObj.getElementsByTagName('DIV');
			var divs = new Array();
			divs[divs.length] = divObj;
			
			for(var no=0;no<tmpDivs.length;no++){
				divs[divs.length] = tmpDivs[no];
			}
		}
		
		for(var no=0;no<divs.length;no++){
			
			if(divs[no].className=='dhtmlgoodies_window'){	
		
				if(MSIEWIN){
					var iframe = document.createElement('IFRAME');
					iframe.style.border='0px';
					iframe.frameborder=0;
					iframe.style.position = 'absolute';
					iframe.style.backgroundColor = '#FFFFFF';
					iframe.style.top = '0px';
					iframe.style.left = '0px';
					iframe.style.zIndex = 100;
				
					
					var subDiv = divs[no].getElementsByTagName('DIV')[0];
					divs[no].insertBefore(iframe,subDiv);
					
				}					
				if(divObj){
					divs[no].style.zIndex = currentZIndex;
					currentZIndex = currentZIndex /1 + 1;
				}
				
				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 = '';
				if(divObj)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 = killWindow;	
					}	
					if(subImages[no2].className=='minimizeButton'){
						subImages[no2].id = 'minimizeImage' + divCounter;
						subImages[no2].onclick = minimizeWindow;	
						if(cookieValues.length==6 && cookieValues[5]=='0'){							
							setTimeout('minimizeWindow(false,document.getElementById("minimizeImage' + divCounter + '"))',10);
						}
						if(cookieValues.length==6 && cookieValues[5]=='1'){							
							windowStateArray[divCounter] = 1;
						}
						
						
					}
				}			
			}	
			if(divs[no].className=='dhtmlgoodies_windowMiddle' || divs[no].className=='dhtmlgoodies_window_bottom'){
				divs[no].style.zIndex = 1000;
				
			}
			if(divs[no].className=='dhtmlgoodies_window_top'){
				divs[no].onmousedown = initMove;
				divs[no].id = 'top_bar'+divCounter;
				divs[no].style.zIndex = 1000;
	
			}

			if(divs[no].className=='dhtmlgoodies_windowContent'){
				divs[no].id = 'windowContent'+divCounter;
				divs[no].style.zIndex = 1000;
				if(cookieValues && cookieValues.length>3){
					if(!windowSizeArray[divCounter])windowSizeArray[divCounter] = new Array();
					windowSizeArray[divCounter][0] = cookieValues[2];
					windowSizeArray[divCounter][1] = cookieValues[3];
				}	
				if(cookieValues && 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';
					
					if(MSIEWIN){
						iframe.style.width = (windowSizeArray[divCounter][0]) + 'px';
						iframe.style.height = (windowSizeArray[divCounter][1]+20) + 'px';
					}
				}
			}

			
		}	
		
		if(!divObj){
			document.documentElement.onmouseup = stopMove;	
			document.documentElement.onmousemove = moveWindow;
			document.documentElement.ondragstart = cancelEvent;
			document.documentElement.onselectstart = cancelEvent;
		}
		
		return divCounter;
	}

	
	//
	// getUserPageSize()
	// Returns array with page width, height and window width, height
	// Core code from - quirksmode.org
	// Edit for Firefox by pHaez
	//
	function getUserPageSize(){
	
		var xScroll, yScroll;
	
		if (window.innerHeight && window.scrollMaxY) {
			xScroll = document.body.scrollWidth;
			yScroll = window.innerHeight + window.scrollMaxY;
		} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
			xScroll = document.body.scrollWidth;
			yScroll = document.body.scrollHeight;
		} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
			xScroll = document.body.offsetWidth;
			yScroll = document.body.offsetHeight;
		}
	
		var windowWidth, windowHeight;
		if (self.innerHeight) {	// all except Explorer
			windowWidth = self.innerWidth;
			windowHeight = self.innerHeight;
		} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
			windowWidth = document.documentElement.clientWidth;
			windowHeight = document.documentElement.clientHeight;
		} else if (document.body) { // other Explorers
			windowWidth = document.body.clientWidth;
			windowHeight = document.body.clientHeight;
		}
	
		// for small pages with total height less then height of the viewport
		if(yScroll < windowHeight){
			pageHeight = windowHeight;
		} else {
			pageHeight = yScroll;
		}
	
		// for small pages with total width less then width of the viewport
		if(xScroll < windowWidth){
			pageWidth = windowWidth;
		} else {
			pageWidth = xScroll;
		}
		var arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight);
		return arrayPageSize;
	}
	
	function createNewWindow(width,height,left,top)
	{
		var div = document.createElement('DIV');
		div.className='dhtmlgoodies_window';
		document.body.appendChild(div);
					
		var topDiv = document.createElement('DIV');
		topDiv.className='dhtmlgoodies_window_top';
		div.appendChild(topDiv);
		
		
		
		var buttonDiv = document.createElement('DIV');
		buttonDiv.className='top_buttons';
		topDiv.appendChild(buttonDiv);
		
		var img = document.createElement('IMG');
		img.src = floatingWindowImagePath + '/minimize.gif';
		img.className='minimizeButton';
		img.style.visibility = 'hidden'; // unnesesary for this relization
		buttonDiv.appendChild(img);	
		
		var img = document.createElement('IMG');
		img.src = floatingWindowImagePath + '/close.gif';
		img.className='closeButton';
		
		buttonDiv.appendChild(img);	
		
		var middleDiv = document.createElement('DIV');
		middleDiv.className='dhtmlgoodies_windowMiddle';
		div.appendChild(middleDiv);
		
		var contentDiv = document.createElement('DIV');
		contentDiv.className='dhtmlgoodies_windowContent';
		middleDiv.appendChild(contentDiv);
		
		var bottomDiv = document.createElement('DIV');
		bottomDiv.className='dhtmlgoodies_window_bottom';
		div.appendChild(bottomDiv);
		
		var img = document.createElement('IMG');
		img.src = floatingWindowImagePath + '/bottom_right.gif';
		img.className='resizeImage';
		bottomDiv.appendChild(img);		
		if (!(width && height && left && top)) {
			var arrayPageSize = getUserPageSize();
			if (!left)
				left = parseInt(arrayPageSize[2] * 0.2);
			if (!top)
				top = parseInt(arrayPageSize[3] * 0.1);
			if (!width) {
				width = arrayPageSize[2] - 2 * left;
			} else {
				if (width < arrayPageSize[2]) {
					left = parseInt((arrayPageSize[2] - width) / 2);
				} else {
					left = 0;
				}
			}
			if (!height) {
				height = arrayPageSize[3] - 2 * top;
			} else {
				if (height < arrayPageSize[3]) {
					top = parseInt((arrayPageSize[3] - height) / 2);
				} else {
					top = 0;
				}
			}

			oldLeft = left;
			oldTop = top;
			left = left + (document.documentElement.scrollLeft || document.body.scrollLeft) - document.documentElement.clientLeft;
			top = top + (document.documentElement.scrollTop || document.body.scrollTop) - document.documentElement.clientTop;
			if (oldTop !=  top) {
				left = left - 8;
			}
			if (oldLeft != left) {
				top = top - 8;
			}
		}
		windowSizeArray[windowSizeArray.length] = [width,height];
		windowPositionArray[windowPositionArray.length] = [left,top];

		div.style.width =  width + 'px';
		contentDiv.style.height = height  + 'px';		
		div.style.left =  left + 'px';
		div.style.top = top  + 'px';	
			
		return initWindows(false,div);
	}
	
	function showAjaxContent(ajaxIndex,windowId)
	{
		document.getElementById('windowContent' + windowId).innerHTML = '<div style="overflow:auto; height:100%; #width:100%;">' + ajaxObjects[ajaxIndex].response + '</div>';
	}
	
	function addContentFromUrl(url,windowId, onLoad)
	{
		var ajaxIndex = ajaxObjects.length;
		ajaxObjects[ajaxIndex] = new sack();
		var fname = url;
		var params = '';
		if (url.indexOf('?')!==-1) {
			fname = url.substr(0, url.indexOf('?'));
			params = url.substr(url.indexOf('?')+1);
		}
		
		ajaxObjects[ajaxIndex].requestFile = fname;	// Specifying which file to get
		ajaxObjects[ajaxIndex].method = 'GET';
		ajaxObjects[ajaxIndex].fix = false;
		ajaxObjects[ajaxIndex].onCompletion = function(){ showAjaxContent(ajaxIndex,windowId); if(onLoad){onLoad()}};	// Specify function that will be executed after file has been found
		ajaxObjects[ajaxIndex].runAJAX(params);		// Execute AJAX function			
	}
	
	/* This function illustrates how you can create a new custom window dynamically */

	
	/* This function illustrates how you can create a new custom window dynamically */
	
	function customFunctionCreateWindow(urlToExternalFile,width,height,left,top, modal, onLoad)
	{		
		if (modal && activeOverlay) {
			hideAllWindows();
			var arrayPageSize = getUserPageSize();
			activeOverlay.style.height = (arrayPageSize[1] + 'px');
			activeOverlay.style.display = 'block';
		}
		var divId = createNewWindow(width,height,left,top);
		
		var loaderLeft = 0;
		var loaderTop = 0;
		if(windowSizeArray[divId-1]){
			var loaderLeft = parseInt(windowSizeArray[divId-1][0] / 2) - 110;
			var loaderTop = parseInt(windowSizeArray[divId-1][1] / 2) - 20;
		}
		document.getElementById('windowContent' + divId).innerHTML = '<div style="width:220px; height:40px; text-align:center; left:'+ loaderLeft +'px; top:'+ loaderTop +'px;">Loading... <img src="' + floatingWindowImagePath + '/loader.gif" width="220" height="19"></div>';
		if(urlToExternalFile)addContentFromUrl(urlToExternalFile,divId, onLoad);	// Add content from external file
	}
		
	function mousePageXY(e)
	{
	  var x = 0, y = 0;

	  if (!e) e = window.event;

	  if (e.pageX || e.pageY)
	  {
		x = e.pageX;
		y = e.pageY;
	  }
	  else if (e.clientX || e.clientY)
	  {
		x = e.clientX + (document.documentElement.scrollLeft || document.body.scrollLeft) - document.documentElement.clientLeft;
		y = e.clientY + (document.documentElement.scrollTop || document.body.scrollTop) - document.documentElement.clientTop;
	  }

	  return {"x":x, "y":y};
	}

	function hideAllWindows(){
		var divs = top.document.getElementsByTagName('DIV');
		for(var no=0;no<divs.length;no++){
			if(divs[no].className == 'dhtmlgoodies_window'){
				divs[no].innerHTML='';
			}
		}
		activeOverlay.style.display = 'none';
		return false;
	}
	
	window.onload = initWindows;