//    Licensed Materials - Property of IBM
//
//    IBM Cognos Products:  cpscrn

//
//    (C) Copyright IBM Corp. 2005, 2011
//
//    US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
//
//
 // Copyright (C) 2008 Cognos ULC, an IBM Company. All rights reserved.
 // Cognos (R) is a trademark of Cognos ULC, (formerly Cognos Incorporated).

//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// PageLayout
/*

Classes defined in this files:
CPage 					- application level API, owns everything
	CLayout 			- holds an object hierachy that represents a layout, serializable in multiple formats
		CRow 			- a simple holder of columns, serializable
			CColumn 	- contain rows or is a valid dropzone for portlets
	CZone 				- hold the portlets for a dropzone column and manages all interactions
		CPortlet 		- represents the portlet properties and proxies for a CPanel
			CPanel 		- handles all interactions with the moveable portlets
*/

//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Utility

function _F_getElementLeft(eElement)
{
    var nLeftPos = eElement.offsetLeft;          // initialize var to store calculations
    var eParElement = eElement.offsetParent;     // identify first offset parent element  
    while (eParElement != null)
    {                                            // move up through element hierarchy
        nLeftPos += eParElement.offsetLeft - eParElement.scrollLeft;      // appending left offset of each parent
        eParElement = eParElement.offsetParent;  // until no more offset parents exist
    }
    return nLeftPos;                             // return the number calculated
}

function _F_getElementTop(eElement)
{
    var nTopPos = eElement.offsetTop;
    var eParElement = eElement.offsetParent;
    while (eParElement != null)
    {
        nTopPos += eParElement.offsetTop - eParElement.scrollTop;
        eParElement = eParElement.offsetParent;
    }
    return nTopPos;
}

function _F_serializeObject(obj, sName)
{
	var s = '';
	sName = sName != undefined ? sName : "";
	if (typeof(obj) == "object" && sName != "")
	{
		// create element
		s += '<' + sName;

		// output attributes
		for (var sProp in obj)
			if (typeof(obj[sProp]) != "object" && sProp != "_text_")
				s += _F_serializeObject(obj[sProp], sProp);

		if (typeof(obj[sProp]) == "object" || sProp == "_text_")
		{
			s += '>';
			
			// output contents
			for (var sProp in obj)
				if (typeof(obj[sProp]) == "object" || sProp == "_text_")
					s += _F_serializeObject(obj[sProp], sProp);
					
			s += '</' + sName + '>';
		}
		else
			s += '/>';
	}
	else if (typeof(obj) == "object")
	{
		// output contents
		for (var sProp in obj)
			s += _F_serializeObject(obj[sProp], sProp);
	}
	else if (sName == "_text_")
	{
		// create text node
		s += _F_Strings.xmlEncode(obj);
	}
	else if (sName != "")
	{
		// create attribute
		s += ' ' + sName + '="' + _F_Strings.xmlEncode(obj) + '"';
	}
	return s;
}

//-------------------------------------------------------------
//-- class CColumn

//- Class CColumn(int width, CRow[] rows)
function CColumn(width, rows)
{
	this.parent = null;
	this.width = width ? width : "100";
	this.rows = rows ? rows : [];
	var i, l = this.rows.length;
	for (i = 0; i < l; i++)
		this.rows[i].parent = this;
	this.id = CColumn.prototype.idCount++;
}

CColumn.prototype =
{
	idCount: 0,

	//- string getBaseId()
	getBaseId: function()
	{
		if (this.parent)
			return this.parent.getBaseId();

		return "";
	},

	//- Boolean isLast()
	isLast: function()
	{
		if (!this.parent)
			return true;
			
		return this.parent.columns[this.parent.columns.length - 1] === this;
	},

	//- Object findColumnById(string id)
	findColumnById: function(id)
	{
		if (this.id == id)
			return this;

		var obj = null;
		if (this.rows.length)
		{
			var i, l = this.rows.length;
			for (i = 0; i < l; i++)
			{
				if (obj = this.rows[i].findColumnById(id))
					break;
			}
		}
		return obj;
	},

	//- void setWidth(int w)
	setWidth: function(w)
	{
		this.width = w;
	},

	//- void getColumns(CColumn[] columns)
	getColumns: function(columns)
	{
		if (this.rows.length)
			for (var i = 0; i < this.rows.length; i++)
				this.rows[i].getColumns(columns);
		else
			columns.push(this);
	},

	//- HTMLElementImage getSpacer()
	getSpacer: function()
	{
		return $(this.getBaseId() + "zone" + this.id);
	},
	
	//- HTMLElementDiv getResizeBar()
	getResizeBar: function()
	{
		return $(this.getBaseId() + "resizebar" + this.id);
	},
	
	//- void setSpacerHeight(int h)
	setSpacerHeight: function(h)
	{
		var img = this.getSpacer();
		if (img)
			img.height = h;
		var resizeBar = this.getResizeBar();
		if (resizeBar)
			xHeight(resizeBar, h);
	},
	
	//- HTMLElementDiv getDiv()
	getDiv: function()
	{
		return xParent(this.getSpacer(), true);
	},
	
	//- Object getRect()
	getRect: function()
	{
		var div = this.getDiv();
		return { left: xPageX(div), top: xPageY(div), width: xWidth(div), height: xHeight(div) };
	},
	
	//- Object getGlobalRect()
	getGlobalRect: function()
	{
		var div = this.getDiv();
		return { left: _F_getElementLeft(div), top: _F_getElementTop(div), width: xWidth(div), height: xHeight(div) };
	},
	
	//- HTMLElementImage getSpacer()
	addRow: function(row)
	{
		this.rows.push(row);
	},

	// - string render()
	render: function()
	{
		var s = '<td id="' + this.getBaseId() + 'column_' + this.id + '" width="' + this.width + '%" valign="top" align="center">';
		if (this.rows.length)
		{
			s += '<table border="0" cellspacing="0" cellpadding="0" width="100%">';
			for (var i = 0; i < this.rows.length; i++)
				s += this.rows[i].render();
			s += '</table>';
		}
		else
		{
			// border:1px solid gray; 
			s += '<div style="width:100%; background-color: white; border:1px solid silver; background-image: url(' + RESOURCE_URI + '/pagelayout/images/arrow_template.gif); background-position: center center; background-repeat: no-repeat;">';
			s += '<img id="' + this.getBaseId() + 'zone' + this.id + '" src="' + RESOURCE_URI + '/pagelayout/images/space.gif" width="1" height="72px">';
			s += '</div>';
		}
		
		s += '</td>';
		if (!this.isLast())
		{
			s += '<td width="4px" valign="top" align="center"><div id="' + this.getBaseId() + 'resizebar' + this.id + '" baseId="' + this.getBaseId() + '" style="position:relative; width:4px; height:100%; cursor:w-resize;"' +
						' onmousedown="CResizer.mouseDown(event)">';
			s += '</div></td>';
		}

		return s;
	},

	//- string serialize()
	serialize: function()
	{
		var s = '<column' + (this.width ? ' width="' + this.width + '"' : '') + '>';

		if (this.rows.length)
		{
			for (var i = 0; i < this.rows.length; i++)
				s += this.rows[i].serialize();
		}
		else
			s += this.zone.serialize();

		s += '</column>';
		return s;
	}
}

//------------------------------------------------------------
//-- class CRow

//- Class CRow(CColumn[] columns)
function CRow(columns)
{
	this.parent = null;
//	this.height = "100%";
	this.columns = columns ? columns : [];
	for (var i = 0; i < this.columns.length; i++)
		this.columns[i].parent = this;
}

CRow.prototype =
{
	//- string getBaseId()
	getBaseId: function()
	{
		if (this.parent)
			return this.parent.getBaseId();

		return "";
	},

	//- Object findColumnById(string id)
	findColumnById: function(id)
	{
		var obj = null;
		var i, l = this.columns.length;
		for (i = 0; i < l; i++)
		{
			if (obj = this.columns[i].findColumnById(id))
				break;
		}
		return obj;
	},

	//- void getColumns(CColumn[] columns)
	getColumns: function(columns)
	{
		for (var i = 0; i < this.columns.length; i++)
			this.columns[i].getColumns(columns);
	},

	//- void addColumn(CColumn column)
	addColumn: function(column)
	{
		this.columns.push(column);
		column.parent = this;
	},
	
	//- string render()
	render: function()
	{
		var s = '<tr';
		if (this.height)
			s += ' height="' + this.height + '"';
		s += '>';
		if (this.columns.length > 1)
		{
			s += '<td valign="top">';
			s += '<table border="0" cellspacing="0" cellpadding="0" width="100%">';
			s += '<tr';
			if (this.height)
				s += ' height="' + this.height + '"';
			s += '>';
		}
		for (var i = 0; i < this.columns.length; i++)
			s += this.columns[i].render();

		if (this.columns.length > 1)
		{
			s += '</tr>';
			s += '</table>';
			s += '</td>';
		}

		s += '</tr>';
		return s;
	},

	//- string serialize()
	serialize: function()
	{
		var s = '<row' + (this.height ? ' height="' + this.height + '"' : '') + '>';

		var i, l = this.columns.length;
		for (i = 0; i < l; i++)
			s += this.columns[i].serialize();

		s += '</row>';
		return s;
	}
}

//-------------------------------------------------------------
//-- class CLayout
/*
	init()
	startSelection()
	moveSelection(x, y)
	endSelection(context)
	reflow
	hittest
*/

//- Class CLayout(CRow[] rows, Object properties)
function CLayout(rows, properties)
{
	this.parent = null;
	this.properties = properties ? properties : null;
	this.rows = rows ? rows : [];
	var i, l = this.rows.length;
	for (i = 0; i < l; i++)
		this.rows[i].parent = this;
}

CLayout.prototype =
{
	//- string getBaseId()
	getBaseId: function()
	{
		if (this.parent)
			return this.parent.getBaseId();

		return "";
	},

	//- void addRow(CRow row)
	addRow: function(row)
	{
		this.rows.push(row);
		row.parent = this;
	},
	
	//- string render()
	render: function()
	{
		var s = '<table border="0" cellspacing="0" cellpadding="0" width="100%">';
		for (var i = 0; i < this.rows.length; i++)
			s += this.rows[i].render();
		s += '</table>';
		return s;
	},
	
	//- void getColumns(CColumn[] columns)
	getColumns: function(columns)
	{
		for (var i = 0; i < this.rows.length; i++)
			this.rows[i].getColumns(columns);
	},

	//- Object findColumnById(string id)
	findColumnById: function(id)
	{
		var obj = null;
		var i, l = this.rows.length;
		for (i = 0; i < l; i++)
		{
			if (obj = this.rows[i].findColumnById(id))
				break;
		}
		return obj;
	},

	//- void setWidth(int w)
	setWidth: function(w)
	{
	},

	//- string serialize()
	serialize: function()
	{
		var s = "";
		s += '<layout xmlns="" version="1.1">';
		s += _F_serializeObject(this.properties);
		var i, l = this.rows.length;
		for (i = 0; i < l; i++)
			s += this.rows[i].serialize();
		s += '</layout>';
		return s;
	}
}


//-------------------------------------------------------------
//-- class CPanel

//- Class Cpanel(string sId)
function CPanel(sId)
{
	// Private Properties
	this.id = sId;
	this.parent = null;
	var self = this;
	var panel = $(sId + "panel");
	var caption = $(sId + "caption");
	var closebtn = $(sId + "caption_close");
	var editbtn = $(sId + "caption_edit");
	var x, y, w, h = false;
	
	//- CPage getPage()
	this.getPage = function()
	{
		return this.parent.getPage();
	}
	
	//- string getBaseId()
	this.getBaseId = function()
	{
		return this.getPage().getBaseId();
	}
	
	//- HTMLElementDiv getParentDiv()
	this.getParentDiv = function()
	{
		return this.getPage().getParentDiv();
	}
	
	// Public Methods

	//- void onunload()
	this.onunload = function()
	{
		if (xIE4Up) // clear cir refs
		{
			xDisableDrag(caption);
		}
		this.getParentDiv().removeChild(panel);
		if (closebtn != null)
			closebtn.onclick = null;
		self = panel = null;
	}
	
	//- void paint()
	this.paint = function()
	{
		if (fragments[sId] && fragments[sId].onresize)
			fragments[sId].onresize();
	}
	
	//- void position(int x, int y, int width)
	this.position = function(x, y, width)
	{
		var cx = xOffsetLeft(this.getParentDiv());
		var cy = xOffsetTop(this.getParentDiv());
		xMoveTo(panel, x - cx, y - cy);
		var content = $(this.id + "content");
		xWidth(content, width - 12);
		xWidth(panel, width - 8);
	}
	
	//- int getHeight()
	this.getHeight = function()
	{
		return xHeight(panel);
	}
	
	//- int getTop()
	this.getTop = function()
	{
		return xPageY(panel);
	}
	
	//- int getGlobalTop()
	this.getGlobalTop = function()
	{
		return _F_getElementTop(panel);
	}
	
	// Private Event Listeners
	var offset = { left: 0, top: 0 };

	function panelDragStart(e, x, y)
	{
		panel.style.backgroundColor="#eeeeee";
		panel.style.filter="alpha(opacity=50)";
		panel.style.opacity="0.3";

		offset.left = x - xLeft(panel);
		offset.top = y - xTop(panel);
		
		var div = $( self.getBaseId() + "shadow");

		xMoveTo(div, xLeft(panel), xTop(panel));
		xResizeTo(div, xWidth(panel), xHeight(panel));
		xShow(div);
		
		self.getPage().startSelection(x, y, self.parent);
	}

	function panelDragMove(e, dx, dy)
	{
		xMoveTo(panel, e.xDPX - offset.left, e.xDPY - offset.top);
		self.getPage().moveSelection(e.xDPX, e.xDPY);
	}

	function panelDragEnd(e, x, y)
	{
		panel.style.backgroundColor="";
		panel.style.filter="";
		panel.style.opacity="";
		var div = $(self.getBaseId() + "shadow");
		
		xHide(div);
		
		if (self.getPage().hasSelection())
		{
			self.getPage().movePortlet(self.parent);
		}
		else
		{
			xSlideTo(panel, xLeft(div), xTop(div), 500);
		}
		
		self.getPage().endSelection();		
	}
	
	function panelMousedown()
	{
		xZIndex(panel, CPanel.z++);
	}
  
	// Constructor Code
	xZIndex(panel, CPanel.z++);
	this.paint();
	xEnableDrag(caption, panelDragStart, panelDragMove, panelDragEnd);
	panel.onmousedown = panelMousedown;
	if (closebtn != null)
		closebtn.onclick = 
			function(evt)
			{
				if (self.parent)
					self.parent.notifyClose(self);
			};
	xShow(panel);
} 
// end Panel object prototype

CPanel.z = 0; // panel static property

function panelMarkup(parentDiv, sId, sTitle, readOnly)
{
	var panel = document.createElement("DIV");
	panel.className = "cogstyle-portlet-frame";
	panel.style.position = "absolute";
	panel.id = sId + "panel";
	parentDiv.appendChild(panel);
	var s =
			'<table border="0" cellpadding="0" cellspacing="0" width="100%">' +
				'<tr>' +
					'<td>' +

						'<div id="' + sId + 'caption_bar">' +
							'<table class="cogstyle-portlet-caption-bar" border="0" cellpadding="0" cellspacing="0" style="table-layout:fixed;" width="100%">' +
								'<tr>' +
									'<td id="' + sId + 'caption" class="cogstyle-portlet-caption" style="cursor: move;overflow: hidden;" width="*">' +
											'<div id="' + sId + 'F_caption">' +
												sTitle +
											'</div>' +
									'</td>' +
									'<td align="right" width="16px">';
		if (!readOnly){
			s+=							'<table class="cogstyle-portlet-actions" border="0" cellpadding="0" cellspacing="0">' +
											'<tr>' +
												'<td id="' + sId + 'caption_close" align="center" valign="middle" class="cogstyle-portlet-action" onmouseover="caption.prototype.mouseOver(this)" onmouseout="caption.prototype.mouseOut(this)">' +
													'<img src="' + RESOURCE_URI + '/portlet/images/portlet_actions_close.gif" border="0" alt="Close" title="Close"/>' +
												'</td>' +
											'</tr>' +
										'</table>';
		}
		s+=							'</td>' +
								'</tr>' +
							'</table>' +
						'</div>' +
					'</td>' +
				'</tr>' +
				'<tr>' +
					'<td class="cogstyle-portlet-scroll cogstyle-portlet-content cogstyle-portlet-borders">' +

						'<div id="' + sId + 'content" style="overflow:hidden">' +
							'<br><br><br>' +
							'<center>' +
								'<img src="' + RESOURCE_URI + '/pagelayout/images/indicator.gif" border="0" alt="Loading" title="Loading"/>' +
							'</center>' +
							'<br><br><br>' +
						'</div>' +

					'</td>' +
				'</tr>' +
			'</table>';
		panel.innerHTML = s;
		return panel;
}


//-------------------------------------------------------------
//-- CPortlet Class
/**
	retrieve()
	position(x, y, w)
	getHeight()
	getTop()
	getGlobalTop()
	render()
	notifyClose()
	destroy()
*/

//- Class CPortlet(string sId, string sLayoutId, string sPortletId, string sTitle)
//- Class CPortlet(Object sId)
function CPortlet(sId, sLayoutId, sPortletId, sTitle)
{
	

	this.parent = null;
	this.div = null;
	this.frag = null;

	if (typeof(sId) == 'object')
	{
		for (var sProp in sId)
			this[sProp] = sId[sProp];
	
	}
	else
	{
		this.id = sId;
		this.layoutId = sLayoutId ? sLayoutId : "";
		this.portletId = sPortletId ? sPortletId : "";
		this.title = sTitle ? sTitle : "";
		this.isNew = true;

	}
}

CPortlet.prototype =
{
	//- CPage getPage()
	getPage: function()
	{
		return this.parent.getPage();
	},
	
	//- string getBaseId()
	getBaseId: function()
	{
		return this.getPage().getBaseId();
	},
	
	//- HTMLElementDiv getParentDiv()
	getParentDiv: function()
	{
		return this.getPage().getParentDiv();
	},

	//- void init(CZone zone)
	init: function(zone)
	{
		this.parent = zone;
		if (!this.div)
		{
			this.div = panelMarkup(this.getParentDiv(), this.id, this.title, this.getPage().isReadOnly);
			this.panel = new CPanel(this.id);
			this.panel.parent = this;
		}
		
		var page = this.getPage();
		if (page != null && page.storeId != null )
			if(this.isNew)
				this.path = "/cm/" + encodeURIComponent(page.storeId) +"?add=" + encodeURIComponent(this.portletId);
			else	
				this.path = "/cm/" + encodeURIComponent(page.storeId) +"?query=" + encodeURIComponent(this.portletId);
		else
			this.path = "/cm/" + this.portletId;
		
		this.retrieve();
	},

	//- void retrieve()
	retrieve: function()
	{
		if (this.frag == null)
		{
			this.frag = new fragment(this.path, this.id);
			this.frag.mode = "preview";
			var _self = this;
			var _hook = this.frag.oncompleted;
			var _frag = this.frag
			this.frag.oncompleted = function(bComplete) 
					{ 
						if (typeof(_hook) == "function")
							_hook.call(_frag, bComplete);
						_self.panel.paint(); 
						_self.parent.dirty = true;
						_self.parent.parent.reflow();
					};
			this.frag.retrieve();
			this.panel.paint();
		}
	},
	
	//- void position(int x, int y, int w)
	position: function(x, y, w)
	{
		this.panel.position(x, y, w);
	},
	
	//- int getHeight()
	getHeight: function()
	{
		return this.panel.getHeight();
	},
	
	//- int getTop()
	getTop: function()
	{
		return this.panel.getTop();
	},

	//- int getGlobalTop()
	getGlobalTop: function()
	{
		return this.panel.getGlobalTop();
	},
	
	//- string render()
	notifyClose: function(panel)
	{
		if (this.parent)
			this.parent.notifyClose(this);
	},

	//- string serialize()
	serialize: function()
	{
		var s = 
				'<cps:portletInstance>' +
					'<cps:id>' + this.layoutId + '</cps:id>' +
					'<cps:portletId>' + this.portletId + '</cps:portletId>';
		if (this.context)
		{
			s +=
					'<wsrp:portletContext>' + 
						'<wsrp:portletHandle>' + this.context.portletHandle + '</wsrp:portletHandle>' +
						'<wsrp:portletState>' + this.context.portletState + '</wsrp:portletState>';

			if (this.context.portletType)
			{
				s += 
						'<wsrp:extensions>' +
							'<cpsext:info xmlns:cpsext="http://developer.cognos.com/schemas/cps/wsrp/extensions/1/">' +
								'<cpsext:type>' + this.context.portletType + '</cpsext:type>' +
							'</cpsext:info>' +
						'</wsrp:extensions>';
			}
			s +=
					'</wsrp:portletContext>';
		}
		s += 
				'</cps:portletInstance>';
		return s;
	},
	
	//- void destroy()
	destroy: function()
	{
		this.panel.onunload();
	}
}

//-------------------------------------------------------------
// column resize handler singleton

var CResizer =
{
	td1: null,
	td2: null,
	region: null,
	range: 0,
	min: 0,
	max: 0,
	baseId: "",
	columnId1: "",
	columnId2: "",

	mouseDown: function(evt)
	{
		xPreventDefault(evt);

		var e = new xEvent(evt);
		this.funcMove = function(e) { CResizer.mouseMove(e) };
		this.funcUp = function(e) { CResizer.mouseUp(e) };

		xAddEventListener(document, "mousemove", this.funcMove, true);
		xAddEventListener(document, "mouseup", this.funcUp, true);
		
		var div = e.target;
		
		this.baseId = div.getAttributeNode("baseId").nodeValue;
		var parentDiv = $(this.baseId + "content");
		
		var tdSizer = xParent(div, true);
		var tr = xParent(tdSizer, true);
		var tbody = xParent(tr, true);
		var table = xParent(tbody, true);
	
		var td1 = xPrevSib(tdSizer, "TD");
		var td2 = xNextSib(tdSizer, "TD");
		var sLabel = "column_";
		this.columnId1 = td1.id.substring(td1.id.indexOf(sLabel) + sLabel.length);
		this.columnId2 = td2.id.substring(td2.id.indexOf(sLabel) + sLabel.length);
		
		var cx =  xOffsetLeft(parentDiv);
		var cy = xOffsetTop(parentDiv);
	
		var boxX = xPageX(table) - cx;
		var boxY = xPageY(table) - cy;
		var boxW = xWidth(table);
		var boxH = xHeight(table);
		
		var box = $(this.baseId + "resizeBox");
		var bar = $(this.baseId + "resizeBar");
		var info = $(this.baseId + "resizeInfo");
		var infoLeft = $(this.baseId + "resizeLeft");
		var infoRight = $(this.baseId + "resizeRight");
	
		xMoveTo(box, boxX, boxY);
		xResizeTo(box, boxW, boxH);
		
		var x = xPageX(div) - cx;
		var y = (xPageY(div) - cy) + 2;
		xMoveTo(bar, x, boxY);
		xResizeTo(bar, 4, boxH);
		xMoveTo(info, x - 30, Math.max(cy, boxY) + 20);
		
		infoLeft.innerHTML = td1.width;
		infoRight.innerHTML = td2.width;
		
		this.td1 = td1;
		this.td2 = td2;
		
		this.range = parseInt(td1.width) + parseInt(td2.width);
		this.region = { left: xPageX(td1) - cx, width: xWidth(td1) + xWidth(td2) };
	
		var pixelRange = this.region.width * 100 / this.range;
		this.min = this.region.left + (pixelRange / 10);
		this.max = this.region.left + this.region.width - (pixelRange / 10);
	
		xShow(box);
		xShow(bar);
		xShow(info);
	},

	mouseMove: function(evt)
	{
		xPreventDefault(evt);

		var e = new xEvent(evt);
		var div = e.target;
		var parentDiv = $(this.baseId + "content");
	
		var bar = $(this.baseId + "resizeBar");
		var info = $(this.baseId + "resizeInfo");
		var infoLeft = $(this.baseId + "resizeLeft");
		var infoRight = $(this.baseId + "resizeRight");
		
		var cx = xOffsetLeft(parentDiv) - xScrollLeft(parentDiv);
		var x = Math.min(Math.max(e.pageX - cx, this.min), this.max);
	
		var sizeLeft = x - this.region.left;
		var sizeRight = this.region.width - sizeLeft;
	
		xLeft(bar, x);
		xLeft(info, x - 30);
	
		infoLeft.innerHTML = Math.round(sizeLeft * this.range / this.region.width) + "%";
		infoRight.innerHTML =  Math.round(sizeRight * this.range / this.region.width) + "%";
	},
	
	mouseUp: function(evt)
	{
		xPreventDefault(evt);

		var e = new xEvent(evt);
	
		var parentDiv = $(this.baseId + "content");
	
		xRemoveEventListener(document, "mousemove", this.funcMove, true);
		xRemoveEventListener(document, "mouseup", this.funcUp, true);
	
		var x = Math.min(Math.max(e.pageX - xOffsetLeft(parentDiv), this.min), this.max);
		var sizeLeft = x - this.region.left;
		var sizeRight = this.region.width - sizeLeft;
		var W1 = Math.round(sizeLeft * this.range / this.region.width);
		var W2 = Math.round(sizeRight * this.range / this.region.width);
		this.td1.width = W1 + "%";
		this.td2.width = W2 + "%";
	
		var box = $(this.baseId + "resizeBox");
		var bar = $(this.baseId + "resizeBar");
		var info = $(this.baseId + "resizeInfo");
		xHide(box);
		xHide(bar);
		xHide(info);

		this.td1 = null;
		this.td2 = null;
	
		var page = eval(this.baseId + "page");
		if (page)
		{
			page.setColumnWidths(this.columnId1, W1, this.columnId2, W2);
			page.reflow();
		}
	}
}


//-------------------------------------------------------------
// CZone Class
/**
	setColumn(column)
	destroy()
	getRect()
	hittest(x, y)
	insertHittest(x, y)
	appendPortlet(portlet)
	insertPortlet(index, portlet)
	reflow()
	notifyClose()
*/

//- class CZone(CPortlet[] portlets)
function CZone(portlets)
{
	this.parent = null;
	this.column = null;
	this.portlets = portlets ? portlets : [];
	var i, l = this.portlets.length;
	for (i = 0; i < l; i++)
		this.portlets[i].parent = this;

	// reflow logic
	this.rows = [];
	this.lastRect = { };
	this.lastHeight = 0;
	this.dirty = true;
}
	
CZone.prototype =
{
	//- void init()
	init: function()
	{
		var i, l = this.portlets.length;
		for (i = 0; i < l; i++)
			this.portlets[i].init(this);
	},
	
	//- void setDirty(Boolean bDirty)
	setDirty: function(bDirty)
	{
		this.dirty = bDirty == undefined ? true : bDirty;
	},
	
	// void appendPortlet(portlet)
	appendPortlet: function(portlet)
	{
		this.portlets.push(portlet);
		portlet.init(this);
		this.setDirty();
		this.reflow();
	},
	
	//- void insertPortlet(int index, CPortlet portlet)
	insertPortlet: function(index, portlet)
	{
		if (index > -1)
			_F_Array.insert(this.portlets, index, portlet);
		else
			this.portlets.push(portlet);
			
		portlet.init(this);
		this.setDirty();
		this.reflow();
	},

	//- void insertPortlet(int index, CPortlet portlet)
	removePortlet: function(portlet)
	{
		_F_Array.remove(this.portlets, portlet);
		this.setDirty();
	},

	//- CPage getPage()
	getPage: function()
	{
		return this.parent;
	},
	
	//- string getBaseId()
	getBaseId: function()
	{
		return this.getPage().getBaseId();
	},
	
	//- HTMLElementDiv getParentDiv()
	getParentDiv: function()
	{
		return this.getPage().getParentDiv();
	},

	//- void setBackground(string color)
	setBackground: function(color)
	{
		this.column.getDiv().style.backgroundColor = color;
	},

	//- void setColumn(CColumn column)
	setColumn: function(column)
	{
		this.column = column;
		column.zone = this;

		this.lastHeight = 0;
		this.setDirty();
	},
	
	//- void destroy()
	//-- destroy all of the portlets
	destroy: function()
	{
		for (var i = 0; i < this.portlets.length; i++)
			this.portlets[i].destroy();
	},

	//- rect getRect()
	getRect: function()
	{
		return this.column.getRect();
	},

	//- Boolean hittest(int x, int y)
	hittest: function(x, y)
	{
		var rc = this.column.getGlobalRect();
		return  (x >= rc.left && x < rc.left + rc.width && y >= rc.top && y < rc.top + rc.height);
	},

	//- int insertHittest(int y)
	insertHittest: function(y)
	{
		var index = -1;
		var closest = 10000000;
		
		var rc = this.column.getGlobalRect();
		var top = rc.top;
		
		for (var i = 0; i < this.rows.length; i++)
		{
			var diff = Math.abs(y - (top + this.rows[i]));
			if (diff < closest)
			{
				closest = diff;
				index = i;
			}
		}
			
		return index;
	},

	//- void reflow()
	reflow: function()
	{
		var rc = this.column.getRect();

		// if dirty or we added portlets or the column rect has changed
		if (this.dirty ||
			(rc.left != this.lastRect.left || rc.top != this.lastRect.top || rc.width != this.lastRect.width || rc.height != this.lastRect.height))
		{
			this.lastRect = rc;
			if (this.portlets.length)
			{
				this.rows.length = this.portlets.length + 1;
				var i, totalHeight = 0, l = this.portlets.length;
				for (i = 0; i < l; i++)
				{
					this.portlets[i].position(rc.left + 2, rc.top + totalHeight, rc.width - 4);
					this.rows[i] = totalHeight;
					totalHeight += this.portlets[i].getHeight();
				}
				this.rows[i] = totalHeight;
			}
			else
			{
				this.rows.length = 0;
				totalHeight = 72;
			}
			
			if (this.lastHeight != totalHeight)
			{
				this.lastHeight = totalHeight;
				this.column.setSpacerHeight(totalHeight);
				this.setDirty();
			}
			else
				this.setDirty(false);
		}
		return this.dirty;
	},

	//- void notifyClose(CPortlet portlet)
	notifyClose: function(portlet)
	{
		// remove portlet
		var oldportlet = this.portlets.remove(portlet);
		portlet.destroy();
		this.setDirty();
		this.reflow();
		// reflow parent
		this.parent.reflow();
	},

	//- string serialize()
	serialize: function()
	{
		var s = "";
		
		var i, l = this.portlets.length;
		for (i = 0; i < l; i++)
			s += '<portlet id="' + this.portlets[i].layoutId + '"/>';

		return s;
	}
}


//-------------------------------------------------------------
// CPage Class
/*
	render()
	setLayout(layout)
	getLayout()
	hittest(x, y)
	insertPortlet(portlet)
	movePortlet(portlet)
	selectZone(zone)
	hasSelection()
	startSelection()
	moveSelection(x, y)
	endSelection()
	reflow
	hittest
*/

//- Class CPage(string baseId, string storeid, HTMLElementDiv parentDiv, CZone[] zones, Object properties)
function CPage(baseId, storeId, parentDiv, zones, properties)
{
	this.isReadOnly = false;
	this.baseId = baseId;
	this.parentDiv = $(parentDiv);
	this.layout = null;
	this.storeId = storeId;
	this.zones = zones ? zones : [];
	var i, l = this.zones.length;
	for (i = 0; i < l; i++)
		this.zones[i].parent = this;

	if (properties)
		for (var sProp in properties)
			this[sProp] = properties[sProp];

	this.currentZone = -1;
	this.currentInsert = -1;

	//Reflow the page twice a second. This is allows the layout to deal with portlets whose size changes after the initial retrieve.
	var _self = this;
	this.funcForceReflow = function()
					{
						_self.reflow(true);
					};
	this.reflowTimer = setInterval(this.funcForceReflow, 500);
}

CPage.prototype =
{
	//- string getBaseId()
	getBaseId: function()
	{
		return this.baseId;
	},

	//- HTMLElementDiv getParentDiv()
	getParentDiv: function()
	{
		return this.parentDiv;
	},

	//- void initZones(HTMLElementDiv div, CLayout layout)
	initZones: function(div, layout)
	{
		this.layout = layout;
		layout.parent = this;
		$(div).innerHTML = layout.render();

		columns = [];
		layout.getColumns(columns);

		// bind zone to column
		var i, l = columns.length;
		for (i = 0; i < l; i++)
			this.zones[i].setColumn(columns[i]);

		var i, l = this.zones.length;
		for (i = 0; i < l; i++)
			this.zones[i].init(this);

		this.reflow();
	},

	//- void setLayout(HTMLElementDiv div, CLayout layout)
	setLayout: function(div, layout)
	{
		this.layout = layout;
		layout.parent = this;
		$(div).innerHTML = layout.render();
		
		columns = [];
		layout.getColumns(columns);
		
		// if there are more columns than zones, create extra zones
		if (columns.length > this.zones.length)
		{
			for (var i = this.zones.length; i < columns.length; i++)
			{
				var zone = new CZone();
				this.zones.push(zone);
				zone.parent = this;
			}
		}
		// if less, copy portlets to last zone and remove extra zones
		else if (columns.length < this.zones.length)
		{
			var lastZone = this.zones[columns.length - 1];
			var len = this.zones.length;
			for (var i = columns.length; i < len; i++)
			{
				var zone = this.zones.pop();
				for (var j = 0; j < zone.portlets.length; j++)
				{
					var portlet = zone.portlets[j];
					lastZone.portlets.push(portlet);
					portlet.parent = lastZone;
				}
			}
		}
		
		// bind zone to column
		for (var i = 0; i < columns.length; i++)
			this.zones[i].setColumn(columns[i]);
			
		this.reflow();
	},
	
	//- CLayout getLayout()
	getLayout: function()
	{
		return this.layout;
	},
	
	//- int hittest(int x, int y)
	hittest: function(x, y)
	{
		var cx = xOffsetLeft(this.parentDiv);
		var cy = xOffsetTop(this.parentDiv);

		for (var i = 0; i < this.zones.length; i++)
			if (this.zones[i].hittest(x, y))
				return i;

		return -1;
	},
	
	//- void insertPortlet(CPortlet portlet)
	insertPortlet: function(portlet)
	{
		if (this.currentZone > -1)
			this.zones[this.currentZone].insertPortlet( this.currentInsert, portlet);

		this.reflow();
	},
	
	//- void movePortlet(CPortlet portlet)
	movePortlet: function(portlet)
	{
		// requires selection point
		if (this.currentZone == -1)
			return;
		var zoneTo = this.zones[this.currentZone];

		// find portlet's zone and remove it
		var zoneFrom = portlet.parent;
		zoneFrom.removePortlet(portlet);
		
		// insert portlet at insertion point
		zoneTo.insertPortlet( this.currentInsert, portlet);

		this.reflow();
	},
	
	//- void reflow(Boolean bForce)
	reflow: function(bForce)
	{
		if (bForce)
			for (var i = 0; i < this.zones.length; i++)
				this.zones[i].setDirty();
	
		var dirty = false;
		do
		{
			dirty = false;
			for (var i = 0; i < this.zones.length; i++)
			{
				if (dirty = this.zones[i].reflow())
					break;
			}
		}
		while (dirty);
	},
	
	//- void selectZone(CZone zone, int insert)
	selectedZone: -1,
	selectZone: function(zone, insert)
	{
		var div = $(this.getBaseId() + "selector");
		if (zone > -1)
		{
			var rc = this.zones[zone].getRect();
			var parentDiv = this.getParentDiv();
			var cx = xOffsetLeft(parentDiv);
			var cy = xOffsetTop(parentDiv);
			var top = rc.top;
			if (insert > -1)
				top += this.zones[zone].rows[insert];

			xMoveTo(div, (rc.left + 2) - cx, (top - 2) - cy);
			xResizeTo(div, rc.width - 4, 6);
			xShow(div);
		}
		else
		{
			xHide(div);
		}
		if (this.selectedZone != zone)
		{
			if (this.selectedZone > -1)
				this.zones[this.selectedZone].setBackground("white");
			if (zone > -1)
				this.zones[zone].setBackground("#f0f0f0");
			this.selectedZone = zone;
		}
	},

	//- void startSelection(int x, int y, Cportlet portlet)
	startSelection: function(x, y, portlet)
	{
		clearInterval(this.reflowTimer);
		this.sourceZone = portlet ? _F_Array.indexOf(this.zones, portlet.parent) : -1;
		this.sourceIndex = portlet ? _F_Array.indexOf(this.zones[this.sourceZone].portlets, portlet) : -1;
		this.currentZone = -1;
	},
	
	//- void moveSelection(int x, int y)
	moveSelection: function(x, y)
	{
		var zone = this.hittest(x, y);
		var insert = -1;
		if (zone > -1)
			insert = this.zones[zone].insertHittest(y);
		
		if (this.sourceZone != -1 &&
			zone == this.sourceZone && 
			(insert == this.sourceIndex || insert == this.sourceIndex + 1))
		{
			zone = -1;
		}
		
		if (!this.isReadOnly &&  (zone != this.currentZone || insert != this.currentInsert))
		{
			this.currentZone = zone;
			this.currentInsert = insert;
			this.selectZone(zone, insert);
		}
	},

	//- void endSelection()
	endSelection: function()
	{
		this.selectZone(-1);
		this.reflowTimer = setInterval(this.funcForceReflow, 500);
	},
	
	//- void hasSelection()
	hasSelection: function()
	{
		return this.currentZone > -1;
	},

	//- void setColumnWidths(string id1, int w1, string id2, int w2)
	setColumnWidths: function( id1, w1, id2, w2)
	{
		var c1 = this.layout.findColumnById(id1);
		var c2 = this.layout.findColumnById(id2);
		if (c1 && c2)
		{
			c1.setWidth(w1);
			c2.setWidth(w2);
		}
	},

	//- string serialize()
	serialize: function()
	{
		var s = 
				'<cps:pagelet xmlns:wsrp="urn:oasis:names:tc:wsrp:v1:types" xmlns:cps="http://developer.cognos.com/schemas/cps/asm/objects/1/">' +
					'<cps:id>' + this.id + '</cps:id>' +
					'<cps:name>' + this.name + '</cps:name>' +
					'<cps:description>' + this.description + '</cps:description>' +
					'<cps:screenTip>' + this.screenTip + '</cps:screenTip>' +

					'<cps:layout>' + this.layout.serialize() + '</cps:layout>';

			var i , l = this.zones.length;
			for (i = 0; i < l; i++)
			{
				var j, lz = this.zones[i].portlets.length;
				for (j = 0; j < lz; j++)
					s += this.zones[i].portlets[j].serialize();
			}

		s += '</cps:pagelet>';
		return s;
	}
}