/*!
 * lhgcore Dialog Plugin v3.1.3
 * Date : 2010-06-12 15:09:11
 * Copyright (c) 2009 - 2010 By Li Hui Gang
 */

;(function($){

$.ui = $.ui || {};

var top = window, cover, doc, dragDiv, ZIndex, dcount = 0;

while( top.parent != top )
    top = top.parent;
	
doc = top.document;

function getsrc()
{
	if( $.browser.ie )
		return ( $.browser.i7 ? '' : "javascript:''" );
	else
		return 'javascript:void(0);';
};


function root(a)
{
	a=a||l;
	return a.compatMode==="CSS1Compat"?a.documentElement:a.body;
};

function getZIndex()
{
    if( !ZIndex ) ZIndex = 999;
	
	return ++ZIndex;
};

function reSizeHdl()
{
    var rel = root( doc );
	
	$(cover).css({
	    width: Math.max( rel.scrollWidth, rel.clientWidth || 0 ) - 1 + 'px',
		height: Math.max( rel.scrollHeight, rel.clientHeight || 0 ) - 1 + 'px'
	});
};

$.fn.fixie6png = function()
{
    var els = $('*',this), iebg, bgIMG;
	
	for( var i = 0, l = els.length; i < l; i++ )
	{
	    bgIMG = $(els[i]).css('backgroundImage');
		if( bgIMG.indexOf('.png') !== -1 )
		{
		    iebg = bgIMG.replace(/url\(|"|\)/g,'');
			els[i].style.backgroundImage = 'none';
			els[i].runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + iebg + "',sizingMethod='scale')";
		}
	}
};

$.ui.getScrollSize = function( $ )
{
    $ = $ || window;
	if( 'pageXOffset' in $ )
	{
	    return {
		    x: $.pageXOffset || 0,
			y: $.pageYOffset || 0
		};
	}
	else
	{
	    var doc = root( $.document );
		return {
		    x: doc.scrollLeft || 0,
			y: doc.scrollTop || 0
		};
	}
};

$.ui.getClientSize = function( $ )
{
    $ = $ || window;
	var doc = root( $.document );
	
	return {
	    w: doc.clientWidth || 0,
		h: doc.clientHeight || 0
	}
};

function cleanDiv()
{
    $(dragDiv).remove();
	dragDiv = null;
	
	if( cover )
	{
	    $(cover).remove();
		cover = null;
	}
};

$.fn.dialog = function( opts )
{
    var dialog = false;
	
	if( this[0] )
	    dialog = new $.ui.dialog( opts, this[0] );
	
	return dialog;
};

$.ui.dialog = function( opts, elem )
{
    var self = this, r = this.opt =
	$.extend({
	    height: 300,
		width: 400,
		id: 'lhgdlgId',
		event: 'click',
		link: false,
		btns: false,
		fixed: false,
		drag: true,
		resize: true,
		top: 'center',
		left: 'center',
		title: 'lhgdialog',
		regDragWindow: []
	}, opts || {} );
	
	if( r.SetTopWindow )
	{
	    top = r.SetTopWindow;
		doc = top.document;
	}
	
	if( dcount === 0 )
	{
		if( $.browser.ie && !$.browser.i7 )
		{
			try{
				doc.execCommand( 'BackgroundImageCache', false, true );
			}catch(e){}
		}
		dcount += 1;
	}
	
	iframe = $.browser.ie && !$.browser.i7 ? '<iframe hideFocus="true" ' + 
	    'frameborder="0" src="' + getsrc() + '" style="position:absolute;' +
		'z-index:-1;width:100%;height:100%;top:0px;left:0px;filter:' +
		'progid:DXImageTransform.Microsoft.Alpha(opacity=0)"><\/iframe>' : '';
	
	if( !dragDiv )
	{
		dragDiv = $('<div id="lhgdig_cDiv" style="position:absolute;top:0px;left:0px;' +
		    'border:1px solid #000;background-color:#999;display:none;"></div>',doc)
			.css('opacity',0.3).appendTo('body').bind('contextmenu', function(ev){ ev.preventDefault(); })[0];
	}
	
	this.SetIFramePage = function()
	{
		var innerDoc, text;
		
		if( r.html )
		{
			if( typeof r.html === 'string' )
				innerDoc = '<div id="lhgdig_inbox" class="lhgdig_inbox" style="display:none">' + r.html + '</div>';
			else
				innerDoc = '<div id="lhgdig_inbox" class="lhgdig_inbox" style="display:none"></div>';
		}
		else if( r.page )
		{
			innerDoc = ['<iframe frameborder="0" src="', r.page, '" scrolling="no" ',
				'id="lhgfrm" style="display:none;width:100%;height:100%;"><\/iframe>'].join('');
		}
	
		text = [
			'<div id="', r.id, '" class="lhgdig" style="width:', r.width, 'px;height:', r.height, 'px;">',
				'<table border="0" cellspacing="0" cellpadding="0">',
				'<tr>',
					'<td class="lhgdig_leftTop"></td>',
					'<td id="lhgdig_drag" class="lhgdig_top">',
						'<div class="lhgdig_title"><span id="lhgdig_icon" class="lhgdig_icon"></span>', r.title, '</div>',
						'<div id="lhgdig_xbtn" class="lhgdig_xbtn"></div>',
					'</td>',
					'<td class="lhgdig_rightTop"></td>',
				'</tr>',
				'<tr>',
					'<td class="lhgdig_left" id="lhgdigLeft"></td>',
					'<td>',
						'<table border="0" cellspacing="0" cellpadding="0">',
						'<tr>',
							'<td id="lhgdig_content" class="lhgdig_content">',
								innerDoc, '<div id="throbber" class="lhgdig_throbber"><span id="lhgdig_load">loading...</span></div>',
							'</td>',
						'</tr>',
						r.btns ? '<tr><td id="lhgdig_btns" class="lhgdig_btns"><div id="lhgdig_bDiv" class="lhgdig_bDiv"></div></td></tr>' : '',
						'</table>',
					'</td>',
					'<td class="lhgdig_right"></td>',
				'</tr>',
				'<tr>',
					'<td class="lhgdig_leftBottom"></td>',
					'<td class="lhgdig_bottom"></td>',
					'<td id="lhgdig_drop" class="lhgdig_rightBottom"></td>',
				'</tr>',
				'</table>', iframe,
			'</div>'
		].join('');
		
		return text;
	};
	
	this.ShowDialog = function()
	{
	    if( $('#'+r.id,doc)[0] )
		    return;
		
		if( r.cover )
		    this.ShowCover();
		
		var fixpos = r.fixed && (!$.browser.ie || $.browser.i7) ? 'fixed' : 'absolute',
		
		html = this.SetIFramePage();
		
		this.dlg = $(html,doc).css({
		    position: fixpos, zIndex: getZIndex()
		}).appendTo(doc.body)[0];
		
		this.iPos( this.dlg, r.top, r.left, r.fixed );
		
		this.setDialog( this.dlg );
	
	    if( r.drag )
		    this.initDrag( $('#lhgdig_drag',this.dlg)[0] );
		
		if( r.resize )
		    this.initSize( $('#lhgdig_drop',this.dlg)[0] );
		
		if( $.browser.ie && !$.browser.i7 )
		{
		    var ie6PngRepair = $('html',doc).css('ie6PngRepair') === 'true' ? true : false;
			if( ie6PngRepair ) $(this.dlg).fixie6png();
		}
		
		this.lhgDigxW = $('#lhgdigLeft',this.dlg)[0].offsetWidth * 2;

		this.reContentSize( this.dlg );
		
		if( r.html && r.cusfn ) r.cusfn();
		
		if( r.html )
		{
		    $('#throbber',this.dlg).css('display','none');
			$('#lhgdig_inbox',this.dlg)[0].style.display = 'inline-block';
		}
	};
	
	this.iPos = function( dig, tp, lt, fix )
	{
	    var cS = $.ui.getClientSize(top),
		    sS = $.ui.getScrollSize(top),
			dW = dig.offsetWidth,
			dH = dig.offsetHeight, x, y;
		
		if( fix )
		{
			if( $.browser.ie && !$.browser.i7 )
			{
				$('html',doc).addClass('lhgdig_ie6_fixed');
				$('<div class="lhgdig_warp"></div>',doc).appendTo(doc.body).append(dig).css('zIndex',getZIndex());
			}
			
			lx = 0;
			rx = cS.w - dW;
			cx = ( rx - 20 ) / 2;
			
			ty = 0;
			by = cS.h - dH;
			cy = ( by - 20 ) / 2;
		}
		else
		{
			lx = sS.x;
			cx = sS.x + ( cS.w - dW - 20 ) / 2;
			rx = sS.x + cS.w - dW;
			
			ty = sS.y;
			cy = sS.y + ( cS.h - dH - 20 ) / 2;
			by = sS.y + cS.h - dH;
		}
		
		switch( lt )
		{
		    case 'center':
				x = cx;
				break;
			case 'left':
				x = lx;
				break;
			case 'right':
				x = rx;
				break;
			default:
			    if(fix) lt = lt - sS.x;
				x = lt; break;
		}
		
		switch( tp )
		{
		    case 'center':
				y = cy;
			    break;
			case 'top':
			    y = ty;
				break;
			case 'bottom':
			    y = by;
				break;
			default:
			    if(fix) tp = tp - sS.y;
				y = tp; break;
		}
		
		$(dig).css({ top: y + 'px', left: x + 'px' });
	};
	
	this.setDialog = function( dlg )
	{
		this.win = window;
		this.top = top;
		
		$(dlg).bind('contextmenu',function(ev){
		    ev.preventDefault();
		}).bind( 'mousedown', self.setIndex );
		
		$('#lhgdig_xbtn',dlg).hover(function(){
		    $(this).addClass('lhgdig_xbtnover');
		},function(){
		    $(this).removeClass('lhgdig_xbtnover');
		}).click( self.cancel );
		
		if( r.html && r.html.nodeType )
		    $('#lhgdig_inbox',dlg).append( r.html );
		
		this.regWindow = [ window ];
		
		if( r.regDragWindow.length > 0 )
		    this.regWindow.push( r.regDragWindow );
		
		if( top != window )
		    this.regWindow.push( top );
		
		if( r.page )
		{
		    this.infrm = $('#lhgfrm',dlg)[0];
			
		    if( !r.link )
			{
			    this.inwin = this.infrm.contentWindow;
				this.infrm.dg = this;
			}
			
			$(this.infrm).bind('load',function(){
				if( !self.opt.link )
				{
				    var indw = $.browser.ie ?
					    this.contentWindow.document : this.contentWindow;
					$(indw).bind( 'mousedown', self.setIndex );
					self.regWindow.push( this.contentWindow );
				}
				
			    $('#throbber',self.dlg)[0].style.display = 'none';
				this.style.display = 'block';
			});
		}
	};
	
	this.reContentSize = function( dig )
	{
	    var tH = $('#lhgdig_drag',dig)[0].offsetHeight,
		    bH = $('#lhgdig_drop',dig)[0].offsetHeight,
			xW = this.lhgDigxW,
			nH = r.btns ? $('#lhgdig_btns',dig)[0].offsetHeight : 0,
			iW = parseInt( dig.style.width, 10 ) - xW,
			iH = parseInt( dig.style.height, 10 ) - tH - bH - nH;
		
		$('#lhgdig_content',dig).css({
		    width: iW + 'px', height: iH + 'px'
		});
		
		if( r.html )
		{
		    $('#lhgdig_inbox',dig).css({
			    width: iW + 'px', height: iH + 'px'
			});
		}
		
		this.SetLoadLeft();
	};
	
	this.reDialogSize = function( width, height )
	{
		$(this.dlg).css({
		    'width': width + 'px', 'height': height + 'px'
		});
		
		this.reContentSize( this.dlg );
	};
	
	this.initDrag = function( elem )
	{
	    var lacoor, maxX, maxY, curpos, regw = this.regWindow, cS, sS;
		
		function moveHandler(ev)
		{
			var curcoor = { x: ev.screenX, y: ev.screenY };
		    curpos =
		    {
		        x: curpos.x + ( curcoor.x - lacoor.x ),
			    y: curpos.y + ( curcoor.y - lacoor.y )
		    };
			lacoor = curcoor;
			
			if( r.rang )
			{
			    if( curpos.x < sS.x ) curpos.x = sS.x;
				if( curpos.y < sS.y ) curpos.y = sS.y;
				if( curpos.x > maxX ) curpos.x = maxX;
				if( curpos.y > maxY ) curpos.y = maxY;
			}
			
			$(dragDiv).css({ left: curpos.x + 'px', top: curpos.y + 'px' });
		};
		
		function upHandler(ev)
		{
			for( var i = 0, l = regw.length; i < l; i++ )
			{
			    $( regw[i].document ).unbind( 'mousemove', moveHandler );
				$( regw[i].document ).unbind( 'mouseup', upHandler );
			}
			
		    if( $.browser.ie )
			    dragDiv.releaseCapture();
			
			dragDiv.style.display = 'none'; lacoor = null; elem = null;
			
			if( self.opt.fixed )
			    $(self.dlg).css({ left: curpos.x - sS.x + 'px', top: curpos.y - sS.y + 'px' });
			else
			    $(self.dlg).css({ left: curpos.x + 'px', top: curpos.y + 'px' });
		};
		
		$(elem).bind( 'mousedown', function(ev){
		    if( ev.target.id === 'lhgdig_xbtn' ) return;

			cS = $.ui.getClientSize(top);
			sS = $.ui.getScrollSize(top);
			
			var lt = self.dlg.offsetLeft,
			    tp = self.dlg.offsetTop,
			    dW = self.dlg.clientWidth,
			    dH = self.dlg.clientHeight;
			
			curpos = self.opt.fixed ?
			    { x: lt + sS.x, y: tp + sS.y } : { x: lt, y: tp };
			
			lacoor = { x: ev.screenX, y: ev.screenY };
			
			maxX = self.opt.fixed ? cS.w - dW : cS.w + sS.x - dW;
			maxY = self.opt.fixed ? cS.h - dH : cS.h + sS.y - dH;
			
			$(dragDiv).css({
			    width: dW - 2 + 'px', height: dH - 2 + 'px', left: curpos.x + 'px',
				top: curpos.y + 'px', zIndex: parseInt(ZIndex,10) + 2, display: ''
			});
			
			for( var i = 0, l = regw.length; i < l; i++ )
			{
				$( regw[i].document ).bind( 'mousemove', moveHandler );
				$( regw[i].document ).bind( 'mouseup', upHandler );
			}
			
			ev.preventDefault();
			
			if( $.browser.ie ) dragDiv.setCapture();
		});
	};
	
	this.initSize = function( elem )
	{
	    var lacoor, dH, dW, curpos, regw = this.regWindow, dialog, cS, sS;
		
		function moveHandler(ev)
		{
		    var curcoor = { x : ev.screenX, y : ev.screenY };
			dialog = {
				w: curcoor.x - lacoor.x,
				h: curcoor.y - lacoor.y
			};
			
			if( dialog.w < 200 ) dialog.w = 200;
			if( dialog.h < 100 ) dialog.h = 100;
			
			$(dragDiv).css({
			    width: dialog.w + 'px', height: dialog.h + 'px',
				top: curpos.y + 'px', left: curpos.x + 'px'
			});
		};
		
		function upHandler(ev)
		{
			for( var i = 0, l = regw.length; i < l; i++ )
			{
			    $( regw[i].document ).unbind( 'mousemove', moveHandler );
				$( regw[i].document ).unbind( 'mouseup', upHandler );
			}
			
		    if( $.browser.ie )
			    dragDiv.releaseCapture();
			
			self.reDialogSize( dialog.w, dialog.h );
			dragDiv.style.display = 'none'; lacoor = null; elem = null;
		};
	
	    $(elem).bind( 'mousedown', function(ev){
			dW = self.dlg.clientWidth;
			dH = self.dlg.clientHeight;
			
			dialog = { w: dW, h: dH };
			
			cS = $.ui.getClientSize(top);
			sS = $.ui.getScrollSize(top);
			
			var lt = self.dlg.offsetLeft,
			    tp = self.dlg.offsetTop;
			
			curpos = self.opt.fixed ?
			    { x: lt + sS.x, y: tp + sS.y } : { x: lt, y: tp };
				
			lacoor = { x: ev.screenX - dW, y: ev.screenY - dH };
			
			$(dragDiv).css({
			    width: dW - 2 + 'px', height: dH - 2 + 'px', left: curpos.x + 'px',
				top: curpos.y + 'px', zIndex: parseInt(ZIndex,10) + 2, display: ''
			});
			
			for( var i = 0, l = regw.length; i < l; i++ )
			{
			    $( regw[i].document ).bind( 'mousemove', moveHandler );
				$( regw[i].document ).bind( 'mouseup', upHandler );
			}
			
			ev.preventDefault();
			
			if( $.browser.ie ) dragDiv.setCapture();
		});
	};
	
	this.setIndex = function(ev)
	{
		if( self.opt.fixed && $.browser.ie && !$.browser.i7 )
		{
		    $(self.dlg).parent()[0].style.zIndex = parseInt(ZIndex,10) + 1;
			ZIndex = parseInt( $(self.dlg).parent()[0].style.zIndex, 10 );
		}
		else
		{
		    self.dlg.style.zIndex = parseInt(ZIndex,10) + 1;
			ZIndex = parseInt( self.dlg.style.zIndex, 10 );
		}
		
		ev.stopPropagation();
	};
	
	this.SetLoadLeft = function()
	{
	    var loadL = ( $('#lhgdig_content',this.dlg)[0].offsetWidth -
		    $('#lhgdig_load',this.dlg)[0].offsetWidth ) / 2;
			
		$('#lhgdig_load',this.dlg)[0].style.left = loadL + 'px';
	};
	
	this.addBtn = function( id, txt, fn )
	{
	    if( $('#'+id,this.dlg)[0] )
		    $('#'+id,this.dlg).html( '<em>' + txt + '</em>' ).click( fn );
		else
		{
		    var html = '<a id="' + id + '" class="lhgdig_button" href="javascript:void(0)" hidefocus="true"><em>' + txt + '</em></a>',
		
		    btn = $(html,doc).click(fn)[0];
		    $('#lhgdig_bDiv',this.dlg).append( btn );
		}
	};
	
	this.removeBtn = function( id )
	{
	    if( $('#'+id,this.dlg)[0] )
		    $('#'+id,this.dlg).remove();
	};
	
	this.reload = function( win, url )
	{
	    win = win || window;
		self.cancel();
		
		win.location.href = url ? url : win.location.href;
	};
	
	this.ShowCover = function()
	{
	    if( !cover )
		{
			var html = [ '<div style="position:absolute;top:0px;left:0px;',
					'background-color:#fff;">', iframe, '</div>' ].join('');
			
			cover = $(html,doc).css('opacity',0.5).appendTo(doc.body)[0];
		}
		
		$(top).bind( 'resize', reSizeHdl );
		reSizeHdl();
		$(cover).css({ display: '', zIndex: getZIndex() });
	};
	
	this.cancel = function()
	{
		var frm = $('#lhgfrm',self.dlg)[0];
		if( frm )
		{
			if( !self.opt.link )
				$(frm.contentWindow).unbind( 'load' );
			frm.src = getsrc(); frm = null;
		}
		
		self.regWindow = [];
		
		if( self.opt.fixed && $.browser.ie && !$.browser.i7 )
		{
		    $('html',doc).removeClass('lhgdig_ie6_fixed');
			$(self.dlg).parent().remove();
		}
		else
		    $(self.dlg).remove(); self.dlg = null;
		
		if( cover )
		{
		    if( self.opt.parent && self.opt.parent.opt.cover )
			{
			    var Index = self.opt.parent.dlg.style.zIndex;
				cover.style.zIndex = parseInt(Index,10) - 1;
			}
			else
			    cover.style.display = 'none';
		}
	};
	
	this.cleanDialog = function()
	{
		if( self.dlg )
		{
			var frm = $('#lhgfrm',self.dlg)[0];
			if( frm )
			{
				if( !self.opt.link )
					$(frm.contentWindow).unbind( 'load' );
				frm.src = getsrc(); frm = null;
			}
			
			if( self.opt.fixed && $.browser.ie && !$.browser.i7 )
			{
				$('html',doc).removeClass('lhgdig_ie6_fixed');
				$(self.dlg).parent().remove();
			}
			else
				$(self.dlg).remove(); self.dlg = null;
		}
	};
	
	$(window).bind( 'unload', this.cleanDialog );

    if( elem )
	    $(elem).bind( r.event, function(){ self.ShowDialog(); });
};

$(window).bind( 'unload', cleanDiv );

})(jQuery);