/**
 *  jQuery Windows Engine Plugin
 *  @requires jQuery v1.2.6 or greater
 *  http://hernan.amiune.com/labs
 *
 *  Copyright(c)  Hernan Amiune (hernan.amiune.com)
 *  Licensed under MIT license:
 *  http://www.opensource.org/licenses/mit-license.php
 * 
 *  Version: 1.1
 */
 

var jqWindowsEngineZIndex = 100; 

jQuery.extend({

newWindow: function(options){

    var lastMouseX = 0;
    var lastMouseY = 0;

    var defaults = {
        id: "",
        title: "",
        width: 300,
        height: 200,
        posx: 50,
        posy: 50,
        content: "",
		onDragBegin: null,
		onDragEnd: null,
		onResizeBegin: null,
		onResizeEnd: null,
		onWindowClose: null,
		onAjaxContentLoaded: null,
        statusBar: true,
		minimizeButton: true,
		maximizeButton: true,
		closeButton: true,
		draggable: true,
		resizeable: true
    };
  
    var options = $.extend(defaults, options);
    
	var idAttr = "";
	if(options.id != "")idAttr = 'id="'+options.id+'"';
    if(options.id != "")idAttr = 'id="'+options.id+'"';
    $windowContainer = $('<div '+idAttr+' class="window-container"></div>');
    $titleBar = $('<div class="window-titleBar"></div>');        
    $titleBar.append('<div class="window-titleBar-leftCorner"></div>');
    $titleBarContent = $('<div class="window-titleBar-content">'+options.title+'</div>');
    $titleBar.append($titleBarContent);
    $titleBar.append('<div class="window-titleBar-rightCorner"></div>');
    $windowMinimizeButton = $('<div class="window-minimizeButton"></div>');
	$windowMaximizeButton = $('<div class="window-maximizeButton"></div>');
	$windowCloseButton = $('<div class="window-closeButton"></div>');
    $windowContent = $('<div class="window-content"></div>');
    $windowStatusBar = $('<div class="window-statusBar"></div>');
	$windowResizeIcon = $('<div class="window-resizeIcon"></div>');

	if(options.minimizeButton) $titleBar.append($windowMinimizeButton);
	if(options.maximizeButton) $titleBar.append($windowMaximizeButton);
	if(options.closeButton) $titleBar.append($windowCloseButton);
	if(options.resizeable) $windowStatusBar.append($windowResizeIcon);
	$windowContainer.append($titleBar);
    $windowContent.append(options.content);
	$windowContainer.append($windowContent);
	if(options.statusBar) $windowContainer.append($windowStatusBar);
	
	var setFocus = function($obj){
	    $obj.css("z-index",jqWindowsEngineZIndex++);
	}
	
	var resize = function($obj, width, height){
		width = parseInt(width);
		height = parseInt(height);
		$obj.data("lastWidth",width).data("lastHeight",height);
		width = width+"px";
		height = height+"px";
		$obj.css("width", width).css("height", height);	   
	}
	
	var move = function($obj, x, y){
		x = parseInt(x);
		y = parseInt(y);
		$obj.data("lastX",x).data("lastY",y);
        x = x+"px";
		y = y+"px";		
		$obj.css("left", x).css("top", y);
	}

	var dragging = function(e, $obj){
	    if(options.draggable){
            e = e ? e : window.event;
            var newx = parseInt($obj.css("left")) + (e.clientX - lastMouseX);
            var newy = parseInt($obj.css("top")) + (e.clientY - lastMouseY);
            lastMouseX = e.clientX;
            lastMouseY = e.clientY;
          
            move($obj,newx,newy);
		}
	};
	
	var resizing = function(e, $obj){
        e = e ? e : window.event;
        var w = parseInt($obj.css("width"));
        var h = parseInt($obj.css("height"));
        w = w<100 ? 100 : w;
        h = h<50 ? 50 : h;
        var neww = w + (e.clientX - lastMouseX);
        var newh = h + (e.clientY - lastMouseY);
        lastMouseX = e.clientX;
        lastMouseY = e.clientY;

        resize($obj, neww, newh);
	};
	
	$titleBarContent.bind('mousedown', function(e){
	    $obj = $(e.target).parent().parent();
		setFocus($obj);
		
	    if($obj.data("state") != "maximized"){
	        e = e ? e : window.event;
		    lastMouseX = e.clientX;
		    lastMouseY = e.clientY;
		    
		    $(document).bind('mousemove', function(e){
			    dragging(e, $obj);
		    });
		    
			
		    $(document).bind('mouseup', function(e){
				if(options.onDragEnd != null)options.onDragEnd();
				$(document).unbind('mousemove');
				$(document).unbind('mouseup');
		    });
			
			if(options.onDragBegin != null)options.onDragBegin();
	    }
    });
	
	$windowResizeIcon.bind('mousedown', function(e){
		$obj = $(e.target).parent().parent();
		setFocus($obj);
		
		if($obj.data("state") === "normal"){
			e = e ? e : window.event;
			lastMouseX = e.clientX;
			lastMouseY = e.clientY;

			$(document).bind('mousemove', function(e){
				resizing(e, $obj);
			});

			$(document).bind('mouseup', function(e){
				if(options.onResizeEnd != null)options.onResizeEnd();
				$(document).unbind('mousemove');
				$(document).unbind('mouseup');
			});
			
			if(options.onResizeBegin != null)options.onResizeBegin();
		}
    });
	
	$windowMinimizeButton.bind('click', function(e){
	    $obj = $(e.target).parent().parent();
		setFocus($obj);
		if($obj.data("state") === "minimized"){
            $obj.data("state", "normal");
            $obj.css("height", $obj.data("lastHeight"));
            $obj.find(".window-content").slideToggle("slow");
		}
        else if($obj.data("state") === "normal"){
            $obj.data("state", "minimized");
            $obj.find(".window-content").slideToggle("slow", function(){$obj.css("height", 0);});
        }
        else{
            $obj.find(".window-maximizeButton").click();
        }
    });
	
	$windowMaximizeButton.bind('click', function(e){
        $obj = $(e.target).parent().parent();
        setFocus($obj);
        if($obj.data("state") === "minimized"){
            $obj.find(".window-minimizeButton").click();
        }
        else if($obj.data("state") === "normal"){
            $obj.animate({
                top: "5px",
                left: "5px",
                width: $(window).width()-15,
                height: $(window).height()-45
            },"slow");
            $obj.data("state","maximized")
        }
        else if($obj.data("state") === "maximized"){
            $obj.animate({
                top: $obj.data("lastY"),
                left: $obj.data("lastX"),
                width: $obj.data("lastWidth"),
                height: $obj.data("lastHeight")
            },"slow");
            $obj.data("state","normal")
        }
	  
    });
	
	$windowCloseButton.bind('click', function(e){
	  var $window = $(e.target).parent().parent();
      $window.fadeOut(function(){ $window.remove(); });
	  if(options.onWindowClose != null)options.onWindowClose();
    });
	
	$windowContent.click(function(e){
      setFocus($(e.target).parent());
    });
	$windowStatusBar.click(function(e){
      setFocus($(e.target).parent());
    });
	
	move($windowContainer,options.posx,options.posy);
	resize($windowContainer,options.width,options.height);
	$windowContainer.data("state","normal");

	$windowContainer.css("display","none");

    $('body').append($windowContainer);
     
    $window = $windowContainer;
    if(!options.draggable) $window.children(".window-titleBar").css("cursor","default");
    setFocus($window);
    $window.fadeIn();

  
},

updateWindowContent: function(id, newContent){
    $("#" + id + " .window-content").html(newContent);
},

updateWindowContentWithAjax: function(id, url, cache){
    cache = cache===undefined ? true : false;
    $.ajax({
        url: url,
        cache: cache,
        dataType: "html",
        success: function(data) {
            $("#" + id + " .window-content").html(data);
        }
    });
},

moveWindow: function(id, x, y){
    $obj = $("#" + id);
    x = parseInt(x);
    y = parseInt(y);
    $obj.data("lastX",x).data("lastY",y);
    x = x+"px";
    y = y+"px";		
    $obj.css("left", x).css("top", y);
},

resizeWindow: function(id, width, height){
    $obj = $("#" + id);
    width = parseInt(width);
    height = parseInt(height);
    $obj.data("lastWidth",width).data("lastHeight",height);
    width = width+"px";
    height = height+"px";
    $obj.css("width", width).css("height", height);	
},

minimizeWindow: function(id){
    $("#" + id + " .window-minimizeButton").click();
},

maximizeWindow: function(id){
    $("#" + id + " .window-maximizeButton").click();
},

showWindow: function(id){
    $("#" + id + " .window-closeButton").fadeIn();
},

hideWindow: function(id){
    $("#" + id + " .window-closeButton").fadeOut();
},

closeWindow: function(id){
    $("#" + id + " .window-closeButton").click();
},

closeAllWindows: function(){
    $(".window-container .window-closeButton").click();
}

});