Sys.UI 源码结构

Sys.UI.
    |--IContainer
    |--mouseButton
    |     |__prototype leftButton:0,middleButton:1,rightButton:2
    |    
    |--Key
    |     |_prototype backspace:8,tab:9,enter:13,esc:27,space:32,pageUp:33,pageDown:34,end:35,home:36,left:37,up:38,right:39,down:40,del:127
    |
    |--DomEvent
    |    |--DomEvent()
    |    |--prototype
    |    |    |--preventDefault
    |    |    |_stopPropagation
    |    |--addHandler()
    |    |--clearHandlers()
    |    |--removeHandler()
    |-DomElemrnt
    |-Behavior
    |-VisiblityMode
    |_Control

Sys.UI.IContainer

Sys.IContainer=function ()
{
    
};
Sys.IContainer.prototype=
{
    
};
Sys.IContainer.registerInterface("Sys.IContainer");

Sys.UI.MouseButton  Sys.UI.Key

 1Sys.UI.MouseButton=function ()
 2{
 3    throwError.notImplemented()
 4};
 5Sys.UI.MouseButton.prototype=
 6{
 7    leftButton:0,middleButton:1,rightButton:2
 8};
 9Sys.UI.MouseButton.registerEnum("Sys.UI.MouseButton");
10Sys.UI.Key=function ()
11{
12    throwError.notImplemented()
13};
14Sys.UI.Key.prototype=
15{
16    backspace:8,tab:9,enter:13,esc:27,space:32,pageUp:33,pageDown:34,end:35,home:36,left:37,up:38,right:39,down:40,del:127
17};
18Sys.UI.Key.registerEnum("Sys.UI.Key");

Sys.UI.DomEvent

Sys.UI.DomEvent=function (c)
{
    var a=c;
    this.rawEvent=a;
    this.altKey=a.altKey;
    this.button=typeofa.which==="undefined"?a.button:a.button===4?Sys.UI.MouseButton.middleButton:a.button===2?Sys.UI.MouseButton.rightButton:Sys.UI.MouseButton.leftButton;
    if(a.type==="keypress")this.charCode=a.charCode||a.keyCode;
    else if(a.keyCode&&a.keyCode===46)this.keyCode=127;
    else this.keyCode=a.keyCode;
    this.clientX=a.clientX;
    this.clientY=a.clientY;
    this.ctrlKey=a.ctrlKey;
    this.target=a.target?a.target:a.srcElement;
    if(this.target)
    {
        var b=Sys.UI.DomElement.getLocation(this.target);
        this.offsetX=a.offsetX?a.offsetX:window.pageXOffset+a.clientX-b.x;
        this.offsetY=a.offsetY?a.offsetY:window.pageYOffset+a.clientY-b.y
    }this.screenX=a.screenX;
    this.screenY=a.screenY;
    this.shiftKey=a.shiftKey;
    this.type=a.type
};
Sys.UI.DomEvent.prototype=
{
    preventDefault:function ()
    {
        if(this.rawEvent.preventDefault)this.rawEvent.preventDefault();
        else if(window.event)window.event.returnValue=false
    },stopPropagation:function ()
    {
        if(this.rawEvent.stopPropagation)this.rawEvent.stopPropagation();
        else if(window.event)window.event.cancelBubble=true
    }
};
Sys.UI.DomEvent.registerClass("Sys.UI.DomEvent");

var $addHandler=Sys.UI.DomEvent.addHandler=function (a,d,b)
{
    if(a.addEventListener)
    {
        if(!b._browserHandler)b._browserHandler=function (c)
        {
            b.call(a,new Sys.UI.DomEvent(c))
        };
        a.addEventListener(d,b._browserHandler,false)
    }else if(a.attachEvent)
    {
        if(!b._browserHandler)b._browserHandler=function ()
        {
            b.call(a,new Sys.UI.DomEvent(window.event))
        };
        a.attachEvent("on"+d,b._browserHandler)
    }if(!a._events)a._events=
    {
        
    };
    var c=a._events[d];
    if(!c)a._events[d]=c=[];
    c[c.length]=b
},$addHandlers=Sys.UI.DomEvent.addHandlers=function (e,d,c)
{
    for(var b in d)
    {
        var a=d[b];
        if(c)a=Function.createDelegate(c,a);
        $addHandler(e,b,a)
    }
},$clearHandlers=Sys.UI.DomEvent.clearHandlers=function (a)
{
    if(a._events)
    {
        var e=a._events;
        for(var b in e)
        {
            var d=e[b];
            for(var c=d.length-1;c>=0;c--)$removeHandler(a,b,d[c])
        }a._events=null
    }
},$removeHandler=Sys.UI.DomEvent.removeHandler=function (a,b,d)
{
    var c=d._browserHandler;
    if(a.removeEventListener)a.removeEventListener(b,c,false);
    else if(a.detachEvent)a.detachEvent("on"+b,c);
    if(a._events&&a._events[b])Array.remove(a._events[b],d)
};

Sys.UI.Behavior

Sys.UI.DomElement=function ()
{
    
};
Sys.UI.DomElement.registerClass("Sys.UI.DomElement");
Sys.UI.DomElement.addCssClass=function (a,b)
{
    if(!Sys.UI.DomElement.containsCssClass(a,b))if(a.className==="")a.className=b;
    else a.className+=" "+b
};
Sys.UI.DomElement.containsCssClass=function (b,a)
{
    return Array.contains(b.className.split(" "),a)
};
Sys.UI.DomElement.getBounds=function (a)
{
    var b=Sys.UI.DomElement.getLocation(a);
    return 
    {
        x:b.x,y:b.y,width:a.offsetWidth,height:a.offsetHeight
    }
};
var $get=Sys.UI.DomElement.getElementById=function (f,e)
{
    if(!e)return document.getElementById(f);
    if(e.getElementById)return e.getElementById(f);
    var c=[],d=e.childNodes;
    for(var b=0;b<d.length;b++)
    {
        var a=d[b];
        if(a.nodeType==1)c[c.length]=a
    }while(c.length)
    {
        a=c.shift();
        if(a.id==f)return a;
        d=a.childNodes;
        for(b=0;b<d.length;b++)
        {
            a=d[b];
            if(a.nodeType==1)c[c.length]=a
        }
    }return null
};
Sys.UI.DomElement.getLocation=function (d)
{
    var b=0,c=0,a;
    for(a=d;a;a=a.offsetParent)
    {
        if(a.offsetLeft)b+=a.offsetLeft;
        if(a.offsetTop)c+=a.offsetTop
    }return 
    {
        x:b,y:c
    }
};
Sys.UI.DomElement.removeCssClass=function (d,c)
{
    var a=" "+d.className+" ",b=a.indexOf(" "+c+" ");
    if(b>=0)d.className=(a.substr(0,b)+" "+a.substring(b+c.length+1,a.length)).trim()
};
Sys.UI.DomElement.setAccessibilityAttribute=function (a,c,b)
{
    if(a.setAttributeNS)a.setAttributeNS("http://www.w3.org/2005/07/aaa",c,b)
};
Sys.UI.DomElement.setLocation=function (b,c,d)
{
    var a=b.style;
    a.position="absolute";
    a.left=c+"px";
    a.top=d+"px"
};
Sys.UI.DomElement.toggleCssClass=function (b,a)
{
    if(Sys.UI.DomElement.containsCssClass(b,a))Sys.UI.DomElement.removeCssClass(b,a);
    else Sys.UI.DomElement.addCssClass(b,a)
};
Sys.UI.Behavior=function (b)
{
    Sys.UI.Behavior.initializeBase(this);
    this._element=b;
    var a=b._behaviors;
    if(!a)b._behaviors=[this];
    else a[a.length]=this
};
Sys.UI.Behavior.prototype=
{
    _name:null,get_element:function ()
    {
        return this._element
    },get_id:function ()
    {
        var a=Sys.UI.Behavior.callBaseMethod(this,"get_id");
        if(a)return a;
        if(!this._element||!this._element.id)return "";
        return this._element.id+"$"+this.get_name()
    },get_name:function ()
    {
        if(this._name)return this._name;
        var a=Object.getTypeName(this),b=a.lastIndexOf(".");
        if(b!=-1)a=a.substr(b+1);
        if(!this.get_isInitialized())this._name=a;
        return a
    },set_name:function (a)
    {
        this._name=a
    },initialize:function ()
    {
        Sys.UI.Behavior.callBaseMethod(this,"initialize");
        var a=this.get_name();
        if(a)this._element[a]=this
    },dispose:function ()
    {
        Sys.UI.Behavior.callBaseMethod(this,"dispose");
        if(this._element)
        {
            var a=this.get_name();
            if(a)this._element[a]=null;
            Array.remove(this._element._behaviors,this);
            delete this._element
        }
    }
};
Sys.UI.Behavior.registerClass("Sys.UI.Behavior",Sys.Component);

Sys.UI.VisibilityMode

Sys.UI.Behavior.getBehaviorByName=function (b,c)
{
    var a=b[c];
    return a&&Sys.UI.Behavior.isInstanceOfType(a)?a:null
};
Sys.UI.Behavior.getBehaviors=function (a)
{
    if(!a._behaviors)return [];
    return Array.clone(a._behaviors)
};
Sys.UI.Behavior.getBehaviorsByType=function (d,e)
{
    var a=d._behaviors,c=[];
    if(a)for(var b=0,f=a.length;b<f;b++)if(e.isInstanceOfType(a[b]))c[c.length]=a[b];return c
};Sys.UI.VisibilityMode=function ()
{
    throwError.notImplemented()
};
Sys.UI.VisibilityMode.prototype=
{
    hide:0,collapse:1
};
Sys.UI.VisibilityMode.registerEnum("Sys.UI.VisibilityMode");

Sys.UI.Control

Sys.UI.Control=function (a)
{
    Sys.UI.Control.initializeBase(this);
    this._element=a;
    a.control=this;
    this._oldDisplayMode=this._element.style.display;
    if(!this._oldDisplayMode||this._oldDisplayMode=="none")this._oldDisplayMode=""
};
Sys.UI.Control.prototype=
{
    _parent:null,_visibilityMode:Sys.UI.VisibilityMode.hide,get_element:function ()
    {
        return this._element
    },get_id:function ()
    {
        if(!this._element)return "";
        return this._element.id
    },set_id:function ()
    {
        throwError.invalidOperation(Sys.Res.cantSetId)
    },get_parent:function ()
    {
        if(this._parent)return this._parent;
        else 
        {
            var a=this._element.parentNode;
            while(a)
            {
                if(a.control)return a.control;
                a=a.parentNode
            }return null
        }
    },set_parent:function (a)
    {
        this._parent=a
    },get_role:function ()
    {
        return ""
    },get_visibilityMode:function ()
    {
        return this._visibilityMode
    },set_visibilityMode:function (a)
    {
        if(this._visibilityMode!==a)
        {
            this._visibilityMode=a;
            if(this.get_visible()===false)if(this._visibilityMode===Sys.UI.VisibilityMode.hide)this._element.style.display=this._oldDisplayMode;
            else this._element.style.display="none"
        }this._visibilityMode=a
    },get_visible:function ()
    {
        return this._element.style.visibility!="hidden"
    },set_visible:function (a)
    {
        if(a!=this.get_visible())
        {
            this._element.style.visibility=a?"visible":"hidden";
            if(a||this._visibilityMode===Sys.UI.VisibilityMode.hide)this._element.style.display=this._oldDisplayMode;
            else this._element.style.display="none"
        }
    },addCssClass:function (a)
    {
        Sys.UI.DomElement.addCssClass(this._element,a)
    },dispose:function ()
    {
        Sys.UI.Control.callBaseMethod(this,"dispose");
        if(this._element)
        {
            this._element.control=undefined;
            delete this._element
        }
    },initialize:function ()
    {
        Sys.UI.Control.callBaseMethod(this,"initialize");
        var a=this._element;
        if(a.setAttributeNS)a.setAttributeNS("http://www.w3.org/TR/xhtml2","role",this.get_role())
    },onBubbleEvent:function ()
    {
        return false
    },raiseBubbleEvent:function (b,c)
    {
        var a=this.get_parent();
        while(a)
        {
            if(a.onBubbleEvent(b,c))return ;
            a=a.get_parent()
        }
    },removeCssClass:function (a)
    {
        Sys.UI.DomElement.removeCssClass(this._element,a)
    },toggleCssClass:function (a)
    {
        Sys.UI.DomElement.toggleCssClass(this._element,a)
    }
};
Sys.UI.Control.registerClass("Sys.UI.Control",Sys.Component)