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Question

FCKSelection有2个方法： HasAncestorNode和MoveToAncestorNode，他们有什么区别？？
[b]问题补充：[/b]
貌似选中的结点名和MoveToAncestorNode 的参数名相同时
MoveToAncestorNode 会返回null
[b]问题补充：[/b]
var FCKToolbarButton=function (A,B,C,D,E,F,G) {
this.CommandName=A;
this.Label=B;
this.Tooltip=C;
this.Style=D;
this.SourceView=E?true:false;
this.ContextSensitive=F?true:false;
if(G==null)this.IconPath=FCKConfig.SkinPath+'toolbar/'+A.toLowerCase()+'.gif';
else if(typeof(G)=='number')this.IconPath=[FCKConfig.SkinPath+'fck_strip.gif',16,G];
else this.IconPath=G;
};

SourceView和ContextSensitive是干什么的？？

Answer 1

源码你要多看看：
HasAncestorNode只做判断，返回ture和false
[code="js"]
HasAncestorNode = function(A){
var B;
if(FCK.EditorDocument.selection.type=="Control"){
B=this.GetSelectedElement();
}else{
var C=FCK.EditorDocument.selection.createRange();
B=C.parentElement();
};
while (B){
if (B.tagName==A)
return true;
B=B.parentNode;
};
return false;
}

[/code]
MoveToAncestorNode根据提供的节点向上递归定位到指定节点并返回
[code="js"]
FCKSelection.MoveToAncestorNode = function( nodeTagName )
{
var oNode, oRange ;

if ( ! FCK.EditorDocument )
    return null ;

if ( FCK.EditorDocument.selection.type == "Control" )
{
    oRange = FCK.EditorDocument.selection.createRange() ;
    for ( i = 0 ; i < oRange.length ; i++ )
    {
        if (oRange(i).parentNode)
        {
            oNode = oRange(i).parentNode ;
            break ;
        }
    }
}
else
{
    oRange  = FCK.EditorDocument.selection.createRange() ;
    oNode = oRange.parentElement() ;
}

while ( oNode && oNode.nodeName != nodeTagName )
    oNode = oNode.parentNode ;

return oNode ;

}[/code]