deeptree.js

java jsp教程

{
	if( null == objLI_Current ) return;
	if( null == objLI_Current ) objLI_Current = GetHtmlElement( element , "div" );
	
	var objLI_New;
	objLI_New = GetPreviousSibling(objLI_Current);

	if (objLI_New != null)
	{
		SelectNode(objLI_New, false, true);
	}
	else
	{
		objLI_New = GetParent(objLI_Current);
		if (objLI_New != null)
		{
			SelectNode(objLI_New, false, true);
		}
	}
}

//-----------------------------------------------
// MoveLeft()
//-----------------------------------------------

function MoveLeft()
{
	var objLI_New;
	
	if( null == objLI_Current ) objLI_Current = GetHtmlElement( element , "div" );
	
	if (objLI_Current.state == "shown")
	{
		CollapseNode(objLI_Current);
	}
	else
	{
		objLI_New = GetParent(objLI_Current);
		if (objLI_New != null)
		{
			SelectNode(objLI_New, false, true);
		}
	}
}

//-----------------------------------------------
// MoveUp()
//-----------------------------------------------

function MoveUp()
{
	var objLI_New;
	
	if( null == objLI_Current ) objLI_Current = GetHtmlElement( element , "div" );
	
	objLI_New = GetPreviousSibling(objLI_Current);
	
	if (objLI_New != null)
	{
		while (objLI_New.state == "shown")
		{
			objLI_New = GetLastChild(objLI_New);
		}
		SelectNode(objLI_New, false, true);
	}
	else
	{
		objLI_New = GetParent(objLI_Current);
	    if (objLI_New != null)
		{
			SelectNode(objLI_New, false, true);
		}
	}
}

//-----------------------------------------------
// MoveRight()
//-----------------------------------------------

function MoveRight()
{
	var objLI_New;
	if( null == objLI_Current ) objLI_Current = GetHtmlElement( element , "div" );
	if( objLI_Current.state == "shown")
	{
		objLI_New = GetFirstChild(objLI_Current);
		if (objLI_New != null)
		{
			SelectNode(objLI_New, false, true);
		}
	}
	else if( objLI_Current.type != "leaf" )
	{
		ExpandNode(objLI_Current);
	}
}

//-----------------------------------------------
// MoveDown()
//-----------------------------------------------

function MoveDown()
{
	var objLI_New;
	var objLI_Temp;
	
	if( null == objLI_Current ) objLI_Current = GetHtmlElement( element , "div" );
	
	if (objLI_Current.state == "shown")
	{
		objLI_New = GetFirstChild(objLI_Current);
		SelectNode(objLI_New, false, true);
	}
	else
	{
		objLI_Temp = objLI_Current;
		objLI_New = GetNextSibling(objLI_Temp);

		while (objLI_New == null)
		{
			objLI_Temp = GetParent(objLI_Temp);

			if (objLI_Temp == null)
			{
				objLI_New = objLI_Current;
			}
			else
			{
				objLI_New = GetNextSibling(objLI_Temp);
			}
		}
		SelectNode(objLI_New, false, true);
	}
}

//-----------------------------------------------
// Sync(xml)
//-----------------------------------------------

function SyncAsync( oSync )
{
    if( null != oSync.oLi )
    {
        oSync.oLastLi = oSync.oLi;
    }
    if( null == oSync.oContextList ) return false;
    var oElementId = oSync.oContextList.item( oSync.iCurrentIdx ).getAttribute( "id" );
    var oEl = window.document.all( oElementId );
    if( !oSync.bBadIds && null != oEl && "object" == typeof( oEl ) )
    {

        oSync.oLi = oEl.parentElement;
    }
    else
    {
        oSync.bBadIds = true;
        var sTitle = oSync.oContextList.item( oSync.iCurrentIdx ).getAttribute( "label" );
        oEl = GetNodeFromTitle( sTitle , oSync.oLastLi );
        if( null != oEl )
        {
            oSync.oLi = oEl.parentElement;
        }
        
    }
    oSync.iCurrentIdx++;
    if( oSync.iCurrentIdx == oSync.oContextList.length )
    {
        
        ExpandNode( oSync.oLi , null );
        SelectNode( oSync.oLi , true, true );
        
    }
    else
    {
        ExpandNode( oSync.oLi , oSync );
    }
    if( oSync.oLi == null ) return false;
    return true;
}

function SyncObject( oContextList )
{
    this.oContextList = oContextList;
    this.oLi = null;
    this.oLastLi = null;
    this.bBadIds = false;
    this.iCurrentIdx = 0;
}

function Sync( sNodeId )
{
    try
    {
        if( top.content.document.body.readyState != "complete" )
        {
            return;
        }
        var oContextXml = top.content.xmlPageContext;
        oContextXml = oContextXml.selectNodes( "//item[@id]" );
        var oSync = new SyncObject( oContextXml );
        if( !SyncAsync( oSync ) )
        {
            m_bSyncFailed = true;
        }

    }
    catch(e)
    {
		m_bSyncFailed = true;
    }
}

//-------------------------------------------------------------------------------------------------
//                                     PRIVATE METHODS
//-------------------------------------------------------------------------------------------------

function GetNodeFromTitle( sTitle , oParentEl )
{
   
    var oList = null;
    var oNode = null;
    var oTmpNode = null;
    if( oParentEl == null )
    {
        oList = element.children;
    }
    else
    {
        var oList = GetChildren( oParentEl );
    }
    
    for( var i = 0; i < oList.length; i++ )
    {
        oTmpNode = GetHtmlElement( oList[i] , "SPAN" , "label" )
        if( null != oTmpNode && "object" == typeof( oTmpNode ) && oTmpNode.title == sTitle ) 
        {
            oNode = oTmpNode;
            break;
        }
    }
    return oNode;
}

//-----------------------------------------------
// ToggleNode(objLI)
//-----------------------------------------------

function ToggleNode(objLI)
{
	if (objLI.type == "parent")
	{
		if (objLI.state == "shown")
		{
			//如果这个结点下的内容已经被加载，就不用再加载一次了。
			CollapseNode(objLI);
		}
		else
		{
			ExpandNode(objLI);
		}
	}
}

//-----------------------------------------------
// CollapseNode(objLI)
//-----------------------------------------------

function CollapseNode(objLI)
{
	var i = 0;
	var objUL;
	var objIMG;

	objUL = GetHtmlElement(objLI,"DIV","container");

	if (objUL != null)
	{
		objIMG = GetHtmlElement(objLI,"SPAN","img");
		if (objUL != null)
		{
			objLI.state = "hidden";
			objUL.className = "hide";
			objIMG.innerHTML = "<span class='clsCollapse'>+</span>";

			if (IsChild(objLI_Current, objLI) == true)
			{
				SelectNode(objLI, false, false);
			}
		}
	}
}

//-----------------------------------------------
// ExpandNode(objLI)
// 加载这个节点，需要读取xml 文件
//-----------------------------------------------

function ExpandNode( objLI , oSync )
{
	var i = 0;
	var objUL;
	var objIMG;
	var objSPAN;

	objUL = GetHtmlElement(objLI,"DIV","container");
	
	if (objUL != null)
	{
		objIMG = GetHtmlElement(objLI,"SPAN","img");

		if (objIMG != null)
		{
			objSPAN = GetHtmlElement(objLI,"SPAN","label");

			objUL.className = "shown";
			objIMG.innerHTML = "<span class='clsExpand'>-</span>";
			//objIMG.src = "/library/shared/deeptree/graphics/expand.gif";
			objLI.state = "shown";
			return LoadChildren( objLI , oSync );
		}
	}
}

//-----------------------------------------------
// SelectNode(objLI, bSuppressLink)
//-----------------------------------------------

function SelectNode( objLI, bSupressLink, bForceIntoView )
{
    var objA;
    var objSPAN;
	if( null == objLI ) objLI = GetHtmlElement( element , "div" );
	if( objLI.type == "none" )
	{
		objLI_Parent = GetParent( objLI );
		objLI_Next = GetNextSibling( objLI_Parent );
	}
	
    if( bSupressLink != true ) 
    {
        //这个结点需要连接到的地方定义
        LoadNodeContent(objLI);
    }
    //加亮结点
    HighlightNode(objLI);
    ExpandAncestors( objLI );
    ScrollIntoView( objLI, bForceIntoView );
    UpdateMessages( objLI );

    try
    {
		if( "object" == typeof( top.contentbar ) && "object" == typeof( top.contentbar.document.all("showtoc") ) )
		{
			//top.contentbar.document.all("showtoc").style.display = "none";
		}
	}
	catch(e)
	{
	}
	

}


function UpdateMessages( objLI )
{
    objSPAN = GetHtmlElement(objLI,"SPAN","label");
    if( null != objSPAN )
    {
        window.defaultStatus = objSPAN.title;
 //       top.document.title = objSPAN.title;
    }
}

// 当前焦点滚动到中间位置。
function ScrollIntoView( objLI, bScroll )
{
    //var iY = window.document.body.scrollTop;
    //var iX = window.document.body.scrollLeft;
    
    //var bScrollY = ( objLI.offsetTop < iY	|| objLI.offsetTop + 19 > iY + window.document.body.clientHeight );
    //var bScrollX = false;
    //( objLI.offsetLeft < iX	|| objLI.offsetLeft + objLI.offsetWidth/2 > iX + window.document.body.clientWidth );
    
    if( bScroll )
    {
		//var iY = !( bScrollY || bScroll ) ? iY : 
		//var iX = !( bScrollX || bScroll ) ? iX : 
    	var iY = objLI.offsetTop - window.document.body.clientHeight/2;
    	var iX = objLI.offsetLeft - 15;
        window.scrollTo( iX , iY );
	}
	
    return;
}


function ExpandAncestors( objLI )
{
    while( objLI = GetParent( objLI ) )
    {
        if( objLI.state != "shown" ) ExpandNode( objLI );
    }
}

//加亮当前选择的节点
function HighlightNode(objLI)
{
	var i = 0;
    var objSPAN;
	var objSPAN_Current;
	objSPAN = GetHtmlElement(objLI,"SPAN","label");
	if (objSPAN != null)
	{
		if (objSPAN.classType != "clsUnavailable")
		{
			
			objSPAN.className = "clsCurrentHasFocus";
			objSPAN.classType = "clsCurrentHasFocus";
			
		    if (objLI != objLI_Current)
			{
				if (objLI_Current != "")
				{
					objSPAN_Current = GetHtmlElement(objLI_Current,"SPAN","label");
		            if (objSPAN_Current != null)
					{
						objSPAN_Current.className = "";
						objSPAN_Current.classType = "";
					}
				}
			}
		}
		objLI_Current = objLI;
	}
}

//-----------------------------------------------
// LoadNodeContent(objLI)
//-----------------------------------------------

function LoadNodeContent(objLI)
{
    var objSPAN;
    var objA;

    objSPAN = GetHtmlElement(objLI,"SPAN","label");

    if (objSPAN != null)
    {
        objA = GetHtmlElement(objSPAN,"A")
        if (objA != null)
        {

            var sTmpArray = new Array();