<!----------------------------------------------------------------------
// Copyright (c) 2000-2003 Microsoft Corporation. All Rights Reserved.
//---------------------------------------------------------------------->
<public:component tagname=treeview literalcontent=true>
<public:attach event=oncontentready onevent="oncontentready()" />
<public:attach event=ondocumentready onevent="ondocumentready()" />
<public:attach event="onscroll" onevent="onScroll()" />
<public:event name="onexpand" id="_tvevtExpand" />
<public:event name="oncollapse" id="_tvevtCollapse" />
<public:event name="onselectedindexchange" id="_tvevtSelect" />
<public:event name="oncheck" id="_tvevtCheck" />
<public:event name="onfirequeuedevents" id="_tvevtFireQueuedEvents" />
<public:event name="onnodebound" id="_tvevtNodeBound" />
<public:event name="onnodetypesbound" id="_tvevtNodeTypesBound" />
<public:event name="onhover" id="_tvevtHover" />
<public:event name="onunhover" id="_tvevtUnhover" />
<public:property name="clickedNodeIndex" GET="getClickedNodeIndex" />
<public:property name="defaultStyle" id="_tvpropDefaultStyle" GET="getDefaultStyle" PUT="setDefaultStyle" />
<public:property name="hoverStyle" id="_tvpropHoverStyle" GET="getHoverStyle" PUT="setHoverStyle" />
<public:property name="selectedStyle" id="_tvpropSelectedStyle" GET="getSelectedStyle" PUT="setSelectedStyle" />
<public:property name="childType" id="_tvpropChildType" GET="getChildType" PUT="setChildType" />
<public:property name="imageUrl" id="_tvpropImageUrl" GET="getImageUrl" PUT="setImageUrl" />
<public:property name="expandedImageUrl" id="_tvpropExpandedImageUrl" GET="getExpandedImageUrl" PUT="setExpandedImageUrl" />
<public:property name="selectedImageUrl" id="_tvpropSelectedImageUrl" GET="getSelectedImageUrl" PUT="setSelectedImageUrl" />
<public:property name="target" id="_tvpropTarget" GET="getTarget" PUT="setTarget" />
<public:property name="treeNodeSrc" id="_tvpropTreeNodeSrc" GET="getTreeNodeSrc" PUT="setTreeNodeSrc" />
<public:property name="treeNodeXsltSrc" id="_tvpropTreeNodeXsltSrc" GET="getTreeNodeXsltSrc" PUT="setTreeNodeXsltSrc" />
<public:property name="selectExpands" id="_tvpropSelectExpands" GET="getSelectExpands" PUT="setSelectExpands" />
<public:property name="expandLevel" id="_tvpropExpandLevel" GET="getExpandLevel" PUT="setExpandLevel" />
<public:property name="autoSelect" id="_tvpropAutoSelect" GET="getAutoSelect" PUT="setAutoSelect" />
<public:property name="treeNodeTypeSrc" id="_tvpropTreeNodeTypeSrc" GET="getTreeNodeTypeSrc" PUT="setTreeNodeTypeSrc" />
<public:property name="showLines" id="_tvpropShowLines" GET="getShowLines" PUT="setShowLines" />
<public:property name="showPlus" id="_tvpropShowPlus" GET="getShowPlus" PUT="setShowPlus" />
<public:property name="showToolTip" id="_tvpropShowToolTip" GET="getShowToolTip" PUT="setShowToolTip" />
<public:property name="indent" id="_tvpropIndent" GET="getIndent" PUT="setIndent" />
<public:property name="selectedNodeIndex" id="_tvpropSelectedNodeIndex" GET="getSelectedNodeIndex" PUT="setSelectedNodeIndex" />
<public:property name="systemImagesPath" id="_tvpropSystemImagesPath" GET="getSystemImagesPath" PUT="setSystemImagesPath" />
<public:method name="queueEvent" />
<public:method name="getTreeNode" />
<public:method name="addAt" />
<public:method name="createTreeNode" />
<public:method name="getTreeNodeType" />
<public:method name="createTreeNodeType" />
<public:method name="addTreeNodeType" />
<public:method name="add" />
<public:method name="databind" />
<public:method name="databindTypes" />
<public:method name="getChildren" />
</public:component>
<script language=javascript>
var contentNode;
var treeviewNode;
var g_typesNode;
var g_styles;
var g_event;
var g_timer = -1;
var g_nodeClicked = null;
var g_strQueuedEvents = "";
var g_bInteractive = false;
var g_numStop = 0;
var g_selectedNodeBeforeDelay = "";
var g_bFocus = false;
var g_bCreated = false;
var g_typeIsland = null;
var g_bNodesReady = false;
var g_bTypesReady = false;
var g_bMouseDown = false;
var g_pendingBinds = new Array(0);
var g_pendingSyncBinds = new Array(0);
var g_bindTimer = -1;
var g_bLock = false;
var g_bInTypesBoundEvent = false;
var L_strMSXMLError_Text = "Error creating MSXML object. Please make sure the MSXML library is installed on your computer.";
var L_strRetrievingNodes_Text = "Retrieving nodes...";
var L_strXMLError_Text = "Error loading XML file %s";
var L_strInvalidXML_Text = "Invalid XML in %s";
var L_strXSLTError_Text = " or unsupported XSLT in %s";
var L_fontSize_Text = "10pt";
var L_fontName_Text = "Times";
var L_strToolTip_Text = "Use +/- to expand/collapse";
// properties
var prop_defaultStyle = null;
var prop_hoverStyle = null;
var prop_selectedStyle = null;
var prop_childType = null;
var prop_imageUrl = null;
var prop_expandedImageUrl = null;
var prop_selectedImageUrl = null;
var prop_target = null;
var prop_treeNodeSrc = null;
var prop_treeNodeXsltSrc = null;
var prop_selectExpands = null;
var prop_expandLevel = -1;
var prop_autoSelect = false;
var prop_treeNodeTypeSrc = null;
var prop_showLines = true;
var prop_showPlus = true;
var prop_showToolTip = true;
var prop_indent = 19;
var prop_selectedNodeIndex = null;
var prop_systemImagesPath = null;
//
// QueueEvent()
//
// Queue an event for later posting to the server, when the
// _tvevtFireQueuedEvents event fires.
//
function queueEvent(strEvent, strParams)
{
if (g_strQueuedEvents.length > 0)
g_strQueuedEvents += ";";
g_strQueuedEvents += (strEvent + "," + strParams);
setHiddenHelperValue();
}
function getQueuedEvents()
{
return g_strQueuedEvents;
}
function fireQueuedEvents()
{
if (g_strQueuedEvents != "")
{
if (getAttribute("onfirequeuedevents") != null)
{
if (g_timer != -1)
{
// force pending autoSelect to trigger
window.clearTimeout(g_timer);
autoSelect();
}
else
{
g_bInteractive = false;
g_numStop = 0;
_tvevtFireQueuedEvents.fire();
}
}
}
}
//
// SetAnchorClass()
//
// Set the cssText property in addition to the className, since just setting className
// doesn't do the trick.
//
// node: Anchor to which we're applying a new class
// name: the class to apply
// DefaultStyle: Apply DefaultStyle
// HoverStyle: Apply DefaultStyle, then HoverStyle
// SelectedStyle: Apply DefaultStyle, then SelectedStyle
//
function SetAnchorClass(node, name)
{
var strStyle = "";
var lname = name.toLowerCase();
// Everything is based on DefaultStyle
strStyle += cascadeStyle(getParentTreeNode(node), "defaultstyle");
if (lname != "defaultstyle")
{
var str = cascadeStyle(getParentTreeNode(node), lname);
if (str != null)
{
strStyle += ";" + str;
}
}
node.style.cssText = strStyle;
if (lname == "hoverstyle" && g_bFocus == false)
blurFilter(node);
node.className = lname;
}
//
// getParentTreeNode()
//
// Walk up the display tree (NOT the TREENODE tree) until we find an element with
// a treenode expando.
//
function getParentTreeNode(node)
{
var el = node;
while (el != null && el.getAttribute("treenode") == null)
el = el.parentElement;
return el.getAttribute("treenode");
}
//
// HoverNode()
//
// Apply hover effect to given text node
//
// textnode: textnode (id: _tntext) to apply hover to, or treenode
//
function HoverNode(textnode)
{
var node;
if (textnode.tagName.toLowerCase() == "treenode")
node = textnode.subtree.all.item("_tntext", 0);
else
node = textnode;
var nodeIndex = getNodeIndex(getParentTreeNode(node));
if (node.className == "defaultstyle")
{
SetAnchorClass(node, "hoverstyle");
HoverNodeIndex = nodeIndex;
}
else if (node.className != "hoverstyle")
HoverNodeIndex = "";
e = element.document.createEventObject();
e.treeNodeIndex = nodeIndex;
_tvevtHover.fire(e);
setHiddenHelperValue();
}
//
// UnhoverNode()
//
// Remove hover effect from given text node
//
// textnode: textnode (id: _tntext) to remove hover from, or treenode
//
function UnhoverNode(textnode)
{
if (textnode != null)
{
var node;
if (textnode.tagName.toLowerCase() == "treenode")
node = textnode.subtree.all.item("_tntext", 0);
else
node = textnode;
if (node.className == "hoverstyle")
{
SetAnchorClass(node, "defaultstyle");
}
e = element.document.createEventObject(event);
if (HoverNodeIndex == "")
e.treeNodeIndex = getNodeIndex(getParentTreeNode(node))
else
e.treeNodeIndex = HoverNodeIndex;
_tvevtUnhover.fire(e);
HoverNodeIndex = "";
setHiddenHelperValue();
}
}
// mOver()
//
// onmouseover handler for the anchor of a treenode
//
function mOver()
{
if (g_bInteractive == true)
{
var oItem = this.all.item("_tntext", 0);
if (HoverNodeIndex.length > 0)
UnhoverNode(getNodeFromIndex(HoverNodeIndex));
HoverNode(oItem);
}
}
//
// mOut()
//
// onmouseout handler for the anchor of a treenode
//
function mOut()
{
if (g_bInteractive == true)
{
var node = this.parentElement.treenode;
var nodeIndex = getNodeIndex(node)
if (nodeIndex == HoverNodeIndex)
{
UnhoverNode(node);
window.status = window.defaultStatus;
}
else if (nodeIndex == selectedNodeIndex)
{
e = element.document.createEventObject(event);
e.treeNodeIndex = nodeIndex;
_tvevtUnhover.fire(e);
}
}
}
//
// onkeydown
//
function onkeydown()
{
if (!g_bInteractive)
return;
if (event.altKey == true)
return;
var oldNode;
var hoverNode = null;
if (HoverNodeIndex.length > 0)
{
oldNode = getNodeFromIndex(HoverNodeIndex);
hoverNode = oldNode;
}
else
oldNode = getNodeFromIndex(selectedNodeIndex);
switch (event.keyCode)
{
case 187: // keyboard +/=
if (event.shiftKey != true)
break;
// else fall through
case 107: // keypad +
if (oldNode.getAttribute("expanded") != true)
{
doNodePlusMinusClick(oldNode);
fireQueuedEvents();
}
event.returnValue = false;
break;
case 189: // keyboard -/_
if (event.shiftKey == true)
break;
// else fall through
case 109: // keypad -
if (oldNode.getAttribute("expanded") == true)
{
doNodePlusMinusClick(oldNode);
fireQueuedEvents();
}
event.returnValue = false;
break;
case 39: // right arrow
event.returnValue = false;
if (oldNode.children.tags("treenode").length == 0)
{
var exp = getNodeAttribute(oldNode, "expandable");
if (exp == null && oldNode.getAttribute("TreeNodeSrc") != null)
exp = "checkOnce";
if (oldNode.getAttribute("expanded") == true || !(exp == "always" || (exp == "checkOnce" && oldNode.getAttribute("checkedExpandable") != true)))
break;
}
if (oldNode.getAttribute("expanded") != true)
{
doNodePlusMinusClick(oldNode);
updateStatus(oldNode);
fireQueuedEvents();
break;
}
// fall through
case 40: // down arrow
var node = getNextVisibleNode(oldNode);
if (node != null)
{
if (element.getAttribute("autoselect") == true)
{
selectNode(node, true);
updateStatus(node);
UnhoverNode(hoverNode);
}
else
{
UnhoverNode(oldNode);
HoverNode(node);
changeFocus(node, oldNode);
updateStatus(node);
}
scrollTree(node);
}
event.returnValue = false;
break;
case 37: // left arrow
if (oldNode.getAttribute("expanded") == true)
{
doNodePlusMinusClick(oldNode);
fireQueuedEvents();
}
else
{
// jump the hover up to the parent node
var node = oldNode.parentElement;
while (node.tagName.substr(0,4).toLowerCase() != "tree")
node = node.parentElement;
if (node.tagName.toLowerCase() == "treenode")
{
if (element.getAttribute("autoselect") == true)
{
selectNode(node, true);
updateStatus(node);
UnhoverNode(hoverNode);
}
else
{
UnhoverNode(oldNode);
HoverNode(node);
changeFocus(node, oldNode);
updateStatus(node);
}
scrollTree(node);
}
}
event.returnValue = false;
break;
case 38: // up arrow
var node = getPreviousVisibleNode(oldNode);
if (node != null)
{
if (element.getAttribute("autoselect") == true)
{
selectNode(node, true);
updateStatus(node);
UnhoverNode(hoverNode);
}
else
{
UnhoverNode(oldNode);
HoverNode(node);
changeFocus(node, oldNode);
updateStatus(node);
}
scrollTree(node);
}
event.returnValue = false;
break;
case 32: // spacebar
var cb = oldNode.subtree.all.item("_cb", 0);
if (cb != null)
{
cb.setAttribute("checked", !cb.getAttribute("checked"), 0);
doCheckboxClick(oldNode);
fireQueuedEvents();
}
event.returnValue = false;
break;
case 13: // enter key
doNodeClick(oldNode)
if (!navigateNode(oldNode))
{
if (element.getAttribute("selectExpands") == true)
doNodePlusMinusClick(oldNode);
fireQueuedEvents();
}
event.returnValue = false;
break;
}
}
//
// changeFocus()
//
function changeFocus(node, oldNode)
{
var accessnode = node.subtree.all.item("_tnaccess", 0);
accessnode.tabindex = 1;
accessnode.focus();
accessnode = oldNode.subtree.all.item("_tnaccess", 0);
accessnode.tabindex = -1;
}
//
// updateStatus()
//
function updateStatus(node)
{
var href = node.getAttribute("navigateurl");
if (href != null)
window.status = href;
else
window.status = window.defaultStatus;
}
//
// onstop
//
function onstop()
{
g_numStop++;
if (g_numStop >= 2)
{
g_bInteractive = true;
}
for (var i = 0; i < g_pendingBinds.length; i++)
{
if (g_pendingBinds[i] != null && g_pendingBinds[i].el != null)
g_pendingBinds[i].el._bound = null;
}
}
//
// onfocus
//
function onfocus()
{
if (!g_bFocus)
{
dofocus();
}
}
//
// dofocus
//
function dofocus()
{
var node = null;
g_bFocus = true; // sometimes we just call dofocus() without going through onfocus()
try
{
node = getNodeFromIndex(selectedNodeIndex);
}
catch (e)
{
}
if (node != null)
{
var oItem = node.subtree.all.item("_tnaccess", 0);
if (oItem != null)
{
if (g_bInteractive)
{
focusFilter(oItem);
oItem.tabIndex = 1;
if (!g_bMouseDown) // don't scroll the window when selecting a new node
{
try
{
var prevScrollTop = element.scrollTop;
var prevScrollLeft = element.scrollLeft;
oItem.focus();
element.scrollTop = prevScrollTop;
element.scrollLeft = prevScrollLeft;
}
catch (e)
{
}
}
}
}
}
node = null;
try
{
node = getNodeFromIndex(HoverNodeIndex);
}
catch (e)
{
}
if (node != null && g_bInteractive)
{
var oItem = node.subtree.all.item("_tnaccess", 0);
if (oItem != null)
focusFilter(oItem);
}
}
//
// focusFilter
//
function focusFilter(oItem)
{
if (oItem.id == "_tnaccess")
oItem = oItem.all.item("_tntext", 0);
if (oItem.filters.length > 0)
{
var oFilter = oItem.filters.item("DXImageTransform.Microsoft.Alpha");
if (oFilter)
{
oFilter.opacity *= 2;
}
}
}
//
// onblur
//
function onblur()
{
var node = null;
g_bFocus = false;
try
{
node = getNodeFromIndex(selectedNodeIndex);
}
catch (e)
{
}
if (node != null)
{
var oItem = node.subtree.all.item("_tnaccess", 0);
if (oItem != null)
{
blurFilter(oItem);
oItem.tabIndex = -1;
}
}
node = null;
try
{
node = getNodeFromIndex(HoverNodeIndex);
}
catch (e)
{
}
if (node != null)
{
var oItem = node.subtree.all.item("_tnaccess", 0);
if (oItem != null)
{
blurFilter(oItem);
oItem.tabIndex = -1;
}
}
setHiddenHelperValue();
}
//
// blurFilter
//
// decreases alpha filter opacity on given node by 50%, adding one if needed
//
function blurFilter(oItem)
{
if (oItem.id == "_tnaccess")
oItem = oItem.all.item("_tntext", 0);
if (oItem.filters.length > 0)
{
var oFilter = oItem.filters.item("DXImageTransform.Microsoft.Alpha");
if (oFilter)
{
oFilter.opacity /= 2;
return;
}
}
oItem.style.filter += "progid:DXImageTransform.Microsoft.Alpha(opacity=50,style=0)";
}
//
// oncontentready
//
// oncontentready handler for the TREEVIEW element. Initializes the tree.
//
function oncontentready()
{
if (element.document.parentWindow.name.indexOf("__hifSmartNav") == 0)
return; // don't run script in SmartNav's IFrame
g_styles = new Object();
var strFont = "font: " + L_fontSize_Text + " " + L_fontName_Text + "; ";
g_styles["parent"] = strFont + "text-decoration: none; color: black; overflow:hidden;";
g_styles["child"] = strFont + "overflow:hidden;";
g_styles["defaultstyle"] = strFont + "display:inline-block; color: black; text-decoration:none; cursor: hand; overflow:hidden;";
g_styles["hoverstyle"] = "color: highlighttext; background-color:highlight; filter:progid:DXImageTransform.Microsoft.Alpha(opacity=50,style=0);";
g_styles["selectedstyle"] = "color: highlighttext; background-color:highlight;";
g_styles["icon"] = "cursor:hand;";
if (element.style.overflowX == "");
element.style.overflowX = "auto";
//
// Set treeview attributes to boolean
//
verifyBooleanAttribute(element, "showPlus");
if (element.getAttribute("showPlus") == false && element.getAttribute("selectExpands") == null)
element.setAttribute("selectExpands", true, 0);
verifyBooleanAttribute(element, "selectExpands");
verifyBooleanAttribute(element, "autoSelect");
verifyBooleanAttribute(element, "showLines");
verifyBooleanAttribute(element, "showToolTip");
var systemImagesPath = element.getAttribute("SystemImagesPath");
if (systemImagesPath == null)
element.setAttribute("SystemImagesPath", "treeimages/", 0);
else if (systemImagesPath.charAt(systemImagesPath.length - 1) != '/')
element.setAttribute("SystemImagesPath", systemImagesPath + '/', 0);
if (isRtl())
{
element.setAttribute("SystemImagesPath", element.getAttribute("SystemImagesPath") + "rtl/", 0);
}
// Create div for parsing content
contentNode = element.document.createElement("treeview");
contentNode.innerHTML = element.innerHTML;
element.tabIndex=0;
element.attachEvent("onkeydown", onkeydown);
element.attachEvent("onfocus", onfocus);
element.attachEvent("onblur", onblur);
f_AddStopEvent();
element.hideFocus = true;
if (element.getAttribute("selectedNodeIndex") == null)
prop_selectedNodeIndex = "";
if (element.getAttribute("HoverNodeIndex") == null)
element.setAttribute("HoverNodeIndex", "", 0);
// Create nodeTypes collection on the element
if (element.getAttribute("TreeNodeTypeSrc") == null)
{
element.nodeTypes = contentNode.children.tags("TREENODETYPE");
verifyTypeValues();
g_bTypesReady = true;
}
else
databindTypes();
if (treeNodeSrc != null)
{
if (element.nodeTypes != null)
{
contentNode.innerHTML = getNodeTypeHtml();
element.nodeTypes = contentNode.children.tags("TREENODETYPE");
}
else
contentNode.innerHTML = "";
databindNode(element);
}
else
{
g_bNodesReady = true;
tryToBuildTreeFromRoot();
}
}
//
// ondocumentready()
//
function ondocumentready()
{
if (element.document.parentWindow.name.indexOf("__hifSmartNav") == 0)
return; // don't run script in SmartNav's IFrame
f_CleanupEvents();
g_strQueuedEvents = "";
if (HoverNodeIndex.length > 0)
HoverNode(getNodeFromIndex(HoverNodeIndex));
g_bInteractive = true;
if (element.getAttribute("Focused") != null)
dofocus();
else
onblur();
var newScrollTop = element.getAttribute("__scrollTop");
var newScrollLeft = element.getAttribute("__scrollLeft");
if (newScrollTop != null)
element.scrollTop = newScrollTop;
if (newScrollLeft != null)
element.scrollLeft = newScrollLeft;
var parent = element.offsetParent;
if (parent != null)
{
var newParentTop = element.getAttribute("__parentTop");
var newParentLeft = element.getAttribute("__parentLeft");
if (newParentTop != null)
parent.scrollTop = newParentTop;
if (newParentLeft != null)
parent.scrollLeft = newParentLeft;
}
// verify selectedNodeIndex
if (getNodeFromIndex(selectedNodeIndex) == null)
{
if (getNodeFromIndex("0") != null)
selectedNodeIndex = "0";
else
selectedNodeIndex = "";
}
}
//
// changeIcon(node, imageUrl)
//
// Change the icon to the given Url. If the Url isn't found, don't change anything. The exception
// is if we try to set the icon to an unspecified ExpandedImageUrl, we instead show the ImageUrl.
//
function changeIcon(node, imageUrl)
{
var icon1;
var imageUrlLC = imageUrl.toLowerCase();
var textnode = node.subtree.all("_tntext", 0);
var accessnode = node.subtree.all("_tnaccess", 0);
var spacer = accessnode.previousSibling;
if (spacer != null)
{
icon1 = spacer.previousSibling;
if (icon1 != null && icon1.id != "_nodeicon")
icon1 = null;
}
else
icon1 = null;
var newSrc = getNodeAttribute(node, imageUrlLC);
if (newSrc != null && icon1 == null)
{
// node's ImageUrl attribute was not defined, so there is no icon. Make one.
icon1 = node.document.createElement("<IMG align='absmiddle' border='0' class='icon' id='_nodeicon' >");
icon1.src = newSrc;
accessnode.parentElement.insertBefore(icon1, accessnode);
// don't forget the spacer
spacer = node.document.createElement("<SPAN>");
spacer.style.width = 5;
accessnode.parentElement.insertBefore(spacer, accessnode);
}
else if (newSrc != null)
{
icon1.src = newSrc;
icon1.style.display = "inline";
}
else if (imageUrlLC == "imageurl")
{
if (icon1 != null)
{
// If the node's ImageUrl isn't defined, we don't want to leave a selected or expanded icon showing. Hide it.
icon1.style.display = "none";
}
}
else if (imageUrlLC == "selectedimageurl" && node.getAttribute("expanded") == true)
changeIcon(node, "expandedimageurl");
else
changeIcon(node, "imageurl");
if (icon1 != null)
{
icon1.style.cursor = textnode.style.cursor;
spacer.style.cursor = textnode.style.cursor;
}
}
//
// selectNode(node)
//
// Make node the selected node, unselecting the previously selected node.
//
// node: node to select
// delay: TRUE to delay event firing (used on keyboard nav with autoselect=true)
//
function selectNode(node, delay)
{
var nodeIndex;
var selectedNode = null;
var strImage;
var oItem;
var oOldItem = null;
if (node && node.subtree == null)
node = getNodeFromIndex("0"); // can't select a node that hasn't been built; select root instead
nodeIndex = getNodeIndex(node);
if (selectedNodeIndex != nodeIndex)
{
if (selectedNodeIndex != "" && selectedNodeIndex != null)
{
// unselect previous item
selectedNode = getNodeFromIndex(selectedNodeIndex);
if (selectedNode != null && selectedNode.subtree != null)
{
oOldItem = selectedNode.subtree.all.item("_tntext", 0);
SetAnchorClass(oOldItem, "defaultstyle");
oOldItem.parentElement.tabIndex = -1;
// restore old icon
if (selectedNode.getAttribute("expanded") == true)
strImage = "ExpandedImageUrl";
else
strImage = "ImageUrl";
changeIcon(selectedNode, strImage);
}
}
if (node)
{
oItem = node.subtree.all.item("_tntext", 0);
applySelection(node, oItem);
}
if (selectedNodeIndex.length > 0)
{
// Fire event
g_event = createEventObject();
g_event.newTreeNodeIndex = nodeIndex;
g_event.oldTreeNodeIndex = selectedNodeIndex;
prop_selectedNodeIndex = nodeIndex;
if (delay != true)
_tvevtSelect.fire(g_event);
else
{
if (g_timer != -1)
window.clearTimeout(g_timer);
g_timer = window.setTimeout(autoSelect, 500, "JScript");
if (g_selectedNodeBeforeDelay == "")
g_selectedNodeBeforeDelay = g_event.oldTreeNodeIndex;
}
}
else
prop_selectedNodeIndex = nodeIndex;
// Because we use a timeout to set focus, between a nodeclick and changing the selected node
// a user's event, which could have an alert, can occur. An alert blurs the tree, which
// leaves the old selected node with a 50% filter. So if we're blurred when we unselect the
// old node, call focusFilter to it to correct the problem.
if (!g_bFocus && g_bInteractive)
{
if (oOldItem != null)
focusFilter(oOldItem);
}
}
setHiddenHelperValue(); // here instead of inside the main IF to preserve focus change
}
function autoSelect()
{
g_timer = -1;
if (selectedNodeIndex != g_selectedNodeBeforeDelay)
{
navigateNode(getNodeFromIndex(g_event.newTreeNodeIndex));
_tvevtSelect.fire(g_event);
fireQueuedEvents();
}
g_selectedNodeBeforeDelay = "";
}
//
// applySelection()
//
function applySelection(node, oItem)
{
SetAnchorClass(oItem, "SelectedStyle");
// set new icon
changeIcon(node, "SelectedImageUrl");
scrollTree(node);
if (selectedNodeIndex.length > 0)
{
if (g_bFocus)
changeFocus(node, getNodeFromIndex(selectedNodeIndex));
}
// We need to blur node if we re-selected it while blurred (which can happen when using client OM)
if (!g_bFocus && g_bInteractive)
{
blurFilter(oItem);
}
}
//
// reselectNode()
//
function reselectNode(el)
{
if (selectedNodeIndex == getNodeIndex(el))
applySelection(el, el.subtree.all.item("_tntext", 0));
}
//
// tryToBuildTreeFromRoot()
//
function tryToBuildTreeFromRoot()
{
if (g_bNodesReady == true && g_bTypesReady == true)
{
var bRebuilding = g_bCreated;
buildTreeFromRoot();
if (selectedNodeIndex.length == 0)
{
prop_selectedNodeIndex = "0";
}
var node = getNodeFromIndex(selectedNodeIndex);
prop_selectedNodeIndex = "";
selectNode(node);
}
}
//
// buildTreeFromRoot()
//
function buildTreeFromRoot()
{
// Create TREEVIEW surrogate div, to encapsulate all other DIVs.
treeviewNode = element.document.createElement("HTML");
var bodyNode = element.document.createElement("BODY");
bodyNode.dir = element.getAttribute("dir");
bodyNode.style.direction = element.currentStyle.direction;
var head = element.document.createElement("HEAD");
var base = element.document.createElement("BASE");
var path = null;
if (window.location.pathname != null)
{
var lastslash = window.location.pathname.lastIndexOf("/");
if (lastslash != -1)
path = window.location.pathname.substr(0, lastslash + 1);
else
path = window.location.pathname;
}
var protocol = window.location.protocol.toLowerCase();
base.href = window.location.protocol + (protocol != "mailto:" && protocol != "news:" ? "//" : "") + window.location.host + path;
head.appendChild(base);
treeviewNode.appendChild(head);
var kids = contentNode.children.tags("treenode");
if (kids[0] != undefined)
{
for (var i = 0; i < kids.length; i++)
{
kids[i].sibIndex = i;
var subtree = buildTree(kids[i], 0);
bodyNode.appendChild(subtree);
}
}
treeviewNode.appendChild(bodyNode);
// Create viewlink.
treeviewNode.style.display = "block";
treeviewNode.subtree = bodyNode;
defaults.viewLink = treeviewNode.document;
setHiddenHelperValue();
g_bCreated = true;
}
//
// buildTree()
//
// Recursively traverses the
// parsed TREEVIEW tree and creates the document tree of nested
// DIVs for the viewlink.
//
// root: Root node of the subtree to build
// level: level of the tree
//
// returns: created subtree
//
function buildTree(root, level)
{
var display = true;
if (root.subtree != null && root.subtree.style.display == "none")
display = false;
root.detachEvent("onclick", DefaultNodeOnClick);
root.attachEvent("onclick", DefaultNodeOnClick);
// clear all cached values for this node
root.inheritedType = undefined;
root.nodetypeIndex = undefined;
// process expandLevel
var exp = makeBoolean(root.getAttribute("expanded"));
if (exp == null)
{
if (level < element.getAttribute("ExpandLevel"))
{
root.setAttribute("expanded", true, 0);
exp = true;
}
else
exp = false;
}
//
// convert string values to boolean
//
if (!verifyBooleanAttribute(root, "expanded"))
root.setAttribute("expanded", false, 0);
if (!verifyBooleanAttribute(root, "checked"))
root.setAttribute("checked", false);
verifyBooleanAttribute(root, "checkBox");
verifyBooleanAttribute(root, "checkedExpandable");
if (root.getAttribute("type") != null)
root.setAttribute("type", root.getAttribute("type").toLowerCase(), 0);
if (root.getAttribute("childType") != null)
root.setAttribute("childType", root.getAttribute("childType").toLowerCase(), 0);
// Create this node first
var collChildren = root.children.tags("treenode");
var iChildren = collChildren.length;
var expandable = getNodeAttribute(root, "expandable");
if (expandable == null && root.getAttribute("TreeNodeSrc") != null)
expandable = "checkOnce";
if (root.getAttribute("_bound") != "binding")
{
var subtree = generateItem(root, iChildren > 0 || (expandable == "always" || (expandable == "checkOnce" && root.getAttribute("checkedExpandable") != true)) ? "parent" : "child");
if (display == false)
subtree.style.display = "none";
if (exp == true && root.getAttribute("TreeNodeSrc") != null && root.getAttribute("_bound") != "complete")
{
// Databind. When databinding is finished, this subtree will be built automatically
root.setAttribute("expanded", true, 0);
saveSubtree(root, subtree);
databindNode(root);
}
else
{
// Create children
if (root.getAttribute("expanded") == true)
{
for (var i = 0; i < iChildren; i++)
{
collChildren[i].sibIndex = i;
var sub2 = buildTree(collChildren[i], level + 1);
if (sub2 != undefined)
subtree.appendChild(sub2);
}
}
else
{
for (var i = 0; i < iChildren; i++)
{
if (collChildren[i].getAttribute("subtree") != null)
collChildren[i].subtree = null;
}
}
saveSubtree(root, subtree);
}
}
return root.subtree;
}
//
// saveSubtree(el, subtree)
//
function saveSubtree(el, subtree)
{
if (el.getAttribute("subtree") == null)
el.subtree = subtree;
else {
el.subtree.replaceNode(subtree);
el.subtree = subtree;
}
}
//
// calcJunction(el)
//
// Determine if this node is at an L, T, or top root (R) junction.
//
function calcJunction(el)
{
var elParent = el.parentElement;
var collChildren = elParent.children.tags("treenode");
if (elParent.tagName == "treeview" && collChildren[0] == el)
{
if (collChildren.length > 1)
return ('F');
else
return ('R');
}
else
{
if (collChildren[collChildren.length - 1] == el)
{
return ('L');
}
else
{
return ('T');
}
}
}
//
// generateItem(el, nodeclass)
//
// Creates the DOM object tree for a TREEVIEW item.
//
// el: TREENODE element for which the tree is generated
// nodeclass: "parent" or "child" (leaf)
//
function generateItem(el, nodeClass)
{
var image;
var plusminusNode;
var elAnchor;
var expImgUrl = getNodeAttribute(el, "ExpandedImageUrl");
var imgUrl = getNodeAttribute(el, "ImageUrl");
var node = el.document.createElement("DIV");
var cJunction;
var junctionNode;
var str;
node.className = nodeClass;
node.treenode = el;
node.noWrap = true;
node.style.display = "block";
if (nodeClass == "child" && el.getAttribute("expanded") == true)
el.setAttribute("expanded", false, 0);
// Determine L, T, or root junction
cJunction = calcJunction(el);
junctionNode = generateJunctionNode(el, cJunction, nodeClass);
node.appendChild(junctionNode);
addLinesAndWhitespace(node, el, junctionNode);
// Add checkbox
if (getNodeAttribute(el, "checkBox") == true)
{
var cb = createCheckBox(el);
node.appendChild(cb);
}
// Add anchor tag
elAnchor = el.document.createElement("<A>");
elAnchor.onclick = nodePlusMinusClick;
junctionNode.applyElement(elAnchor, "outside");
// Add second anchor for image/text
elAnchor = el.document.createElement("<A tabindex=-1>");
str = getNodeAttribute(el, "NavigateUrl");
if (str != null && str != "")
{
elAnchor.href = str;
}
str = getNodeAttribute(el, "Target");
if (str != null)
elAnchor.target = str;
// For accessibility, generate another anchor to enclose the text node
var accessAnchor = elAnchor.cloneNode();
accessAnchor.id = "_tnaccess";
elAnchor.onclick = nodeClick;
elAnchor.oncontextmenu = contextmenu;
elAnchor.onmousedown = mousedown;
elAnchor.onmouseup = mouseup;
node.insertBefore(elAnchor);
imageSrc = (nodeClass == "parent" && el.getAttribute("expanded") == true && expImgUrl != null ? expImgUrl : imgUrl);
var spacer = null;
if (imageSrc != null && imageSrc != undefined)
{
image = el.document.createElement("<IMG align='absmiddle' border='0' class='icon' id='_nodeicon'>");
image.src = imageSrc;
image.style.cssText = g_styles["icon"];
elAnchor.appendChild(image);
spacer = el.document.createElement("<SPAN>");
spacer.style.width = 5;
elAnchor.appendChild(spacer);
}
var textNode = generateTextNode(el);
if (spacer != null)
{
spacer.style.cursor = textNode.style.cursor;
image.style.cursor = textNode.style.cursor;
}
if (nodeClass == "parent" && element.getAttribute("showToolTip") != false)
accessAnchor.title = textNode.innerText + " : " + L_strToolTip_Text;
accessAnchor.appendChild(textNode);
elAnchor.appendChild(accessAnchor);
elAnchor.onmouseenter = mOver;
elAnchor.onmouseleave = mOut;
return node;
}
//
// createCheckBox
//
function createCheckBox(el)
{
var form = el.document.createElement("<FORM style='display:inline' name='_fcb'>");
var bChecked = el.getAttribute("checked");
var cb = el.document.createElement("<INPUT style='display:inline' tabindex=-1 type=checkbox name='_cb'" + (bChecked ? " checked " : " ") + "/>");
cb.onclick = checkboxClick;
form.appendChild(cb);
return form;
}
//
// generateJunctionNode()
//
function generateJunctionNode(el, cJunction, nodeClass)
{
var imageSrc;
var junctionNode;
var systemImagesPath = element.getAttribute("systemImagesPath");
if (element.getAttribute("showLines") != false)
{
imageSrc = systemImagesPath;
switch (cJunction)
{
case 'L':
imageSrc += "L";
break;
case 'T':
imageSrc += "T";
break;
case 'R':
imageSrc += "R";
break;
case 'F':
imageSrc += "F";
break;
default:
return null;
break;
}
if (nodeClass == "parent" && element.getAttribute("showPlus") != false )
{
if (el.getAttribute("expanded") == true)
imageSrc += "minus.gif";
else
imageSrc +="plus.gif";
}
else
imageSrc += ".gif";
}
else
{
if (nodeClass == "parent" && element.getAttribute("showPlus") != false)
{
if (el.getAttribute("expanded") == true)
imageSrc = systemImagesPath + "minus.gif";
else
imageSrc = systemImagesPath + "plus.gif";
}
else
{
imageSrc = systemImagesPath + "white.gif";
}
}
if (element.getAttribute("showLines") == false && element.getAttribute("showPlus") == false)
junctionNode = element.document.createElement("<SPAN name='junction'>");
else
{
junctionNode = element.document.createElement("<IMG align='absmiddle' border='0' class='icon' name='junction'>");
junctionNode.src = imageSrc;
}
return junctionNode;
}
//
// addLinesAndWhitespace()
//
function addLinesAndWhitespace(node, el, junctionNode)
{
//
// Walk up tree to draw lines/whitespace
//
var elWalk = el.parentElement;
var elInsertBefore = junctionNode;
var systemImagesPath = element.getAttribute("systemImagesPath");
if (element.getAttribute("showLines") != false)
{
while (elWalk && elWalk.tagName.toLowerCase() == "treenode")
{
var nextSib = elWalk.nextSibling;
while (nextSib != null && nextSib.nodeType == 3)
nextSib = nextSib.nextSibling;
var imageSrc;
var image;
if (nextSib != null && nextSib.tagName.toLowerCase() == "treenode")
imageSrc = systemImagesPath + "I.gif";
else
imageSrc = systemImagesPath + "white.gif";
image = el.document.createElement("<IMG align='absmiddle' border='0'>");
image.src = imageSrc;
elInsertBefore = node.insertBefore(image, elInsertBefore);
elWalk = elWalk.parentElement;
}
}
else
{
var strIndex = getNodeIndex(el);
if (strIndex.indexOf(".") != -1)
{
if (element.getAttribute("Indent") != null)
{
if (isRtl())
node.style.marginRight = element.getAttribute("Indent");
else
node.style.marginLeft = element.getAttribute("Indent");
}
}
}
}
//
// generateTextNode()
//
// el: treenode for which to generate text node
//
function generateTextNode(el)
{
var textNode = el.document.createElement("<SPAN id=_tntext tabIndex=-1 style='display:inline; height=100%'>");
if (el.getAttribute("Text") != null)
{
textNode.innerHTML = el.getAttribute("Text");
}
else
{
// Remove any TREENODEs from the inner content, keeping everything else.
var iChild = 0;
while (iChild < el.childNodes.length)
{
if (el.childNodes[iChild].nodeType == 3 || el.childNodes[iChild].tagName.toLowerCase() != "treenode")
{
// just copy the content
var oClone = el.childNodes[iChild].cloneNode(true);
textNode.appendChild(oClone);
}
iChild++;
}
}
textNode.className = "defaultstyle";
var defStyle = cascadeStyle(el, "defaultstyle");
textNode.style.cssText = defStyle;
return textNode;
}
//
// updateTree(el)
//
// Show or hide the children of element el based on el's Expanded
// attribute.
//
function updateTree(el)
{
if (el.getAttribute("expanded") == true)
{
// If we previously expanded this
// node, just show its children without rebuilding them.
var i = 0;
var coll = el.children.tags("treenode");
var bRebuild = true;
if (el.getAttribute("_buildChildren") != true && (coll.length > 0 && coll(0).getAttribute("subtree") != null))
{
bRebuild = false;
for (var i = 0; i < coll.length; i++)
{
if (coll(i).subtree == null)
{
// a node has been added since we last expanded. Rebuild everything.
bRebuild = true;
break;
}
coll(i).subtree.style.display = "block";
}
}
if (bRebuild)
{
// build and show children
el.removeAttribute("_buildChildren");
buildTree(el, getNodeLevel(el));
reselectNode(el);
if (HoverNodeIndex == getNodeIndex(el))
HoverNode(el);
}
}
else
{
// hide children
var collChildren = el.children.tags("treenode");
for (var i = 0; i < collChildren.length; i++)
{
collChildren(i).subtree.style.display = "none";
}
// If the selected or hovered node was one of the collapsed node's descendants,
// the collapsed node must become selected/hovered instead
var index = getNodeIndex(el);
if (selectedNodeIndex.length > index.length && selectedNodeIndex.substr(0,index.length) == index)
{
selectNode(el);
}
else if (selectedNodeIndex == index)
changeIcon(el, "SelectedImageUrl");
if (HoverNodeIndex.length >= index.length && HoverNodeIndex.substr(0, index.length) == index)
{
if (selectedNodeIndex != index)
{
if (HoverNodeIndex != index)
{
UnhoverNode(getNodeFromIndex(HoverNodeIndex));
HoverNode(el);
}
}
else
UnhoverNode(getNodeFromIndex(HoverNodeIndex));
}
}
setHiddenHelperValue();
}
//
// cascadeStyle(el, att)
//
// Cascade style from built-in to the tree to the type to the node.
//
function cascadeStyle(el, att)
{
// built-in
var str = g_styles[att];
// tree
var strStyle = element.getAttribute(att);
if (strStyle != null)
str = str + ";" + strStyle;
// type
strStyle = getNodeTypeAttribute(el, att);
if (strStyle != null)
str = str + ";" + strStyle;
// node
strStyle = el.getAttribute(att);
if (strStyle != null)
str = str + ";" + strStyle;
return str;
}
//
// getNodeTypeAttribute
//
// Returns the given attribute from the given element's node type.
//
function getNodeTypeAttribute(el, att)
{
var _nodetype = getNodeTypeObject(el);
if (_nodetype != null)
return _nodetype.getAttribute(att);
return null;
}
//
// getNodeAttribute
//
// Returns the given attribute from the node, the node's type, or the treeview
//
function getNodeAttribute(el, att)
{
var strReturn;
// try the node
strReturn = el.getAttribute(att);
if (strReturn != null)
return strReturn;
// try the node's type
strReturn = getNodeTypeAttribute(el, att);
if (strReturn != null)
return strReturn;
// try the tree
return element.getAttribute(att);
}
//
// navigateNode()
//
// If the given node has a NavigateUrl, navigate to it. Return TRUE if we're navigating our own page; FALSE otherwise.
//
function navigateNode(el)
{
var url = getNodeAttribute(el, "NavigateUrl");
if (url != null && url != "")
{
var target = getNodeAttribute(el, "Target");
if (target == null || target == "_self")
{
window.open(url, "_self");
return true;
}
else
window.open(url, target);
}
return false;
}
//
// checkboxClick()
//
// event handler for mouse click on an item's checkbox
//
function checkboxClick()
{
if (g_bInteractive == false)
return;
var el = this.parentElement.parentElement.treenode;
event.cancelBubble = true;
doCheckboxClick(el);
fireQueuedEvents();
}
//
// doCheckboxClick()
//
function doCheckboxClick(el){
var checked = private_getAttribute(el,"checked")
el.checked = !checked;
var evt = createEventObject();
evt.treeNodeIndex = getNodeIndex(el);
g_nodeClicked = el;
_tvevtCheck.fire(evt);
setNodeState(el,el.checked);// maybe need el only,but I think it's safly
}
function setNodeState(el,state){
_setChildNode(el,state);
_setParentNode(el,state);
}
function _setChildNode(el,state){
var childNodes = el.children;
if(childNodes.length > 0){// if has childs
for(var i = 0 ;i<=childNodes.length-1;i++){
private_setAttribute(childNodes[i],"Checked",state);
_saveCheckState(childNodes[i]);
_setChildNode(childNodes[i],state);
}
}
}
function _setParentNode(el,state){
var parentNode = el.parentElement;
if(parentNode){
if(!_checkSiblingdNode(el)){
private_setAttribute(parentNode,"Checked",state);
_saveCheckState(parentNode);
_setParentNode(parentNode,state);
}
}
}
function _checkSiblingdNode(el){
var parentNode = el.parentElement;// you can use getParentTreeNode function in this htc,but I like this usage.
for(var i = 0;i<=parentNode.children.length-1;i++){
if(el != parentNode.children[i]){
if(private_getAttribute(parentNode.children[i],"Checked")){
return true;
}
}
}
return false;
}
function _saveCheckState(el){
if(getNodeIndex(el))
queueEvent('oncheck', getNodeIndex(el));
}
//
// nodeClick()
//
// event handler for mouse click on an item in the tree
//
function nodeClick()
{
if (g_bInteractive == false)
return;
var el = this.parentElement.treenode;
if (doNodeClick(el) == true)
{
if (element.getAttribute("selectExpands") == true)
doNodePlusMinusClick(el);
fireQueuedEvents();
}
}
//
// contextmenu()
//
// event handler for right-clicking a tree node
//
function contextmenu()
{
event.cancelBubble = true;
e = element.document.createEventObject(event);
e.treeNodeIndex = getNodeIndex(this.parentElement.treenode);
event.returnValue = element.fireEvent("oncontextmenu", e);
}
//
// mousedown()
//
function mousedown()
{
if (event.button & 1)
{
g_bMouseDown = true;
}
}
//
// mouseup()
//
function mouseup()
{
g_bMouseDown = false;
}
//
// nodePlusMinusClick()
//
// event handler for mouse click on the plus/minus icon of a treenode
//
function nodePlusMinusClick()
{
if (g_bInteractive == false)
return;
var el = this.parentElement.treenode;
if (doNodePlusMinusClick(el) == true)
fireQueuedEvents();
}
//
// doNodeClick()
//
// Does the work associated with a node click. Separated out from nodeClick() so that
// we can call it directly without having to identify the anchor element of a node.
//
// returns: true to continue processing
// false to stop (because we're navigating our own page)
//
function doNodeClick(el)
{
if (g_bInteractive == false)
return;
g_nodeClicked = el;
// The element, which is in a content node outside of the document, is outside the event hierarchy.
// Fire the event ourselves, rather than relying on bubbling.
event.cancelBubble = true;
el.fireEvent("onclick"); // Execute our onclick handler
element.fireEvent("onclick", event); // Execute the tree's onclick handler
if (getNodeAttribute(el, "NavigateUrl") != null)
{
var target = getNodeAttribute(el, "Target");
if (target == null || target.toLowerCase() == "_self")
return false;
}
selectNode(el);
return true;
}
//
// doNodePlusMinusClick()
//
// Does the work associated with a node click. Separated out from nodePlusMinusClick() so that
// we can call it directly without having to identify the anchor element of a node.
//
// return: true if something interesting happened (expanded, collapsed), false otherwise
//
function doNodePlusMinusClick(el)
{
if (g_bInteractive == false)
return false;
// The element, which is in a content node outside of the document, is outside the event hierarchy.
// Fire the event ourselves, rather than relying on bubbling.
event.cancelBubble = true;
g_nodeClicked = el;
if (el.getAttribute("expanded") == false && el.getAttribute("_bound") == null && el.getAttribute("TreeNodeSrc") != null)
{
el._isExpanding = true;
private_databind(el);
return true;
}
else
return finishNodePlusMinusClick(el);
}
function finishNodePlusMinusClick(el)
{
// See if we're a leaf (no children) or a branch (children)
var exp = getNodeAttribute(el, "expandable");
if (exp == null && el.getAttribute("TreeNodeSrc") != null)
exp = "checkOnce";
if (el.children.tags("treenode").length > 0 || exp == "always" || (exp == "checkOnce" && el.getAttribute("checkedExpandable") != true))
{
//
// We're a branch. Update ourselves.
//
var expanded = !el.getAttribute("expanded");
el.setAttribute("expanded", expanded, 0);
if (exp == "checkOnce")
el.checkedExpandable = true;
var evt = createEventObject();
evt.treeNodeIndex = getNodeIndex(el);
var eventToFire = changeJunctionImage(el);
// update our children
updateTree(el);
doVisualRefresh();
// show status node if we're posting back for databinding
if (expanded == true && el.children.tags("treenode").length == 0 && element.getAttribute("onfirequeuedevents") != null)
addStatusNode(el, L_strRetrievingNodes_Text);
eventToFire.fire(evt);
return true;
}
return false;
}
//
// changeJunctionImage()
//
// Changes the +/- junction image to match current Expanded state.
//
// el: treenode element containing junction image to change
//
function changeJunctionImage(el)
{
// find the icons we need to change
var icon1 = el.subtree.all("junction",0);
if (el.getAttribute("expanded") == true)
{
// Expanding the node
if (icon1 != null)
icon1.src = icon1.src.replace(/plus/, "minus");
if (selectedNodeIndex != getNodeIndex(el) || getNodeAttribute(el, "selectedimageurl") == null)
changeIcon(el, "ExpandedImageUrl");
return _tvevtExpand;
}
else
{
// Collapsing the node
if (icon1 != null)
icon1.src = icon1.src.replace(/minus/, "plus");
if (selectedNodeIndex != getNodeIndex(el))
changeIcon(el, "ImageUrl");
return _tvevtCollapse;
}
}
//
// DefaultNodeOnClick()
//
// A default onclick handler for treenode elements to cancel the event bubble.
// This is needed for the server control, otherwise the event will bubble up the
// tree until it hits a node with an onclick handler. In the case of a server
// control, odds are good that the onclick handler will cause a server postback,
// thereby preventing the tree from getting its onclick. So we need to cancel
// the bubble, allowing the onclick event we fire on the tree to get through.
//
function DefaultNodeOnClick()
{
event.cancelBubble = true;
}
function getClickedNodeIndex()
{
if (g_nodeClicked != null)
return getNodeIndex(g_nodeClicked);
else
return null;
}
function getNodeLevel(node)
{
var level = 0;
while (node.parentElement.tagName.toLowerCase() == "treenode")
{
node = node.parentElement;
level++;
}
return level;
}
//
// getNodeIndex()
//
// Walks up the tree, generating an index string of the form a.b.c[...].z (ex: 1.0.5.12) where
// each number represents a 0-based index into a set of children. Each set of these values
// creates a unique index to a node. In the following tree:
// A
// / |
// B C D
// / /
// E F G H
// node F is 0.0.1, node G is 0.2.0, and H is 0.2.1.
//
function getNodeIndex(node)
{
var strIndex = "";
if (node != null)
{
if (node.getAttribute("sibIndex") == null)
{
if (node.parentElement == null)
{
// There is no parent, this node is in the ether
return null;
}
// generate a sibling index
var col = node.parentElement.children.tags("treenode");
var i = 0;
while (col[i] != node)
i++;
node.sibIndex = i;
}
strIndex = node.sibIndex.toString();
while (node.parentElement && node.parentElement.tagName.toLowerCase() == "treenode")
{
node = node.parentElement;
if (node.getAttribute("sibIndex") == null)
return null;
strIndex = node.sibIndex + "." + strIndex;
}
}
return strIndex;
}
//
// getNodeFromIndex()
//
// The flipside of getNodeIndex, this function returns a node given a dot-delimited index
//
function getNodeFromIndex(strIndex)
{
if (strIndex != null && strIndex != undefined && strIndex.length != 0)
{
// convert index string into array of strings
var a = strIndex.split(".");
var i = 0;
var node = contentNode;
while (i < a.length)
{
var coll = node.children.tags("treenode");
if (coll == null || coll.length < (a[i] - 0) + 1)
{
return null;
}
node = coll.item(a[i++] - 0);
}
return node;
}
else
{
return null;
}
}
// Copyright (c) 2000-2003 Microsoft Corporation. All Rights Reserved.
//---------------------------------------------------------------------->
<public:component tagname=treeview literalcontent=true>
<public:attach event=oncontentready onevent="oncontentready()" />
<public:attach event=ondocumentready onevent="ondocumentready()" />
<public:attach event="onscroll" onevent="onScroll()" />
<public:event name="onexpand" id="_tvevtExpand" />
<public:event name="oncollapse" id="_tvevtCollapse" />
<public:event name="onselectedindexchange" id="_tvevtSelect" />
<public:event name="oncheck" id="_tvevtCheck" />
<public:event name="onfirequeuedevents" id="_tvevtFireQueuedEvents" />
<public:event name="onnodebound" id="_tvevtNodeBound" />
<public:event name="onnodetypesbound" id="_tvevtNodeTypesBound" />
<public:event name="onhover" id="_tvevtHover" />
<public:event name="onunhover" id="_tvevtUnhover" />
<public:property name="clickedNodeIndex" GET="getClickedNodeIndex" />
<public:property name="defaultStyle" id="_tvpropDefaultStyle" GET="getDefaultStyle" PUT="setDefaultStyle" />
<public:property name="hoverStyle" id="_tvpropHoverStyle" GET="getHoverStyle" PUT="setHoverStyle" />
<public:property name="selectedStyle" id="_tvpropSelectedStyle" GET="getSelectedStyle" PUT="setSelectedStyle" />
<public:property name="childType" id="_tvpropChildType" GET="getChildType" PUT="setChildType" />
<public:property name="imageUrl" id="_tvpropImageUrl" GET="getImageUrl" PUT="setImageUrl" />
<public:property name="expandedImageUrl" id="_tvpropExpandedImageUrl" GET="getExpandedImageUrl" PUT="setExpandedImageUrl" />
<public:property name="selectedImageUrl" id="_tvpropSelectedImageUrl" GET="getSelectedImageUrl" PUT="setSelectedImageUrl" />
<public:property name="target" id="_tvpropTarget" GET="getTarget" PUT="setTarget" />
<public:property name="treeNodeSrc" id="_tvpropTreeNodeSrc" GET="getTreeNodeSrc" PUT="setTreeNodeSrc" />
<public:property name="treeNodeXsltSrc" id="_tvpropTreeNodeXsltSrc" GET="getTreeNodeXsltSrc" PUT="setTreeNodeXsltSrc" />
<public:property name="selectExpands" id="_tvpropSelectExpands" GET="getSelectExpands" PUT="setSelectExpands" />
<public:property name="expandLevel" id="_tvpropExpandLevel" GET="getExpandLevel" PUT="setExpandLevel" />
<public:property name="autoSelect" id="_tvpropAutoSelect" GET="getAutoSelect" PUT="setAutoSelect" />
<public:property name="treeNodeTypeSrc" id="_tvpropTreeNodeTypeSrc" GET="getTreeNodeTypeSrc" PUT="setTreeNodeTypeSrc" />
<public:property name="showLines" id="_tvpropShowLines" GET="getShowLines" PUT="setShowLines" />
<public:property name="showPlus" id="_tvpropShowPlus" GET="getShowPlus" PUT="setShowPlus" />
<public:property name="showToolTip" id="_tvpropShowToolTip" GET="getShowToolTip" PUT="setShowToolTip" />
<public:property name="indent" id="_tvpropIndent" GET="getIndent" PUT="setIndent" />
<public:property name="selectedNodeIndex" id="_tvpropSelectedNodeIndex" GET="getSelectedNodeIndex" PUT="setSelectedNodeIndex" />
<public:property name="systemImagesPath" id="_tvpropSystemImagesPath" GET="getSystemImagesPath" PUT="setSystemImagesPath" />
<public:method name="queueEvent" />
<public:method name="getTreeNode" />
<public:method name="addAt" />
<public:method name="createTreeNode" />
<public:method name="getTreeNodeType" />
<public:method name="createTreeNodeType" />
<public:method name="addTreeNodeType" />
<public:method name="add" />
<public:method name="databind" />
<public:method name="databindTypes" />
<public:method name="getChildren" />
</public:component>
<script language=javascript>
var contentNode;
var treeviewNode;
var g_typesNode;
var g_styles;
var g_event;
var g_timer = -1;
var g_nodeClicked = null;
var g_strQueuedEvents = "";
var g_bInteractive = false;
var g_numStop = 0;
var g_selectedNodeBeforeDelay = "";
var g_bFocus = false;
var g_bCreated = false;
var g_typeIsland = null;
var g_bNodesReady = false;
var g_bTypesReady = false;
var g_bMouseDown = false;
var g_pendingBinds = new Array(0);
var g_pendingSyncBinds = new Array(0);
var g_bindTimer = -1;
var g_bLock = false;
var g_bInTypesBoundEvent = false;
var L_strMSXMLError_Text = "Error creating MSXML object. Please make sure the MSXML library is installed on your computer.";
var L_strRetrievingNodes_Text = "Retrieving nodes...";
var L_strXMLError_Text = "Error loading XML file %s";
var L_strInvalidXML_Text = "Invalid XML in %s";
var L_strXSLTError_Text = " or unsupported XSLT in %s";
var L_fontSize_Text = "10pt";
var L_fontName_Text = "Times";
var L_strToolTip_Text = "Use +/- to expand/collapse";
// properties
var prop_defaultStyle = null;
var prop_hoverStyle = null;
var prop_selectedStyle = null;
var prop_childType = null;
var prop_imageUrl = null;
var prop_expandedImageUrl = null;
var prop_selectedImageUrl = null;
var prop_target = null;
var prop_treeNodeSrc = null;
var prop_treeNodeXsltSrc = null;
var prop_selectExpands = null;
var prop_expandLevel = -1;
var prop_autoSelect = false;
var prop_treeNodeTypeSrc = null;
var prop_showLines = true;
var prop_showPlus = true;
var prop_showToolTip = true;
var prop_indent = 19;
var prop_selectedNodeIndex = null;
var prop_systemImagesPath = null;
//
// QueueEvent()
//
// Queue an event for later posting to the server, when the
// _tvevtFireQueuedEvents event fires.
//
function queueEvent(strEvent, strParams)
{
if (g_strQueuedEvents.length > 0)
g_strQueuedEvents += ";";
g_strQueuedEvents += (strEvent + "," + strParams);
setHiddenHelperValue();
}
function getQueuedEvents()
{
return g_strQueuedEvents;
}
function fireQueuedEvents()
{
if (g_strQueuedEvents != "")
{
if (getAttribute("onfirequeuedevents") != null)
{
if (g_timer != -1)
{
// force pending autoSelect to trigger
window.clearTimeout(g_timer);
autoSelect();
}
else
{
g_bInteractive = false;
g_numStop = 0;
_tvevtFireQueuedEvents.fire();
}
}
}
}
//
// SetAnchorClass()
//
// Set the cssText property in addition to the className, since just setting className
// doesn't do the trick.
//
// node: Anchor to which we're applying a new class
// name: the class to apply
// DefaultStyle: Apply DefaultStyle
// HoverStyle: Apply DefaultStyle, then HoverStyle
// SelectedStyle: Apply DefaultStyle, then SelectedStyle
//
function SetAnchorClass(node, name)
{
var strStyle = "";
var lname = name.toLowerCase();
// Everything is based on DefaultStyle
strStyle += cascadeStyle(getParentTreeNode(node), "defaultstyle");
if (lname != "defaultstyle")
{
var str = cascadeStyle(getParentTreeNode(node), lname);
if (str != null)
{
strStyle += ";" + str;
}
}
node.style.cssText = strStyle;
if (lname == "hoverstyle" && g_bFocus == false)
blurFilter(node);
node.className = lname;
}
//
// getParentTreeNode()
//
// Walk up the display tree (NOT the TREENODE tree) until we find an element with
// a treenode expando.
//
function getParentTreeNode(node)
{
var el = node;
while (el != null && el.getAttribute("treenode") == null)
el = el.parentElement;
return el.getAttribute("treenode");
}
//
// HoverNode()
//
// Apply hover effect to given text node
//
// textnode: textnode (id: _tntext) to apply hover to, or treenode
//
function HoverNode(textnode)
{
var node;
if (textnode.tagName.toLowerCase() == "treenode")
node = textnode.subtree.all.item("_tntext", 0);
else
node = textnode;
var nodeIndex = getNodeIndex(getParentTreeNode(node));
if (node.className == "defaultstyle")
{
SetAnchorClass(node, "hoverstyle");
HoverNodeIndex = nodeIndex;
}
else if (node.className != "hoverstyle")
HoverNodeIndex = "";
e = element.document.createEventObject();
e.treeNodeIndex = nodeIndex;
_tvevtHover.fire(e);
setHiddenHelperValue();
}
//
// UnhoverNode()
//
// Remove hover effect from given text node
//
// textnode: textnode (id: _tntext) to remove hover from, or treenode
//
function UnhoverNode(textnode)
{
if (textnode != null)
{
var node;
if (textnode.tagName.toLowerCase() == "treenode")
node = textnode.subtree.all.item("_tntext", 0);
else
node = textnode;
if (node.className == "hoverstyle")
{
SetAnchorClass(node, "defaultstyle");
}
e = element.document.createEventObject(event);
if (HoverNodeIndex == "")
e.treeNodeIndex = getNodeIndex(getParentTreeNode(node))
else
e.treeNodeIndex = HoverNodeIndex;
_tvevtUnhover.fire(e);
HoverNodeIndex = "";
setHiddenHelperValue();
}
}
// mOver()
//
// onmouseover handler for the anchor of a treenode
//
function mOver()
{
if (g_bInteractive == true)
{
var oItem = this.all.item("_tntext", 0);
if (HoverNodeIndex.length > 0)
UnhoverNode(getNodeFromIndex(HoverNodeIndex));
HoverNode(oItem);
}
}
//
// mOut()
//
// onmouseout handler for the anchor of a treenode
//
function mOut()
{
if (g_bInteractive == true)
{
var node = this.parentElement.treenode;
var nodeIndex = getNodeIndex(node)
if (nodeIndex == HoverNodeIndex)
{
UnhoverNode(node);
window.status = window.defaultStatus;
}
else if (nodeIndex == selectedNodeIndex)
{
e = element.document.createEventObject(event);
e.treeNodeIndex = nodeIndex;
_tvevtUnhover.fire(e);
}
}
}
//
// onkeydown
//
function onkeydown()
{
if (!g_bInteractive)
return;
if (event.altKey == true)
return;
var oldNode;
var hoverNode = null;
if (HoverNodeIndex.length > 0)
{
oldNode = getNodeFromIndex(HoverNodeIndex);
hoverNode = oldNode;
}
else
oldNode = getNodeFromIndex(selectedNodeIndex);
switch (event.keyCode)
{
case 187: // keyboard +/=
if (event.shiftKey != true)
break;
// else fall through
case 107: // keypad +
if (oldNode.getAttribute("expanded") != true)
{
doNodePlusMinusClick(oldNode);
fireQueuedEvents();
}
event.returnValue = false;
break;
case 189: // keyboard -/_
if (event.shiftKey == true)
break;
// else fall through
case 109: // keypad -
if (oldNode.getAttribute("expanded") == true)
{
doNodePlusMinusClick(oldNode);
fireQueuedEvents();
}
event.returnValue = false;
break;
case 39: // right arrow
event.returnValue = false;
if (oldNode.children.tags("treenode").length == 0)
{
var exp = getNodeAttribute(oldNode, "expandable");
if (exp == null && oldNode.getAttribute("TreeNodeSrc") != null)
exp = "checkOnce";
if (oldNode.getAttribute("expanded") == true || !(exp == "always" || (exp == "checkOnce" && oldNode.getAttribute("checkedExpandable") != true)))
break;
}
if (oldNode.getAttribute("expanded") != true)
{
doNodePlusMinusClick(oldNode);
updateStatus(oldNode);
fireQueuedEvents();
break;
}
// fall through
case 40: // down arrow
var node = getNextVisibleNode(oldNode);
if (node != null)
{
if (element.getAttribute("autoselect") == true)
{
selectNode(node, true);
updateStatus(node);
UnhoverNode(hoverNode);
}
else
{
UnhoverNode(oldNode);
HoverNode(node);
changeFocus(node, oldNode);
updateStatus(node);
}
scrollTree(node);
}
event.returnValue = false;
break;
case 37: // left arrow
if (oldNode.getAttribute("expanded") == true)
{
doNodePlusMinusClick(oldNode);
fireQueuedEvents();
}
else
{
// jump the hover up to the parent node
var node = oldNode.parentElement;
while (node.tagName.substr(0,4).toLowerCase() != "tree")
node = node.parentElement;
if (node.tagName.toLowerCase() == "treenode")
{
if (element.getAttribute("autoselect") == true)
{
selectNode(node, true);
updateStatus(node);
UnhoverNode(hoverNode);
}
else
{
UnhoverNode(oldNode);
HoverNode(node);
changeFocus(node, oldNode);
updateStatus(node);
}
scrollTree(node);
}
}
event.returnValue = false;
break;
case 38: // up arrow
var node = getPreviousVisibleNode(oldNode);
if (node != null)
{
if (element.getAttribute("autoselect") == true)
{
selectNode(node, true);
updateStatus(node);
UnhoverNode(hoverNode);
}
else
{
UnhoverNode(oldNode);
HoverNode(node);
changeFocus(node, oldNode);
updateStatus(node);
}
scrollTree(node);
}
event.returnValue = false;
break;
case 32: // spacebar
var cb = oldNode.subtree.all.item("_cb", 0);
if (cb != null)
{
cb.setAttribute("checked", !cb.getAttribute("checked"), 0);
doCheckboxClick(oldNode);
fireQueuedEvents();
}
event.returnValue = false;
break;
case 13: // enter key
doNodeClick(oldNode)
if (!navigateNode(oldNode))
{
if (element.getAttribute("selectExpands") == true)
doNodePlusMinusClick(oldNode);
fireQueuedEvents();
}
event.returnValue = false;
break;
}
}
//
// changeFocus()
//
function changeFocus(node, oldNode)
{
var accessnode = node.subtree.all.item("_tnaccess", 0);
accessnode.tabindex = 1;
accessnode.focus();
accessnode = oldNode.subtree.all.item("_tnaccess", 0);
accessnode.tabindex = -1;
}
//
// updateStatus()
//
function updateStatus(node)
{
var href = node.getAttribute("navigateurl");
if (href != null)
window.status = href;
else
window.status = window.defaultStatus;
}
//
// onstop
//
function onstop()
{
g_numStop++;
if (g_numStop >= 2)
{
g_bInteractive = true;
}
for (var i = 0; i < g_pendingBinds.length; i++)
{
if (g_pendingBinds[i] != null && g_pendingBinds[i].el != null)
g_pendingBinds[i].el._bound = null;
}
}
//
// onfocus
//
function onfocus()
{
if (!g_bFocus)
{
dofocus();
}
}
//
// dofocus
//
function dofocus()
{
var node = null;
g_bFocus = true; // sometimes we just call dofocus() without going through onfocus()
try
{
node = getNodeFromIndex(selectedNodeIndex);
}
catch (e)
{
}
if (node != null)
{
var oItem = node.subtree.all.item("_tnaccess", 0);
if (oItem != null)
{
if (g_bInteractive)
{
focusFilter(oItem);
oItem.tabIndex = 1;
if (!g_bMouseDown) // don't scroll the window when selecting a new node
{
try
{
var prevScrollTop = element.scrollTop;
var prevScrollLeft = element.scrollLeft;
oItem.focus();
element.scrollTop = prevScrollTop;
element.scrollLeft = prevScrollLeft;
}
catch (e)
{
}
}
}
}
}
node = null;
try
{
node = getNodeFromIndex(HoverNodeIndex);
}
catch (e)
{
}
if (node != null && g_bInteractive)
{
var oItem = node.subtree.all.item("_tnaccess", 0);
if (oItem != null)
focusFilter(oItem);
}
}
//
// focusFilter
//
function focusFilter(oItem)
{
if (oItem.id == "_tnaccess")
oItem = oItem.all.item("_tntext", 0);
if (oItem.filters.length > 0)
{
var oFilter = oItem.filters.item("DXImageTransform.Microsoft.Alpha");
if (oFilter)
{
oFilter.opacity *= 2;
}
}
}
//
// onblur
//
function onblur()
{
var node = null;
g_bFocus = false;
try
{
node = getNodeFromIndex(selectedNodeIndex);
}
catch (e)
{
}
if (node != null)
{
var oItem = node.subtree.all.item("_tnaccess", 0);
if (oItem != null)
{
blurFilter(oItem);
oItem.tabIndex = -1;
}
}
node = null;
try
{
node = getNodeFromIndex(HoverNodeIndex);
}
catch (e)
{
}
if (node != null)
{
var oItem = node.subtree.all.item("_tnaccess", 0);
if (oItem != null)
{
blurFilter(oItem);
oItem.tabIndex = -1;
}
}
setHiddenHelperValue();
}
//
// blurFilter
//
// decreases alpha filter opacity on given node by 50%, adding one if needed
//
function blurFilter(oItem)
{
if (oItem.id == "_tnaccess")
oItem = oItem.all.item("_tntext", 0);
if (oItem.filters.length > 0)
{
var oFilter = oItem.filters.item("DXImageTransform.Microsoft.Alpha");
if (oFilter)
{
oFilter.opacity /= 2;
return;
}
}
oItem.style.filter += "progid:DXImageTransform.Microsoft.Alpha(opacity=50,style=0)";
}
//
// oncontentready
//
// oncontentready handler for the TREEVIEW element. Initializes the tree.
//
function oncontentready()
{
if (element.document.parentWindow.name.indexOf("__hifSmartNav") == 0)
return; // don't run script in SmartNav's IFrame
g_styles = new Object();
var strFont = "font: " + L_fontSize_Text + " " + L_fontName_Text + "; ";
g_styles["parent"] = strFont + "text-decoration: none; color: black; overflow:hidden;";
g_styles["child"] = strFont + "overflow:hidden;";
g_styles["defaultstyle"] = strFont + "display:inline-block; color: black; text-decoration:none; cursor: hand; overflow:hidden;";
g_styles["hoverstyle"] = "color: highlighttext; background-color:highlight; filter:progid:DXImageTransform.Microsoft.Alpha(opacity=50,style=0);";
g_styles["selectedstyle"] = "color: highlighttext; background-color:highlight;";
g_styles["icon"] = "cursor:hand;";
if (element.style.overflowX == "");
element.style.overflowX = "auto";
//
// Set treeview attributes to boolean
//
verifyBooleanAttribute(element, "showPlus");
if (element.getAttribute("showPlus") == false && element.getAttribute("selectExpands") == null)
element.setAttribute("selectExpands", true, 0);
verifyBooleanAttribute(element, "selectExpands");
verifyBooleanAttribute(element, "autoSelect");
verifyBooleanAttribute(element, "showLines");
verifyBooleanAttribute(element, "showToolTip");
var systemImagesPath = element.getAttribute("SystemImagesPath");
if (systemImagesPath == null)
element.setAttribute("SystemImagesPath", "treeimages/", 0);
else if (systemImagesPath.charAt(systemImagesPath.length - 1) != '/')
element.setAttribute("SystemImagesPath", systemImagesPath + '/', 0);
if (isRtl())
{
element.setAttribute("SystemImagesPath", element.getAttribute("SystemImagesPath") + "rtl/", 0);
}
// Create div for parsing content
contentNode = element.document.createElement("treeview");
contentNode.innerHTML = element.innerHTML;
element.tabIndex=0;
element.attachEvent("onkeydown", onkeydown);
element.attachEvent("onfocus", onfocus);
element.attachEvent("onblur", onblur);
f_AddStopEvent();
element.hideFocus = true;
if (element.getAttribute("selectedNodeIndex") == null)
prop_selectedNodeIndex = "";
if (element.getAttribute("HoverNodeIndex") == null)
element.setAttribute("HoverNodeIndex", "", 0);
// Create nodeTypes collection on the element
if (element.getAttribute("TreeNodeTypeSrc") == null)
{
element.nodeTypes = contentNode.children.tags("TREENODETYPE");
verifyTypeValues();
g_bTypesReady = true;
}
else
databindTypes();
if (treeNodeSrc != null)
{
if (element.nodeTypes != null)
{
contentNode.innerHTML = getNodeTypeHtml();
element.nodeTypes = contentNode.children.tags("TREENODETYPE");
}
else
contentNode.innerHTML = "";
databindNode(element);
}
else
{
g_bNodesReady = true;
tryToBuildTreeFromRoot();
}
}
//
// ondocumentready()
//
function ondocumentready()
{
if (element.document.parentWindow.name.indexOf("__hifSmartNav") == 0)
return; // don't run script in SmartNav's IFrame
f_CleanupEvents();
g_strQueuedEvents = "";
if (HoverNodeIndex.length > 0)
HoverNode(getNodeFromIndex(HoverNodeIndex));
g_bInteractive = true;
if (element.getAttribute("Focused") != null)
dofocus();
else
onblur();
var newScrollTop = element.getAttribute("__scrollTop");
var newScrollLeft = element.getAttribute("__scrollLeft");
if (newScrollTop != null)
element.scrollTop = newScrollTop;
if (newScrollLeft != null)
element.scrollLeft = newScrollLeft;
var parent = element.offsetParent;
if (parent != null)
{
var newParentTop = element.getAttribute("__parentTop");
var newParentLeft = element.getAttribute("__parentLeft");
if (newParentTop != null)
parent.scrollTop = newParentTop;
if (newParentLeft != null)
parent.scrollLeft = newParentLeft;
}
// verify selectedNodeIndex
if (getNodeFromIndex(selectedNodeIndex) == null)
{
if (getNodeFromIndex("0") != null)
selectedNodeIndex = "0";
else
selectedNodeIndex = "";
}
}
//
// changeIcon(node, imageUrl)
//
// Change the icon to the given Url. If the Url isn't found, don't change anything. The exception
// is if we try to set the icon to an unspecified ExpandedImageUrl, we instead show the ImageUrl.
//
function changeIcon(node, imageUrl)
{
var icon1;
var imageUrlLC = imageUrl.toLowerCase();
var textnode = node.subtree.all("_tntext", 0);
var accessnode = node.subtree.all("_tnaccess", 0);
var spacer = accessnode.previousSibling;
if (spacer != null)
{
icon1 = spacer.previousSibling;
if (icon1 != null && icon1.id != "_nodeicon")
icon1 = null;
}
else
icon1 = null;
var newSrc = getNodeAttribute(node, imageUrlLC);
if (newSrc != null && icon1 == null)
{
// node's ImageUrl attribute was not defined, so there is no icon. Make one.
icon1 = node.document.createElement("<IMG align='absmiddle' border='0' class='icon' id='_nodeicon' >");
icon1.src = newSrc;
accessnode.parentElement.insertBefore(icon1, accessnode);
// don't forget the spacer
spacer = node.document.createElement("<SPAN>");
spacer.style.width = 5;
accessnode.parentElement.insertBefore(spacer, accessnode);
}
else if (newSrc != null)
{
icon1.src = newSrc;
icon1.style.display = "inline";
}
else if (imageUrlLC == "imageurl")
{
if (icon1 != null)
{
// If the node's ImageUrl isn't defined, we don't want to leave a selected or expanded icon showing. Hide it.
icon1.style.display = "none";
}
}
else if (imageUrlLC == "selectedimageurl" && node.getAttribute("expanded") == true)
changeIcon(node, "expandedimageurl");
else
changeIcon(node, "imageurl");
if (icon1 != null)
{
icon1.style.cursor = textnode.style.cursor;
spacer.style.cursor = textnode.style.cursor;
}
}
//
// selectNode(node)
//
// Make node the selected node, unselecting the previously selected node.
//
// node: node to select
// delay: TRUE to delay event firing (used on keyboard nav with autoselect=true)
//
function selectNode(node, delay)
{
var nodeIndex;
var selectedNode = null;
var strImage;
var oItem;
var oOldItem = null;
if (node && node.subtree == null)
node = getNodeFromIndex("0"); // can't select a node that hasn't been built; select root instead
nodeIndex = getNodeIndex(node);
if (selectedNodeIndex != nodeIndex)
{
if (selectedNodeIndex != "" && selectedNodeIndex != null)
{
// unselect previous item
selectedNode = getNodeFromIndex(selectedNodeIndex);
if (selectedNode != null && selectedNode.subtree != null)
{
oOldItem = selectedNode.subtree.all.item("_tntext", 0);
SetAnchorClass(oOldItem, "defaultstyle");
oOldItem.parentElement.tabIndex = -1;
// restore old icon
if (selectedNode.getAttribute("expanded") == true)
strImage = "ExpandedImageUrl";
else
strImage = "ImageUrl";
changeIcon(selectedNode, strImage);
}
}
if (node)
{
oItem = node.subtree.all.item("_tntext", 0);
applySelection(node, oItem);
}
if (selectedNodeIndex.length > 0)
{
// Fire event
g_event = createEventObject();
g_event.newTreeNodeIndex = nodeIndex;
g_event.oldTreeNodeIndex = selectedNodeIndex;
prop_selectedNodeIndex = nodeIndex;
if (delay != true)
_tvevtSelect.fire(g_event);
else
{
if (g_timer != -1)
window.clearTimeout(g_timer);
g_timer = window.setTimeout(autoSelect, 500, "JScript");
if (g_selectedNodeBeforeDelay == "")
g_selectedNodeBeforeDelay = g_event.oldTreeNodeIndex;
}
}
else
prop_selectedNodeIndex = nodeIndex;
// Because we use a timeout to set focus, between a nodeclick and changing the selected node
// a user's event, which could have an alert, can occur. An alert blurs the tree, which
// leaves the old selected node with a 50% filter. So if we're blurred when we unselect the
// old node, call focusFilter to it to correct the problem.
if (!g_bFocus && g_bInteractive)
{
if (oOldItem != null)
focusFilter(oOldItem);
}
}
setHiddenHelperValue(); // here instead of inside the main IF to preserve focus change
}
function autoSelect()
{
g_timer = -1;
if (selectedNodeIndex != g_selectedNodeBeforeDelay)
{
navigateNode(getNodeFromIndex(g_event.newTreeNodeIndex));
_tvevtSelect.fire(g_event);
fireQueuedEvents();
}
g_selectedNodeBeforeDelay = "";
}
//
// applySelection()
//
function applySelection(node, oItem)
{
SetAnchorClass(oItem, "SelectedStyle");
// set new icon
changeIcon(node, "SelectedImageUrl");
scrollTree(node);
if (selectedNodeIndex.length > 0)
{
if (g_bFocus)
changeFocus(node, getNodeFromIndex(selectedNodeIndex));
}
// We need to blur node if we re-selected it while blurred (which can happen when using client OM)
if (!g_bFocus && g_bInteractive)
{
blurFilter(oItem);
}
}
//
// reselectNode()
//
function reselectNode(el)
{
if (selectedNodeIndex == getNodeIndex(el))
applySelection(el, el.subtree.all.item("_tntext", 0));
}
//
// tryToBuildTreeFromRoot()
//
function tryToBuildTreeFromRoot()
{
if (g_bNodesReady == true && g_bTypesReady == true)
{
var bRebuilding = g_bCreated;
buildTreeFromRoot();
if (selectedNodeIndex.length == 0)
{
prop_selectedNodeIndex = "0";
}
var node = getNodeFromIndex(selectedNodeIndex);
prop_selectedNodeIndex = "";
selectNode(node);
}
}
//
// buildTreeFromRoot()
//
function buildTreeFromRoot()
{
// Create TREEVIEW surrogate div, to encapsulate all other DIVs.
treeviewNode = element.document.createElement("HTML");
var bodyNode = element.document.createElement("BODY");
bodyNode.dir = element.getAttribute("dir");
bodyNode.style.direction = element.currentStyle.direction;
var head = element.document.createElement("HEAD");
var base = element.document.createElement("BASE");
var path = null;
if (window.location.pathname != null)
{
var lastslash = window.location.pathname.lastIndexOf("/");
if (lastslash != -1)
path = window.location.pathname.substr(0, lastslash + 1);
else
path = window.location.pathname;
}
var protocol = window.location.protocol.toLowerCase();
base.href = window.location.protocol + (protocol != "mailto:" && protocol != "news:" ? "//" : "") + window.location.host + path;
head.appendChild(base);
treeviewNode.appendChild(head);
var kids = contentNode.children.tags("treenode");
if (kids[0] != undefined)
{
for (var i = 0; i < kids.length; i++)
{
kids[i].sibIndex = i;
var subtree = buildTree(kids[i], 0);
bodyNode.appendChild(subtree);
}
}
treeviewNode.appendChild(bodyNode);
// Create viewlink.
treeviewNode.style.display = "block";
treeviewNode.subtree = bodyNode;
defaults.viewLink = treeviewNode.document;
setHiddenHelperValue();
g_bCreated = true;
}
//
// buildTree()
//
// Recursively traverses the
// parsed TREEVIEW tree and creates the document tree of nested
// DIVs for the viewlink.
//
// root: Root node of the subtree to build
// level: level of the tree
//
// returns: created subtree
//
function buildTree(root, level)
{
var display = true;
if (root.subtree != null && root.subtree.style.display == "none")
display = false;
root.detachEvent("onclick", DefaultNodeOnClick);
root.attachEvent("onclick", DefaultNodeOnClick);
// clear all cached values for this node
root.inheritedType = undefined;
root.nodetypeIndex = undefined;
// process expandLevel
var exp = makeBoolean(root.getAttribute("expanded"));
if (exp == null)
{
if (level < element.getAttribute("ExpandLevel"))
{
root.setAttribute("expanded", true, 0);
exp = true;
}
else
exp = false;
}
//
// convert string values to boolean
//
if (!verifyBooleanAttribute(root, "expanded"))
root.setAttribute("expanded", false, 0);
if (!verifyBooleanAttribute(root, "checked"))
root.setAttribute("checked", false);
verifyBooleanAttribute(root, "checkBox");
verifyBooleanAttribute(root, "checkedExpandable");
if (root.getAttribute("type") != null)
root.setAttribute("type", root.getAttribute("type").toLowerCase(), 0);
if (root.getAttribute("childType") != null)
root.setAttribute("childType", root.getAttribute("childType").toLowerCase(), 0);
// Create this node first
var collChildren = root.children.tags("treenode");
var iChildren = collChildren.length;
var expandable = getNodeAttribute(root, "expandable");
if (expandable == null && root.getAttribute("TreeNodeSrc") != null)
expandable = "checkOnce";
if (root.getAttribute("_bound") != "binding")
{
var subtree = generateItem(root, iChildren > 0 || (expandable == "always" || (expandable == "checkOnce" && root.getAttribute("checkedExpandable") != true)) ? "parent" : "child");
if (display == false)
subtree.style.display = "none";
if (exp == true && root.getAttribute("TreeNodeSrc") != null && root.getAttribute("_bound") != "complete")
{
// Databind. When databinding is finished, this subtree will be built automatically
root.setAttribute("expanded", true, 0);
saveSubtree(root, subtree);
databindNode(root);
}
else
{
// Create children
if (root.getAttribute("expanded") == true)
{
for (var i = 0; i < iChildren; i++)
{
collChildren[i].sibIndex = i;
var sub2 = buildTree(collChildren[i], level + 1);
if (sub2 != undefined)
subtree.appendChild(sub2);
}
}
else
{
for (var i = 0; i < iChildren; i++)
{
if (collChildren[i].getAttribute("subtree") != null)
collChildren[i].subtree = null;
}
}
saveSubtree(root, subtree);
}
}
return root.subtree;
}
//
// saveSubtree(el, subtree)
//
function saveSubtree(el, subtree)
{
if (el.getAttribute("subtree") == null)
el.subtree = subtree;
else {
el.subtree.replaceNode(subtree);
el.subtree = subtree;
}
}
//
// calcJunction(el)
//
// Determine if this node is at an L, T, or top root (R) junction.
//
function calcJunction(el)
{
var elParent = el.parentElement;
var collChildren = elParent.children.tags("treenode");
if (elParent.tagName == "treeview" && collChildren[0] == el)
{
if (collChildren.length > 1)
return ('F');
else
return ('R');
}
else
{
if (collChildren[collChildren.length - 1] == el)
{
return ('L');
}
else
{
return ('T');
}
}
}
//
// generateItem(el, nodeclass)
//
// Creates the DOM object tree for a TREEVIEW item.
//
// el: TREENODE element for which the tree is generated
// nodeclass: "parent" or "child" (leaf)
//
function generateItem(el, nodeClass)
{
var image;
var plusminusNode;
var elAnchor;
var expImgUrl = getNodeAttribute(el, "ExpandedImageUrl");
var imgUrl = getNodeAttribute(el, "ImageUrl");
var node = el.document.createElement("DIV");
var cJunction;
var junctionNode;
var str;
node.className = nodeClass;
node.treenode = el;
node.noWrap = true;
node.style.display = "block";
if (nodeClass == "child" && el.getAttribute("expanded") == true)
el.setAttribute("expanded", false, 0);
// Determine L, T, or root junction
cJunction = calcJunction(el);
junctionNode = generateJunctionNode(el, cJunction, nodeClass);
node.appendChild(junctionNode);
addLinesAndWhitespace(node, el, junctionNode);
// Add checkbox
if (getNodeAttribute(el, "checkBox") == true)
{
var cb = createCheckBox(el);
node.appendChild(cb);
}
// Add anchor tag
elAnchor = el.document.createElement("<A>");
elAnchor.onclick = nodePlusMinusClick;
junctionNode.applyElement(elAnchor, "outside");
// Add second anchor for image/text
elAnchor = el.document.createElement("<A tabindex=-1>");
str = getNodeAttribute(el, "NavigateUrl");
if (str != null && str != "")
{
elAnchor.href = str;
}
str = getNodeAttribute(el, "Target");
if (str != null)
elAnchor.target = str;
// For accessibility, generate another anchor to enclose the text node
var accessAnchor = elAnchor.cloneNode();
accessAnchor.id = "_tnaccess";
elAnchor.onclick = nodeClick;
elAnchor.oncontextmenu = contextmenu;
elAnchor.onmousedown = mousedown;
elAnchor.onmouseup = mouseup;
node.insertBefore(elAnchor);
imageSrc = (nodeClass == "parent" && el.getAttribute("expanded") == true && expImgUrl != null ? expImgUrl : imgUrl);
var spacer = null;
if (imageSrc != null && imageSrc != undefined)
{
image = el.document.createElement("<IMG align='absmiddle' border='0' class='icon' id='_nodeicon'>");
image.src = imageSrc;
image.style.cssText = g_styles["icon"];
elAnchor.appendChild(image);
spacer = el.document.createElement("<SPAN>");
spacer.style.width = 5;
elAnchor.appendChild(spacer);
}
var textNode = generateTextNode(el);
if (spacer != null)
{
spacer.style.cursor = textNode.style.cursor;
image.style.cursor = textNode.style.cursor;
}
if (nodeClass == "parent" && element.getAttribute("showToolTip") != false)
accessAnchor.title = textNode.innerText + " : " + L_strToolTip_Text;
accessAnchor.appendChild(textNode);
elAnchor.appendChild(accessAnchor);
elAnchor.onmouseenter = mOver;
elAnchor.onmouseleave = mOut;
return node;
}
//
// createCheckBox
//
function createCheckBox(el)
{
var form = el.document.createElement("<FORM style='display:inline' name='_fcb'>");
var bChecked = el.getAttribute("checked");
var cb = el.document.createElement("<INPUT style='display:inline' tabindex=-1 type=checkbox name='_cb'" + (bChecked ? " checked " : " ") + "/>");
cb.onclick = checkboxClick;
form.appendChild(cb);
return form;
}
//
// generateJunctionNode()
//
function generateJunctionNode(el, cJunction, nodeClass)
{
var imageSrc;
var junctionNode;
var systemImagesPath = element.getAttribute("systemImagesPath");
if (element.getAttribute("showLines") != false)
{
imageSrc = systemImagesPath;
switch (cJunction)
{
case 'L':
imageSrc += "L";
break;
case 'T':
imageSrc += "T";
break;
case 'R':
imageSrc += "R";
break;
case 'F':
imageSrc += "F";
break;
default:
return null;
break;
}
if (nodeClass == "parent" && element.getAttribute("showPlus") != false )
{
if (el.getAttribute("expanded") == true)
imageSrc += "minus.gif";
else
imageSrc +="plus.gif";
}
else
imageSrc += ".gif";
}
else
{
if (nodeClass == "parent" && element.getAttribute("showPlus") != false)
{
if (el.getAttribute("expanded") == true)
imageSrc = systemImagesPath + "minus.gif";
else
imageSrc = systemImagesPath + "plus.gif";
}
else
{
imageSrc = systemImagesPath + "white.gif";
}
}
if (element.getAttribute("showLines") == false && element.getAttribute("showPlus") == false)
junctionNode = element.document.createElement("<SPAN name='junction'>");
else
{
junctionNode = element.document.createElement("<IMG align='absmiddle' border='0' class='icon' name='junction'>");
junctionNode.src = imageSrc;
}
return junctionNode;
}
//
// addLinesAndWhitespace()
//
function addLinesAndWhitespace(node, el, junctionNode)
{
//
// Walk up tree to draw lines/whitespace
//
var elWalk = el.parentElement;
var elInsertBefore = junctionNode;
var systemImagesPath = element.getAttribute("systemImagesPath");
if (element.getAttribute("showLines") != false)
{
while (elWalk && elWalk.tagName.toLowerCase() == "treenode")
{
var nextSib = elWalk.nextSibling;
while (nextSib != null && nextSib.nodeType == 3)
nextSib = nextSib.nextSibling;
var imageSrc;
var image;
if (nextSib != null && nextSib.tagName.toLowerCase() == "treenode")
imageSrc = systemImagesPath + "I.gif";
else
imageSrc = systemImagesPath + "white.gif";
image = el.document.createElement("<IMG align='absmiddle' border='0'>");
image.src = imageSrc;
elInsertBefore = node.insertBefore(image, elInsertBefore);
elWalk = elWalk.parentElement;
}
}
else
{
var strIndex = getNodeIndex(el);
if (strIndex.indexOf(".") != -1)
{
if (element.getAttribute("Indent") != null)
{
if (isRtl())
node.style.marginRight = element.getAttribute("Indent");
else
node.style.marginLeft = element.getAttribute("Indent");
}
}
}
}
//
// generateTextNode()
//
// el: treenode for which to generate text node
//
function generateTextNode(el)
{
var textNode = el.document.createElement("<SPAN id=_tntext tabIndex=-1 style='display:inline; height=100%'>");
if (el.getAttribute("Text") != null)
{
textNode.innerHTML = el.getAttribute("Text");
}
else
{
// Remove any TREENODEs from the inner content, keeping everything else.
var iChild = 0;
while (iChild < el.childNodes.length)
{
if (el.childNodes[iChild].nodeType == 3 || el.childNodes[iChild].tagName.toLowerCase() != "treenode")
{
// just copy the content
var oClone = el.childNodes[iChild].cloneNode(true);
textNode.appendChild(oClone);
}
iChild++;
}
}
textNode.className = "defaultstyle";
var defStyle = cascadeStyle(el, "defaultstyle");
textNode.style.cssText = defStyle;
return textNode;
}
//
// updateTree(el)
//
// Show or hide the children of element el based on el's Expanded
// attribute.
//
function updateTree(el)
{
if (el.getAttribute("expanded") == true)
{
// If we previously expanded this
// node, just show its children without rebuilding them.
var i = 0;
var coll = el.children.tags("treenode");
var bRebuild = true;
if (el.getAttribute("_buildChildren") != true && (coll.length > 0 && coll(0).getAttribute("subtree") != null))
{
bRebuild = false;
for (var i = 0; i < coll.length; i++)
{
if (coll(i).subtree == null)
{
// a node has been added since we last expanded. Rebuild everything.
bRebuild = true;
break;
}
coll(i).subtree.style.display = "block";
}
}
if (bRebuild)
{
// build and show children
el.removeAttribute("_buildChildren");
buildTree(el, getNodeLevel(el));
reselectNode(el);
if (HoverNodeIndex == getNodeIndex(el))
HoverNode(el);
}
}
else
{
// hide children
var collChildren = el.children.tags("treenode");
for (var i = 0; i < collChildren.length; i++)
{
collChildren(i).subtree.style.display = "none";
}
// If the selected or hovered node was one of the collapsed node's descendants,
// the collapsed node must become selected/hovered instead
var index = getNodeIndex(el);
if (selectedNodeIndex.length > index.length && selectedNodeIndex.substr(0,index.length) == index)
{
selectNode(el);
}
else if (selectedNodeIndex == index)
changeIcon(el, "SelectedImageUrl");
if (HoverNodeIndex.length >= index.length && HoverNodeIndex.substr(0, index.length) == index)
{
if (selectedNodeIndex != index)
{
if (HoverNodeIndex != index)
{
UnhoverNode(getNodeFromIndex(HoverNodeIndex));
HoverNode(el);
}
}
else
UnhoverNode(getNodeFromIndex(HoverNodeIndex));
}
}
setHiddenHelperValue();
}
//
// cascadeStyle(el, att)
//
// Cascade style from built-in to the tree to the type to the node.
//
function cascadeStyle(el, att)
{
// built-in
var str = g_styles[att];
// tree
var strStyle = element.getAttribute(att);
if (strStyle != null)
str = str + ";" + strStyle;
// type
strStyle = getNodeTypeAttribute(el, att);
if (strStyle != null)
str = str + ";" + strStyle;
// node
strStyle = el.getAttribute(att);
if (strStyle != null)
str = str + ";" + strStyle;
return str;
}
//
// getNodeTypeAttribute
//
// Returns the given attribute from the given element's node type.
//
function getNodeTypeAttribute(el, att)
{
var _nodetype = getNodeTypeObject(el);
if (_nodetype != null)
return _nodetype.getAttribute(att);
return null;
}
//
// getNodeAttribute
//
// Returns the given attribute from the node, the node's type, or the treeview
//
function getNodeAttribute(el, att)
{
var strReturn;
// try the node
strReturn = el.getAttribute(att);
if (strReturn != null)
return strReturn;
// try the node's type
strReturn = getNodeTypeAttribute(el, att);
if (strReturn != null)
return strReturn;
// try the tree
return element.getAttribute(att);
}
//
// navigateNode()
//
// If the given node has a NavigateUrl, navigate to it. Return TRUE if we're navigating our own page; FALSE otherwise.
//
function navigateNode(el)
{
var url = getNodeAttribute(el, "NavigateUrl");
if (url != null && url != "")
{
var target = getNodeAttribute(el, "Target");
if (target == null || target == "_self")
{
window.open(url, "_self");
return true;
}
else
window.open(url, target);
}
return false;
}
//
// checkboxClick()
//
// event handler for mouse click on an item's checkbox
//
function checkboxClick()
{
if (g_bInteractive == false)
return;
var el = this.parentElement.parentElement.treenode;
event.cancelBubble = true;
doCheckboxClick(el);
fireQueuedEvents();
}
//
// doCheckboxClick()
//
function doCheckboxClick(el){
var checked = private_getAttribute(el,"checked")
el.checked = !checked;
var evt = createEventObject();
evt.treeNodeIndex = getNodeIndex(el);
g_nodeClicked = el;
_tvevtCheck.fire(evt);
setNodeState(el,el.checked);// maybe need el only,but I think it's safly
}
function setNodeState(el,state){
_setChildNode(el,state);
_setParentNode(el,state);
}
function _setChildNode(el,state){
var childNodes = el.children;
if(childNodes.length > 0){// if has childs
for(var i = 0 ;i<=childNodes.length-1;i++){
private_setAttribute(childNodes[i],"Checked",state);
_saveCheckState(childNodes[i]);
_setChildNode(childNodes[i],state);
}
}
}
function _setParentNode(el,state){
var parentNode = el.parentElement;
if(parentNode){
if(!_checkSiblingdNode(el)){
private_setAttribute(parentNode,"Checked",state);
_saveCheckState(parentNode);
_setParentNode(parentNode,state);
}
}
}
function _checkSiblingdNode(el){
var parentNode = el.parentElement;// you can use getParentTreeNode function in this htc,but I like this usage.
for(var i = 0;i<=parentNode.children.length-1;i++){
if(el != parentNode.children[i]){
if(private_getAttribute(parentNode.children[i],"Checked")){
return true;
}
}
}
return false;
}
function _saveCheckState(el){
if(getNodeIndex(el))
queueEvent('oncheck', getNodeIndex(el));
}
//
// nodeClick()
//
// event handler for mouse click on an item in the tree
//
function nodeClick()
{
if (g_bInteractive == false)
return;
var el = this.parentElement.treenode;
if (doNodeClick(el) == true)
{
if (element.getAttribute("selectExpands") == true)
doNodePlusMinusClick(el);
fireQueuedEvents();
}
}
//
// contextmenu()
//
// event handler for right-clicking a tree node
//
function contextmenu()
{
event.cancelBubble = true;
e = element.document.createEventObject(event);
e.treeNodeIndex = getNodeIndex(this.parentElement.treenode);
event.returnValue = element.fireEvent("oncontextmenu", e);
}
//
// mousedown()
//
function mousedown()
{
if (event.button & 1)
{
g_bMouseDown = true;
}
}
//
// mouseup()
//
function mouseup()
{
g_bMouseDown = false;
}
//
// nodePlusMinusClick()
//
// event handler for mouse click on the plus/minus icon of a treenode
//
function nodePlusMinusClick()
{
if (g_bInteractive == false)
return;
var el = this.parentElement.treenode;
if (doNodePlusMinusClick(el) == true)
fireQueuedEvents();
}
//
// doNodeClick()
//
// Does the work associated with a node click. Separated out from nodeClick() so that
// we can call it directly without having to identify the anchor element of a node.
//
// returns: true to continue processing
// false to stop (because we're navigating our own page)
//
function doNodeClick(el)
{
if (g_bInteractive == false)
return;
g_nodeClicked = el;
// The element, which is in a content node outside of the document, is outside the event hierarchy.
// Fire the event ourselves, rather than relying on bubbling.
event.cancelBubble = true;
el.fireEvent("onclick"); // Execute our onclick handler
element.fireEvent("onclick", event); // Execute the tree's onclick handler
if (getNodeAttribute(el, "NavigateUrl") != null)
{
var target = getNodeAttribute(el, "Target");
if (target == null || target.toLowerCase() == "_self")
return false;
}
selectNode(el);
return true;
}
//
// doNodePlusMinusClick()
//
// Does the work associated with a node click. Separated out from nodePlusMinusClick() so that
// we can call it directly without having to identify the anchor element of a node.
//
// return: true if something interesting happened (expanded, collapsed), false otherwise
//
function doNodePlusMinusClick(el)
{
if (g_bInteractive == false)
return false;
// The element, which is in a content node outside of the document, is outside the event hierarchy.
// Fire the event ourselves, rather than relying on bubbling.
event.cancelBubble = true;
g_nodeClicked = el;
if (el.getAttribute("expanded") == false && el.getAttribute("_bound") == null && el.getAttribute("TreeNodeSrc") != null)
{
el._isExpanding = true;
private_databind(el);
return true;
}
else
return finishNodePlusMinusClick(el);
}
function finishNodePlusMinusClick(el)
{
// See if we're a leaf (no children) or a branch (children)
var exp = getNodeAttribute(el, "expandable");
if (exp == null && el.getAttribute("TreeNodeSrc") != null)
exp = "checkOnce";
if (el.children.tags("treenode").length > 0 || exp == "always" || (exp == "checkOnce" && el.getAttribute("checkedExpandable") != true))
{
//
// We're a branch. Update ourselves.
//
var expanded = !el.getAttribute("expanded");
el.setAttribute("expanded", expanded, 0);
if (exp == "checkOnce")
el.checkedExpandable = true;
var evt = createEventObject();
evt.treeNodeIndex = getNodeIndex(el);
var eventToFire = changeJunctionImage(el);
// update our children
updateTree(el);
doVisualRefresh();
// show status node if we're posting back for databinding
if (expanded == true && el.children.tags("treenode").length == 0 && element.getAttribute("onfirequeuedevents") != null)
addStatusNode(el, L_strRetrievingNodes_Text);
eventToFire.fire(evt);
return true;
}
return false;
}
//
// changeJunctionImage()
//
// Changes the +/- junction image to match current Expanded state.
//
// el: treenode element containing junction image to change
//
function changeJunctionImage(el)
{
// find the icons we need to change
var icon1 = el.subtree.all("junction",0);
if (el.getAttribute("expanded") == true)
{
// Expanding the node
if (icon1 != null)
icon1.src = icon1.src.replace(/plus/, "minus");
if (selectedNodeIndex != getNodeIndex(el) || getNodeAttribute(el, "selectedimageurl") == null)
changeIcon(el, "ExpandedImageUrl");
return _tvevtExpand;
}
else
{
// Collapsing the node
if (icon1 != null)
icon1.src = icon1.src.replace(/minus/, "plus");
if (selectedNodeIndex != getNodeIndex(el))
changeIcon(el, "ImageUrl");
return _tvevtCollapse;
}
}
//
// DefaultNodeOnClick()
//
// A default onclick handler for treenode elements to cancel the event bubble.
// This is needed for the server control, otherwise the event will bubble up the
// tree until it hits a node with an onclick handler. In the case of a server
// control, odds are good that the onclick handler will cause a server postback,
// thereby preventing the tree from getting its onclick. So we need to cancel
// the bubble, allowing the onclick event we fire on the tree to get through.
//
function DefaultNodeOnClick()
{
event.cancelBubble = true;
}
function getClickedNodeIndex()
{
if (g_nodeClicked != null)
return getNodeIndex(g_nodeClicked);
else
return null;
}
function getNodeLevel(node)
{
var level = 0;
while (node.parentElement.tagName.toLowerCase() == "treenode")
{
node = node.parentElement;
level++;
}
return level;
}
//
// getNodeIndex()
//
// Walks up the tree, generating an index string of the form a.b.c[...].z (ex: 1.0.5.12) where
// each number represents a 0-based index into a set of children. Each set of these values
// creates a unique index to a node. In the following tree:
// A
// / |
// B C D
// / /
// E F G H
// node F is 0.0.1, node G is 0.2.0, and H is 0.2.1.
//
function getNodeIndex(node)
{
var strIndex = "";
if (node != null)
{
if (node.getAttribute("sibIndex") == null)
{
if (node.parentElement == null)
{
// There is no parent, this node is in the ether
return null;
}
// generate a sibling index
var col = node.parentElement.children.tags("treenode");
var i = 0;
while (col[i] != node)
i++;
node.sibIndex = i;
}
strIndex = node.sibIndex.toString();
while (node.parentElement && node.parentElement.tagName.toLowerCase() == "treenode")
{
node = node.parentElement;
if (node.getAttribute("sibIndex") == null)
return null;
strIndex = node.sibIndex + "." + strIndex;
}
}
return strIndex;
}
//
// getNodeFromIndex()
//
// The flipside of getNodeIndex, this function returns a node given a dot-delimited index
//
function getNodeFromIndex(strIndex)
{
if (strIndex != null && strIndex != undefined && strIndex.length != 0)
{
// convert index string into array of strings
var a = strIndex.split(".");
var i = 0;
var node = contentNode;
while (i < a.length)
{
var coll = node.children.tags("treenode");
if (coll == null || coll.length < (a[i] - 0) + 1)
{
return null;
}
node = coll.item(a[i++] - 0);
}
return node;
}
else
{
return null;
}
}
//
// getNextVisibleNode()
//
function getNextVisibleNode(node)
{
var next = node;
if (node.getAttribute("expanded") == true)
{
// get first child treenode
next = node.children[0];
while (next != null && next != undefined && next.nodeName.toLowerCase() != "treenode")
next = next.nextSibling;
if (next)
return next;
}
// get first sibling treenode
next = node.nextSibling;
while (next != null && next != undefined && next.nodeName.toLowerCase() != "treenode")
next = next.nextSibling;
if (next != null)
return next;
// get first sibling of first ancestor that has one
next = node.parentElement;
while ((next.nextSibling == null || next.nextSibling == undefined) && next.nodeName.toLowerCase() == "treenode")
{
next = next.parentElement;
}
if (next.nextSibling != null && next.nextSibling != undefined && next.nextSibling.nodeName.toLowerCase() == "treenode")
return next.nextSibling;
else
return null;
}
//
// getPreviousVisibleNode()
//
function getPreviousVisibleNode(node)
{
var prev = node;
// check for a previous sibling
prev = node.previousSibling;
while (prev != null && prev != undefined && prev.nodeName.toLowerCase() != "treenode")
prev = prev.previousSibling;
if (prev)
{
// Found a previous sibling. If that sibling is expanded, we need to drop down to its last child
if (prev.getAttribute("expanded") == true)
{
// get last child
var lastChild = prev;
while (lastChild != node && lastChild != null)
{
prev = lastChild;
lastChild = getNextVisibleNode(prev);
}
}
return prev;
}
// get parent
if (node.parentElement.nodeName.toLowerCase() == "treenode")
return node.parentElement;
else
return null;
}
//
// setHiddenHelperValue()
//
function setHiddenHelperValue()
{
var id = element.HelperID;
if (id == null)
return;
var helper = window.document.all(id);
if (helper == null)
return;
var parentTop = -1;
var parentLeft = -1;
var parent = element.offsetParent;
if (parent != null)
{
parentTop = parent.scrollTop;
parentLeft = parent.scrollLeft;
}
helper.value = (g_bFocus ? "1" : "0") + "|" + HoverNodeIndex + "|" + element.scrollTop + "|" + element.scrollLeft + "|" + parentTop + "|" + parentLeft + "|" + g_strQueuedEvents;
}
//
// scrollTree()
//
function scrollTree(tnode)
{
var node = tnode.subtree.all.item("_tntext", 0);
var top = node.offsetTop - element.scrollTop;
if (top < 0)
{
element.scrollTop += top;
}
else
{
var bottom = top + node.offsetHeight;
var elemHeight = element.clientHeight;
if (bottom > elemHeight)
{
element.scrollTop += bottom - elemHeight;
}
}
var rc = node.getBoundingClientRect();
var elRc = element.getBoundingClientRect();
// scroll window if we're focused
if (g_bFocus)
{
if (elRc.top + rc.top < element.document.body.clientTop)
node.scrollIntoView(true);
else if (elRc.top + rc.bottom > element.document.body.clientHeight)
node.scrollIntoView(false);
}
}
//
// getInheritedType()
//
// Returns the node's inheritedType, if defined, or finds it and returns it if undefined.
// A node's inheritedType is the first of:
// * parent's childType
// * parent's type's childType
// * parent's inheritedType's childType
// * parent's inheritedType
//
function getInheritedType(el)
{
if (el.inheritedType === undefined || g_bInTypesBoundEvent)
{
var parentNode = el.parentElement;
/*
while (parentNode.tagName.toLowerCase() != "treenode" && parentNode.tagName.toLowerCase() != "treeview")
parentNode = parentNode.parentElement;
*/
// parent's childType
el.inheritedType = parentNode.getAttribute("childType");
var tagname = parentNode.tagName.toLowerCase();
if (el.inheritedType == null && tagname != "treeview")
{
// parent's type's or inheritedType's childType
var _parenttype = getNodeTypeObject(parentNode);
if (_parenttype != null)
{
el.inheritedType = _parenttype.getAttribute("childType");
}
// parent's inheritedType
if (el.inheritedType == null && tagname == "treenode")
{
el.inheritedType = getInheritedType(parentNode);
}
}
// grab from the treeview
if (el.inheritedType == null)
el.inheritedType = element.getAttribute("childType");
}
return el.inheritedType;
}
//
// getNodeTypeObject()
//
// Returns the node type object for the given node, if defined. If undefined, searches
// for and stores the node type object, then returns it. Returns null if no type is defined
// for this node.
//
// This function assumes that a node's type or inheritedType attribute holds the name of its type
//
function getNodeTypeObject(el)
{
if (el.nodetypeIndex == undefined || g_bInTypesBoundEvent)
{
var theType = el.getAttribute("type");
if (theType == null)
theType = getInheritedType(el);
if (theType == null)
return null;
theType = theType.toLowerCase();
var i = 0;
var len = element.nodeTypes.length;
while (i < len)
{
if (element.nodeTypes[i].getAttribute("type") == theType)
{
el.nodetypeIndex = i;
break;
}
i++;
}
}
return element.nodeTypes[el.nodetypeIndex];
}
//
// replaceJunctionNode()
//
// Replace the junction node of the given node by generating a new one
//
// node: treenode on which to perform replacement
//
function replaceJunctionNode(node)
{
if (node.subtree == null)
return;
var oldNode = node.subtree.all("junction", 0);
if (oldNode == null)
return;
var cJunction = calcJunction(node);
var exp = node.getAttribute("Expandable");
if (exp == null && node.getAttribute("TreeNodeSrc") != null)
exp = "checkOnce";
var bChildNodes = node.children.tags("treenode").length > 0;
var junctionNode = generateJunctionNode(node, cJunction, bChildNodes || (exp == "always" || (exp == "checkOnce" && node.getAttribute("checkedExpandable") != true)) ? "parent" : "child");
var accessNode = node.subtree.all("_tnaccess", 0);
if (!bChildNodes)
accessNode.title = "";
else
{
var textNode = node.subtree.all("_tntext", 0);
accessNode.title = textNode.innerText + " : " + L_strToolTip_Text;
}
oldNode.replaceNode(junctionNode);
}
//
// addStatusNode()
//
function addStatusNode(el, str)
{
if (el.subtree != null && el.subtree.all.item("_fetch", 0) != null)
return;
// Show "fetching" message
var fetchNode = el.document.createElement("<DIV id=_fetch>");
var imageNode = el.document.createElement("<IMG align='absmiddle' border='0'>");
imageNode.src = element.getAttribute("systemimagespath") + "white.gif";
fetchNode.appendChild(imageNode);
var junctionNode = generateJunctionNode(null, 'L', "child");
fetchNode.appendChild(junctionNode);
addLinesAndWhitespace(fetchNode, el == element ? contentNode : el, junctionNode);
var textNode = el.document.createElement("<SPAN id=_tntext tabIndex=-1 style='display:inline; height=100%'>");
textNode.innerText = str;
textNode.className = "defaultstyle";
var defStyle;
if (el == element)
defStyle = g_styles["defaultstyle"] + ";" + element.getAttribute("defaultstyle");
else
defStyle = cascadeStyle(el, "defaultstyle");
textNode.style.cssText = defStyle;
fetchNode.appendChild(textNode);
if (el == element)
{
if (!g_bCreated)
{
// Create viewlink.
fetchNode.style.display = "block";
defaults.viewLink = fetchNode.document;
}
else
{
treeviewNode.appendChild(fetchNode);
}
}
else
{
if (el.subtree != null)
el.subtree.appendChild(fetchNode);
}
doVisualRefresh();
}
//
// databindNode()
//
// Databind to the given node's TreeNodeSrc & TreeNodeXsltSrc. This creates
// the node's children based on this binding, but does not affect the node
// itself.
//
// el: node for which we're databinding
//
function databindNode(el)
{
var src = el.getAttribute("TreeNodeSrc");
if (src == null)
return;
addStatusNode(el, L_strRetrievingNodes_Text);
el._bound = "binding";
var XsltSrc = el.getAttribute("TreeNodeXsltSrc");
var databindInfo = new Object();
databindInfo.el = el;
databindInfo.transform = null;
databindInfo.island = null;
databindInfo.src = src;
if (el == contentNode)
g_bNodesReady = false;
if (XsltSrc != null)
{
databindInfo.transform = element.document.all(XsltSrc);
if (databindInfo.transform == null)
{
// create our own data island for the transform
try
{
databindInfo.transform = new ActiveXObject("Msxml2.DOMDocument");
}
catch (e)
{
databindError(databindInfo, L_strMSXMLError_Text);
return;
}
databindInfo.transform.async = false;
if (!databindInfo.transform.loadXML(XsltSrc))
databindInfo.transform.load(XsltSrc);
}
else
databindInfo.transform = databindInfo.transform.XMLDocument;
}
databindInfo.island = element.document.all(src);
if (databindInfo.island == null)
{
// create our own data island
try
{
databindInfo.island = new ActiveXObject("Msxml2.DOMDocument");
}
catch (e)
{
databindError(databindInfo, L_strMSXMLError_Text);
return;
}
databindInfo.island.async = false;
g_pendingSyncBinds = g_pendingSyncBinds.concat(databindInfo);
if (g_bindTimer == -1)
g_bindTimer = window.setTimeout(syncBind, 10, "JScript");
}
else
finishDatabindingNode(databindInfo, true);
}
function syncBind()
{
// loop through pending synchronous databinds
while (g_pendingSyncBinds.length > 0)
{
var databindInfo = g_pendingSyncBinds[0];
// remove from array
g_pendingSyncBinds.splice(0, 1);
if (!databindInfo.island.loadXML(databindInfo.src))
{
databindInfo.island.async = true;
// add to our array of pending databinds
g_pendingBinds = g_pendingBinds.concat(databindInfo);
databindInfo.island.onreadystatechange = finishDatabindingNodeHandler;
databindInfo.island.load(databindInfo.src);
}
else
finishDatabindingNode(databindInfo, true);
}
g_bindTimer = -1;
}
function finishDatabindingNodeHandler()
{
// loop through pending databinds, resolving those which are complete
for (var i = 0; i < g_pendingBinds.length; i++)
{
if (g_pendingBinds[i].island.readyState == 1)
g_pendingBinds[i].b = true;
if (g_pendingBinds[i].island.readyState == 4 && g_pendingBinds[i].b == true)
{
var bindInfo = g_pendingBinds[i];
g_pendingBinds.splice(i, 1);
finishDatabindingNode(bindInfo, false);
i--;
}
}
}
function finishDatabindingNode(databindInfo, bReady)
{
if (bReady != true && databindInfo.island == null)
return;
if (databindInfo.island.xml == "" || (databindInfo.transform != null && databindInfo.transform.xml == ""))
{
var regexp = /%s/;
var str = "<B>" + L_strXMLError_Text + "</B>";
str = str.replace(regexp, databindInfo.el.getAttribute('TreeNodeSrc'));
databindError(databindInfo, str);
return;
}
// Databind to this data island
if (databindInfo.transform != null)
{
var html = databindInfo.island.transformNode(databindInfo.transform);
try
{
databindInfo.island = new ActiveXObject("Msxml2.DOMDocument");
}
catch (e)
{
databindError(databindInfo, L_strMSXMLError_Text);
return;
}
databindInfo.island.loadXML(html);
}
// Make sure the root is a TREENODES tag
var container = databindInfo.island.selectSingleNode("TREENODES");
if (container == null)
{
var strXslt = databindInfo.el.getAttribute("TreeNodeXsltSrc");
var strError = "<B>" + L_strInvalidXML_Text;
var regexp = /%s/;
strError = strError.replace(regexp, databindInfo.el.getAttribute('TreeNodeSrc'));
if (strXslt != null)
{
strError += L_strXSLTError_Text + "</B>";
strError = strError.replace(regexp, databindInfo.el.getAttribute('TreeNodeXsltSrc'));
}
else
strError += "</B>";
databindError(databindInfo, strError);
return;
}
var child = container.firstChild;
var html = "";
while (child != null)
{
if (child.nodeName.toLowerCase() == "treenode")
html += child.xml;
child = child.nextSibling;
}
databindInfo.el._bound = "complete";
// All nodes must have namespace inserted
html = html.replace(/(</?)(treenode)/gi, "$1" + element.scopeName + ":$2");
if (databindInfo.el == element)
{
contentNode.innerHTML = html;
g_bNodesReady = true;
tryToBuildTreeFromRoot();
}
else
{
databindInfo.el.innerHTML += html;
if (databindInfo.el.subtree != null)
{
buildTree(databindInfo.el, getNodeLevel(databindInfo.el));
if (databindInfo.el._isExpanding == true)
{
databindInfo.el.removeAttribute("_isExpanding");
finishNodePlusMinusClick(databindInfo.el);
}
else
{
reselectNode(databindInfo.el);
}
}
}
doVisualRefresh();
var evt = element.document.createEventObject();
if (databindInfo.el == element)
evt.treeNodeIndex = null;
else
evt.treeNodeIndex = getNodeIndex(databindInfo.el);
evt.reason = 0;
_tvevtNodeBound.fire(evt);
}
//
// databindError()
//
// Report an error during databinding
//
function databindError(databindInfo, strError)
{
var fetch;
var event = createEventObject();
if (databindInfo.el == element)
event.treeNodeIndex = null;
else
event.treeNodeIndex = getNodeIndex(databindInfo.el);
event.reason = 2;
_tvevtNodeBound.fire(event);
if (databindInfo.el == element)
fetch = defaults.viewLink.all.item("_fetch", 0);
else
fetch = databindInfo.el.subtree.all.item("_fetch", 0);
if (fetch != null)
{
var tntext = fetch.all.item("_tntext", 0);
tntext.innerHTML = strError;
}
}
//
// databindTypes()
//
// Bind the tree for TreeNodeTypes
//
function databindTypes()
{
var src = element.getAttribute("TreeNodeTypeSrc");
if (src == null)
return;
g_bTypesReady = false;
g_typeIsland = element.document.all(src);
if (g_typeIsland == null)
{
// create our own data island
try
{
g_typeIsland = new ActiveXObject("Msxml2.DOMDocument");
}
catch (e)
{
databindError(databindInfo, L_strMSXMLError_Text);
return;
}
g_typeIsland.async = false;
if (!g_typeIsland.loadXML(src))
{
g_typeIsland.async = true;
g_typeIsland.onreadystatechange = finishDatabindingTypes;
g_typeIsland.load(src);
}
else
finishDatabindingTypes();
}
}
function finishDatabindingTypes()
{
if (g_typeIsland.readyState != 4)
return;
if (g_typeIsland.xml == "")
{
databindTypesError();
return;
}
// Make sure the root is a TREENODETYPES tag
var container = g_typeIsland.selectSingleNode("TREENODETYPES");
if (container == null)
{
databindTypesError();
return;
}
var child = container.firstChild;
var html = "";
while (child != null)
{
if (child.nodeName.toLowerCase() == "treenodetype")
html += child.xml;
child = child.nextSibling;
}
// All nodetypes must have namespace inserted
html = html.replace(/(</?)(treenodetype)/gi, "$1" + element.scopeName + ":$2");
g_typesNode = element.document.createElement("DIV");
g_typesNode.innerHTML = html;
element.nodeTypes = g_typesNode.children.tags("TREENODETYPE");
verifyTypeValues();
g_bTypesReady = true;
var evt = element.document.createEventObject();
evt.reason = 0;
g_bInTypesBoundEvent = true;
_tvevtNodeTypesBound.fire(evt);
g_bInTypesBoundEvent = false;
tryToBuildTreeFromRoot();
}
//
// databindTypesError()
//
function databindTypesError()
{
var event = createEventObject();
event.reason = 2;
g_bInTypesBoundEvent = true;
_tvevtNodeTypesBound.fire(event);
g_bInTypesBoundEvent = false;
g_typesNode = element.document.createElement("DIV");
element.nodeTypes = g_typesNode.children.tags("TREENODETYPE");
g_bTypesReady=true;
}
//
// verifyExpandableValue()
//
// Verifies that the value is one of the acceptable Expandable values
//
// value: value to verify
//
function verifyExpandableValue(value)
{
var lval = value.toLowerCase();
switch (lval)
{
case "auto":
case "checkonce":
case "always":
return true;
default:
return false;
break;
}
}
//
// verifyBooleanAttribute()
//
// Verifies that the attribute's value is boolean, or a text equivalent. If the latter,
// the attribute is converted to the corresponding boolean. If the value is not a boolean
// equivalent or null, the attribute is set to false.
//
// node: node on which to verify attribute
// att: attribute to verify
//
// returns: true if the value was a boolean or equivalent
// false otherwise
//
function verifyBooleanAttribute(node, att)
{
var value = node.getAttribute(att);
if (value == null)
return false;
var boolval = makeBoolean(value);
if (value == boolval)
return true;
node.setAttribute(att, boolval == null ? false : boolval, 0);
return (boolval != null);
}
function makeBoolean(value)
{
if (value == true || value == false)
return value;
if (value == null)
return null;
var lval = value.toLowerCase();
switch (lval)
{
case "true":
return true;
case "false":
return false;
default:
return null;
}
}
//
// verifyTypeValues()
//
// converts the value of each TreeNodeType's Type attribute to lower case, and
// string booleans to true booleans
//
function verifyTypeValues()
{
var len = element.nodeTypes.length;
for (var i = 0; i < len; i++)
{
var str = element.nodeTypes[i].getAttribute("type");
if (str != null)
element.nodeTypes[i].setAttribute("type", str.toLowerCase(), 0);
verifyBooleanAttribute(element.nodeTypes[i], "expanded");
verifyBooleanAttribute(element.nodeTypes[i], "checkBox");
}
}
//
// getNodeTypeHtml()
//
// Get the HTML source for the nodeTypes collection
//
function getNodeTypeHtml()
{
var html = "";
for (var i = 0; i < element.nodeTypes.length; i++)
{
html += element.nodeTypes[i].outerHTML;
}
return html;
}
//---------------------------------------------------
//
// Public OM
//
//---------------------------------------------------
//
// TreeView properties
//
function getDefaultStyle()
{
return prop_defaultStyle;
}
function setDefaultStyle(value)
{
if (prop_defaultStyle == value)
return;
if (typeof value == "string")
{
prop_defaultStyle = value;
if (g_bCreated)
{
modifyNodesByType(contentNode, null, "defaultstyle")
_tvpropDefaultStyle.fireChange();
}
}
}
function getHoverStyle()
{
return prop_hoverStyle;
}
function setHoverStyle(value)
{
if (prop_hoverStyle == value)
return;
if (typeof value == "string")
{
prop_hoverStyle = value;
if (g_bCreated)
{
modifyNodesByType(contentNode, null, "hoverstyle")
_tvpropHoverStyle.fireChange();
}
}
}
function getSelectedStyle()
{
return prop_selectedStyle;
}
function setSelectedStyle(value)
{
if (prop_selectedStyle == value)
return;
if (typeof value == "string")
{
prop_selectedStyle = value;
if (g_bCreated)
{
modifyNodesByType(contentNode, null, "selectedstyle")
_tvpropSelectedStyle.fireChange();
}
}
}
function getChildType()
{
return prop_childType;
}
function setChildType(value)
{
if (prop_childType != value)
{
prop_childType = value;
if (g_bCreated)
{
var col = contentNode.children.tags("treenode");
for (var i = 0; i < col.length; i++)
buildTree(col[i], 0);
_tvpropChildType.fireChange();
}
}
}
function getImageUrl()
{
return prop_imageUrl;
}
function setImageUrl(value)
{
if (prop_imageUrl != value)
{
prop_imageUrl = value;
if (g_bCreated)
{
modifyNodesInheritingFromRoot(contentNode, "imageurl", value);
_tvpropImageUrl.fireChange();
}
}
}
function getSelectedImageUrl()
{
return prop_selectedImageUrl;
}
function setSelectedImageUrl(value)
{
if (prop_selectedImageUrl != value)
{
prop_selectedImageUrl = value;
if (g_bCreated)
{
modifyNodesInheritingFromRoot(contentNode, "selectedimageurl", value);
_tvpropSelectedImageUrl.fireChange();
}
}
}
function getExpandedImageUrl()
{
return prop_expandedImageUrl;
}
function setExpandedImageUrl(value)
{
if (prop_expandedImageUrl != value)
{
prop_expandedImageUrl = value;
if (g_bCreated)
{
modifyNodesInheritingFromRoot(contentNode, "expandedimageurl", value);
_tvpropExpandedImageUrl.fireChange();
}
}
}
function getTarget()
{
return prop_target;
}
function setTarget(value)
{
if (prop_target != value)
{
prop_target = value;
if (g_bCreated)
{
modifyNodesInheritingFromRoot(contentNode, "target", value);
_tvpropTarget.fireChange();
}
}
}
function getTreeNodeSrc()
{
return prop_treeNodeSrc;
}
function setTreeNodeSrc(value)
{
if (prop_treeNodeSrc != value)
{
prop_treeNodeSrc = value;
_tvpropTreeNodeSrc.fireChange();
}
}
function getTreeNodeXsltSrc()
{
return prop_treeNodeXsltSrc;
}
function setTreeNodeXsltSrc(value)
{
if (prop_treeNodeXsltSrc != value)
{
prop_treeNodeXsltSrc = value;
_tvpropTreeNodeXsltSrc.fireChange();
}
}
function getSelectExpands()
{
return prop_selectExpands;
}
function setSelectExpands(value)
{
var boolval = makeBoolean(value)
if (boolval != null && boolval != prop_selectExpands)
{
prop_selectExpands = value;
if (g_bCreated)
_tvpropSelectExpands.fireChange();
}
}
function getExpandLevel()
{
return prop_expandLevel;
}
function setExpandLevel(value)
{
if (prop_expandLevel != value)
{
prop_expandLevel = value - 0;
if (g_bCreated)
{
expandNodes(contentNode, value);
_tvpropExpandLevel.fireChange();
}
}
}
function getAutoSelect()
{
return prop_autoSelect;
}
function setAutoSelect(value)
{
var boolval = makeBoolean(value)
if (boolval != null && boolval != prop_autoSelect)
{
prop_autoSelect = value;
if (g_bCreated)
_tvpropAutoSelect.fireChange();
}
}
function getTreeNodeTypeSrc()
{
return prop_treeNodeTypeSrc;
}
function setTreeNodeTypeSrc(value)
{
if (prop_treeNodeTypeSrc != value)
{
prop_treeNodeTypeSrc = value;
if (g_bCreated)
{
_tvpropTreeNodeTypeSrc.fireChange();
}
}
}
function getShowLines()
{
return prop_showLines;
}
function setShowLines(value)
{
var boolval = makeBoolean(value);
if (prop_showLines != boolval && boolval != null)
{
prop_showLines = boolval;
if (g_bCreated)
{
buildTreeFromRoot();
_tvpropShowLines.fireChange();
}
}
}
function getShowPlus()
{
return prop_showPlus;
}
function setShowPlus(value)
{
var boolval = makeBoolean(value);
if (prop_showPlus != boolval && boolval != null)
{
prop_showPlus = boolval;
if (g_bCreated)
{
modifyNodesByType(contentNode, null, "_showplus");
_tvpropShowPlus.fireChange();
}
}
}
function getShowToolTip()
{
return prop_showToolTip;
}
function setShowToolTip(value)
{
var boolval = makeBoolean(value);
if (prop_showToolTip != boolval && boolval != null)
{
prop_showToolTip = boolval;
if (g_bCreated)
{
_tvpropShowToolTip.fireChange();
}
}
}
function getIndent()
{
return prop_indent;
}
function setIndent(value)
{
if (prop_indent != value)
{
if (typeof value == "string")
{
var i = parseInt(value);
if (i == NaN)
return;
else
prop_indent = i;
}
else if (typeof value == "number")
prop_indent = value;
else
return;
if (g_bCreated)
{
if (getShowLines() != true)
modifyNodesByType(contentNode, null, "_indent");
_tvpropShowLines.fireChange();
}
}
}
function getSelectedNodeIndex()
{
return prop_selectedNodeIndex;
}
function setSelectedNodeIndex(value)
{
if (prop_selectedNodeIndex != value && typeof value == "string")
{
// validate format of string
if (value.length == 0)
return;
if (value.search(/[^0-9.]/) != -1) // a character other than a digit or .
return;
if (value[0] == '.') // mustn't begin with a .
return;
if (value.indexOf("..") != -1) // mustn't have two consecutive periods
return;
if (g_bCreated)
{
// does a node exist at this index?
var node = getNodeFromIndex(value);
if (node != null && node.subtree != null)
{
selectNode(node);
_tvpropSelectedNodeIndex.fireChange();
}
else
{
// Set index to 0, if possible
if (value != "0")
selectedNodeIndex = "0";
else
prop_selectedNodeIndex = "";
}
}
else
prop_selectedNodeIndex = value;
}
}
function getSystemImagesPath()
{
return prop_systemImagesPath;
}
function setSystemImagesPath(value)
{
if (prop_systemImagesPath != value && typeof value == "string")
{
prop_systemImagesPath = value;
if (g_bCreated)
{
buildTreeFromRoot();
_tvpropSystemImagesPath.fireChange();
}
}
}
//
// expandNodes()
//
// Recursively expand all nodes from root down through the given
// number of levels
//
// root: starting node
// level: number of levels to expand
//
function expandNodes(root, level)
{
if (root != contentNode)
{
var exp = root.getAttribute("expanded");
if (exp != true)
{
doNodePlusMinusClick(root);
}
}
if (level > 0)
{
var col = root.children.tags("treenode");
for (var i = 0; i < col.length; i++)
{
expandNodes(col[i], level - 1);
}
}
}
//
// databind()
//
// Force the tree to rebind
//
function databind()
{
if (g_typesNode == null)
g_typesNode = element.document.createElement("DIV");
g_typesNode.innerHTML = getNodeTypeHtml();
element.nodeTypes = g_typesNode.children.tags("TREENODETYPE");
treeviewNode.subtree.removeNode(true);
contentNode.innerText = "";
databindNode(element);
}
//
// getTreeNodeType()
//
// Retrieves a public object representing the treenodetype at the requested index or
// with the requested name
//
// key: string name or integer index of type to get
//
function getTreeNodeType(key)
{
var tnt = null;
var len = element.nodeTypes.length;
if (typeof key == "number")
{
if (key >= 0 && key < len)
tnt = element.nodeTypes[key];
}
else
{
for (var i = 0; i < len; i++)
{
var temp = element.nodeTypes[i];
if (temp.getAttribute("Type") == key)
{
tnt = temp;
break;
}
}
}
if (tnt != null)
return private_getTreeNodeType(tnt);
else
return null;
}
//
// createTreeNodeType()
//
// Create a new treenodetype in the ether
//
function createTreeNodeType()
{
var realtnt = element.document.createElement("treenodetype");
return private_getTreeNodeType(realtnt);
}
//
// private_getTreeNodeType()
//
// Returns a public object representing the given treenodetype
//
// tnt: treenodetype for which to generate a public object
//
function private_getTreeNodeType(tnt)
{
var obj = new Object();
obj.addTo = function(tree)
{
if (tree.nodeTypes == null || tree.nodeTypes.length == 0)
{
g_typesNode = element.document.createElement("DIV");
g_typesNode.appendChild(tnt);
tree.nodeTypes = g_typesNode.children.tags("TREENODETYPE");
}
else
{
g_typesNode.appendChild(tnt);
tree.nodeTypes = g_typesNode.children.tags("TREENODETYPE");
}
modifyNodesByType(contentNode, tnt.getAttribute("type"), "type");
}
obj.remove = function(bRedraw) { private_removeTreeNodeType(tnt, bRedraw); };
obj.getAttribute = function(name) { return private_getNodeTypeAttribute(tnt, name); };
obj.setAttribute = function(name, value) { private_setNodeTypeAttribute(tnt, name, value); };
return obj;
}
//
// addTreeNodeType()
//
// Add the given treenodetype to the end of the tree's nodetypes collection
//
// tnt: treenodetype to add
//
function addTreeNodeType(tnt)
{
tnt.addTo(element);
}
//
// private_removeTreeNodeType()
//
// Remove the treenodetype from the tree. Note that redrawing nodes of this type
// requires a full tree traversal, which can be very slow.
//
// tnt: type to remove
// bRedraw: Redraw nodes of this type?
//
function private_removeTreeNodeType(tnt, bRedraw)
{
var name = tnt.getAttribute("Type");
tnt.removeNode(false);
if (bRedraw != false)
{
// Because indices may have shifted, we'll need to rebuild the tree.
modifyNodesByType(contentNode, null, "type");
}
else
{
// uncache the nodetypeIndex of all nodes
modifyNodesByType(contentNode, null, "_nodetypeIndex");
}
}
//
// modifyNodesByType()
//
// Rebuild all nodes of the given type
//
// node: current node
// type: name of type; if null, rebuild all nodes
// att: attribute of node being modified (in lower case)
//
function modifyNodesByType(node, type, att)
{
if (node != contentNode)
{
if (node.subtree == null) // if the node hasn't been built yet, don't go any further
return;
if (type == null || getNodeAttribute(node, "Type") == type)
{
modifyNode(node, att, null, type);
if (att == "type" || att == "childtype")
return; // these atts already handle the node's children
}
}
var col = node.children.tags("treenode");
for (var i = 0; i < col.length; i++)
{
modifyNodesByType(col[i], type, att);
}
}
//
// modifyNodesInheritingFromRoot()
//
// Searches the tree from the given node downward for all nodes which
// inherited the given attribute from the root, rebuilding the appropriate
// aspect of such nodes. This function is called when an inheritable attribute
// is changed on the TreeView itself.
//
// root: starting node of search
// att: attribute to check
// value: new value of attribute
//
function modifyNodesInheritingFromRoot(root, att, value)
{
if (root != contentNode)
{
if (root.subtree == null)
return;
if (inheritsFromRoot(root, att))
{
modifyNode(root, att, value, null);
if (att == "type" || att == "childtype")
return; // these atts already handle the node's children
}
}
var col = root.children.tags("treenode");
for (var i = 0; i < col.length; i++)
{
modifyNodesInheritingFromRoot(col[i], att, value);
}
}
//
// inheritsFromRoot()
//
// Determines if the given node inherits its att value from the TreeView
//
// node: node to check
// att: att to check
//
function inheritsFromRoot(node, att)
{
// try the node
if (node.getAttribute(att) != null)
return false;
// try the node's type
if (getNodeTypeAttribute(node, att) != null)
return false;
return true;
}
//
// private_getNodeTypeAttribute()
//
// Gets the given attribute from the given node
//
// tnt: treenodetype from which to retrieve attribute
// name: name of attribute to retrieve
//
function private_getNodeTypeAttribute(tnt, name)
{
return tnt.getAttribute(name.toLowerCase());
}
//
// private_setNodeTypeAttribute()
//
// Sets the given attribute on the given node
//
// tnt: treenodetype on which to set attribute
// name: name of attribute to set
// value: value of attribute to set
//
function private_setNodeTypeAttribute(tnt, name, value)
{
var lname = name.toLowerCase();
if (lname == "outerhtml")
return;
var old = tnt.getAttribute(name, value);
tnt.setAttribute(name, value, 0);
if (tnt.parentElement == null)
return;
// Update display tree if display-related change was made
switch (lname)
{
case "text":
case "innertext":
break;
case "expandable":
if (verifyExpandableValue(value) == true)
modifyNodesByType(contentNode, tnt.getAttribute("type"), lname);
else
tnt.setAttribute(name, old, 0);
break;
default:
modifyNodesByType(contentNode, tnt.getAttribute("type"), lname);
break;
}
}
//
// createTreeNode()
//
// Creates a new treenode in the ether
//
function createTreeNode()
{
var realNode = element.document.createElement("treenode");
return private_getTreeNode(realNode);
}
//
// getTreeNode()
//
// Retrieves a public object representing the node at the requested index
//
// index: dot-separated index string of node to retrieve
//
function getTreeNode(index)
{
var node = getNodeFromIndex(index);
if (node == null)
return null;
return private_getTreeNode(node);
}
//
// private_getTreeNode()
//
// Retrieves a public object representing the given node
//
// node: treenode to munge into public object
//
function private_getTreeNode(node)
{
var obj = new Object();
obj.addAt = function(index, newnode)
{
if (newnode._real != null)
private_addAt(node, index, newnode._real);
else
{
var temp = private_getTreeNode(node);
temp._real = node;
newnode.addTo(index, temp);
}
};
obj.addTo = function(index, parent)
{
if (parent._real != null)
private_addAt(parent._real, index, node);
else
{
var temp = private_getTreeNode(node);
temp._real = node;
parent.addAt(index, temp);
}
};
obj.add = function(newnode) { obj.addAt(node.children.tags("treenode").length, newnode); };
obj.remove = function() { private_remove(node); };
obj.databind = function() { private_databind(node); };
obj.getAttribute = function(name) { return private_getAttribute(node, name); };
obj.setAttribute = function(name, value) { private_setAttribute(node, name, value); };
obj._real = null;
obj.findAttribute = function(name) { return getNodeAttribute(node, name); };
obj.getNodeIndex = function()
{
var index = getNodeIndex(node);
if (index == "")
return null;
return index;
};
obj.getParent = function()
{
if (node.parentElement == null || node.parentElement.tagName.toLowerCase() != "treenode")
return null;
else
return private_getTreeNode(node.parentElement);
};
obj.getChildren = function() { return private_getChildren(node); };
return obj;
}
//
// addAt()
//
// Add a root node at the given index. TreeView method.
//
// index: integer index at which to add the node
// node: node to add
//
function addAt(index, node)
{
node.addTo(index, private_getTreeNode(contentNode));
}
//
// add()
//
// Add a root node to the end of the tree. TreeView method.
//
// node: node to add
//
function add(node)
{
node.addTo(contentNode.children.tags("treenode").length, private_getTreeNode(contentNode));
}
//
// private_addAt()
//
// Implements addition of a node to the tree
//
// parent: node to add a child to
// index: integer index at which to add a child node
// child: node to add
//
function private_addAt(parent, index, child)
{
if (child.parentElement != null)
return;
var col = parent.children.tags("treenode");
var iCount = col.length;
if (index < 0 || index > iCount)
return;
var selectedNode = getNodeFromIndex(selectedNodeIndex);
//
// add node to tree
//
if (index == iCount)
parent.appendChild(child);
else
{
col[index].insertAdjacentElement("beforeBegin", child);
}
//
// adjust sibling indices
//
child.sibIndex = index;
for (var i = index; i <= iCount; i++)
col[i].sibIndex = i;
//
// adjust selected index if necessary
//
if (selectedNode != null && index < selectedNode.sibIndex)
prop_selectedNodeIndex = getNodeIndex(selectedNode);
//
// update display tree if the node is now part of a treeview and its parent or previous sibling is expanded
//
var p = parent;
while (p != null && p.tagName.toLowerCase() == "treenode")
p = p.parentElement;
if (p != null && p.tagName.toLowerCase() != "treeview")
return;
if (parent.getAttribute("expanded") == true || parent == contentNode)
{
// build added node's display tree
var disptree = buildTree(child, getNodeLevel(child));
if (index == iCount)
{
if (parent.subtree == null)
{
if (parent == contentNode)
tryToBuildTreeFromRoot();
else
parent.subtree = disptree;
}
else
{
if (parent == contentNode)
treeviewNode.subtree.appendChild(disptree);
else
parent.subtree.appendChild(disptree);
}
}
else
col[index + 1].subtree.insertAdjacentElement("beforeBegin", disptree);
if (element.getAttribute("showlines") != false && index > 0 && col[index - 1].getAttribute("expanded") == true)
{
// rebuild previous sibling's display tree, to show correct lines.
buildTree(col[index - 1], getNodeLevel(col[index - 1]));
// if that tree contains the selected node, redisplay the selection
if (selectedNodeIndex.indexOf(getNodeIndex(col[index - 1])) == 0)
reselectNode(getNodeFromIndex(selectedNodeIndex));
}
}
//
// Update the junctions of the nodes immediately above and below this node, if needed
//
if (iCount == 0) // parent's first child
{
if (parent != contentNode)
replaceJunctionNode(parent);
}
else if (index == iCount) // new last sibling
replaceJunctionNode(col[index - 1]);
else if (index == 0)
replaceJunctionNode(col[1]); // new first sibling
if (selectedNode != null)
prop_selectedNodeIndex = getNodeIndex(selectedNode);
else
selectNode(child);
}
//
// private_remove()
//
// Remove the given node from the tree
//
// node: node to remove
//
function private_remove(node)
{
if (node.parentElement == null)
return null;
var parent = node.parentElement;
var col = parent.children.tags("treenode");
var iCount = col.length;
var sibindex = node.sibIndex;
var selectedNode = getNodeFromIndex(selectedNodeIndex);
var nodeIndex = getNodeIndex(node);
node.subtree.removeNode(true);
node.subtree = null;
node.removeNode(true);
node.removeAttribute("sibIndex");
if (node.getAttribute("expanded") == false)
node._buildChildren = true; // set expando so we'll rebuild the node's children if the node is added again and then expanded
//
// adjust junctions and whitespace/lines
//
if (iCount == 1)
replaceJunctionNode(parent);
else if (sibindex != 0 && sibindex == iCount - 1)
buildTree(col[sibindex - 1], getNodeLevel(col[sibindex - 1])); // rebuild previous sibling and its subtree
else if (sibindex == 0 && parent.tagName.toLowerCase() != "treenode")
replaceJunctionNode(col[0]); // new first root
//
// adjust sibling indices
//
for (var i = sibindex; i < col.length; i++)
col[i].sibIndex = i;
//
// adjust selectedNodeIndex
//
if (node == selectedNode ||
(selectedNodeIndex.length > nodeIndex.length && selectedNodeIndex.substr(0, nodeIndex.length + 1) == nodeIndex + "."))
{
// deleted the selected node or an ancestor of the selected node.
var temp = prop_selectedNodeIndex;
prop_selectedNodeIndex = "";
if (iCount - 1 > sibindex)
selectNode(col[sibindex]); // the node now at the same index as the deleted node
else if (iCount > 1 && sibindex > 0)
selectNode(col[sibindex - 1]); // the first sibling prior to the deleted node
else if (nodeIndex != "0")
selectNode(parent); // the parent of the deleted node
else
{
prop_selectedNodeIndex = temp;
selectNode(null);
}
}
else
{
// adjust the selected node index to reflect new tree structure
prop_selectedNodeIndex = "";
selectNode(selectedNode);
}
return node;
}
//
// private_databind()
//
// node: node to bind
//
function private_databind(node)
{
// If the selection is within the subtree under the node being databound,
// then select the node.
var dataNodeIndex = getNodeIndex(node);
if ((dataNodeIndex != selectedNodeIndex) && (selectedNodeIndex.indexOf(dataNodeIndex) == 0))
selectNode(node);
// delete all treenode content
col = node.children.tags("treenode");
for (var i = col.length - 1; i >= 0; i--)
{
if (col[i].subtree != null)
col[i].subtree.removeNode(true);
col[i].removeNode(true);
}
node._bound = null;
databindNode(node);
}
//
// private_getAttribute()
//
// Gets the given attribute from the given node
//
// node: node from which to retrieve attribute
// name: name of attribute to retrieve
//
function private_getAttribute(node, name)
{
var lcName = name.toLowerCase();
var ret = node.getAttribute(lcName);
if (ret == null && lcName == "text")
{
var textnode = node.subtree.all.item("_tntext", 0);
ret = textnode.innerText;
}
return ret;
}
//
// private_setAttribute()
//
// Sets the given attribute on the given node
//
// node: node on which to set attribute
// name: name of attribute to set
// value: value of attribute to set
//
function private_setAttribute(node, name, value)
{
var lname = name.toLowerCase();
if (lname == "outerhtml")
return;
var old = node.getAttribute(name, value);
node.setAttribute(name, value, 0);
if (node.parentElement == null)
return;
if (node.subtree == null)
return;
modifyNode(node, lname, value, old);
}
//
// getChildren()
//
// public entry point for private_getChildren()
//
function getChildren()
{
return private_getChildren(contentNode);
}
//
// private_getChildren()
//
// Returns an array of public treenode objects representing the top-level children of the given root
//
// root: DOM object parent from which to get children
//
function private_getChildren(root)
{
var col = root.children.tags("treenode");
var objArray = new Array(col.length);
for (var iNode = 0; iNode < col.length; iNode++)
{
objArray[iNode] = private_getTreeNode(col[iNode]);
}
return objArray;
}
//
// modifyNode()
//
// Rebuild display node as required by change to given attribute
//
// node: node to modify
// lname: name of changed attribute, in lower case
// value: new value of attribute
// old: old value of attribute
//
function modifyNode(node, lname, value, old)
{
// Update display tree if display-related change was made
switch (lname)
{
case "defaultstyle":
case "hoverstyle":
case "selectedstyle":
case "style":
var oItem = node.subtree.all.item("_tntext", 0);
var stylename = oItem.className;
if (stylename == "")
stylename = "defaultstyle";
SetAnchorClass(oItem, stylename); // reapply current style
if (!g_bFocus && (stylename == "selectedstyle"))
{
blurFilter(oItem);
}
break;
case "text":
case "innertext":
case "innerhtml":
var tntext = node.subtree.all.item("_tntext", 0);
var newText = generateTextNode(node);
tntext.replaceNode(newText);
var accessAnchor = node.subtree.all.item("_tnaccess", 0);
if (accessAnchor.getAttribute("title") != "")
accessAnchor.title = newText.innerText + " : " + L_strToolTip_Text;
reselectNode(node);
break;
case "imageurl":
if (selectedNodeIndex == getNodeIndex(node))
{
if (getNodeAttribute(node, "selectedImageUrl") == null)
changeIcon(node, lname);
}
else if (node.getAttribute("Expanded") == true)
changeIcon(node, "expandedimageurl"); // let changeIcon function figure things out
else
changeIcon(node, lname);
break;
case "selectedimageurl":
if (selectedNodeIndex == getNodeIndex(node))
changeIcon(node, lname);
break;
case "expandedimageurl":
if (node.getAttribute("Expanded") == true && (selectedNodeIndex != getNodeIndex(node) || getNodeAttribute(node, "selectedImageUrl") == null))
changeIcon(node, lname);
break;
case "type":
// the new type could contain a new childType, so rebuild the whole subtree
buildTree(node, getNodeLevel(node));
var temp = getNodeFromIndex(selectedNodeIndex);
prop_selectedNodeIndex = "";
selectNode(temp);
break;
case "childtype":
var col = node.children.tags("treenode");
for (i = 0; i < col.length; i++)
{
buildTree(col[i], getNodeLevel(col[i]));
var temp = getNodeFromIndex(selectedNodeIndex);
prop_selectedNodeIndex = "";
selectNode(temp);
}
break;
case "target":
var accessnode = node.subtree.all("_tnaccess", 0);
accessnode.target = getNodeAttribute(node, lname);
accessnode.parentElement.target = accessnode.target;
break;
case "navigateurl":
var accessnode = node.subtree.all("_tnaccess", 0);
var url = getNodeAttribute(node, lname);
if (url == "" || url == null)
{
accessnode.removeAttribute("href");
accessnode.parentElement.removeAttribute("href");
if (url == "")
node.removeAttribute("navigateUrl");
}
else
{
accessnode.href = getNodeAttribute(node, lname);
accessnode.parentElement.href = accessnode.href;
}
break;
case "expandable":
if (verifyExpandableValue(value) == true)
replaceJunctionNode(node);
else
node.setAttribute(lname, old, 0);
break;
case "expanded":
if (verifyBooleanAttribute(node, lname) == false)
node.setAttribute(lname, old, 0);
else if (node.getAttribute(lname) != old)
{
node.setAttribute("expanded", !node.getAttribute("expanded"), 0);
doNodePlusMinusClick(node);
}
break;
case "checked":
if (verifyBooleanAttribute(node, lname) == false)
node.setAttribute(lname, old, 0);
else if (getNodeAttribute(node, "checkBox") == true && node.getAttribute(lname) != old)
{
var cb = node.subtree.all.item("_cb", 0);
cb.setAttribute("checked", node.getAttribute(lname), 0);
}
break;
case "checkbox":
if (verifyBooleanAttribute(node, lname) == false && node.getAttribute(lname) != null)
node.setAttribute(lname, old, 0);
else if (getNodeAttribute(node, "checkbox") == true)
{
if (old != true)
{
var jn = node.subtree.all("junction", 0);
if (jn)
{
var cb = createCheckBox(node);
jn.parentElement.insertAdjacentElement("afterEnd", cb);
}
}
}
else
{
var cb = node.subtree.all("_fcb", 0);
if (cb)
cb.removeNode(true);
}
break;
case "treenodesrc":
case "treenodexsltsrc":
if (value != null)
{
node.setAttribute("checkedExpandable", false, 0);
node._bound = null;
}
break;
case "_showplus": // not a real attribute-- back door for TreeView
replaceJunctionNode(node);
break;
case "_indent": // not a real attribute-- back door for TreeView
var strIndex = getNodeIndex(node);
if (strIndex.indexOf(".") != -1)
{
if (isRtl())
node.subtree.style.marginRight = prop_indent;
else
node.subtree.style.marginLeft = prop_indent;
}
break;
case "_nodetypeIndex": // not a real attribute-- back door for TreeView
node.nodetypeIndex = undefined;
node.inheritedType = undefined;
break;
}
}
//
// Cleans up the OnStop events left over from previous postbacks
//
function f_CleanupEvents()
{
var eventArray = window.__treeviewAttachedEvents;
if ((eventArray != null) && (eventArray[0]))
{
var newArray = new Array(false);
// First array element is the dirty bit
for (var i = 1; i < eventArray.length; i++)
{
if (element.document.all[eventArray[i][0]] == null)
{
element.document.detachEvent("onstop", eventArray[i][1]);
}
else
{
newArray = newArray.concat(new Array(eventArray[i]));
}
}
window.__treeviewAttachedEvents = newArray;
}
}
//
// Adds an OnStop event
//
function f_AddStopEvent()
{
var eventArray = window.__treeviewAttachedEvents;
if (eventArray == null)
{
eventArray = new Array(false);
}
element.document.attachEvent("onstop", onstop);
eventArray[0] = true;
entry = new Array(element.uniqueID, onstop);
window.__treeviewAttachedEvents = eventArray.concat(new Array(entry));
}
//
// Responds to onscroll
//
function onScroll()
{
setHiddenHelperValue();
}
//
// isRtl()
//
// true if we're rendering right to left; false otherwise
//
function isRtl()
{
if (element.currentStyle.direction.toLowerCase() == "rtl" || element.dir.toLowerCase() == "rtl")
return true;
else
return false;
}
//
// Visually refreshes the TreeView (workaround for IE 5.5 refresh bug)
//
function doVisualRefresh()
{
var display = element.style.display;
element.style.display = "none";
element.style.display = display;
}
</script>
本文解析了 Microsoft TreeView 控件的实现细节,包括事件处理、属性修改等关键功能,并探讨了如何通过 JavaScript 进行节点操作及继承属性检查。
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