public static AreaTreeItem CreateInstance(AreaInfo areaInfo)
{
var item = new AreaTreeItem {
_areaInfo = areaInfo
};
return(item);
}
public static string GetScript(EAreaLoadingType loadingType, NameValueCollection additional)
{
var script = @"
<script language=""JavaScript"">
function getTreeLevel(e) {
var length = 0;
if (!isNull(e)){
if (e.tagName == 'TR') {
length = parseInt(e.getAttribute('treeItemLevel'));
}
}
return length;
}
function getTrElement(element){
if (isNull(element)) return;
for (element = element.parentNode;;){
if (element != null && element.tagName == 'TR'){
break;
}else{
element = element.parentNode;
}
}
return element;
}
function getImgClickableElementByTr(element){
if (isNull(element) || element.tagName != 'TR') return;
var img = null;
if (!isNull(element.childNodes)){
var imgCol = element.getElementsByTagName('IMG');
if (!isNull(imgCol)){
for (x=0;x<imgCol.length;x++){
if (!isNull(imgCol.item(x).getAttribute('isOpen'))){
img = imgCol.item(x);
break;
}
}
}
}
return img;
}
var weightedLink = null;
function fontWeightLink(element){
if (weightedLink != null)
{
weightedLink.style.fontWeight = 'normal';
}
element.style.fontWeight = 'bold';
weightedLink = element;
}
var completedNodeID = null;
function displayChildren(img){
if (isNull(img)) return;
var tr = getTrElement(img);
var isToOpen = img.getAttribute('isOpen') == 'false';
var isByAjax = img.getAttribute('isAjax') == 'true';
var nodeID = img.getAttribute('id');
if (!isNull(img) && img.getAttribute('isOpen') != null){
if (img.getAttribute('isOpen') == 'false'){
img.setAttribute('isOpen', 'true');
img.setAttribute('src', '{iconMinusUrl}');
}else{
img.setAttribute('isOpen', 'false');
img.setAttribute('src', '{iconPlusUrl}');
}
}
if (isToOpen && isByAjax)
{
var div = document.createElement('div');
div.innerHTML = ""<img align='absmiddle' border='0' src='{iconLoadingUrl}' /> 加载中，请稍候..."";
img.parentNode.appendChild(div);
$(div).addClass('loading');
loadingChannels(tr, img, div, nodeID);
}
else
{
var level = getTreeLevel(tr);
var collection = new Array();
var index = 0;
for ( var e = tr.nextSibling; !isNull(e) ; e = e.nextSibling) {
if (!isNull(e) && !isNull(e.tagName) && e.tagName == 'TR'){
var currentLevel = getTreeLevel(e);
if (currentLevel <= level) break;
if(e.style.display == '') {
e.style.display = 'none';
}else{
if (currentLevel != level + 1) continue;
e.style.display = '';
var imgClickable = getImgClickableElementByTr(e);
if (!isNull(imgClickable)){
if (!isNull(imgClickable.getAttribute('isOpen')) && imgClickable.getAttribute('isOpen') =='true'){
imgClickable.setAttribute('isOpen', 'false');
imgClickable.setAttribute('src', '{iconPlusUrl}');
collection[index] = imgClickable;
index++;
}
}
}
}
}
if (index > 0){
for (i=0;i<=index;i++){
displayChildren(collection[i]);
}
}
}
}
";
script += $@"
function loadingChannels(tr, img, div, nodeID){{
var url = '{AjaxSystemService.GetLoadingAreasUrl()}';
var pars = '{AjaxSystemService.GetLoadingAreasParameters(loadingType, additional)}&parentID=' + nodeID;
jQuery.post(url, pars, function(data, textStatus)
{{
$($.parseHTML(data)).insertAfter($(tr));
img.setAttribute('isAjax', 'false');
img.parentNode.removeChild(div);
}});
completedNodeID = nodeID;
}}
function loadingChannelsOnLoad(paths){{
if (paths && paths.length > 0){{
var nodeIDs = paths.split(',');
var nodeID = nodeIDs[0];
var img = $('#' + nodeID);
if (img.attr('isOpen') == 'false'){{
displayChildren(img[0]);
// if (completedNodeID && completedNodeID == nodeID){{
// if (paths.indexOf(',') != -1){{
// setTimeout(""loadingChannelsOnLoad("" + paths + "")"", 3000);
// }}
// }}
}}
}}
}}
</script>
";
var item = new AreaTreeItem();
script = script.Replace("{iconEmptyUrl}", item._iconEmptyUrl);
script = script.Replace("{iconFolderUrl}", item._iconFolderUrl);
script = script.Replace("{iconMinusUrl}", item._iconMinusUrl);
script = script.Replace("{iconPlusUrl}", item._iconPlusUrl);
script = script.Replace("{iconLoadingUrl}", SiteServerAssets.GetIconUrl("loading.gif"));
script = script.Replace("loadingChannels", "loadingChannels_Area");
script = script.Replace("displayChildren", "displayChildren_Area");
return(script);
}