private string GetRenderingScript(string instanceVarName, OpmlOutlines _outlines)
{
string script = "";
//First fetch any linked OPML files
//Only one level of link fetching is supported so
//no recursion
var expandedOutlines = new OpmlOutlines();
foreach (OpmlOutline item in _outlines)
{
if ((item.Type == "link"))
{
Opml linkedFeed = Opml.LoadFromUrl(item.XmlUrl);
if ((item.Category.StartsWith("Tab")))
{
expandedOutlines.Add(item);
foreach (OpmlOutline linkedOutline in linkedFeed.Outlines)
{
item.Outlines.Add(linkedOutline);
}
}
else
{
foreach (OpmlOutline linkedOutline in linkedFeed.Outlines)
{
expandedOutlines.Add(linkedOutline);
}
}
}
else
{
expandedOutlines.Add(item);
}
}
script = GetTabsScript(instanceVarName, expandedOutlines);
return(script);
}
protected override void OnLoad(EventArgs e)
{
var opmlFeed = new Opml();
string elementIdPrefix = ClientID;
string instanceVarName = elementIdPrefix + "_feedBrowser";
if (((String.IsNullOrEmpty(OpmlUrl)) && (String.IsNullOrEmpty(OpmlFile)) && (String.IsNullOrEmpty(OpmlText))))
{
opmlFeed = GetDefaultOpmlFeed();
}
else
{
if ((!String.IsNullOrEmpty(OpmlText)))
{
var opmlDoc = new XmlDocument();
opmlDoc.LoadXml("<?xml version=\"1.0\" encoding=\"utf-8\"?><opml version=\"2.0\"><head /><body>" + OpmlText + "</body></opml>");
opmlFeed = Opml.LoadFromXml(opmlDoc);
}
else if ((!String.IsNullOrEmpty(OpmlUrl)))
{
opmlFeed = Opml.LoadFromUrl(new Uri(OpmlUrl));
}
else
{
opmlFeed = Opml.LoadFromFile(OpmlFile);
}
}
var script = new StringBuilder();
string tabInstanceVarName = instanceVarName + "_tabs";
script.Append("var " + tabInstanceVarName + " = new DotNetNuke.UI.WebControls.TabStrip.Strip(\"" + tabInstanceVarName + "\");");
script.Append("var " + instanceVarName + " = new DotNetNuke.UI.WebControls.FeedBrowser.Browser(\"" + instanceVarName + "\"," + tabInstanceVarName + ");");
script.Append(tabInstanceVarName + ".setResourcesFolderUrl(\"" + ResourcesFolderUrl + "\");");
script.Append(instanceVarName + ".setResourcesFolderUrl(\"" + ResourcesFolderUrl + "\");");
script.Append(instanceVarName + ".setElementIdPrefix(\"" + elementIdPrefix + "\");");
if ((!String.IsNullOrEmpty(Theme)))
{
script.Append(instanceVarName + ".setTheme(\"" + Theme + "\");");
}
if ((!String.IsNullOrEmpty(RssProxyUrl)))
{
script.Append(instanceVarName + ".setRssProxyUrl(\"" + RssProxyUrl + "\");");
}
if ((!String.IsNullOrEmpty(DefaultTemplate)))
{
script.Append(instanceVarName + ".setDefaultTemplate(\"" + DefaultTemplate + "\");");
}
script.Append(instanceVarName + ".setAllowHtmlDescription(");
if ((AllowHtmlDescription))
{
script.Append("true");
}
else
{
script.Append("false");
}
script.Append(");");
string renderScript = GetRenderingScript(instanceVarName, opmlFeed.Outlines);
bool includeFallbackScript = false;
//Is there any OPML structure to render?
if ((String.IsNullOrEmpty(renderScript)))
{
includeFallbackScript = true;
script.Append(instanceVarName + ".setTabs(defaultFeedBrowser());");
}
else
{
//Javascript function that renders the OPML structure
script.Append("function " + instanceVarName + "customFeedBrowser() ");
script.Append("{");
script.Append(" var " + instanceVarName + "tabs = [];");
script.Append(" with (DotNetNuke.UI.WebControls.FeedBrowser) ");
script.Append(" {");
script.Append(renderScript);
script.Append(" }");
script.Append(" return(" + instanceVarName + "tabs);");
script.Append("} ");
script.Append(instanceVarName + ".setTabs(" + instanceVarName + "customFeedBrowser());");
}
//NK 11/25/08
//This code has a jQuery dependency so it can't be loaded using standard client script registration
//It must come later in the page which is why it is inline; also ClientScript buggy when used in webcontrols
if (!Page.ClientScript.IsClientScriptBlockRegistered("FBHostUrl"))
{
Page.ClientScript.RegisterClientScriptBlock(GetType(),
"FBHostUrl",
"<script type=\"text/javascript\">var $dnn = new Object(); $dnn.hostUrl = '" + Globals.ResolveUrl("~/") + "';</script>");
output.Append("<script type=\"text/javascript\" src=\"" + Globals.ResolveUrl("~/Resources/Shared/scripts/init.js") + "\"></script>");
output.Append("<script type=\"text/javascript\" src=\"" + Globals.ResolveUrl("~/Resources/Shared/scripts/DotNetNukeAjaxShared.js") + "\"></script>");
output.Append("<script type=\"text/javascript\" src=\"" + Globals.ResolveUrl("~/Resources/TabStrip/scripts/tabstrip.js") + "\"></script>");
output.Append("<script type=\"text/javascript\" src=\"" + Globals.ResolveUrl("~/Resources/FeedBrowser/scripts/feedbrowser.js") + "\"></script>");
output.Append("<script type=\"text/javascript\" src=\"" + Globals.ResolveUrl("~/Resources/FeedBrowser/scripts/templates.js") + "\"></script>");
if ((includeFallbackScript))
{
output.Append("<script type=\"text/javascript\" src=\"" + Globals.ResolveUrl("~/Resources/FeedBrowser/scripts/fallback.js") + "\"></script>");
}
if ((!String.IsNullOrEmpty(StyleSheetUrl)))
{
script.Append(tabInstanceVarName + ".setStyleSheetUrl(\"" + StyleSheetUrl + "\");");
script.Append(instanceVarName + ".setStyleSheetUrl(\"" + StyleSheetUrl + "\");");
}
}
script.Append(instanceVarName + ".render();");
output.Append("<script type=\"text/javascript\">" + script + "</script>");
base.OnLoad(e);
}