private static int GetScriptPriority(ScriptInjectOrder scriptPosition)
{
switch (scriptPosition)
{
case ScriptInjectOrder.a_BeforejQuery:
return(4);
case ScriptInjectOrder.b_BeforeDnnXml:
return(14);
case ScriptInjectOrder.c_BeforeDomPositioning:
return(29);
case ScriptInjectOrder.d_BeforeDnnControls:
return(39);
default:
return(100);
}
}
/// <summary>
/// Inject a js Library reference into the page
/// </summary>
/// <param name="page">The page object of the page to add the script reference to</param>
/// <param name="name">Unique name for the script</param>
/// <param name="lib">Url to the script library (can be relative/absolute)</param>
/// <param name="inHeader">True if to go in the page header, false if to go into the page body</param>
/// <param name="scriptPosition">Enumerated position for calculating where to place the script. Works for DNN 6.1 and later only, ignored in earlier versions</param>
public static void InjectJsLibrary(System.Web.UI.Page page, string name, string lib, bool inHeader, ScriptInjectOrder scriptPosition)
{
var major = default(int);
var minor = default(int);
var build = default(int);
var revision = default(int);
var allowInHeader = false;
var useDotNetNukeWebClient = false;
var dnnWebClientOk = false;
if (DNNUtilities.SafeDNNVersion(major, minor, revision, build))
{
switch (major)
{
case 4:
case 5:
allowInHeader = true;
break;
default:
//6.0 and above
if (minor >= 1)
{
//6.1 and abpve
if (revision < 1)
{
//6.1.0 - work with change in order that means no placement of scripts in header
allowInHeader = false;
useDotNetNukeWebClient = true;
}
else
{
//6.1.1 and above - use client dependency framework
useDotNetNukeWebClient = true;
}
}
else
{
//6.0
allowInHeader = true;
}
break;
}
}
if (useDotNetNukeWebClient)
{
//use the dotnetnuke web client methods
var priority = GetScriptPriority(scriptPosition);
//get the imbibe type
var imbibe = Type.GetType("DotNetNuke.Web.Client.ClientResourceManagement.ClientResourceManager, DotNetNuke.Web.Client");
if (imbibe != null)
{
//create arrays of both types and values for the parameters, in readiness for the reflection call
var paramTypes = new Type[4];
var paramValues = new object[4];
paramTypes[0] = typeof(System.Web.UI.Page);
paramValues[0] = page;
paramTypes[1] = typeof(string);
paramValues[1] = lib;
paramTypes[2] = typeof(int);
paramValues[2] = priority;
paramTypes[3] = typeof(string);
if (inHeader && allowInHeader)
{
paramValues[3] = "PageHeaderProvider";
}
else
{
paramValues[3] = "DnnBodyProvider";
}
//call the method to register the script via reflection
var registerScriptMethod = imbibe.GetMethod("RegisterScript", paramTypes);
if (registerScriptMethod != null)
{
registerScriptMethod.Invoke(null, paramValues);
//worked OK
dnnWebClientOk = true;
}
}
}
if (!useDotNetNukeWebClient || dnnWebClientOk == false)
{
//earlier versions or failed with reflection call, inject manually
if (inHeader && allowInHeader)
{
if (page.Header.FindControl(name) == null)
{
var jsLib = new System.Web.UI.HtmlControls.HtmlGenericControl("script");
jsLib.Attributes.Add("src", lib);
jsLib.Attributes.Add("type", "text/javascript");
jsLib.ID = name;
page.Header.Controls.Add(jsLib);
}
}
else
{
//register a script block - doesn't go in the header
if (page.ClientScript != null)
{
page.ClientScript.RegisterClientScriptInclude(name, lib);
}
}
}
}