public ComPtr <nsISupports> GetGlobalNsObject()
{
IntPtr globalObject = SpiderMonkey.CurrentGlobalOrNull(_cx);
if (globalObject != IntPtr.Zero)
{
Guid guid = typeof(nsISupports).GUID;
IntPtr pUnk = IntPtr.Zero;
try
{
pUnk = Xpcom.XPConnect.Instance.WrapJS(_cx, globalObject, ref guid);
object comObj = Xpcom.GetObjectForIUnknown(pUnk);
try
{
return(Xpcom.QueryInterface <nsISupports>(comObj).AsComPtr());
}
finally
{
Xpcom.FreeComObject(ref comObj);
}
}
finally
{
if (pUnk != IntPtr.Zero)
{
Marshal.Release(pUnk);
}
}
}
return(null);
}
private IntPtr GetGlobalObject()
{
IntPtr globalObject = SpiderMonkey.CurrentGlobalOrNull(_cx);
if (globalObject == IntPtr.Zero)
{
throw new ObjectDisposedException(this.GetType().Name);
}
return(globalObject);
}
/// <summary>
/// Helper method which attempts to find the global object in a Context.
/// </summary>
/// <returns>the Global object ptr or Null/Zero ptr if not found.</returns>
private IntPtr GetGlobalFromContext(IntPtr context)
{
IntPtr globalObject = SpiderMonkey.CurrentGlobalOrNull(context);
if (globalObject == IntPtr.Zero)
{
globalObject = SpiderMonkey.DefaultObjectForContextOrNull(context);
if (globalObject == IntPtr.Zero)
{
return(IntPtr.Zero);
}
}
return(globalObject);
}
/// <summary>
/// Create a AutoJSContext using the SafeJSContext.
/// If context is IntPtr.Zero use the SafeJSContext
/// </summary>
/// <param name="context"></param>
public AutoJSContext(IntPtr context)
{
// We can't just use nsIXPConnect::GetSafeJSContext(); because its marked as [noxpcom, nostdcall]
// TODO: Enhance IDL compiler to not generate methods for noxpcom, nostdcall tagged methods.
if (context == IntPtr.Zero)
{
context = GlobalJSContextHolder.SafeJSContext;
}
IntPtr globalObject = SpiderMonkey.CurrentGlobalOrNull(context);
if (globalObject == IntPtr.Zero)
{
globalObject = SpiderMonkey.DefaultObjectForContextOrNull(context);
if (globalObject == IntPtr.Zero)
{
throw new InvalidOperationException("JSContext don't store their default compartment object on the cx.");
}
_defaultCompartment = new JSAutoCompartment(context, globalObject);
}
_cx = context;
}
