internal static IntPtr GetJSContextForDomWindow(nsIDOMWindow window)
{
IntPtr context = IntPtr.Zero;
nsIDOMEventTarget eventTarget = window.GetWindowRootAttribute();
try
{
context = eventTarget.GetJSContextForEventHandlers();
if (context == IntPtr.Zero)
{
IntPtr pUnk = Marshal.GetIUnknownForObject(window);
Marshal.Release(pUnk);
if (!_windowContexts.TryGetValue(pUnk, out context))
{
context = IntPtr.Zero;
IntPtr cx;
IntPtr iterp = IntPtr.Zero;
IntPtr rt = Runtime;
while ((cx = SpiderMonkey.JS_ContextIterator(rt, ref iterp)) != IntPtr.Zero)
{
IntPtr pGlobal = SpiderMonkey.DefaultObjectForContextOrNull(cx);
if (pGlobal != IntPtr.Zero)
{
using (var auto = new AutoJSContext(cx))
{
using (ComPtr <nsISupports> global = auto.GetGlobalNsObject())
{
if (global != null)
{
var domWindow = Xpcom.QueryInterface <nsIDOMWindow>(global.Instance);
if (domWindow != null)
{
try
{
IntPtr pUnkTest = Marshal.GetIUnknownForObject(domWindow.GetWindowAttribute());
Marshal.Release(pUnkTest);
if (pUnk == pUnkTest)
{
_windowContexts.Add(pUnk, cx);
context = cx;
break;
}
}
finally
{
Xpcom.FreeComObject(ref domWindow);
}
}
}
}
}
}
}
}
}
}
finally
{
if (eventTarget != null)
{
Xpcom.FreeComObject(ref eventTarget);
}
}
return(context);
}
