private static IntPtr GetContextByName(string contextName)
{
Xpcom.AssertCorrectThread();
IntPtr rt = Runtime;
IntPtr iterp = IntPtr.Zero;
IntPtr cx;
while ((cx = SpiderMonkey.JS_ContextIterator(rt, ref iterp)) != IntPtr.Zero)
{
IntPtr global = SpiderMonkey.JS_GetGlobalObject(cx);
if (global != IntPtr.Zero)
{
IntPtr classp = SpiderMonkey.JS_GetClass(global);
// get class name
if (classp != IntPtr.Zero)
{
string className = Marshal.PtrToStringAnsi(Marshal.ReadIntPtr(classp));
if (className == contextName)
{
return(cx);
}
}
}
}
return(IntPtr.Zero);
}
public static IntPtr GetJSContextForDomWindow(nsIDOMWindow window)
{
IntPtr context = window.GetWindowRootAttribute().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.JS_GetGlobalObject(cx);
if (pGlobal != IntPtr.Zero)
{
using (var auto = new AutoJSContext(cx))
{
nsISupports global = auto.GetGlobalNsObject();
if (global != null)
{
var domWindow = Xpcom.QueryInterface <nsIDOMWindow>(global);
if (domWindow != null)
{
try
{
IntPtr pUnkTest = Marshal.GetIUnknownForObject(domWindow.GetWindowAttribute());
Marshal.Release(pUnkTest);
if (pUnk == pUnkTest)
{
_windowContexts.Add(pUnk, cx);
context = cx;
break;
}
}
finally
{
Marshal.ReleaseComObject(domWindow);
}
}
}
}
}
}
}
}
return(context);
}
public nsISupports GetGlobalNsObject()
{
IntPtr globalObject = SpiderMonkey.JS_GetGlobalObject(_cx);
if (globalObject != IntPtr.Zero)
{
Guid guid = typeof(nsISupports).GUID;
IntPtr pUnk = IntPtr.Zero;
try
{
pUnk = XPConnect.WrapJS(_cx, globalObject, ref guid);
return((nsISupports)Xpcom.GetObjectForIUnknown(pUnk));
}
finally
{
if (pUnk != IntPtr.Zero)
{
Marshal.Release(pUnk);
}
}
}
return(null);
}
