/// <summary>
/// Evaluate JavaScript in specified window, and with specified scope.
/// Throws GeckoJavaScriptException on error.
/// </summary>
/// <param name="javascript">The javascript to run.</param>
/// <param name="window">The window to execuate javascript in. (ie. the global object)</param>
/// <param name="scope">object to use as scope.</param>
/// <returns>The return value of the script as a JsVal</returns>
public JsVal EvaluateScript(string javascript, nsISupports window, nsISupports scope)
{
string msg = String.Empty;
JsVal exceptionJsVal = default(JsVal);
IntPtr globalObject = ConvertCOMObjectToJSObject(window);
using (new JSAutoCompartment(ContextPointer, globalObject))
{
var old = SpiderMonkey.JS_SetErrorReporter(SpiderMonkey.JS_GetRuntime(ContextPointer),
(cx, message, report) =>
{
var exception = SpiderMonkey.JS_GetPendingException(ContextPointer);
if (exception != IntPtr.Zero)
{
exceptionJsVal = JsVal.FromPtr(exception);
}
msg = message;
});
try
{
var retJsVal = new JsVal();
bool ret;
// If not running in window scope.
if (window != scope)
{
var scopeJSVal = JsVal.FromPtr(ConvertCOMObjectToJSObject(scope));
if (!SpiderMonkey.JS_SetProperty(ContextPointer, globalObject, "__RequestedScope", scopeJSVal))
{
throw new GeckoException("Failed to set __RequestedScope Property.");
}
javascript = InsertReturnStatement(javascript);
string s = "(function() { " + javascript + " }).call(this.__RequestedScope)";
ret = SpiderMonkey.JS_EvaluateScript(ContextPointer, s, (uint)s.Length, "script", 1,
ref retJsVal);
}
else
{
ret = SpiderMonkey.JS_EvaluateScript(ContextPointer, javascript, (uint)javascript.Length,
"script", 1, ref retJsVal);
}
if (ret)
{
return(retJsVal);
}
msg += GetStackTrace(globalObject, exceptionJsVal);
throw new GeckoJavaScriptException(String.Format("JSError : {0}", msg));
}
finally
{
SpiderMonkey.JS_SetErrorReporter(SpiderMonkey.JS_GetRuntime(ContextPointer), old);
}
}
}
public JsVal EvaluateScript(string javaScript)
{
string msg = String.Empty;
var old = SpiderMonkey.JS_SetErrorReporter(_cx, (cx, message, report) => { msg = message; });
try
{
var jsValue = new JsVal();
var ret = SpiderMonkey.JS_EvaluateScript(_cx, PeekCompartmentScope(), javaScript, (uint)javaScript.Length, "script",
1, ref jsValue);
if (!ret)
{
throw new GeckoJavaScriptException(String.Format("JSError : {0}", msg));
}
return(jsValue);
}
finally
{
SpiderMonkey.JS_SetErrorReporter(_cx, old);
}
}
/// <summary>
/// Evaluate JavaScript in specified window.
/// Will throw a GeckoJavaScriptException if unable to convert window into a JsVal
/// </summary>
/// <param name="javascript">The javascript to run.</param>
/// <param name="window">The window to execuate javascript in.</param>
/// <returns>The return value of the script as a JsVal</returns>
public JsVal EvaluateScript(string javascript, nsIDOMWindow window)
{
string msg = String.Empty;
IntPtr globalObject = ConvertCOMObjectToJSObject((nsISupports)window);
using (new JSAutoCompartment(_cx, globalObject))
{
var old = SpiderMonkey.JS_SetErrorReporter(_cx, (cx, message, report) => { msg = message; });
try
{
var windowJsVal = new JsVal();
string jsScript = "this";
bool ret = SpiderMonkey.JS_EvaluateScript(_cx, globalObject, jsScript, (uint)jsScript.Length,
"script", 1, ref windowJsVal);
if (!ret)
{
throw new GeckoJavaScriptException(String.Format("JSError : {0}", msg));
}
if (GetComponentsObject().GetUtilsAttribute().IsXrayWrapper(ref windowJsVal))
{
windowJsVal = GetComponentsObject().GetUtilsAttribute().WaiveXrays(ref windowJsVal, _cx);
}
using (nsAStringBase b = new nsAString(javascript))
{
return(GetComponentsObject().GetUtilsAttribute().EvalInWindow(b, ref windowJsVal, _cx));
}
}
finally
{
SpiderMonkey.JS_SetErrorReporter(_cx, old);
}
}
}
