/** @param jsContext the Context */
public Value makeValueFromJsval(Context jsContext, Object value) {
if (value == Undefined.instance) {
return new Value();
}
if (value instanceof JavaObject) {
Value returnVal = new Value();
int refId = ((JavaObject) value).getRefId();
returnVal.setJavaObject(new JavaObjectRef(refId));
return returnVal;
}
if (value instanceof Scriptable) {
if (value instanceof ScriptableObject) {
/*
* HACK: check for native types like NativeString. NativeString is
* package-protected. What other types do we need to check?
*/
ScriptableObject scriptableValue = (ScriptableObject) value;
String className = scriptableValue.getClassName();
if (className.equals("String")) {
return new Value(scriptableValue.toString());
}
}
Integer refId = jsObjectToRef.get(value);
if (refId == null) {
refId = nextRefId++;
jsObjectToRef.put((Scriptable) value, refId);
refToJsObject.put(refId, (Scriptable) value);
}
Value returnVal = new Value();
returnVal.setJsObject(new JsObjectRef(refId));
return returnVal;
}
return new Value(value);
}
/*
* Returning java objects works. No need to return NativeNumber, NativeString,
* NativeBoolean, or Undefined.
*/
Object makeJsvalFromValue(Context jsContext, Value value) {
switch (value.getType()) {
case NULL:
return null;
case BOOLEAN:
if (value.getBoolean()) {
return Boolean.TRUE;
}
return Boolean.FALSE;
case BYTE:
return new Byte(value.getByte());
case CHAR:
return new Character(value.getChar());
case SHORT:
return new Short(value.getShort());
case INT:
return new Integer(value.getInt());
case FLOAT:
return new Float(value.getFloat());
case DOUBLE:
return new Double(value.getDouble());
case STRING:
return value.getString();
case JAVA_OBJECT:
JavaObjectRef javaRef = value.getJavaObject();
return JavaObject.getOrCreateJavaObject(javaRef, sessionData, jsContext);
case JS_OBJECT:
Scriptable scriptable = refToJsObject.get(value.getJsObject().getRefid());
assert scriptable != null;
return scriptable;
case UNDEFINED:
return Undefined.instance;
}
return null;
}
@SuppressWarnings("unchecked")
@Override
public ExceptionOrReturnValue invoke(
BrowserChannelClient channel, Value thisObj, String methodName, Value[] args) {
if (logger.isLoggable(TreeLogger.DEBUG)) {
logger.log(
TreeLogger.DEBUG,
"INVOKE: thisObj: " + thisObj + ", methodName: " + methodName + ", args: " + args);
}
/*
* 1. lookup functions by name. 2. Find context and scope. 3. Convert
* thisObject to ScriptableObject 4. Convert args 5. Get return value
*/
Context jsContext = Context.getCurrentContext();
ScriptableObject jsThis = null;
if (thisObj.getType() == ValueType.NULL) {
jsThis = window;
} else {
Object obj = makeJsvalFromValue(jsContext, thisObj);
if (obj instanceof ScriptableObject) {
jsThis = (ScriptableObject) obj;
} else if (obj instanceof SimpleScriptableProxy<?>) {
jsThis = ((SimpleScriptableProxy<SimpleScriptable>) obj).getDelegee();
} else {
logger.log(
TreeLogger.ERROR,
"Unable to convert "
+ obj
+ " to either "
+ " ScriptableObject or SimpleScriptableProxy");
return new ExceptionOrReturnValue(true, new Value(null));
}
}
Object functionObject = ScriptableObject.getProperty(window, methodName);
if (functionObject == ScriptableObject.NOT_FOUND) {
logger.log(
TreeLogger.ERROR,
"function "
+ methodName
+ " NOT FOUND, thisObj: "
+ jsThis
+ ", methodName: "
+ methodName);
// TODO: see if this maps to QUIT
return new ExceptionOrReturnValue(true, new Value(null));
}
Function jsFunction = (Function) functionObject;
if (logger.isLoggable(TreeLogger.SPAM)) {
logger.log(TreeLogger.SPAM, "INVOKE: jsFunction: " + jsFunction);
}
Object jsArgs[] = new Object[args.length];
for (int i = 0; i < args.length; i++) {
jsArgs[i] = makeJsvalFromValue(jsContext, args[i]);
}
Object result = null;
try {
if (args.length == 1 && methodName.indexOf(REPLACE_METHOD_SIGNATURE) != -1) {
// getUrl() is not visible
String currentUrl = window.jsxGet_location().toString();
currentUrl = getUrlBeforeHash(currentUrl);
String newUrl = getUrlBeforeHash((String) args[0].getValue());
if (!newUrl.equals(currentUrl)) {
WebWindow webWindow = window.getWebWindow();
do {
webWindow.getJobManager().removeAllJobs();
webWindow = webWindow.getParentWindow();
} while (webWindow != webWindow.getTopWindow());
}
}
result = jsEngine.callFunction(htmlPage, jsFunction, jsContext, window, jsThis, jsArgs);
} catch (JavaScriptException ex) {
if (logger.isLoggable(TreeLogger.INFO)) {
logger.log(
TreeLogger.INFO,
"INVOKE: JavaScriptException "
+ ex
+ ", message: "
+ ex.getMessage()
+ " when invoking "
+ methodName);
}
return new ExceptionOrReturnValue(true, makeValueFromJsval(jsContext, ex.getValue()));
} catch (Exception ex) {
if (logger.isLoggable(TreeLogger.INFO)) {
logger.log(
TreeLogger.INFO,
"INVOKE: exception "
+ ex
+ ", message: "
+ ex.getMessage()
+ " when invoking "
+ methodName);
}
return new ExceptionOrReturnValue(true, makeValueFromJsval(jsContext, Undefined.instance));
}
if (logger.isLoggable(TreeLogger.INFO)) {
logger.log(TreeLogger.INFO, "INVOKE: result: " + result + " of jsFunction: " + jsFunction);
}
return new ExceptionOrReturnValue(false, makeValueFromJsval(jsContext, result));
}