Java Utililty Methods Javascript Mozilla Library

List of utility methods to do Javascript Mozilla Library

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Description

The list of methods to do Javascript Mozilla Library are organized into topic(s).

Method

NativeArraycreateNativeArray(int length, Scriptable scope)
create Native Array 
NativeArray array = new NativeArray(length);
ScriptRuntime.setObjectProtoAndParent(array, scope);
return array;
SecurityControllercreateSecurityController()
create Security Controller 
return new PolicySecurityController();
ScriptableensureValid(Object obj)
Return the object, or null if it is "not found" or undefined. 
if ((obj == null) || Scriptable.NOT_FOUND.equals(obj) || Context.getUndefinedValue().equals(obj)) {
    return null;
return (Scriptable) obj;
ContextenterContext()
Associate a context with the current thread. 
Context cx = Context.enter();
cx.setLanguageVersion(Context.VERSION_1_8);
return cx;
booleanevaluateJSExpression(String expr, Context cx, Scriptable scope)
evaluate JS Expression 
boolean evalResult = true;
if ((null == expr) || (expr.isEmpty())) {
    return evalResult;
try {
    Object result = cx.evaluateString(scope, expr, "policyExpression", 1, null);
    if (result != null && Context.toString(result).equals("true")) {
        evalResult = true;
...
Objectfrom(Scriptable scriptable)
from 
String className = scriptable.getClassName();
if (className.equals("Date")) {
    Object time = ScriptableObject.callMethod(scriptable, "getTime", null);
    if (time instanceof Number)
        return new Date(((Number) time).longValue());
} else if (className.equals("String")) {
    return scriptable.toString();
return null;
FunctionfunctionArg(Object[] args, int pos, boolean required)
Return the argument at "pos" as a Function, and throw an exception if "required" and the list is too short. 
if (required) {
    ensureArg(args, pos);
if (pos < args.length) {
    if (args[pos] instanceof Function) {
        return (Function) args[pos];
    } else {
        if (required) {
...
Object[]getArray(Scriptable scope, NativeArray array)
get Array 
Object[] v = new Object[(int) array.getLength()];
for (int i = 0; i < v.length; i++)
    v[i] = array.get(i, array);
return v;
ScriptablegetClassOrObjectProto(Scriptable scope, String className)
Return a class prototype, or the object prototype if the class is not defined. 
Scriptable proto = ScriptableObject.getClassPrototype(scope, className);
if (proto == null) {
    proto = ScriptableObject.getObjectPrototype(scope);
return proto;
booleangetDirectColRefExpr(Node refNode, boolean mode)
if the Node is row Node, return true 
assert (refNode.getType() == Token.GETPROP || refNode.getType() == Token.GETELEM);
Node rowName = refNode.getFirstChild();
assert (rowName != null);
if (rowName.getType() != Token.NAME)
    return false;
String str = rowName.getString();
assert (str != null);
if (mode && !str.equals(STRING_ROW))
...