Exemplo n.º 1
0
static ALWAYS_INLINE JSValue *tryGetAndCallProperty(ExecState *exec, const JSObject *object, const Identifier &propertyName) {
  JSValue *v = object->get(exec, propertyName);
  if (v->isObject()) {
    JSObject *o = static_cast<JSObject*>(v);
    if (o->implementsCall()) { // spec says "not primitive type" but ...
      JSObject *thisObj = const_cast<JSObject*>(object);
      JSValue *def = o->call(exec, thisObj, List::empty());
      JSType defType = def->type();
      ASSERT(defType != GetterSetterType);
      if (defType != ObjectType)
        return def;
    }
  }
  return NULL;
}
JSValue* JSHTMLDocument::open(ExecState* exec, const List& args)
{
    // For compatibility with other browsers, pass open calls with more than 2 parameters to the window.
    if (args.size() > 2) {
        Frame* frame = static_cast<HTMLDocument*>(impl())->frame();
        if (frame) {
            Window* window = Window::retrieveWindow(frame);
            if (window) {
                JSObject* functionObject = window->get(exec, "open")->getObject();
                if (!functionObject || !functionObject->implementsCall())
                    return throwError(exec, TypeError);
                return functionObject->call(exec, window, args);
            }
        }
        return jsUndefined();
    }

    // In the case of two parameters or fewer, do a normal document open.
    static_cast<HTMLDocument*>(impl())->open();
    return jsUndefined();
}
Exemplo n.º 3
0
bool _NPN_InvokeDefault(NPP, NPObject* o, const NPVariant* args, uint32_t argCount, NPVariant* result)
{
    if (o->_class == NPScriptObjectClass) {
        JavaScriptObject* obj = (JavaScriptObject*)o; 
        if (!_isSafeScript(obj))
            return false;        
        
        VOID_TO_NPVARIANT(*result);
        
        // Lookup the function object.
        RootObject* rootObject = obj->rootObject;
        if (!rootObject || !rootObject->isValid())
            return false;
        
        ExecState* exec = rootObject->interpreter()->globalExec();
        JSLock lock;
        
        // Call the function object.
        JSObject *funcImp = static_cast<JSObject*>(obj->imp);
        if (!funcImp->implementsCall())
            return false;
        
        List argList = listFromVariantArgs(exec, args, argCount, rootObject);
        rootObject->interpreter()->startTimeoutCheck();
        JSValue *resultV = funcImp->call (exec, funcImp, argList);
        rootObject->interpreter()->stopTimeoutCheck();

        // Convert and return the result of the function call.
        convertValueToNPVariant(exec, resultV, result);
        return true;        
    }

    if (o->_class->invokeDefault)
        return o->_class->invokeDefault(o, args, argCount, result);    
    VOID_TO_NPVARIANT(*result);
    return true;
}
Exemplo n.º 4
0
JSValue *FunctionProtoFunc::callAsFunction(ExecState *exec, JSObject *thisObj, const List &args)
{
    JSValue *result = NULL;

    switch (id) {
    case ToString:
        if (!thisObj || !thisObj->inherits(&InternalFunctionImp::info)) {
#ifndef NDEBUG
            fprintf(stderr, "attempted toString() call on null or non-function object\n");
#endif
            return throwError(exec, TypeError);
        }
        if (thisObj->inherits(&FunctionImp::info)) {
            return jsString(static_cast<FunctionImp *>(thisObj)->toSource());
        } else if (thisObj->inherits(&InternalFunctionImp::info) &&
                   !static_cast<InternalFunctionImp *>(thisObj)->functionName().isNull()) {
            result = jsString("\nfunction " + static_cast<InternalFunctionImp *>(thisObj)->functionName().ustring() + "() {\n"
                              "    [native code]\n}\n");
        } else {
            result = jsString("[function]");
        }
        break;
    case Apply: {
        JSValue *thisArg = args[0];
        JSValue *argArray = args[1];
        JSObject *func = thisObj;

        if (!func->implementsCall()) {
            return throwError(exec, TypeError);
        }

        JSObject *applyThis;
        if (thisArg->isUndefinedOrNull()) {
            applyThis = exec->dynamicInterpreter()->globalObject();
        } else {
            applyThis = thisArg->toObject(exec);
        }

        List applyArgs;
        if (!argArray->isUndefinedOrNull()) {
            if (argArray->isObject() &&
                    (static_cast<JSObject *>(argArray)->inherits(&ArrayInstance::info) ||
                     static_cast<JSObject *>(argArray)->inherits(&Arguments::info))) {

                JSObject *argArrayObj = static_cast<JSObject *>(argArray);
                unsigned int length = argArrayObj->get(exec, exec->propertyNames().length)->toUInt32(exec);
                for (unsigned int i = 0; i < length; i++) {
                    applyArgs.append(argArrayObj->get(exec, i));
                }
            } else {
                return throwError(exec, TypeError);
            }
        }
        result = func->call(exec, applyThis, applyArgs);
    }
    break;
    case Call: {
        JSValue *thisArg = args[0];
        JSObject *func = thisObj;

        if (!func->implementsCall()) {
            return throwError(exec, TypeError);
        }

        JSObject *callThis;
        if (thisArg->isUndefinedOrNull()) {
            callThis = exec->dynamicInterpreter()->globalObject();
        } else {
            callThis = thisArg->toObject(exec);
        }

        result = func->call(exec, callThis, args.copyTail());
    }
    break;
    case Bind: { //ECMA Edition 5.1r6 - 15.3.4.5
        JSObject *target(thisObj);
        if (!target->implementsCall()) {
            return throwError(exec, TypeError, "object is not callable");
        }

        List newArgs;
        for (int i = 1; i < args.size(); ++i) {
            newArgs.append(args[i]);
        }

        JSObject *boundThis = 0;

        // As call does not accept JSValue(undefined/null),
        // do it like in call and use the global object
        if (args[0]->isUndefinedOrNull()) {
            boundThis = exec->dynamicInterpreter()->globalObject();
        } else {
            boundThis = args[0]->toObject(exec);
        }

        BoundFunction *bfunc = new BoundFunction(exec, target, boundThis, newArgs);

        unsigned length;
        if (target->inherits(&FunctionImp::info)) {
            double L = target->get(exec, exec->propertyNames().length)->getNumber() - newArgs.size();
            length = (unsigned)std::max<int>((int)L, 0);
        } else {
            length = 0;
        }
        bfunc->put(exec, exec->propertyNames().length, jsNumber(length), ReadOnly | DontEnum | DontDelete);

        JSObject *thrower = new Thrower(TypeError);
        PropertyDescriptor callerDesc;

        GetterSetterImp *gs = new GetterSetterImp();
        gs->setGetter(thrower);
        gs->setSetter(thrower);

        callerDesc.setPropertyDescriptorValues(exec, gs, DontEnum | DontDelete);
        bfunc->defineOwnProperty(exec, exec->propertyNames().caller, callerDesc, false);

        PropertyDescriptor argumentsDesc;
        argumentsDesc.setPropertyDescriptorValues(exec, gs, DontEnum | DontDelete);
        bfunc->defineOwnProperty(exec, exec->propertyNames().arguments, argumentsDesc, false);

        return bfunc;
    }
    break;
    }

    return result;
}
// ECMA 15.4.4
JSValue* ArrayProtoFunc::callAsFunction(ExecState* exec, JSObject* thisObj, const List& args)
{
  unsigned length = thisObj->get(exec, exec->propertyNames().length)->toUInt32(exec);

  JSValue *result = 0; // work around gcc 4.0 bug in uninitialized variable warning
  
  switch (id) {
  case ToLocaleString:
  case ToString:

    if (!thisObj->inherits(&ArrayInstance::info))
      return throwError(exec, TypeError);

    // fall through
  case Join: {
    static HashSet<JSObject*> visitedElems;
    if (visitedElems.contains(thisObj))
        return jsString("");
    UString separator = ",";
    UString str = "";

    visitedElems.add(thisObj);
    if (id == Join && !args[0]->isUndefined())
        separator = args[0]->toString(exec);
    for (unsigned int k = 0; k < length; k++) {
        if (k >= 1)
            str += separator;
        if (str.isNull()) {
            JSObject *error = Error::create(exec, GeneralError, "Out of memory");
            exec->setException(error);
            break;
        }

        JSValue* element = thisObj->get(exec, k);
        if (element->isUndefinedOrNull())
            continue;

        bool fallback = false;
        if (id == ToLocaleString) {
            JSObject* o = element->toObject(exec);
            JSValue* conversionFunction = o->get(exec, exec->propertyNames().toLocaleString);
            if (conversionFunction->isObject() && static_cast<JSObject*>(conversionFunction)->implementsCall())
                str += static_cast<JSObject*>(conversionFunction)->call(exec, o, List())->toString(exec);
            else
                // try toString() fallback
                fallback = true;
        }

        if (id == ToString || id == Join || fallback)
            str += element->toString(exec);

        if (str.isNull()) {
            JSObject *error = Error::create(exec, GeneralError, "Out of memory");
            exec->setException(error);
        }

        if (exec->hadException())
            break;
    }
    visitedElems.remove(thisObj);
    result = jsString(str);
    break;
  }
  case Concat: {
    JSObject *arr = static_cast<JSObject *>(exec->lexicalInterpreter()->builtinArray()->construct(exec,List::empty()));
    int n = 0;
    JSValue *curArg = thisObj;
    JSObject *curObj = static_cast<JSObject *>(thisObj);
    ListIterator it = args.begin();
    for (;;) {
      if (curArg->isObject() &&
          curObj->inherits(&ArrayInstance::info)) {
        unsigned int k = 0;
        // Older versions tried to optimize out getting the length of thisObj
        // by checking for n != 0, but that doesn't work if thisObj is an empty array.
        length = curObj->get(exec, exec->propertyNames().length)->toUInt32(exec);
        while (k < length) {
          if (JSValue *v = getProperty(exec, curObj, k))
            arr->put(exec, n, v);
          n++;
          k++;
        }
      } else {
        arr->put(exec, n, curArg);
        n++;
      }
      if (it == args.end())
        break;
      curArg = *it;
      curObj = static_cast<JSObject *>(it++); // may be 0
    }
    arr->put(exec, exec->propertyNames().length, jsNumber(n), DontEnum | DontDelete);

    result = arr;
    break;
  }
  case Pop:{
    if (length == 0) {
      thisObj->put(exec, exec->propertyNames().length, jsNumber(length), DontEnum | DontDelete);
      result = jsUndefined();
    } else {
      result = thisObj->get(exec, length - 1);
      thisObj->put(exec, exec->propertyNames().length, jsNumber(length - 1), DontEnum | DontDelete);
    }
    break;
  }
  case Push: {
    for (int n = 0; n < args.size(); n++)
      thisObj->put(exec, length + n, args[n]);
    length += args.size();
    thisObj->put(exec, exec->propertyNames().length, jsNumber(length), DontEnum | DontDelete);
    result = jsNumber(length);
    break;
  }
  case Reverse: {

    unsigned int middle = length / 2;

    for (unsigned int k = 0; k < middle; k++) {
      unsigned lk1 = length - k - 1;
      JSValue *obj2 = getProperty(exec, thisObj, lk1);
      JSValue *obj = getProperty(exec, thisObj, k);

      if (obj2) 
        thisObj->put(exec, k, obj2);
      else
        thisObj->deleteProperty(exec, k);

      if (obj)
        thisObj->put(exec, lk1, obj);
      else
        thisObj->deleteProperty(exec, lk1);
    }
    result = thisObj;
    break;
  }
  case Shift: {
    if (length == 0) {
      thisObj->put(exec, exec->propertyNames().length, jsNumber(length), DontEnum | DontDelete);
      result = jsUndefined();
    } else {
      result = thisObj->get(exec, 0);
      for(unsigned int k = 1; k < length; k++) {
        if (JSValue *obj = getProperty(exec, thisObj, k))
          thisObj->put(exec, k-1, obj);
        else
          thisObj->deleteProperty(exec, k-1);
      }
      thisObj->deleteProperty(exec, length - 1);
      thisObj->put(exec, exec->propertyNames().length, jsNumber(length - 1), DontEnum | DontDelete);
    }
    break;
  }
  case Slice: {
    // http://developer.netscape.com/docs/manuals/js/client/jsref/array.htm#1193713 or 15.4.4.10

    // We return a new array
    JSObject *resObj = static_cast<JSObject *>(exec->lexicalInterpreter()->builtinArray()->construct(exec,List::empty()));
    result = resObj;
    double begin = 0;
    if (!args[0]->isUndefined()) {
        begin = args[0]->toInteger(exec);
        if (begin >= 0) { // false for NaN
            if (begin > length)
                begin = length;
        } else {
            begin += length;
            if (!(begin >= 0)) // true for NaN
                begin = 0;
        }
    }
    double end = length;
    if (!args[1]->isUndefined()) {
      end = args[1]->toInteger(exec);
      if (end < 0) { // false for NaN
        end += length;
        if (end < 0)
          end = 0;
      } else {
        if (!(end <= length)) // true for NaN
          end = length;
      }
    }

    //printf( "Slicing from %d to %d \n", begin, end );
    int n = 0;
    int b = static_cast<int>(begin);
    int e = static_cast<int>(end);
    for(int k = b; k < e; k++, n++) {
      if (JSValue *v = getProperty(exec, thisObj, k))
        resObj->put(exec, n, v);
    }
    resObj->put(exec, exec->propertyNames().length, jsNumber(n), DontEnum | DontDelete);
    break;
  }
  case Sort:{
#if 0
    printf("KJS Array::Sort length=%d\n", length);
    for ( unsigned int i = 0 ; i<length ; ++i )
      printf("KJS Array::Sort: %d: %s\n", i, thisObj->get(exec, i)->toString(exec).ascii() );
#endif
    JSObject *sortFunction = NULL;
    if (!args[0]->isUndefined())
      {
        sortFunction = args[0]->toObject(exec);
        if (!sortFunction->implementsCall())
          sortFunction = NULL;
      }
    
    if (thisObj->classInfo() == &ArrayInstance::info) {
      if (sortFunction)
        ((ArrayInstance *)thisObj)->sort(exec, sortFunction);
      else
        ((ArrayInstance *)thisObj)->sort(exec);
      result = thisObj;
      break;
    }

    if (length == 0) {
      thisObj->put(exec, exec->propertyNames().length, jsNumber(0), DontEnum | DontDelete);
      result = thisObj;
      break;
    }

    // "Min" sort. Not the fastest, but definitely less code than heapsort
    // or quicksort, and much less swapping than bubblesort/insertionsort.
    for ( unsigned int i = 0 ; i<length-1 ; ++i )
      {
        JSValue *iObj = thisObj->get(exec,i);
        unsigned int themin = i;
        JSValue *minObj = iObj;
        for ( unsigned int j = i+1 ; j<length ; ++j )
          {
            JSValue *jObj = thisObj->get(exec,j);
            double cmp;
            if (jObj->isUndefined()) {
              cmp = 1; // don't check minObj because there's no need to differentiate == (0) from > (1)
            } else if (minObj->isUndefined()) {
              cmp = -1;
            } else if (sortFunction) {
                List l;
                l.append(jObj);
                l.append(minObj);
                cmp = sortFunction->call(exec, exec->dynamicInterpreter()->globalObject(), l)->toNumber(exec);
            } else {
              cmp = (jObj->toString(exec) < minObj->toString(exec)) ? -1 : 1;
            }
            if ( cmp < 0 )
              {
                themin = j;
                minObj = jObj;
              }
          }
        // Swap themin and i
        if ( themin > i )
          {
            //printf("KJS Array::Sort: swapping %d and %d\n", i, themin );
            thisObj->put( exec, i, minObj );
            thisObj->put( exec, themin, iObj );
          }
      }
#if 0
    printf("KJS Array::Sort -- Resulting array:\n");
    for ( unsigned int i = 0 ; i<length ; ++i )
      printf("KJS Array::Sort: %d: %s\n", i, thisObj->get(exec, i)->toString(exec).ascii() );
#endif
    result = thisObj;
    break;
  }
  case Splice: {
    // 15.4.4.12 - oh boy this is huge
    JSObject *resObj = static_cast<JSObject *>(exec->lexicalInterpreter()->builtinArray()->construct(exec,List::empty()));
    result = resObj;
    int begin = args[0]->toUInt32(exec);
    if ( begin < 0 )
      begin = maxInt( begin + length, 0 );
    else
      begin = minInt( begin, length );
    unsigned int deleteCount = minInt( maxInt( args[1]->toUInt32(exec), 0 ), length - begin );

    //printf( "Splicing from %d, deleteCount=%d \n", begin, deleteCount );
    for(unsigned int k = 0; k < deleteCount; k++) {
      if (JSValue *v = getProperty(exec, thisObj, k+begin))
        resObj->put(exec, k, v);
    }
    resObj->put(exec, exec->propertyNames().length, jsNumber(deleteCount), DontEnum | DontDelete);

    unsigned int additionalArgs = maxInt( args.size() - 2, 0 );
    if ( additionalArgs != deleteCount )
    {
      if ( additionalArgs < deleteCount )
      {
        for ( unsigned int k = begin; k < length - deleteCount; ++k )
        {
          if (JSValue *v = getProperty(exec, thisObj, k+deleteCount))
            thisObj->put(exec, k+additionalArgs, v);
          else
            thisObj->deleteProperty(exec, k+additionalArgs);
        }
        for ( unsigned int k = length ; k > length - deleteCount + additionalArgs; --k )
          thisObj->deleteProperty(exec, k-1);
      }
      else
      {
        for ( unsigned int k = length - deleteCount; (int)k > begin; --k )
        {
          if (JSValue *obj = getProperty(exec, thisObj, k + deleteCount - 1))
            thisObj->put(exec, k + additionalArgs - 1, obj);
          else
            thisObj->deleteProperty(exec, k+additionalArgs-1);
        }
      }
    }
    for ( unsigned int k = 0; k < additionalArgs; ++k )
    {
      thisObj->put(exec, k+begin, args[k+2]);
    }
    thisObj->put(exec, exec->propertyNames().length, jsNumber(length - deleteCount + additionalArgs), DontEnum | DontDelete);
    break;
  }
  case UnShift: { // 15.4.4.13
    unsigned int nrArgs = args.size();
    for ( unsigned int k = length; k > 0; --k )
    {
      if (JSValue *v = getProperty(exec, thisObj, k - 1))
        thisObj->put(exec, k+nrArgs-1, v);
      else
        thisObj->deleteProperty(exec, k+nrArgs-1);
    }
    for ( unsigned int k = 0; k < nrArgs; ++k )
      thisObj->put(exec, k, args[k]);
    result = jsNumber(length + nrArgs);
    thisObj->put(exec, exec->propertyNames().length, result, DontEnum | DontDelete);
    break;
  }
  case Filter:
  case Map: {
    JSObject *eachFunction = args[0]->toObject(exec);
    
    if (!eachFunction->implementsCall())
      return throwError(exec, TypeError);
    
    JSObject *applyThis = args[1]->isUndefinedOrNull() ? exec->dynamicInterpreter()->globalObject() :  args[1]->toObject(exec);
    JSObject *resultArray;
    
    if (id == Filter) 
      resultArray = static_cast<JSObject *>(exec->lexicalInterpreter()->builtinArray()->construct(exec, List::empty()));
    else {
      List args;
      args.append(jsNumber(length));
      resultArray = static_cast<JSObject *>(exec->lexicalInterpreter()->builtinArray()->construct(exec, args));
    }
    
    unsigned filterIndex = 0;
    for (unsigned k = 0; k < length && !exec->hadException(); ++k) {
      PropertySlot slot;

      if (!thisObj->getPropertySlot(exec, k, slot))
         continue;
        
      JSValue *v = slot.getValue(exec, thisObj, k);
      
      List eachArguments;
      
      eachArguments.append(v);
      eachArguments.append(jsNumber(k));
      eachArguments.append(thisObj);
      
      JSValue *result = eachFunction->call(exec, applyThis, eachArguments);
      
      if (id == Map)
        resultArray->put(exec, k, result);
      else if (result->toBoolean(exec)) 
        resultArray->put(exec, filterIndex++, v);
    }
    
    return resultArray;
  }
  case Every:
  case ForEach:
  case Some: {
    //Documentation for these three is available at:
    //http://developer-test.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Objects:Array:every
    //http://developer-test.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Objects:Array:forEach
    //http://developer-test.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Objects:Array:some
    
    JSObject *eachFunction = args[0]->toObject(exec);
    
    if (!eachFunction->implementsCall())
      return throwError(exec, TypeError);
    
    JSObject *applyThis = args[1]->isUndefinedOrNull() ? exec->dynamicInterpreter()->globalObject() :  args[1]->toObject(exec);
    
    if (id == Some || id == Every)
      result = jsBoolean(id == Every);
    else
      result = jsUndefined();
    
    for (unsigned k = 0; k < length && !exec->hadException(); ++k) {
      PropertySlot slot;
        
      if (!thisObj->getPropertySlot(exec, k, slot))
        continue;
      
      List eachArguments;
      
      eachArguments.append(slot.getValue(exec, thisObj, k));
      eachArguments.append(jsNumber(k));
      eachArguments.append(thisObj);
      
      bool predicateResult = eachFunction->call(exec, applyThis, eachArguments)->toBoolean(exec);
      
      if (id == Every && !predicateResult) {
        result = jsBoolean(false);
        break;
      }
      if (id == Some && predicateResult) {
        result = jsBoolean(true);
        break;
      }
    }
    break;
  }

  case IndexOf: {
    // JavaScript 1.5 Extension by Mozilla
    // Documentation: http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Global_Objects:Array:indexOf

    unsigned index = 0;
    double d = args[1]->toInteger(exec);
    if (d < 0)
        d += length;
    if (d > 0) {
        if (d > length)
            index = length;
        else
            index = static_cast<unsigned>(d);
    }

    JSValue* searchElement = args[0];
    for (; index < length; ++index) {
        JSValue* e = getProperty(exec, thisObj, index);
        if (!e)
            continue;
        if (strictEqual(exec, searchElement, e))
            return jsNumber(index);
    }

    return jsNumber(-1);
  }
  case LastIndexOf: {
       // JavaScript 1.6 Extension by Mozilla
      // Documentation: http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Global_Objects:Array:lastIndexOf 

    int index = length - 1;
    double d = args[1]->toInteger(exec);

    if (d < 0) {
        d += length;
        if (d < 0) 
            return jsNumber(-1);
    }
    if (d < length)
        index = static_cast<int>(d);
          
    JSValue* searchElement = args[0];
    for (; index >= 0; --index) {
        JSValue* e = getProperty(exec, thisObj, index);
        if (!e)
            continue;
        if (strictEqual(exec, searchElement, e))
            return jsNumber(index);
    }
          
    return jsNumber(-1);
}
  default:
    assert(0);
    result = 0;
    break;
  }
  return result;
}
Exemplo n.º 6
0
JSValue* FunctionProtoFunc::callAsFunction(ExecState* exec, JSObject* thisObj, const List &args)
{
  JSValue* result = NULL;

  switch (id) {
  case ToString:
    if (!thisObj || !thisObj->inherits(&InternalFunctionImp::info)) {
#ifndef NDEBUG
      fprintf(stderr,"attempted toString() call on null or non-function object\n");
#endif
      return throwError(exec, TypeError);
    }
    if (thisObj->inherits(&FunctionImp::info)) {
        return jsString(static_cast<FunctionImp*>(thisObj)->toSource());
     } else if (thisObj->inherits(&InternalFunctionImp::info) &&
                !static_cast<InternalFunctionImp*>(thisObj)->functionName().isNull()) {
       result = jsString("\nfunction " + static_cast<InternalFunctionImp*>(thisObj)->functionName().ustring() + "() {\n"
                       "    [native code]\n}\n");
    } else {
      result = jsString("[function]");
    }
    break;
  case Apply: {
    JSValue *thisArg = args[0];
    JSValue *argArray = args[1];
    JSObject *func = thisObj;

    if (!func->implementsCall())
      return throwError(exec, TypeError);

    JSObject *applyThis;
    if (thisArg->isUndefinedOrNull())
      applyThis = exec->dynamicInterpreter()->globalObject();
    else
      applyThis = thisArg->toObject(exec);

    List applyArgs;
    if (!argArray->isUndefinedOrNull()) {
      if (argArray->isObject() &&
           (static_cast<JSObject *>(argArray)->inherits(&ArrayInstance::info) ||
            static_cast<JSObject *>(argArray)->inherits(&Arguments::info))) {

        JSObject *argArrayObj = static_cast<JSObject *>(argArray);
        unsigned int length = argArrayObj->get(exec, exec->propertyNames().length)->toUInt32(exec);
        for (unsigned int i = 0; i < length; i++)
          applyArgs.append(argArrayObj->get(exec,i));
      }
      else
        return throwError(exec, TypeError);
    }
    result = func->call(exec,applyThis,applyArgs);
    }
    break;
  case Call: {
    JSValue *thisArg = args[0];
    JSObject *func = thisObj;

    if (!func->implementsCall())
      return throwError(exec, TypeError);

    JSObject *callThis;
    if (thisArg->isUndefinedOrNull())
      callThis = exec->dynamicInterpreter()->globalObject();
    else
      callThis = thisArg->toObject(exec);

    result = func->call(exec,callThis,args.copyTail());
    }
    break;
  }

  return result;
}
Exemplo n.º 7
0
void JSAbstractEventListener::handleEvent(Event* ele, bool isWindowEvent)
{
#ifdef KJS_DEBUGGER
    if (KJSDebugWin::instance() && KJSDebugWin::instance()->inSession())
        return;
#endif

    Event *event = ele;

    JSObject* listener = listenerObj();
    if (!listener)
        return;

    Window* window = windowObj();
    Frame *frame = window->frame();
    if (!frame)
        return;
    KJSProxy* proxy = frame->jScript();
    if (!proxy)
        return;

    JSLock lock;
  
    ScriptInterpreter* interpreter = proxy->interpreter();
    ExecState* exec = interpreter->globalExec();
  
    JSValue* handleEventFuncValue = listener->get(exec, "handleEvent");
    JSObject* handleEventFunc = 0;
    if (handleEventFuncValue->isObject()) {      
        handleEventFunc = static_cast<JSObject*>(handleEventFuncValue);
        if (!handleEventFunc->implementsCall())
            handleEventFunc = 0;
    }
  
    if (handleEventFunc || listener->implementsCall()) {
        ref();
      
        List args;
        args.append(toJS(exec, event));
      
        // Set the event we're handling in the Window object
        window->setCurrentEvent(event);
        // ... and in the interpreter
        interpreter->setCurrentEvent(event);
      
        JSValue* retval;
        if (handleEventFunc) {
            interpreter->startTimeoutCheck();
            retval = handleEventFunc->call(exec, listener, args);
        } else {
            JSObject* thisObj;
            if (isWindowEvent)
                thisObj = window;
            else
                thisObj = static_cast<JSObject*>(toJS(exec, event->currentTarget()));
            interpreter->startTimeoutCheck();
            retval = listener->call(exec, thisObj, args);
        }
        interpreter->stopTimeoutCheck();

        window->setCurrentEvent(0);
        interpreter->setCurrentEvent(0);

        if (exec->hadException()) {
            JSObject* exception = exec->exception()->toObject(exec);
            String message = exception->get(exec, messagePropertyName)->toString(exec);
            int lineNumber = exception->get(exec, "line")->toInt32(exec);
            String sourceURL = exception->get(exec, "sourceURL")->toString(exec);
            if (Interpreter::shouldPrintExceptions())
                printf("(event handler):%s\n", message.deprecatedString().utf8().data());
            frame->addMessageToConsole(message, lineNumber, sourceURL);
            exec->clearException();
        } else {
            if (!retval->isUndefinedOrNull() && event->storesResultAsString())
                event->storeResult(retval->toString(exec));
            if (html) {
                bool retvalbool;
                if (retval->getBoolean(retvalbool) && !retvalbool)
                    event->preventDefault();
            }
        }

        Document::updateDocumentsRendering();
        deref();
    }
}
Exemplo n.º 8
0
bool JSObjectIsFunction(JSContextRef, JSObjectRef object)
{
    JSObject* jsObject = toJS(object);
    return jsObject->implementsCall();
}