/* | |
* Copyright (C) 2003, 2008 Apple Inc. All rights reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions | |
* are met: | |
* 1. Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright | |
* notice, this list of conditions and the following disclaimer in the | |
* documentation and/or other materials provided with the distribution. | |
* | |
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
*/ | |
#include "config.h" | |
#include "runtime_method.h" | |
#include "JSDOMBinding.h" | |
#include "JSHTMLElement.h" | |
#include "JSPluginElementFunctions.h" | |
#include "runtime_object.h" | |
#include <runtime/Error.h> | |
#include <runtime/FunctionPrototype.h> | |
using namespace WebCore; | |
namespace JSC { | |
using namespace Bindings; | |
ASSERT_CLASS_FITS_IN_CELL(RuntimeMethod); | |
const ClassInfo RuntimeMethod::s_info = { "RuntimeMethod", &InternalFunction::info, 0, 0 }; | |
RuntimeMethod::RuntimeMethod(ExecState* exec, const Identifier& ident, Bindings::MethodList& m) | |
// FIXME: deprecatedGetDOMStructure uses the prototype off of the wrong global object | |
// exec-globalData() is also likely wrong. | |
// Callers will need to pass in the right global object corresponding to this native object "m". | |
: InternalFunction(&exec->globalData(), deprecatedGetDOMStructure<RuntimeMethod>(exec), ident) | |
, _methodList(new MethodList(m)) | |
{ | |
} | |
JSValue RuntimeMethod::lengthGetter(ExecState* exec, JSValue slotBase, const Identifier&) | |
{ | |
RuntimeMethod* thisObj = static_cast<RuntimeMethod*>(asObject(slotBase)); | |
// Ick! There may be more than one method with this name. Arbitrarily | |
// just pick the first method. The fundamental problem here is that | |
// JavaScript doesn't have the notion of method overloading and | |
// Java does. | |
// FIXME: a better solution might be to give the maximum number of parameters | |
// of any method | |
return jsNumber(exec, thisObj->_methodList->at(0)->numParameters()); | |
} | |
bool RuntimeMethod::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot &slot) | |
{ | |
if (propertyName == exec->propertyNames().length) { | |
slot.setCacheableCustom(this, lengthGetter); | |
return true; | |
} | |
return InternalFunction::getOwnPropertySlot(exec, propertyName, slot); | |
} | |
bool RuntimeMethod::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor &descriptor) | |
{ | |
if (propertyName == exec->propertyNames().length) { | |
PropertySlot slot; | |
slot.setCustom(this, lengthGetter); | |
descriptor.setDescriptor(slot.getValue(exec, propertyName), ReadOnly | DontDelete | DontEnum); | |
return true; | |
} | |
return InternalFunction::getOwnPropertyDescriptor(exec, propertyName, descriptor); | |
} | |
static JSValue JSC_HOST_CALL callRuntimeMethod(ExecState* exec, JSObject* function, JSValue thisValue, const ArgList& args) | |
{ | |
RuntimeMethod* method = static_cast<RuntimeMethod*>(function); | |
if (method->methods()->isEmpty()) | |
return jsUndefined(); | |
RefPtr<Instance> instance; | |
if (thisValue.inherits(&RuntimeObject::s_info)) { | |
RuntimeObject* runtimeObject = static_cast<RuntimeObject*>(asObject(thisValue)); | |
instance = runtimeObject->getInternalInstance(); | |
if (!instance) | |
return RuntimeObject::throwInvalidAccessError(exec); | |
} else { | |
// Calling a runtime object of a plugin element? | |
if (thisValue.inherits(&JSHTMLElement::s_info)) { | |
HTMLElement* element = static_cast<JSHTMLElement*>(asObject(thisValue))->impl(); | |
instance = pluginInstance(element); | |
} | |
if (!instance) | |
return throwError(exec, TypeError); | |
} | |
ASSERT(instance); | |
instance->begin(); | |
JSValue result = instance->invokeMethod(exec, method, args); | |
instance->end(); | |
return result; | |
} | |
CallType RuntimeMethod::getCallData(CallData& callData) | |
{ | |
callData.native.function = callRuntimeMethod; | |
return CallTypeHost; | |
} | |
} |