JSCustomVoidCallback.cpp [plain text]
#include "config.h"
#include "JSCustomVoidCallback.h"
#include "CString.h"
#include "DOMWindow.h"
#include "Frame.h"
#include "kjs_binding.h"
#include "kjs_proxy.h"
#include "kjs_window.h"
#include "Page.h"
namespace WebCore {
using namespace KJS;
JSCustomVoidCallback::JSCustomVoidCallback(JSObject* callback, Frame* frame)
: m_callback(callback)
, m_frame(frame)
{
}
void JSCustomVoidCallback::handleEvent()
{
ASSERT(m_callback);
ASSERT(m_frame);
if (!m_frame->scriptProxy()->isEnabled())
return;
JSGlobalObject* globalObject = m_frame->scriptProxy()->globalObject();
ExecState* exec = globalObject->globalExec();
KJS::JSLock lock;
JSValue* handleEventFuncValue = m_callback->get(exec, "handleEvent");
JSObject* handleEventFunc = 0;
if (handleEventFuncValue->isObject()) {
handleEventFunc = static_cast<JSObject*>(handleEventFuncValue);
if (!handleEventFunc->implementsCall())
handleEventFunc = 0;
}
if (!handleEventFunc && !m_callback->implementsCall()) {
return;
}
RefPtr<JSCustomVoidCallback> protect(this);
List args;
globalObject->startTimeoutCheck();
if (handleEventFunc)
handleEventFunc->call(exec, m_callback, args);
else
m_callback->call(exec, m_callback, args);
globalObject->stopTimeoutCheck();
if (exec->hadException()) {
JSObject* exception = exec->exception()->toObject(exec);
String message = exception->get(exec, exec->propertyNames().message)->toString(exec);
int lineNumber = exception->get(exec, "line")->toInt32(exec);
String sourceURL = exception->get(exec, "sourceURL")->toString(exec);
if (Interpreter::shouldPrintExceptions())
printf("VoidCallback: %s\n", message.utf8().data());
if (Page* page = m_frame->page())
page->chrome()->addMessageToConsole(JSMessageSource, ErrorMessageLevel, message, lineNumber, sourceURL);
exec->clearException();
}
Document::updateDocumentsRendering();
}
VoidCallback* toVoidCallback(ExecState* exec, JSValue* value, bool& ok)
{
ok = false;
JSObject* object = value->getObject();
if (!object)
return 0;
Frame* frame = Window::retrieveActive(exec)->impl()->frame();
if (!frame)
return 0;
ok = true;
return new JSCustomVoidCallback(object, frame);
}
}