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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
* Copyright (C) 2013 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT
* OWNER 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 "JSErrorHandler.h"
#include "Document.h"
#include "ErrorEvent.h"
#include "Event.h"
#include "EventNames.h"
#include "JSEvent.h"
#include "JSMainThreadExecState.h"
#include "JSMainThreadExecStateInstrumentation.h"
#include <runtime/JSLock.h>
#include <runtime/VMEntryScope.h>
#include <wtf/Ref.h>
using namespace JSC;
namespace WebCore {
JSErrorHandler::JSErrorHandler(JSObject* function, JSObject* wrapper, bool isAttribute, DOMWrapperWorld& world)
: JSEventListener(function, wrapper, isAttribute, world)
{
}
JSErrorHandler::~JSErrorHandler()
{
}
void JSErrorHandler::handleEvent(ScriptExecutionContext* scriptExecutionContext, Event* event)
{
if (!is<ErrorEvent>(*event))
return JSEventListener::handleEvent(scriptExecutionContext, event);
ASSERT(scriptExecutionContext);
if (!scriptExecutionContext)
return;
ErrorEvent& errorEvent = downcast<ErrorEvent>(*event);
JSLockHolder lock(scriptExecutionContext->vm());
JSObject* jsFunction = this->jsFunction(scriptExecutionContext);
if (!jsFunction)
return;
JSDOMGlobalObject* globalObject = toJSDOMGlobalObject(scriptExecutionContext, isolatedWorld());
if (!globalObject)
return;
ExecState* exec = globalObject->globalExec();
CallData callData;
CallType callType = jsFunction->methodTable()->getCallData(jsFunction, callData);
if (callType != CallTypeNone) {
Ref<JSErrorHandler> protectedctor(*this);
Event* savedEvent = globalObject->currentEvent();
globalObject->setCurrentEvent(event);
MarkedArgumentBuffer args;
args.append(jsStringWithCache(exec, errorEvent.message()));
args.append(jsStringWithCache(exec, errorEvent.filename()));
args.append(jsNumber(errorEvent.lineno()));
args.append(jsNumber(errorEvent.colno()));
VM& vm = globalObject->vm();
VMEntryScope entryScope(vm, vm.entryScope ? vm.entryScope->globalObject() : globalObject);
InspectorInstrumentationCookie cookie = JSMainThreadExecState::instrumentFunctionCall(scriptExecutionContext, callType, callData);
NakedPtr<Exception> exception;
JSValue returnValue = scriptExecutionContext->isDocument()
? JSMainThreadExecState::profiledCall(exec, JSC::ProfilingReason::Other, jsFunction, callType, callData, globalObject, args, exception)
: JSC::profiledCall(exec, JSC::ProfilingReason::Other, jsFunction, callType, callData, globalObject, args, exception);
InspectorInstrumentation::didCallFunction(cookie, scriptExecutionContext);
globalObject->setCurrentEvent(savedEvent);
if (exception)
reportException(exec, exception);
else {
if (returnValue.isTrue())
event->preventDefault();
}
}
}
} // namespace WebCore
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