123 lines
4.6 KiB
C++
123 lines
4.6 KiB
C++
/*
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* Copyright (C) 2010 Google Inc. All rights reserved.
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* Copyright (C) 2013-2018 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "JSErrorHandler.h"
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#include "Document.h"
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#include "ErrorEvent.h"
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#include "Event.h"
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#include "JSDOMConvertNumbers.h"
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#include "JSDOMConvertStrings.h"
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#include "JSDOMWindow.h"
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#include "JSEvent.h"
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#include "JSExecState.h"
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#include "JSExecStateInstrumentation.h"
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#include <JavaScriptCore/JSLock.h>
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#include <JavaScriptCore/VMEntryScope.h>
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#include <wtf/Ref.h>
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namespace WebCore {
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using namespace JSC;
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inline JSErrorHandler::JSErrorHandler(JSObject& listener, JSObject& wrapper, bool isAttribute, DOMWrapperWorld& world)
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: JSEventListener(&listener, &wrapper, isAttribute, world)
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{
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}
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Ref<JSErrorHandler> JSErrorHandler::create(JSC::JSObject& listener, JSC::JSObject& wrapper, bool isAttribute, DOMWrapperWorld& world)
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{
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return adoptRef(*new JSErrorHandler(listener, wrapper, isAttribute, world));
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}
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JSErrorHandler::~JSErrorHandler() = default;
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void JSErrorHandler::handleEvent(ScriptExecutionContext& scriptExecutionContext, Event& event)
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{
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if (!is<ErrorEvent>(event))
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return JSEventListener::handleEvent(scriptExecutionContext, event);
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VM& vm = scriptExecutionContext.vm();
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JSLockHolder lock(vm);
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JSObject* jsFunction = this->ensureJSFunction(scriptExecutionContext);
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if (!jsFunction)
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return;
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auto* globalObject = toJSDOMGlobalObject(scriptExecutionContext, isolatedWorld());
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if (!globalObject)
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return;
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auto callData = getCallData(vm, jsFunction);
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if (callData.type != CallData::Type::None) {
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Ref<JSErrorHandler> protectedThis(*this);
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RefPtr<Event> savedEvent;
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auto* jsFunctionWindow = jsDynamicCast<JSDOMWindow*>(vm, jsFunction->globalObject());
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if (jsFunctionWindow) {
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savedEvent = jsFunctionWindow->currentEvent();
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jsFunctionWindow->setCurrentEvent(&event);
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}
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auto& errorEvent = downcast<ErrorEvent>(event);
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MarkedArgumentBuffer args;
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args.append(toJS<IDLDOMString>(*globalObject, errorEvent.message()));
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args.append(toJS<IDLUSVString>(*globalObject, errorEvent.filename()));
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args.append(toJS<IDLUnsignedLong>(errorEvent.lineno()));
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args.append(toJS<IDLUnsignedLong>(errorEvent.colno()));
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args.append(errorEvent.error(*globalObject));
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ASSERT(!args.hasOverflowed());
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VM& vm = globalObject->vm();
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VMEntryScope entryScope(vm, vm.entryScope ? vm.entryScope->globalObject() : globalObject);
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JSExecState::instrumentFunction(&scriptExecutionContext, callData);
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NakedPtr<JSC::Exception> exception;
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JSValue returnValue = JSExecState::profiledCall(globalObject, JSC::ProfilingReason::Other, jsFunction, callData, globalObject, args, exception);
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InspectorInstrumentation::didCallFunction(&scriptExecutionContext);
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if (jsFunctionWindow)
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jsFunctionWindow->setCurrentEvent(savedEvent.get());
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if (exception)
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reportException(globalObject, exception);
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else {
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if (returnValue.isTrue())
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event.preventDefault();
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}
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}
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}
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} // namespace WebCore
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