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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NullExecutionContext_h
#define NullExecutionContext_h
#include "bindings/core/v8/SourceLocation.h"
#include "core/dom/ExecutionContext.h"
#include "core/dom/SecurityContext.h"
#include "core/events/EventQueue.h"
#include "core/inspector/ConsoleMessage.h"
#include "platform/heap/Handle.h"
#include "platform/weborigin/KURL.h"
#include <memory>
namespace blink {
class NullExecutionContext final
: public GarbageCollectedFinalized<NullExecutionContext>,
public SecurityContext,
public ExecutionContext {
USING_GARBAGE_COLLECTED_MIXIN(NullExecutionContext);
public:
NullExecutionContext();
void disableEval(const String&) override {}
String userAgent() const override { return String(); }
void postTask(
TaskType,
const WebTraceLocation&,
std::unique_ptr<ExecutionContextTask>,
const String& taskNameForInstrumentation = emptyString()) override;
EventTarget* errorEventTarget() override { return nullptr; }
EventQueue* getEventQueue() const override { return m_queue.get(); }
bool tasksNeedSuspension() override { return m_tasksNeedSuspension; }
void setTasksNeedSuspension(bool flag) { m_tasksNeedSuspension = flag; }
void didUpdateSecurityOrigin() override {}
SecurityContext& securityContext() override { return *this; }
DOMTimerCoordinator* timers() override { return nullptr; }
void addConsoleMessage(ConsoleMessage*) override {}
void exceptionThrown(ErrorEvent*) override {}
void setIsSecureContext(bool);
bool isSecureContext(
String& errorMessage,
const SecureContextCheck = StandardSecureContextCheck) const override;
DEFINE_INLINE_TRACE() {
visitor->trace(m_queue);
SecurityContext::trace(visitor);
ExecutionContext::trace(visitor);
}
protected:
const KURL& virtualURL() const override { return m_dummyURL; }
KURL virtualCompleteURL(const String&) const override { return m_dummyURL; }
private:
bool m_tasksNeedSuspension;
bool m_isSecureContext;
Member<EventQueue> m_queue;
KURL m_dummyURL;
};
} // namespace blink
#endif // NullExecutionContext_h
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