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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 WaitUntilObserver_h
#define WaitUntilObserver_h
#include "core/dom/ContextLifecycleObserver.h"
#include "modules/serviceworkers/ServiceWorkerGlobalScopeClient.h"
#include "wtf/Forward.h"
#include "wtf/RefCounted.h"
namespace blink {
class ExceptionState;
class ExecutionContext;
class ScriptState;
class ScriptValue;
// Created for each ExtendableEvent instance.
class WaitUntilObserver final : public GarbageCollectedFinalized<WaitUntilObserver>, public ContextLifecycleObserver {
WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(WaitUntilObserver);
public:
enum EventType {
Activate,
Install,
NotificationClick,
Push
};
static WaitUntilObserver* create(ExecutionContext*, EventType, int eventID);
// Must be called before and after dispatching the event.
void willDispatchEvent();
void didDispatchEvent(bool errorOccurred);
// Observes the promise and delays calling the continuation until
// the given promise is resolved or rejected.
void waitUntil(ScriptState*, const ScriptValue&, ExceptionState&);
virtual void trace(Visitor*) override;
private:
class ThenFunction;
WaitUntilObserver(ExecutionContext*, EventType, int eventID);
void reportError(const ScriptValue&);
void incrementPendingActivity();
void decrementPendingActivity();
EventType m_type;
int m_eventID;
int m_pendingActivity;
bool m_hasError;
bool m_eventDispatched;
};
} // namespace blink
#endif // WaitUntilObserver_h
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