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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 BatteryManager_h
#define BatteryManager_h
#include "bindings/core/v8/ScriptPromise.h"
#include "bindings/core/v8/ScriptPromiseResolver.h"
#include "core/dom/ContextLifecycleObserver.h"
#include "core/frame/PlatformEventController.h"
#include "modules/EventTargetModules.h"
#include "platform/heap/Handle.h"
namespace blink {
class BatteryStatus;
class BatteryManager final : public RefCountedGarbageCollectedEventTargetWithInlineData<BatteryManager>, public ActiveDOMObject, public PlatformEventController {
DEFINE_EVENT_TARGET_REFCOUNTING_WILL_BE_REMOVED(RefCountedGarbageCollected<BatteryManager>);
DEFINE_WRAPPERTYPEINFO();
WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(BatteryManager);
public:
static BatteryManager* create(ExecutionContext*);
virtual ~BatteryManager();
// Returns a promise object that will be resolved with this BatteryManager.
ScriptPromise startRequest(ScriptState*);
// EventTarget implementation.
virtual const WTF::AtomicString& interfaceName() const override { return EventTargetNames::BatteryManager; }
virtual ExecutionContext* executionContext() const override { return ContextLifecycleObserver::executionContext(); }
bool charging();
double chargingTime();
double dischargingTime();
double level();
DEFINE_ATTRIBUTE_EVENT_LISTENER(chargingchange);
DEFINE_ATTRIBUTE_EVENT_LISTENER(chargingtimechange);
DEFINE_ATTRIBUTE_EVENT_LISTENER(dischargingtimechange);
DEFINE_ATTRIBUTE_EVENT_LISTENER(levelchange);
// Inherited from PlatformEventController.
virtual void didUpdateData() override;
virtual void registerWithDispatcher() override;
virtual void unregisterWithDispatcher() override;
virtual bool hasLastData() override;
// ActiveDOMObject implementation.
virtual bool canSuspend() const { return true; }
virtual void suspend() override;
virtual void resume() override;
virtual void stop() override;
virtual bool hasPendingActivity() const override;
virtual void trace(Visitor*) override;
private:
enum State {
NotStarted,
Pending,
Resolved,
};
explicit BatteryManager(ExecutionContext*);
RefPtrWillBeMember<ScriptPromiseResolver> m_resolver;
Member<BatteryStatus> m_batteryStatus;
State m_state;
};
} // namespace blink
#endif // BatteryManager_h
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