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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_ASH_ARC_INSTANCE_THROTTLE_ARC_BOOT_PHASE_THROTTLE_OBSERVER_H_
#define CHROME_BROWSER_ASH_ARC_INSTANCE_THROTTLE_ARC_BOOT_PHASE_THROTTLE_OBSERVER_H_
#include <optional>
#include "base/memory/weak_ptr.h"
#include "chrome/browser/ash/arc/session/arc_session_manager_observer.h"
#include "chrome/browser/sessions/session_restore_observer.h"
#include "chromeos/ash/components/throttle/throttle_observer.h"
#include "chromeos/ash/experiences/arc/mojom/app.mojom.h"
#include "chromeos/ash/experiences/arc/mojom/intent_helper.mojom.h"
#include "chromeos/ash/experiences/arc/session/connection_holder.h"
namespace content {
class BrowserContext;
}
namespace arc {
inline constexpr char kArcBootPhaseThrottleObserverName[] = "ArcIsBooting";
// This class observes phases of ARC boot and unthrottles the container
// when ARC is booting or restarting.
class ArcBootPhaseThrottleObserver
: public ash::ThrottleObserver,
public ArcSessionManagerObserver,
public SessionRestoreObserver,
public arc::ConnectionObserver<arc::mojom::AppInstance>,
public arc::ConnectionObserver<arc::mojom::IntentHelperInstance> {
public:
ArcBootPhaseThrottleObserver();
ArcBootPhaseThrottleObserver(const ArcBootPhaseThrottleObserver&) = delete;
ArcBootPhaseThrottleObserver& operator=(const ArcBootPhaseThrottleObserver&) =
delete;
~ArcBootPhaseThrottleObserver() override;
// ash::ThrottleObserver:
void StartObserving(content::BrowserContext* context,
const ObserverStateChangedCallback& callback) override;
void StopObserving() override;
// ArcSessionManagerObserver:
void OnArcStarted() override;
void OnArcInitialStart() override;
void OnArcSessionRestarting() override;
// SessionRestoreObserver:
void OnSessionRestoreStartedLoadingTabs() override;
void OnSessionRestoreFinishedLoadingTabs() override;
// arc::ConnectionObserver<arc::mojom::AppInstance> overrides.
// arc::ConnectionObserver<arc::mojom::IntentHelperInstance> overrides.
void OnConnectionReady() override;
// If nullopt, ARC hasn't been started yet. Otherwise, true means ARC is
// booting, and false means ARC has already booted.
const std::optional<bool>& arc_is_booting() const { return arc_is_booting_; }
static const base::TimeDelta& GetThrottleDelayForTesting();
private:
void ThrottleArc();
// Enables lock if ARC is booting unless session restore is currently in
// progress. If ARC was started for opt-in or by enterprise policy, always
// enable since in these cases ARC should always be unthrottled during boot.
void MaybeSetActive();
bool session_restore_loading_ = false;
// This is set when one of the ArcSessionManagerObserver functions is called.
std::optional<bool> arc_is_booting_;
base::WeakPtrFactory<ArcBootPhaseThrottleObserver> weak_ptr_factory_{this};
};
} // namespace arc
#endif // CHROME_BROWSER_ASH_ARC_INSTANCE_THROTTLE_ARC_BOOT_PHASE_THROTTLE_OBSERVER_H_
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