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// Copyright 2022 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_WEB_APPLICATIONS_LOCKS_APP_LOCK_H_
#define CHROME_BROWSER_WEB_APPLICATIONS_LOCKS_APP_LOCK_H_
#include "base/containers/flat_set.h"
#include "base/memory/weak_ptr.h"
#include "chrome/browser/web_applications/locks/lock.h"
#include "chrome/browser/web_applications/locks/with_app_resources.h"
#include "components/webapps/common/web_app_id.h"
namespace web_app {
class WebAppLockManager;
// This locks the given app ID(s) in the WebAppProvider system.
//
// Locks can be acquired by using the `WebAppLockManager`.
class AppLockDescription : public LockDescription {
public:
explicit AppLockDescription(const webapps::AppId& app_id);
explicit AppLockDescription(base::flat_set<webapps::AppId> app_ids);
AppLockDescription(AppLockDescription&&);
~AppLockDescription();
};
// Holding this lock means that no other lock-compatible operations are touching
// the same app id/s. This does not ensure that the app/s are installed when the
// lock is granted. Checks for that will need to be handled by the user of
// the lock.
//
// See `WebAppLockManager` for how to use locks. Destruction of this class will
// release the lock or cancel the lock request if it is not acquired yet.
//
// Note: Accessing a lock before it is granted or after the WebAppProvider
// system has shutdown (or the profile has shut down) will CHECK-fail.
class AppLock : public Lock, public WithAppResources {
public:
using LockDescription = AppLockDescription;
AppLock();
~AppLock();
base::WeakPtr<AppLock> AsWeakPtr() { return weak_factory_.GetWeakPtr(); }
private:
friend class WebAppLockManager;
void GrantLock(WebAppLockManager& lock_manager);
base::WeakPtrFactory<AppLock> weak_factory_{this};
};
} // namespace web_app
#endif // CHROME_BROWSER_WEB_APPLICATIONS_LOCKS_APP_LOCK_H_
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