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// Copyright 2014 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_CHROMEOS_APP_MODE_KIOSK_APP_EXTERNAL_LOADER_H_
#define CHROME_BROWSER_CHROMEOS_APP_MODE_KIOSK_APP_EXTERNAL_LOADER_H_
#include "base/functional/callback_forward.h"
#include "base/memory/weak_ptr.h"
#include "base/values.h"
#include "chrome/browser/chromeos/app_mode/chrome_kiosk_external_loader_broker.h"
#include "chrome/browser/extensions/external_loader.h"
namespace chromeos {
// An extensions::ExternalLoader that loads apps and extensions for a kiosk
// session. It is used to either load primary kiosk app, or secondary kiosk
// apps (or extensions). Single instance cannot load both primary and secondary
// apps.
// It registers a callback with KioskChromeAppManager that is called when the
// kiosk app information is updated - when run, the callback will finish
// extension load handled by `this`. Note that `this` might call
// extensions::ExternalLoader::OnUpdated(), because in certain cases kiosk app
// properties might get updated. This lives on the UI thread, even though it's
// ref counted as a subclass of `extensions::ExternalLoader`.
class KioskAppExternalLoader : public extensions::ExternalLoader {
public:
enum class AppClass { kPrimary, kSecondary };
explicit KioskAppExternalLoader(AppClass app_class);
KioskAppExternalLoader(const KioskAppExternalLoader&) = delete;
KioskAppExternalLoader& operator=(const KioskAppExternalLoader&) = delete;
// extensions::ExternalLoader:
void StartLoading() override;
protected:
~KioskAppExternalLoader() override;
private:
enum class State { kInitial, kLoading, kLoaded };
// Registers callback for handling kiosk apps prefs changes.
void SetPrefsChangedHandler(
ChromeKioskExternalLoaderBroker::InstallDataChangeCallback handler);
// Sends `prefs` through to the external loader owner (using
// extensions::ExternalLoader interface).
void SendPrefs(base::Value::Dict prefs);
// The class of kiosk apps this external extensions loader handles.
const AppClass app_class_;
State state_ = State::kInitial;
base::WeakPtrFactory<KioskAppExternalLoader> weak_ptr_factory_{this};
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_APP_MODE_KIOSK_APP_EXTERNAL_LOADER_H_
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