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// Copyright 2017 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 CHROME_BROWSER_UI_WEBUI_SETTINGS_CHROMEOS_DEVICE_STYLUS_HANDLER_H_
#define CHROME_BROWSER_UI_WEBUI_SETTINGS_CHROMEOS_DEVICE_STYLUS_HANDLER_H_
#include <set>
#include <string>
#include "base/macros.h"
#include "base/scoped_observer.h"
#include "chrome/browser/chromeos/note_taking_helper.h"
#include "chrome/browser/ui/webui/settings/settings_page_ui_handler.h"
#include "ui/events/devices/device_data_manager.h"
#include "ui/events/devices/input_device_event_observer.h"
namespace base {
class ListValue;
}
namespace chromeos {
namespace settings {
// Chrome OS stylus settings handler.
class StylusHandler : public ::settings::SettingsPageUIHandler,
public NoteTakingHelper::Observer,
public ui::InputDeviceEventObserver {
public:
StylusHandler();
~StylusHandler() override;
// SettingsPageUIHandler implementation.
void RegisterMessages() override;
void OnJavascriptAllowed() override;
void OnJavascriptDisallowed() override;
// chromeos::NoteTakingHelper::Observer implementation.
void OnAvailableNoteTakingAppsUpdated() override;
void OnPreferredNoteTakingAppUpdated(Profile* profile) override;
// ui::InputDeviceObserver:
void OnDeviceListsComplete() override;
private:
void UpdateNoteTakingApps();
void HandleRequestApps(const base::ListValue* unused_args);
void HandleSetPreferredNoteTakingApp(const base::ListValue* args);
void HandleSetPreferredNoteTakingAppEnabledOnLockScreen(
const base::ListValue* args);
void HandleInitialize(const base::ListValue* args);
// Enables or disables the stylus UI section.
void SendHasStylus();
// Called by JS to show the Play Store Android app.
void HandleShowPlayStoreApps(const base::ListValue* args);
// IDs of available note-taking apps.
std::set<std::string> note_taking_app_ids_;
// Observer registration.
ScopedObserver<NoteTakingHelper, NoteTakingHelper::Observer> note_observer_{
this};
ScopedObserver<ui::DeviceDataManager, ui::InputDeviceEventObserver>
input_observer_{this};
DISALLOW_COPY_AND_ASSIGN(StylusHandler);
};
} // namespace settings
} // namespace chromeos
#endif // CHROME_BROWSER_UI_WEBUI_SETTINGS_CHROMEOS_DEVICE_STYLUS_HANDLER_H_
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