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// Copyright 2016 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_UI_WEBUI_ASH_SETTINGS_PAGES_DEVICE_DEVICE_POINTER_HANDLER_H_
#define CHROME_BROWSER_UI_WEBUI_ASH_SETTINGS_PAGES_DEVICE_DEVICE_POINTER_HANDLER_H_
#include <memory>
#include "chrome/browser/ash/system/pointer_device_observer.h"
#include "chrome/browser/ui/webui/settings/settings_page_ui_handler.h"
namespace ash::settings {
// Chrome OS "Mouse and touchpad" settings page UI handler.
class PointerHandler : public ::settings::SettingsPageUIHandler,
public system::PointerDeviceObserver::Observer {
public:
PointerHandler();
PointerHandler(const PointerHandler&) = delete;
PointerHandler& operator=(const PointerHandler&) = delete;
~PointerHandler() override;
// SettingsPageUIHandler implementation.
void RegisterMessages() override;
void OnJavascriptAllowed() override;
void OnJavascriptDisallowed() override;
private:
// PointerDeviceObserver implementation.
void TouchpadExists(bool exists) override;
void HapticTouchpadExists(bool exists) override;
void MouseExists(bool exists) override;
void PointingStickExists(bool exists) override;
// Initializes the page with the current pointer information.
void HandleInitialize(const base::Value::List& args);
std::unique_ptr<system::PointerDeviceObserver> pointer_device_observer_;
};
} // namespace ash::settings
#endif // CHROME_BROWSER_UI_WEBUI_ASH_SETTINGS_PAGES_DEVICE_DEVICE_POINTER_HANDLER_H_
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