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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_UI_WEBUI_SETTINGS_ACCESSIBILITY_MAIN_HANDLER_H_
#define CHROME_BROWSER_UI_WEBUI_SETTINGS_ACCESSIBILITY_MAIN_HANDLER_H_
#include "base/scoped_observation.h"
#include "build/build_config.h"
#include "chrome/browser/screen_ai/screen_ai_install_state.h"
#include "chrome/browser/ui/webui/settings/settings_page_ui_handler.h"
#if BUILDFLAG(IS_CHROMEOS)
#include "chrome/browser/ash/accessibility/accessibility_manager.h"
#endif // BUILDFLAG(IS_CHROMEOS)
namespace settings {
// Settings handler for the main accessibility settings page,
// chrome://settings/accessibility.
class AccessibilityMainHandler
: public ::settings::SettingsPageUIHandler,
public screen_ai::ScreenAIInstallState::Observer {
public:
AccessibilityMainHandler();
~AccessibilityMainHandler() override;
AccessibilityMainHandler(const AccessibilityMainHandler&) = delete;
AccessibilityMainHandler& operator=(const AccessibilityMainHandler&) = delete;
// SettingsPageUIHandler implementation.
void RegisterMessages() override;
void OnJavascriptAllowed() override;
void OnJavascriptDisallowed() override;
// screen_ai::ScreenAIInstallState::Observer:
void DownloadProgressChanged(double progress) override;
void StateChanged(screen_ai::ScreenAIInstallState::State state) override;
private:
void HandleGetScreenReaderState(const base::Value::List& args);
void HandleCheckAccessibilityImageLabels(const base::Value::List& args);
void HandleGetScreenAIInstallState(const base::Value::List& args);
void SendScreenReaderStateChanged();
#if BUILDFLAG(IS_CHROMEOS)
void OnAccessibilityStatusChanged(
const ash::AccessibilityStatusEventDetails& details);
base::CallbackListSubscription accessibility_subscription_;
#endif // BUILDFLAG(IS_CHROMEOS)
base::ScopedObservation<screen_ai::ScreenAIInstallState,
screen_ai::ScreenAIInstallState::Observer>
component_ready_observer_{this};
};
} // namespace settings
#endif // CHROME_BROWSER_UI_WEBUI_SETTINGS_ACCESSIBILITY_MAIN_HANDLER_H_
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