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// Copyright 2024 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_ASH_INPUT_METHOD_EDITOR_ANNOUNCER_H_
#define CHROME_BROWSER_ASH_INPUT_METHOD_EDITOR_ANNOUNCER_H_
#include <string>
#include "base/memory/raw_ptr.h"
#include "base/scoped_observation.h"
#include "chrome/browser/ui/ash/input_method/announcement_view.h"
#include "ui/views/widget/widget_observer.h"
namespace ash::input_method {
// An interface used to trigger ChromeVox announcements.
class EditorAnnouncer {
public:
virtual void Announce(const std::u16string& message) = 0;
};
class EditorLiveRegionAnnouncer : public EditorAnnouncer {
public:
explicit EditorLiveRegionAnnouncer(std::u16string_view name);
// EditorAnnouncer overrides
void Announce(const std::u16string& message) override;
private:
class LiveRegion : public views::WidgetObserver {
public:
explicit LiveRegion(std::u16string_view name);
~LiveRegion() override;
// Triggers a ChromeVox announcement via the live region view.
void Announce(const std::u16string& message);
// WidgetObserver overrides
void OnWidgetDestroying(views::Widget* widget) override;
private:
void CreateAnnouncementView();
std::u16string announcement_view_name_;
// Holds the view used to trigger announcements with ChromeVox. This is
// a raw_ptr due to the lifetime of the instance being handled by the
// DialogDelegateView the class inherits from.
raw_ptr<ui::ime::AnnouncementView> announcement_view_ = nullptr;
base::ScopedObservation<views::Widget, views::WidgetObserver> obs_{this};
};
LiveRegion live_region_;
};
} // namespace ash::input_method
#endif // CHROME_BROWSER_ASH_INPUT_METHOD_EDITOR_ANNOUNCER_H_
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