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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/ash/input_method/announcement_label.h"
#include "base/time/time.h"
#include "ui/accessibility/ax_enums.mojom.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/views/accessibility/view_accessibility.h"
namespace ui {
namespace ime {
AnnouncementLabel::AnnouncementLabel(const std::u16string& name) {
GetViewAccessibility().SetRole(ax::mojom::Role::kStatus);
GetViewAccessibility().SetName(name);
GetViewAccessibility().SetContainerLiveStatus("polite");
UpdateAccessibleDescription();
}
AnnouncementLabel::~AnnouncementLabel() = default;
void AnnouncementLabel::AnnounceAfterDelay(const std::u16string& text,
base::TimeDelta delay) {
if (text.empty()) {
return;
}
delay_timer_ = std::make_unique<base::OneShotTimer>();
delay_timer_->Start(FROM_HERE, delay,
base::BindOnce(&AnnouncementLabel::DoAnnouncement,
base::Unretained(this), text));
}
void AnnouncementLabel::DoAnnouncement(const std::u16string text) {
announcement_text_ = text;
UpdateAccessibleDescription();
NotifyAccessibilityEventDeprecated(ax::mojom::Event::kLiveRegionChanged,
/*send_native_event=*/false);
}
void AnnouncementLabel::UpdateAccessibleDescription() {
if (announcement_text_.empty()) {
GetViewAccessibility().RemoveDescription();
} else {
GetViewAccessibility().SetDescription(announcement_text_);
}
}
BEGIN_METADATA(AnnouncementLabel)
END_METADATA
} // namespace ime
} // namespace ui
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