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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.
#include "ash/system/accessibility/mouse_keys/mouse_keys_tray.h"
#include "ash/accessibility/accessibility_controller.h"
#include "ash/accessibility/mouse_keys/mouse_keys_controller.h"
#include "ash/constants/tray_background_view_catalog.h"
#include "ash/resources/vector_icons/vector_icons.h"
#include "ash/session/session_controller_impl.h"
#include "ash/shelf/shelf.h"
#include "ash/shell.h"
#include "ash/strings/grit/ash_strings.h"
#include "ash/style/ash_color_id.h"
#include "ash/system/tray/tray_constants.h"
#include "ash/system/tray/tray_container.h"
#include "ash/system/tray/tray_utils.h"
#include "ui/accessibility/accessibility_features.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/base/models/image_model.h"
#include "ui/color/color_id.h"
#include "ui/gfx/paint_vector_icon.h"
#include "ui/views/accessibility/view_accessibility.h"
#include "ui/views/border.h"
#include "ui/views/controls/image_view.h"
namespace ash {
namespace {
// Arbitrary ID for the icon.
const int kMouseKeysTrayIconID = 11;
ui::ImageModel GetMouseKeysIcon() {
return ui::ImageModel::FromVectorIcon(
kSystemTrayMouseKeysIcon,
static_cast<ui::ColorId>(cros_tokens::kCrosSysOnSurface));
}
} // namespace
MouseKeysTray::MouseKeysTray(Shelf* shelf,
TrayBackgroundViewCatalogName catalog_name)
: TrayBackgroundView(shelf, catalog_name) {
SetCallback(
base::BindRepeating(&MouseKeysTray::OnMouseKeyIconPressed, GetWeakPtr()));
const ui::ImageModel image = GetMouseKeysIcon();
const int vertical_padding = (kTrayItemSize - image.Size().height()) / 2;
const int horizontal_padding = (kTrayItemSize - image.Size().width()) / 2;
tray_container()->AddChildView(
views::Builder<views::ImageView>()
.SetID(kMouseKeysTrayIconID)
.SetTooltipText(l10n_util::GetStringUTF16(
IDS_ASH_STATUS_TRAY_ACCESSIBILITY_MOUSE_KEYS_PAUSE))
.SetImage(image)
.SetBorder(views::CreateEmptyBorder(
gfx::Insets::VH(vertical_padding, horizontal_padding)))
.Build());
// Observe the accessibility controller state changes to know when mouse keys
// state is updated or when it is disabled/enabled.
Shell::Get()->accessibility_controller()->AddObserver(this);
GetViewAccessibility().SetName(l10n_util::GetStringUTF16(
IDS_ASH_STATUS_TRAY_ACCESSIBILITY_MOUSE_KEYS_PAUSE));
}
MouseKeysTray::~MouseKeysTray() {
// This may be called during shutdown in which case some of the
// ash objects may already be destroyed.
auto* shell = Shell::Get();
if (!shell) {
return;
}
auto* accessibility_controller = shell->accessibility_controller();
if (accessibility_controller) {
accessibility_controller->RemoveObserver(this);
}
}
void MouseKeysTray::OnMouseKeyIconPressed(const ui::Event& event) {
Shell::Get()->accessibility_controller()->ToggleMouseKeys();
}
void MouseKeysTray::Initialize() {
TrayBackgroundView::Initialize();
OnAccessibilityStatusChanged();
HandleLocaleChange();
}
void MouseKeysTray::HandleLocaleChange() {
UpdateStatus();
}
void MouseKeysTray::UpdateTrayItemColor(bool is_active) {
SetIsActive(is_active);
}
void MouseKeysTray::OnAccessibilityStatusChanged() {
UpdateStatus();
}
void MouseKeysTray::UpdateStatus() {
auto* mouse_keys_controller = Shell::Get()->mouse_keys_controller();
// Early exit if mouse_keys_controller is not available
if (!mouse_keys_controller) {
return;
}
bool is_mouse_keys_enabled = ::features::IsAccessibilityMouseKeysEnabled() &&
mouse_keys_controller->enabled();
SetVisiblePreferred(is_mouse_keys_enabled);
bool is_mouse_keys_active =
is_mouse_keys_enabled && !mouse_keys_controller->paused();
UpdateTrayItemColor(is_mouse_keys_active);
SetMouseKeysStatusText(is_mouse_keys_active);
}
void MouseKeysTray::SetMouseKeysStatusText(bool is_active) {
auto tooltip_string =
is_active ? l10n_util::GetStringUTF16(
IDS_ASH_STATUS_TRAY_ACCESSIBILITY_MOUSE_KEYS_PAUSE)
: l10n_util::GetStringUTF16(
IDS_ASH_STATUS_TRAY_ACCESSIBILITY_MOUSE_KEYS_RESUME);
GetViewAccessibility().SetName(tooltip_string);
GetIcon()->SetTooltipText(tooltip_string);
}
void MouseKeysTray::OnSessionStateChanged(session_manager::SessionState state) {
GetIcon()->SetImage(GetMouseKeysIcon());
}
base::WeakPtr<MouseKeysTray> MouseKeysTray::GetWeakPtr() {
return weak_ptr_factory_.GetWeakPtr();
}
views::ImageView* MouseKeysTray::GetIcon() {
return static_cast<views::ImageView*>(
tray_container()->GetViewByID(kMouseKeysTrayIconID));
}
BEGIN_METADATA(MouseKeysTray);
END_METADATA
} // namespace ash
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