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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 ASH_SYSTEM_ACCESSIBILITY_FACEGAZE_BUBBLE_VIEW_H_
#define ASH_SYSTEM_ACCESSIBILITY_FACEGAZE_BUBBLE_VIEW_H_
#include <string>
#include <string_view>
#include "ash/ash_export.h"
#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "ui/views/bubble/bubble_dialog_delegate_view.h"
#include "ui/views/metadata/view_factory.h"
#include "ui/views/view.h"
#include "ui/views/widget/widget.h"
namespace ui {
class MouseEvent;
} // namespace ui
namespace views {
class ImageView;
class Label;
} // namespace views
namespace ash {
class FaceGazeBubbleCloseView;
class FaceGazeBubbleMainContentView;
// The FaceGaze bubble view. This is a UI that appears at the top of the screen,
// which tells the user the most recently recognized facial gesture and the
// corresponding action that was taken. It also exposes a close button so that
// the feature can be conveniently turned off, if necessary. This view is only
// visible when the FaceGaze feature is enabled.
class ASH_EXPORT FaceGazeBubbleView : public views::BubbleDialogDelegateView {
METADATA_HEADER(FaceGazeBubbleView, views::BubbleDialogDelegateView)
public:
explicit FaceGazeBubbleView(
const base::RepeatingCallback<void()>& on_mouse_entered,
const base::RepeatingCallback<void(const ui::Event& event)>&
on_close_button_clicked);
FaceGazeBubbleView(const FaceGazeBubbleView&) = delete;
FaceGazeBubbleView& operator=(const FaceGazeBubbleView&) = delete;
~FaceGazeBubbleView() override;
// Updates text content of this view.
void Update(const std::u16string& text, bool is_warning);
std::u16string_view GetTextForTesting() const;
const raw_ptr<FaceGazeBubbleCloseView> GetCloseViewForTesting() const {
return close_view_;
}
private:
friend class FaceGazeBubbleControllerTest;
friend class FaceGazeBubbleTestHelper;
// Updates color of this view.
void UpdateColor(bool is_warning);
// The view containing the main content, such as the FaceGaze icon and the
// informational text. Owned by the views hierarchy.
raw_ptr<FaceGazeBubbleMainContentView> main_content_view_ = nullptr;
// The view containing the close button, which can be used to quickly turn
// FaceGaze off. Owned by the views hierarchy.
raw_ptr<FaceGazeBubbleCloseView> close_view_ = nullptr;
};
// The main content view. This is the part of the bubble UI that tells the user
// the most recently recognized facial gesture and the corresponding action that
// was taken.
class ASH_EXPORT FaceGazeBubbleMainContentView : public views::View {
METADATA_HEADER(FaceGazeBubbleMainContentView, views::View)
public:
FaceGazeBubbleMainContentView(
const base::RepeatingCallback<void()>& on_mouse_entered);
FaceGazeBubbleMainContentView(const FaceGazeBubbleMainContentView&) = delete;
FaceGazeBubbleMainContentView& operator=(
const FaceGazeBubbleMainContentView&) = delete;
~FaceGazeBubbleMainContentView() override;
// views::View:
void OnMouseEntered(const ui::MouseEvent& event) override;
// Updates the text content, visibility, and color of this view.
void Update(const std::u16string& text, bool is_warning);
views::Label* label() { return label_; }
private:
// Updates color of this view.
void UpdateColor(bool is_warning);
// Custom callback that is called whenever the mouse enters or exits this
// view.
const base::RepeatingCallback<void()> on_mouse_entered_;
// An image that displays the FaceGaze logo.
raw_ptr<views::ImageView> image_ = nullptr;
// A label that displays the most recently recognized gesture and
// corresponding action.
raw_ptr<views::Label> label_ = nullptr;
};
// The close button view. It contains the button used to quickly toggle
// FaceGaze off.
class ASH_EXPORT FaceGazeBubbleCloseView : public views::View {
METADATA_HEADER(FaceGazeBubbleCloseView, views::View)
public:
FaceGazeBubbleCloseView(
const base::RepeatingCallback<void(const ui::Event& event)>&
on_close_button_clicked);
FaceGazeBubbleCloseView(const FaceGazeBubbleCloseView&) = delete;
FaceGazeBubbleCloseView& operator=(const FaceGazeBubbleCloseView&) = delete;
~FaceGazeBubbleCloseView() override;
// views::View:
bool OnMousePressed(const ui::MouseEvent& event) override;
private:
// Custom callback that is called whenever the close button is clicked.
const base::RepeatingCallback<void(const ui::Event& event)>
on_close_button_clicked_;
// The close 'X' image.
raw_ptr<views::ImageView> close_button_ = nullptr;
};
} // namespace ash
#endif // ASH_SYSTEM_ACCESSIBILITY_FACEGAZE_BUBBLE_VIEW_H_
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