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// Copyright 2020 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/switch_access/switch_access_menu_bubble_controller.h"
#include "ash/bubble/bubble_constants.h"
#include "ash/public/cpp/shell_window_ids.h"
#include "ash/shell.h"
#include "ash/system/accessibility/switch_access/switch_access_back_button_bubble_controller.h"
#include "ash/system/accessibility/switch_access/switch_access_menu_view.h"
#include "ash/system/tray/tray_background_view.h"
#include "ash/system/tray/tray_constants.h"
#include "ash/wm/collision_detection/collision_detection_utils.h"
#include "ui/accessibility/ax_enums.mojom.h"
#include "ui/compositor/layer.h"
#include "ui/views/border.h"
namespace ash {
SwitchAccessMenuBubbleController::SwitchAccessMenuBubbleController()
: back_button_controller_(
std::make_unique<SwitchAccessBackButtonBubbleController>()) {}
SwitchAccessMenuBubbleController::~SwitchAccessMenuBubbleController() {
if (widget_ && !widget_->IsClosed())
widget_->CloseNow();
}
void SwitchAccessMenuBubbleController::ShowBackButton(const gfx::Rect& anchor) {
back_button_controller_->ShowBackButton(anchor, /*show_focus_ring=*/true,
menu_open_);
}
void SwitchAccessMenuBubbleController::ShowMenu(
const gfx::Rect& anchor,
const std::vector<std::string>& actions_to_show) {
menu_open_ = true;
if (!widget_) {
TrayBubbleView::InitParams init_params;
init_params.delegate = GetWeakPtr();
// Anchor within the overlay container.
init_params.parent_window =
Shell::GetContainer(Shell::GetPrimaryRootWindow(),
kShellWindowId_AccessibilityBubbleContainer);
init_params.anchor_mode = TrayBubbleView::AnchorMode::kRect;
init_params.is_anchored_to_status_area = false;
init_params.insets =
gfx::Insets::VH(kBubbleMenuPadding, kBubbleMenuPadding);
init_params.translucent = true;
init_params.type = TrayBubbleView::TrayBubbleType::kAccessibilityBubble;
bubble_view_ = new TrayBubbleView(init_params);
bubble_view_->SetArrow(views::BubbleBorder::Arrow::TOP_LEFT);
menu_view_ = new SwitchAccessMenuView();
menu_view_->SetBorder(views::CreateEmptyBorder(kBubbleMenuPadding));
bubble_view_->AddChildViewRaw(menu_view_.get());
widget_ = views::BubbleDialogDelegateView::CreateBubble(bubble_view_);
TrayBackgroundView::InitializeBubbleAnimations(widget_);
bubble_view_->InitializeAndShowBubble();
CollisionDetectionUtils::MarkWindowPriorityForCollisionDetection(
widget_->GetNativeWindow(),
CollisionDetectionUtils::RelativePriority::kSwitchAccessMenu);
}
DCHECK(bubble_view_);
menu_view_->SetActions(actions_to_show);
bubble_view_->SetPreferredWidth(menu_view_->GetBubbleWidthDip());
bubble_view_->ChangeAnchorRect(anchor);
gfx::Rect new_bounds = widget_->GetWindowBoundsInScreen();
// Adjust the bounds to fit entirely within the screen.
gfx::Rect display_bounds =
display::Screen::GetScreen()->GetDisplayMatching(new_bounds).bounds();
new_bounds.AdjustToFit(display_bounds);
// Update the preferred bounds based on other system windows.
gfx::Rect resting_bounds = CollisionDetectionUtils::AvoidObstacles(
display::Screen::GetScreen()->GetDisplayNearestWindow(
widget_->GetNativeWindow()),
new_bounds, CollisionDetectionUtils::RelativePriority::kSwitchAccessMenu);
widget_->SetBounds(resting_bounds);
widget_->Show();
bubble_view_->NotifyAccessibilityEventDeprecated(
ax::mojom::Event::kChildrenChanged, true);
// The resting bounds includes padding on each side of the menu.
// Remove that before passing to the back button controller so the back button
// appears in the correct position.
resting_bounds.Inset(kBubbleMenuPadding);
back_button_controller_->ShowBackButton(resting_bounds,
/*show_focus_ring=*/false,
/*for_menu=*/true);
}
void SwitchAccessMenuBubbleController::HideBackButton() {
if (widget_ && widget_->IsVisible())
back_button_controller_->HideFocusRing();
else
back_button_controller_->Hide();
}
void SwitchAccessMenuBubbleController::HideMenuBubble() {
menu_open_ = false;
back_button_controller_->Hide();
if (widget_)
widget_->Hide();
if (bubble_view_)
bubble_view_->NotifyAccessibilityEventDeprecated(
ax::mojom::Event::kChildrenChanged, true);
}
void SwitchAccessMenuBubbleController::BubbleViewDestroyed() {
bubble_view_ = nullptr;
menu_view_ = nullptr;
widget_ = nullptr;
}
void SwitchAccessMenuBubbleController::HideBubble(
const TrayBubbleView* bubble_view) {
// This function is currently not unused for bubbles of type
// `kAccessibilityBubble`, so can leave this empty.
}
} // namespace ash
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