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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_COMMON_SYSTEM_STATUS_AREA_WIDGET_DELEGATE_H_
#define ASH_COMMON_SYSTEM_STATUS_AREA_WIDGET_DELEGATE_H_
#include "ash/ash_export.h"
#include "ash/public/cpp/shelf_types.h"
#include "base/macros.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/views/accessible_pane_view.h"
#include "ui/views/widget/widget_delegate.h"
namespace ash {
class FocusCycler;
// The View for the status area widget.
class ASH_EXPORT StatusAreaWidgetDelegate : public views::AccessiblePaneView,
public views::WidgetDelegate {
public:
StatusAreaWidgetDelegate();
~StatusAreaWidgetDelegate() override;
// Add a tray view to the widget (e.g. system tray, web notifications).
void AddTray(views::View* tray);
// Called whenever layout might change (e.g. alignment changed).
void UpdateLayout();
// Sets the focus cycler.
void SetFocusCyclerForTesting(const FocusCycler* focus_cycler);
void set_alignment(ShelfAlignment alignment) { alignment_ = alignment; }
void set_custom_focus_traversable(
views::FocusTraversable* custom_focus_traversable) {
custom_focus_traversable_ = custom_focus_traversable;
}
void set_default_last_focusable_child(bool default_last_focusable_child) {
default_last_focusable_child_ = default_last_focusable_child;
}
// Overridden from views::AccessiblePaneView.
View* GetDefaultFocusableChild() override;
views::FocusSearch* GetFocusSearch() override;
views::FocusTraversable* GetFocusTraversableParent() override;
views::View* GetFocusTraversableParentView() override;
// Overridden from views::View:
views::Widget* GetWidget() override;
const views::Widget* GetWidget() const override;
// Overridden from ui::EventHandler:
void OnGestureEvent(ui::GestureEvent* event) override;
// views::WidgetDelegate overrides:
bool CanActivate() const override;
void DeleteDelegate() override;
protected:
// Overridden from views::View:
void ChildPreferredSizeChanged(views::View* child) override;
void ChildVisibilityChanged(views::View* child) override;
private:
void UpdateWidgetSize();
// Sets a border on |child|. If |extend_border_to_edge| is true, then an extra
// wide border is added to extend the view's hit region to the edge of the
// screen.
void SetBorderOnChild(views::View* child, bool extend_border_to_edge);
views::FocusTraversable* custom_focus_traversable_ = nullptr;
// When true, the default focus of the status area widget is the last
// focusable child.
bool default_last_focusable_child_ = false;
const FocusCycler* focus_cycler_for_testing_;
// TODO(jamescook): Get this from WmShelf.
ShelfAlignment alignment_;
DISALLOW_COPY_AND_ASSIGN(StatusAreaWidgetDelegate);
};
} // namespace ash
#endif // ASH_COMMON_SYSTEM_STATUS_AREA_WIDGET_DELEGATE_H_