blob: d78d954764a1f80e55ab47c4159d8f9238cc6c10 [file] [log] [blame]
// 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_SYSTEM_STATUS_AREA_WIDGET_DELEGATE_H_
#define ASH_SYSTEM_STATUS_AREA_WIDGET_DELEGATE_H_
#include "ash/ash_export.h"
#include "ash/public/cpp/shelf_config.h"
#include "ash/public/cpp/shelf_types.h"
#include "ash/system/status_area_widget.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;
class Shelf;
// The View for the status area widget.
class ASH_EXPORT StatusAreaWidgetDelegate : public views::AccessiblePaneView,
public views::WidgetDelegate {
public:
explicit StatusAreaWidgetDelegate(Shelf* shelf);
~StatusAreaWidgetDelegate() override;
// Calculates the bounds that this view should have given its constraints,
// but does not actually update bounds yet.
void CalculateTargetBounds();
// Returns the bounds that this view should have given its constraints.
gfx::Rect GetTargetBounds() const;
// Performs the actual changes in bounds for this view to match its target
// bounds.
void UpdateLayout(bool animate);
// Sets the focus cycler.
void SetFocusCyclerForTesting(const FocusCycler* focus_cycler);
// If |reverse|, indicates backward focusing, otherwise forward focusing.
// Returns true if status area widget delegate should focus out on the
// designated focusing direction, otherwise false.
bool ShouldFocusOut(bool reverse);
// Called by StatusAreaWidget when its collapse state changes.
void OnStatusAreaCollapseStateChanged(
StatusAreaWidget::CollapseState new_collapse_state);
// views::AccessiblePaneView:
View* GetDefaultFocusableChild() override;
const char* GetClassName() const override;
views::Widget* GetWidget() override;
const views::Widget* GetWidget() const override;
// ui::EventHandler:
void OnGestureEvent(ui::GestureEvent* event) override;
// views::WidgetDelegate:
bool CanActivate() const override;
void set_default_last_focusable_child(bool default_last_focusable_child) {
default_last_focusable_child_ = default_last_focusable_child;
}
protected:
// views::View:
void ChildPreferredSizeChanged(views::View* child) override;
void ChildVisibilityChanged(views::View* child) override;
private:
// 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);
Shelf* const shelf_;
const FocusCycler* focus_cycler_for_testing_;
gfx::Rect target_bounds_;
// When true, the default focus of the status area widget is the last
// focusable child.
bool default_last_focusable_child_ = false;
DISALLOW_COPY_AND_ASSIGN(StatusAreaWidgetDelegate);
};
} // namespace ash
#endif // ASH_SYSTEM_STATUS_AREA_WIDGET_DELEGATE_H_