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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_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 "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(const StatusAreaWidgetDelegate&) = delete;
- StatusAreaWidgetDelegate& operator=(const StatusAreaWidgetDelegate&) = delete;
- ~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);
- // Clears most of the Widget to prevent destruction problems before ~Widget.
- void Shutdown();
- // views::AccessiblePaneView:
- void GetAccessibleNodeData(ui::AXNodeData* node_data) override;
- 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;
- };
- } // namespace ash
- #endif // ASH_SYSTEM_STATUS_AREA_WIDGET_DELEGATE_H_
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