| // 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_ |