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Unified Diff: ash/system/tray/tray_background_view.h

Issue 2095663004: Revert of mash: Convert TrayBackgroundView to wm common types (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 6 months ago
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Index: ash/system/tray/tray_background_view.h
diff --git a/ash/system/tray/tray_background_view.h b/ash/system/tray/tray_background_view.h
new file mode 100644
index 0000000000000000000000000000000000000000..92fd9b21f9df28a0c43451e35e651a81c42edf5d
--- /dev/null
+++ b/ash/system/tray/tray_background_view.h
@@ -0,0 +1,186 @@
+// 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_TRAY_TRAY_BACKGROUND_VIEW_H_
+#define ASH_SYSTEM_TRAY_TRAY_BACKGROUND_VIEW_H_
+
+#include <memory>
+
+#include "ash/ash_export.h"
+#include "ash/common/shelf/shelf_types.h"
+#include "ash/common/system/tray/actionable_view.h"
+#include "ash/common/wm/background_animator.h"
+#include "base/macros.h"
+#include "ui/compositor/layer_animation_observer.h"
+#include "ui/views/bubble/tray_bubble_view.h"
+
+namespace ash {
+class ShelfLayoutManager;
+class StatusAreaWidget;
+class TrayEventFilter;
+class TrayBackground;
+class WmShelf;
+
+// Base class for children of StatusAreaWidget: SystemTray, WebNotificationTray,
+// LogoutButtonTray, OverviewButtonTray.
+// This class handles setting and animating the background when the Launcher
+// his shown/hidden. It also inherits from ActionableView so that the tray
+// items can override PerformAction when clicked on.
+class ASH_EXPORT TrayBackgroundView : public ActionableView,
+ public BackgroundAnimatorDelegate,
+ public ui::ImplicitAnimationObserver {
+ public:
+ static const char kViewClassName[];
+
+ // Base class for tray containers. Sets the border and layout. The container
+ // auto-resizes the widget when necessary.
+ class TrayContainer : public views::View {
+ public:
+ explicit TrayContainer(ShelfAlignment alignment);
+ ~TrayContainer() override {}
+
+ void SetAlignment(ShelfAlignment alignment);
+
+ void set_size(const gfx::Size& size) { size_ = size; }
+
+ // views::View:
+ gfx::Size GetPreferredSize() const override;
+
+ protected:
+ // views::View:
+ void ChildPreferredSizeChanged(views::View* child) override;
+ void ChildVisibilityChanged(View* child) override;
+ void ViewHierarchyChanged(
+ const ViewHierarchyChangedDetails& details) override;
+
+ private:
+ void UpdateLayout();
+
+ ShelfAlignment alignment_;
+ gfx::Size size_;
+
+ DISALLOW_COPY_AND_ASSIGN(TrayContainer);
+ };
+
+ explicit TrayBackgroundView(StatusAreaWidget* status_area_widget);
+ ~TrayBackgroundView() override;
+
+ // Called after the tray has been added to the widget containing it.
+ virtual void Initialize();
+
+ // Initializes animations for the bubble.
+ static void InitializeBubbleAnimations(views::Widget* bubble_widget);
+
+ // views::View:
+ void SetVisible(bool visible) override;
+ const char* GetClassName() const override;
+ void ChildPreferredSizeChanged(views::View* child) override;
+ void GetAccessibleState(ui::AXViewState* state) override;
+ void AboutToRequestFocusFromTabTraversal(bool reverse) override;
+
+ // ActionableView:
+ bool PerformAction(const ui::Event& event) override;
+ gfx::Rect GetFocusBounds() override;
+ void OnGestureEvent(ui::GestureEvent* event) override;
+
+ // BackgroundAnimatorDelegate:
+ void UpdateBackground(int alpha) override;
+
+ // Called whenever the shelf alignment changes.
+ virtual void SetShelfAlignment(ShelfAlignment alignment);
+
+ // Called when the anchor (tray or bubble) may have moved or changed.
+ virtual void AnchorUpdated() {}
+
+ // Called from GetAccessibleState, must return a valid accessible name.
+ virtual base::string16 GetAccessibleNameForTray() = 0;
+
+ // Called when the bubble is resized.
+ virtual void BubbleResized(const views::TrayBubbleView* bubble_view) {}
+
+ // Hides the bubble associated with |bubble_view|. Called when the widget
+ // is closed.
+ virtual void HideBubbleWithView(const views::TrayBubbleView* bubble_view) = 0;
+
+ // Called by the bubble wrapper when a click event occurs outside the bubble.
+ // May close the bubble.
+ virtual void ClickedOutsideBubble() = 0;
+
+ // Sets |contents| as a child.
+ void SetContents(views::View* contents);
+
+ // Creates and sets contents background to |background_|.
+ void SetContentsBackground();
+
+ // Returns the anchor rect for the bubble.
+ gfx::Rect GetBubbleAnchorRect(
+ views::Widget* anchor_widget,
+ views::TrayBubbleView::AnchorType anchor_type,
+ views::TrayBubbleView::AnchorAlignment anchor_alignment) const;
+
+ // Returns the bubble anchor alignment based on |shelf_alignment_|.
+ views::TrayBubbleView::AnchorAlignment GetAnchorAlignment() const;
+
+ // Forces the background to be drawn active if set to true.
+ void SetDrawBackgroundAsActive(bool visible);
+
+ // Returns true when the the background was overridden to be drawn as active.
+ bool draw_background_as_active() const {return draw_background_as_active_; }
+
+ StatusAreaWidget* status_area_widget() {
+ return status_area_widget_;
+ }
+ const StatusAreaWidget* status_area_widget() const {
+ return status_area_widget_;
+ }
+ TrayContainer* tray_container() const { return tray_container_; }
+ ShelfAlignment shelf_alignment() const { return shelf_alignment_; }
+ TrayEventFilter* tray_event_filter() { return tray_event_filter_.get(); }
+
+ WmShelf* GetShelf();
+
+ // Updates the arrow visibility based on the launcher visibility.
+ void UpdateBubbleViewArrow(views::TrayBubbleView* bubble_view);
+
+ private:
+ class TrayWidgetObserver;
+
+ // Called from Initialize after all status area trays have been created.
+ // Sets the border based on the position of the view.
+ void SetTrayBorder();
+
+ // ui::ImplicitAnimationObserver:
+ void OnImplicitAnimationsCompleted() override;
+ bool RequiresNotificationWhenAnimatorDestroyed() const override;
+
+ // Applies transformations to the |layer()| to animate the view when
+ // SetVisible(false) is called.
+ void HideTransformation();
+
+ // Unowned pointer to parent widget.
+ StatusAreaWidget* status_area_widget_;
+
+ // Convenience pointer to the contents view.
+ TrayContainer* tray_container_;
+
+ // Shelf alignment.
+ // TODO(jamescook): Don't cache this, get it from WmShelf.
+ ShelfAlignment shelf_alignment_;
+
+ // Owned by the view passed to SetContents().
+ TrayBackground* background_;
+
+ // This variable stores the activation override which will tint the background
+ // differently if set to true.
+ bool draw_background_as_active_;
+
+ std::unique_ptr<TrayWidgetObserver> widget_observer_;
+ std::unique_ptr<TrayEventFilter> tray_event_filter_;
+
+ DISALLOW_COPY_AND_ASSIGN(TrayBackgroundView);
+};
+
+} // namespace ash
+
+#endif // ASH_SYSTEM_TRAY_TRAY_BACKGROUND_VIEW_H_
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