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Unified Diff: ash/common/shelf/shelf_view.h

Issue 2736573002: chromeos: Move files in //ash/common to //ash, part 2 (Closed)
Patch Set: Created 3 years, 9 months ago
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Index: ash/common/shelf/shelf_view.h
diff --git a/ash/common/shelf/shelf_view.h b/ash/common/shelf/shelf_view.h
deleted file mode 100644
index 3f1858b5cdba4a162882e9eafa8b03466589b55e..0000000000000000000000000000000000000000
--- a/ash/common/shelf/shelf_view.h
+++ /dev/null
@@ -1,470 +0,0 @@
-// 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_SHELF_SHELF_VIEW_H_
-#define ASH_COMMON_SHELF_SHELF_VIEW_H_
-
-#include <memory>
-#include <string>
-#include <utility>
-#include <vector>
-
-#include "ash/common/shelf/ink_drop_button_listener.h"
-#include "ash/common/shelf/shelf_button_pressed_metric_tracker.h"
-#include "ash/common/shelf/shelf_item_delegate.h"
-#include "ash/common/shelf/shelf_model_observer.h"
-#include "ash/common/shelf/shelf_tooltip_manager.h"
-#include "base/macros.h"
-#include "third_party/skia/include/core/SkColor.h"
-#include "ui/app_list/views/app_list_drag_and_drop_host.h"
-#include "ui/views/animation/bounds_animator_observer.h"
-#include "ui/views/animation/ink_drop_state.h"
-#include "ui/views/context_menu_controller.h"
-#include "ui/views/controls/button/button.h"
-#include "ui/views/focus/focus_manager.h"
-#include "ui/views/view.h"
-#include "ui/views/view_model.h"
-
-namespace ui {
-class MenuModel;
-}
-
-namespace views {
-class BoundsAnimator;
-class MenuModelAdapter;
-class MenuRunner;
-}
-
-namespace ash {
-class AppListButton;
-class DragImageView;
-class OverflowBubble;
-class OverflowButton;
-class ScopedRootWindowForNewWindows;
-class ShelfButton;
-class ShelfDelegate;
-class ShelfModel;
-struct ShelfItem;
-class ShelfWidget;
-class WmShelf;
-
-namespace test {
-class ShelfViewTestAPI;
-}
-
-extern const int SHELF_ALIGNMENT_UMA_ENUM_VALUE_BOTTOM;
-extern const int SHELF_ALIGNMENT_UMA_ENUM_VALUE_LEFT;
-extern const int SHELF_ALIGNMENT_UMA_ENUM_VALUE_RIGHT;
-extern const int SHELF_ALIGNMENT_UMA_ENUM_VALUE_COUNT;
-
-class ASH_EXPORT ShelfView : public views::View,
- public ShelfModelObserver,
- public InkDropButtonListener,
- public views::ContextMenuController,
- public views::FocusTraversable,
- public views::BoundsAnimatorObserver,
- public app_list::ApplicationDragAndDropHost {
- public:
- ShelfView(ShelfModel* model,
- ShelfDelegate* delegate,
- WmShelf* wm_shelf,
- ShelfWidget* shelf_widget);
- ~ShelfView() override;
-
- WmShelf* wm_shelf() const { return wm_shelf_; }
- ShelfModel* model() const { return model_; }
-
- void Init();
-
- void OnShelfAlignmentChanged();
-
- // Returns the ideal bounds of the specified item, or an empty rect if id
- // isn't know. If the item is in an overflow shelf, the overflow icon location
- // will be returned.
- gfx::Rect GetIdealBoundsOfItemIcon(ShelfID id);
-
- // Repositions the icon for the specified item by the midpoint of the window.
- void UpdatePanelIconPosition(ShelfID id, const gfx::Point& midpoint);
-
- // Returns true if we're showing a menu.
- bool IsShowingMenu() const;
-
- // Returns true if overflow bubble is shown.
- bool IsShowingOverflowBubble() const;
-
- // Sets owner overflow bubble instance from which this shelf view pops
- // out as overflow.
- void set_owner_overflow_bubble(OverflowBubble* owner) {
- owner_overflow_bubble_ = owner;
- }
-
- AppListButton* GetAppListButton() const;
-
- // Returns true if the mouse cursor exits the area for launcher tooltip.
- // There are thin gaps between launcher buttons but the tooltip shouldn't hide
- // in the gaps, but the tooltip should hide if the mouse moved totally outside
- // of the buttons area.
- bool ShouldHideTooltip(const gfx::Point& cursor_location) const;
-
- // Returns true if a tooltip should be shown for the shelf item |view|.
- bool ShouldShowTooltipForView(const views::View* view) const;
-
- // Returns the title of the shelf item |view|.
- base::string16 GetTitleForView(const views::View* view) const;
-
- // Returns rectangle bounding all visible launcher items. Used screen
- // coordinate system.
- gfx::Rect GetVisibleItemsBoundsInScreen();
-
- // InkDropButtonListener:
- void ButtonPressed(views::Button* sender,
- const ui::Event& event,
- views::InkDrop* ink_drop) override;
-
- // Overridden from FocusTraversable:
- views::FocusSearch* GetFocusSearch() override;
- FocusTraversable* GetFocusTraversableParent() override;
- View* GetFocusTraversableParentView() override;
-
- // Overridden from app_list::ApplicationDragAndDropHost:
- void CreateDragIconProxy(const gfx::Point& location_in_screen_coordinates,
- const gfx::ImageSkia& icon,
- views::View* replaced_view,
- const gfx::Vector2d& cursor_offset_from_center,
- float scale_factor) override;
- void UpdateDragIconProxy(
- const gfx::Point& location_in_screen_coordinates) override;
- void DestroyDragIconProxy() override;
- bool StartDrag(const std::string& app_id,
- const gfx::Point& location_in_screen_coordinates) override;
- bool Drag(const gfx::Point& location_in_screen_coordinates) override;
- void EndDrag(bool cancel) override;
-
- // Returns true if |event| on the shelf item is going to activate the item.
- // Used to determine whether a pending ink drop should be shown or not.
- bool ShouldEventActivateButton(views::View* view, const ui::Event& event);
-
- // The shelf buttons use the Pointer interface to enable item reordering.
- enum Pointer { NONE, DRAG_AND_DROP, MOUSE, TOUCH };
- void PointerPressedOnButton(views::View* view,
- Pointer pointer,
- const ui::LocatedEvent& event);
- void PointerDraggedOnButton(views::View* view,
- Pointer pointer,
- const ui::LocatedEvent& event);
- void PointerReleasedOnButton(views::View* view,
- Pointer pointer,
- bool canceled);
-
- // Updates the background for the shelf items.
- void UpdateShelfItemBackground(SkColor color);
-
- // Return the view model for test purposes.
- const views::ViewModel* view_model_for_test() const {
- return view_model_.get();
- }
-
- private:
- friend class ash::test::ShelfViewTestAPI;
-
- class FadeOutAnimationDelegate;
- class StartFadeAnimationDelegate;
-
- struct IdealBounds {
- gfx::Rect overflow_bounds;
- };
-
- enum RemovableState {
- REMOVABLE, // Item can be removed when dragged away.
- DRAGGABLE, // Item can be dragged, but will snap always back to origin.
- NOT_REMOVABLE, // Item is fixed and can never be removed.
- };
-
- // Minimum distance before drag starts.
- static const int kMinimumDragDistance;
-
- // Returns true when this ShelfView is used for Overflow Bubble.
- // In this mode, it does not show app list, panel and overflow button.
- // Note:
- // * When Shelf can contain only one item (overflow button) due to very
- // small resolution screen, overflow bubble can show app list and panel
- // button.
- bool is_overflow_mode() const { return overflow_mode_; }
-
- bool dragging() const { return drag_pointer_ != NONE; }
-
- // Sets the bounds of each view to its ideal bounds.
- void LayoutToIdealBounds();
-
- // Update all button's visibility in overflow.
- void UpdateAllButtonsVisibilityInOverflowMode();
-
- // Calculates the ideal bounds. The bounds of each button corresponding to an
- // item in the model is set in |view_model_|.
- void CalculateIdealBounds(IdealBounds* bounds) const;
-
- // Returns the index of the last view whose max primary axis coordinate is
- // less than |max_value|. Returns -1 if nothing fits, or there are no views.
- int DetermineLastVisibleIndex(int max_value) const;
-
- // Returns the index of the first panel whose min primary axis coordinate is
- // at least |min_value|. Returns the index past the last panel if none fit.
- int DetermineFirstVisiblePanelIndex(int min_value) const;
-
- // Animates the bounds of each view to its ideal bounds.
- void AnimateToIdealBounds();
-
- // Creates the view used to represent |item|.
- views::View* CreateViewForItem(const ShelfItem& item);
-
- // Fades |view| from an opacity of 0 to 1. This is when adding a new item.
- void FadeIn(views::View* view);
-
- // Invoked when the pointer has moved enough to trigger a drag. Sets
- // internal state in preparation for the drag.
- void PrepareForDrag(Pointer pointer, const ui::LocatedEvent& event);
-
- // Invoked when the mouse is dragged. Updates the models as appropriate.
- void ContinueDrag(const ui::LocatedEvent& event);
-
- // Handles ripping off an item from the shelf. Returns true when the item got
- // removed.
- bool HandleRipOffDrag(const ui::LocatedEvent& event);
-
- // Finalize the rip off dragging by either |cancel| the action or validating.
- void FinalizeRipOffDrag(bool cancel);
-
- // Check if an item can be ripped off or not.
- RemovableState RemovableByRipOff(int index) const;
-
- // Returns true if |typea| and |typeb| should be in the same drag range.
- bool SameDragType(ShelfItemType typea, ShelfItemType typeb) const;
-
- // Returns the range (in the model) the item at the specified index can be
- // dragged to.
- std::pair<int, int> GetDragRange(int index);
-
- // If there is a drag operation in progress it's canceled. If |modified_index|
- // is valid, the new position of the corresponding item is returned.
- int CancelDrag(int modified_index);
-
- // Returns rectangle bounds used for drag insertion.
- // Note:
- // * When overflow button is visible, returns bounds from first item
- // to overflow button.
- // * When overflow button is visible and one or more panel items exists,
- // returns bounds from first item to last panel item.
- // * In the overflow mode, returns only bubble's bounds.
- gfx::Rect GetBoundsForDragInsertInScreen();
-
- // Common setup done for all children.
- void ConfigureChildView(views::View* view);
-
- // Toggles the overflow menu.
- void ToggleOverflowBubble();
-
- // Invoked after the fading out animation for item deletion is ended.
- void OnFadeOutAnimationEnded();
-
- // Fade in last visible item.
- void StartFadeInLastVisibleItem();
-
- // Updates the visible range of overflow items in |overflow_view|.
- void UpdateOverflowRange(ShelfView* overflow_view) const;
-
- // Overridden from views::View:
- gfx::Size GetPreferredSize() const override;
- void OnBoundsChanged(const gfx::Rect& previous_bounds) override;
- FocusTraversable* GetPaneFocusTraversable() override;
- void GetAccessibleNodeData(ui::AXNodeData* node_data) override;
- void ViewHierarchyChanged(
- const ViewHierarchyChangedDetails& details) override;
-
- // Overridden from ui::EventHandler:
- void OnGestureEvent(ui::GestureEvent* event) override;
-
- // Overridden from ShelfModelObserver:
- void ShelfItemAdded(int model_index) override;
- void ShelfItemRemoved(int model_index, ShelfID id) override;
- void ShelfItemChanged(int model_index, const ShelfItem& old_item) override;
- void ShelfItemMoved(int start_index, int target_index) override;
- void OnSetShelfItemDelegate(ShelfID id,
- ShelfItemDelegate* item_delegate) override;
-
- // Show a list of all running items for this shelf |item|; it only shows a
- // menu if there are multiple running items. |source| specifies the view
- // responsible for showing the menu, and the bubble will point towards it.
- // The |event_flags| are the flags of the event which triggered this menu.
- // Returns |true| if a menu is shown.
- bool ShowListMenuForView(const ShelfItem& item,
- views::View* source,
- const ui::Event& event,
- views::InkDrop* ink_drop);
-
- // Overridden from views::ContextMenuController:
- void ShowContextMenuForView(views::View* source,
- const gfx::Point& point,
- ui::MenuSourceType source_type) override;
-
- // Show either a context or normal click menu of given |menu_model|.
- // If |context_menu| is set, the displayed menu is a context menu and not
- // a menu listing one or more running applications.
- // The |click_point| is only used for |context_menu|'s.
- void ShowMenu(std::unique_ptr<ui::MenuModel> menu_model,
- views::View* source,
- const gfx::Point& click_point,
- bool context_menu,
- ui::MenuSourceType source_type,
- views::InkDrop* ink_drop);
-
- // Callback for MenuModelAdapter.
- void OnMenuClosed(views::InkDrop* ink_drop);
-
- // Overridden from views::BoundsAnimatorObserver:
- void OnBoundsAnimatorProgressed(views::BoundsAnimator* animator) override;
- void OnBoundsAnimatorDone(views::BoundsAnimator* animator) override;
-
- // Returns true if the (press down) |event| is a repost event from an event
- // which just closed the menu of a shelf item. If it occurs on the same shelf
- // item, we should ignore the call.
- bool IsRepostEvent(const ui::Event& event);
-
- // Convenience accessor to model_->items().
- const ShelfItem* ShelfItemForView(const views::View* view) const;
-
- // Get the distance from the given |coordinate| to the closest point on this
- // launcher/shelf.
- int CalculateShelfDistance(const gfx::Point& coordinate) const;
-
- // The model; owned by Launcher.
- ShelfModel* model_;
-
- // Delegate; owned by Launcher.
- ShelfDelegate* delegate_;
-
- // The shelf controller; owned by RootWindowController.
- WmShelf* wm_shelf_;
-
- // The shelf widget for this view. For overflow bubbles, this is the widget
- // for the shelf, not for the bubble.
- ShelfWidget* shelf_widget_;
-
- // Used to manage the set of active launcher buttons. There is a view per
- // item in |model_|.
- std::unique_ptr<views::ViewModel> view_model_;
-
- // Index of first visible launcher item.
- int first_visible_index_;
-
- // Last index of a launcher button that is visible
- // (does not go into overflow).
- mutable int last_visible_index_;
-
- std::unique_ptr<views::BoundsAnimator> bounds_animator_;
-
- OverflowButton* overflow_button_;
-
- std::unique_ptr<OverflowBubble> overflow_bubble_;
-
- OverflowBubble* owner_overflow_bubble_;
-
- ShelfTooltipManager tooltip_;
-
- // Pointer device that initiated the current drag operation. If there is no
- // current dragging operation, this is NONE.
- Pointer drag_pointer_;
-
- // The view being dragged. This is set immediately when the mouse is pressed.
- // |dragging_| is set only if the mouse is dragged far enough.
- ShelfButton* drag_view_;
-
- // Position of the mouse down event in |drag_view_|'s coordinates.
- gfx::Point drag_origin_;
-
- // Index |drag_view_| was initially at.
- int start_drag_index_;
-
- // Used for the context menu of a particular item.
- ShelfID context_menu_id_;
-
- std::unique_ptr<views::FocusSearch> focus_search_;
-
- // Manages the context menu, and the list menu.
- std::unique_ptr<ui::MenuModel> menu_model_;
- std::unique_ptr<views::MenuModelAdapter> menu_model_adapter_;
- std::unique_ptr<views::MenuRunner> launcher_menu_runner_;
- std::unique_ptr<ScopedRootWindowForNewWindows>
- scoped_root_window_for_new_windows_;
-
- // Amount content is inset on the left edge (or top edge for vertical
- // alignment).
- int leading_inset_;
-
- // True when an item being inserted or removed in the model cancels a drag.
- bool cancelling_drag_model_changed_;
-
- // Index of the last hidden launcher item. If there are no hidden items this
- // will be equal to last_visible_index_ + 1.
- mutable int last_hidden_index_;
-
- // The timestamp of the event which closed the last menu - or 0.
- base::TimeTicks closing_event_time_;
-
- // True if a drag and drop operation created/pinned the item in the launcher
- // and it needs to be deleted/unpinned again if the operation gets cancelled.
- bool drag_and_drop_item_pinned_;
-
- // The ShelfItem which is currently used for a drag and a drop operation
- // or 0 otherwise.
- ShelfID drag_and_drop_shelf_id_;
-
- // The application ID of the application which we drag and drop.
- std::string drag_and_drop_app_id_;
-
- // The original launcher item's size before the dragging operation.
- gfx::Size pre_drag_and_drop_size_;
-
- // The image proxy for drag operations when a drag and drop host exists and
- // the item can be dragged outside the app grid.
- std::unique_ptr<ash::DragImageView> drag_image_;
-
- // The cursor offset to the middle of the dragged item.
- gfx::Vector2d drag_image_offset_;
-
- // The view which gets replaced by our drag icon proxy.
- views::View* drag_replaced_view_;
-
- // True when the icon was dragged off the shelf.
- bool dragged_off_shelf_;
-
- // The rip off view when a snap back operation is underway.
- views::View* snap_back_from_rip_off_view_;
-
- // True when this ShelfView is used for Overflow Bubble.
- bool overflow_mode_;
-
- // Holds a pointer to main ShelfView when a ShelfView is in overflow mode.
- ShelfView* main_shelf_;
-
- // True when ripped item from overflow bubble is entered into Shelf.
- bool dragged_off_from_overflow_to_shelf_;
-
- // True if the event is a repost event from a event which has just closed the
- // menu of the same shelf item.
- bool is_repost_event_on_same_item_;
-
- // Record the index for the last pressed shelf item. This variable is used to
- // check if a repost event occurs on the same shelf item as previous one. If
- // so, the repost event should be ignored.
- int last_pressed_index_;
-
- // Tracks UMA metrics based on shelf button press actions.
- ShelfButtonPressedMetricTracker shelf_button_pressed_metric_tracker_;
-
- DISALLOW_COPY_AND_ASSIGN(ShelfView);
-};
-
-} // namespace ash
-
-#endif // ASH_COMMON_SHELF_SHELF_VIEW_H_
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