| // Copyright 2013 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 UI_APP_LIST_COCOA_APPS_COLLECTION_VIEW_DRAG_MANAGER_H_ |
| #define UI_APP_LIST_COCOA_APPS_COLLECTION_VIEW_DRAG_MANAGER_H_ |
| |
| #import <Cocoa/Cocoa.h> |
| |
| #include "base/mac/scoped_nsobject.h" |
| #include "ui/app_list/app_list_export.h" |
| |
| @class AppsGridController; |
| @class ItemDragController; |
| |
| // Manager for the state associated with dragging an NSCollectionViewItem in the |
| // AppsGridController. It is also a factory for the NSCollectionView pages in |
| // the grid, allowing items to be dragged between pages. |
| APP_LIST_EXPORT |
| @interface AppsCollectionViewDragManager : NSObject { |
| @private |
| base::scoped_nsobject<ItemDragController> itemDragController_; |
| AppsGridController* gridController_; // Weak. Owns us. |
| |
| NSSize cellSize_; |
| size_t rows_; |
| size_t columns_; |
| |
| // Index of the last known position of the item currently being dragged. |
| size_t itemDragIndex_; |
| |
| // Model index of the item being dragged, or NSNotFound if nothing was hit on |
| // the last mouseDown. |
| size_t itemHitIndex_; |
| |
| // Location in the window of the last mouseDown event. |
| NSPoint mouseDownLocation_; |
| |
| // Whether the current mouse action has converted into an item drag. |
| BOOL dragging_; |
| } |
| |
| - (id)initWithCellSize:(NSSize)cellSize |
| rows:(size_t)rows |
| columns:(size_t)columns |
| gridController:(AppsGridController*)gridController; |
| |
| // Make an empty NSCollectionView with draggable items in the given |pageFrame|. |
| - (NSCollectionView*)makePageWithFrame:(NSRect)pageFrame; |
| |
| - (void)cancelDrag; |
| |
| @end |
| |
| @interface AppsCollectionViewDragManager (TestingAPI) |
| |
| - (void)onMouseDownInPage:(NSCollectionView*)page |
| withEvent:(NSEvent*)theEvent; |
| - (void)onMouseDragged:(NSEvent*)theEvent; |
| - (void)onMouseUp:(NSEvent*)theEvent; |
| |
| @end |
| |
| #endif // UI_APP_LIST_COCOA_APPS_COLLECTION_VIEW_DRAG_MANAGER_H_ |