1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef UI_APP_LIST_COCOA_ITEM_DRAG_CONTROLLER_H_ 6 #define UI_APP_LIST_COCOA_ITEM_DRAG_CONTROLLER_H_ 7 8 #import <Cocoa/Cocoa.h> 9 #import <QuartzCore/QuartzCore.h> 10 11 #include "base/mac/scoped_nsobject.h" 12 13 @class AppsGridViewItem; 14 15 // Controller to manage the animations and transient views that are used when 16 // dragging an app list item around the app list grid. When initiated, the item 17 // image (only) is grown in an animation, and sticks to the mouse cursor. When 18 // released, the label is added to the image and it shrinks and moves to the 19 // item location in the grid. 20 @interface ItemDragController : NSViewController { 21 @private 22 base::scoped_nsobject<CALayer> dragLayer_; 23 base::scoped_nsobject<NSButton> buttonToRestore_; 24 NSPoint mouseOffset_; 25 NSTimeInterval growStart_; 26 BOOL shrinking_; 27 } 28 29 - (id)initWithGridCellSize:(NSSize)size; 30 31 - (void)initiate:(AppsGridViewItem*)item 32 mouseDownLocation:(NSPoint)mouseDownLocation 33 currentLocation:(NSPoint)currentLocation 34 timestamp:(NSTimeInterval)eventTimestamp; 35 36 - (void)update:(NSPoint)currentLocation 37 timestamp:(NSTimeInterval)eventTimestamp; 38 39 - (void)complete:(AppsGridViewItem*)item 40 targetOrigin:(NSPoint)targetOrigin; 41 42 @end 43 44 #endif // UI_APP_LIST_COCOA_ITEM_DRAG_CONTROLLER_H_ 45
