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// 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_ITEM_DRAG_WINDOW_CONTROLLER_H_
#define UI_APP_LIST_COCOA_ITEM_DRAG_WINDOW_CONTROLLER_H_
#import <Cocoa/Cocoa.h>
#import <QuartzCore/QuartzCore.h>
#include "base/mac/scoped_nsobject.h"
@class AppsGridViewItem;
// Controller to manage the animations and transient views that are used when
// dragging an app list item around the app list grid. When initiated, the item
// image (only) is grown in an animation, and sticks to the mouse cursor. When
// released, the label is added to the image and it shrinks and moves to the
// item location in the grid.
@interface ItemDragController : NSViewController {
@private
base::scoped_nsobject<CALayer> dragLayer_;
base::scoped_nsobject<NSButton> buttonToRestore_;
NSPoint mouseOffset_;
NSTimeInterval growStart_;
BOOL shrinking_;
}
- (id)initWithGridCellSize:(NSSize)size;
- (void)initiate:(AppsGridViewItem*)item
mouseDownLocation:(NSPoint)mouseDownLocation
currentLocation:(NSPoint)currentLocation
timestamp:(NSTimeInterval)eventTimestamp;
- (void)update:(NSPoint)currentLocation
timestamp:(NSTimeInterval)eventTimestamp;
- (void)complete:(AppsGridViewItem*)item
targetOrigin:(NSPoint)targetOrigin;
@end
#endif // UI_APP_LIST_COCOA_ITEM_DRAG_WINDOW_CONTROLLER_H_
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