blob: ed9a94f5781d4ae49f3f5b5dd4a7812aa5841732 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
// Copyright (c) 2010 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.
#import <Cocoa/Cocoa.h>
// Class for buttons that can be drag sources. If the mouse is clicked and moved
// more than a given distance, this class will call |-beginDrag:| instead of
// |-performClick:|. Subclasses should override these two methods.
@interface DraggableButton : NSButton {
@private
BOOL draggable_; // Is this a draggable type of button?
BOOL mayDragStart_; // Set to YES on mouse down, NO on up or drag.
BOOL beingDragged_;
// Initial mouse-down to prevent a hair-trigger drag.
NSPoint initialMouseDownLocation_;
}
// Enable or disable dragability for special buttons like "Other Bookmarks".
@property BOOL draggable;
// Called when a drag starts. Subclasses must override this.
- (void)beginDrag:(NSEvent*)dragEvent;
// Subclasses should call this method to notify DraggableButton when a drag is
// over.
- (void)endDrag;
@end // @interface DraggableButton
|
