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_SCROLL_VIEW_WITH_NO_SCROLLBARS_H_ 6#define UI_APP_LIST_COCOA_SCROLL_VIEW_WITH_NO_SCROLLBARS_H_ 7 8#include <Cocoa/Cocoa.h> 9 10// Delegate to notify when a user interaction to scroll completes. 11@protocol GestureScrollDelegate 12 13// Called when a scroll gesture is observed, or when it completes. 14- (void)userScrolling:(BOOL)isScrolling; 15 16@end 17 18// NSScrollView has a quirk when created programatically that causes gesture 19// scrolling to fail if it does not have a scroll bar. This provides a scroll 20// view using custom scrollers that are not visible. 21@interface ScrollViewWithNoScrollbars : NSScrollView { 22 @private 23 id<GestureScrollDelegate> delegate_; 24} 25 26@property(assign, nonatomic) id<GestureScrollDelegate> delegate; 27 28@end 29 30#endif // UI_APP_LIST_COCOA_SCROLL_VIEW_WITH_NO_SCROLLBARS_H_ 31