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
