1 /* 2 * Copyright (C) 2005, 2008, 2010 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 // This is a Private header (containing SPI), despite the fact that its name 27 // does not contain the word Private. 28 29 #import <AppKit/NSScrollView.h> 30 31 // FIXME: <rdar://problem/5898985> Mail currently expects this header to define WebCoreScrollbarAlwaysOn. 32 extern const int WebCoreScrollbarAlwaysOn; 33 34 struct WebDynamicScrollBarsViewPrivate; 35 @interface WebDynamicScrollBarsView : NSScrollView { 36 @private 37 struct WebDynamicScrollBarsViewPrivate *_private; 38 39 #ifndef __OBJC2__ 40 // We need to pad the class out to its former size. See <rdar://problem/7814899> for more information. 41 char padding[16]; 42 #endif 43 } 44 45 // This was originally added for Safari's benefit, but Safari has not used it for a long time. 46 // Perhaps it can be removed. 47 - (void)setAllowsHorizontalScrolling:(BOOL)flag; 48 49 // Determines whether the scrollers should be drawn outside of the content (as in normal scroll views) 50 // or should overlap the content. 51 - (void)setAllowsScrollersToOverlapContent:(BOOL)flag; 52 53 // These methods hide the scrollers in a way that does not prevent scrolling. 54 - (void)setAlwaysHideHorizontalScroller:(BOOL)flag; 55 - (void)setAlwaysHideVerticalScroller:(BOOL)flag; 56 57 // These methods return YES if the scrollers are visible, or if the only reason that they are not 58 // visible is that they have been suppressed by setAlwaysHideHorizontal/VerticalScroller:. 59 - (BOOL)horizontalScrollingAllowed; 60 - (BOOL)verticalScrollingAllowed; 61 @end 62