WebKit/mac/WebView/WebDynamicScrollBarsView.h

/*
 * Copyright (C) 2005 Apple Computer, Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer. 
 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution. 
 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
 *     its contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission. 
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#import <AppKit/NSScrollView.h>

#import <WebCore/WebCoreFrameView.h>

// FIXME 2980779: This has grown to be more than just a dynamic scroll bar view,
// and it is no longer completely appropriate for use outside of WebKit.

@interface WebDynamicScrollBarsView : NSScrollView <WebCoreFrameView>
{
    WebCoreScrollbarMode hScroll;
    WebCoreScrollbarMode vScroll;
    BOOL hScrollModeLocked;
    BOOL vScrollModeLocked;
    BOOL suppressLayout;
    BOOL suppressScrollers;
    BOOL inUpdateScrollers;
}

- (void)setAllowsHorizontalScrolling:(BOOL)flag;
- (BOOL)allowsHorizontalScrolling;
- (void)setAllowsVerticalScrolling:(BOOL)flag;
- (BOOL)allowsVerticalScrolling;

- (void)setHorizontalScrollingMode:(WebCoreScrollbarMode)mode andLock:(BOOL)lock;
- (void)setVerticalScrollingMode:(WebCoreScrollbarMode)mode andLock:(BOOL)lock;
- (void)setScrollingMode:(WebCoreScrollbarMode)mode andLock:(BOOL)lock;

- (void)setHorizontalScrollingModeLocked:(BOOL)locked;
- (void)setVerticalScrollingModeLocked:(BOOL)locked;
- (void)setScrollingModesLocked:(BOOL)mode;

- (BOOL)horizontalScrollingModeLocked;
- (BOOL)verticalScrollingModeLocked;

// Convenience method to affect both scrolling directions at once.
- (void)setAllowsScrolling:(BOOL)flag;

// Returns YES if either horizontal or vertical scrolling is allowed.
- (BOOL)allowsScrolling;

- (void)updateScrollers;
- (void)setSuppressLayout: (BOOL)flag;
@end