Source/WebCore/platform/ios/wak/WAKClipView.m

/*
 * Copyright (C) 2008 Apple 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. 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 INC. 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 "config.h"
#import "WAKClipView.h"

#if PLATFORM(IOS_FAMILY)

#import "WAKViewInternal.h"
#import <wtf/Assertions.h>

@implementation WAKClipView

@synthesize documentView = _documentView;
@synthesize copiesOnScroll = _copiesOnScroll;

- (id)initWithFrame:(CGRect)rect
{
    WKViewRef view = WKViewCreateWithFrame(rect, &viewContext);
    self = [self _initWithViewRef:view];
    WKRelease(view);
    return self;
}

- (void)dealloc
{
    [_documentView release];
    [super dealloc];
}

// WAK internal function for WAKScrollView.
- (void)_setDocumentView:(WAKView *)aView
{
    if (_documentView == aView)
        return;

    [_documentView removeFromSuperview];
    [_documentView release];
    _documentView = [aView retain];
    [self addSubview:_documentView];
}

- (CGRect)documentVisibleRect 
{     
    if (_documentView)
        return WKViewConvertRectFromSuperview([_documentView _viewRef], [self bounds]);
    return CGRectZero;
}

@end

#endif // PLATFORM(IOS_FAMILY)