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/*
* Copyright (C) 2004, 2006, 2007, 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 COMPUTER, INC. ``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 COMPUTER, INC. OR
* 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 "ScrollView.h"
#import "BlockExceptions.h"
#import "FloatRect.h"
#import "IntRect.h"
#import "Logging.h"
#import "NotImplemented.h"
#import "WebCoreFrameView.h"
using namespace std;
@interface NSWindow (WebWindowDetails)
- (BOOL)_needsToResetDragMargins;
- (void)_setNeedsToResetDragMargins:(BOOL)needs;
@end
namespace WebCore {
inline NSScrollView<WebCoreFrameScrollView> *ScrollView::scrollView() const
{
ASSERT(!platformWidget() || [platformWidget() isKindOfClass:[NSScrollView class]]);
ASSERT(!platformWidget() || [platformWidget() conformsToProtocol:@protocol(WebCoreFrameScrollView)]);
return static_cast<NSScrollView<WebCoreFrameScrollView> *>(platformWidget());
}
NSView *ScrollView::documentView() const
{
BEGIN_BLOCK_OBJC_EXCEPTIONS;
return [scrollView() documentView];
END_BLOCK_OBJC_EXCEPTIONS;
return nil;
}
void ScrollView::platformAddChild(Widget* child)
{
BEGIN_BLOCK_OBJC_EXCEPTIONS;
NSView *parentView = documentView();
NSView *childView = child->getOuterView();
ASSERT(![parentView isDescendantOf:childView]);
// Suppress the resetting of drag margins since we know we can't affect them.
NSWindow *window = [parentView window];
BOOL resetDragMargins = [window _needsToResetDragMargins];
[window _setNeedsToResetDragMargins:NO];
if ([childView superview] != parentView)
[parentView addSubview:childView];
[window _setNeedsToResetDragMargins:resetDragMargins];
END_BLOCK_OBJC_EXCEPTIONS;
}
void ScrollView::platformRemoveChild(Widget* child)
{
child->removeFromSuperview();
}
void ScrollView::platformSetScrollbarModes()
{
BEGIN_BLOCK_OBJC_EXCEPTIONS;
[scrollView() setScrollingModes:m_horizontalScrollbarMode vertical:m_verticalScrollbarMode andLock:NO];
END_BLOCK_OBJC_EXCEPTIONS;
}
void ScrollView::platformScrollbarModes(ScrollbarMode& horizontal, ScrollbarMode& vertical) const
{
BEGIN_BLOCK_OBJC_EXCEPTIONS;
[scrollView() scrollingModes:&horizontal vertical:&vertical];
END_BLOCK_OBJC_EXCEPTIONS;
}
void ScrollView::platformSetCanBlitOnScroll(bool canBlitOnScroll)
{
BEGIN_BLOCK_OBJC_EXCEPTIONS;
[[scrollView() contentView] setCopiesOnScroll:canBlitOnScroll];
END_BLOCK_OBJC_EXCEPTIONS;
}
bool ScrollView::platformCanBlitOnScroll() const
{
return [[scrollView() contentView] copiesOnScroll];
}
IntRect ScrollView::platformVisibleContentRect(bool includeScrollbars) const
{
BEGIN_BLOCK_OBJC_EXCEPTIONS;
IntRect result = enclosingIntRect([scrollView() documentVisibleRect]);
if (includeScrollbars)
result.setSize(IntSize([scrollView() frame].size));
return result;
END_BLOCK_OBJC_EXCEPTIONS;
return IntRect();
}
IntSize ScrollView::platformContentsSize() const
{
BEGIN_BLOCK_OBJC_EXCEPTIONS;
if (NSView* documentView = this->documentView())
return enclosingIntRect([documentView bounds]).size();
END_BLOCK_OBJC_EXCEPTIONS;
return IntSize();
}
void ScrollView::platformSetContentsSize()
{
BEGIN_BLOCK_OBJC_EXCEPTIONS;
int w = m_contentsSize.width();
int h = m_contentsSize.height();
LOG(Frames, "%p %@ at w %d h %d\n", documentView(), [(id)[documentView() class] className], w, h);
NSSize tempSize = { max(0, w), max(0, h) }; // workaround for 4213314
[documentView() setFrameSize:tempSize];
END_BLOCK_OBJC_EXCEPTIONS;
}
void ScrollView::platformSetScrollbarsSuppressed(bool repaintOnUnsuppress)
{
BEGIN_BLOCK_OBJC_EXCEPTIONS;
[scrollView() setScrollBarsSuppressed:m_scrollbarsSuppressed
repaintOnUnsuppress:repaintOnUnsuppress];
END_BLOCK_OBJC_EXCEPTIONS;
}
void ScrollView::platformSetScrollPosition(const IntPoint& scrollPoint)
{
BEGIN_BLOCK_OBJC_EXCEPTIONS;
NSPoint floatPoint = scrollPoint;
NSPoint tempPoint = { max(-[scrollView() scrollOrigin].x, floatPoint.x), max(-[scrollView() scrollOrigin].y, floatPoint.y) }; // Don't use NSMakePoint to work around 4213314.
[documentView() scrollPoint:tempPoint];
END_BLOCK_OBJC_EXCEPTIONS;
}
bool ScrollView::platformScroll(ScrollDirection, ScrollGranularity)
{
// FIXME: It would be nice to implement this so that all of the code in WebFrameView could go away.
notImplemented();
return false;
}
void ScrollView::platformRepaintContentRectangle(const IntRect& rect, bool now)
{
BEGIN_BLOCK_OBJC_EXCEPTIONS;
NSView *view = documentView();
[view setNeedsDisplayInRect:rect];
if (now) {
[[view window] displayIfNeeded];
[[view window] flushWindowIfNeeded];
}
END_BLOCK_OBJC_EXCEPTIONS;
}
// "Containing Window" means the NSWindow's coord system, which is origin lower left
IntRect ScrollView::platformContentsToScreen(const IntRect& rect) const
{
BEGIN_BLOCK_OBJC_EXCEPTIONS;
if (NSView* documentView = this->documentView()) {
NSRect tempRect = rect;
tempRect = [documentView convertRect:tempRect toView:nil];
tempRect.origin = [[documentView window] convertBaseToScreen:tempRect.origin];
return enclosingIntRect(tempRect);
}
END_BLOCK_OBJC_EXCEPTIONS;
return IntRect();
}
IntPoint ScrollView::platformScreenToContents(const IntPoint& point) const
{
BEGIN_BLOCK_OBJC_EXCEPTIONS;
if (NSView* documentView = this->documentView()) {
NSPoint windowCoord = [[documentView window] convertScreenToBase: point];
return IntPoint([documentView convertPoint:windowCoord fromView:nil]);
}
END_BLOCK_OBJC_EXCEPTIONS;
return IntPoint();
}
bool ScrollView::platformIsOffscreen() const
{
return ![platformWidget() window] || ![[platformWidget() window] isVisible];
}
void ScrollView::platformSetScrollOrigin(const IntPoint& origin, bool updatePosition)
{
BEGIN_BLOCK_OBJC_EXCEPTIONS;
[scrollView() setScrollOrigin:origin updatePosition:updatePosition];
END_BLOCK_OBJC_EXCEPTIONS;
}
} // namespace WebCore
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