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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 2000 Simon Hausmann <hausmann@kde.org>
* (C) 2000 Stefan Schimanski (1Stein@gmx.de)
* Copyright (C) 2004, 2005, 2006, 2009 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include "RenderFrame.h"
#include "FrameView.h"
#include "HTMLFrameElement.h"
#include "RenderView.h"
#ifdef FLATTEN_FRAMESET
#include "Frame.h"
#include "Document.h"
#include "RenderView.h"
#endif
namespace WebCore {
RenderFrame::RenderFrame(HTMLFrameElement* frame)
: RenderPart(frame)
{
setInline(false);
}
FrameEdgeInfo RenderFrame::edgeInfo() const
{
HTMLFrameElement* element = static_cast<HTMLFrameElement*>(node());
return FrameEdgeInfo(element->noResize(), element->hasFrameBorder());
}
void RenderFrame::viewCleared()
{
HTMLFrameElement* element = static_cast<HTMLFrameElement*>(node());
if (!element || !widget() || !widget()->isFrameView())
return;
FrameView* view = static_cast<FrameView*>(widget());
int marginw = element->getMarginWidth();
int marginh = element->getMarginHeight();
if (marginw != -1)
view->setMarginWidth(marginw);
if (marginh != -1)
view->setMarginHeight(marginh);
}
#ifdef FLATTEN_FRAMESET
void RenderFrame::layout()
{
if (widget() && widget()->isFrameView()) {
FrameView* view = static_cast<FrameView*>(widget());
RenderView* root = NULL;
if (view->frame() && view->frame()->document() &&
view->frame()->document()->renderer() &&
view->frame()->document()->renderer()->isRenderView())
root = static_cast<RenderView*>(view->frame()->document()->renderer());
if (root) {
// Resize the widget so that the RenderView will layout according to those dimensions.
view->resize(width(), height());
view->layout();
// We can only grow in width and height because if positionFrames gives us a width and we become smaller,
// then the fixup process of forcing the frame to fill extra space will fail.
if (width() > root->docWidth()) {
view->resize(root->docWidth(), 0);
view->layout();
}
// Honor the height set by RenderFrameSet::positionFrames unless our document height is larger.
setHeight(max(root->docHeight(), height()));
setWidth(max(root->docWidth(), width()));
}
}
setNeedsLayout(false);
}
#endif
void RenderFrame::layoutWithFlattening(bool fixedWidth, bool fixedHeight)
{
// NOTE: The width and height have been set at this point by
// RenderFrameSet::positionFramesWithFlattening()
FrameView* childFrameView = static_cast<FrameView*>(widget());
RenderView* childRoot = childFrameView ? static_cast<RenderView*>(childFrameView->frame()->contentRenderer()) : 0;
HTMLFrameElement* element = static_cast<HTMLFrameElement*>(node());
// Do not expand framesets which has zero width or height
if (!width() || !height() || !childRoot) {
updateWidgetPosition();
if (childFrameView)
childFrameView->layout();
setNeedsLayout(false);
return;
}
// need to update to calculate min/max correctly
updateWidgetPosition();
if (childRoot->prefWidthsDirty())
childRoot->calcPrefWidths();
// if scrollbars are off, and the width or height are fixed
// we obey them and do not expand. With frame flattening
// no subframe much ever become scrollable.
bool isScrollable = element->scrollingMode() != ScrollbarAlwaysOff;
// make sure minimum preferred width is enforced
if (isScrollable || !fixedWidth || childRoot->isFrameSet())
setWidth(max(width(), childRoot->minPrefWidth()));
// update again to pass the width to the child frame
updateWidgetPosition();
childFrameView->layout();
// expand the frame by setting frame height = content height
if (isScrollable || !fixedHeight || childRoot->isFrameSet())
setHeight(max(height(), childFrameView->contentsHeight()));
if (isScrollable || !fixedWidth || childRoot->isFrameSet())
setWidth(max(width(), childFrameView->contentsWidth()));
updateWidgetPosition();
ASSERT(!childFrameView->layoutPending());
ASSERT(!childRoot->needsLayout());
ASSERT(!childRoot->firstChild() || !childRoot->firstChild()->firstChild() || !childRoot->firstChild()->firstChild()->needsLayout());
setNeedsLayout(false);
}
} // namespace WebCore
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