1/* 2 * Copyright (C) 2012 Google 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 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27#include "RenderDialog.h" 28 29#if ENABLE(DIALOG_ELEMENT) 30#include "FrameView.h" 31#include "LayoutRepainter.h" 32#include "RenderLayer.h" 33#include "RenderView.h" 34 35namespace WebCore { 36 37void RenderDialog::layout() 38{ 39 StackStats::LayoutCheckPoint layoutCheckPoint; 40 LayoutRepainter repainter(*this, true); 41 LayoutStateMaintainer statePusher(view(), this, locationOffset(), hasTransform() || hasReflection() || style()->isFlippedBlocksWritingMode()); 42 43 RenderBlock::layout(); 44 45 RenderStyle* styleToUse = style(); 46 if (styleToUse->position() != AbsolutePosition || !styleToUse->top().isAuto() || !styleToUse->bottom().isAuto()) { 47 statePusher.pop(); 48 return; 49 } 50 51 // Adjust the dialog's position to be centered in or at the top of the viewport. 52 // FIXME: Figure out what to do in vertical writing mode. 53 FrameView* frameView = document()->view(); 54 int scrollTop = frameView->scrollOffset().height(); 55 FloatPoint absolutePoint(0, scrollTop); 56 int visibleHeight = frameView->visibleContentRect(ScrollableArea::IncludeScrollbars).height(); 57 if (height() < visibleHeight) 58 absolutePoint.move(0, (visibleHeight - height()) / 2); 59 FloatPoint localPoint = containingBlock()->absoluteToLocal(absolutePoint); 60 LayoutUnit localTop = LayoutSize(localPoint.x(), localPoint.y()).height(); 61 setY(localTop); 62 63 statePusher.pop(); 64 // FIXME: Since there is always a layer here, repainter shouldn't be necessary. But without it, the dialog is sometimes not painted (see bug 90670). 65 repainter.repaintAfterLayout(); 66} 67 68} 69 70#endif 71