/* * Copyright (C) 2020 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. */ #include "config.h" #include "TableFormattingContext.h" #if ENABLE(LAYOUT_FORMATTING_CONTEXT) #include "LayoutBox.h" #include "LayoutContainerBox.h" #include "LayoutState.h" namespace WebCore { namespace Layout { bool TableFormattingContext::Quirks::shouldIgnoreChildContentVerticalMargin(const ContainerBox& cellBox) const { // Normally BFC root content height takes the margin box of the child content as vertical margins don't collapse with BFC roots, // but table cell boxes do collapse their (non-existing) margins with child quirk margins (so much quirk), so here we check // if the content height should include margins or not. // e.g <table><tr><td><p>text content</td></tr></table> <- <p>'s quirk margin collapses with the <td> so its content // height should not include vertical margins. if (!layoutState().inQuirksMode()) return false; if (cellBox.establishesInlineFormattingContext()) return false; if (!cellBox.hasInFlowChild()) return false; return cellBox.firstInFlowChild()->style().hasMarginBeforeQuirk() || cellBox.lastInFlowChild()->style().hasMarginAfterQuirk(); } } } #endif