| /* |
| * 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 "TableFormattingQuirks.h" |
| |
| #if ENABLE(LAYOUT_FORMATTING_CONTEXT) |
| |
| #include "LayoutBox.h" |
| #include "LayoutContainerBox.h" |
| #include "LayoutContainingBlockChainIterator.h" |
| #include "LayoutState.h" |
| #include "TableFormattingContext.h" |
| #include "TableGrid.h" |
| |
| namespace WebCore { |
| namespace Layout { |
| |
| TableFormattingQuirks::TableFormattingQuirks(const TableFormattingContext& tableFormattingContext) |
| : FormattingQuirks(tableFormattingContext) |
| { |
| } |
| |
| bool TableFormattingQuirks::shouldIgnoreChildContentVerticalMargin(const ContainerBox& cellBox) |
| { |
| // 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 (cellBox.establishesInlineFormattingContext()) |
| return false; |
| if (!cellBox.hasInFlowChild()) |
| return false; |
| return cellBox.firstInFlowChild()->style().hasMarginBeforeQuirk() || cellBox.lastInFlowChild()->style().hasMarginAfterQuirk(); |
| } |
| |
| LayoutUnit TableFormattingQuirks::heightValueOfNearestContainingBlockWithFixedHeight(const Box& layoutBox) const |
| { |
| // The "let's find the nearest ancestor with fixed height to resolve percent height" quirk is limited to the table formatting |
| // context. If we can't resolve it within the table subtree, we default it to 0. |
| // e.g <div style="height: 100px"><table><tr><td style="height: 100%"></td></tr></table></div> is resolved to 0px. |
| for (auto& ancestor : containingBlockChainWithinFormattingContext(layoutBox)) { |
| auto height = ancestor.style().logicalHeight(); |
| if (height.isFixed()) |
| return LayoutUnit { height.value() }; |
| } |
| return { }; |
| } |
| |
| } |
| } |
| |
| #endif |