| /* |
| * Copyright (C) 2019 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 "TableFormattingState.h" |
| |
| #if ENABLE(LAYOUT_FORMATTING_CONTEXT) |
| |
| #include "TableFormattingContext.h" |
| #include <wtf/IsoMallocInlines.h> |
| |
| namespace WebCore { |
| namespace Layout { |
| |
| WTF_MAKE_ISO_ALLOCATED_IMPL(TableFormattingState); |
| |
| static UniqueRef<TableGrid> ensureTableGrid(const ContainerBox& tableBox) |
| { |
| auto tableGrid = makeUniqueRef<TableGrid>(); |
| auto& tableStyle = tableBox.style(); |
| auto shouldApplyBorderSpacing = tableStyle.borderCollapse() == BorderCollapse::Separate; |
| tableGrid->setHorizontalSpacing(LayoutUnit { shouldApplyBorderSpacing ? tableStyle.horizontalBorderSpacing() : 0 }); |
| tableGrid->setVerticalSpacing(LayoutUnit { shouldApplyBorderSpacing ? tableStyle.verticalBorderSpacing() : 0 }); |
| |
| auto* firstChild = tableBox.firstChild(); |
| if (!firstChild) { |
| // The rare case of empty table. |
| return tableGrid; |
| } |
| |
| const Box* tableCaption = nullptr; |
| const Box* colgroup = nullptr; |
| // Table caption is an optional element; if used, it is always the first child of a <table>. |
| if (firstChild->isTableCaption()) |
| tableCaption = firstChild; |
| // The <colgroup> must appear after any optional <caption> element but before any <thead>, <th>, <tbody>, <tfoot> and <tr> element. |
| auto* colgroupCandidate = firstChild; |
| if (tableCaption) |
| colgroupCandidate = tableCaption->nextSibling(); |
| if (colgroupCandidate->isTableColumnGroup()) |
| colgroup = colgroupCandidate; |
| |
| if (colgroup) { |
| auto& columns = tableGrid->columns(); |
| for (auto* column = downcast<ContainerBox>(*colgroup).firstChild(); column; column = column->nextSibling()) { |
| ASSERT(column->isTableColumn()); |
| auto columnSpanCount = column->columnSpan(); |
| ASSERT(columnSpanCount > 0); |
| while (columnSpanCount--) |
| columns.addColumn(downcast<ContainerBox>(*column)); |
| } |
| } |
| |
| auto* firstSection = colgroup ? colgroup->nextSibling() : tableCaption ? tableCaption->nextSibling() : firstChild; |
| for (auto* section = firstSection; section; section = section->nextSibling()) { |
| ASSERT(section->isTableHeader() || section->isTableBody() || section->isTableFooter()); |
| for (auto* row = downcast<ContainerBox>(*section).firstChild(); row; row = row->nextSibling()) { |
| ASSERT(row->isTableRow()); |
| for (auto* cell = downcast<ContainerBox>(*row).firstChild(); cell; cell = cell->nextSibling()) { |
| ASSERT(cell->isTableCell()); |
| tableGrid->appendCell(downcast<ContainerBox>(*cell)); |
| } |
| } |
| } |
| return tableGrid; |
| } |
| |
| |
| TableFormattingState::TableFormattingState(Ref<FloatingState>&& floatingState, LayoutState& layoutState, const ContainerBox& tableBox) |
| : FormattingState(WTFMove(floatingState), Type::Table, layoutState) |
| , m_tableGrid(ensureTableGrid(tableBox)) |
| { |
| } |
| |
| TableFormattingState::~TableFormattingState() |
| { |
| } |
| |
| } |
| } |
| #endif |