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Sometimes people make tables with a specific width. In those cases, we can't just use the auto-sizing algorithm, but instead have to respect whatever width the content specifies. This is a bit rickety right now, since we don't implement generation of anonymous table boxes. The basic mechanism here is that block layout (which table-cell uses) now has a virtual way of asking for the width of the logical containing block. This is necessary as table-row does not produce a block-level element and so was previously unable to provide a containing block width for table-cell layout. If the table has a non-auto specified width, we now interpret that as a request to use fixed table layout. This will evolve over time. :^)
55 lines
2 KiB
C++
55 lines
2 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <LibWeb/DOM/Element.h>
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#include <LibWeb/Layout/LayoutTableCell.h>
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#include <LibWeb/Layout/LayoutTableRow.h>
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namespace Web {
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LayoutTableCell::LayoutTableCell(Document& document, const Element& element, NonnullRefPtr<StyleProperties> style)
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: LayoutBlock(document, &element, move(style))
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{
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}
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LayoutTableCell::~LayoutTableCell()
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{
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}
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size_t LayoutTableCell::colspan() const
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{
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ASSERT(node());
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return to<Element>(*node()).attribute(HTML::AttributeNames::colspan).to_uint().value_or(1);
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}
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float LayoutTableCell::width_of_logical_containing_block() const
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{
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if (auto* row = first_ancestor_of_type<LayoutTableRow>())
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return row->width();
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return 0;
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}
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}
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