mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 13:32:45 +00:00
89 lines
3.3 KiB
C++
89 lines
3.3 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/Document.h>
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#include <LibWeb/DOM/ParentNode.h>
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#include <LibWeb/Layout/LayoutNode.h>
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#include <LibWeb/Layout/LayoutTable.h>
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#include <LibWeb/Layout/LayoutText.h>
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#include <LibWeb/Layout/LayoutTreeBuilder.h>
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namespace Web {
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LayoutTreeBuilder::LayoutTreeBuilder()
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{
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}
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static RefPtr<LayoutNode> create_layout_tree(DOM::Node& node, const CSS::StyleProperties* parent_style)
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{
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auto layout_node = node.create_layout_node(parent_style);
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if (!layout_node)
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return nullptr;
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if (!node.has_children())
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return layout_node;
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NonnullRefPtrVector<LayoutNode> layout_children;
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bool have_inline_children = false;
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bool have_noninline_children = false;
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downcast<DOM::ParentNode>(node).for_each_child([&](DOM::Node& child) {
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auto layout_child = create_layout_tree(child, &layout_node->specified_style());
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if (!layout_child)
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return;
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if (layout_child->is_inline())
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have_inline_children = true;
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else
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have_noninline_children = true;
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layout_children.append(layout_child.release_nonnull());
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});
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for (auto& layout_child : layout_children) {
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if (have_noninline_children && have_inline_children && layout_child.is_inline()) {
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if (is<LayoutText>(layout_child) && downcast<LayoutText>(layout_child).text_for_style(*parent_style) == " ")
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continue;
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layout_node->inline_wrapper().append_child(layout_child);
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} else {
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layout_node->append_child(layout_child);
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}
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}
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if (have_inline_children && !have_noninline_children)
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layout_node->set_children_are_inline(true);
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return layout_node;
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}
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RefPtr<LayoutNode> LayoutTreeBuilder::build(DOM::Node& node)
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{
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if (!is<DOM::Document>(node) && node.has_children()) {
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dbg() << "FIXME: Support building partial layout trees.";
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return nullptr;
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}
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return create_layout_tree(node, nullptr);
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}
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}
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