mirror of
https://github.com/RGBCube/serenity
synced 2025-05-18 16:25:07 +00:00
268b9c5d90
This removes a set of complex reference cycles between DOM, layout tree and browsing context. It also makes lifetimes much easier to reason about, as the DOM and layout trees are now free to keep each other alive.
54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/NonnullRefPtrVector.h>
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#include <AK/RefPtr.h>
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#include <LibWeb/CSS/Display.h>
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#include <LibWeb/Forward.h>
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namespace Web::Layout {
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class TreeBuilder {
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public:
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TreeBuilder();
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JS::GCPtr<Layout::Node> build(DOM::Node&);
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private:
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struct Context {
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bool has_svg_root = false;
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};
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void create_layout_tree(DOM::Node&, Context&);
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void push_parent(Layout::NodeWithStyle& node) { m_ancestor_stack.append(node); }
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void pop_parent() { m_ancestor_stack.take_last(); }
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template<CSS::Display::Internal, typename Callback>
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void for_each_in_tree_with_internal_display(NodeWithStyle& root, Callback);
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template<CSS::Display::Inside, typename Callback>
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void for_each_in_tree_with_inside_display(NodeWithStyle& root, Callback);
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void fixup_tables(NodeWithStyle& root);
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void remove_irrelevant_boxes(NodeWithStyle& root);
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void generate_missing_child_wrappers(NodeWithStyle& root);
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void generate_missing_parents(NodeWithStyle& root);
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enum class AppendOrPrepend {
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Append,
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Prepend,
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};
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void insert_node_into_inline_or_block_ancestor(Layout::Node&, CSS::Display, AppendOrPrepend);
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void create_pseudo_element_if_needed(DOM::Element&, CSS::Selector::PseudoElement, AppendOrPrepend);
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JS::GCPtr<Layout::Node> m_layout_root;
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Vector<Layout::NodeWithStyle&> m_ancestor_stack;
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};
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}
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