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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/RefPtr.h>
#include <LibJS/Heap/GCPtr.h>
#include <LibWeb/CSS/Display.h>
#include <LibWeb/CSS/Selector.h>
#include <LibWeb/Forward.h>
namespace Web::Layout {
class TreeBuilder {
public:
TreeBuilder();
JS::GCPtr<Layout::Node> build(DOM::Node&);
private:
struct Context {
bool has_svg_root = false;
};
ErrorOr<void> create_layout_tree(DOM::Node&, Context&);
void push_parent(Layout::NodeWithStyle& node) { m_ancestor_stack.append(node); }
void pop_parent() { m_ancestor_stack.take_last(); }
template<CSS::Display::Internal, typename Callback>
void for_each_in_tree_with_internal_display(NodeWithStyle& root, Callback);
template<CSS::Display::Inside, typename Callback>
void for_each_in_tree_with_inside_display(NodeWithStyle& root, Callback);
void fixup_tables(NodeWithStyle& root);
void remove_irrelevant_boxes(NodeWithStyle& root);
void generate_missing_child_wrappers(NodeWithStyle& root);
void generate_missing_parents(NodeWithStyle& root);
enum class AppendOrPrepend {
Append,
Prepend,
};
void insert_node_into_inline_or_block_ancestor(Layout::Node&, CSS::Display, AppendOrPrepend);
ErrorOr<void> create_pseudo_element_if_needed(DOM::Element&, CSS::Selector::PseudoElement, AppendOrPrepend);
JS::GCPtr<Layout::Node> m_layout_root;
Vector<JS::NonnullGCPtr<Layout::NodeWithStyle>> m_ancestor_stack;
};
}
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