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.
43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
/*
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* Copyright (c) 2018-2021, 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 <LibWeb/DOM/Document.h>
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#include <LibWeb/Layout/BlockContainer.h>
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#include <LibWeb/Layout/LayoutPosition.h>
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namespace Web::Layout {
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class InitialContainingBlock final : public BlockContainer {
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JS_CELL(InitialContainingBlock, BlockContainer);
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public:
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explicit InitialContainingBlock(DOM::Document&, NonnullRefPtr<CSS::StyleProperties>);
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virtual ~InitialContainingBlock() override;
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const DOM::Document& dom_node() const { return static_cast<const DOM::Document&>(*Node::dom_node()); }
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void paint_all_phases(PaintContext&);
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LayoutRange const& selection() const { return m_selection; }
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void set_selection(LayoutRange const&);
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void set_selection_end(LayoutPosition const&);
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void build_stacking_context_tree_if_needed();
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void recompute_selection_states();
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private:
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void build_stacking_context_tree();
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virtual bool is_initial_containing_block_box() const override { return true; }
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LayoutRange m_selection;
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};
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template<>
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inline bool Node::fast_is<InitialContainingBlock>() const { return is_initial_containing_block_box(); }
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}
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