mirror of
https://github.com/RGBCube/serenity
synced 2025-05-18 15:05:09 +00:00
b79bc25a1f
Before this patch, we were expressing the current selection as a range between two points in the layout tree. This was a made-up concept I called LayoutRange (2x LayoutPosition) and as it turns out, we don't actually need it! Instead, we can just use the Selection API from the Selection API spec. This API expresses selection in terms of the DOM, and we already had many of the building blocks implemented. To ensure that selections get visually updated when the underlying Range of an active Selection is programmatically manipulated, Range now has an "associated Selection". If a range is updated while associated with a selection, we recompute layout tree selection states and repaint the page to make it user-visible.
40 lines
1.1 KiB
C++
40 lines
1.1 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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#include <LibWeb/Selection/Selection.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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JS::GCPtr<Selection::Selection> selection() 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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};
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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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