mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-06-08 05:27:14 +09:00
c3a5e8e266
156c1083e9 introduced a text blocks cache
for better performance when searching through text on a page, but when
we partially recreate the layout tree, this cache does not get
invalidated. We now rebuild the entire text blocks cache after a layout
update.
50 lines
1.2 KiB
C++
50 lines
1.2 KiB
C++
/*
|
|
* Copyright (c) 2018-2023, Andreas Kling <andreas@ladybird.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <LibWeb/DOM/Document.h>
|
|
#include <LibWeb/Layout/BlockContainer.h>
|
|
|
|
namespace Web::Layout {
|
|
|
|
class Viewport final : public BlockContainer {
|
|
GC_CELL(Viewport, BlockContainer);
|
|
GC_DECLARE_ALLOCATOR(Viewport);
|
|
|
|
public:
|
|
explicit Viewport(DOM::Document&, GC::Ref<CSS::ComputedProperties>);
|
|
virtual ~Viewport() override;
|
|
|
|
struct TextPosition {
|
|
GC::Ref<DOM::Text> dom_node;
|
|
size_t start_offset { 0 };
|
|
};
|
|
struct TextBlock {
|
|
String text;
|
|
Vector<TextPosition> positions;
|
|
};
|
|
Vector<TextBlock> const& text_blocks();
|
|
void invalidate_text_blocks_cache() { m_text_blocks.clear(); }
|
|
|
|
const DOM::Document& dom_node() const { return static_cast<const DOM::Document&>(*Node::dom_node()); }
|
|
|
|
virtual void visit_edges(Visitor&) override;
|
|
|
|
private:
|
|
virtual GC::Ptr<Painting::Paintable> create_paintable() const override;
|
|
|
|
void update_text_blocks();
|
|
|
|
virtual bool is_viewport() const override { return true; }
|
|
|
|
Optional<Vector<TextBlock>> m_text_blocks;
|
|
};
|
|
|
|
template<>
|
|
inline bool Node::fast_is<Viewport>() const { return is_viewport(); }
|
|
|
|
}
|