mirror of
https://github.com/LadybirdBrowser/ladybird
synced 2026-04-26 09:45:06 +02:00
516fb5f2fe
This change prepares for a future where the rendering thread handles input events directly, allowing it to trigger repainting without waiting for the main thread. To support this, the compositor needs to own the display list, scroll state, and backing stores rather than receiving them per-frame from the main thread.
48 lines
1.1 KiB
C++
48 lines
1.1 KiB
C++
/*
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* Copyright (c) 2024-2026, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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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/Export.h>
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namespace Web::Painting {
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class WEB_API BackingStoreManager : public JS::Cell {
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GC_CELL(BackingStoreManager, JS::Cell);
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GC_DECLARE_ALLOCATOR(BackingStoreManager);
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public:
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#ifdef AK_OS_MACOS
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static void set_browser_mach_port(Core::MachPort&&);
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#endif
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enum class WindowResizingInProgress {
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No,
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Yes
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};
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void resize_backing_stores_if_needed(WindowResizingInProgress window_resize_in_progress);
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void reallocate_backing_stores(Gfx::IntSize);
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void restart_resize_timer();
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virtual void visit_edges(Cell::Visitor& visitor) override;
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BackingStoreManager(HTML::Navigable&);
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private:
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GC::Ref<HTML::Navigable> m_navigable;
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i32 m_front_bitmap_id { -1 };
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i32 m_back_bitmap_id { -1 };
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int m_next_bitmap_id { 0 };
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// Used to track if backing stores need reallocation
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Gfx::IntSize m_allocated_size;
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RefPtr<Core::Timer> m_backing_store_shrink_timer;
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};
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}
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