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https://github.com/fergalmoran/ladybird.git
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d3c481f71a
Our existing coalescing mechanism for input events didn't prevent multiple mousemove/mousewheel events from being processed between paint cycles. Since handling these events can trigger style & layout updates solely for hit-testing purposes, we might end up doing work that won't be observable by a user and could be avoided by shceduling input events processing to happen right before painting the next frame.
56 lines
2.1 KiB
C++
56 lines
2.1 KiB
C++
/*
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* Copyright (c) 2023, Andrew Kaster <akaster@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 <LibGfx/Rect.h>
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#include <LibWeb/Page/Page.h>
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#include <LibWeb/PixelUnits.h>
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#include <WebWorker/Forward.h>
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namespace WebWorker {
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class PageHost final : public Web::PageClient {
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GC_CELL(PageHost, Web::PageClient);
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GC_DECLARE_ALLOCATOR(PageHost);
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public:
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static GC::Ref<PageHost> create(JS::VM& vm, ConnectionFromClient& client);
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virtual ~PageHost();
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virtual Web::Page& page() override;
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virtual Web::Page const& page() const override;
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virtual bool is_connection_open() const override;
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virtual Gfx::Palette palette() const override;
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virtual Web::DevicePixelRect screen_rect() const override;
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virtual double device_pixels_per_css_pixel() const override;
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virtual Web::CSS::PreferredColorScheme preferred_color_scheme() const override;
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virtual Web::CSS::PreferredContrast preferred_contrast() const override;
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virtual Web::CSS::PreferredMotion preferred_motion() const override;
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virtual void paint_next_frame() override { }
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virtual void process_screenshot_requests() override { }
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virtual void paint(Web::DevicePixelRect const&, Web::Painting::BackingStore&, Web::PaintOptions = {}) override;
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virtual void request_file(Web::FileRequest) override;
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virtual bool is_ready_to_paint() const override { return true; }
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virtual Web::DisplayListPlayerType display_list_player_type() const override { VERIFY_NOT_REACHED(); }
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virtual bool is_headless() const override { VERIFY_NOT_REACHED(); }
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virtual Queue<Web::QueuedInputEvent>& input_event_queue() override { VERIFY_NOT_REACHED(); }
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virtual void report_finished_handling_input_event([[maybe_unused]] u64 page_id, [[maybe_unused]] Web::EventResult event_was_handled) override { VERIFY_NOT_REACHED(); }
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private:
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explicit PageHost(ConnectionFromClient&);
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virtual void visit_edges(JS::Cell::Visitor&) override;
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void setup_palette();
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ConnectionFromClient& m_client;
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GC::Ref<Web::Page> m_page;
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RefPtr<Gfx::PaletteImpl> m_palette_impl;
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};
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}
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