a11c281dc3
Apply pinch zoom deltas to the compositor's visual viewport transform so the currently presented display list can respond without waiting for the WebContent main thread. Keep the normal WebContent pinch event path so the real VisualViewport state and DOM-visible events catch up after. Only take the compositor path when async scrolling is enabled and there are no blocking wheel listeners, since pinch zoom dispatches a synthetic wheel event that script may cancel. Coalesce queued pinch events in WebContent so main-thread catch-up can adopt multiple gesture deltas together. Use the compositor visual viewport transform for wheel hit testing and consume wheel deltas as visual viewport pan while zoomed. Scale the handoff to layout viewport scrolling by the inverse visual viewport scale, so touchpad momentum does not jump when the visual viewport hits an edge.
56 lines
2.9 KiB
C++
56 lines
2.9 KiB
C++
/*
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* Copyright (c) 2026, the Ladybird developers.
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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 <AK/HashMap.h>
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#include <AK/NonnullRefPtr.h>
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#include <Compositor/CompositorControlClientEndpoint.h>
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#include <Compositor/CompositorControlServerEndpoint.h>
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#include <Compositor/CompositorState.h>
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#include <Compositor/Forward.h>
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#include <LibIPC/ConnectionFromClient.h>
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#include <LibIPC/TransportHandle.h>
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#include <LibWeb/Painting/DisplayList.h>
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#include <LibWeb/Painting/DisplayListResourceStorage.h>
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namespace Compositor {
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class ConnectionFromClient final
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: public IPC::ConnectionFromClient<CompositorControlClientEndpoint, CompositorControlServerEndpoint>
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, public CompositorStateClient {
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C_OBJECT(ConnectionFromClient);
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public:
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virtual ~ConnectionFromClient() override = default;
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private:
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ConnectionFromClient(NonnullOwnPtr<IPC::Transport>, RefPtr<Gfx::SkiaBackendContext>, bool async_scrolling_enabled);
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virtual void die() override;
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virtual void did_allocate_backing_stores(Web::Compositor::CompositorContextId, i32 front_bitmap_id, Gfx::SharedImage&& front_backing_store, i32 back_bitmap_id, Gfx::SharedImage&& back_backing_store) override;
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virtual void did_present_frame(Web::Compositor::CompositorContextId, Gfx::IntRect content_rect, i32 bitmap_id) override;
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virtual Messages::CompositorControlServer::InitTransportResponse init_transport(int peer_pid) override;
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virtual Messages::CompositorControlServer::ConnectWebContentResponse connect_web_content() override;
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virtual void create_context(Web::Compositor::CompositorContextId, Optional<u64> page_id, i32 web_content_connection_id) override;
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virtual void viewport_size_updated(Web::Compositor::CompositorContextId, Gfx::IntSize, Web::Compositor::WindowResizingInProgress) override;
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virtual void set_display_metadata(Web::Compositor::CompositorContextId, Optional<u64>, double) override;
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virtual Messages::CompositorControlServer::HandleMouseEventResponse handle_mouse_event(Web::Compositor::CompositorContextId, Web::MouseEvent) override;
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virtual Messages::CompositorControlServer::DispatchMouseEventToWebContentResponse dispatch_mouse_event_to_web_content(Web::Compositor::CompositorContextId, Web::MouseEvent) override;
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virtual Messages::CompositorControlServer::HandlePinchEventResponse handle_pinch_event(Web::Compositor::CompositorContextId, Web::PinchEvent) override;
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virtual Messages::CompositorControlServer::AsyncScrollByResponse async_scroll_by(Web::Compositor::CompositorContextId, Gfx::FloatPoint position, Gfx::FloatPoint delta_in_device_pixels) override;
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virtual void presented_bitmap_ready_to_paint(Web::Compositor::CompositorContextId, i32 bitmap_id) override;
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virtual void crash() override;
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ConnectionFromWebContent* web_content_connection(i32 web_content_connection_id);
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HashMap<i32, NonnullRefPtr<ConnectionFromWebContent>> m_web_content_connections;
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NonnullRefPtr<CompositorState> m_compositor_state;
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};
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}
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