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serenity/Userland/Services/WebContent/ConnectionFromClient.h
Aliaksandr Kalenik 02936f6944 LibWebView+WebContent: Drive repainting from WebContent process 
With this change, chrome no longer has to ask the WebContent process
to paint the next frame into a specified bitmap. Instead, it allocates
bitmaps and sends them to WebContent, which then lets chrome know when
the painting is done.

This work is a preparation to move the execution of painting commands
into a separate thread. Now, it is much easier to start working on the
next frame while the current one is still rendering. This is because
WebContent does not have to inform chrome that the current frame is
ready before it can request the next frame.

Additionally, as a side bonus, we can now eliminate the
did_invalidate_content_rect and did_change_selection IPC calls. These
were used solely for the purpose of informing chrome that it needed to
request a repaint.
2023-12-22 17:47:34 +01:00

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/*
* Copyright (c) 2018-2023, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021-2023, Linus Groh <linusg@serenityos.org>
* Copyright (c) 2022, Tim Flynn <trflynn89@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/HashMap.h>
#include <AK/Queue.h>
#include <LibIPC/ConnectionFromClient.h>
#include <LibJS/Forward.h>
#include <LibJS/Heap/Handle.h>
#include <LibWeb/CSS/PreferredColorScheme.h>
#include <LibWeb/Forward.h>
#include <LibWeb/Loader/FileRequest.h>
#include <LibWeb/Platform/Timer.h>
#include <LibWebView/Forward.h>
#include <WebContent/Forward.h>
#include <WebContent/WebContentClientEndpoint.h>
#include <WebContent/WebContentConsoleClient.h>
#include <WebContent/WebContentServerEndpoint.h>
namespace WebContent {
class ConnectionFromClient final
: public IPC::ConnectionFromClient<WebContentClientEndpoint, WebContentServerEndpoint> {
C_OBJECT(ConnectionFromClient);
public:
~ConnectionFromClient() override = default;
virtual void die() override;
void initialize_js_console(Badge<PageClient>, Web::DOM::Document& document);
void destroy_js_console(Badge<PageClient>, Web::DOM::Document& document);
void request_file(Web::FileRequest);
Optional<int> fd() { return socket().fd(); }
PageHost& page_host() { return *m_page_host; }
PageHost const& page_host() const { return *m_page_host; }
auto& backing_stores() { return m_backing_stores; }
private:
explicit ConnectionFromClient(NonnullOwnPtr<Core::LocalSocket>);
PageClient& page(u64 index = 0);
PageClient const& page(u64 index = 0) const;
virtual Messages::WebContentServer::GetWindowHandleResponse get_window_handle() override;
virtual void set_window_handle(String const& handle) override;
virtual void connect_to_webdriver(ByteString const& webdriver_ipc_path) override;
virtual void update_system_theme(Core::AnonymousBuffer const&) override;
virtual void update_system_fonts(ByteString const&, ByteString const&, ByteString const&) override;
virtual void update_screen_rects(Vector<Web::DevicePixelRect> const&, u32) override;
virtual void load_url(URL const&) override;
virtual void load_html(ByteString const&) override;
virtual void set_viewport_rect(Web::DevicePixelRect const&) override;
virtual void mouse_down(Web::DevicePixelPoint, Web::DevicePixelPoint, unsigned, unsigned, unsigned) override;
virtual void mouse_move(Web::DevicePixelPoint, Web::DevicePixelPoint, unsigned, unsigned, unsigned) override;
virtual void mouse_up(Web::DevicePixelPoint, Web::DevicePixelPoint, unsigned, unsigned, unsigned) override;
virtual void mouse_wheel(Web::DevicePixelPoint, Web::DevicePixelPoint, unsigned, unsigned, unsigned, Web::DevicePixels, Web::DevicePixels) override;
virtual void doubleclick(Web::DevicePixelPoint, Web::DevicePixelPoint, unsigned, unsigned, unsigned) override;
virtual void key_down(i32, unsigned, u32) override;
virtual void key_up(i32, unsigned, u32) override;
virtual void add_backing_store(i32 front_bitmap_id, Gfx::ShareableBitmap const& front_bitmap, i32 back_bitmap_id, Gfx::ShareableBitmap const& back_bitmap) override;
virtual void debug_request(ByteString const&, ByteString const&) override;
virtual void get_source() override;
virtual void inspect_dom_tree() override;
virtual Messages::WebContentServer::InspectDomNodeResponse inspect_dom_node(i32 node_id, Optional<Web::CSS::Selector::PseudoElement::Type> const& pseudo_element) override;
virtual void inspect_accessibility_tree() override;
virtual Messages::WebContentServer::GetHoveredNodeIdResponse get_hovered_node_id() override;
virtual void set_dom_node_text(i32 node_id, String const& text) override;
virtual Messages::WebContentServer::SetDomNodeTagResponse set_dom_node_tag(i32 node_id, String const& name) override;
virtual void add_dom_node_attributes(i32 node_id, Vector<WebView::Attribute> const& attributes) override;
virtual void replace_dom_node_attribute(i32 node_id, String const& name, Vector<WebView::Attribute> const& replacement_attributes) override;
virtual Messages::WebContentServer::CreateChildElementResponse create_child_element(i32 node_id) override;
virtual Messages::WebContentServer::CreateChildTextNodeResponse create_child_text_node(i32 node_id) override;
virtual Messages::WebContentServer::CloneDomNodeResponse clone_dom_node(i32 node_id) override;
virtual void remove_dom_node(i32 node_id) override;
virtual Messages::WebContentServer::GetDomNodeHtmlResponse get_dom_node_html(i32 node_id) override;
virtual Messages::WebContentServer::DumpLayoutTreeResponse dump_layout_tree() override;
virtual Messages::WebContentServer::DumpPaintTreeResponse dump_paint_tree() override;
virtual Messages::WebContentServer::DumpTextResponse dump_text() override;
virtual void set_content_filters(Vector<String> const&) override;
virtual void set_autoplay_allowed_on_all_websites() override;
virtual void set_autoplay_allowlist(Vector<String> const& allowlist) override;
virtual void set_proxy_mappings(Vector<ByteString> const&, HashMap<ByteString, size_t> const&) override;
virtual void set_preferred_color_scheme(Web::CSS::PreferredColorScheme const&) override;
virtual void set_has_focus(bool) override;
virtual void set_is_scripting_enabled(bool) override;
virtual void set_device_pixels_per_css_pixel(float) override;
virtual void set_window_position(Web::DevicePixelPoint) override;
virtual void set_window_size(Web::DevicePixelSize) override;
virtual void handle_file_return(i32 error, Optional<IPC::File> const& file, i32 request_id) override;
virtual void set_system_visibility_state(bool visible) override;
virtual void js_console_input(ByteString const&) override;
virtual void run_javascript(ByteString const&) override;
virtual void js_console_request_messages(i32) override;
virtual void alert_closed() override;
virtual void confirm_closed(bool accepted) override;
virtual void prompt_closed(Optional<String> const& response) override;
virtual void color_picker_closed(Optional<Color> const& picked_color) override;
virtual void select_dropdown_closed(Optional<String> const& value) override;
virtual void toggle_media_play_state() override;
virtual void toggle_media_mute_state() override;
virtual void toggle_media_loop_state() override;
virtual void toggle_media_controls_state() override;
virtual void set_user_style(String const&) override;
virtual void enable_inspector_prototype() override;
virtual Messages::WebContentServer::TakeDocumentScreenshotResponse take_document_screenshot() override;
virtual Messages::WebContentServer::TakeDomNodeScreenshotResponse take_dom_node_screenshot(i32 node_id) override;
virtual Messages::WebContentServer::DumpGcGraphResponse dump_gc_graph() override;
virtual Messages::WebContentServer::GetLocalStorageEntriesResponse get_local_storage_entries() override;
virtual Messages::WebContentServer::GetSessionStorageEntriesResponse get_session_storage_entries() override;
virtual Messages::WebContentServer::GetSelectedTextResponse get_selected_text() override;
virtual void select_all() override;
void report_finished_handling_input_event(bool event_was_handled);
NonnullOwnPtr<PageHost> m_page_host;
struct BackingStores {
i32 front_bitmap_id { -1 };
i32 back_bitmap_id { -1 };
RefPtr<Gfx::Bitmap> front_bitmap;
RefPtr<Gfx::Bitmap> back_bitmap;
};
BackingStores m_backing_stores;
HashMap<Web::DOM::Document*, NonnullOwnPtr<WebContentConsoleClient>> m_console_clients;
WeakPtr<WebContentConsoleClient> m_top_level_document_console_client;
JS::Handle<JS::GlobalObject> m_console_global_object;
HashMap<int, Web::FileRequest> m_requested_files {};
int last_id { 0 };
struct QueuedMouseEvent {
enum class Type {
MouseMove,
MouseDown,
MouseUp,
MouseWheel,
DoubleClick,
};
Type type {};
Web::DevicePixelPoint position {};
Web::DevicePixelPoint screen_position {};
unsigned button {};
unsigned buttons {};
unsigned modifiers {};
Web::DevicePixels wheel_delta_x {};
Web::DevicePixels wheel_delta_y {};
size_t coalesced_event_count { 0 };
};
struct QueuedKeyboardEvent {
enum class Type {
KeyDown,
KeyUp,
};
Type type {};
i32 key {};
unsigned int modifiers {};
u32 code_point {};
};
void enqueue_input_event(Variant<QueuedMouseEvent, QueuedKeyboardEvent>);
void process_next_input_event();
Queue<Variant<QueuedMouseEvent, QueuedKeyboardEvent>> m_input_event_queue;
RefPtr<Web::Platform::Timer> m_input_event_queue_timer;
};
}
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