ladybird/Userland/Services/WebContent/PageHost.h
Andreas Kling 651f30dfbe WebContent: Coalesce paint invalidations to avoid spamming client
Some content cause a lot of paint invalidations (e.g someone drawing to
a <canvas> repeatedly) and we don't need to spam the client about this.
Instead, accumulate a dirty rect, and send it once per event loop step.
2021-09-28 22:53:59 +02:00

81 lines
3.5 KiB
C++

/*
* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibGfx/Rect.h>
#include <LibWeb/Page/Page.h>
namespace WebContent {
class ClientConnection;
class PageHost final : public Web::PageClient {
AK_MAKE_NONCOPYABLE(PageHost);
AK_MAKE_NONMOVABLE(PageHost);
public:
static NonnullOwnPtr<PageHost> create(ClientConnection& client) { return adopt_own(*new PageHost(client)); }
virtual ~PageHost();
Web::Page& page() { return *m_page; }
const Web::Page& page() const { return *m_page; }
void paint(const Gfx::IntRect& content_rect, Gfx::Bitmap&);
void set_palette_impl(const Gfx::PaletteImpl&);
void set_viewport_rect(const Gfx::IntRect&);
void set_screen_rects(const Vector<Gfx::IntRect, 4>& rects, size_t main_screen_index) { m_screen_rect = rects[main_screen_index]; };
void set_should_show_line_box_borders(bool b) { m_should_show_line_box_borders = b; }
private:
// ^PageClient
virtual Gfx::Palette palette() const override;
virtual Gfx::IntRect screen_rect() const override { return m_screen_rect; }
virtual void page_did_invalidate(const Gfx::IntRect&) override;
virtual void page_did_change_selection() override;
virtual void page_did_request_cursor_change(Gfx::StandardCursor) override;
virtual void page_did_layout() override;
virtual void page_did_change_title(const String&) override;
virtual void page_did_request_scroll(i32, i32) override;
virtual void page_did_request_scroll_to(Gfx::IntPoint const&) override;
virtual void page_did_request_scroll_into_view(const Gfx::IntRect&) override;
virtual void page_did_enter_tooltip_area(const Gfx::IntPoint&, const String&) override;
virtual void page_did_leave_tooltip_area() override;
virtual void page_did_hover_link(const URL&) override;
virtual void page_did_unhover_link() override;
virtual void page_did_click_link(const URL&, const String& target, unsigned modifiers) override;
virtual void page_did_middle_click_link(const URL&, const String& target, unsigned modifiers) override;
virtual void page_did_request_context_menu(const Gfx::IntPoint&) override;
virtual void page_did_request_link_context_menu(const Gfx::IntPoint&, const URL&, const String& target, unsigned modifiers) override;
virtual void page_did_start_loading(const URL&) override;
virtual void page_did_finish_loading(const URL&) override;
virtual void page_did_request_alert(const String&) override;
virtual bool page_did_request_confirm(const String&) override;
virtual String page_did_request_prompt(const String&, const String&) override;
virtual void page_did_change_favicon(const Gfx::Bitmap&) override;
virtual void page_did_request_image_context_menu(const Gfx::IntPoint&, const URL&, const String& target, unsigned modifiers, const Gfx::Bitmap*) override;
virtual String page_did_request_cookie(const URL&, Web::Cookie::Source) override;
virtual void page_did_set_cookie(const URL&, const Web::Cookie::ParsedCookie&, Web::Cookie::Source) override;
explicit PageHost(ClientConnection&);
Web::Layout::InitialContainingBlock* layout_root();
void setup_palette();
ClientConnection& m_client;
NonnullOwnPtr<Web::Page> m_page;
RefPtr<Gfx::PaletteImpl> m_palette_impl;
Gfx::IntRect m_screen_rect;
bool m_should_show_line_box_borders { false };
RefPtr<Core::Timer> m_invalidation_coalescing_timer;
Gfx::IntRect m_invalidation_rect;
};
}