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c2c007b356
This prevents flickering by ensuring that WebContent is only ever painting into the back buffer bitmap. Without this change, it was possible for WebContent to paint into the front buffer bitmap.
131 lines
5.5 KiB
C++
131 lines
5.5 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@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 <AK/URL.h>
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#include <LibGUI/AbstractScrollableWidget.h>
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#include <LibGUI/Widget.h>
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#include <LibWeb/WebViewHooks.h>
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namespace Web {
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class WebContentClient;
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class OutOfProcessWebView final
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: public GUI::AbstractScrollableWidget
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, public Web::WebViewHooks {
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C_OBJECT(OutOfProcessWebView);
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public:
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virtual ~OutOfProcessWebView() override;
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AK::URL url() const { return m_url; }
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void load(const AK::URL&);
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void load_html(const StringView&, const AK::URL&);
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void load_empty_document();
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void debug_request(const String& request, const String& argument = {});
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void get_source();
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void inspect_dom_tree();
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struct DOMNodeProperties {
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String specified_values_json;
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String computed_values_json;
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};
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Optional<DOMNodeProperties> inspect_dom_node(i32 node_id);
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void clear_inspected_dom_node();
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i32 get_hovered_node_id();
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void js_console_input(const String& js_source);
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void js_console_request_messages(i32 start_index);
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void run_javascript(StringView);
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String selected_text();
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void select_all();
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String dump_layout_tree();
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void notify_server_did_layout(Badge<WebContentClient>, const Gfx::IntSize& content_size);
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void notify_server_did_paint(Badge<WebContentClient>, i32 bitmap_id);
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void notify_server_did_invalidate_content_rect(Badge<WebContentClient>, const Gfx::IntRect&);
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void notify_server_did_change_selection(Badge<WebContentClient>);
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void notify_server_did_request_cursor_change(Badge<WebContentClient>, Gfx::StandardCursor cursor);
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void notify_server_did_change_title(Badge<WebContentClient>, const String&);
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void notify_server_did_request_scroll(Badge<WebContentClient>, i32, i32);
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void notify_server_did_request_scroll_to(Badge<WebContentClient>, Gfx::IntPoint const&);
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void notify_server_did_request_scroll_into_view(Badge<WebContentClient>, const Gfx::IntRect&);
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void notify_server_did_enter_tooltip_area(Badge<WebContentClient>, const Gfx::IntPoint&, const String&);
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void notify_server_did_leave_tooltip_area(Badge<WebContentClient>);
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void notify_server_did_hover_link(Badge<WebContentClient>, const AK::URL&);
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void notify_server_did_unhover_link(Badge<WebContentClient>);
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void notify_server_did_click_link(Badge<WebContentClient>, const AK::URL&, const String& target, unsigned modifiers);
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void notify_server_did_middle_click_link(Badge<WebContentClient>, const AK::URL&, const String& target, unsigned modifiers);
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void notify_server_did_start_loading(Badge<WebContentClient>, const AK::URL&);
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void notify_server_did_finish_loading(Badge<WebContentClient>, const AK::URL&);
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void notify_server_did_request_context_menu(Badge<WebContentClient>, const Gfx::IntPoint&);
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void notify_server_did_request_link_context_menu(Badge<WebContentClient>, const Gfx::IntPoint&, const AK::URL&, const String& target, unsigned modifiers);
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void notify_server_did_request_image_context_menu(Badge<WebContentClient>, const Gfx::IntPoint&, const AK::URL&, const String& target, unsigned modifiers, const Gfx::ShareableBitmap&);
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void notify_server_did_request_alert(Badge<WebContentClient>, const String& message);
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bool notify_server_did_request_confirm(Badge<WebContentClient>, const String& message);
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String notify_server_did_request_prompt(Badge<WebContentClient>, const String& message, const String& default_);
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void notify_server_did_get_source(const AK::URL& url, const String& source);
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void notify_server_did_get_dom_tree(const String& dom_tree);
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void notify_server_did_get_dom_node_properties(i32 node_id, String const& specified_style, String const& computed_style);
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void notify_server_did_output_js_console_message(i32 message_index);
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void notify_server_did_get_js_console_messages(i32 start_index, Vector<String> const& message_types, Vector<String> const& messages);
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void notify_server_did_change_favicon(const Gfx::Bitmap& favicon);
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String notify_server_did_request_cookie(Badge<WebContentClient>, const AK::URL& url, Cookie::Source source);
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void notify_server_did_set_cookie(Badge<WebContentClient>, const AK::URL& url, const Cookie::ParsedCookie& cookie, Cookie::Source source);
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private:
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OutOfProcessWebView();
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// ^Widget
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virtual void paint_event(GUI::PaintEvent&) override;
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virtual void resize_event(GUI::ResizeEvent&) override;
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virtual void mousedown_event(GUI::MouseEvent&) override;
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virtual void mouseup_event(GUI::MouseEvent&) override;
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virtual void mousemove_event(GUI::MouseEvent&) override;
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virtual void mousewheel_event(GUI::MouseEvent&) override;
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virtual void keydown_event(GUI::KeyEvent&) override;
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virtual void theme_change_event(GUI::ThemeChangeEvent&) override;
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virtual void screen_rects_change_event(GUI::ScreenRectsChangeEvent&) override;
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// ^AbstractScrollableWidget
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virtual void did_scroll() override;
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void request_repaint();
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void handle_resize();
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void create_client();
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WebContentClient& client();
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void handle_web_content_process_crash();
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AK::URL m_url;
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struct SharedBitmap {
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i32 id { -1 };
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i32 pending_paints { 0 };
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RefPtr<Gfx::Bitmap> bitmap;
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};
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struct ClientState {
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RefPtr<WebContentClient> client;
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SharedBitmap front_bitmap;
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SharedBitmap back_bitmap;
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i32 next_bitmap_id { 0 };
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bool has_usable_bitmap { false };
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} m_client_state;
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RefPtr<Gfx::Bitmap> m_backup_bitmap;
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};
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}
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