ladybird/Libraries/LibWebView/ViewImplementation.h
Timothy Flynn d2151e444e LibWebView: Make loading an error page after a crash optional
We won't need this in headless-browser (who isn't calling this helper
yet).
2024-11-12 14:25:59 +00:00

302 lines
13 KiB
C++

/*
* Copyright (c) 2022, Andreas Kling <andreas@ladybird.org>
* Copyright (c) 2023, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Forward.h>
#include <AK/Function.h>
#include <AK/LexicalPath.h>
#include <AK/Queue.h>
#include <AK/String.h>
#include <LibCore/Forward.h>
#include <LibCore/Promise.h>
#include <LibGfx/Forward.h>
#include <LibGfx/StandardCursor.h>
#include <LibWeb/Forward.h>
#include <LibWeb/HTML/ActivateTab.h>
#include <LibWeb/HTML/AudioPlayState.h>
#include <LibWeb/HTML/ColorPickerUpdateState.h>
#include <LibWeb/HTML/FileFilter.h>
#include <LibWeb/HTML/SelectItem.h>
#include <LibWeb/Page/EventResult.h>
#include <LibWeb/Page/InputEvent.h>
#include <LibWebView/Forward.h>
#include <LibWebView/PageInfo.h>
#include <LibWebView/WebContentClient.h>
namespace WebView {
class ViewImplementation {
public:
virtual ~ViewImplementation();
struct DOMNodeProperties {
String computed_style_json;
String resolved_style_json;
String custom_properties_json;
String node_box_sizing_json;
String aria_properties_state_json;
String fonts_json;
};
void set_url(Badge<WebContentClient>, URL::URL url) { m_url = move(url); }
URL::URL const& url() const { return m_url; }
String const& handle() const { return m_client_state.client_handle; }
void server_did_paint(Badge<WebContentClient>, i32 bitmap_id, Gfx::IntSize size);
void set_window_position(Gfx::IntPoint);
void set_window_size(Gfx::IntSize);
void did_update_window_rect();
void load(URL::URL const&);
void load_html(StringView);
void load_empty_document();
void reload();
void traverse_the_history_by_delta(int delta);
void zoom_in();
void zoom_out();
void reset_zoom();
float zoom_level() const { return m_zoom_level; }
float device_pixel_ratio() const { return m_device_pixel_ratio; }
void enqueue_input_event(Web::InputEvent);
void did_finish_handling_input_event(Badge<WebContentClient>, Web::EventResult event_result);
void set_preferred_color_scheme(Web::CSS::PreferredColorScheme);
void set_preferred_contrast(Web::CSS::PreferredContrast);
void set_preferred_motion(Web::CSS::PreferredMotion);
void set_preferred_languages(Vector<String>);
void set_enable_do_not_track(bool);
void set_enable_autoplay(bool);
ByteString selected_text();
Optional<String> selected_text_with_whitespace_collapsed();
void select_all();
void find_in_page(String const& query, CaseSensitivity = CaseSensitivity::CaseInsensitive);
void find_in_page_next_match();
void find_in_page_previous_match();
void paste(String const&);
void get_source();
void inspect_dom_tree();
void inspect_dom_node(Web::UniqueNodeID node_id, Optional<Web::CSS::Selector::PseudoElement::Type> pseudo_element);
void inspect_accessibility_tree();
void clear_inspected_dom_node();
void get_hovered_node_id();
void set_dom_node_text(Web::UniqueNodeID node_id, String text);
void set_dom_node_tag(Web::UniqueNodeID node_id, String name);
void add_dom_node_attributes(Web::UniqueNodeID node_id, Vector<Attribute> attributes);
void replace_dom_node_attribute(Web::UniqueNodeID node_id, String name, Vector<Attribute> replacement_attributes);
void create_child_element(Web::UniqueNodeID node_id);
void create_child_text_node(Web::UniqueNodeID node_id);
void clone_dom_node(Web::UniqueNodeID node_id);
void remove_dom_node(Web::UniqueNodeID node_id);
void get_dom_node_html(Web::UniqueNodeID node_id);
void list_style_sheets();
void request_style_sheet_source(Web::CSS::StyleSheetIdentifier const&);
void debug_request(ByteString const& request, ByteString const& argument = {});
void run_javascript(StringView);
void js_console_input(ByteString const& js_source);
void js_console_request_messages(i32 start_index);
void alert_closed();
void confirm_closed(bool accepted);
void prompt_closed(Optional<String> response);
void color_picker_update(Optional<Color> picked_color, Web::HTML::ColorPickerUpdateState state);
void file_picker_closed(Vector<Web::HTML::SelectedFile> selected_files);
void select_dropdown_closed(Optional<u32> const& selected_item_id);
void toggle_media_play_state();
void toggle_media_mute_state();
void toggle_media_loop_state();
void toggle_media_controls_state();
Web::HTML::MuteState page_mute_state() const { return m_mute_state; }
void toggle_page_mute_state();
void did_change_audio_play_state(Badge<WebContentClient>, Web::HTML::AudioPlayState);
Web::HTML::AudioPlayState audio_play_state() const { return m_audio_play_state; }
void did_update_navigation_buttons_state(Badge<WebContentClient>, bool back_enabled, bool forward_enabled) const;
void did_allocate_backing_stores(Badge<WebContentClient>, i32 front_bitmap_id, Gfx::ShareableBitmap const&, i32 back_bitmap_id, Gfx::ShareableBitmap const&);
#ifdef AK_OS_MACOS
void did_allocate_iosurface_backing_stores(i32 front_bitmap_id, Core::MachPort&&, i32 back_bitmap_id, Core::MachPort&&);
#endif
enum class ScreenshotType {
Visible,
Full,
};
NonnullRefPtr<Core::Promise<LexicalPath>> take_screenshot(ScreenshotType);
NonnullRefPtr<Core::Promise<LexicalPath>> take_dom_node_screenshot(Web::UniqueNodeID);
virtual void did_receive_screenshot(Badge<WebContentClient>, Gfx::ShareableBitmap const&);
NonnullRefPtr<Core::Promise<String>> request_internal_page_info(PageInfoType);
void did_receive_internal_page_info(Badge<WebContentClient>, PageInfoType, String const&);
ErrorOr<LexicalPath> dump_gc_graph();
void set_user_style_sheet(String source);
// Load Native.css as the User style sheet, which attempts to make WebView content look as close to
// native GUI widgets as possible.
void use_native_user_style_sheet();
void enable_inspector_prototype();
Function<void()> on_ready_to_paint;
Function<String(Web::HTML::ActivateTab, Web::HTML::WebViewHints, Optional<u64>)> on_new_web_view;
Function<void()> on_activate_tab;
Function<void()> on_close;
Function<void(Gfx::IntPoint screen_position)> on_context_menu_request;
Function<void(URL::URL const&, Gfx::IntPoint screen_position)> on_link_context_menu_request;
Function<void(URL::URL const&, Gfx::IntPoint screen_position, Gfx::ShareableBitmap const&)> on_image_context_menu_request;
Function<void(Gfx::IntPoint screen_position, Web::Page::MediaContextMenu const&)> on_media_context_menu_request;
Function<void(URL::URL const&)> on_link_hover;
Function<void()> on_link_unhover;
Function<void(URL::URL const&, ByteString const& target, unsigned modifiers)> on_link_click;
Function<void(URL::URL const&, ByteString const& target, unsigned modifiers)> on_link_middle_click;
Function<void(ByteString const&)> on_title_change;
Function<void(URL::URL const&)> on_url_change;
Function<void(URL::URL const&, bool)> on_load_start;
Function<void(URL::URL const&)> on_load_finish;
Function<void(ByteString const& path, i32)> on_request_file;
Function<void(Gfx::Bitmap const&)> on_favicon_change;
Function<void(Gfx::StandardCursor)> on_cursor_change;
Function<void(Gfx::IntPoint, ByteString const&)> on_request_tooltip_override;
Function<void()> on_stop_tooltip_override;
Function<void(ByteString const&)> on_enter_tooltip_area;
Function<void()> on_leave_tooltip_area;
Function<void(String const& message)> on_request_alert;
Function<void(String const& message)> on_request_confirm;
Function<void(String const& message, String const& default_)> on_request_prompt;
Function<void(String const& message)> on_request_set_prompt_text;
Function<void()> on_request_accept_dialog;
Function<void()> on_request_dismiss_dialog;
Function<void(URL::URL const&, URL::URL const&, String const&)> on_received_source;
Function<void(ByteString const&)> on_received_dom_tree;
Function<void(Optional<DOMNodeProperties>)> on_received_dom_node_properties;
Function<void(ByteString const&)> on_received_accessibility_tree;
Function<void(Vector<Web::CSS::StyleSheetIdentifier>)> on_received_style_sheet_list;
Function<void(Web::CSS::StyleSheetIdentifier const&)> on_inspector_requested_style_sheet_source;
Function<void(Web::CSS::StyleSheetIdentifier const&, URL::URL const&, String const&)> on_received_style_sheet_source;
Function<void(Web::UniqueNodeID)> on_received_hovered_node_id;
Function<void(Optional<Web::UniqueNodeID> const& node_id)> on_finshed_editing_dom_node;
Function<void(String const&)> on_received_dom_node_html;
Function<void(i32 message_id)> on_received_console_message;
Function<void(i32 start_index, Vector<ByteString> const& message_types, Vector<ByteString> const& messages)> on_received_console_messages;
Function<void(i32 count_waiting)> on_resource_status_change;
Function<void()> on_restore_window;
Function<void(Gfx::IntPoint)> on_reposition_window;
Function<void(Gfx::IntSize)> on_resize_window;
Function<void()> on_maximize_window;
Function<void()> on_minimize_window;
Function<void()> on_fullscreen_window;
Function<void(Color current_color)> on_request_color_picker;
Function<void(Web::HTML::FileFilter const& accepted_file_types, Web::HTML::AllowMultipleFiles)> on_request_file_picker;
Function<void(Gfx::IntPoint content_position, i32 minimum_width, Vector<Web::HTML::SelectItem> items)> on_request_select_dropdown;
Function<void(Web::KeyEvent const&)> on_finish_handling_key_event;
Function<void(Web::DragEvent const&)> on_finish_handling_drag_event;
Function<void(String const&)> on_text_test_finish;
Function<void(size_t current_match_index, Optional<size_t> const& total_match_count)> on_find_in_page;
Function<void(Gfx::Color)> on_theme_color_change;
Function<void(String const&, String const&, String const&)> on_insert_clipboard_entry;
Function<void(Web::HTML::AudioPlayState)> on_audio_play_state_changed;
Function<void(bool, bool)> on_navigation_buttons_state_changed;
Function<void()> on_inspector_loaded;
Function<void(Web::UniqueNodeID, Optional<Web::CSS::Selector::PseudoElement::Type> const&)> on_inspector_selected_dom_node;
Function<void(Web::UniqueNodeID, String const&)> on_inspector_set_dom_node_text;
Function<void(Web::UniqueNodeID, String const&)> on_inspector_set_dom_node_tag;
Function<void(Web::UniqueNodeID, Vector<Attribute> const&)> on_inspector_added_dom_node_attributes;
Function<void(Web::UniqueNodeID, size_t, Vector<Attribute> const&)> on_inspector_replaced_dom_node_attribute;
Function<void(Web::UniqueNodeID, Gfx::IntPoint, String const&, Optional<String> const&, Optional<size_t> const&)> on_inspector_requested_dom_tree_context_menu;
Function<void(size_t, Gfx::IntPoint)> on_inspector_requested_cookie_context_menu;
Function<void(String const&)> on_inspector_executed_console_script;
Function<void(String const&)> on_inspector_exported_inspector_html;
Function<IPC::File()> on_request_worker_agent;
virtual Web::DevicePixelSize viewport_size() const = 0;
virtual Gfx::IntPoint to_content_position(Gfx::IntPoint widget_position) const = 0;
virtual Gfx::IntPoint to_widget_position(Gfx::IntPoint content_position) const = 0;
protected:
static constexpr auto ZOOM_MIN_LEVEL = 0.3f;
static constexpr auto ZOOM_MAX_LEVEL = 5.0f;
static constexpr auto ZOOM_STEP = 0.1f;
ViewImplementation();
WebContentClient& client();
WebContentClient const& client() const;
u64 page_id() const;
virtual void update_zoom() = 0;
void handle_resize();
enum class CreateNewClient {
No,
Yes,
};
virtual void initialize_client(CreateNewClient = CreateNewClient::Yes) { }
enum class LoadErrorPage {
No,
Yes,
};
void handle_web_content_process_crash(LoadErrorPage = LoadErrorPage::Yes);
struct SharedBitmap {
i32 id { -1 };
Web::DevicePixelSize last_painted_size;
RefPtr<Gfx::Bitmap> bitmap;
};
struct ClientState {
RefPtr<WebContentClient> client;
String client_handle;
SharedBitmap front_bitmap;
SharedBitmap back_bitmap;
u64 page_index { 0 };
bool has_usable_bitmap { false };
} m_client_state;
URL::URL m_url;
float m_zoom_level { 1.0 };
float m_device_pixel_ratio { 1.0 };
Queue<Web::InputEvent> m_pending_input_events;
RefPtr<Core::Timer> m_backing_store_shrink_timer;
RefPtr<Gfx::Bitmap> m_backup_bitmap;
Web::DevicePixelSize m_backup_bitmap_size;
size_t m_crash_count = 0;
RefPtr<Core::Timer> m_repeated_crash_timer;
RefPtr<Core::Promise<LexicalPath>> m_pending_screenshot;
RefPtr<Core::Promise<String>> m_pending_info_request;
Web::HTML::AudioPlayState m_audio_play_state { Web::HTML::AudioPlayState::Paused };
size_t m_number_of_elements_playing_audio { 0 };
Web::HTML::MuteState m_mute_state { Web::HTML::MuteState::Unmuted };
};
}