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ladybird/Libraries/LibWebView/Application.h
Timothy Flynn b169a98495 LibWeb+LibWebView+WebContent: Introduce a basic about:settings page 
This adds a basic settings page to manage persistent Ladybird settings.
As a first pass, this exposes settings for the new tab page URL and the
default search engine.

The way the search engine option works is that once search is enabled,
the user must choose their default search engine; we do not apply any
default automatically. Search remains disabled until this is done.

There are a couple of improvements that we should make here:

* Settings changes are not broadcasted to all open about:settings pages.
  So if two instances are open, and the user changes the search engine
  in one instance, the other instance will have a stale UI.

* Adding an IPC per setting is going to get annoying. It would be nice
  if we can come up with a smaller set of IPCs to send only the relevant
  changed settings.
2025-03-22 17:27:45 +01:00

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/*
* Copyright (c) 2024, Andrew Kaster <akaster@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Badge.h>
#include <AK/ByteString.h>
#include <AK/LexicalPath.h>
#include <AK/Optional.h>
#include <AK/Swift.h>
#include <LibCore/EventLoop.h>
#include <LibCore/Forward.h>
#include <LibDevTools/DevToolsDelegate.h>
#include <LibDevTools/Forward.h>
#include <LibImageDecoderClient/Client.h>
#include <LibMain/Main.h>
#include <LibRequests/RequestClient.h>
#include <LibURL/URL.h>
#include <LibWebView/Options.h>
#include <LibWebView/Process.h>
#include <LibWebView/ProcessManager.h>
#include <LibWebView/Settings.h>
namespace WebView {
class Application : public DevTools::DevToolsDelegate {
AK_MAKE_NONCOPYABLE(Application);
public:
virtual ~Application();
int execute();
static Application& the() { return *s_the; }
static Settings& settings() { return the().m_settings; }
static BrowserOptions const& browser_options() { return the().m_browser_options; }
static WebContentOptions& web_content_options() { return the().m_web_content_options; }
static Requests::RequestClient& request_server_client() { return *the().m_request_server_client; }
static ImageDecoderClient::Client& image_decoder_client() { return *the().m_image_decoder_client; }
static CookieJar& cookie_jar() { return *the().m_cookie_jar; }
Core::EventLoop& event_loop() { return m_event_loop; }
ErrorOr<NonnullRefPtr<WebContentClient>> launch_web_content_process(ViewImplementation&);
ErrorOr<void> launch_services();
void add_child_process(Process&&);
// FIXME: Should these methods be part of Application, instead of deferring to ProcessManager?
#if defined(AK_OS_MACH)
void set_process_mach_port(pid_t, Core::MachPort&&);
#endif
Optional<Process&> find_process(pid_t);
void send_updated_process_statistics_to_view(ViewImplementation&);
void send_current_settings_to_view(ViewImplementation&);
void send_available_search_engines_to_view(ViewImplementation&);
ErrorOr<LexicalPath> path_for_downloaded_file(StringView file) const;
enum class DevtoolsState {
Disabled,
Enabled,
};
ErrorOr<DevtoolsState> toggle_devtools_enabled();
void refresh_tab_list();
protected:
template<DerivedFrom<Application> ApplicationType>
static NonnullOwnPtr<ApplicationType> create(Main::Arguments& arguments)
{
auto app = adopt_own(*new ApplicationType { {}, arguments });
app->initialize(arguments);
return app;
}
Application();
virtual void process_did_exit(Process&&);
virtual void create_platform_arguments(Core::ArgsParser&) { }
virtual void create_platform_options(BrowserOptions&, WebContentOptions&) { }
virtual Optional<ByteString> ask_user_for_download_folder() const { return {}; }
private:
void initialize(Main::Arguments const& arguments);
void launch_spare_web_content_process();
ErrorOr<void> launch_request_server();
ErrorOr<void> launch_image_decoder_server();
ErrorOr<void> launch_devtools_server();
virtual Vector<DevTools::TabDescription> tab_list() const override;
virtual Vector<DevTools::CSSProperty> css_property_list() const override;
virtual void inspect_tab(DevTools::TabDescription const&, OnTabInspectionComplete) const override;
virtual void listen_for_dom_properties(DevTools::TabDescription const&, OnDOMNodePropertiesReceived) const override;
virtual void stop_listening_for_dom_properties(DevTools::TabDescription const&) const override;
virtual void inspect_dom_node(DevTools::TabDescription const&, DOMNodeProperties::Type, Web::UniqueNodeID, Optional<Web::CSS::Selector::PseudoElement::Type>) const override;
virtual void clear_inspected_dom_node(DevTools::TabDescription const&) const override;
virtual void highlight_dom_node(DevTools::TabDescription const&, Web::UniqueNodeID, Optional<Web::CSS::Selector::PseudoElement::Type>) const override;
virtual void clear_highlighted_dom_node(DevTools::TabDescription const&) const override;
virtual void listen_for_dom_mutations(DevTools::TabDescription const&, OnDOMMutationReceived) const override;
virtual void stop_listening_for_dom_mutations(DevTools::TabDescription const&) const override;
virtual void get_dom_node_inner_html(DevTools::TabDescription const&, Web::UniqueNodeID, OnDOMNodeHTMLReceived) const override;
virtual void get_dom_node_outer_html(DevTools::TabDescription const&, Web::UniqueNodeID, OnDOMNodeHTMLReceived) const override;
virtual void set_dom_node_outer_html(DevTools::TabDescription const&, Web::UniqueNodeID, String const&, OnDOMNodeEditComplete) const override;
virtual void set_dom_node_text(DevTools::TabDescription const&, Web::UniqueNodeID, String const&, OnDOMNodeEditComplete) const override;
virtual void set_dom_node_tag(DevTools::TabDescription const&, Web::UniqueNodeID, String const&, OnDOMNodeEditComplete) const override;
virtual void add_dom_node_attributes(DevTools::TabDescription const&, Web::UniqueNodeID, ReadonlySpan<Attribute>, OnDOMNodeEditComplete) const override;
virtual void replace_dom_node_attribute(DevTools::TabDescription const&, Web::UniqueNodeID, String const&, ReadonlySpan<Attribute>, OnDOMNodeEditComplete) const override;
virtual void create_child_element(DevTools::TabDescription const&, Web::UniqueNodeID, OnDOMNodeEditComplete) const override;
virtual void insert_dom_node_before(DevTools::TabDescription const&, Web::UniqueNodeID, Web::UniqueNodeID, Optional<Web::UniqueNodeID>, OnDOMNodeEditComplete) const override;
virtual void clone_dom_node(DevTools::TabDescription const&, Web::UniqueNodeID, OnDOMNodeEditComplete) const override;
virtual void remove_dom_node(DevTools::TabDescription const&, Web::UniqueNodeID, OnDOMNodeEditComplete) const override;
virtual void retrieve_style_sheets(DevTools::TabDescription const&, OnStyleSheetsReceived) const override;
virtual void retrieve_style_sheet_source(DevTools::TabDescription const&, Web::CSS::StyleSheetIdentifier const&) const override;
virtual void listen_for_style_sheet_sources(DevTools::TabDescription const&, OnStyleSheetSourceReceived) const override;
virtual void stop_listening_for_style_sheet_sources(DevTools::TabDescription const&) const override;
virtual void evaluate_javascript(DevTools::TabDescription const&, String const&, OnScriptEvaluationComplete) const override;
virtual void listen_for_console_messages(DevTools::TabDescription const&, OnConsoleMessageAvailable, OnReceivedConsoleMessages) const override;
virtual void stop_listening_for_console_messages(DevTools::TabDescription const&) const override;
virtual void request_console_messages(DevTools::TabDescription const&, i32) const override;
static Application* s_the;
Settings m_settings;
BrowserOptions m_browser_options;
WebContentOptions m_web_content_options;
RefPtr<Requests::RequestClient> m_request_server_client;
RefPtr<ImageDecoderClient::Client> m_image_decoder_client;
RefPtr<WebContentClient> m_spare_web_content_process;
bool m_has_queued_task_to_launch_spare_web_content_process { false };
RefPtr<Database> m_database;
OwnPtr<CookieJar> m_cookie_jar;
OwnPtr<Core::TimeZoneWatcher> m_time_zone_watcher;
Core::EventLoop m_event_loop;
ProcessManager m_process_manager;
bool m_in_shutdown { false };
OwnPtr<DevTools::DevToolsServer> m_devtools;
} SWIFT_IMMORTAL_REFERENCE;
}
#define WEB_VIEW_APPLICATION(ApplicationType) \
public: \
static NonnullOwnPtr<ApplicationType> create(Main::Arguments& arguments) \
{ \
return WebView::Application::create<ApplicationType>(arguments); \
} \
\
ApplicationType(Badge<WebView::Application>, Main::Arguments&);
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