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	LibWeb: Let Document have a direct GCPtr to its containing Web::Page
With this change, Document now always has a Web::Page. This means we no longer rely on the breakable link between Document and BrowsingContext to find a relevant Web::Page. Fixes #22290
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					 12 changed files with 35 additions and 10 deletions
				
			
		|  | @ -0,0 +1,2 @@ | |||
| PASS! (Didn't crash) | ||||
| data:text/png, | ||||
|  | @ -0,0 +1,9 @@ | |||
| <script src="../include.js"></script> | ||||
| <script> | ||||
|     test(() => { | ||||
|         let e = document.createElement("div"); | ||||
|         e.innerHTML = "<img src='data:text/png,'>"; | ||||
|         println("PASS! (Didn't crash)"); | ||||
|         println(e.firstChild.src); | ||||
|     }); | ||||
| </script> | ||||
|  | @ -9,6 +9,7 @@ | |||
| #include <LibWeb/Bindings/HostDefined.h> | ||||
| #include <LibWeb/Bindings/Intrinsics.h> | ||||
| #include <LibWeb/HTML/Scripting/Environments.h> | ||||
| #include <LibWeb/Page/Page.h> | ||||
| 
 | ||||
| namespace Web::Bindings { | ||||
| 
 | ||||
|  | @ -17,6 +18,7 @@ void HostDefined::visit_edges(JS::Cell::Visitor& visitor) | |||
|     JS::Realm::HostDefined::visit_edges(visitor); | ||||
|     visitor.visit(environment_settings_object); | ||||
|     visitor.visit(intrinsics); | ||||
|     visitor.visit(page); | ||||
| } | ||||
| 
 | ||||
| } | ||||
|  |  | |||
|  | @ -14,9 +14,10 @@ | |||
| namespace Web::Bindings { | ||||
| 
 | ||||
| struct HostDefined : public JS::Realm::HostDefined { | ||||
|     HostDefined(JS::NonnullGCPtr<HTML::EnvironmentSettingsObject> eso, JS::NonnullGCPtr<Intrinsics> intrinsics) | ||||
|     HostDefined(JS::NonnullGCPtr<HTML::EnvironmentSettingsObject> eso, JS::NonnullGCPtr<Intrinsics> intrinsics, JS::NonnullGCPtr<Page> page) | ||||
|         : environment_settings_object(eso) | ||||
|         , intrinsics(intrinsics) | ||||
|         , page(page) | ||||
|     { | ||||
|     } | ||||
|     virtual ~HostDefined() override = default; | ||||
|  | @ -24,6 +25,7 @@ struct HostDefined : public JS::Realm::HostDefined { | |||
| 
 | ||||
|     JS::NonnullGCPtr<HTML::EnvironmentSettingsObject> environment_settings_object; | ||||
|     JS::NonnullGCPtr<Intrinsics> intrinsics; | ||||
|     JS::NonnullGCPtr<Page> page; | ||||
| }; | ||||
| 
 | ||||
| [[nodiscard]] inline HTML::EnvironmentSettingsObject& host_defined_environment_settings_object(JS::Realm& realm) | ||||
|  | @ -31,4 +33,9 @@ struct HostDefined : public JS::Realm::HostDefined { | |||
|     return *verify_cast<HostDefined>(realm.host_defined())->environment_settings_object; | ||||
| } | ||||
| 
 | ||||
| [[nodiscard]] inline Page& host_defined_page(JS::Realm& realm) | ||||
| { | ||||
|     return *verify_cast<HostDefined>(realm.host_defined())->page; | ||||
| } | ||||
| 
 | ||||
| } | ||||
|  |  | |||
|  | @ -236,6 +236,7 @@ WebIDL::ExceptionOr<JS::NonnullGCPtr<Document>> Document::create_and_initialize( | |||
|         // FIXME: Why do we assume `creation_url` is non-empty here? Is this a spec bug?
 | ||||
|         // FIXME: Why do we assume `top_level_creation_url` is non-empty here? Is this a spec bug?
 | ||||
|         HTML::WindowEnvironmentSettingsObject::setup( | ||||
|             browsing_context->page(), | ||||
|             creation_url.value(), | ||||
|             move(realm_execution_context), | ||||
|             navigation_params.reserved_environment.visit( | ||||
|  | @ -321,6 +322,7 @@ JS::NonnullGCPtr<Document> Document::create(JS::Realm& realm, AK::URL const& url | |||
| 
 | ||||
| Document::Document(JS::Realm& realm, const AK::URL& url) | ||||
|     : ParentNode(realm, *this, NodeType::DOCUMENT_NODE) | ||||
|     , m_page(Bindings::host_defined_page(realm)) | ||||
|     , m_style_computer(make<CSS::StyleComputer>(*this)) | ||||
|     , m_url(url) | ||||
| { | ||||
|  | @ -353,6 +355,7 @@ void Document::initialize(JS::Realm& realm) | |||
| void Document::visit_edges(Cell::Visitor& visitor) | ||||
| { | ||||
|     Base::visit_edges(visitor); | ||||
|     visitor.visit(m_page); | ||||
|     visitor.visit(m_window); | ||||
|     visitor.visit(m_layout_root); | ||||
|     visitor.visit(m_style_sheets); | ||||
|  | @ -1908,12 +1911,12 @@ void Document::update_readiness(HTML::DocumentReadyState readiness_value) | |||
| 
 | ||||
| Page* Document::page() | ||||
| { | ||||
|     return m_browsing_context ? &m_browsing_context->page() : nullptr; | ||||
|     return m_page; | ||||
| } | ||||
| 
 | ||||
| Page const* Document::page() const | ||||
| { | ||||
|     return m_browsing_context ? &m_browsing_context->page() : nullptr; | ||||
|     return m_page; | ||||
| } | ||||
| 
 | ||||
| EventTarget* Document::get_parent(Event const& event) | ||||
|  |  | |||
|  | @ -572,6 +572,7 @@ private: | |||
| 
 | ||||
|     Element* find_a_potential_indicated_element(FlyString const& fragment) const; | ||||
| 
 | ||||
|     JS::NonnullGCPtr<Page> m_page; | ||||
|     OwnPtr<CSS::StyleComputer> m_style_computer; | ||||
|     JS::GCPtr<CSS::StyleSheetList> m_style_sheets; | ||||
|     JS::GCPtr<Node> m_hovered_node; | ||||
|  |  | |||
|  | @ -175,6 +175,7 @@ WebIDL::ExceptionOr<BrowsingContext::BrowsingContextAndDocument> BrowsingContext | |||
| 
 | ||||
|     // 12. Set up a window environment settings object with about:blank, realm execution context, null, topLevelCreationURL, and topLevelOrigin.
 | ||||
|     WindowEnvironmentSettingsObject::setup( | ||||
|         page, | ||||
|         AK::URL("about:blank"), | ||||
|         move(realm_execution_context), | ||||
|         {}, | ||||
|  |  | |||
|  | @ -29,7 +29,7 @@ void WindowEnvironmentSettingsObject::visit_edges(JS::Cell::Visitor& visitor) | |||
| } | ||||
| 
 | ||||
| // https://html.spec.whatwg.org/multipage/window-object.html#set-up-a-window-environment-settings-object
 | ||||
| void WindowEnvironmentSettingsObject::setup(AK::URL const& creation_url, NonnullOwnPtr<JS::ExecutionContext> execution_context, Optional<Environment> reserved_environment, AK::URL top_level_creation_url, Origin top_level_origin) | ||||
| void WindowEnvironmentSettingsObject::setup(Page& page, AK::URL const& creation_url, NonnullOwnPtr<JS::ExecutionContext> execution_context, Optional<Environment> reserved_environment, AK::URL top_level_creation_url, Origin top_level_origin) | ||||
| { | ||||
|     // 1. Let realm be the value of execution context's Realm component.
 | ||||
|     auto realm = execution_context->realm; | ||||
|  | @ -74,7 +74,7 @@ void WindowEnvironmentSettingsObject::setup(AK::URL const& creation_url, Nonnull | |||
|     // 7. Set realm's [[HostDefined]] field to settings object.
 | ||||
|     // Non-Standard: We store the ESO next to the web intrinsics in a custom HostDefined object
 | ||||
|     auto intrinsics = realm->heap().allocate<Bindings::Intrinsics>(*realm, *realm); | ||||
|     auto host_defined = make<Bindings::HostDefined>(settings_object, intrinsics); | ||||
|     auto host_defined = make<Bindings::HostDefined>(settings_object, intrinsics, page); | ||||
|     realm->set_host_defined(move(host_defined)); | ||||
| 
 | ||||
|     // Non-Standard: We cannot fully initialize window object until *after* the we set up
 | ||||
|  |  | |||
|  | @ -16,7 +16,7 @@ class WindowEnvironmentSettingsObject final : public EnvironmentSettingsObject { | |||
|     JS_DECLARE_ALLOCATOR(WindowEnvironmentSettingsObject); | ||||
| 
 | ||||
| public: | ||||
|     static void setup(AK::URL const& creation_url, NonnullOwnPtr<JS::ExecutionContext>, Optional<Environment>, AK::URL top_level_creation_url, Origin top_level_origin); | ||||
|     static void setup(Page&, AK::URL const& creation_url, NonnullOwnPtr<JS::ExecutionContext>, Optional<Environment>, AK::URL top_level_creation_url, Origin top_level_origin); | ||||
| 
 | ||||
|     virtual ~WindowEnvironmentSettingsObject() override; | ||||
| 
 | ||||
|  |  | |||
|  | @ -11,7 +11,7 @@ namespace Web::HTML { | |||
| 
 | ||||
| JS_DEFINE_ALLOCATOR(WorkerEnvironmentSettingsObject); | ||||
| 
 | ||||
| JS::NonnullGCPtr<WorkerEnvironmentSettingsObject> WorkerEnvironmentSettingsObject::setup(NonnullOwnPtr<JS::ExecutionContext> execution_context /* FIXME: null or an environment reservedEnvironment, a URL topLevelCreationURL, and an origin topLevelOrigin */) | ||||
| JS::NonnullGCPtr<WorkerEnvironmentSettingsObject> WorkerEnvironmentSettingsObject::setup(JS::NonnullGCPtr<Page> page, NonnullOwnPtr<JS::ExecutionContext> execution_context /* FIXME: null or an environment reservedEnvironment, a URL topLevelCreationURL, and an origin topLevelOrigin */) | ||||
| { | ||||
|     auto realm = execution_context->realm; | ||||
|     VERIFY(realm); | ||||
|  | @ -22,7 +22,7 @@ JS::NonnullGCPtr<WorkerEnvironmentSettingsObject> WorkerEnvironmentSettingsObjec | |||
|     settings_object->target_browsing_context = nullptr; | ||||
| 
 | ||||
|     auto intrinsics = realm->heap().allocate<Bindings::Intrinsics>(*realm, *realm); | ||||
|     auto host_defined = make<Bindings::HostDefined>(settings_object, intrinsics); | ||||
|     auto host_defined = make<Bindings::HostDefined>(settings_object, intrinsics, page); | ||||
|     realm->set_host_defined(move(host_defined)); | ||||
| 
 | ||||
|     // Non-Standard: We cannot fully initialize worker object until *after* the we set up
 | ||||
|  |  | |||
|  | @ -24,7 +24,7 @@ public: | |||
|     { | ||||
|     } | ||||
| 
 | ||||
|     static JS::NonnullGCPtr<WorkerEnvironmentSettingsObject> setup(NonnullOwnPtr<JS::ExecutionContext> execution_context /* FIXME: null or an environment reservedEnvironment, a URL topLevelCreationURL, and an origin topLevelOrigin */); | ||||
|     static JS::NonnullGCPtr<WorkerEnvironmentSettingsObject> setup(JS::NonnullGCPtr<Page> page, NonnullOwnPtr<JS::ExecutionContext> execution_context /* FIXME: null or an environment reservedEnvironment, a URL topLevelCreationURL, and an origin topLevelOrigin */); | ||||
| 
 | ||||
|     virtual ~WorkerEnvironmentSettingsObject() override = default; | ||||
| 
 | ||||
|  |  | |||
|  | @ -55,7 +55,7 @@ void DedicatedWorkerHost::run() | |||
| 
 | ||||
|     // 9. Set up a worker environment settings object with realm execution context,
 | ||||
|     //    outside settings, and unsafeWorkerCreationTime, and let inside settings be the result.
 | ||||
|     auto inner_settings = Web::HTML::WorkerEnvironmentSettingsObject::setup(move(realm_execution_context)); | ||||
|     auto inner_settings = Web::HTML::WorkerEnvironmentSettingsObject::setup(m_page, move(realm_execution_context)); | ||||
| 
 | ||||
|     auto& console_object = *inner_settings->realm().intrinsics().console_object(); | ||||
|     m_console = adopt_ref(*new Web::HTML::WorkerDebugConsoleClient(console_object.console())); | ||||
|  |  | |||
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	 Andreas Kling
						Andreas Kling