LibWeb: Avoid including Navigable.h in headers

This greatly reduces how much is recompiled when changing Navigable.h,
from >1000 to 82.

Libraries/LibWeb/CMakeLists.txt

@@ -654,6 +654,7 @@ set(SOURCES
     HTML/TraversableNavigable.cpp
     HTML/UniversalGlobalScope.cpp
     HTML/UserActivation.cpp
+    HTML/UserNavigationInvolvement.cpp
     HTML/ValidityState.cpp
     HTML/VideoTrack.cpp
     HTML/VideoTrackList.cpp

Libraries/LibWeb/CSS/CSSImportRule.cpp

@@ -18,6 +18,7 @@
 #include <LibWeb/CSS/StyleComputer.h>
 #include <LibWeb/DOM/Document.h>
 #include <LibWeb/DOMURL/DOMURL.h>
+#include <LibWeb/Fetch/Infrastructure/HTTP/Responses.h>
 #include <LibWeb/HTML/Window.h>
 
 namespace Web::CSS {

Libraries/LibWeb/CSS/CSSStyleProperties.cpp

@@ -24,6 +24,7 @@
 #include <LibWeb/CSS/StyleValues/TransformationStyleValue.h>
 #include <LibWeb/DOM/Document.h>
 #include <LibWeb/DOM/Element.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/Infra/Strings.h>
 #include <LibWeb/Layout/Node.h>
 #include <LibWeb/Painting/BoxModelMetrics.h>

Libraries/LibWeb/CSS/Length.cpp

@@ -15,6 +15,7 @@
 #include <LibWeb/CSS/StyleComputer.h>
 #include <LibWeb/DOM/Document.h>
 #include <LibWeb/HTML/BrowsingContext.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/HTML/Window.h>
 #include <LibWeb/Layout/Node.h>
 

Libraries/LibWeb/CSS/StyleValues/StyleValue.cpp

@@ -74,6 +74,7 @@
 #include <LibWeb/CSS/StyleValues/URLStyleValue.h>
 #include <LibWeb/CSS/StyleValues/UnicodeRangeStyleValue.h>
 #include <LibWeb/CSS/StyleValues/UnresolvedStyleValue.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/Layout/Node.h>
 
 namespace Web::CSS {

Libraries/LibWeb/CSS/VisualViewport.cpp

@@ -11,6 +11,7 @@
 #include <LibWeb/DOM/Document.h>
 #include <LibWeb/DOM/EventDispatcher.h>
 #include <LibWeb/HTML/EventNames.h>
+#include <LibWeb/HTML/Navigable.h>
 
 namespace Web::CSS {
 

Libraries/LibWeb/DOM/Document.h

@@ -36,6 +36,7 @@
 #include <LibWeb/HTML/HTMLScriptElement.h>
 #include <LibWeb/HTML/History.h>
 #include <LibWeb/HTML/NavigationType.h>
+#include <LibWeb/HTML/PaintConfig.h>
 #include <LibWeb/HTML/SandboxingFlagSet.h>
 #include <LibWeb/HTML/Scripting/Environments.h>
 #include <LibWeb/HTML/VisibilityState.h>

Libraries/LibWeb/DOM/DocumentLoading.h

@@ -9,6 +9,8 @@
 
 #include <LibWeb/DOM/Document.h>
 #include <LibWeb/Fetch/Infrastructure/HTTP/Responses.h>
+#include <LibWeb/HTML/Navigable.h>
+#include <LibWeb/HTML/UserNavigationInvolvement.h>
 
 namespace Web {
 

Libraries/LibWeb/Fetch/Body.cpp

@@ -19,6 +19,7 @@
 #include <LibWeb/Fetch/Body.h>
 #include <LibWeb/Fetch/Infrastructure/HTTP.h>
 #include <LibWeb/Fetch/Infrastructure/HTTP/Bodies.h>
+#include <LibWeb/Fetch/Infrastructure/HTTP/Headers.h>
 #include <LibWeb/FileAPI/Blob.h>
 #include <LibWeb/FileAPI/File.h>
 #include <LibWeb/HTML/Scripting/TemporaryExecutionContext.h>

Libraries/LibWeb/Fetch/Fetching/Fetching.cpp

@@ -45,6 +45,7 @@
 #include <LibWeb/FileAPI/Blob.h>
 #include <LibWeb/FileAPI/BlobURLStore.h>
 #include <LibWeb/HTML/EventLoop/EventLoop.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/HTML/Scripting/Environments.h>
 #include <LibWeb/HTML/Scripting/TemporaryExecutionContext.h>
 #include <LibWeb/HTML/Window.h>

Libraries/LibWeb/Forward.h

@@ -781,6 +781,7 @@ struct EnvironmentSettingsObject;
 struct NavigationParams;
 struct OpenerPolicy;
 struct OpenerPolicyEnforcementResult;
+struct PaintConfig;
 struct PolicyContainer;
 struct POSTResource;
 struct ScrollOptions;
@@ -788,6 +789,7 @@ struct ScrollToOptions;
 struct SerializedFormData;
 struct SerializedPolicyContainer;
 struct SerializedTransferRecord;
+struct SourceSnapshotParams;
 struct StructuredSerializeOptions;
 struct SyntheticRealmSettings;
 struct ToggleTaskTracker;

Libraries/LibWeb/HTML/CloseWatcher.cpp

@@ -15,6 +15,7 @@
 #include <LibWeb/HTML/CloseWatcherManager.h>
 #include <LibWeb/HTML/EventHandler.h>
 #include <LibWeb/HTML/HTMLIFrameElement.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/HTML/Window.h>
 
 namespace Web::HTML {

Libraries/LibWeb/HTML/CrossOrigin/Reporting.cpp

@@ -12,6 +12,7 @@
 #include <LibWeb/HTML/BrowsingContext.h>
 #include <LibWeb/HTML/CrossOrigin/AbstractOperations.h>
 #include <LibWeb/HTML/CrossOrigin/Reporting.h>
+#include <LibWeb/HTML/Navigable.h>
 
 namespace Web::HTML {
 

Libraries/LibWeb/HTML/Focus.cpp

@@ -14,6 +14,7 @@
 #include <LibWeb/DOM/ShadowRoot.h>
 #include <LibWeb/HTML/Focus.h>
 #include <LibWeb/HTML/HTMLInputElement.h>
+#include <LibWeb/HTML/Navigation.h>
 #include <LibWeb/HTML/TraversableNavigable.h>
 #include <LibWeb/UIEvents/FocusEvent.h>
 

Libraries/LibWeb/HTML/HTMLBodyElement.cpp

@@ -12,6 +12,7 @@
 #include <LibWeb/DOM/Document.h>
 #include <LibWeb/Gamepad/EventNames.h>
 #include <LibWeb/HTML/HTMLBodyElement.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/HTML/Numbers.h>
 #include <LibWeb/HTML/Parser/HTMLParser.h>
 #include <LibWeb/HTML/Window.h>

Libraries/LibWeb/HTML/HTMLFormElement.cpp

@@ -30,6 +30,7 @@
 #include <LibWeb/HTML/HTMLOutputElement.h>
 #include <LibWeb/HTML/HTMLSelectElement.h>
 #include <LibWeb/HTML/HTMLTextAreaElement.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/HTML/RadioNodeList.h>
 #include <LibWeb/HTML/SubmitEvent.h>
 #include <LibWeb/Infra/CharacterTypes.h>

Libraries/LibWeb/HTML/HTMLFormElement.h

@@ -10,8 +10,9 @@
 
 #include <AK/Time.h>
 #include <LibWeb/ARIA/Roles.h>
+#include <LibWeb/Bindings/NavigationPrototype.h>
 #include <LibWeb/HTML/HTMLElement.h>
-#include <LibWeb/HTML/Navigable.h>
+#include <LibWeb/HTML/UserNavigationInvolvement.h>
 
 namespace Web::HTML {
 

Libraries/LibWeb/HTML/HTMLHyperlinkElementUtils.h

@@ -9,8 +9,8 @@
 #include <LibURL/URL.h>
 #include <LibWeb/Forward.h>
 #include <LibWeb/HTML/EventLoop/Task.h>
-#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/HTML/TokenizedFeatures.h>
+#include <LibWeb/HTML/UserNavigationInvolvement.h>
 
 namespace Web::HTML {
 

Libraries/LibWeb/HTML/HTMLObjectElement.cpp

@@ -23,6 +23,7 @@
 #include <LibWeb/HTML/HTMLMediaElement.h>
 #include <LibWeb/HTML/HTMLObjectElement.h>
 #include <LibWeb/HTML/ImageRequest.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/HTML/Numbers.h>
 #include <LibWeb/HTML/Parser/HTMLParser.h>
 #include <LibWeb/HTML/PotentialCORSRequest.h>

Libraries/LibWeb/HTML/HTMLSelectElement.cpp

@@ -21,6 +21,7 @@
 #include <LibWeb/HTML/HTMLOptGroupElement.h>
 #include <LibWeb/HTML/HTMLOptionElement.h>
 #include <LibWeb/HTML/HTMLSelectElement.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/HTML/Numbers.h>
 #include <LibWeb/HTML/Window.h>
 #include <LibWeb/Infra/Strings.h>

Libraries/LibWeb/HTML/HTMLTrackElement.cpp

@@ -14,6 +14,8 @@
 #include <LibWeb/Fetch/Fetching/Fetching.h>
 #include <LibWeb/Fetch/Infrastructure/FetchAlgorithms.h>
 #include <LibWeb/Fetch/Infrastructure/FetchController.h>
+#include <LibWeb/Fetch/Infrastructure/HTTP/Responses.h>
+#include <LibWeb/Fetch/Infrastructure/HTTP/Statuses.h>
 #include <LibWeb/HTML/HTMLMediaElement.h>
 #include <LibWeb/HTML/HTMLTrackElement.h>
 #include <LibWeb/HTML/PotentialCORSRequest.h>

Libraries/LibWeb/HTML/InitialInsertion.h

@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2025, Sam Atkins <sam@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+namespace Web::HTML {
+
+enum class InitialInsertion : u8 {
+    Yes,
+    No,
+};
+
+}

Libraries/LibWeb/HTML/Location.cpp

@@ -17,6 +17,7 @@
 #include <LibWeb/DOM/Document.h>
 #include <LibWeb/HTML/CrossOrigin/AbstractOperations.h>
 #include <LibWeb/HTML/Location.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/HTML/Navigation.h>
 #include <LibWeb/HTML/Window.h>
 #include <LibWeb/WebIDL/DOMException.h>

Libraries/LibWeb/HTML/Location.h

@@ -10,10 +10,10 @@
 #include <LibJS/Forward.h>
 #include <LibJS/Runtime/Completion.h>
 #include <LibURL/URL.h>
+#include <LibWeb/Bindings/NavigationPrototype.h>
 #include <LibWeb/Bindings/PlatformObject.h>
 #include <LibWeb/Forward.h>
 #include <LibWeb/HTML/CrossOrigin/CrossOriginPropertyDescriptorMap.h>
-#include <LibWeb/HTML/Navigable.h>
 
 namespace Web::HTML {
 

Libraries/LibWeb/HTML/Navigable.cpp

@@ -2503,20 +2503,6 @@ void Navigable::inform_the_navigation_api_about_aborting_navigation()
     }));
 }
 
-// https://html.spec.whatwg.org/multipage/browsing-the-web.html#event-uni
-UserNavigationInvolvement user_navigation_involvement(DOM::Event const& event)
-{
-    // For convenience at certain call sites, the user navigation involvement for an Event event is defined as follows:
-
-    // 1. Assert: this algorithm is being called as part of an activation behavior definition.
-    // 2. Assert: event's type is "click".
-    VERIFY(event.type() == "click"_fly_string);
-
-    // 3. If event's isTrusted is initialized to true, then return "activation".
-    // 4. Return "none".
-    return event.is_trusted() ? UserNavigationInvolvement::Activation : UserNavigationInvolvement::None;
-}
-
 bool Navigable::is_focused() const
 {
     return &m_page->focused_navigable() == this;

Libraries/LibWeb/HTML/Navigable.h

@@ -17,6 +17,7 @@
 #include <LibWeb/Forward.h>
 #include <LibWeb/HTML/ActivateTab.h>
 #include <LibWeb/HTML/HistoryHandlingBehavior.h>
+#include <LibWeb/HTML/InitialInsertion.h>
 #include <LibWeb/HTML/NavigationParams.h>
 #include <LibWeb/HTML/POSTResource.h>
 #include <LibWeb/HTML/RenderingThread.h>
@@ -24,6 +25,7 @@
 #include <LibWeb/HTML/SourceSnapshotParams.h>
 #include <LibWeb/HTML/StructuredSerializeTypes.h>
 #include <LibWeb/HTML/TokenizedFeatures.h>
+#include <LibWeb/HTML/WindowType.h>
 #include <LibWeb/InvalidateDisplayList.h>
 #include <LibWeb/Page/EventHandler.h>
 #include <LibWeb/Painting/BackingStoreManager.h>
@@ -32,24 +34,11 @@
 
 namespace Web::HTML {
 
-enum class InitialInsertion : u8 {
-    Yes,
-    No,
-};
-
 // https://html.spec.whatwg.org/multipage/browsing-the-web.html#target-snapshot-params
 struct TargetSnapshotParams {
     SandboxingFlagSet sandboxing_flags {};
 };
 
-struct PaintConfig {
-    bool paint_overlay { false };
-    bool should_show_line_box_borders { false };
-    Optional<Gfx::IntRect> canvas_fill_rect {};
-
-    bool operator==(PaintConfig const& other) const = default;
-};
-
 // https://html.spec.whatwg.org/multipage/document-sequences.html#navigable
 class WEB_API Navigable : public JS::Cell {
     GC_CELL(Navigable, JS::Cell);
@@ -111,12 +100,6 @@ public:
 
     [[nodiscard]] bool is_focused() const;
 
-    enum class WindowType {
-        ExistingOrNone,
-        NewAndUnrestricted,
-        NewWithNoOpener,
-    };
-
     struct ChosenNavigable {
         GC::Ptr<Navigable> navigable;
         WindowType window_type;
@@ -306,6 +289,5 @@ WEB_API HashTable<GC::RawRef<Navigable>>& all_navigables();
 bool navigation_must_be_a_replace(URL::URL const& url, DOM::Document const& document);
 void finalize_a_cross_document_navigation(GC::Ref<Navigable>, HistoryHandlingBehavior, UserNavigationInvolvement, GC::Ref<SessionHistoryEntry>);
 void perform_url_and_history_update_steps(DOM::Document& document, URL::URL new_url, Optional<SerializationRecord> = {}, HistoryHandlingBehavior history_handling = HistoryHandlingBehavior::Replace);
-UserNavigationInvolvement user_navigation_involvement(DOM::Event const&);
 
 }

Libraries/LibWeb/HTML/NavigableContainer.cpp

@@ -351,4 +351,18 @@ bool NavigableContainer::currently_delays_the_load_event() const
     return false;
 }
 
+bool NavigableContainer::content_navigable_has_session_history_entry_and_ready_for_navigation() const
+{
+    if (!content_navigable())
+        return false;
+    return m_content_navigable->has_session_history_entry_and_ready_for_navigation();
+}
+
+void NavigableContainer::set_content_navigable_has_session_history_entry_and_ready_for_navigation()
+{
+    if (!content_navigable())
+        return;
+    content_navigable()->set_has_session_history_entry_and_ready_for_navigation();
+}
+
 }

Libraries/LibWeb/HTML/NavigableContainer.h

@@ -8,7 +8,7 @@
 
 #include <LibWeb/Export.h>
 #include <LibWeb/HTML/HTMLElement.h>
-#include <LibWeb/HTML/Navigable.h>
+#include <LibWeb/HTML/InitialInsertion.h>
 
 namespace Web::HTML {
 
@@ -39,12 +39,7 @@ public:
     // https://html.spec.whatwg.org/multipage/iframe-embed-object.html#potentially-delays-the-load-event
     bool currently_delays_the_load_event() const;
 
-    bool content_navigable_has_session_history_entry_and_ready_for_navigation() const
+    bool content_navigable_has_session_history_entry_and_ready_for_navigation() const;
-    {
-        if (!content_navigable())
-            return false;
-        return m_content_navigable->has_session_history_entry_and_ready_for_navigation();
-    }
 
 protected:
     NavigableContainer(DOM::Document&, DOM::QualifiedName);
@@ -64,12 +59,7 @@ protected:
 
     void set_potentially_delays_the_load_event(bool value) { m_potentially_delays_the_load_event = value; }
 
-    void set_content_navigable_has_session_history_entry_and_ready_for_navigation()
+    void set_content_navigable_has_session_history_entry_and_ready_for_navigation();
-    {
-        if (!content_navigable())
-            return;
-        content_navigable()->set_has_session_history_entry_and_ready_for_navigation();
-    }
 
 private:
     virtual bool is_navigable_container() const override { return true; }

Libraries/LibWeb/HTML/Navigation.h

@@ -10,9 +10,9 @@
 #include <LibWeb/Bindings/NavigationPrototype.h>
 #include <LibWeb/DOM/EventTarget.h>
 #include <LibWeb/HTML/HistoryHandlingBehavior.h>
-#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/HTML/NavigationType.h>
 #include <LibWeb/HTML/StructuredSerializeTypes.h>
+#include <LibWeb/HTML/UserNavigationInvolvement.h>
 
 namespace Web::HTML {
 

Libraries/LibWeb/HTML/NavigationParams.h

@@ -17,16 +17,10 @@
 #include <LibWeb/HTML/CrossOrigin/OpenerPolicyEnforcementResult.h>
 #include <LibWeb/HTML/PolicyContainers.h>
 #include <LibWeb/HTML/SandboxingFlagSet.h>
+#include <LibWeb/HTML/UserNavigationInvolvement.h>
 
 namespace Web::HTML {
 
-// https://html.spec.whatwg.org/multipage/browsing-the-web.html#user-navigation-involvement
-enum class UserNavigationInvolvement {
-    BrowserUI,
-    Activation,
-    None,
-};
-
 // https://html.spec.whatwg.org/multipage/browsing-the-web.html#navigation-params
 struct NavigationParams : GC::Cell {
     GC_CELL(NavigationParams, GC::Cell);

Libraries/LibWeb/HTML/PaintConfig.h

@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2025, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+namespace Web::HTML {
+
+struct PaintConfig {
+    bool paint_overlay { false };
+    bool should_show_line_box_borders { false };
+    Optional<Gfx::IntRect> canvas_fill_rect {};
+
+    bool operator==(PaintConfig const& other) const = default;
+};
+
+}

Libraries/LibWeb/HTML/Scripting/WindowEnvironmentSettingsObject.cpp

@@ -7,6 +7,7 @@
 #include <LibWeb/Bindings/Intrinsics.h>
 #include <LibWeb/Bindings/PrincipalHostDefined.h>
 #include <LibWeb/DOM/Document.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/HTML/Scripting/WindowEnvironmentSettingsObject.h>
 #include <LibWeb/HTML/Window.h>
 

Libraries/LibWeb/HTML/Storage.cpp

@@ -10,6 +10,7 @@
 #include <LibGC/RootVector.h>
 #include <LibWeb/Bindings/Intrinsics.h>
 #include <LibWeb/Bindings/StoragePrototype.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/HTML/Storage.h>
 #include <LibWeb/HTML/StorageEvent.h>
 #include <LibWeb/HTML/Window.h>

Libraries/LibWeb/HTML/UserNavigationInvolvement.cpp

@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2024, Andrew Kaster <andrew@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibWeb/DOM/Event.h>
+#include <LibWeb/HTML/UserNavigationInvolvement.h>
+
+namespace Web::HTML {
+
+// https://html.spec.whatwg.org/multipage/browsing-the-web.html#event-uni
+UserNavigationInvolvement user_navigation_involvement(DOM::Event const& event)
+{
+    // For convenience at certain call sites, the user navigation involvement for an Event event is defined as follows:
+
+    // 1. Assert: this algorithm is being called as part of an activation behavior definition.
+    // 2. Assert: event's type is "click".
+    VERIFY(event.type() == "click"_fly_string);
+
+    // 3. If event's isTrusted is initialized to true, then return "activation".
+    // 4. Return "none".
+    return event.is_trusted() ? UserNavigationInvolvement::Activation : UserNavigationInvolvement::None;
+}
+
+}

Libraries/LibWeb/HTML/UserNavigationInvolvement.h

@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2023, Andrew Kaster <andrew@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibWeb/Forward.h>
+
+namespace Web::HTML {
+
+// https://html.spec.whatwg.org/multipage/browsing-the-web.html#user-navigation-involvement
+enum class UserNavigationInvolvement {
+    BrowserUI,
+    Activation,
+    None,
+};
+
+UserNavigationInvolvement user_navigation_involvement(DOM::Event const&);
+
+}

Libraries/LibWeb/HTML/Window.cpp

@@ -156,7 +156,7 @@ WebIDL::ExceptionOr<GC::Ptr<WindowProxy>> Window::window_open_steps(StringView u
         return nullptr;
 
     // 17. If noopener is true or windowType is "new with no opener", then return null.
-    if (no_opener == TokenizedFeature::NoOpener::Yes || window_type == Navigable::WindowType::NewWithNoOpener)
+    if (no_opener == TokenizedFeature::NoOpener::Yes || window_type == WindowType::NewWithNoOpener)
         return nullptr;
 
     // 18. Return targetNavigable's active WindowProxy.
@@ -254,7 +254,7 @@ WebIDL::ExceptionOr<Window::OpenedWindow> Window::window_open_steps_internal(Str
         return OpenedWindow {};
 
     // 15. If windowType is either "new and unrestricted" or "new with no opener", then:
-    if (window_type == Navigable::WindowType::NewAndUnrestricted || window_type == Navigable::WindowType::NewWithNoOpener) {
+    if (window_type == WindowType::NewAndUnrestricted || window_type == WindowType::NewWithNoOpener) {
         // 1. Set targetNavigable's active browsing context's is popup to the result of checking if a popup window is requested, given tokenizedFeatures.
         target_navigable->active_browsing_context()->set_is_popup(check_if_a_popup_window_is_requested(tokenized_features));
 

Libraries/LibWeb/HTML/Window.h

@@ -19,14 +19,13 @@
 #include <LibWeb/HTML/CrossOrigin/CrossOriginPropertyDescriptorMap.h>
 #include <LibWeb/HTML/GlobalEventHandlers.h>
 #include <LibWeb/HTML/MimeType.h>
-#include <LibWeb/HTML/Navigable.h>
-#include <LibWeb/HTML/Navigation.h>
 #include <LibWeb/HTML/Plugin.h>
 #include <LibWeb/HTML/ScrollOptions.h>
 #include <LibWeb/HTML/StructuredSerializeOptions.h>
 #include <LibWeb/HTML/UniversalGlobalScope.h>
 #include <LibWeb/HTML/WindowEventHandlers.h>
 #include <LibWeb/HTML/WindowOrWorkerGlobalScope.h>
+#include <LibWeb/HTML/WindowType.h>
 #include <LibWeb/RequestIdleCallback/IdleRequest.h>
 #include <LibWeb/WebIDL/Types.h>
 
@@ -123,7 +122,7 @@ public:
     struct OpenedWindow {
         GC::Ptr<Navigable> navigable;
         TokenizedFeature::NoOpener no_opener { TokenizedFeature::NoOpener::No };
-        Navigable::WindowType window_type { Navigable::WindowType::ExistingOrNone };
+        WindowType window_type { WindowType::ExistingOrNone };
     };
     WebIDL::ExceptionOr<OpenedWindow> window_open_steps_internal(StringView url, StringView target, StringView features);
 

Libraries/LibWeb/HTML/WindowProxy.cpp

@@ -14,6 +14,7 @@
 #include <LibWeb/DOM/EventTarget.h>
 #include <LibWeb/HTML/CrossOrigin/AbstractOperations.h>
 #include <LibWeb/HTML/CrossOrigin/Reporting.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/HTML/Scripting/Environments.h>
 #include <LibWeb/HTML/Window.h>
 #include <LibWeb/HTML/WindowProxy.h>

Libraries/LibWeb/HTML/WindowType.h

@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2023, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+namespace Web::HTML {
+
+enum class WindowType {
+    ExistingOrNone,
+    NewAndUnrestricted,
+    NewWithNoOpener,
+};
+
+}

Libraries/LibWeb/Internals/Internals.cpp

@@ -19,6 +19,7 @@
 #include <LibWeb/DOM/NodeList.h>
 #include <LibWeb/DOMURL/DOMURL.h>
 #include <LibWeb/HTML/HTMLElement.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/HTML/Window.h>
 #include <LibWeb/Internals/InternalGamepad.h>
 #include <LibWeb/Internals/Internals.h>

Libraries/LibWeb/Layout/NavigableContainerViewport.cpp

@@ -7,6 +7,7 @@
 #include <LibWeb/CSS/StyleValues/LengthStyleValue.h>
 #include <LibWeb/DOM/Document.h>
 #include <LibWeb/HTML/HTMLObjectElement.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/Layout/NavigableContainerViewport.h>
 #include <LibWeb/Layout/Viewport.h>
 #include <LibWeb/Painting/NavigableContainerViewportPaintable.h>

Libraries/LibWeb/Layout/Node.cpp

@@ -25,6 +25,7 @@
 #include <LibWeb/Dump.h>
 #include <LibWeb/HTML/FormAssociatedElement.h>
 #include <LibWeb/HTML/HTMLHtmlElement.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/Layout/BlockContainer.h>
 #include <LibWeb/Layout/FormattingContext.h>
 #include <LibWeb/Layout/Node.h>

Libraries/LibWeb/MixedContent/AbstractOperations.cpp

@@ -5,6 +5,7 @@
  */
 
 #include <LibWeb/Fetch/Response.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/HTML/Window.h>
 #include <LibWeb/MixedContent/AbstractOperations.h>
 #include <LibWeb/SecureContexts/AbstractOperations.h>

Libraries/LibWeb/Page/EventHandler.cpp

@@ -21,6 +21,7 @@
 #include <LibWeb/HTML/HTMLImageElement.h>
 #include <LibWeb/HTML/HTMLMediaElement.h>
 #include <LibWeb/HTML/HTMLVideoElement.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/HTML/Navigator.h>
 #include <LibWeb/Layout/Label.h>
 #include <LibWeb/Layout/Viewport.h>

Libraries/LibWeb/Painting/BackgroundPainting.cpp

@@ -7,6 +7,7 @@
  */
 
 #include <LibWeb/CSS/Sizing.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/Layout/Node.h>
 #include <LibWeb/Layout/TextNode.h>
 #include <LibWeb/Layout/Viewport.h>

Libraries/LibWeb/Painting/BackingStoreManager.h

@@ -7,7 +7,6 @@
 #pragma once
 
 #include <LibWeb/Export.h>
-#include <LibWeb/HTML/Navigable.h>
 
 namespace Web::Painting {
 

Libraries/LibWeb/Painting/LabelablePaintable.cpp

@@ -6,6 +6,7 @@
  */
 
 #include <LibWeb/HTML/BrowsingContext.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/Layout/Label.h>
 #include <LibWeb/Painting/LabelablePaintable.h>
 #include <LibWeb/UIEvents/MouseButton.h>

Libraries/LibWeb/Painting/MediaPaintable.cpp

@@ -10,6 +10,7 @@
 #include <LibWeb/HTML/BrowsingContext.h>
 #include <LibWeb/HTML/HTMLAudioElement.h>
 #include <LibWeb/HTML/HTMLVideoElement.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/Layout/ReplacedBox.h>
 #include <LibWeb/Page/EventHandler.h>
 #include <LibWeb/Page/Page.h>

Libraries/LibWeb/Painting/NavigableContainerViewportPaintable.cpp

@@ -5,6 +5,7 @@
  */
 
 #include <AK/Debug.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/HTML/NavigableContainer.h>
 #include <LibWeb/Layout/NavigableContainerViewport.h>
 #include <LibWeb/Layout/Viewport.h>

Libraries/LibWeb/Painting/PaintableBox.cpp

@@ -16,6 +16,7 @@
 #include <LibWeb/DOM/Position.h>
 #include <LibWeb/DOM/Range.h>
 #include <LibWeb/HTML/HTMLHtmlElement.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/HTML/Window.h>
 #include <LibWeb/Layout/BlockContainer.h>
 #include <LibWeb/Layout/InlineNode.h>

Libraries/LibWeb/Painting/TextPaintable.cpp

@@ -5,6 +5,7 @@
  */
 
 #include <LibWeb/HTML/BrowsingContext.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/Layout/Label.h>
 #include <LibWeb/Layout/LabelableNode.h>
 #include <LibWeb/Page/EventHandler.h>

Libraries/LibWeb/ReferrerPolicy/AbstractOperations.cpp

@@ -9,6 +9,7 @@
 #include <LibWeb/DOM/Document.h>
 #include <LibWeb/DOMURL/DOMURL.h>
 #include <LibWeb/Fetch/Infrastructure/HTTP/Requests.h>
+#include <LibWeb/Fetch/Infrastructure/HTTP/Responses.h>
 #include <LibWeb/Fetch/Infrastructure/URL.h>
 #include <LibWeb/HTML/Window.h>
 #include <LibWeb/ReferrerPolicy/AbstractOperations.h>

Libraries/LibWeb/SVG/SVGScriptElement.cpp

@@ -8,6 +8,7 @@
 #include <LibWeb/Bindings/SVGScriptElementPrototype.h>
 #include <LibWeb/Fetch/Fetching/Fetching.h>
 #include <LibWeb/Fetch/Infrastructure/FetchAlgorithms.h>
+#include <LibWeb/Fetch/Infrastructure/HTTP/Responses.h>
 #include <LibWeb/HTML/Scripting/ClassicScript.h>
 #include <LibWeb/Namespace.h>
 #include <LibWeb/SVG/AttributeNames.h>

Libraries/LibWeb/UIEvents/PointerEvent.cpp

@@ -5,6 +5,7 @@
  */
 
 #include <LibWeb/Bindings/PointerEventPrototype.h>
+#include <LibWeb/UIEvents/MouseButton.h>
 #include <LibWeb/UIEvents/PointerEvent.h>
 
 namespace Web::UIEvents {

Libraries/LibWeb/ViewTransition/ViewTransition.cpp

@@ -7,6 +7,7 @@
 #include <LibJS/Runtime/Realm.h>
 #include <LibWeb/CSS/CSSKeyframesRule.h>
 #include <LibWeb/HTML/EventLoop/EventLoop.h>
+#include <LibWeb/HTML/Navigable.h>
 #include <LibWeb/HTML/Scripting/TemporaryExecutionContext.h>
 #include <LibWeb/HTML/Window.h>
 #include <LibWeb/Layout/Node.h>