6 files changed, 93 insertions, 0 deletions
diff --git a/Userland/Libraries/LibWeb/Bindings/WindowObjectHelper.h b/Userland/Libraries/LibWeb/Bindings/WindowObjectHelper.h
index e836c222c5..f30f345391 100644
--- a/Userland/Libraries/LibWeb/Bindings/WindowObjectHelper.h
+++ b/Userland/Libraries/LibWeb/Bindings/WindowObjectHelper.h
@@ -280,6 +280,8 @@
 #include <LibWeb/Bindings/SelectionPrototype.h>
 #include <LibWeb/Bindings/ShadowRootConstructor.h>
 #include <LibWeb/Bindings/ShadowRootPrototype.h>
+#include <LibWeb/Bindings/StaticRangeConstructor.h>
+#include <LibWeb/Bindings/StaticRangePrototype.h>
 #include <LibWeb/Bindings/StorageConstructor.h>
 #include <LibWeb/Bindings/StoragePrototype.h>
 #include <LibWeb/Bindings/StyleSheetConstructor.h>
@@ -449,6 +451,7 @@
     ADD_WINDOW_OBJECT_INTERFACE(Screen)                                                             \
     ADD_WINDOW_OBJECT_INTERFACE(Selection)                                                          \
     ADD_WINDOW_OBJECT_INTERFACE(ShadowRoot)                                                         \
+    ADD_WINDOW_OBJECT_INTERFACE(StaticRange)                                                        \
     ADD_WINDOW_OBJECT_INTERFACE(Storage)                                                            \
     ADD_WINDOW_OBJECT_INTERFACE(StyleSheet)                                                         \
     ADD_WINDOW_OBJECT_INTERFACE(StyleSheetList)                                                     \
diff --git a/Userland/Libraries/LibWeb/CMakeLists.txt b/Userland/Libraries/LibWeb/CMakeLists.txt
index 7edc464803..0121a08294 100644
--- a/Userland/Libraries/LibWeb/CMakeLists.txt
+++ b/Userland/Libraries/LibWeb/CMakeLists.txt
@@ -93,6 +93,7 @@ set(SOURCES
     DOM/Range.cpp
     DOM/ShadowRoot.cpp
     DOM/StaticNodeList.cpp
+    DOM/StaticRange.cpp
     DOM/Text.cpp
     DOM/Text.idl
     DOM/Timer.cpp
@@ -434,6 +435,7 @@ libweb_js_wrapper(DOM/NodeList)
 libweb_js_wrapper(DOM/ProcessingInstruction)
 libweb_js_wrapper(DOM/Range)
 libweb_js_wrapper(DOM/ShadowRoot)
+libweb_js_wrapper(DOM/StaticRange)
 libweb_js_wrapper(DOM/Text)
 libweb_js_wrapper(Encoding/TextDecoder)
 libweb_js_wrapper(Encoding/TextEncoder)
diff --git a/Userland/Libraries/LibWeb/DOM/StaticRange.cpp b/Userland/Libraries/LibWeb/DOM/StaticRange.cpp
new file mode 100644
index 0000000000..ec5ba26200
--- /dev/null
+++ b/Userland/Libraries/LibWeb/DOM/StaticRange.cpp
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2022, Luke Wilde <lukew@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <AK/TypeCasts.h>
+#include <LibWeb/DOM/Attribute.h>
+#include <LibWeb/DOM/DocumentType.h>
+#include <LibWeb/DOM/ExceptionOr.h>
+#include <LibWeb/DOM/StaticRange.h>
+
+namespace Web::DOM {
+
+StaticRange::StaticRange(Node& start_container, u32 start_offset, Node& end_container, u32 end_offset)
+    : AbstractRange(start_container, start_offset, end_container, end_offset)
+{
+}
+
+StaticRange::~StaticRange()
+{
+}
+
+// https://dom.spec.whatwg.org/#dom-staticrange-staticrange
+ExceptionOr<NonnullRefPtr<StaticRange>> StaticRange::create_with_global_object(JS::GlobalObject&, StaticRangeInit& init)
+{
+    // 1. If init["startContainer"] or init["endContainer"] is a DocumentType or Attr node, then throw an "InvalidNodeTypeError" DOMException.
+    if (is<DocumentType>(*init.start_container) || is<Attribute>(*init.start_container))
+        return DOM::InvalidNodeTypeError::create("startContainer cannot be a DocumentType or Attribute node.");
+
+    if (is<DocumentType>(*init.end_container) || is<Attribute>(*init.end_container))
+        return DOM::InvalidNodeTypeError::create("endContainer cannot be a DocumentType or Attribute node.");
+
+    // 2. Set this’s start to (init["startContainer"], init["startOffset"]) and end to (init["endContainer"], init["endOffset"]).
+    return adopt_ref(*new StaticRange(*init.start_container, init.start_offset, *init.end_container, init.end_offset));
+}
+
+}
diff --git a/Userland/Libraries/LibWeb/DOM/StaticRange.h b/Userland/Libraries/LibWeb/DOM/StaticRange.h
new file mode 100644
index 0000000000..9e99d0c0d1
--- /dev/null
+++ b/Userland/Libraries/LibWeb/DOM/StaticRange.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2022, Luke Wilde <lukew@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibWeb/DOM/AbstractRange.h>
+
+namespace Web::DOM {
+
+// NOTE: We must use RP instead of NNRP here, otherwise the generated code cannot default initialize this struct.
+//       They will never be null, as they are marked as required and non-null in the dictionary.
+struct StaticRangeInit {
+    RefPtr<Node> start_container;
+    u32 start_offset { 0 };
+    RefPtr<Node> end_container;
+    u32 end_offset { 0 };
+};
+
+class StaticRange final : public AbstractRange {
+public:
+    using WrapperType = Bindings::StaticRangeWrapper;
+
+    virtual ~StaticRange() override;
+
+    static ExceptionOr<NonnullRefPtr<StaticRange>> create_with_global_object(JS::GlobalObject&, StaticRangeInit& init);
+
+private:
+    StaticRange(Node& start_container, u32 start_offset, Node& end_container, u32 end_offset);
+};
+
+}
diff --git a/Userland/Libraries/LibWeb/DOM/StaticRange.idl b/Userland/Libraries/LibWeb/DOM/StaticRange.idl
new file mode 100644
index 0000000000..cc3b747f29
--- /dev/null
+++ b/Userland/Libraries/LibWeb/DOM/StaticRange.idl
@@ -0,0 +1,14 @@
+#import <DOM/Node.idl>
+#import <DOM/AbstractRange.idl>
+
+[Exposed=Window]
+interface StaticRange : AbstractRange {
+    constructor(StaticRangeInit init);
+};
+
+dictionary StaticRangeInit {
+    required Node startContainer;
+    required unsigned long startOffset;
+    required Node endContainer;
+    required unsigned long endOffset;
+};
diff --git a/Userland/Libraries/LibWeb/Forward.h b/Userland/Libraries/LibWeb/Forward.h
index 8c1d0bfbd4..49aa38a112 100644
--- a/Userland/Libraries/LibWeb/Forward.h
+++ b/Userland/Libraries/LibWeb/Forward.h
@@ -117,6 +117,7 @@ class ProcessingInstruction;
 class Range;
 class ShadowRoot;
 class StaticNodeList;
+class StaticRange;
 class Text;
 class Timer;
 class Window;
@@ -481,6 +482,7 @@ class RangeWrapper;
 class ResizeObserverWrapper;
 class ScreenWrapper;
 class SelectionWrapper;
+class StaticRangeWrapper;
 class StorageWrapper;
 class StyleSheetListWrapper;
 class StyleSheetWrapper;