LibWeb: Implement StaticRange

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));
+}
+
+}

Userland/Libraries/LibWeb/DOM/StaticRange.h

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+/*
+ * 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);
+};
+
+}

Userland/Libraries/LibWeb/DOM/StaticRange.idl

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+#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;
+};