1 files changed, 77 insertions, 0 deletions
diff --git a/dom/html/HTMLBRElement.cpp b/dom/html/HTMLBRElement.cpp
new file mode 100644
index 0000000000..dd930f81cb
--- /dev/null
+++ b/dom/html/HTMLBRElement.cpp
@@ -0,0 +1,77 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/dom/HTMLBRElement.h"
+#include "mozilla/dom/HTMLBRElementBinding.h"
+#include "mozilla/MappedDeclarations.h"
+#include "nsAttrValueInlines.h"
+#include "nsStyleConsts.h"
+#include "nsMappedAttributes.h"
+
+NS_IMPL_NS_NEW_HTML_ELEMENT(BR)
+
+namespace mozilla::dom {
+
+HTMLBRElement::HTMLBRElement(
+    already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
+    : nsGenericHTMLElement(std::move(aNodeInfo)) {}
+
+HTMLBRElement::~HTMLBRElement() = default;
+
+NS_IMPL_ELEMENT_CLONE(HTMLBRElement)
+
+static const nsAttrValue::EnumTable kClearTable[] = {
+    {"left", StyleClear::Left},
+    {"right", StyleClear::Right},
+    {"all", StyleClear::Both},
+    {"both", StyleClear::Both},
+    {nullptr, 0}};
+
+bool HTMLBRElement::ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
+                                   const nsAString& aValue,
+                                   nsIPrincipal* aMaybeScriptedPrincipal,
+                                   nsAttrValue& aResult) {
+  if (aAttribute == nsGkAtoms::clear && aNamespaceID == kNameSpaceID_None) {
+    return aResult.ParseEnumValue(aValue, kClearTable, false);
+  }
+
+  return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
+                                              aMaybeScriptedPrincipal, aResult);
+}
+
+void HTMLBRElement::MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
+                                          MappedDeclarations& aDecls) {
+  if (!aDecls.PropertyIsSet(eCSSProperty_clear)) {
+    const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::clear);
+    if (value && value->Type() == nsAttrValue::eEnum)
+      aDecls.SetKeywordValue(eCSSProperty_clear, value->GetEnumValue());
+  }
+  nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aDecls);
+}
+
+NS_IMETHODIMP_(bool)
+HTMLBRElement::IsAttributeMapped(const nsAtom* aAttribute) const {
+  static const MappedAttributeEntry attributes[] = {{nsGkAtoms::clear},
+                                                    {nullptr}};
+
+  static const MappedAttributeEntry* const map[] = {
+      attributes,
+      sCommonAttributeMap,
+  };
+
+  return FindAttributeDependence(aAttribute, map);
+}
+
+nsMapRuleToAttributesFunc HTMLBRElement::GetAttributeMappingFunction() const {
+  return &MapAttributesIntoRule;
+}
+
+JSObject* HTMLBRElement::WrapNode(JSContext* aCx,
+                                  JS::Handle<JSObject*> aGivenProto) {
+  return HTMLBRElement_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+}  // namespace mozilla::dom