1 files changed, 103 insertions, 0 deletions
diff --git a/dom/html/HTMLTableColElement.cpp b/dom/html/HTMLTableColElement.cpp
new file mode 100644
index 0000000000..5c2221f3d6
--- /dev/null
+++ b/dom/html/HTMLTableColElement.cpp
@@ -0,0 +1,103 @@
+/* -*- 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/HTMLTableColElement.h"
+#include "mozilla/dom/HTMLTableColElementBinding.h"
+#include "nsMappedAttributes.h"
+#include "nsAttrValueInlines.h"
+#include "mozilla/MappedDeclarations.h"
+
+NS_IMPL_NS_NEW_HTML_ELEMENT(TableCol)
+
+namespace mozilla::dom {
+
+// use the same protection as ancient code did
+// http://lxr.mozilla.org/classic/source/lib/layout/laytable.c#46
+#define MAX_COLSPAN 1000
+
+HTMLTableColElement::~HTMLTableColElement() = default;
+
+JSObject* HTMLTableColElement::WrapNode(JSContext* aCx,
+                                        JS::Handle<JSObject*> aGivenProto) {
+  return HTMLTableColElement_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+NS_IMPL_ELEMENT_CLONE(HTMLTableColElement)
+
+bool HTMLTableColElement::ParseAttribute(int32_t aNamespaceID,
+                                         nsAtom* aAttribute,
+                                         const nsAString& aValue,
+                                         nsIPrincipal* aMaybeScriptedPrincipal,
+                                         nsAttrValue& aResult) {
+  if (aNamespaceID == kNameSpaceID_None) {
+    /* ignore these attributes, stored simply as strings ch */
+    if (aAttribute == nsGkAtoms::span) {
+      /* protection from unrealistic large colspan values */
+      aResult.ParseClampedNonNegativeInt(aValue, 1, 1, MAX_COLSPAN);
+      return true;
+    }
+    if (aAttribute == nsGkAtoms::width) {
+      // Spec says to use ParseNonzeroHTMLDimension, but Chrome and Safari both
+      // allow 0, and we did all along too, so keep that behavior.  See
+      // https://github.com/whatwg/html/issues/4717
+      return aResult.ParseHTMLDimension(aValue);
+    }
+    if (aAttribute == nsGkAtoms::align) {
+      return ParseTableCellHAlignValue(aValue, aResult);
+    }
+    if (aAttribute == nsGkAtoms::valign) {
+      return ParseTableVAlignValue(aValue, aResult);
+    }
+  }
+
+  return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
+                                              aMaybeScriptedPrincipal, aResult);
+}
+
+void HTMLTableColElement::MapAttributesIntoRule(
+    const nsMappedAttributes* aAttributes, MappedDeclarations& aDecls) {
+  if (!aDecls.PropertyIsSet(eCSSProperty__x_span)) {
+    // span: int
+    const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::span);
+    if (value && value->Type() == nsAttrValue::eInteger) {
+      int32_t val = value->GetIntegerValue();
+      // Note: Do NOT use this code for table cells!  The value "0"
+      // means something special for colspan and rowspan, but for <col
+      // span> and <colgroup span> it's just disallowed.
+      if (val > 0) {
+        aDecls.SetIntValue(eCSSProperty__x_span, value->GetIntegerValue());
+      }
+    }
+  }
+
+  nsGenericHTMLElement::MapWidthAttributeInto(aAttributes, aDecls);
+  nsGenericHTMLElement::MapDivAlignAttributeInto(aAttributes, aDecls);
+  nsGenericHTMLElement::MapVAlignAttributeInto(aAttributes, aDecls);
+  nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aDecls);
+}
+
+NS_IMETHODIMP_(bool)
+HTMLTableColElement::IsAttributeMapped(const nsAtom* aAttribute) const {
+  static const MappedAttributeEntry attributes[] = {{nsGkAtoms::width},
+                                                    {nsGkAtoms::align},
+                                                    {nsGkAtoms::valign},
+                                                    {nsGkAtoms::span},
+                                                    {nullptr}};
+
+  static const MappedAttributeEntry* const map[] = {
+      attributes,
+      sCommonAttributeMap,
+  };
+
+  return FindAttributeDependence(aAttribute, map);
+}
+
+nsMapRuleToAttributesFunc HTMLTableColElement::GetAttributeMappingFunction()
+    const {
+  return &MapAttributesIntoRule;
+}
+
+}  // namespace mozilla::dom