1 files changed, 146 insertions, 0 deletions
diff --git a/dom/html/HTMLOptGroupElement.cpp b/dom/html/HTMLOptGroupElement.cpp
new file mode 100644
index 000000000..8a044fbf3
--- /dev/null
+++ b/dom/html/HTMLOptGroupElement.cpp
@@ -0,0 +1,146 @@
+/* -*- 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/EventDispatcher.h"
+#include "mozilla/EventStates.h"
+#include "mozilla/dom/HTMLOptGroupElement.h"
+#include "mozilla/dom/HTMLOptGroupElementBinding.h"
+#include "mozilla/dom/HTMLSelectElement.h" // SafeOptionListMutation
+#include "nsGkAtoms.h"
+#include "nsStyleConsts.h"
+#include "nsIFrame.h"
+#include "nsIFormControlFrame.h"
+
+NS_IMPL_NS_NEW_HTML_ELEMENT(OptGroup)
+
+namespace mozilla {
+namespace dom {
+
+/**
+ * The implementation of &lt;optgroup&gt;
+ */
+
+
+
+HTMLOptGroupElement::HTMLOptGroupElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
+  : nsGenericHTMLElement(aNodeInfo)
+{
+  // We start off enabled
+  AddStatesSilently(NS_EVENT_STATE_ENABLED);
+}
+
+HTMLOptGroupElement::~HTMLOptGroupElement()
+{
+}
+
+
+NS_IMPL_ISUPPORTS_INHERITED(HTMLOptGroupElement, nsGenericHTMLElement,
+                            nsIDOMHTMLOptGroupElement)
+
+NS_IMPL_ELEMENT_CLONE(HTMLOptGroupElement)
+
+
+NS_IMPL_BOOL_ATTR(HTMLOptGroupElement, Disabled, disabled)
+NS_IMPL_STRING_ATTR(HTMLOptGroupElement, Label, label)
+
+
+nsresult
+HTMLOptGroupElement::PreHandleEvent(EventChainPreVisitor& aVisitor)
+{
+  aVisitor.mCanHandle = false;
+  // Do not process any DOM events if the element is disabled
+  // XXXsmaug This is not the right thing to do. But what is?
+  if (HasAttr(kNameSpaceID_None, nsGkAtoms::disabled)) {
+    return NS_OK;
+  }
+
+  nsIFrame* frame = GetPrimaryFrame();
+  if (frame) {
+    const nsStyleUserInterface* uiStyle = frame->StyleUserInterface();
+    if (uiStyle->mUserInput == StyleUserInput::None ||
+        uiStyle->mUserInput == StyleUserInput::Disabled) {
+      return NS_OK;
+    }
+  }
+
+  return nsGenericHTMLElement::PreHandleEvent(aVisitor);
+}
+
+Element*
+HTMLOptGroupElement::GetSelect()
+{
+  Element* parent = nsINode::GetParentElement();
+  if (!parent || !parent->IsHTMLElement(nsGkAtoms::select)) {
+    return nullptr;
+  }
+  return parent;
+}
+
+nsresult
+HTMLOptGroupElement::InsertChildAt(nsIContent* aKid,
+                                   uint32_t aIndex,
+                                   bool aNotify)
+{
+  SafeOptionListMutation safeMutation(GetSelect(), this, aKid, aIndex, aNotify);
+  nsresult rv = nsGenericHTMLElement::InsertChildAt(aKid, aIndex, aNotify);
+  if (NS_FAILED(rv)) {
+    safeMutation.MutationFailed();
+  }
+  return rv;
+}
+
+void
+HTMLOptGroupElement::RemoveChildAt(uint32_t aIndex, bool aNotify)
+{
+  SafeOptionListMutation safeMutation(GetSelect(), this, nullptr, aIndex,
+                                      aNotify);
+  nsGenericHTMLElement::RemoveChildAt(aIndex, aNotify);
+}
+
+nsresult
+HTMLOptGroupElement::AfterSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
+                                  const nsAttrValue* aValue, bool aNotify)
+{
+  if (aNameSpaceID == kNameSpaceID_None && aName == nsGkAtoms::disabled) {
+    // All our children <option> have their :disabled state depending on our
+    // disabled attribute. We should make sure their state is updated.
+    for (nsIContent* child = nsINode::GetFirstChild(); child;
+         child = child->GetNextSibling()) {
+      if (child->IsHTMLElement(nsGkAtoms::option)) {
+        // No need to call |IsElement()| because it's an HTML element.
+        child->AsElement()->UpdateState(true);
+      }
+    }
+  }
+
+  return nsGenericHTMLElement::AfterSetAttr(aNameSpaceID, aName, aValue,
+                                            aNotify);
+}
+
+EventStates
+HTMLOptGroupElement::IntrinsicState() const
+{
+  EventStates state = nsGenericHTMLElement::IntrinsicState();
+
+  if (HasAttr(kNameSpaceID_None, nsGkAtoms::disabled)) {
+    state |= NS_EVENT_STATE_DISABLED;
+    state &= ~NS_EVENT_STATE_ENABLED;
+  } else {
+    state &= ~NS_EVENT_STATE_DISABLED;
+    state |= NS_EVENT_STATE_ENABLED;
+  }
+
+  return state;
+}
+
+JSObject*
+HTMLOptGroupElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+  return HTMLOptGroupElementBinding::Wrap(aCx, this, aGivenProto);
+}
+
+} // namespace dom
+} // namespace mozilla