1 files changed, 150 insertions, 0 deletions
diff --git a/dom/html/HTMLFieldSetElement.h b/dom/html/HTMLFieldSetElement.h
new file mode 100644
index 000000000..d169434ae
--- /dev/null
+++ b/dom/html/HTMLFieldSetElement.h
@@ -0,0 +1,150 @@
+/* -*- 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/. */
+
+#ifndef mozilla_dom_HTMLFieldSetElement_h
+#define mozilla_dom_HTMLFieldSetElement_h
+
+#include "mozilla/Attributes.h"
+#include "nsGenericHTMLElement.h"
+#include "nsIDOMHTMLFieldSetElement.h"
+#include "nsIConstraintValidation.h"
+#include "mozilla/dom/HTMLFormElement.h"
+#include "mozilla/dom/ValidityState.h"
+
+namespace mozilla {
+class EventChainPreVisitor;
+namespace dom {
+
+class HTMLFieldSetElement final : public nsGenericHTMLFormElement,
+                                  public nsIDOMHTMLFieldSetElement,
+                                  public nsIConstraintValidation
+{
+public:
+  using nsGenericHTMLFormElement::GetForm;
+  using nsIConstraintValidation::Validity;
+  using nsIConstraintValidation::CheckValidity;
+  using nsIConstraintValidation::ReportValidity;
+  using nsIConstraintValidation::GetValidationMessage;
+
+  explicit HTMLFieldSetElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo);
+
+  NS_IMPL_FROMCONTENT_HTML_WITH_TAG(HTMLFieldSetElement, fieldset)
+
+  // nsISupports
+  NS_DECL_ISUPPORTS_INHERITED
+
+  // nsIDOMHTMLFieldSetElement
+  NS_DECL_NSIDOMHTMLFIELDSETELEMENT
+
+  // nsIContent
+  virtual nsresult PreHandleEvent(EventChainPreVisitor& aVisitor) override;
+  virtual nsresult AfterSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
+                                const nsAttrValue* aValue, bool aNotify) override;
+
+  virtual nsresult InsertChildAt(nsIContent* aChild, uint32_t aIndex,
+                                     bool aNotify) override;
+  virtual void RemoveChildAt(uint32_t aIndex, bool aNotify) override;
+
+  // nsIFormControl
+  NS_IMETHOD_(uint32_t) GetType() const override { return NS_FORM_FIELDSET; }
+  NS_IMETHOD Reset() override;
+  NS_IMETHOD SubmitNamesValues(HTMLFormSubmission* aFormSubmission) override;
+  virtual bool IsDisabledForEvents(EventMessage aMessage) override;
+  virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult) const override;
+
+  const nsIContent* GetFirstLegend() const { return mFirstLegend; }
+
+  void AddElement(nsGenericHTMLFormElement* aElement);
+
+  void RemoveElement(nsGenericHTMLFormElement* aElement);
+
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(HTMLFieldSetElement,
+                                           nsGenericHTMLFormElement)
+
+  // WebIDL
+  bool Disabled() const
+  {
+    return GetBoolAttr(nsGkAtoms::disabled);
+  }
+  void SetDisabled(bool aValue, ErrorResult& aRv)
+  {
+    SetHTMLBoolAttr(nsGkAtoms::disabled, aValue, aRv);
+  }
+
+  // XPCOM GetName is OK for us
+
+  void SetName(const nsAString& aValue, ErrorResult& aRv)
+  {
+    SetHTMLAttr(nsGkAtoms::name, aValue, aRv);
+  }
+
+  // XPCOM GetType is OK for us
+
+  nsIHTMLCollection* Elements();
+
+  // XPCOM WillValidate is OK for us
+
+  // XPCOM Validity is OK for us
+
+  // XPCOM GetValidationMessage is OK for us
+
+  // XPCOM CheckValidity is OK for us
+
+  // XPCOM SetCustomValidity is OK for us
+
+  virtual EventStates IntrinsicState() const override;
+
+
+  /*
+   * This method will update the fieldset's validity.  This method has to be
+   * called by fieldset elements whenever their validity state or status regarding
+   * constraint validation changes.
+   *
+   * @note If an element becomes barred from constraint validation, it has to
+   * be considered as valid.
+   *
+   * @param aElementValidityState the new validity state of the element
+   */
+  void UpdateValidity(bool aElementValidityState);
+
+protected:
+  virtual ~HTMLFieldSetElement();
+
+  virtual JSObject* WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
+
+private:
+
+  /**
+   * Notify all elements (in mElements) that the first legend of the fieldset
+   * has now changed.
+   */
+  void NotifyElementsForFirstLegendChange(bool aNotify);
+
+  // This function is used to generate the nsContentList (listed form elements).
+  static bool MatchListedElements(nsIContent* aContent, int32_t aNamespaceID,
+                                    nsIAtom* aAtom, void* aData);
+
+  // listed form controls elements.
+  RefPtr<nsContentList> mElements;
+
+  // List of elements which have this fieldset as first fieldset ancestor.
+  nsTArray<nsGenericHTMLFormElement*> mDependentElements;
+
+  nsIContent* mFirstLegend;
+
+  /**
+   * Number of invalid and candidate for constraint validation
+   * elements in the fieldSet the last time UpdateValidity has been called.
+   *
+   * @note Should only be used by UpdateValidity() and IntrinsicState()!
+   */
+  int32_t mInvalidElementsCount;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif /* mozilla_dom_HTMLFieldSetElement_h */