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+/* -*- 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 */