dom/html/HTMLOutputElement.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_HTMLOutputElement_h
   8 #define mozilla_dom_HTMLOutputElement_h
   9
  10 #include "mozilla/Attributes.h"
  11 #include "nsGenericHTMLElement.h"
  12 #include "nsStubMutationObserver.h"
  13 #include "nsIConstraintValidation.h"
  14
  15 namespace mozilla {
  16 namespace dom {
  17
  18 class FormData;
  19
  20 class HTMLOutputElement final : public nsGenericHTMLFormControlElement,
  21                                 public nsStubMutationObserver,
  22                                 public nsIConstraintValidation {
  23  public:
  24   using nsIConstraintValidation::GetValidationMessage;
  25
  26   explicit HTMLOutputElement(
  27       already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
  28       FromParser aFromParser = NOT_FROM_PARSER);
  29
  30   // nsISupports
  31   NS_DECL_ISUPPORTS_INHERITED
  32
  33   // nsIFormControl
  34   NS_IMETHOD Reset() override;
  35   // The output element is not submittable.
  36   NS_IMETHOD SubmitNamesValues(FormData* aFormData) override { return NS_OK; }
  37
  38   nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;
  39
  40   virtual bool ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
  41                               const nsAString& aValue,
  42                               nsIPrincipal* aMaybeScriptedPrincipal,
  43                               nsAttrValue& aResult) override;
  44
  45   virtual void DoneAddingChildren(bool aHaveNotified) override;
  46
  47   EventStates IntrinsicState() const override;
  48
  49   virtual nsresult BindToTree(BindContext&, nsINode& aParent) override;
  50
  51   // This function is called when a callback function from nsIMutationObserver
  52   // has to be used to update the defaultValue attribute.
  53   void DescendantsChanged();
  54
  55   // nsIMutationObserver
  56   NS_DECL_NSIMUTATIONOBSERVER_CHARACTERDATACHANGED
  57   NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED
  58   NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED
  59   NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED
  60
  61   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(HTMLOutputElement,
  62                                            nsGenericHTMLFormControlElement)
  63
  64   virtual JSObject* WrapNode(JSContext* aCx,
  65                              JS::Handle<JSObject*> aGivenProto) override;
  66
  67   // WebIDL
  68   nsDOMTokenList* HtmlFor();
  69
  70   void GetName(nsAString& aName) { GetHTMLAttr(nsGkAtoms::name, aName); }
  71
  72   void SetName(const nsAString& aName, ErrorResult& aRv) {
  73     SetHTMLAttr(nsGkAtoms::name, aName, aRv);
  74   }
  75
  76   void GetType(nsAString& aType) { aType.AssignLiteral("output"); }
  77
  78   void GetDefaultValue(nsAString& aDefaultValue) {
  79     aDefaultValue = mDefaultValue;
  80   }
  81
  82   void SetDefaultValue(const nsAString& aDefaultValue, ErrorResult& aRv);
  83
  84   void GetValue(nsAString& aValue);
  85   void SetValue(const nsAString& aValue, ErrorResult& aRv);
  86
  87   // nsIConstraintValidation::WillValidate is fine.
  88   // nsIConstraintValidation::Validity() is fine.
  89   // nsIConstraintValidation::GetValidationMessage() is fine.
  90   // nsIConstraintValidation::CheckValidity() is fine.
  91   void SetCustomValidity(const nsAString& aError);
  92
  93  protected:
  94   virtual ~HTMLOutputElement();
  95
  96   enum ValueModeFlag { eModeDefault, eModeValue };
  97
  98   ValueModeFlag mValueModeFlag;
  99   bool mIsDoneAddingChildren;
 100   nsString mDefaultValue;
 101   RefPtr<nsDOMTokenList> mTokenList;
 102 };
 103
 104 }  // namespace dom
 105 }  // namespace mozilla
 106
 107 #endif  // mozilla_dom_HTMLOutputElement_h