Quelle HTMLObjectElement.h Sprache: C

/* -*- 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_HTMLObjectElement_h
#define mozilla_dom_HTMLObjectElement_h

#include "mozilla/Attributes.h"
#include "mozilla/dom/ConstraintValidation.h"
#include "nsGenericHTMLElement.h"
#include "nsObjectLoadingContent.h"

namespace mozilla::dom {

class FormData;
template <typename T>
struct Nullable;
class WindowProxyHolder;

class HTMLObjectElement final : public nsGenericHTMLFormControlElement,
                                public nsObjectLoadingContent,
                                public ConstraintValidation {
public:
  explicit HTMLObjectElement(
      already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
      FromParser aFromParser = NOT_FROM_PARSER);

  // nsISupports
  NS_DECL_ISUPPORTS_INHERITED

  NS_IMPL_FROMNODE_HTML_WITH_TAG(HTMLObjectElement, object)
  int32_t TabIndexDefault() override;

  // nsObjectLoadingContent
  const Element* AsElement() const final { return this; }

  // Element
  bool IsInteractiveHTMLContent() const override;

  nsresult BindToTree(BindContext&, nsINode& aParent) override;
  void UnbindFromTree(UnbindContext&) override;

  bool IsHTMLFocusable(IsFocusableFlags, bool* aIsFocusable,
                       int32_t* aTabIndex) override;

  // Overriden nsIFormControl methods
  NS_IMETHOD Reset() override { return NS_OK; }

  NS_IMETHOD SubmitNamesValues(FormData* aFormData) override { return NS_OK; }

  void DoneAddingChildren(bool aHaveNotified) override;

  bool ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
                      const nsAString& aValue,
                      nsIPrincipal* aMaybeScriptedPrincipal,
                      nsAttrValue& aResult) override;
  nsMapRuleToAttributesFunc GetAttributeMappingFunction() const override;
  NS_IMETHOD_(bool) IsAttributeMapped(const nsAtom* aAttribute) const override;
  void DestroyContent() override;

  // nsObjectLoadingContent
  uint32_t GetCapabilities() const override;
  nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;

  nsresult CopyInnerTo(Element* aDest);

  void StartObjectLoad() { StartObjectLoad(true, false); }

  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(HTMLObjectElement,
                                           nsGenericHTMLFormControlElement)

  // Web IDL binding methods
  void GetData(DOMString& aValue) {
    GetURIAttr(nsGkAtoms::data, nsGkAtoms::codebase, aValue);
  }
  void SetData(const nsAString& aValue, ErrorResult& aRv) {
    SetHTMLAttr(nsGkAtoms::data, aValue, aRv);
  }
  void GetType(DOMString& aValue) { GetHTMLAttr(nsGkAtoms::type, aValue); }
  void SetType(const nsAString& aValue, ErrorResult& aRv) {
    SetHTMLAttr(nsGkAtoms::type, aValue, aRv);
  }
  void GetName(DOMString& aValue) { GetHTMLAttr(nsGkAtoms::name, aValue); }
  void SetName(const nsAString& aValue, ErrorResult& aRv) {
    SetHTMLAttr(nsGkAtoms::name, aValue, aRv);
  }
  void GetUseMap(DOMString& aValue) { GetHTMLAttr(nsGkAtoms::usemap, aValue); }
  void SetUseMap(const nsAString& aValue, ErrorResult& aRv) {
    SetHTMLAttr(nsGkAtoms::usemap, aValue, aRv);
  }
  void GetWidth(DOMString& aValue) { GetHTMLAttr(nsGkAtoms::width, aValue); }
  void SetWidth(const nsAString& aValue, ErrorResult& aRv) {
    SetHTMLAttr(nsGkAtoms::width, aValue, aRv);
  }
  void GetHeight(DOMString& aValue) { GetHTMLAttr(nsGkAtoms::height, aValue); }
  void SetHeight(const nsAString& aValue, ErrorResult& aRv) {
    SetHTMLAttr(nsGkAtoms::height, aValue, aRv);
  }
  using nsObjectLoadingContent::GetContentDocument;

  Nullable<WindowProxyHolder> GetContentWindow(nsIPrincipal& aSubjectPrincipal);

  using ConstraintValidation::GetValidationMessage;
  using ConstraintValidation::SetCustomValidity;
  void GetAlign(DOMString& aValue) { GetHTMLAttr(nsGkAtoms::align, aValue); }
  void SetAlign(const nsAString& aValue, ErrorResult& aRv) {
    SetHTMLAttr(nsGkAtoms::align, aValue, aRv);
  }
  void GetArchive(DOMString& aValue) {
    GetHTMLAttr(nsGkAtoms::archive, aValue);
  }
  void SetArchive(const nsAString& aValue, ErrorResult& aRv) {
    SetHTMLAttr(nsGkAtoms::archive, aValue, aRv);
  }
  void GetCode(DOMString& aValue) { GetHTMLAttr(nsGkAtoms::code, aValue); }
  void SetCode(const nsAString& aValue, ErrorResult& aRv) {
    SetHTMLAttr(nsGkAtoms::code, aValue, aRv);
  }
  bool Declare() { return GetBoolAttr(nsGkAtoms::declare); }
  void SetDeclare(bool aValue, ErrorResult& aRv) {
    SetHTMLBoolAttr(nsGkAtoms::declare, aValue, aRv);
  }
  uint32_t Hspace() {
    return GetDimensionAttrAsUnsignedInt(nsGkAtoms::hspace, 0);
  }
  void SetHspace(uint32_t aValue, ErrorResult& aRv) {
    SetUnsignedIntAttr(nsGkAtoms::hspace, aValue, 0, aRv);
  }
  void GetStandby(DOMString& aValue) {
    GetHTMLAttr(nsGkAtoms::standby, aValue);
  }
  void SetStandby(const nsAString& aValue, ErrorResult& aRv) {
    SetHTMLAttr(nsGkAtoms::standby, aValue, aRv);
  }
  uint32_t Vspace() {
    return GetDimensionAttrAsUnsignedInt(nsGkAtoms::vspace, 0);
  }
  void SetVspace(uint32_t aValue, ErrorResult& aRv) {
    SetUnsignedIntAttr(nsGkAtoms::vspace, aValue, 0, aRv);
  }
  void GetCodeBase(DOMString& aValue) {
    GetURIAttr(nsGkAtoms::codebase, nullptr, aValue);
  }
  void SetCodeBase(const nsAString& aValue, ErrorResult& aRv) {
    SetHTMLAttr(nsGkAtoms::codebase, aValue, aRv);
  }
  void GetCodeType(DOMString& aValue) {
    GetHTMLAttr(nsGkAtoms::codetype, aValue);
  }
  void SetCodeType(const nsAString& aValue, ErrorResult& aRv) {
    SetHTMLAttr(nsGkAtoms::codetype, aValue, aRv);
  }
  void GetBorder(DOMString& aValue) { GetHTMLAttr(nsGkAtoms::border, aValue); }
  void SetBorder(const nsAString& aValue, ErrorResult& aRv) {
    SetHTMLAttr(nsGkAtoms::border, aValue, aRv);
  }

  Document* GetSVGDocument(nsIPrincipal& aSubjectPrincipal) {
    return GetContentDocument(aSubjectPrincipal);
  }

  /**
   * Calls LoadObject with the correct arguments to start the plugin load.
   */
  void StartObjectLoad(bool aNotify, bool aForceLoad);

protected:
  void AfterSetAttr(int32_t aNamespaceID, nsAtom* aName,
                    const nsAttrValue* aValue, const nsAttrValue* aOldValue,
                    nsIPrincipal* aSubjectPrincipal, bool aNotify) override;
  void OnAttrSetButNotChanged(int32_t aNamespaceID, nsAtom* aName,
                              const nsAttrValueOrString& aValue,
                              bool aNotify) override;

private:
  nsContentPolicyType GetContentPolicyType() const override {
    return nsIContentPolicy::TYPE_INTERNAL_OBJECT;
  }

  virtual ~HTMLObjectElement();

  JSObject* WrapNode(JSContext* aCx,
                     JS::Handle<JSObject*> aGivenProto) override;

  static void MapAttributesIntoRule(MappedDeclarationsBuilder&);

  /**
   * This function is called by AfterSetAttr and OnAttrSetButNotChanged.
   * This function will be called by AfterSetAttr whether the attribute is being
   * set or unset.
   *
   * @param aNamespaceID the namespace of the attr being set
   * @param aName the localname of the attribute being set
   * @param aNotify Whether we plan to notify document observers.
   */
  void AfterMaybeChangeAttr(int32_t aNamespaceID, nsAtom* aName, bool aNotify);

  bool mIsDoneAddingChildren;
};

}  // namespace mozilla::dom

#endif  // mozilla_dom_HTMLObjectElement_h

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