dom/svg/SVGStyleElement.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_SVGStyleElement_h
   8 #define mozilla_dom_SVGStyleElement_h
   9
  10 #include "mozilla/Attributes.h"
  11 #include "nsSVGElement.h"
  12 #include "nsStyleLinkElement.h"
  13 #include "nsStubMutationObserver.h"
  14
  15 nsresult NS_NewSVGStyleElement(nsIContent **aResult,
  16                                already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
  17
  18 typedef nsSVGElement SVGStyleElementBase;
  19
  20 namespace mozilla {
  21 namespace dom {
  22
  23 class SVGStyleElement final : public SVGStyleElementBase,
  24                               public nsStyleLinkElement,
  25                               public nsStubMutationObserver
  26 {
  27 protected:
  28   friend nsresult (::NS_NewSVGStyleElement(nsIContent **aResult,
  29                                            already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo));
  30   explicit SVGStyleElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo);
  31   ~SVGStyleElement();
  32
  33   virtual JSObject* WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto) override;
  34
  35 public:
  36   NS_DECL_ISUPPORTS_INHERITED
  37
  38   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(SVGStyleElement,
  39                                            SVGStyleElementBase)
  40
  41   // nsIContent
  42   virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
  43                               nsIContent* aBindingParent,
  44                               bool aCompileEventHandlers) override;
  45   virtual void UnbindFromTree(bool aDeep = true,
  46                               bool aNullParent = true) override;
  47   virtual nsresult AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName,
  48                                 const nsAttrValue* aValue,
  49                                 const nsAttrValue* aOldValue,
  50                                 nsIPrincipal* aMaybeScriptedPrincipal,
  51                                 bool aNotify) override;
  52   virtual bool ParseAttribute(int32_t aNamespaceID,
  53                               nsAtom* aAttribute,
  54                               const nsAString& aValue,
  55                               nsIPrincipal* aMaybeScriptedPrincipal,
  56                               nsAttrValue& aResult) override;
  57
  58   virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult,
  59                          bool aPreallocateChildren) const override;
  60
  61   // nsIMutationObserver
  62   NS_DECL_NSIMUTATIONOBSERVER_CHARACTERDATACHANGED
  63   NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED
  64   NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED
  65   NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED
  66
  67   // WebIDL
  68   void GetXmlspace(nsAString & aXmlspace);
  69   void SetXmlspace(const nsAString & aXmlspace, ErrorResult& rv);
  70   void GetMedia(nsAString & aMedia);
  71   void SetMedia(const nsAString& aMedia, ErrorResult& rv);
  72   void GetType(nsAString & aType);
  73   void SetType(const nsAString& aType, ErrorResult& rv);
  74   void GetTitle(nsAString & aTitle);
  75   void SetTitle(const nsAString& aTitle, ErrorResult& rv);
  76
  77 protected:
  78   // Dummy init method to make the NS_IMPL_NS_NEW_SVG_ELEMENT and
  79   // NS_IMPL_ELEMENT_CLONE_WITH_INIT usable with this class. This should be
  80   // completely optimized away.
  81   inline nsresult Init()
  82   {
  83     return NS_OK;
  84   }
  85
  86   // nsStyleLinkElement overrides
  87   Maybe<SheetInfo> GetStyleSheetInfo() final;
  88
  89   /**
  90    * Common method to call from the various mutation observer methods.
  91    * aContent is a content node that's either the one that changed or its
  92    * parent; we should only respond to the change if aContent is non-anonymous.
  93    */
  94   void ContentChanged(nsIContent* aContent);
  95 };
  96
  97 } // namespace dom
  98 } // namespace mozilla
  99
 100 #endif // mozilla_dom_SVGStyleElement_h