tor-browser

The Tor Browser
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SVGStyleElement.h (3474B)

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