dom/xml/XMLStylesheetProcessingInstruction.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_XMLStylesheetProcessingInstruction_h
   8 #define mozilla_dom_XMLStylesheetProcessingInstruction_h
   9
  10 #include "mozilla/Attributes.h"
  11 #include "mozilla/Unused.h"
  12 #include "mozilla/dom/LinkStyle.h"
  13 #include "mozilla/dom/ProcessingInstruction.h"
  14 #include "nsIURI.h"
  15
  16 namespace mozilla {
  17 namespace dom {
  18
  19 class XMLStylesheetProcessingInstruction final : public ProcessingInstruction,
  20                                                  public LinkStyle {
  21  public:
  22   XMLStylesheetProcessingInstruction(
  23       already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
  24       const nsAString& aData)
  25       : ProcessingInstruction(std::move(aNodeInfo), aData) {}
  26
  27   XMLStylesheetProcessingInstruction(nsNodeInfoManager* aNodeInfoManager,
  28                                      const nsAString& aData)
  29       : ProcessingInstruction(
  30             aNodeInfoManager->GetNodeInfo(
  31                 nsGkAtoms::processingInstructionTagName, nullptr,
  32                 kNameSpaceID_None, PROCESSING_INSTRUCTION_NODE,
  33                 nsGkAtoms::xml_stylesheet),
  34             aData) {}
  35
  36   // CC
  37   NS_DECL_ISUPPORTS_INHERITED
  38   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(XMLStylesheetProcessingInstruction,
  39                                            ProcessingInstruction)
  40
  41   // nsINode
  42   virtual void SetNodeValueInternal(const nsAString& aNodeValue,
  43                                     mozilla::ErrorResult& aError) override;
  44
  45   // nsIContent
  46   virtual nsresult BindToTree(BindContext&, nsINode& aParent) override;
  47   virtual void UnbindFromTree(bool aNullParent = true) override;
  48
  49   /**
  50    * Tells this processing instruction to use a different base URI. This is used
  51    * for proper loading of xml-stylesheet processing instructions in XUL
  52    * overlays and is only currently used by nsXMLStylesheetPI.
  53    *
  54    * @param aNewBaseURI the new base URI, nullptr to use the default base URI.
  55    */
  56   void OverrideBaseURI(nsIURI* aNewBaseURI);
  57
  58   // LinkStyle
  59   void GetCharset(nsAString& aCharset) override;
  60
  61   virtual void SetData(const nsAString& aData,
  62                        mozilla::ErrorResult& rv) override {
  63     CharacterData::SetData(aData, rv);
  64     if (rv.Failed()) {
  65       return;
  66     }
  67     Unused << UpdateStyleSheetInternal(nullptr, nullptr, ForceUpdate::Yes);
  68   }
  69
  70  protected:
  71   virtual ~XMLStylesheetProcessingInstruction();
  72
  73   nsCOMPtr<nsIURI> mOverriddenBaseURI;
  74
  75   nsIContent& AsContent() final { return *this; }
  76   const LinkStyle* AsLinkStyle() const final { return this; }
  77   Maybe<SheetInfo> GetStyleSheetInfo() final;
  78
  79   already_AddRefed<CharacterData> CloneDataNode(
  80       mozilla::dom::NodeInfo* aNodeInfo, bool aCloneText) const final;
  81 };
  82
  83 }  // namespace dom
  84 }  // namespace mozilla
  85
  86 #endif  // mozilla_dom_XMLStylesheetProcessingInstruction_h