Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 217 insertions, 0 deletions

diff --git a/dom/xml/nsXMLContentSink.h b/dom/xml/nsXMLContentSink.h
new file mode 100644
index 0000000000..41acbbc027
--- /dev/null
+++ b/dom/xml/nsXMLContentSink.h
@@ -0,0 +1,217 @@
+/* -*- 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 nsXMLContentSink_h__
+#define nsXMLContentSink_h__
+
+#include "mozilla/Attributes.h"
+#include "nsContentSink.h"
+#include "nsIXMLContentSink.h"
+#include "nsIExpatSink.h"
+#include "nsIDocumentTransformer.h"
+#include "nsTArray.h"
+#include "nsCOMPtr.h"
+#include "nsCRT.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsIDTD.h"
+#include "mozilla/dom/FromParser.h"
+
+class nsIURI;
+class nsIContent;
+class nsIParser;
+class nsTextNode;
+
+namespace mozilla::dom {
+class NodeInfo;
+class ProcessingInstruction;
+}  // namespace mozilla::dom
+
+enum XMLContentSinkState {
+  eXMLContentSinkState_InProlog,
+  eXMLContentSinkState_InDocumentElement,
+  eXMLContentSinkState_InEpilog
+};
+
+class nsXMLContentSink : public nsContentSink,
+                         public nsIXMLContentSink,
+                         public nsITransformObserver,
+                         public nsIExpatSink {
+ public:
+  struct StackNode {
+    nsCOMPtr<nsIContent> mContent;
+    uint32_t mNumFlushed;
+  };
+
+  nsXMLContentSink();
+
+  nsresult Init(mozilla::dom::Document* aDoc, nsIURI* aURL,
+                nsISupports* aContainer, nsIChannel* aChannel);
+
+  // nsISupports
+  NS_DECL_ISUPPORTS_INHERITED
+
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsXMLContentSink, nsContentSink)
+
+  NS_DECL_NSIEXPATSINK
+
+  // nsIContentSink
+  NS_IMETHOD WillParse(void) override;
+  NS_IMETHOD WillBuildModel(nsDTDMode aDTDMode) override;
+  NS_IMETHOD DidBuildModel(bool aTerminated) override;
+  NS_IMETHOD WillInterrupt(void) override;
+  void WillResume() override;
+  NS_IMETHOD SetParser(nsParserBase* aParser) override;
+  virtual void InitialTranslationCompleted() override;
+  virtual void FlushPendingNotifications(mozilla::FlushType aType) override;
+  virtual void SetDocumentCharset(NotNull<const Encoding*> aEncoding) override;
+  virtual nsISupports* GetTarget() override;
+  virtual bool IsScriptExecuting() override;
+  virtual void ContinueInterruptedParsingAsync() override;
+  bool IsPrettyPrintXML() const override { return mPrettyPrintXML; }
+  bool IsPrettyPrintHasSpecialRoot() const override {
+    return mPrettyPrintHasSpecialRoot;
+  }
+
+  // nsITransformObserver
+  nsresult OnDocumentCreated(mozilla::dom::Document* aSourceDocument,
+                             mozilla::dom::Document* aResultDocument) override;
+  nsresult OnTransformDone(mozilla::dom::Document* aSourceDocument,
+                           nsresult aResult,
+                           mozilla::dom::Document* aResultDocument) override;
+
+  // nsICSSLoaderObserver
+  NS_IMETHOD StyleSheetLoaded(mozilla::StyleSheet* aSheet, bool aWasDeferred,
+                              nsresult aStatus) override;
+  static bool ParsePIData(const nsString& aData, nsString& aHref,
+                          nsString& aTitle, nsString& aMedia,
+                          bool& aIsAlternate);
+
+ protected:
+  virtual ~nsXMLContentSink();
+
+  nsIParser* GetParser();
+
+  void ContinueInterruptedParsingIfEnabled();
+
+  // Start layout.  If aIgnorePendingSheets is true, this will happen even if
+  // we still have stylesheet loads pending.  Otherwise, we'll wait until the
+  // stylesheets are all done loading.
+  virtual void MaybeStartLayout(bool aIgnorePendingSheets);
+
+  virtual nsresult AddAttributes(const char16_t** aNode,
+                                 mozilla::dom::Element* aElement);
+  nsresult AddText(const char16_t* aString, int32_t aLength);
+
+  virtual bool OnOpenContainer(const char16_t** aAtts, uint32_t aAttsCount,
+                               int32_t aNameSpaceID, nsAtom* aTagName,
+                               uint32_t aLineNumber) {
+    return true;
+  }
+  // Set the given content as the root element for the created document
+  //  don't set if root element was already set.
+  //  return TRUE if this call set the root element
+  virtual bool SetDocElement(int32_t aNameSpaceID, nsAtom* aTagName,
+                             nsIContent* aContent);
+  virtual bool NotifyForDocElement() { return true; }
+  virtual nsresult CreateElement(const char16_t** aAtts, uint32_t aAttsCount,
+                                 mozilla::dom::NodeInfo* aNodeInfo,
+                                 uint32_t aLineNumber, uint32_t aColumnNumber,
+                                 nsIContent** aResult, bool* aAppendContent,
+                                 mozilla::dom::FromParser aFromParser);
+
+  // aParent is allowed to be null here if this is the root content
+  // being closed
+  virtual nsresult CloseElement(nsIContent* aContent);
+
+  virtual nsresult FlushText(bool aReleaseTextNode = true);
+
+  nsresult AddContentAsLeaf(nsIContent* aContent);
+
+  nsIContent* GetCurrentContent();
+  StackNode* GetCurrentStackNode();
+  nsresult PushContent(nsIContent* aContent);
+  void PopContent();
+  bool HaveNotifiedForCurrentContent() const;
+
+  nsresult FlushTags() override;
+
+  void UpdateChildCounts() override;
+
+  void DidAddContent() {
+    if (!mXSLTProcessor && IsTimeToNotify()) {
+      FlushTags();
+    }
+  }
+
+  // nsContentSink override
+  virtual nsresult ProcessStyleLinkFromHeader(
+      const nsAString& aHref, bool aAlternate, const nsAString& aTitle,
+      const nsAString& aIntegrity, const nsAString& aType,
+      const nsAString& aMedia, const nsAString& aReferrerPolicy) override;
+
+  // Try to handle an XSLT style link.  If NS_OK is returned and aWasXSLT is not
+  // null, *aWasXSLT will be set to whether we processed this link as XSLT.
+  //
+  // aProcessingInstruction can be null if this information comes from a Link
+  // header; otherwise it will be the xml-styleshset XML PI that the loading
+  // information comes from.
+  virtual nsresult MaybeProcessXSLTLink(
+      mozilla::dom::ProcessingInstruction* aProcessingInstruction,
+      const nsAString& aHref, bool aAlternate, const nsAString& aTitle,
+      const nsAString& aType, const nsAString& aMedia,
+      const nsAString& aReferrerPolicy, bool* aWasXSLT = nullptr);
+
+  nsresult LoadXSLStyleSheet(nsIURI* aUrl);
+
+  bool CanStillPrettyPrint();
+
+  nsresult MaybePrettyPrint();
+
+  bool IsMonolithicContainer(mozilla::dom::NodeInfo* aNodeInfo);
+
+  nsresult HandleStartElement(const char16_t* aName, const char16_t** aAtts,
+                              uint32_t aAttsCount, uint32_t aLineNumber,
+                              uint32_t aColumnNumber, bool aInterruptable);
+  nsresult HandleEndElement(const char16_t* aName, bool aInterruptable);
+  nsresult HandleCharacterData(const char16_t* aData, uint32_t aLength,
+                               bool aInterruptable);
+
+  nsCOMPtr<nsIContent> mDocElement;
+  nsCOMPtr<nsIContent> mCurrentHead;  // When set, we're in an XHTML <haed>
+
+  XMLContentSinkState mState;
+
+  // The length of the valid data in mText.
+  int32_t mTextLength;
+
+  int32_t mNotifyLevel;
+  RefPtr<nsTextNode> mLastTextNode;
+
+  uint8_t mPrettyPrintXML : 1;
+  uint8_t mPrettyPrintHasSpecialRoot : 1;
+  uint8_t mPrettyPrintHasFactoredElements : 1;
+  uint8_t mPrettyPrinting : 1;  // True if we called PrettyPrint() and it
+                                // decided we should in fact prettyprint.
+  // True to call prevent script execution in the fragment mode.
+  uint8_t mPreventScriptExecution : 1;
+
+  nsTArray<StackNode> mContentStack;
+
+  nsCOMPtr<nsIDocumentTransformer> mXSLTProcessor;
+
+  // Holds the children in the prolog until the root element is added, after
+  // which they're inserted in the document. However, if we're doing an XSLT
+  // transform this will actually hold all the children of the source document,
+  // until the transform is finished. After the transform is finished we'll just
+  // discard the children.
+  nsTArray<nsCOMPtr<nsIContent>> mDocumentChildren;
+
+  static const int NS_ACCUMULATION_BUFFER_SIZE = 4096;
+  // Our currently accumulated text that we have not flushed to a textnode yet.
+  char16_t mText[NS_ACCUMULATION_BUFFER_SIZE];
+};
+
+#endif  // nsXMLContentSink_h__