1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/xml/document/src/nsXMLContentSink.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,194 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef nsXMLContentSink_h__
1.10 +#define nsXMLContentSink_h__
1.11 +
1.12 +#include "mozilla/Attributes.h"
1.13 +#include "nsContentSink.h"
1.14 +#include "nsIXMLContentSink.h"
1.15 +#include "nsIExpatSink.h"
1.16 +#include "nsIDocumentTransformer.h"
1.17 +#include "nsTArray.h"
1.18 +#include "nsCOMPtr.h"
1.19 +#include "nsCRT.h"
1.20 +#include "nsCycleCollectionParticipant.h"
1.21 +#include "nsIDTD.h"
1.22 +#include "mozilla/dom/FromParser.h"
1.23 +
1.24 +class nsIDocument;
1.25 +class nsIURI;
1.26 +class nsIContent;
1.27 +class nsINodeInfo;
1.28 +class nsIParser;
1.29 +class nsViewManager;
1.30 +
1.31 +typedef enum {
1.32 + eXMLContentSinkState_InProlog,
1.33 + eXMLContentSinkState_InDocumentElement,
1.34 + eXMLContentSinkState_InEpilog
1.35 +} XMLContentSinkState;
1.36 +
1.37 +struct StackNode {
1.38 + nsCOMPtr<nsIContent> mContent;
1.39 + uint32_t mNumFlushed;
1.40 +};
1.41 +
1.42 +class nsXMLContentSink : public nsContentSink,
1.43 + public nsIXMLContentSink,
1.44 + public nsITransformObserver,
1.45 + public nsIExpatSink
1.46 +{
1.47 +public:
1.48 + nsXMLContentSink();
1.49 + virtual ~nsXMLContentSink();
1.50 +
1.51 + NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW
1.52 +
1.53 + nsresult Init(nsIDocument* aDoc,
1.54 + nsIURI* aURL,
1.55 + nsISupports* aContainer,
1.56 + nsIChannel* aChannel);
1.57 +
1.58 + // nsISupports
1.59 + NS_DECL_ISUPPORTS_INHERITED
1.60 +
1.61 + NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_NO_UNLINK(nsXMLContentSink,
1.62 + nsContentSink)
1.63 +
1.64 + NS_DECL_NSIEXPATSINK
1.65 +
1.66 + // nsIContentSink
1.67 + NS_IMETHOD WillParse(void) MOZ_OVERRIDE;
1.68 + NS_IMETHOD WillBuildModel(nsDTDMode aDTDMode) MOZ_OVERRIDE;
1.69 + NS_IMETHOD DidBuildModel(bool aTerminated) MOZ_OVERRIDE;
1.70 + NS_IMETHOD WillInterrupt(void) MOZ_OVERRIDE;
1.71 + NS_IMETHOD WillResume(void) MOZ_OVERRIDE;
1.72 + NS_IMETHOD SetParser(nsParserBase* aParser) MOZ_OVERRIDE;
1.73 + virtual void FlushPendingNotifications(mozFlushType aType) MOZ_OVERRIDE;
1.74 + NS_IMETHOD SetDocumentCharset(nsACString& aCharset) MOZ_OVERRIDE;
1.75 + virtual nsISupports *GetTarget() MOZ_OVERRIDE;
1.76 + virtual bool IsScriptExecuting() MOZ_OVERRIDE;
1.77 + virtual void ContinueInterruptedParsingAsync() MOZ_OVERRIDE;
1.78 +
1.79 + // nsITransformObserver
1.80 + NS_IMETHOD OnDocumentCreated(nsIDocument *aResultDocument) MOZ_OVERRIDE;
1.81 + NS_IMETHOD OnTransformDone(nsresult aResult, nsIDocument *aResultDocument) MOZ_OVERRIDE;
1.82 +
1.83 + // nsICSSLoaderObserver
1.84 + NS_IMETHOD StyleSheetLoaded(nsCSSStyleSheet* aSheet, bool aWasAlternate,
1.85 + nsresult aStatus) MOZ_OVERRIDE;
1.86 + static bool ParsePIData(const nsString &aData, nsString &aHref,
1.87 + nsString &aTitle, nsString &aMedia,
1.88 + bool &aIsAlternate);
1.89 +
1.90 +protected:
1.91 +
1.92 + nsIParser* GetParser();
1.93 +
1.94 + void ContinueInterruptedParsingIfEnabled();
1.95 +
1.96 + // Start layout. If aIgnorePendingSheets is true, this will happen even if
1.97 + // we still have stylesheet loads pending. Otherwise, we'll wait until the
1.98 + // stylesheets are all done loading.
1.99 + virtual void MaybeStartLayout(bool aIgnorePendingSheets);
1.100 +
1.101 + virtual nsresult AddAttributes(const char16_t** aNode, nsIContent* aContent);
1.102 + nsresult AddText(const char16_t* aString, int32_t aLength);
1.103 +
1.104 + virtual bool OnOpenContainer(const char16_t **aAtts,
1.105 + uint32_t aAttsCount,
1.106 + int32_t aNameSpaceID,
1.107 + nsIAtom* aTagName,
1.108 + uint32_t aLineNumber) { return true; }
1.109 + // Set the given content as the root element for the created document
1.110 + // don't set if root element was already set.
1.111 + // return TRUE if this call set the root element
1.112 + virtual bool SetDocElement(int32_t aNameSpaceID,
1.113 + nsIAtom *aTagName,
1.114 + nsIContent *aContent);
1.115 + virtual bool NotifyForDocElement() { return true; }
1.116 + virtual nsresult CreateElement(const char16_t** aAtts, uint32_t aAttsCount,
1.117 + nsINodeInfo* aNodeInfo, uint32_t aLineNumber,
1.118 + nsIContent** aResult, bool* aAppendContent,
1.119 + mozilla::dom::FromParser aFromParser);
1.120 +
1.121 + // aParent is allowed to be null here if this is the root content
1.122 + // being closed
1.123 + virtual nsresult CloseElement(nsIContent* aContent);
1.124 +
1.125 + virtual nsresult FlushText(bool aReleaseTextNode = true);
1.126 +
1.127 + nsresult AddContentAsLeaf(nsIContent *aContent);
1.128 +
1.129 + nsIContent* GetCurrentContent();
1.130 + StackNode* GetCurrentStackNode();
1.131 + nsresult PushContent(nsIContent *aContent);
1.132 + void PopContent();
1.133 + bool HaveNotifiedForCurrentContent() const;
1.134 +
1.135 + nsresult FlushTags() MOZ_OVERRIDE;
1.136 +
1.137 + void UpdateChildCounts() MOZ_OVERRIDE;
1.138 +
1.139 + void DidAddContent()
1.140 + {
1.141 + if (IsTimeToNotify()) {
1.142 + FlushTags();
1.143 + }
1.144 + }
1.145 +
1.146 + // nsContentSink override
1.147 + virtual nsresult ProcessStyleLink(nsIContent* aElement,
1.148 + const nsSubstring& aHref,
1.149 + bool aAlternate,
1.150 + const nsSubstring& aTitle,
1.151 + const nsSubstring& aType,
1.152 + const nsSubstring& aMedia) MOZ_OVERRIDE;
1.153 +
1.154 + nsresult LoadXSLStyleSheet(nsIURI* aUrl);
1.155 +
1.156 + bool CanStillPrettyPrint();
1.157 +
1.158 + nsresult MaybePrettyPrint();
1.159 +
1.160 + bool IsMonolithicContainer(nsINodeInfo* aNodeInfo);
1.161 +
1.162 + nsresult HandleStartElement(const char16_t *aName, const char16_t **aAtts,
1.163 + uint32_t aAttsCount, int32_t aIndex,
1.164 + uint32_t aLineNumber,
1.165 + bool aInterruptable);
1.166 + nsresult HandleEndElement(const char16_t *aName, bool aInterruptable);
1.167 + nsresult HandleCharacterData(const char16_t *aData, uint32_t aLength,
1.168 + bool aInterruptable);
1.169 +
1.170 + nsCOMPtr<nsIContent> mDocElement;
1.171 + nsCOMPtr<nsIContent> mCurrentHead; // When set, we're in an XHTML <haed>
1.172 + char16_t* mText;
1.173 +
1.174 + XMLContentSinkState mState;
1.175 +
1.176 + int32_t mTextLength;
1.177 + int32_t mTextSize;
1.178 +
1.179 + int32_t mNotifyLevel;
1.180 + nsCOMPtr<nsIContent> mLastTextNode;
1.181 + int32_t mLastTextNodeSize;
1.182 +
1.183 + uint8_t mConstrainSize : 1;
1.184 + uint8_t mPrettyPrintXML : 1;
1.185 + uint8_t mPrettyPrintHasSpecialRoot : 1;
1.186 + uint8_t mPrettyPrintHasFactoredElements : 1;
1.187 + uint8_t mPrettyPrinting : 1; // True if we called PrettyPrint() and it
1.188 + // decided we should in fact prettyprint.
1.189 + // True to call prevent script execution in the fragment mode.
1.190 + uint8_t mPreventScriptExecution : 1;
1.191 +
1.192 + nsTArray<StackNode> mContentStack;
1.193 +
1.194 + nsCOMPtr<nsIDocumentTransformer> mXSLTProcessor;
1.195 +};
1.196 +
1.197 +#endif // nsXMLContentSink_h__
