1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/xul/document/src/nsXULContentSink.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,151 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 nsXULContentSink_h__
1.10 +#define nsXULContentSink_h__
1.11 +
1.12 +#include "mozilla/Attributes.h"
1.13 +#include "nsIExpatSink.h"
1.14 +#include "nsIXMLContentSink.h"
1.15 +#include "nsAutoPtr.h"
1.16 +#include "nsNodeInfoManager.h"
1.17 +#include "nsWeakPtr.h"
1.18 +#include "nsXULElement.h"
1.19 +#include "nsIDTD.h"
1.20 +
1.21 +class nsIDocument;
1.22 +class nsIScriptSecurityManager;
1.23 +class nsAttrName;
1.24 +class nsXULPrototypeDocument;
1.25 +class nsXULPrototypeElement;
1.26 +class nsXULPrototypeNode;
1.27 +
1.28 +class XULContentSinkImpl : public nsIXMLContentSink,
1.29 + public nsIExpatSink
1.30 +{
1.31 +public:
1.32 + XULContentSinkImpl();
1.33 + virtual ~XULContentSinkImpl();
1.34 +
1.35 + // nsISupports
1.36 + NS_DECL_CYCLE_COLLECTING_ISUPPORTS
1.37 + NS_DECL_NSIEXPATSINK
1.38 +
1.39 + NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(XULContentSinkImpl, nsIXMLContentSink)
1.40 +
1.41 + // nsIContentSink
1.42 + NS_IMETHOD WillParse(void) MOZ_OVERRIDE { return NS_OK; }
1.43 + NS_IMETHOD WillBuildModel(nsDTDMode aDTDMode) MOZ_OVERRIDE;
1.44 + NS_IMETHOD DidBuildModel(bool aTerminated) MOZ_OVERRIDE;
1.45 + NS_IMETHOD WillInterrupt(void) MOZ_OVERRIDE;
1.46 + NS_IMETHOD WillResume(void) MOZ_OVERRIDE;
1.47 + NS_IMETHOD SetParser(nsParserBase* aParser) MOZ_OVERRIDE;
1.48 + virtual void FlushPendingNotifications(mozFlushType aType) MOZ_OVERRIDE { }
1.49 + NS_IMETHOD SetDocumentCharset(nsACString& aCharset) MOZ_OVERRIDE;
1.50 + virtual nsISupports *GetTarget() MOZ_OVERRIDE;
1.51 +
1.52 + /**
1.53 + * Initialize the content sink, giving it an nsIDocument object
1.54 + * with which to communicate with the outside world, and an
1.55 + * nsXULPrototypeDocument to build.
1.56 + */
1.57 + nsresult Init(nsIDocument* aDocument, nsXULPrototypeDocument* aPrototype);
1.58 +
1.59 +protected:
1.60 + // pseudo-constants
1.61 + char16_t* mText;
1.62 + int32_t mTextLength;
1.63 + int32_t mTextSize;
1.64 + bool mConstrainSize;
1.65 +
1.66 + nsresult AddAttributes(const char16_t** aAttributes,
1.67 + const uint32_t aAttrLen,
1.68 + nsXULPrototypeElement* aElement);
1.69 +
1.70 + nsresult OpenRoot(const char16_t** aAttributes,
1.71 + const uint32_t aAttrLen,
1.72 + nsINodeInfo *aNodeInfo);
1.73 +
1.74 + nsresult OpenTag(const char16_t** aAttributes,
1.75 + const uint32_t aAttrLen,
1.76 + const uint32_t aLineNumber,
1.77 + nsINodeInfo *aNodeInfo);
1.78 +
1.79 + // If OpenScript returns NS_OK and after it returns our state is eInScript,
1.80 + // that means that we created a prototype script and stuck it on
1.81 + // mContextStack. If NS_OK is returned but the state is still
1.82 + // eInDocumentElement then we didn't create a prototype script (e.g. the
1.83 + // script had an unknown type), and the caller should create a prototype
1.84 + // element.
1.85 + nsresult OpenScript(const char16_t** aAttributes,
1.86 + const uint32_t aLineNumber);
1.87 +
1.88 + static bool IsDataInBuffer(char16_t* aBuffer, int32_t aLength);
1.89 +
1.90 + // Text management
1.91 + nsresult FlushText(bool aCreateTextNode = true);
1.92 + nsresult AddText(const char16_t* aText, int32_t aLength);
1.93 +
1.94 +
1.95 + nsRefPtr<nsNodeInfoManager> mNodeInfoManager;
1.96 +
1.97 + nsresult NormalizeAttributeString(const char16_t *aExpatName,
1.98 + nsAttrName &aName);
1.99 + nsresult CreateElement(nsINodeInfo *aNodeInfo,
1.100 + nsXULPrototypeElement** aResult);
1.101 +
1.102 +
1.103 + public:
1.104 + enum State { eInProlog, eInDocumentElement, eInScript, eInEpilog };
1.105 + protected:
1.106 +
1.107 + State mState;
1.108 +
1.109 + // content stack management
1.110 + class ContextStack {
1.111 + protected:
1.112 + struct Entry {
1.113 + nsRefPtr<nsXULPrototypeNode> mNode;
1.114 + // a LOT of nodes have children; preallocate for 8
1.115 + nsPrototypeArray mChildren;
1.116 + State mState;
1.117 + Entry* mNext;
1.118 + Entry() : mChildren(8) {}
1.119 + };
1.120 +
1.121 + Entry* mTop;
1.122 + int32_t mDepth;
1.123 +
1.124 + public:
1.125 + ContextStack();
1.126 + ~ContextStack();
1.127 +
1.128 + int32_t Depth() { return mDepth; }
1.129 +
1.130 + nsresult Push(nsXULPrototypeNode* aNode, State aState);
1.131 + nsresult Pop(State* aState);
1.132 +
1.133 + nsresult GetTopNode(nsRefPtr<nsXULPrototypeNode>& aNode);
1.134 + nsresult GetTopChildren(nsPrototypeArray** aChildren);
1.135 +
1.136 + void Clear();
1.137 +
1.138 + void Traverse(nsCycleCollectionTraversalCallback& aCallback);
1.139 + };
1.140 +
1.141 + friend class ContextStack;
1.142 + ContextStack mContextStack;
1.143 +
1.144 + nsWeakPtr mDocument; // [OWNER]
1.145 + nsCOMPtr<nsIURI> mDocumentURL; // [OWNER]
1.146 +
1.147 + nsRefPtr<nsXULPrototypeDocument> mPrototype; // [OWNER]
1.148 +
1.149 + // We use regular pointer b/c of funky exports on nsIParser:
1.150 + nsParserBase* mParser; // [OWNER]
1.151 + nsCOMPtr<nsIScriptSecurityManager> mSecMan;
1.152 +};
1.153 +
1.154 +#endif /* nsXULContentSink_h__ */
