XMLNode.h

   1 //
   2 // Copyright 2006 The Android Open Source Project
   3 //
   4 // Build resource files from raw assets.
   5 //
   6
   7 #ifndef XML_NODE_H
   8 #define XML_NODE_H
   9
  10 #include "StringPool.h"
  11 #include "ResourceTable.h"
  12
  13 class XMLNode;
  14
  15 extern const char* const RESOURCES_ROOT_NAMESPACE;
  16 extern const char* const RESOURCES_ANDROID_NAMESPACE;
  17
  18 bool isWhitespace(const char16_t* str);
  19
  20 String16 getNamespaceResourcePackage(String16 namespaceUri, bool* outIsPublic = NULL);
  21
  22 status_t parseStyledString(Bundle* bundle,
  23                            const char* fileName,
  24                            ResXMLTree* inXml,
  25                            const String16& endTag,
  26                            String16* outString,
  27                            Vector<StringPool::entry_style_span>* outSpans,
  28                            bool isPseudolocalizable);
  29
  30 void printXMLBlock(ResXMLTree* block);
  31
  32 status_t parseXMLResource(const sp<AaptFile>& file, ResXMLTree* outTree,
  33                           bool stripAll=true, bool keepComments=false,
  34                           const char** cDataTags=NULL);
  35
  36 class XMLNode : public RefBase
  37 {
  38 public:
  39     static sp<XMLNode> parse(const sp<AaptFile>& file);
  40
  41     static inline
  42     sp<XMLNode> newNamespace(const String8& filename, const String16& prefix, const String16& uri) {
  43         return new XMLNode(filename, prefix, uri, true);
  44     }
  45
  46     static inline
  47     sp<XMLNode> newElement(const String8& filename, const String16& ns, const String16& name) {
  48         return new XMLNode(filename, ns, name, false);
  49     }
  50
  51     static inline
  52     sp<XMLNode> newCData(const String8& filename) {
  53         return new XMLNode(filename);
  54     }
  55
  56     enum type {
  57         TYPE_NAMESPACE,
  58         TYPE_ELEMENT,
  59         TYPE_CDATA
  60     };
  61
  62     type getType() const;
  63
  64     const String16& getNamespacePrefix() const;
  65     const String16& getNamespaceUri() const;
  66
  67     const String16& getElementNamespace() const;
  68     const String16& getElementName() const;
  69     const Vector<sp<XMLNode> >& getChildren() const;
  70
  71     const String8& getFilename() const;
  72
  73     struct attribute_entry {
  74         attribute_entry() : index(~(uint32_t)0), nameResId(0)
  75         {
  76             value.dataType = Res_value::TYPE_NULL;
  77         }
  78
  79         bool needStringValue() const {
  80             return nameResId == 0
  81                 || value.dataType == Res_value::TYPE_NULL
  82                 || value.dataType == Res_value::TYPE_STRING;
  83         }
  84
  85         String16 ns;
  86         String16 name;
  87         String16 string;
  88         Res_value value;
  89         uint32_t index;
  90         uint32_t nameResId;
  91         mutable uint32_t namePoolIdx;
  92     };
  93
  94     const Vector<attribute_entry>& getAttributes() const;
  95
  96     const attribute_entry* getAttribute(const String16& ns, const String16& name) const;
  97
  98     const String16& getCData() const;
  99
 100     const String16& getComment() const;
 101
 102     int32_t getStartLineNumber() const;
 103     int32_t getEndLineNumber() const;
 104
 105     sp<XMLNode> searchElement(const String16& tagNamespace, const String16& tagName);
 106
 107     sp<XMLNode> getChildElement(const String16& tagNamespace, const String16& tagName);
 108
 109     status_t addChild(const sp<XMLNode>& child);
 110
 111     status_t insertChildAt(const sp<XMLNode>& child, size_t index);
 112
 113     status_t addAttribute(const String16& ns, const String16& name,
 114                           const String16& value);
 115
 116     void setAttributeResID(size_t attrIdx, uint32_t resId);
 117
 118     status_t appendChars(const String16& chars);
 119
 120     status_t appendComment(const String16& comment);
 121
 122     void setStartLineNumber(int32_t line);
 123     void setEndLineNumber(int32_t line);
 124
 125     void removeWhitespace(bool stripAll=true, const char** cDataTags=NULL);
 126
 127     status_t parseValues(const sp<AaptAssets>& assets, ResourceTable* table);
 128
 129     status_t assignResourceIds(const sp<AaptAssets>& assets,
 130                                const ResourceTable* table = NULL);
 131
 132     status_t flatten(const sp<AaptFile>& dest, bool stripComments,
 133             bool stripRawValues) const;
 134
 135     void print(int indent=0);
 136
 137 private:
 138     struct ParseState
 139     {
 140         String8 filename;
 141         XML_Parser parser;
 142         sp<XMLNode> root;
 143         Vector<sp<XMLNode> > stack;
 144         String16 pendingComment;
 145     };
 146
 147     static void XMLCALL
 148     startNamespace(void *userData, const char *prefix, const char *uri);
 149     static void XMLCALL
 150     startElement(void *userData, const char *name, const char **atts);
 151     static void XMLCALL
 152     characterData(void *userData, const XML_Char *s, int len);
 153     static void XMLCALL
 154     endElement(void *userData, const char *name);
 155     static void XMLCALL
 156     endNamespace(void *userData, const char *prefix);
 157
 158     static void XMLCALL
 159     commentData(void *userData, const char *comment);
 160
 161     // Creating an element node.
 162     XMLNode(const String8& filename, const String16& s1, const String16& s2, bool isNamespace);
 163
 164     // Creating a CDATA node.
 165     XMLNode(const String8& filename);
 166
 167     status_t collect_strings(StringPool* dest, Vector<uint32_t>* outResIds,
 168             bool stripComments, bool stripRawValues) const;
 169
 170     status_t collect_attr_strings(StringPool* outPool,
 171         Vector<uint32_t>* outResIds, bool allAttrs) const;
 172
 173     status_t collect_resid_strings(StringPool* outPool,
 174             Vector<uint32_t>* outResIds) const;
 175
 176     status_t flatten_node(const StringPool& strings, const sp<AaptFile>& dest,
 177             bool stripComments, bool stripRawValues) const;
 178
 179     String16 mNamespacePrefix;
 180     String16 mNamespaceUri;
 181     String16 mElementName;
 182     Vector<sp<XMLNode> > mChildren;
 183     Vector<attribute_entry> mAttributes;
 184     KeyedVector<uint32_t, uint32_t> mAttributeOrder;
 185     uint32_t mNextAttributeIndex;
 186     String16 mChars;
 187     Res_value mCharsValue;
 188     String16 mComment;
 189     String8 mFilename;
 190     int32_t mStartLineNumber;
 191     int32_t mEndLineNumber;
 192 };
 193
 194 #endif