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nsIDOMParser.idl

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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#include "nsISupports.idl"

interface nsIInputStream;
interface nsIDOMDocument;
interface nsIURI;
interface nsIPrincipal;
interface nsIScriptGlobalObject;

/**
 * The nsIDOMParser interface is a non-SAX interface that can be used
 * to parse a string or byte stream containing XML or HTML content
 * to a DOM document. Parsing is always synchronous - a document is always
 * returned from the parsing methods. This is as opposed to loading and
 * parsing with the XMLHttpRequest interface, which can be used for
 * asynchronous (callback-based) loading.
 */
[scriptable, uuid(5677f36e-1842-4c6f-a39c-2e5576ab8b40)]
00055 interface nsIDOMParser : nsISupports
{
  /**
   * The string passed in is parsed into a DOM document.
   *
   * @param str The UTF16 string to be parsed
   * @param contentType The content type of the string (see parseFromStream)
   * @returns The DOM document created as a result of parsing the 
   *          string
   */
  nsIDOMDocument parseFromString(in wstring str, in string contentType);

  /**
   * The buffer is parsed into a DOM document.
   * The charset is determined from the xml entity decl.
   *
   * @param buf The octet array data to be parsed
   * @param bufLen Length (in bytes) of the data
   * @param contentType The content type of the data (see parseFromStream)
   * @returns The DOM document created as a result of parsing the 
   *          string
   */
  nsIDOMDocument parseFromBuffer([const,array,size_is(bufLen)] in octet buf,
                                 in PRUint32 bufLen, in string contentType);

  /**
   * The byte stream passed in is parsed into a DOM document.
   *
   * Not accessible from web content.
   *
   * @param stream The byte stream whose contents are parsed
   * @param charset The character set that was used to encode the byte
   *                stream. NULL if not specified.
   * @param contentLength The number of bytes in the input stream.
   * @param contentType The content type of the string - either text/xml,
   *                    application/xml, or application/xhtml+xml.
   *                    Must not be NULL.
   * @returns The DOM document created as a result of parsing the 
   *          stream
   */
  nsIDOMDocument parseFromStream(in nsIInputStream stream, 
                                 in string charset,
                                 in long contentLength,
                                 in string contentType);

  /**
   * Initialize the principal and document and base URIs that the parser should
   * use for documents it creates.  If this is not called, then a null
   * principal and its URI will be used.  When creating a DOMParser via the JS
   * constructor, this will be called automatically.  This method may only be
   * called once.  If this method fails, all following parse attempts will
   * fail.
   *
   * @param principal The principal to use for documents we create.
   *                  If this is null, a codebase principal will be created
   *                  based on documentURI; in that case the documentURI must
   *                  be non-null.
   * @param documentURI The documentURI to use for the documents we create.
   *                    If null, the principal's URI will be used;
   *                    in that case, the principal must be non-null and its
   *                    URI must be non-null.
   * @param baseURI The baseURI to use for the documents we create.
   *                If null, the documentURI will be used.
   * @param scriptObject The object from which the context for event handling
   *                     can be got.
   */
  [noscript] void init(in nsIPrincipal principal,
                       in nsIURI documentURI,
                       in nsIURI baseURI,
                       in nsIScriptGlobalObject scriptObject);
};

/**
 * The nsIDOMParserJS interface provides a scriptable way of calling init().
 * Do NOT use this interface from languages other than JavaScript.
 */
[scriptable, uuid(dca92fe9-ae7a-44b7-80aa-d151216698ac)]
00132 interface nsIDOMParserJS : nsISupports
{
  /**
   * Just like nsIDOMParser.init, but callable from JS.  It'll pick up the args
   * from XPConnect.
   */
  void init();
};

%{ C++
#define NS_DOMPARSER_CID                            \
 { /* 3a8a3a50-512c-11d4-9a54-000064657374 */       \
   0x3a8a3a50, 0x512c, 0x11d4,                      \
  {0x9a, 0x54, 0x00, 0x00, 0x64, 0x65, 0x73, 0x74} }
#define NS_DOMPARSER_CONTRACTID \
"@mozilla.org/xmlextras/domparser;1"
%}

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