LCOV - code coverage report
Current view: directory - content/xtf/src - nsXMLContentBuilder.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 78 0 0.0 %
Date: 2012-06-02 Functions: 16 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is the Mozilla XTF project.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Alex Fritze.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 2004
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *   Alex Fritze <alex@croczilla.com> (original author)
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      27                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK ***** */
      38                 : 
      39                 : #include "nsCOMPtr.h"
      40                 : #include "nsString.h"
      41                 : #include "nsIXMLContentBuilder.h"
      42                 : #include "nsINameSpaceManager.h"
      43                 : #include "nsINodeInfo.h"
      44                 : #include "nsIContent.h"
      45                 : #include "nsIComponentManager.h"
      46                 : #include "nsIServiceManager.h"
      47                 : #include "nsIAtom.h"
      48                 : #include "nsContentCID.h"
      49                 : #include "nsIDocument.h"
      50                 : #include "nsIDOMElement.h"
      51                 : #include "nsIDOMDocument.h"
      52                 : #include "nsIDOMText.h"
      53                 : #include "nsNodeInfoManager.h"
      54                 : #include "nsContentCreatorFunctions.h"
      55                 : #include "nsContentUtils.h"
      56                 : 
      57                 : static NS_DEFINE_CID(kXMLDocumentCID, NS_XMLDOCUMENT_CID);
      58                 : 
      59                 : class nsXMLContentBuilder : public nsIXMLContentBuilder
      60                 : {
      61                 : protected:
      62                 :   friend nsresult NS_NewXMLContentBuilder(nsIXMLContentBuilder** aResult);
      63                 :   
      64                 :   nsXMLContentBuilder();
      65                 :   ~nsXMLContentBuilder();
      66                 :   
      67                 : public:
      68                 :   // nsISupports interface
      69                 :   NS_DECL_ISUPPORTS
      70                 : 
      71                 :   // nsIXMLContentBuilder interface
      72                 :   NS_DECL_NSIXMLCONTENTBUILDER
      73                 : 
      74                 : private:
      75                 :   void EnsureDoc();
      76                 :   
      77                 :   nsCOMPtr<nsIContent> mTop;
      78                 :   nsCOMPtr<nsIContent> mCurrent;
      79                 :   nsCOMPtr<nsIDocument> mDocument;
      80                 :   PRInt32 mNamespaceId;
      81                 : };
      82                 : 
      83                 : //----------------------------------------------------------------------
      84                 : // implementation:
      85                 : 
      86               0 : nsXMLContentBuilder::nsXMLContentBuilder()
      87               0 :     : mNamespaceId(kNameSpaceID_None)
      88                 : {
      89                 : #ifdef DEBUG
      90                 : //  printf("nsXMLContentBuilder CTOR\n");
      91                 : #endif
      92               0 : }
      93                 : 
      94               0 : nsXMLContentBuilder::~nsXMLContentBuilder()
      95                 : {
      96                 : #ifdef DEBUG
      97                 : //  printf("~nsXMLContentBuilder\n");
      98                 : #endif
      99               0 : }
     100                 : 
     101                 : nsresult
     102               0 : NS_NewXMLContentBuilder(nsIXMLContentBuilder** aResult)
     103                 : {
     104               0 :   nsXMLContentBuilder* result = new nsXMLContentBuilder();
     105               0 :   if (! result)
     106               0 :     return NS_ERROR_OUT_OF_MEMORY;
     107                 : 
     108               0 :   NS_ADDREF(result);
     109               0 :   *aResult = result;
     110               0 :   return NS_OK;
     111                 : }
     112                 : 
     113                 : //----------------------------------------------------------------------
     114                 : // nsISupports methods
     115                 : 
     116               0 : NS_IMPL_ISUPPORTS1(nsXMLContentBuilder, nsIXMLContentBuilder)
     117                 : 
     118                 : //----------------------------------------------------------------------
     119                 : // nsIXMLContentBuilder implementation
     120                 : 
     121                 : /* void clear (in nsIDOMElement root); */
     122               0 : NS_IMETHODIMP nsXMLContentBuilder::Clear(nsIDOMElement *root)
     123                 : {
     124               0 :   mCurrent = do_QueryInterface(root);
     125               0 :   mTop = do_QueryInterface(root);
     126               0 :   if (mNamespaceId != kNameSpaceID_None) {
     127               0 :     mNamespaceId = kNameSpaceID_None;
     128                 :   }
     129               0 :   return NS_OK;
     130                 : }
     131                 : 
     132                 : /* void setDocument (in nsIDOMDocument doc); */
     133               0 : NS_IMETHODIMP nsXMLContentBuilder::SetDocument(nsIDOMDocument *doc)
     134                 : {
     135               0 :   mDocument = do_QueryInterface(doc);
     136                 : #ifdef DEBUG
     137               0 :   if (!mDocument)
     138               0 :     NS_WARNING("null document in nsXMLContentBuilder::SetDocument");
     139                 : #endif
     140               0 :   return NS_OK;
     141                 : }
     142                 : 
     143                 : /* void setElementNamespace (in AString ns); */
     144               0 : NS_IMETHODIMP nsXMLContentBuilder::SetElementNamespace(const nsAString & ns)
     145                 : {
     146               0 :   nsContentUtils::NameSpaceManager()->RegisterNameSpace(ns, mNamespaceId);
     147               0 :   return NS_OK;
     148                 : }
     149                 : 
     150                 : /* void beginElement (in AString tagname); */
     151               0 : NS_IMETHODIMP nsXMLContentBuilder::BeginElement(const nsAString & tagname)
     152                 : {
     153               0 :   nsCOMPtr<nsIContent> node;
     154                 :   {
     155               0 :     EnsureDoc();
     156               0 :     mDocument->CreateElem(tagname, nsnull, mNamespaceId, getter_AddRefs(node));
     157                 :   }
     158               0 :   if (!node) {
     159               0 :     NS_ERROR("could not create node");
     160               0 :     return NS_ERROR_FAILURE;
     161                 :   }
     162                 : 
     163                 :   // ok, we created a content element. now either append it to our
     164                 :   // top-level array or to the current element.
     165               0 :   if (!mCurrent) {
     166               0 :     if (mTop) {
     167               0 :       NS_ERROR("Building of multi-rooted trees not supported");
     168               0 :       return NS_ERROR_FAILURE;
     169                 :     }
     170               0 :     mTop = node;
     171               0 :     mCurrent = mTop;
     172                 :   }
     173                 :   else {    
     174               0 :     mCurrent->AppendChildTo(node, true);
     175               0 :     mCurrent = node;
     176                 :   }
     177                 :   
     178               0 :   return NS_OK;
     179                 : }
     180                 : 
     181                 : /* void endElement (); */
     182               0 : NS_IMETHODIMP nsXMLContentBuilder::EndElement()
     183                 : {
     184               0 :   NS_ASSERTION(mCurrent, "unbalanced begin/endelement");
     185               0 :   mCurrent = mCurrent->GetParent();
     186               0 :   return NS_OK;
     187                 : }
     188                 : 
     189                 : /* void attrib (in AString name, in AString value); */
     190               0 : NS_IMETHODIMP nsXMLContentBuilder::Attrib(const nsAString & name, const nsAString & value)
     191                 : {
     192               0 :   NS_ASSERTION(mCurrent, "can't set attrib w/o open element");
     193               0 :   nsCOMPtr<nsIAtom> nameAtom = do_GetAtom(name);
     194               0 :   mCurrent->SetAttr(0, nameAtom, value, true);
     195               0 :   return NS_OK;
     196                 : }
     197                 : 
     198                 : /* void textNode (in AString text); */
     199               0 : NS_IMETHODIMP nsXMLContentBuilder::TextNode(const nsAString & text)
     200                 : {
     201               0 :   EnsureDoc();
     202               0 :   NS_ASSERTION(mCurrent, "can't append textnode w/o open element");
     203               0 :   nsCOMPtr<nsIDOMDocument> domDoc = do_QueryInterface(mDocument);
     204               0 :   NS_ASSERTION(domDoc, "no dom document");
     205                 : 
     206               0 :   nsCOMPtr<nsIDOMText> textNode;
     207               0 :   domDoc->CreateTextNode(text, getter_AddRefs(textNode));
     208               0 :   NS_ASSERTION(textNode, "Failed to create text node");
     209               0 :   nsCOMPtr<nsIContent> textContent = do_QueryInterface(textNode);
     210               0 :   mCurrent->AppendChildTo(textContent, true);
     211               0 :   return NS_OK;
     212                 : }
     213                 : 
     214                 : /* readonly attribute nsIDOMElement root; */
     215               0 : NS_IMETHODIMP nsXMLContentBuilder::GetRoot(nsIDOMElement * *aRoot)
     216                 : {
     217               0 :   if (!mTop) {
     218               0 :     *aRoot = nsnull;
     219               0 :     return NS_OK;
     220                 :   }
     221               0 :   return CallQueryInterface(mTop, aRoot);
     222                 : }
     223                 : 
     224                 : /* readonly attribute nsIDOMElement current; */
     225               0 : NS_IMETHODIMP nsXMLContentBuilder::GetCurrent(nsIDOMElement * *aCurrent)
     226                 : {
     227               0 :   if (!mCurrent) {
     228               0 :     *aCurrent = nsnull;
     229               0 :     return NS_OK;
     230                 :   }  
     231               0 :   return CallQueryInterface(mCurrent, aCurrent);
     232                 : }
     233                 : 
     234                 : //----------------------------------------------------------------------
     235                 : // implementation helpers
     236                 : 
     237               0 : void nsXMLContentBuilder::EnsureDoc()
     238                 : {
     239               0 :   if (!mDocument) {
     240               0 :     mDocument = do_CreateInstance(kXMLDocumentCID);
     241                 :     // XXX should probably do some doc initialization here, such as
     242                 :     // setting the base url
     243                 :   }
     244               0 :   NS_ASSERTION(mDocument, "null doc");
     245               0 : }

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