LCOV - code coverage report
Current view: directory - content/xtf/src - nsXTFService.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 33 31 93.9 %
Date: 2012-06-02 Functions: 7 7 100.0 %

       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 "nsINodeInfo.h"
      41                 : #include "nsIServiceManager.h"
      42                 : #include "nsIXTFElement.h"
      43                 : #include "nsIXTFElementFactory.h"
      44                 : #include "nsIXTFService.h"
      45                 : #include "nsInterfaceHashtable.h"
      46                 : #include "nsString.h"
      47                 : #include "nsXTFElementWrapper.h"
      48                 : 
      49                 : 
      50                 : ////////////////////////////////////////////////////////////////////////
      51                 : // nsXTFService class 
      52                 : class nsXTFService : public nsIXTFService
      53             235 : {
      54                 : protected:
      55                 :   friend nsresult NS_NewXTFService(nsIXTFService** aResult);
      56                 :   
      57                 :   nsXTFService();
      58                 : 
      59                 : public:
      60                 :   // nsISupports interface
      61                 :   NS_DECL_ISUPPORTS
      62                 : 
      63                 :   // nsIXTFService interface
      64                 :   nsresult CreateElement(nsIContent** aResult,
      65                 :                          already_AddRefed<nsINodeInfo> aNodeInfo);
      66                 : 
      67                 : private:
      68                 :   nsInterfaceHashtable<nsUint32HashKey, nsIXTFElementFactory> mFactoryHash;
      69                 : };
      70                 : 
      71                 : //----------------------------------------------------------------------
      72                 : // implementation:
      73                 : 
      74             236 : nsXTFService::nsXTFService()
      75                 : {
      76             236 :   mFactoryHash.Init(); // XXX this can fail. move to Init()
      77             236 : }
      78                 : 
      79                 : nsresult
      80             236 : NS_NewXTFService(nsIXTFService** aResult)
      81                 : {
      82             236 :   NS_PRECONDITION(aResult != nsnull, "null ptr");
      83             236 :   if (! aResult)
      84               0 :     return NS_ERROR_NULL_POINTER;
      85                 : 
      86             236 :   nsXTFService* result = new nsXTFService();
      87             236 :   if (! result)
      88               0 :     return NS_ERROR_OUT_OF_MEMORY;
      89                 : 
      90             236 :   NS_ADDREF(result);
      91             236 :   *aResult = result;
      92             236 :   return NS_OK;
      93                 : }
      94                 : 
      95                 : //----------------------------------------------------------------------
      96                 : // nsISupports methods
      97                 : 
      98            2358 : NS_IMPL_ISUPPORTS1(nsXTFService, nsIXTFService)
      99                 : 
     100                 : //----------------------------------------------------------------------
     101                 : // nsIXTFService methods
     102                 : 
     103                 : nsresult
     104           19537 : nsXTFService::CreateElement(nsIContent** aResult,
     105                 :                             already_AddRefed<nsINodeInfo> aNodeInfo)
     106                 : {
     107           39074 :   nsCOMPtr<nsIXTFElementFactory> factory;
     108                 : 
     109                 :   // Check if we have an xtf factory for the given namespaceid in our cache:
     110           19537 :   if (!mFactoryHash.Get(aNodeInfo.get()->NamespaceID(), getter_AddRefs(factory))) {
     111                 :     // No. See if there is one registered with the component manager:
     112           39072 :     nsCAutoString xtf_contract_id(NS_XTF_ELEMENT_FACTORY_CONTRACTID_PREFIX);
     113           39072 :     nsAutoString uri;
     114           19536 :     aNodeInfo.get()->GetNamespaceURI(uri);
     115           19536 :     AppendUTF16toUTF8(uri, xtf_contract_id);
     116                 : #ifdef DEBUG_xtf_verbose
     117                 :     printf("Testing for XTF factory at %s\n", xtf_contract_id.get());
     118                 : #endif
     119           19536 :     factory = do_GetService(xtf_contract_id.get());
     120           19536 :     if (factory) {
     121                 : #ifdef DEBUG
     122               1 :       printf("We've got an XTF factory: %s \n", xtf_contract_id.get());
     123                 : #endif
     124                 :       // Put into hash:
     125               1 :       mFactoryHash.Put(aNodeInfo.get()->NamespaceID(), factory);
     126                 :     }
     127                 :   }
     128           19537 :   if (!factory) return NS_ERROR_FAILURE;
     129                 : 
     130                 :   // We have an xtf factory. Now try to create an element for the given tag name:
     131               4 :   nsCOMPtr<nsIXTFElement> elem;
     132               4 :   nsAutoString tagName;
     133               2 :   aNodeInfo.get()->GetName(tagName);
     134               2 :   factory->CreateElement(tagName, getter_AddRefs(elem));
     135               2 :   if (!elem) return NS_ERROR_FAILURE;
     136                 :   
     137                 :   // We've got an xtf element. Create a wrapper for it:
     138               2 :   return NS_NewXTFElementWrapper(elem, aNodeInfo, aResult);
     139                 : }
     140                 : 

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