LCOV - code coverage report
Current view: top level - framework/source/helper - ocomponentenumeration.cxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 21 26 80.8 %
Date: 2012-08-25 Functions: 6 7 85.7 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 14 36 38.9 %

           Branch data     Line data    Source code
       1                 :            : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2                 :            : /*
       3                 :            :  * This file is part of the LibreOffice project.
       4                 :            :  *
       5                 :            :  * This Source Code Form is subject to the terms of the Mozilla Public
       6                 :            :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7                 :            :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8                 :            :  *
       9                 :            :  * This file incorporates work covered by the following license notice:
      10                 :            :  *
      11                 :            :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12                 :            :  *   contributor license agreements. See the NOTICE file distributed
      13                 :            :  *   with this work for additional information regarding copyright
      14                 :            :  *   ownership. The ASF licenses this file to you under the Apache
      15                 :            :  *   License, Version 2.0 (the "License"); you may not use this file
      16                 :            :  *   except in compliance with the License. You may obtain a copy of
      17                 :            :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18                 :            :  */
      19                 :            : 
      20                 :            : #include <helper/ocomponentenumeration.hxx>
      21                 :            : 
      22                 :            : #include <threadhelp/resetableguard.hxx>
      23                 :            : 
      24                 :            : #include <vcl/svapp.hxx>
      25                 :            : 
      26                 :            : namespace framework{
      27                 :            : 
      28                 :            : using namespace ::com::sun::star::container     ;
      29                 :            : using namespace ::com::sun::star::lang          ;
      30                 :            : using namespace ::com::sun::star::uno           ;
      31                 :            : using namespace ::cppu                          ;
      32                 :            : using namespace ::osl                           ;
      33                 :            : using namespace ::rtl                           ;
      34                 :            : 
      35                 :            : //*****************************************************************************************************************
      36                 :            : //  constructor
      37                 :            : //*****************************************************************************************************************
      38                 :          8 : OComponentEnumeration::OComponentEnumeration( const Sequence< css::uno::Reference< XComponent > >& seqComponents )
      39                 :            :         //  Init baseclasses first
      40                 :            :         //  Attention:
      41                 :            :         //      Don't change order of initialization!
      42                 :            :         //      ThreadHelpBase is a struct with a mutex as member. We can't use a mutex as member, while
      43                 :            :         //      we must garant right initialization and a valid value of this! First initialize
      44                 :            :         //      baseclasses and then members. And we need the mutex for other baseclasses !!!
      45                 :          8 :         :   ThreadHelpBase  ( &Application::GetSolarMutex() )
      46                 :            :         // Init member
      47                 :            :         ,   m_nPosition     ( 0                             )   // 0 is the first position for a valid list and the right value for an invalid list to!
      48 [ +  - ][ +  - ]:          8 :         ,   m_seqComponents ( seqComponents                 )
      49                 :            : {
      50                 :            :     // Safe impossible states
      51                 :            :     // "Method" not defined for ALL parameters!
      52                 :            :     LOG_ASSERT( impldbg_checkParameter_OComponentEnumerationCtor( seqComponents ), "OComponentEnumeration::OComponentEnumeration()\nInvalid parameter detected!\n" )
      53                 :          8 : }
      54                 :            : 
      55                 :            : //*****************************************************************************************************************
      56                 :            : //  destructor
      57                 :            : //*****************************************************************************************************************
      58 [ +  - ][ +  - ]:          8 : OComponentEnumeration::~OComponentEnumeration()
      59                 :            : {
      60                 :            :     // Reset instance, free memory ....
      61         [ +  - ]:          8 :     impl_resetObject();
      62         [ -  + ]:         16 : }
      63                 :            : 
      64                 :            : //*****************************************************************************************************************
      65                 :            : //  XEventListener
      66                 :            : //*****************************************************************************************************************
      67                 :          0 : void SAL_CALL OComponentEnumeration::disposing( const EventObject&
      68                 :            : #if OSL_DEBUG_LEVEL > 0
      69                 :            : aEvent
      70                 :            : #endif
      71                 :            : ) throw( RuntimeException )
      72                 :            : {
      73                 :            :     // Ready for multithreading
      74         [ #  # ]:          0 :     ResetableGuard aGuard( m_aLock );
      75                 :            : 
      76                 :            :     // Safe impossible cases
      77                 :            :     // This method is not specified for all incoming parameters.
      78                 :            :     LOG_ASSERT( impldbg_checkParameter_disposing( aEvent ), "OComponentEnumeration::disposing()\nInvalid parameter detected!\n" )
      79                 :            : 
      80                 :            :     // Reset instance to defaults, release references and free memory.
      81 [ #  # ][ #  # ]:          0 :     impl_resetObject();
      82                 :          0 : }
      83                 :            : 
      84                 :            : //*****************************************************************************************************************
      85                 :            : //  XEnumeration
      86                 :            : //*****************************************************************************************************************
      87                 :         24 : sal_Bool SAL_CALL OComponentEnumeration::hasMoreElements() throw( RuntimeException )
      88                 :            : {
      89                 :            :     // Ready for multithreading
      90         [ +  - ]:         24 :     ResetableGuard aGuard( m_aLock );
      91                 :            : 
      92                 :            :     // First position in a valid list is 0.
      93                 :            :     // => The last one is getLength() - 1!
      94                 :            :     // m_nPosition's current value is the position for the next element, which will be return, if user call "nextElement()"
      95                 :            :     // => We have more elements if current position less then the length of the list!
      96         [ +  - ]:         24 :     return ( m_nPosition < (sal_uInt32)(m_seqComponents.getLength()) );
      97                 :            : }
      98                 :            : 
      99                 :            : //*****************************************************************************************************************
     100                 :            : //  XEnumeration
     101                 :            : //*****************************************************************************************************************
     102                 :          8 : Any SAL_CALL OComponentEnumeration::nextElement() throw(    NoSuchElementException  ,
     103                 :            :                                                              WrappedTargetException ,
     104                 :            :                                                             RuntimeException        )
     105                 :            : {
     106                 :            :     // Ready for multithreading
     107         [ +  - ]:          8 :     ResetableGuard aGuard( m_aLock );
     108                 :            : 
     109                 :            :     // If we have no elements or end of enumeration is arrived ...
     110 [ +  - ][ -  + ]:          8 :     if ( hasMoreElements() == sal_False )
     111                 :            :     {
     112                 :            :         // .. throw an exception!
     113         [ #  # ]:          0 :         throw NoSuchElementException();
     114                 :            :     }
     115                 :            : 
     116                 :            :     // Else; Get next element from list ...
     117                 :          8 :     Any aComponent;
     118 [ +  - ][ +  - ]:          8 :     aComponent <<= m_seqComponents[m_nPosition];
     119                 :            :     // ... and step to next element!
     120                 :          8 :     ++m_nPosition;
     121                 :            : 
     122                 :            :     // Return listitem.
     123         [ +  - ]:          8 :     return aComponent;
     124                 :            : }
     125                 :            : 
     126                 :            : //*****************************************************************************************************************
     127                 :            : //  proteced method
     128                 :            : //*****************************************************************************************************************
     129                 :          8 : void OComponentEnumeration::impl_resetObject()
     130                 :            : {
     131                 :            :     // Attention:
     132                 :            :     // Write this for multiple calls - NOT AT THE SAME TIME - but for more then one call again)!
     133                 :            :     // It exist two ways to call this method. From destructor and from disposing().
     134                 :            :     // I can't say, which one is the first. Normaly the disposing-call - but other way ....
     135                 :            : 
     136                 :            :     // Delete list of components.
     137                 :          8 :     m_seqComponents.realloc( 0 );
     138                 :            :     // Reset position in list.
     139                 :            :     // The list has no elements anymore. m_nPosition is normaly the current position in list for nextElement!
     140                 :            :     // But a position of 0 in a list of 0 items is an invalid state. This constellation can't work in future.
     141                 :            :     // End of enumeration is arrived!
     142                 :            :     // (see hasMoreElements() for more details...)
     143                 :          8 :     m_nPosition = 0 ;
     144                 :          8 : }
     145                 :            : 
     146                 :            : //_________________________________________________________________________________________________________________
     147                 :            : //  debug methods
     148                 :            : //_________________________________________________________________________________________________________________
     149                 :            : 
     150                 :            : /*-----------------------------------------------------------------------------------------------------------------
     151                 :            :     The follow methods checks the parameter for other functions. If a parameter or his value is non valid,
     152                 :            :     we return "sal_False". (else sal_True) This mechanism is used to throw an ASSERT!
     153                 :            : 
     154                 :            :     ATTENTION
     155                 :            : 
     156                 :            :         If you miss a test for one of this parameters, contact the autor or add it himself !(?)
     157                 :            :         But ... look for right testing! See using of this methods!
     158                 :            : -----------------------------------------------------------------------------------------------------------------*/
     159                 :            : 
     160                 :            : #ifdef ENABLE_ASSERTIONS
     161                 :            : 
     162                 :            : //*****************************************************************************************************************
     163                 :            : // An empty list is allowed ... hasMoreElements() will return false then!
     164                 :            : sal_Bool OComponentEnumeration::impldbg_checkParameter_OComponentEnumerationCtor( const Sequence< css::uno::Reference< XComponent > >& seqComponents )
     165                 :            : {
     166                 :            :     // Set default return value.
     167                 :            :     sal_Bool bOK = sal_True;
     168                 :            :     // Check parameter.
     169                 :            :     if  (
     170                 :            :             ( &seqComponents == NULL )
     171                 :            :         )
     172                 :            :     {
     173                 :            :         bOK = sal_False ;
     174                 :            :     }
     175                 :            :     // Return result of check.
     176                 :            :     return bOK ;
     177                 :            : }
     178                 :            : 
     179                 :            : //*****************************************************************************************************************
     180                 :            : sal_Bool OComponentEnumeration::impldbg_checkParameter_disposing( const EventObject& aEvent )
     181                 :            : {
     182                 :            :     // Set default return value.
     183                 :            :     sal_Bool bOK = sal_True;
     184                 :            :     // Check parameter.
     185                 :            :     if  (
     186                 :            :             ( &aEvent               ==  NULL        )   ||
     187                 :            :             ( aEvent.Source.is()    ==  sal_False   )
     188                 :            :         )
     189                 :            :     {
     190                 :            :         bOK = sal_False ;
     191                 :            :     }
     192                 :            :     // Return result of check.
     193                 :            :     return bOK ;
     194                 :            : }
     195                 :            : 
     196                 :            : #endif  //  #ifdef ENABLE_ASSERTIONS
     197                 :            : 
     198                 :            : }       //  namespace framework
     199                 :            : 
     200                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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