LCOV - code coverage report
Current view: directory - embedding/components/commandhandler/src - nsCommandGroup.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 131 0 0.0 %
Date: 2012-06-02 Functions: 31 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 mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1998
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      26                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : 
      38                 : #include "nsString.h"
      39                 : #include "nsReadableUtils.h"
      40                 : #include "nsTArray.h"
      41                 : #include "nsISimpleEnumerator.h"
      42                 : #include "nsXPCOM.h"
      43                 : #include "nsSupportsPrimitives.h"
      44                 : #include "nsIComponentManager.h"
      45                 : 
      46                 : #include "nsCommandGroup.h"
      47                 : #include "nsIControllerCommand.h"
      48                 : #include "nsCRT.h"
      49                 : 
      50                 : 
      51                 : class nsGroupsEnumerator : public nsISimpleEnumerator
      52                 : {
      53                 : public:
      54                 :               nsGroupsEnumerator(nsHashtable& inHashTable);
      55                 :   virtual     ~nsGroupsEnumerator();
      56                 : 
      57                 :   NS_DECL_ISUPPORTS
      58                 :   NS_DECL_NSISIMPLEENUMERATOR
      59                 : 
      60                 : protected:
      61                 : 
      62                 :   static bool HashEnum(nsHashKey *aKey, void *aData, void* aClosure);
      63                 : 
      64                 :   nsresult      Initialize();
      65                 : 
      66                 : protected:
      67                 : 
      68                 :   nsHashtable&  mHashTable;
      69                 :   PRInt32       mIndex;
      70                 :   char **       mGroupNames;        // array of pointers to PRUnichar* in the hash table
      71                 :   bool          mInitted;
      72                 :   
      73                 : };
      74                 : 
      75                 : /* Implementation file */
      76               0 : NS_IMPL_ISUPPORTS1(nsGroupsEnumerator, nsISimpleEnumerator)
      77                 : 
      78               0 : nsGroupsEnumerator::nsGroupsEnumerator(nsHashtable& inHashTable)
      79                 : : mHashTable(inHashTable)
      80                 : , mIndex(-1)
      81                 : , mGroupNames(nsnull)
      82               0 : , mInitted(false)
      83                 : {
      84                 :   /* member initializers and constructor code */
      85               0 : }
      86                 : 
      87               0 : nsGroupsEnumerator::~nsGroupsEnumerator()
      88                 : {
      89               0 :   delete [] mGroupNames;    // ok on null pointer
      90               0 : }
      91                 : 
      92                 : /* boolean hasMoreElements (); */
      93                 : NS_IMETHODIMP
      94               0 : nsGroupsEnumerator::HasMoreElements(bool *_retval)
      95                 : {
      96               0 :   nsresult  rv = NS_OK;
      97                 :   
      98               0 :   NS_ENSURE_ARG_POINTER(_retval);
      99                 : 
     100               0 :   if (!mInitted) {
     101               0 :     rv = Initialize();
     102               0 :     if (NS_FAILED(rv)) return rv;
     103                 :   }
     104                 :   
     105               0 :   *_retval = (mIndex < mHashTable.Count() - 1); 
     106               0 :   return NS_OK;
     107                 : }
     108                 : 
     109                 : /* nsISupports getNext (); */
     110                 : NS_IMETHODIMP
     111               0 : nsGroupsEnumerator::GetNext(nsISupports **_retval)
     112                 : {
     113               0 :   nsresult  rv = NS_OK;
     114                 :   
     115               0 :   NS_ENSURE_ARG_POINTER(_retval);
     116                 : 
     117               0 :   if (!mInitted) {
     118               0 :     rv = Initialize();
     119               0 :     if (NS_FAILED(rv)) return rv;
     120                 :   }
     121                 :   
     122               0 :   mIndex ++;
     123               0 :   if (mIndex >= mHashTable.Count())
     124               0 :     return NS_ERROR_FAILURE;
     125                 : 
     126               0 :   char *thisGroupName = mGroupNames[mIndex];
     127                 :   
     128               0 :   nsCOMPtr<nsISupportsCString> supportsString = do_CreateInstance(NS_SUPPORTS_CSTRING_CONTRACTID, &rv);
     129               0 :   if (NS_FAILED(rv)) return rv;
     130                 : 
     131               0 :   supportsString->SetData(nsDependentCString(thisGroupName));
     132               0 :   return CallQueryInterface(supportsString, _retval);
     133                 : }
     134                 : 
     135                 : /* static */
     136                 : /* return false to stop */
     137                 : bool
     138               0 : nsGroupsEnumerator::HashEnum(nsHashKey *aKey, void *aData, void* aClosure)
     139                 : {
     140               0 :   nsGroupsEnumerator*   groupsEnum = reinterpret_cast<nsGroupsEnumerator *>(aClosure);
     141               0 :   nsCStringKey*         stringKey = static_cast<nsCStringKey*>(aKey);
     142                 :   
     143               0 :   groupsEnum->mGroupNames[groupsEnum->mIndex] = (char*)stringKey->GetString();
     144               0 :   groupsEnum->mIndex ++;
     145               0 :   return true;
     146                 : }
     147                 : 
     148                 : nsresult
     149               0 : nsGroupsEnumerator::Initialize()
     150                 : {
     151               0 :   if (mInitted) return NS_OK;
     152                 :   
     153               0 :   mGroupNames = new char*[mHashTable.Count()];
     154               0 :   if (!mGroupNames) return NS_ERROR_OUT_OF_MEMORY;
     155                 :   
     156               0 :   mIndex = 0; 
     157               0 :   mHashTable.Enumerate(HashEnum, (void*)this);
     158                 : 
     159               0 :   mIndex = -1;
     160               0 :   mInitted = true;
     161               0 :   return NS_OK;
     162                 : }
     163                 : 
     164                 : #if 0
     165                 : #pragma mark -
     166                 : #endif
     167                 : 
     168                 : class nsNamedGroupEnumerator : public nsISimpleEnumerator
     169                 : {
     170                 : public:
     171                 :               nsNamedGroupEnumerator(nsTArray<char*>* inArray);
     172                 :   virtual     ~nsNamedGroupEnumerator();
     173                 : 
     174                 :   NS_DECL_ISUPPORTS
     175                 :   NS_DECL_NSISIMPLEENUMERATOR
     176                 : 
     177                 : protected:
     178                 : 
     179                 :   nsTArray<char*>* mGroupArray;
     180                 :   PRInt32          mIndex;
     181                 :   
     182                 : };
     183                 : 
     184               0 : nsNamedGroupEnumerator::nsNamedGroupEnumerator(nsTArray<char*>* inArray)
     185                 : : mGroupArray(inArray)
     186               0 : , mIndex(-1)
     187                 : {
     188               0 : }
     189                 : 
     190               0 : nsNamedGroupEnumerator::~nsNamedGroupEnumerator()
     191                 : {
     192               0 : }
     193                 : 
     194               0 : NS_IMPL_ISUPPORTS1(nsNamedGroupEnumerator, nsISimpleEnumerator)
     195                 : 
     196                 : /* boolean hasMoreElements (); */
     197                 : NS_IMETHODIMP
     198               0 : nsNamedGroupEnumerator::HasMoreElements(bool *_retval)
     199                 : {
     200               0 :   NS_ENSURE_ARG_POINTER(_retval);
     201                 :   
     202               0 :   PRInt32 arrayLen = mGroupArray ? mGroupArray->Length() : 0;
     203               0 :   *_retval = (mIndex < arrayLen - 1); 
     204               0 :   return NS_OK;
     205                 : }
     206                 : 
     207                 : /* nsISupports getNext (); */
     208                 : NS_IMETHODIMP
     209               0 : nsNamedGroupEnumerator::GetNext(nsISupports **_retval)
     210                 : {
     211               0 :   NS_ENSURE_ARG_POINTER(_retval);
     212                 : 
     213               0 :   if (!mGroupArray)
     214               0 :     return NS_ERROR_FAILURE;
     215                 : 
     216               0 :   mIndex ++;
     217               0 :   if (mIndex >= PRInt32(mGroupArray->Length()))
     218               0 :     return NS_ERROR_FAILURE;
     219                 :     
     220               0 :   PRUnichar   *thisGroupName = (PRUnichar*)mGroupArray->ElementAt(mIndex);
     221               0 :   NS_ASSERTION(thisGroupName, "Bad Element in mGroupArray");
     222                 :   
     223                 :   nsresult rv;
     224               0 :   nsCOMPtr<nsISupportsString> supportsString = do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID, &rv);
     225               0 :   if (NS_FAILED(rv)) return rv;
     226                 : 
     227               0 :   supportsString->SetData(nsDependentString(thisGroupName));
     228               0 :   return CallQueryInterface(supportsString, _retval);
     229                 : }
     230                 : 
     231                 : #if 0
     232                 : #pragma mark -
     233                 : #endif
     234                 : 
     235                 : 
     236                 : /* Implementation file */
     237               0 : NS_IMPL_ISUPPORTS1(nsControllerCommandGroup, nsIControllerCommandGroup)
     238                 : 
     239               0 : nsControllerCommandGroup::nsControllerCommandGroup()
     240                 : {
     241               0 : }
     242                 : 
     243               0 : nsControllerCommandGroup::~nsControllerCommandGroup()
     244                 : {
     245               0 :   ClearGroupsHash();
     246               0 : }
     247                 : 
     248                 : void
     249               0 : nsControllerCommandGroup::ClearGroupsHash()
     250                 : {
     251               0 :     mGroupsHash.Reset(ClearEnumerator, (void *)this);
     252               0 : }
     253                 : 
     254                 : #if 0
     255                 : #pragma mark -
     256                 : #endif
     257                 : 
     258                 : /* void addCommandToGroup (in DOMString aCommand, in DOMString aGroup); */
     259                 : NS_IMETHODIMP
     260               0 : nsControllerCommandGroup::AddCommandToGroup(const char * aCommand, const char *aGroup)
     261                 : {
     262               0 :   nsCStringKey   groupKey(aGroup);  
     263                 :   nsTArray<char*>* commandList;
     264               0 :   if ((commandList = (nsTArray<char*> *)mGroupsHash.Get(&groupKey)) == nsnull)
     265                 :   {
     266                 :     // make this list
     267               0 :     commandList = new nsAutoTArray<char*, 8>;
     268               0 :     mGroupsHash.Put(&groupKey, (void *)commandList);
     269                 :   }
     270                 :   // add the command to the list. Note that we're not checking for duplicates here
     271               0 :   char* commandString = NS_strdup(aCommand); // we store allocated PRUnichar* in the array
     272               0 :   if (!commandString) return NS_ERROR_OUT_OF_MEMORY;
     273                 :   
     274                 : #ifdef DEBUG
     275                 :   char** appended =
     276                 : #endif
     277               0 :     commandList->AppendElement(commandString);
     278               0 :   NS_ASSERTION(appended, "Append failed");
     279                 : 
     280               0 :   return NS_OK;
     281                 : }
     282                 : 
     283                 : /* void removeCommandFromGroup (in DOMString aCommand, in DOMString aGroup); */
     284                 : NS_IMETHODIMP
     285               0 : nsControllerCommandGroup::RemoveCommandFromGroup(const char * aCommand, const char * aGroup)
     286                 : {
     287               0 :   nsCStringKey   groupKey(aGroup);
     288               0 :   nsTArray<char*>* commandList = (nsTArray<char*> *)mGroupsHash.Get(&groupKey);
     289               0 :   if (!commandList) return NS_OK;     // no group
     290                 : 
     291               0 :   PRUint32 numEntries = commandList->Length();
     292               0 :   for (PRUint32 i = 0; i < numEntries; i ++)
     293                 :   {
     294               0 :     char*  commandString = commandList->ElementAt(i);
     295               0 :     if (!nsCRT::strcmp(aCommand,commandString))
     296                 :     {
     297               0 :       commandList->RemoveElementAt(i);
     298               0 :       nsMemory::Free(commandString);
     299               0 :       break;
     300                 :     }
     301                 :   }
     302                 : 
     303               0 :   return NS_OK;
     304                 : }
     305                 : 
     306                 : /* boolean isCommandInGroup (in DOMString aCommand, in DOMString aGroup); */
     307                 : NS_IMETHODIMP
     308               0 : nsControllerCommandGroup::IsCommandInGroup(const char * aCommand, const char * aGroup, bool *_retval)
     309                 : {
     310               0 :   NS_ENSURE_ARG_POINTER(_retval);
     311               0 :   *_retval = false;
     312                 :   
     313               0 :   nsCStringKey   groupKey(aGroup);
     314               0 :   nsTArray<char*>* commandList = (nsTArray<char*> *)mGroupsHash.Get(&groupKey);
     315               0 :   if (!commandList) return NS_OK;     // no group
     316                 :   
     317               0 :   PRUint32 numEntries = commandList->Length();
     318               0 :   for (PRUint32 i = 0; i < numEntries; i ++)
     319                 :   {
     320               0 :     char*  commandString = commandList->ElementAt(i);
     321               0 :     if (!nsCRT::strcmp(aCommand,commandString))
     322                 :     {
     323               0 :       *_retval = true;
     324               0 :       break;
     325                 :     }
     326                 :   }
     327               0 :   return NS_OK;
     328                 : }
     329                 : 
     330                 : /* nsISimpleEnumerator getGroupsEnumerator (); */
     331                 : NS_IMETHODIMP
     332               0 : nsControllerCommandGroup::GetGroupsEnumerator(nsISimpleEnumerator **_retval)
     333                 : {
     334               0 :   nsGroupsEnumerator*   groupsEnum = new nsGroupsEnumerator(mGroupsHash);
     335               0 :   if (!groupsEnum) return NS_ERROR_OUT_OF_MEMORY;
     336                 : 
     337               0 :   return groupsEnum->QueryInterface(NS_GET_IID(nsISimpleEnumerator), (void **)_retval);
     338                 : }
     339                 : 
     340                 : /* nsISimpleEnumerator getEnumeratorForGroup (in DOMString aGroup); */
     341                 : NS_IMETHODIMP
     342               0 : nsControllerCommandGroup::GetEnumeratorForGroup(const char * aGroup, nsISimpleEnumerator **_retval)
     343                 : {
     344               0 :   nsCStringKey   groupKey(aGroup);  
     345               0 :   nsTArray<char*>* commandList = (nsTArray<char*> *)mGroupsHash.Get(&groupKey); // may be null
     346                 : 
     347               0 :   nsNamedGroupEnumerator*   theGroupEnum = new nsNamedGroupEnumerator(commandList);
     348               0 :   if (!theGroupEnum) return NS_ERROR_OUT_OF_MEMORY;
     349                 : 
     350               0 :   return theGroupEnum->QueryInterface(NS_GET_IID(nsISimpleEnumerator), (void **)_retval);
     351                 : }
     352                 : 
     353                 : #if 0
     354                 : #pragma mark -
     355                 : #endif
     356                 :  
     357               0 : bool nsControllerCommandGroup::ClearEnumerator(nsHashKey *aKey, void *aData, void* closure)
     358                 : {
     359               0 :   nsTArray<char*>* commandList = (nsTArray<char*> *)aData;
     360               0 :   if (commandList)
     361                 :   {  
     362               0 :     PRUint32 numEntries = commandList->Length();
     363               0 :     for (PRUint32 i = 0; i < numEntries; i ++)
     364                 :     {
     365               0 :       char* commandString = commandList->ElementAt(i);
     366               0 :       nsMemory::Free(commandString);
     367                 :     }
     368                 :     
     369               0 :     delete commandList;
     370                 :   }
     371                 : 
     372               0 :   return true;
     373                 : }

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