1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17 #include "tstaskmonitor_p.h"

    18 #include "tstaskmonitor.h"

    19 

    20 #include <eikenv.h>

    21 #include <fbs.h>

    22 #include <s32mem.h>

    23 

    24 #include <XQConversions>

    25 

    26 #include "tstaskmonitorclient.h"

    27 #include "tstask.h"

    28 #include "tstaskcontent.h"

    29 #include "tstaskchangeinfo.h"

    30 #include "tsutils.h"

    31 #include "tstaskmonitorhistory.h"

    32 using TaskSwitcher::CleanupResetAndDestroyPushL;

    33 

    34 TsTaskMonitorPrivate::TsTaskMonitorPrivate(TsTaskMonitor *q) : q_ptr(q), mClient(0), mWsSession(CEikonEnv::Static()->WsSession())

    35 {

    36     QT_TRAP_THROWING(mClient = CTsTaskMonitorClient::NewL());

    37     mClient->Subscribe(*this);

    38 }

    39 

    40 TsTaskMonitorPrivate::~TsTaskMonitorPrivate()

    41 {

    42     mClient->CancelSubscribe();

    43     delete mClient;

    44 }

    45 

    46 

    47 QList<TsTaskChange> TsTaskMonitorPrivate::changeList(bool fullList)

    48 {

    49     QList<TsTaskChange> retVal;

    50      

    51     QT_TRAP_THROWING (

    52 

    53         HBufC8 *data = mClient->TasksContentLC();

    54         if (data->Size() == 0) {

    55             CleanupStack::PopAndDestroy(data);

    56             return retVal;

    57         }

    58         TPtr8 dataPointer(data->Des());

    59         RDesReadStream dataStream(dataPointer);

    60         CleanupClosePushL(dataStream);

    61 

    62         int count = dataStream.ReadInt32L();

    63 

    64         QT_TRYCATCH_LEAVING(

    65             QList< QSharedPointer<TsTaskContent> > taskList;

    66             QList<TsTaskMonitorHistory> newTaskHistory;

    67             for (int iter(0); iter < count; iter++) {

    68                 QSharedPointer<TsTaskContent> content(new TsTaskContent);

    69                 TsTaskMonitorHistory newHistoryItem = internalizeContentL(dataStream, content);

    70                 newHistoryItem.setOffset(iter);

    71                 newTaskHistory.append(newHistoryItem);

    72                 taskList.append(content);

    73             }

    74             if (fullList) {

    75                 mTaskHistory.clear();

    76             }

    77             QList<int> insertsList = findInserts(newTaskHistory);

    78             QList<int> deletesList = findDeletes(newTaskHistory);

    79             QList<TsTaskMonitorHistory> newMinusInserts;

    80             if (insertsList.count() > 0 ) {

    81                 newMinusInserts = substractInsertsFromNew(insertsList, newTaskHistory);

    82             } else {

    83                 newMinusInserts = newTaskHistory;

    84             }

    85             QList<TsTaskMonitorHistory> interimList;

    86             if (deletesList.count() > 0 ) {

    87                 retVal.append(getDeletesChangeset(deletesList));

    88                 interimList = substractDeletesFromOld(deletesList);

    89             } else {

    90                 interimList = mTaskHistory;

    91             }

    92             retVal.append(findMovesAndUpdates(newMinusInserts, taskList, interimList));

    93             if (mTaskHistory.isEmpty()) {

    94                 retVal.append(TsTaskChange(TsTaskChangeInfo(), QSharedPointer<TsTask>()));

    95             }

    96             retVal.append(getInsertsChangeset(insertsList, taskList));

    97             mTaskHistory = newTaskHistory;

    98         )//QT_TRYCATCH_LEAVING

    99         CleanupStack::PopAndDestroy(&dataStream);

   100         CleanupStack::PopAndDestroy(data);

   101     );//QT_TRAP_THROWING

   102        

   103     return retVal;

   104 }

   105 

   106 TsTaskMonitorHistory TsTaskMonitorPrivate::internalizeContentL(RDesReadStream &  dataStream,

   107                                     QSharedPointer<TsTaskContent> &content)

   108 {

   109     // get name

   110     TInt nameLength(dataStream.ReadInt32L());

   111     if (0 < nameLength) {

   112         HBufC* name = HBufC::NewLC(dataStream, nameLength);

   113         content->mName = XQConversions::s60DescToQString(*name);

   114         CleanupStack::PopAndDestroy(name);

   115     }

   116     TPckgBuf<TTime> updateTime;

   117     dataStream.ReadL(updateTime);

   118     QDateTime historyTime =  dateTimeFromS60(updateTime());

   119     

   120     // get screenshot

   121     TInt screenshotHandle = dataStream.ReadInt32L();

   122     CFbsBitmap *screenshot = new (ELeave) CFbsBitmap;

   123     CleanupStack::PushL(screenshot);

   124     if (KErrNone == screenshot->Duplicate(screenshotHandle)) {

   125         content->mScreenshot = QPixmap::fromSymbianCFbsBitmap(screenshot);

   126     }

   127     CleanupStack::PopAndDestroy(screenshot);

   128     // get key

   129     TInt keyLength(dataStream.ReadInt32L());

   130     if (0 < keyLength) {

   131         HBufC8* key = HBufC8::NewLC(keyLength);

   132         TPtr8 des(key->Des());

   133         dataStream.ReadL(des, keyLength);

   134         content->mKey = XQConversions::s60Desc8ToQByteArray(*key);

   135         CleanupStack::PopAndDestroy(key);

   136     }

   137     // get other values

   138     content->mActive = dataStream.ReadInt32L();

   139     content->mClosable = dataStream.ReadInt32L();  

   140     return TsTaskMonitorHistory(content->mKey, historyTime);

   141 }

   142 

   143 QDateTime TsTaskMonitorPrivate::dateTimeFromS60(const TTime &s60Time)

   144 {

   145     TTime posixEpoch(_L("19700000:"));

   146     TTimeIntervalSeconds secondsFrom;

   147     TTimeIntervalMicroSeconds microSecondsFrom;

   148     s60Time.SecondsFrom(posixEpoch, secondsFrom);

   149     microSecondsFrom = s60Time.MicroSecondsFrom(posixEpoch);

   150     QDateTime retVal = QDateTime::fromTime_t(secondsFrom.Int());

   151     retVal = retVal.addMSecs((microSecondsFrom.Int64() % TInt64(1000000) ) / TInt64(1000));

   152     return retVal;    

   153 }

   154 

   155 int TsTaskMonitorPrivate::findItemIndex(

   156                           const QList<TsTaskMonitorHistory> &historyList,

   157                           const TsTaskMonitorHistory &item )

   158 {

   159     for (int iter(0); iter < historyList.count(); iter++) {

   160         if(historyList[iter].isEqual(item)) {

   161             return iter;

   162         }

   163     }

   164     return -1;

   165 }

   166 

   167 QList<int>  TsTaskMonitorPrivate::findInserts(

   168                                  const QList<TsTaskMonitorHistory> &newHistory)

   169 {

   170     QList<int> retVal = QList<int>();

   171     for (int iter(0); iter < newHistory.count(); iter++) {

   172         if (findItemIndex(mTaskHistory, newHistory[iter]) == -1) {

   173             retVal.append(iter);

   174         }

   175     }

   176     return retVal;

   177 }

   178 

   179 QList<int> TsTaskMonitorPrivate::findDeletes(

   180                                  const QList<TsTaskMonitorHistory> &newHistory)

   181 {

   182     QList<int> retVal = QList<int>();

   183     //iterate backwards to keep order during model operations

   184     for (int iter(mTaskHistory.count() -1); iter >= 0 ; iter--) {

   185         if (findItemIndex(newHistory, mTaskHistory[iter]) == -1) {

   186             retVal.append(iter);

   187         }

   188     }

   189     return retVal;    

   190 }

   191 

   192 QList<TsTaskChange> TsTaskMonitorPrivate::getDeletesChangeset(

   193                                                       const QList<int> &deleteList)

   194 {

   195     QList<TsTaskChange> retVal;

   196     foreach (int index, deleteList) {

   197         TsTaskChangeInfo deleteChange(TsTaskChangeInfo::KInvalidOffset,

   198                                                                    index);

   199         retVal.append(TsTaskChange(deleteChange, QSharedPointer<TsTask>()));

   200     }

   201     return retVal;

   202 }

   203 

   204 QList<TsTaskChange> TsTaskMonitorPrivate::getInsertsChangeset(const QList<int> &insertList,

   205                                         const QList< QSharedPointer<TsTaskContent> > &taskList)

   206 {

   207     QList<TsTaskChange> retVal;

   208     foreach (int index, insertList) {

   209         TsTaskChangeInfo insertChange(index,

   210                                  TsTaskChangeInfo::KInvalidOffset);

   211         retVal.append(TsTaskChange(

   212                             insertChange,

   213                             QSharedPointer<TsTask>(new TsTask(taskList[index], *this))));

   214     }

   215     return retVal;

   216 }

   217 

   218 QList<TsTaskMonitorHistory> TsTaskMonitorPrivate::substractInsertsFromNew(

   219                                       const QList<int> &insertList,

   220                                       const QList<TsTaskMonitorHistory> &newHistory )

   221 {

   222     QList<TsTaskMonitorHistory> retVal(newHistory);

   223     for ( int iter(insertList.count() - 1); iter >= 0 ; iter--) {

   224         retVal.removeAt(insertList[iter]);

   225     }

   226     return retVal;

   227 }

   228 

   229 QList<TsTaskMonitorHistory> TsTaskMonitorPrivate::substractDeletesFromOld(

   230                                       const QList<int> &deleteList)

   231 {

   232     QList<TsTaskMonitorHistory> retVal(mTaskHistory);  

   233     for (int iter(0); iter < deleteList.count() ; iter++) {

   234         retVal.removeAt(deleteList[iter]);

   235     }

   236     return retVal;

   237 }

   238 

   239 QList<TsTaskChange> TsTaskMonitorPrivate::findMovesAndUpdates( 

   240                                      const QList<TsTaskMonitorHistory> &newMinusInserts,

   241                                      const QList< QSharedPointer<TsTaskContent> > &taskList,

   242                                      QList<TsTaskMonitorHistory> &workingList)

   243 {

   244     QList<TsTaskChange> retVal;

   245     for (int newPos(0); newPos < newMinusInserts.count(); newPos++) {

   246         //case 1 item has moved

   247         int previousPos = findItemIndex(workingList, newMinusInserts[newPos]);

   248         if (newPos != previousPos) {

   249             TsTaskChangeInfo moveChange(newPos, previousPos);

   250             retVal.append(

   251                 TsTaskChange(moveChange, QSharedPointer<TsTask>()));

   252             workingList.move(previousPos, newPos);

   253         }

   254         // case 2 item has changed

   255         if (newMinusInserts[newPos].isUpdated(workingList[newPos])) {

   256             TsTaskChangeInfo updateChange(newPos, newPos);

   257             int taskListOffset = newMinusInserts[newPos].offset();

   258             retVal.append( TsTaskChange(

   259                               updateChange,

   260                               QSharedPointer<TsTask>(new TsTask(taskList[taskListOffset], *this)))); 

   261         }

   262     }

   263     return retVal;

   264 }

   265 

   266 void TsTaskMonitorPrivate::HandleRunningAppChange()

   267 {

   268     emit q_ptr->taskListChanged();

   269 }

   270 

   271 void TsTaskMonitorPrivate::openTask(const QByteArray &key)

   272 {

   273     TPtrC8 desC(reinterpret_cast<const TUint8*>(key.constData()), key.length());

   274     mClient->OpenTask(desC);

   275     

   276 }

   277 

   278 void TsTaskMonitorPrivate::closeTask(const QByteArray &key)

   279 {

   280     TPtrC8 desC(reinterpret_cast<const TUint8*>(key.constData()), key.length());

   281     mClient->CloseTask(desC);

   282 }