defaultapplicationsettings/server/src/das_servmimeapps.cpp
changeset 0 254040eb3b7d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/defaultapplicationsettings/server/src/das_servmimeapps.cpp	Thu Dec 17 08:46:07 2009 +0200
@@ -0,0 +1,1073 @@
+/*
+* Copyright (c) 2005-2006 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0""
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Keeps info about Services, MIMEs and Applications
+*
+*/
+
+
+// System includes
+#include <e32def.h> // STATIC_CAST
+#include <defaultappserver.rsg> // R_DAS_SERVICESMIMES_LISTBOX
+#include <StringLoader.h> // StringLoader
+#include <barsread.h> //TResourceRead
+#include <eikenv.h> //CEikonEnv
+#include <apgcli.h>
+#include <apgicnfl.h> // CApaMaskedBitmap
+
+#include <serviceregistry.h>
+
+#include "das_servmimeapps.h"
+#include "das_app.h" // KUidDefaultAppServer
+#include <services_db.h>
+
+#ifndef SYMBIAN_ENABLE_SPLIT_HEADERS
+#include <apmstd.h>
+#else
+#include <apmstd.h>
+#include <apmfndr.h> // KDataTypePrioritySystem
+#endif
+
+const TInt KStringMargin = 10; //10 is a sufficiently large margin
+
+// ======== MEMBER FUNCTIONS ======== CAppHelper
+
+// ---------------------------------------------------------------------------
+// Symbian 2-phased constructor
+// ---------------------------------------------------------------------------
+// 
+CAppHelper* CAppHelper::NewLC(const TDesC& aName, const TInt aUid)
+    {
+    CAppHelper* self = new (ELeave) CAppHelper(aUid,0);
+    CleanupStack::PushL(self);
+    //construct iName, copy it
+    self->iName = HBufC::NewL(aName.Size());
+    TPtr* ptr=new (ELeave) TPtr(self->iName->Des());
+    ptr->Copy(aName);
+    delete ptr;
+    
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// Symbian 2-phased constructor
+// ---------------------------------------------------------------------------
+//     
+CAppHelper* CAppHelper::NewLC(const CAppHelper& aApp)
+    {
+    CAppHelper* self = new (ELeave) CAppHelper(aApp.iUid,1,aApp.iFlags);
+    CleanupStack::PushL(self);
+    //construct iName, get pointer and flag it
+    self->iName = aApp.iName;
+    self->iFlags |= EFlagNameNotOwned;
+    return self;
+    }
+ 
+// ---------------------------------------------------------------------------
+// C++ Constructor
+// ---------------------------------------------------------------------------
+//     
+CAppHelper::CAppHelper(const TInt aUid, const TInt aScore, const TInt aFlags):
+    iName(NULL), iUid(aUid), iScore(aScore), iFlags(aFlags)
+    {
+    //no implementation needed
+    }
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//    
+CAppHelper::~CAppHelper(void)
+    {
+    if(!( iFlags&EFlagNameNotOwned ))
+        delete iName;
+    iName = NULL;
+    }
+// ---------------------------------------------------------------------------
+// This function is used to order Applications
+// ---------------------------------------------------------------------------
+//  
+TInt CAppHelper::OrderApplications(const CAppHelper& a1, const CAppHelper& a2)
+    {
+    //if a1<a2 return -1, otherwise 0 or 1
+    //platform applications are always first (smaller)
+    if(a1.iFlags&EFlagPlatformApp && !(a2.iFlags&EFlagPlatformApp))
+        return -1; //a1 is platform app, a2 is not
+    if(!(a1.iFlags&EFlagPlatformApp) && a2.iFlags&EFlagPlatformApp)
+        return 1; //a1 is not platform app, a2 is
+    
+    //look into names names
+    if(*a1.iName < *a2.iName) return -1;
+    if(*a1.iName > *a2.iName) return 1;
+    //if we are here, strings were equal
+    return 0;
+    }
+
+    
+// ======== MEMBER FUNCTIONS ======== CServiceMime
+
+// ---------------------------------------------------------------------------
+// C++ Constructor
+// ---------------------------------------------------------------------------
+//     
+CServiceMime::CServiceMime() : iServiceMime(NULL), iMime(NULL)
+    {
+    iDefaultAppUid=TUid::Uid(0);
+    iDefaultApp=-1;//currently we do not know the default index
+    iUsedByTasks=EFalse;
+    }
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//
+CServiceMime::~CServiceMime()
+    {
+    if (iServiceMime) delete iServiceMime;
+    if (iMime) delete iMime;
+    for (TInt i=0 ; i<iApplications.Count() ; i++)
+        delete iApplications[i];
+    iApplications.Close();
+    }
+    
+// ---------------------------------------------------------------------------
+// This function is used to order Services & MIMEs
+// ---------------------------------------------------------------------------
+//  
+TInt CServiceMime::OrderServiceMimes(const CServiceMime& a1, const CServiceMime& a2)
+    {
+    //if a1<a2 return -1, otherwise 0 or 1
+    //we sort by the MIME, then by the service
+    if(*a1.iMime<*a2.iMime)return -1;
+    if(*a1.iMime>*a2.iMime)return 1;
+    //if we are here, MIMEs are the same
+    if(*a1.iServiceMime<*a2.iServiceMime)return -1;
+    if(*a1.iServiceMime>*a2.iServiceMime)return 1;
+    //if we are here, strings were equal
+    return 0;
+    }
+
+// ======== MEMBER FUNCTIONS ======== CMediaTask
+
+// ---------------------------------------------------------------------------
+// Symbian 2-phased constructor
+// ---------------------------------------------------------------------------
+// 
+CMediaTask* CMediaTask::NewLC( TResourceReader& aReader )
+    {
+    CMediaTask* self = new (ELeave) CMediaTask();
+    CleanupStack::PushL(self);
+    self->ConstructL(aReader);
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//    
+CMediaTask::~CMediaTask()
+    {
+    
+    if(iTaskList)delete iTaskList;
+    if(iTaskTitle)delete iTaskTitle;
+    
+    if(iMimeLabel)delete iMimeLabel;
+    
+    iMimes.ResetAndDestroy();
+    iServicesUids.Close();
+    
+    iSMs.Close();//elements not owned
+    
+    iApplications.ResetAndDestroy();
+    }
+
+// ---------------------------------------------------------------------------
+// C++ Constructor
+// ---------------------------------------------------------------------------
+// 
+CMediaTask::CMediaTask() : iMimeLabel(NULL), iDefaultApp(-1)
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// The construction means reading the task details from the resource file
+// ---------------------------------------------------------------------------
+//    
+void CMediaTask::ConstructL( TResourceReader& aReader )
+    {
+    TInt i,count;
+    //read the task name
+    iTaskList = aReader.ReadHBufCL();
+    if( !iTaskList )User::Leave(KErrArgument);
+    
+    //read the task title
+    iTaskTitle = aReader.ReadHBufCL();
+    if( !iTaskTitle )User::Leave(KErrArgument);
+    
+    //read the mime label
+    iMimeLabel = aReader.ReadHBufC8L();
+    if( !iMimeLabel )User::Leave(KErrArgument);
+    
+    //read the service mimes entries
+    count = aReader.ReadInt16();
+    for (i=0; i<count; i++)
+        {
+        //read the service uid
+        TInt uid=aReader.ReadInt32();
+        if(uid == 0)User::Leave(KErrArgument);
+        //read the mime
+        HBufC8* mime=aReader.ReadHBufC8L();
+        if( !mime )User::Leave(KErrArgument);
+        //append both things
+        iServicesUids.Append(uid);
+        iMimes.Append(mime);//takes ownership
+        }
+    }
+    
+    
+// ======== MEMBER FUNCTIONS ======== CDefaultAppServMimeApps
+
+// ---------------------------------------------------------------------------
+// Symbian 2-phased constructor
+// ---------------------------------------------------------------------------
+// 
+CDefaultAppServMimeApps* CDefaultAppServMimeApps::NewL(const TUid& aAppUid, TInt aServiceFlags)
+    {
+    CDefaultAppServMimeApps* self = CDefaultAppServMimeApps::NewLC(aAppUid, aServiceFlags);
+    CleanupStack::Pop(self);
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// Symbian 2-phased constructor
+// ---------------------------------------------------------------------------
+// 
+CDefaultAppServMimeApps* CDefaultAppServMimeApps::NewLC(const TUid& aAppUid, TInt aServiceFlags)
+    {
+    CDefaultAppServMimeApps* self = new (ELeave) CDefaultAppServMimeApps();
+    CleanupStack::PushL(self);
+    self->ConstructL(aAppUid, aServiceFlags);
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// This function builds the data structures for the dialog:
+// It reads the considered services from the resource files, then it builds the
+// task list and the associated list of Services& MIMEs and applications.
+// ---------------------------------------------------------------------------
+//
+void CDefaultAppServMimeApps::ConstructL(TUid aAppUid, TInt aServiceFlags)
+    {
+    //set the client app uid
+    /* Uncomment this for testing the General Settings (Control Pannel) specific view from another application (R&D purpose)
+     * 
+    TBool flagGsClient = aServiceFlags & EFlagGsClient;
+    if(flagGsClient)aAppUid=KUidGS; //we mimic the GS Client. 
+    */
+    iAppUid = aAppUid;
+    
+    //for all the available services, launch the AddMIMEsForServiceL function
+    TResourceReader reader;
+    CEikonEnv::Static()->CreateResourceReaderLC( reader, R_DA_SERVICE_MIME );
+    CServicesDB* sdb = CServicesDB::NewLC(&reader);
+    TInt i;
+    TUid uid;
+    for(i=0; i<sdb->Count(); i++)
+        {
+        uid = sdb->ServiceUidL(i);
+        AddMIMEsForServiceL(uid,i,aServiceFlags,sdb);
+        };
+    CleanupStack::PopAndDestroy(sdb);
+    CleanupStack::PopAndDestroy( ); // reader
+    //change MIMEs & sort
+    BeautifyAndSortServMimeApps();
+    }
+    
+// ---------------------------------------------------------------------------
+// this is by far the most complicated function in the entire subsystem
+// some more comments are needed, but after this function will be split in 2
+// ---------------------------------------------------------------------------
+//
+void CDefaultAppServMimeApps::AddMIMEsForServiceL(TUid aServiceUid, TInt aServiceIndex, TInt aServiceFlags, CServicesDB* aServicesDb)
+    {
+    CServiceMime *sm = NULL;
+    TUid uid;
+    
+    RApaLsSession ls;
+    TApaAppInfo info;
+    CApaAppServiceInfoArray* serv=NULL;
+    CServiceRegistry *sr=NULL;
+    TInt i,j,k;
+    TInt it,jt;//indexes for iterating inside tasks
+    TInt lowerMarker, upperMarker;
+    //flags
+    TBool flagShowAll = EFalse;
+    /*
+     * Uncomment the line below to show all the Services & MIMEs in views, and not only those for which default app can be changed.
+     * This can be used for R&D, to see all the MIMEs&Services in the system.
+    flagShowAll = aServiceFlags & EFlagShowAllServicesAndMimes;
+     */
+    iFlagNoObserver = aServiceFlags & EFlagNoObserver;
+    
+    //check who is connecting, so that we can set the view
+    if(iAppUid == KUidGS)
+        {
+        iSimplifiedView=ETrue; //at least in the beginning. 
+                               //For this function, this is also a flag that says if we have GS as client or not
+        GetTaskListL(R_DA_TASKS);
+        }
+    else iSimplifiedView=EFalse;
+        
+    //connect
+    User::LeaveIfError( ls.Connect() );
+    CleanupClosePushL( ls );
+    
+    //Get all the apps and MIMEs for the current service
+    ls.GetAppInfo(info,iAppUid);
+    serv=ls.GetServiceImplementationsLC(aServiceUid);
+    lowerMarker = upperMarker = iServMimes.Count();
+    //create entries for the MIMEs supported by the client application
+    for (i=0; i<serv->Array().Count(); i++)
+        {
+        uid=serv->Array()[i].Uid();
+        if( iSimplifiedView || uid == iAppUid) //this means that for app clients, we first skip all the other applications
+            {
+            //if iSimplifiedView is true, then we have GS as a client    
+            for(j=0; j<serv->Array()[i].DataTypes().Count(); j++)
+                {
+                TBool createSM=ETrue;
+                if(iSimplifiedView)
+                    {
+                    //check if we already have an entry for this service & MIME
+                    for(k=lowerMarker; k<upperMarker; k++)
+                        if(iServMimes[k]->iMime->Des() == serv->Array()[i].DataTypes()[j].iDataType.Des8())
+                            {
+                            //we found it!
+                            sm=iServMimes[k];
+                            createSM=EFalse;
+                            break;//we found the sm, no need to search for it any more
+                            }
+                    //if we don't find it, we will create an entry ...
+                    }
+            
+                if(createSM)
+                    {
+                    //we have to create sm, we did not found it previously (or we were not looking for it)
+                    sm=new (ELeave) CServiceMime;
+                    CleanupStack::PushL(sm);
+                    sm->iMime = HBufC8::NewL(serv->Array()[i].DataTypes()[j].iDataType.Des8().Size());
+                    *(sm->iMime) = serv->Array()[i].DataTypes()[j].iDataType.Des8();
+                    //transform the MIME from audio/mpeg to audio mpeg
+                    HBufC *transformedMime=HBufC::NewLC(serv->Array()[i].DataTypes()[j].iDataType.Des().Size());
+                    TPtr *ptr=new (ELeave) TPtr(transformedMime->Des());
+                    CleanupStack::PushL(ptr);
+                    ptr->Copy(serv->Array()[i].DataTypes()[j].iDataType.Des());
+                    TInt location=ptr->Locate('/');
+                    if(location>0)ptr->Replace(location,1,_L(" "));
+                    //transforming done
+                    //sm->iServiceMime = aServicesDb->ServiceStringLC(aServiceIndex, serv->Array()[i].DataTypes()[j].iDataType.Des());
+                    sm->iServiceMime = aServicesDb->ServiceStringLC(aServiceIndex, transformedMime->Des());
+                    CleanupStack::Pop(sm->iServiceMime);
+                    CleanupStack::PopAndDestroy(ptr);
+                    CleanupStack::PopAndDestroy(transformedMime);
+                    //StringLoader::LoadL( R_DA_SERVICE_OPEN, serv->Array()[i].DataTypes()[j].iDataType.Des());
+                    sm->iServiceUid=aServiceUid;
+                    }
+            
+                //insert the client application
+                InsertApplicationL(*sm, uid, serv->Array()[i].DataTypes()[j].iPriority, &ls);
+            
+                //get the Uid of the default application for this service and MIME
+                ls.AppForDataType(serv->Array()[i].DataTypes()[j].iDataType,sm->iDefaultAppUid);
+                
+                if(createSM)
+                    {
+                    //sm was created this iteration, ad it.
+                    iServMimes.AppendL(sm);//takes ownership of sm
+                    upperMarker++;
+                    CleanupStack::Pop(sm);
+                
+                    }
+                }//for
+                /*
+                 * If a service that has no MIME will be considered, some code must be added (probably in this place)
+                 */
+            }//if (
+        
+        }
+    __ASSERT_DEBUG(upperMarker == iServMimes.Count(), User::Panic( _L("upperMarker bad value"), 1));
+    
+    if(sr)
+        {
+        //we do not need it any more
+        delete sr;
+        sr=NULL;
+        }
+    if(lowerMarker == upperMarker)
+        {
+        //current app does not support any MIME for the current service, clean and get out of here
+        CleanupStack::PopAndDestroy(serv);
+        CleanupStack::PopAndDestroy();  // closes RApaLsSession
+        return;
+        }
+        
+    if(!iSimplifiedView)
+        {
+        //if we are here, we have MIMEs for the current service
+        //iterate once more and add applications for MIMEs already in the list
+        for (i=0; i<serv->Array().Count(); i++)
+            {
+            uid=serv->Array()[i].Uid();
+            if( uid == iAppUid) continue; //we don't add our client application once more in the list (it is already there)
+            for(j=0; j<serv->Array()[i].DataTypes().Count(); j++)
+                for(k=lowerMarker; k<upperMarker; k++)
+                    if(iServMimes[k]->iMime->Des() == serv->Array()[i].DataTypes()[j].iDataType.Des8())
+                        {
+                        InsertApplicationL(*(iServMimes[k]), serv->Array()[i].Uid(), serv->Array()[i].DataTypes()[j].iPriority, &ls);
+                        }//if same MIME
+            }
+        }
+        
+    //before deleting some of the entries ...    
+    if(iSimplifiedView)
+        {
+        //check the service & MIMEs against the task list...
+        //first, check the service against task services
+        for(it=0; it<iTasks.Count(); it++)
+            for(jt=0; jt<iTasks[it]->iServicesUids.Count(); jt++)
+                if(aServiceUid.iUid == iTasks[it]->iServicesUids[jt])
+                    {
+                    //lets check if the MIME matches too...
+                    for(k=lowerMarker; k<upperMarker; k++)
+                        if(*iServMimes[k]->iMime == *iTasks[it]->iMimes[jt])
+                            {
+                            //this entry matches an entry in the task list
+                            //add the applications to the list
+                            PopulateTaskWithApplicationsL(*iTasks[it],iServMimes[k]);
+                            //link the sm, if it has more than 1 application
+                            break;//sm found, no need to search for it further
+                            }
+                    }
+        }
+    
+    
+    
+    //iterate from the newly added entries and set the index
+    for(k=lowerMarker; k<upperMarker; k++)
+        {
+        TBool smSetOrRemoved = EFalse;
+        //check for single applications
+        if( iServMimes[k]->iApplications.Count() <2 && !flagShowAll)
+            {
+            //this entry has a single element (that should not be shown)
+            //we either delete it, or move it
+            if(iServMimes[k]->iUsedByTasks)
+                {
+                //the sm is used by tasks, we move it
+                iTaskServMimes.AppendL(iServMimes[k]);//takes ownership of sm
+                }
+            else
+                {
+                //the sm is not used by tasks, we delete it.
+                delete iServMimes[k];
+                }
+            
+            //we remove the entry from the iServMimes (so that it is not shown)
+            iServMimes.Remove(k);
+            k--;
+            upperMarker--;
+            smSetOrRemoved=ETrue;
+            }
+        
+        //set the index
+        if(!smSetOrRemoved)
+            {
+            for(i=0 ; i< iServMimes[k]->iApplications.Count() ; i++)
+                {
+                if(iServMimes[k]->iApplications[i]->iUid == iServMimes[k]->iDefaultAppUid.iUid)
+                    iServMimes[k]->iDefaultApp=i;
+                }
+            }
+        };
+    
+    if(iSimplifiedView)
+    for(it=0; it<iTasks.Count(); it++)
+        if(iTasks[it]->iDefaultAppUid.iUid == 0 && iTasks[it]->iApplications.Count()>0)
+            {
+            //there is no uid, look for the platform App and make it the default
+            for(jt=0; jt<iTasks[it]->iApplications.Count(); jt++)
+                if(iTasks[it]->iApplications[jt]->iFlags & CAppHelper::EFlagPlatformApp)
+                    {
+                    iTasks[it]->iDefaultAppUid.iUid = iTasks[it]->iApplications[jt]->iUid;
+                    iTasks[it]->iDefaultApp=jt;
+                    break;//app found, no need to search for it any longer
+                    };
+                
+            //if no app found, mark the first one as default
+            if(iTasks[it]->iDefaultAppUid.iUid == 0)
+                {
+                iTasks[it]->iDefaultAppUid.iUid = iTasks[it]->iApplications[0]->iUid;
+                iTasks[it]->iDefaultApp = 0;//the index
+                };
+            }
+        else
+            for(jt=0; jt<iTasks[it]->iApplications.Count(); jt++)
+                if(iTasks[it]->iApplications[jt]->iUid == iTasks[it]->iDefaultAppUid.iUid)
+                    {
+                    iTasks[it]->iDefaultApp=jt;
+                    break;//app found, no need to search for it any longer
+                    }
+    
+    //done, destroy serv
+    CleanupStack::PopAndDestroy(serv);
+    CleanupStack::PopAndDestroy( );  // closes RApaLsSession
+    }
+    
+// ---------------------------------------------------------------------------
+// C++ Constructor
+// ---------------------------------------------------------------------------
+//     
+CDefaultAppServMimeApps::CDefaultAppServMimeApps(): iList(4)
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//    
+CDefaultAppServMimeApps::~CDefaultAppServMimeApps()
+    {
+    iServMimes.ResetAndDestroy();
+    iTasks.ResetAndDestroy();
+    iTaskServMimes.ResetAndDestroy();
+    }
+
+// ---------------------------------------------------------------------------
+// This function sorts the Services & MIMEs and their applications. 
+// It also sorts the Serivces & MIMEs associated with tasks
+// ---------------------------------------------------------------------------
+//
+void CDefaultAppServMimeApps::BeautifyAndSortServMimeApps(void)
+    {
+    //first, go through the Services & MIMEs localized names and sort them
+    TLinearOrder<CServiceMime> order(&CServiceMime::OrderServiceMimes);
+    iServMimes.Sort(order);
+    
+    //go through applications and sort them
+    TInt i,j;
+    for(i=0; i<iServMimes.Count(); i++)
+        {
+        TLinearOrder<CAppHelper> order2(&CAppHelper::OrderApplications);
+        iServMimes[i]->iApplications.Sort(order2);
+        //get our app index 
+        for(j=0; j<iServMimes[i]->iApplications.Count(); j++)
+            if(iServMimes[i]->iApplications[j]->iUid == iServMimes[i]->iDefaultAppUid.iUid)
+                iServMimes[i]->iDefaultApp = j;
+        };
+    //if we have tasks, we sort their apps too
+    for(i=0; i<iTasks.Count(); i++)
+        {
+        TLinearOrder<CAppHelper> order2(&CAppHelper::OrderApplications);
+        iTasks[i]->iApplications.Sort(order2);
+        //get our app index 
+        for(j=0; j<iTasks[i]->iApplications.Count(); j++)
+            if(iTasks[i]->iApplications[j]->iUid == iTasks[i]->iDefaultAppUid.iUid)
+                iTasks[i]->iDefaultApp = j;
+        };
+    }
+
+
+// ---------------------------------------------------------------------------
+// This function reads from the resource file the list of tasks (and associated data). 
+// This function is used during construction
+// ---------------------------------------------------------------------------
+//    
+void CDefaultAppServMimeApps::GetTaskListL( TInt aResourceId )
+    {
+    TResourceReader reader;
+    TInt i;
+    CServiceRegistry* sr=CServiceRegistry::NewL();
+    CleanupStack::PushL(sr);
+
+    // Read tasks
+    
+    CEikonEnv::Static()->CreateResourceReaderLC( reader, aResourceId );
+
+    TInt count = reader.ReadInt16();
+    for ( i = 0; i < count; i++ )
+        {
+        CMediaTask* task=CMediaTask::NewLC(reader);
+        // Read the default application for this task ...
+        sr->GetDefault(KOpenServiceUid, *task->iMimeLabel, task->iDefaultAppUid);
+        
+        //add the task to the list
+        iTasks.Append(task);
+        CleanupStack::Pop(task);
+        }
+
+    CleanupStack::PopAndDestroy(); // reader
+    CleanupStack::PopAndDestroy(sr);
+    }
+    
+// ---------------------------------------------------------------------------
+// This function adds a new Application to a list of an Service & Mime object.
+// ---------------------------------------------------------------------------
+//    
+void CDefaultAppServMimeApps::InsertApplicationL(CServiceMime& aServMime, const TUid& aAppUid, const TDataTypePriority& aPrio, const RApaLsSession *aLs)
+    {
+    TBool addIt = ETrue;
+
+    if(aPrio == KDataTypePrioritySystem)
+        {
+        // the application to be inserted has system priority
+        if(aServMime.iDefaultApp == -1)
+            {
+            //we have non-system applications in the list
+            //delete them ...
+            aServMime.iApplications.ResetAndDestroy();
+                          
+            //... and make the default -2 ... (it means single app with system priority)
+            aServMime.iDefaultApp = -2;
+            //... and add our application (after exiting from the "if")
+            }
+        else
+            {
+            //do not delete the applications, but just add our application
+            //...and make the default -3 (it means multiple apps with system priority)
+            aServMime.iDefaultApp = -3;
+            //... and add our application (after exiting from the "if")
+            }
+        }
+    else
+        {
+        // the application to be inserted does NOT have system priority
+        if(aServMime.iDefaultApp < -1)
+            {
+            // there are only System apps in the list, do not add ours
+            addIt = EFalse;
+            }
+        // else there are normal applications in the list, insert ours, as well
+        }
+    //add the application to the list
+    if(addIt)
+        {
+        TApaAppInfo info;
+        aLs->GetAppInfo(info,aAppUid);
+        //find the best name for the application
+        CAppHelper *app = NULL;
+        if(info.iCaption.Size() != 0)
+            {
+            //this is for now, the preferred name
+            app = CAppHelper::NewLC(info.iCaption, aAppUid.iUid);
+            }
+        else
+            {
+            //fall-back name
+            app = CAppHelper::NewLC(info.iShortCaption, aAppUid.iUid);
+            };
+        //is the app platform application??
+        if (info.iFullName.Left(1) == _L("Z") || 
+            info.iFullName.Left(1) == _L("z")) 
+            app->iFlags |= CAppHelper::EFlagPlatformApp;
+        //append the name
+        aServMime.iApplications.AppendL(app);
+        CleanupStack::Pop(app);
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// This function takes a task and a Service & MIME object. It checks all the applications that support the given
+// Service & MIME object (from its list). If an application is not in the task's application list, this function adds 
+// it there, with a score of 1. If the application is already in the list, then its score is incremented.
+// The Service & MIME object is also marked as being used by a task.
+// ---------------------------------------------------------------------------
+//    
+void CDefaultAppServMimeApps::PopulateTaskWithApplicationsL(CMediaTask& aTask,CServiceMime* aServMime)
+    {
+    TInt i,j;
+    TBool found;
+    //add the applications to the list
+    for(i=0; i<aServMime->iApplications.Count(); i++)
+        {
+        found=EFalse;
+        for(j=0; j<aTask.iApplications.Count(); j++)
+            if(aServMime->iApplications[i]->iUid == aTask.iApplications[j]->iUid)
+                {
+                //we found this application...
+                found=ETrue;
+                //... increase its score
+                aTask.iApplications[j]->iScore++;
+                //... and get to the next application
+                break; //application found, no need to search for it any more
+                }
+        //if the application was not found, we have to add it!
+        if(!found)
+            {
+            CAppHelper *app = CAppHelper::NewLC(*aServMime->iApplications[i]);
+            aTask.iApplications.AppendL(app);
+            CleanupStack::Pop(app);
+            }
+        }
+    //mark the sm
+    aServMime->iUsedByTasks=ETrue;
+    //link the sm
+    aTask.iSMs.Append(aServMime);
+    }
+
+// ---------------------------------------------------------------------------
+// This function fills with entries a data structure used by a List Box to display Services & MIMEs or Tasks
+// ---------------------------------------------------------------------------
+//
+void CDefaultAppServMimeApps::GetServicesAndMimesListL(CDesCArray& aServicesAndMimesArray)
+    {
+    TInt i;
+    aServicesAndMimesArray.Reset();
+    if(iSimplifiedView)
+        {
+        for ( i=0 ; i<iTasks.Count() ; i++ )
+            {
+            TDesC* string = GetMediaTaskStringLC(*iTasks[i], ETrue);
+            aServicesAndMimesArray.AppendL (*string);
+            CleanupStack::PopAndDestroy(string);
+            }
+        }
+    else
+        {
+        for ( i=0 ; i<iServMimes.Count() ; i++ )
+            {
+            TDesC* string = GetServiceAndMimeStringLC(*iServMimes[i], ETrue);
+            aServicesAndMimesArray.AppendL (*string);
+            CleanupStack::PopAndDestroy(string);
+            }
+        }
+    
+    }
+    
+// ---------------------------------------------------------------------------
+// This function fills a Popup-list data structure with applications specific to the selected Service & MIME or Task
+// ---------------------------------------------------------------------------
+//    
+void CDefaultAppServMimeApps::GetApplicationsListL(TInt aIndex, CDesCArray& aApplicationsArray, HBufC*& aTitle)
+    {
+    // Strings will be of the format "1\tApplication"
+    _LIT (KStringAppsDefault, "1\t");
+    _LIT (KStringAppsNonDefault, "0\t");
+    
+    TInt bufLen=20;
+    HBufC *string=HBufC::NewLC(bufLen);
+    HBufC *newString=NULL;
+    TInt i,len;
+    RPointerArray<CAppHelper> *apps=NULL;
+    
+    //get the proper list
+    if(iSimplifiedView)
+        apps = &(iTasks[aIndex]->iApplications);
+    else
+        apps = &(iServMimes[aIndex]->iApplications);
+    
+    for ( i=0 ; i<apps->Count() ; i++ )
+        {
+        len=(*apps)[i]->iName->Size() + KStringMargin ;
+        if(len>bufLen)
+            {
+            newString=string->ReAllocL(len);
+            if(newString != string)
+                {
+                CleanupStack::Pop(string);//already destroyed
+                string=newString;
+                CleanupStack::PushL(string);
+                }
+            bufLen=len;
+            newString=NULL;
+            }
+        //copy the application into the string buffer
+        TPtr ptr=string->Des();
+        TBool isDefault=EFalse;
+        
+        if( iSimplifiedView && iTasks[aIndex]->iDefaultApp==i) isDefault=ETrue;
+        if( !iSimplifiedView && iServMimes[aIndex]->iDefaultApp==i) isDefault=ETrue;
+        
+        if( isDefault ) ptr.Copy(KStringAppsDefault);
+        else ptr.Copy(KStringAppsNonDefault);
+        ptr.Append(*(*apps)[i]->iName);
+        
+        aApplicationsArray.AppendL (ptr);
+        }
+    
+    CleanupStack::PopAndDestroy(string); //data in ptr is out of scope
+        
+    //get the title now
+    if ( iSimplifiedView )
+        aTitle = GetMediaTaskStringLC(*iTasks[aIndex], EFalse);
+    else
+        aTitle = GetServiceAndMimeStringLC(*iServMimes[aIndex], EFalse);
+    CleanupStack::Pop(aTitle);
+    }
+
+// ---------------------------------------------------------------------------
+// This function sets a new default, for a Service & MIME pair or for a Task.
+// The function also updates the list of Services & MIMEs (or Tasks), to display the new default application
+// ---------------------------------------------------------------------------
+//    
+void CDefaultAppServMimeApps::UpdateDefaultL(TInt aServiceAndMimeIndex, TInt aDefaultAppIndex, CDesCArray *aServicesAndMimesArray)
+    {
+    //check for correct parameters
+    if (aServiceAndMimeIndex <0 || aDefaultAppIndex <0) User::Leave(KErrArgument);
+    if(iSimplifiedView)
+        {
+        if( aServiceAndMimeIndex >= iTasks.Count() ||
+            aDefaultAppIndex >= iTasks[aServiceAndMimeIndex]->iApplications.Count())
+            User::Leave(KErrArgument);
+        }
+    else
+        {
+        if( aServiceAndMimeIndex >= iServMimes.Count() ||
+            aDefaultAppIndex >= iServMimes[aServiceAndMimeIndex]->iApplications.Count())
+            User::Leave(KErrArgument);
+        }
+    
+    //if we are here, parameters are within their range
+    TBool doUpdate=ETrue;
+    TUid defaultAppUid;
+    CServiceRegistry *sr=CServiceRegistry::NewL();
+    CleanupStack::PushL(sr);
+        
+    //update the default in the Service Registry
+    if(iSimplifiedView)
+        {
+        TInt i,j;
+        TUid serviceUid;
+        //set the default for the generic MIME (and our server application)
+        TDataType dt(*iTasks[aServiceAndMimeIndex]->iMimeLabel);
+        defaultAppUid=TUid::Uid(iTasks[aServiceAndMimeIndex]->iApplications[aDefaultAppIndex]->iUid);
+        if(sr->SetDefault(KOpenServiceUid, dt,defaultAppUid))
+            {
+            //if we are here, SetDefault returned an error.
+            //so we do not update the default...
+            doUpdate=EFalse;
+            }
+        //set the selected default for all the Services & MIME that it supports
+        if(doUpdate)
+            {
+            for(i=0; i<iTasks[aServiceAndMimeIndex]->iSMs.Count(); i++)
+                for(j=0; j<iTasks[aServiceAndMimeIndex]->iSMs[i]->iApplications.Count(); j++)
+                    if(defaultAppUid.iUid == iTasks[aServiceAndMimeIndex]->iSMs[i]->iApplications[j]->iUid )
+                        {
+                        //the selected application supports this Service & MIME pair.
+                        //make the app default for the pair.
+                        dt=*iTasks[aServiceAndMimeIndex]->iSMs[i]->iMime;
+                        serviceUid=iTasks[aServiceAndMimeIndex]->iSMs[i]->iServiceUid;
+                        sr->SetDefault(serviceUid, dt,defaultAppUid);
+                        //update the sm so that it reflects the new default
+                        iTasks[aServiceAndMimeIndex]->iSMs[i]->iDefaultAppUid=defaultAppUid;
+                        iTasks[aServiceAndMimeIndex]->iSMs[i]->iDefaultApp=j;
+                        break; //application found in sm's list, do not need to search for it any more
+                        }
+            //update the default entries
+            iTasks[aServiceAndMimeIndex]->iDefaultApp=aDefaultAppIndex;
+            iTasks[aServiceAndMimeIndex]->iDefaultAppUid=defaultAppUid;
+            }
+            
+        }
+    else
+        {
+        TDataType dt(*iServMimes[aServiceAndMimeIndex]->iMime);
+        defaultAppUid=TUid::Uid(iServMimes[aServiceAndMimeIndex]->iApplications[aDefaultAppIndex]->iUid);
+        if(sr->SetDefault(iServMimes[aServiceAndMimeIndex]->iServiceUid, dt,defaultAppUid))
+            {
+            //if we are here, SetDefault returned an error.
+            //so we do not update the default...
+            doUpdate=EFalse;
+            }
+        //update the default entries
+        if(doUpdate)
+            {
+            iServMimes[aServiceAndMimeIndex]->iDefaultApp=aDefaultAppIndex;
+            iServMimes[aServiceAndMimeIndex]->iDefaultAppUid=defaultAppUid;
+            }
+        }
+    CleanupStack::PopAndDestroy(sr);
+        
+    //check if setting the default failed
+    if(!doUpdate)
+    {
+    	//### if updating the default failed, here would be the place to put an error note to the user
+    	return; // or leave
+    };
+        
+    //update the item in the list
+    if (aServicesAndMimesArray)
+        {
+        //get the string
+        TDesC* string;
+        if(iSimplifiedView)
+            string = GetMediaTaskStringLC(*iTasks[aServiceAndMimeIndex], ETrue);
+        else
+            string = GetServiceAndMimeStringLC(*iServMimes[aServiceAndMimeIndex], ETrue);
+        aServicesAndMimesArray->Delete(aServiceAndMimeIndex);
+        aServicesAndMimesArray->InsertL(aServiceAndMimeIndex,*string);
+        CleanupStack::PopAndDestroy(string);
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// This function creates a string that will become en element of a list box. To create the string, the function
+// concatenates several sub-strings.
+// ---------------------------------------------------------------------------
+//    
+HBufC* CDefaultAppServMimeApps::GetServiceAndMimeStringLC(CServiceMime& aServMime, TBool aInsertDefaultApp) const
+    {
+    HBufC *string=NULL;
+    TPtr *ptr=NULL;
+    TInt len;
+    _LIT(KTab,"\t");
+    
+    if(aInsertDefaultApp && aServMime.iDefaultApp >= 0) //it may be that we do not have a default ...
+        len=aServMime.iApplications[aServMime.iDefaultApp]->iName->Size();
+    else
+        len=0;
+    len+= aServMime.iServiceMime->Size();
+    len+= KStringMargin ; 
+    
+    string=HBufC::NewLC(len);
+        
+    //build the string, add the tabs before and after
+    ptr=new (ELeave) TPtr(string->Des());
+    CleanupStack::PushL(ptr);
+    
+    ptr->Copy(*aServMime.iServiceMime);
+
+    if(aInsertDefaultApp)
+        {
+        ptr->Insert(0,KTab);
+        ptr->Append(KTab);
+
+        //add default app
+        if(aServMime.iDefaultApp >= 0) //it may be that we do not have a default ...
+            ptr->Append(*aServMime.iApplications[aServMime.iDefaultApp]->iName);
+        }
+
+    CleanupStack::PopAndDestroy(ptr);
+
+    return string; //pass ownership, string also on the stack
+        
+    }
+
+// ---------------------------------------------------------------------------
+// This function creates a string that will become en element of a list box. To create the string, the function
+// concatenates several sub-strings.
+// ---------------------------------------------------------------------------
+//    
+HBufC* CDefaultAppServMimeApps::GetMediaTaskStringLC(CMediaTask& aMediaTask, TBool aInsertDefaultApp) const
+    {
+    TPtr *ptr=NULL;
+    TInt len = KStringMargin;
+    _LIT(KTab,"\t");
+    HBufC *taskName=NULL; //not owned, not deleted at the end of function
+    
+    //compute the string length
+    if(aInsertDefaultApp)
+        {
+        //we insert the task list name
+        taskName = aMediaTask.iTaskList;
+        //we also insert the length od the default app (if we have it)
+        if(aMediaTask.iDefaultApp >= 0)//it may be that we do not have a default ...
+            len += aMediaTask.iApplications[aMediaTask.iDefaultApp]->iName->Size();
+        }
+    else
+        {
+        //we should insert the task title, if we have it
+        taskName = aMediaTask.iTaskTitle;
+        //taskName = aMediaTask.iTaskList;
+        };
+    len += taskName->Size();
+    
+    //allocate the string
+    HBufC *string=HBufC::NewLC(len);
+    
+    //add the title
+    ptr=new (ELeave) TPtr(string->Des());
+    CleanupStack::PushL(ptr);
+    ptr->Copy(*taskName);
+
+    //add other stuff
+    if(aInsertDefaultApp)
+        {
+        ptr->Insert(0,KTab);
+        ptr->Append(KTab);
+        //add default app
+        if(aMediaTask.iDefaultApp >= 0) //it may be that we do not have a default ...
+            ptr->Append(*aMediaTask.iApplications[aMediaTask.iDefaultApp]->iName);
+        }
+    
+    CleanupStack::PopAndDestroy(ptr);
+
+    return string; //pass ownership, string also on the stack
+    }
+
+// ---------------------------------------------------------------------------
+// This function resets (removes) the defaults associated with a certain task, 
+// or it can remove all the defaults
+// ---------------------------------------------------------------------------
+//  
+TInt CDefaultAppServMimeApps::RestoreFactorySettingsL(TInt aCathegory)
+    {
+    TInt i, j;
+    CServiceRegistry *sr=NULL;
+    
+    if(aCathegory == -1)
+        {
+        sr=CServiceRegistry::NewL();
+        
+        if ( iSimplifiedView )
+        	{
+            for(i=0; i<iTasks.Count(); i++)
+        	    {
+                for(j=0; j<iTasks[i]->iMimes.Count(); j++)
+            	    {
+            	    sr->RemoveEntry(TUid::Uid(iTasks[i]->iServicesUids[j]), TDataType(*iTasks[i]->iMimes[j]));
+            	    }
+                //remove the entry that identifies the default app for the task
+                sr->RemoveEntry(KOpenServiceUid, TDataType(*iTasks[i]->iMimeLabel));
+        	    }
+        	}
+        else
+        	{
+        	//we reset the defaults for all the services & MIME
+        	for(i=0; i<iServMimes.Count(); i++)
+        	    sr->RemoveEntry(iServMimes[i]->iServiceUid, TDataType(*iServMimes[i]->iMime));
+        	//remove the entry that identifies the default app for the task
+        	for(i=0; i<iTasks.Count(); i++)
+        	    sr->RemoveEntry(KOpenServiceUid, TDataType(*iTasks[i]->iMimeLabel));     	
+        	}
+        }
+    else if(iSimplifiedView && aCathegory >= 0 && aCathegory < iTasks.Count())
+        {
+        //we are in simplified view, restore defaults for a single task
+        sr=CServiceRegistry::NewL();
+        for(i=0; i<iTasks[aCathegory]->iMimes.Count(); i++)
+                sr->RemoveEntry(TUid::Uid(iTasks[aCathegory]->iServicesUids[i]), TDataType(*iTasks[aCathegory]->iMimes[i]));
+            //remove the entry that identifies the default app for the task
+            sr->RemoveEntry(KOpenServiceUid, TDataType(*iTasks[aCathegory]->iMimeLabel));
+        }
+    else if(!iSimplifiedView && aCathegory >= 0 && aCathegory < iServMimes.Count())
+        {
+        //we are in the advanced view, restore defaults for a single Service & MIME pair
+        sr=CServiceRegistry::NewL();
+        sr->RemoveEntry(iServMimes[aCathegory]->iServiceUid, TDataType(*iServMimes[aCathegory]->iMime));
+        }
+    else return -1; //wrong aCathegory range
+    
+    if(sr) delete sr;
+    return 0;
+    }