--- a/locationlandmarksrefappfors60/Src/LandmarksEngine.cpp Thu Aug 19 09:48:36 2010 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,386 +0,0 @@
-/*
-* Copyright (c) 2004-2005 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: Implements the CLandmarksEngine class
-*
-*/
-
-
-
-#include <aknview.h>
-#include <EPos_CPosLandmarkDatabase.h>
-#include <EPos_CPosLmPartialReadParameters.h>
-#include <EPos_CPosLandmarkSearch.h>
-#include <EPos_CPosLmTextCriteria.h>
-
-#include "LandmarksEngine.h"
-#include "LandmarksLmOpWrapper.h"
-
-// ============================ MEMBER FUNCTIONS ===============================
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-CLandmarksEngine::CLandmarksEngine(
- CPosLandmarkDatabase& aDb)
-: CLandmarksEngineBase(aDb),
- iSortPref(CPosLandmark::ELandmarkName, TPosLmSortPref::EAscending)
- {
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksEngine::ConstructL()
- {
- CLandmarksEngineBase::ConstructL();
-
- // Set partial read parameters
- CPosLmPartialReadParameters* partialReadParams =
- CPosLmPartialReadParameters::NewLC();
- partialReadParams->SetRequestedAttributes(
- CPosLandmark::ELandmarkName | CPosLandmark::EIcon);
- iDb.SetPartialReadParametersL(*partialReadParams);
- CleanupStack::PopAndDestroy(partialReadParams);
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-CLandmarksEngine* CLandmarksEngine::NewL(
- CPosLandmarkDatabase& aDb)
- {
- CLandmarksEngine* self = new (ELeave) CLandmarksEngine(aDb);
- CleanupStack::PushL(self);
- self->ConstructL();
- CleanupStack::Pop(self);
- return self;
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-CLandmarksEngine::~CLandmarksEngine()
- {
- Cancel();
- iItemIds.Close();
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-TBool CLandmarksEngine::StartInitializeDbIfNecessaryL(
- MLandmarksOperationObserver* aObserver)
- {
- if (iDb.IsInitializingNeeded())
- {
- // Create initialize operation
- CPosLmOperation* operation = iDb.InitializeL();
-
- iObserver = aObserver;
- iActiveOperation = EInitializeDb;
- iStatus = KRequestPending;
- SetPriorityAndSetActive();
-
- // Start asynchronous initialization
- TBool reportProgress = ETrue;
- iLmOpWrapper->StartOperation(operation, iStatus, reportProgress);
-
- return ETrue;
- }
- else
- {
- return EFalse;
- }
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksEngine::AddLandmarkL(CPosLandmark& aLandmark)
- {
- iDb.AddLandmarkL(aLandmark);
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksEngine::CommitLandmarkL(const CPosLandmark& aLandmark)
- {
- iDb.UpdateLandmarkL(aLandmark);
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksEngine::DeleteLandmarkL(TPosLmItemId aItemId)
- {
- iDb.RemoveLandmarkL(aItemId);
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-CPosLandmark* CLandmarksEngine::LandmarkLC(TPosLmItemId aItemId)
- {
- return iDb.ReadLandmarkLC(aItemId);
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksEngine::StartSearchingLandmarksL(
- MLandmarksOperationObserver* aObserver)
- {
- // We need to cancel if we are searching/reading landmarks.
- Cancel();
-
- iObserver = aObserver;
- iSearchResultExists = EFalse;
- iFilterSearch = EFalse;
-
- // Complete ourselves and start search for all landmarks in db in RunL().
- iStatus = KRequestPending;
- SetPriorityAndSetActive();
- iActiveOperation = ELandmarkSearch;
- TRequestStatus* status = &iStatus;
- User::RequestComplete(status, KErrNone);
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksEngine::StartSearchingLandmarksL(
- const TDesC& aSearchPattern,
- TBool aSearchOnlyInPreviousMatches,
- MLandmarksOperationObserver* aObserver)
- {
- // We need to cancel if we are searching/reading landmarks.
- Cancel();
-
- if (!iSearchResultExists)
- {
- // There are no previous results or previous search did not complete.
- // We cannot use the result from it.
- aSearchOnlyInPreviousMatches = EFalse;
- }
- iSearchResultExists = EFalse;
- iFilterSearch = ETrue;
-
- // Set search criteria
- CPosLmTextCriteria* criteria = CPosLmTextCriteria::NewLC();
- criteria->SetTextL(aSearchPattern);
- criteria->SetAttributesToSearch(CPosLandmark::ELandmarkName);
-
- // Create search operation
- CPosLmOperation* operation = iSearcher->StartLandmarkSearchL(
- *criteria, iSortPref, aSearchOnlyInPreviousMatches);
- CleanupStack::PopAndDestroy(criteria);
-
- // Start search operation
- iObserver = aObserver;
- iStatus = KRequestPending;
- iLmOpWrapper->StartOperation(operation, iStatus);
- SetPriorityAndSetActive();
- iActiveOperation = ELandmarkSearch;
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-RArray<TPosLmItemId>* CLandmarksEngine::FetchSearchResult()
- {
- return &iItemIds;
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksEngine::StartReadingLandmarksL(
- TInt aNrOfItemsToReadPerBundle,
- MLandmarksOperationObserver* aObserver)
- {
- // We need to cancel if we are searching/reading landmarks.
- Cancel();
-
- iNrOfItemsToRead = aNrOfItemsToReadPerBundle;
- iObserver = aObserver;
- iCurrentItemId = 0;
-
- // Start reading a bundle of landmarks
- ReadSomeLandmarksL();
- iActiveOperation = ELandmarkRead;
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-CArrayPtr<CPosLandmark>* CLandmarksEngine::FetchLandmarksLC()
- {
- // Fetch the partially read landmarks.
- CArrayPtr<CPosLandmark>* result =
- iDb.TakePreparedPartialLandmarksL(iLmOpWrapper->LmOperationPtr());
- CleanupStack::PushL(result);
-
- return result;
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksEngine::RunL()
- {
- if (iActiveOperation == EInitializeDb)
- {
- // Report progress
- iObserver->NotifyOperationProgressL(
- iActiveOperation, iLmOpWrapper->Progress(), iStatus.Int());
-
- if (iStatus == KPosLmOperationNotComplete)
- {
- // Continue initializing database until finished
- iStatus = KRequestPending;
- SetPriorityAndSetActive();
- iLmOpWrapper->ExecuteNextStep(iStatus);
- }
- }
- else if (iStatus != KErrNone)
- {
- // Operation failed. Report error code
- NotifyOperationReadyL(iActiveOperation, iStatus.Int());
- }
- else if (iActiveOperation == ELandmarkSearch)
- {
- // Fetch search result
- PopulateItemIdArrayL();
- }
- else if (iActiveOperation == ELandmarkRead)
- {
- if (iCurrentItemId < iItemIds.Count())
- {
- // There are still found landmarks to read
- iObserver->NotifyOperationProgressL(iActiveOperation, KOperationNotReady, KErrNone);
- ReadSomeLandmarksL();
- }
- else
- {
- // No more matches to read
- NotifyOperationReadyL(iActiveOperation, KErrNone);
- }
- }
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksEngine::DoCancel()
- {
- iLmOpWrapper->Cancel();
-
- if (iActiveOperation == ELandmarkSearch)
- {
- iSearchResultExists = EFalse;
- }
- iActiveOperation = ENoOperation;
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-TInt CLandmarksEngine::RunError(TInt aError)
- {
- // Notify user and ignore error code
- TInt err;
- TRAP(err, NotifyOperationReadyL(iActiveOperation, aError));
-
- return KErrNone;
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksEngine::ReadSomeLandmarksL()
- {
- RArray<TPosLmItemId> subSetOfIds;
- CleanupClosePushL(subSetOfIds);
-
- // Create a subset of the found matches to read
- TInt nrOfMatches = iItemIds.Count();
- TInt i = 0;
- while (i < iNrOfItemsToRead && iCurrentItemId < nrOfMatches)
- {
- User::LeaveIfError(subSetOfIds.Append(iItemIds[iCurrentItemId]));
- iCurrentItemId++;
- i++;
- }
-
- // Start reading subset of found matches
- iStatus = KRequestPending;
- CPosLmOperation* operation = iDb.PreparePartialLandmarksL(subSetOfIds);
- iLmOpWrapper->StartOperation(operation, iStatus);
- SetPriorityAndSetActive();
-
- CleanupStack::PopAndDestroy(&subSetOfIds);
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksEngine::NotifyOperationReadyL(
- TOperation aOperation,
- TInt aErrorCode)
- {
- iActiveOperation = ENoOperation;
- iObserver->NotifyOperationProgressL(
- aOperation,
- KOperationReady,
- aErrorCode);
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksEngine::PopulateItemIdArrayL()
- {
- // Fetch itemIterator
- CPosLmItemIterator* itemIterator = NULL;
- if (iFilterSearch)
- {
- itemIterator = iSearcher->MatchIteratorL();
- iSearchResultExists = ETrue;
- }
- else
- {
- itemIterator = iDb.LandmarkIteratorL(iSortPref);
- }
- CleanupStack::PushL(itemIterator);
- itemIterator->Reset();
-
- // Fetch iItemIds
- TUint nrOfItems = itemIterator->NumOfItemsL();
- if (nrOfItems > 0)
- {
- TInt startIndex = 0;
- iItemIds.Reset();
- itemIterator->GetItemIdsL(iItemIds, startIndex, nrOfItems);
- NotifyOperationReadyL(iActiveOperation, KErrNone);
- }
- else
- {
- // No matches found
- NotifyOperationReadyL(iActiveOperation, KErrNotFound);
- }
- CleanupStack::PopAndDestroy(itemIterator);
- }
-
-