--- a/locationlandmarksrefappfors60/Src/LandmarksCategoriesEngine.cpp Thu Aug 19 09:48:36 2010 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,384 +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: Implementation of CLandmarksCategoriesEngine
-*
-*/
-
-
-
-#include <EPos_CPosLandmarkDatabase.h>
-#include <EPos_CPosLmCatNameCriteria.h>
-#include <EPos_CPosLandmarkSearch.h>
-#include <EPos_CPosLmCategoryManager.h>
-
-#include "LandmarksCategoriesEngine.h"
-#include "LandmarksLmOpWrapper.h"
-
-// ============================ MEMBER FUNCTIONS ===============================
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-CLandmarksCategoriesEngine::CLandmarksCategoriesEngine(
- CPosLandmarkDatabase& aDb)
-: CLandmarksEngineBase(aDb)
- {
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksCategoriesEngine::ConstructL()
- {
- CLandmarksEngineBase::ConstructL();
- iCatManager = CPosLmCategoryManager::NewL(iDb);
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-CLandmarksCategoriesEngine* CLandmarksCategoriesEngine::NewL(
- CPosLandmarkDatabase& aDb)
- {
- CLandmarksCategoriesEngine* self =
- new (ELeave) CLandmarksCategoriesEngine(aDb);
- CleanupStack::PushL(self);
- self->ConstructL();
- CleanupStack::Pop(self);
- return self;
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-CLandmarksCategoriesEngine::~CLandmarksCategoriesEngine()
- {
- Cancel();
- delete iCatManager;
- iSubSetOfIds.Close();
- iItemIds.Close();
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksCategoriesEngine::AddCategoryL(CPosLandmarkCategory& aCategory)
- {
- iCatManager->AddCategoryL(aCategory);
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksCategoriesEngine::UpdateCategoryL(const CPosLandmarkCategory& aCategory)
- {
- iCatManager->UpdateCategoryL(aCategory);
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksCategoriesEngine::DeleteCategoryL(TPosLmItemId aItemId)
- {
- ExecuteAndDeleteLD(iCatManager->RemoveCategoryL(aItemId));
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-CPosLandmarkCategory* CLandmarksCategoriesEngine::CategoryLC(TPosLmItemId aItemId)
- {
- return iCatManager->ReadCategoryLC(aItemId);
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksCategoriesEngine::StartSearchingCategoriesL(
- MLandmarksOperationObserver* aObserver)
- {
- // We need to cancel if we are searching/reading categories.
- Cancel();
-
- iObserver = aObserver;
- iSearchResultExists = EFalse;
- iFilterSearch = EFalse;
-
- // Complete ourselves and start search for all categories in db in RunL().
- iStatus = KRequestPending;
- SetPriorityAndSetActive();
- iActiveOperation = ECategorySearch;
- TRequestStatus* status = &iStatus;
- User::RequestComplete(status, KErrNone);
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksCategoriesEngine::StartSearchingCategoriesL(
- const TDesC& aSearchPattern,
- TBool aSearchOnlyInPreviousMatches,
- MLandmarksOperationObserver* aObserver)
- {
- // We need to cancel if we are searching/reading categories.
- 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
- CPosLmCatNameCriteria* criteria = CPosLmCatNameCriteria::NewLC();
- criteria->SetSearchPatternL(aSearchPattern);
-
- // Create search operation
- CPosLmOperation* operation = iSearcher->StartCategorySearchL(
- *criteria,
- CPosLmCategoryManager::ECategorySortOrderNameAscending,
- aSearchOnlyInPreviousMatches);
- CleanupStack::PopAndDestroy(criteria);
-
- // Start search operation
- iObserver = aObserver;
- iStatus = KRequestPending;
- iLmOpWrapper->StartOperation(operation, iStatus);
- SetPriorityAndSetActive();
- iActiveOperation = ECategorySearch;
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-RArray<TPosLmItemId>* CLandmarksCategoriesEngine::FetchSearchResult()
- {
- return &iItemIds;
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksCategoriesEngine::StartReadingCategoriesL(
- 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 categories
- ReadSomeCategoriesL();
- iActiveOperation = ECategoryRead;
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-CArrayPtr<CPosLandmarkCategory>* CLandmarksCategoriesEngine::FetchCategoriesLC()
- {
- TInt nrOfItems = iSubSetOfIds.Count();
- CArrayPtr<CPosLandmarkCategory>* categories =
- new (ELeave) CArrayPtrFlat<CPosLandmarkCategory>(nrOfItems);
- CleanupStack::PushL(categories);
-
- // Start the actual read of landmarks. This is done synchronously since
- // there is no asynchronous read method as there is for landmarks:
- // (Compare TakePreparedPartialLandmarksL())
- for (TInt i = 0; i < nrOfItems; i++)
- {
- CPosLandmarkCategory* category =
- iCatManager->ReadCategoryLC(iSubSetOfIds[i]);
- categories->AppendL(category);
- CleanupStack::Pop(category);
- }
-
- return categories;
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-CArrayPtr<CPosLandmarkCategory>* CLandmarksCategoriesEngine::CategoriesL()
- {
- const TInt KGranularity = 8;
- CArrayPtrFlat<CPosLandmarkCategory>* categories =
- new (ELeave) CArrayPtrFlat<CPosLandmarkCategory>(KGranularity);
- CleanupStack::PushL(categories);
-
- // Get an iterator for all existing categories sorted ascending by name
- CPosLmItemIterator* itemIterator = iCatManager->CategoryIteratorL(
- CPosLmCategoryManager::ECategorySortOrderNameAscending);
- CleanupStack::PushL(itemIterator);
-
- // Read all categories and add them to an array
- TPosLmItemId catId = itemIterator->NextL();
- while (catId != KPosLmNullItemId)
- {
- CPosLandmarkCategory* category = iCatManager->ReadCategoryLC(catId);
- categories->AppendL(category);
- CleanupStack::Pop(category);
-
- catId = itemIterator->NextL();
- }
- CleanupStack::PopAndDestroy(itemIterator);
- CleanupStack::Pop(categories);
-
- return categories;
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksCategoriesEngine::RunL()
- {
- if (iStatus == KErrNone)
- {
- if (iActiveOperation == ECategorySearch)
- {
- // Fetch search result
- PopulateItemIdArrayL();
- }
- else if (iActiveOperation == ECategoryRead)
- {
- if (iCurrentItemId < iItemIds.Count())
- {
- // There are still found landmarks to read
- iObserver->NotifyOperationProgressL(
- iActiveOperation, KOperationNotReady, KErrNone);
- ReadSomeCategoriesL();
- }
- else
- {
- // No more matches to read
- NotifyOperationReadyL(iActiveOperation, KErrNone);
- }
- }
- }
- else
- {
- // Operation failed. Forward error code
- NotifyOperationReadyL(iActiveOperation, iStatus.Int());
- }
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksCategoriesEngine::DoCancel()
- {
- iLmOpWrapper->Cancel();
- if (iActiveOperation == ECategorySearch)
- {
- iSearchResultExists = EFalse;
- }
- iActiveOperation = ENoOperation;
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-TInt CLandmarksCategoriesEngine::RunError(TInt aError)
- {
- // Notify user and ignore error code
- TInt err;
- TRAP(err, NotifyOperationReadyL(iActiveOperation, aError));
-
- return KErrNone;
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksCategoriesEngine::ReadSomeCategoriesL()
- {
- // Create a subset of the found matches to read
- iSubSetOfIds.Reset();
- TInt nrOfMatches = iItemIds.Count();
- TInt i = 0;
- while (i < iNrOfItemsToRead && iCurrentItemId < nrOfMatches)
- {
- User::LeaveIfError(
- iSubSetOfIds.Append(iItemIds[iCurrentItemId]));
- iCurrentItemId++;
- i++;
- }
-
- // Simulate start reading found matches. There is no asynchronous search
- // functionality for categories as there is for landmarks,
- // (Compare PreparePartialLandmarksL())
- iStatus = KRequestPending;
- SetPriorityAndSetActive();
- TRequestStatus* status = &iStatus;
- User::RequestComplete(status, KErrNone);
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksCategoriesEngine::NotifyOperationReadyL(
- TOperation aOperation,
- TInt aErrorCode)
- {
- iActiveOperation = ENoOperation;
- iObserver->NotifyOperationProgressL(
- aOperation,
- KOperationReady,
- aErrorCode);
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CLandmarksCategoriesEngine::PopulateItemIdArrayL()
- {
- // Fetch itemIterator
- CPosLmItemIterator* itemIterator = NULL;
- if (iFilterSearch)
- {
- itemIterator = iSearcher->MatchIteratorL();
- iSearchResultExists = ETrue;
- }
- else
- {
- itemIterator = iCatManager->CategoryIteratorL(
- CPosLmCategoryManager::ECategorySortOrderNameAscending);
- }
- 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);
- }
-
-