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/*
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* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: Private data and helper classes used by class CntCache.
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*
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*/
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#include <e32base.h>
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#include <s32mem.h>
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#include <e32std.h>
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#include <xqutils.h>
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#include <QEvent>
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#include <QFile>
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#include <QDir>
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#include <hbapplication.h>
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#include <hbstringutil.h>
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#include <cntdb.h>
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#include <cntuids.h>
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#include <cntdebug.h>
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#include "cntnamefetcher.h"
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// constants used when fetching names from CntSrv
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#define KCntSearchResultList 99
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#define KCntOpenDataBase 100
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_LIT(KCntServerExe, "CNTSRV.EXE");
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_LIT(KCntServerName, "CNTSRV");
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const TInt KAsyncMessageSlots = 6;
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const TInt KCntServerMajorVersionNumber=1;
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const TInt KCntServerMinorVersionNumber=1;
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const TInt KCntServerBuildVersionNumber=1;
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static const QEvent::Type CntAsynchOperation = QEvent::User;
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// constants used for file cache
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static const QString cacheFolder = "20022EF9";
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static const QString cacheFilename = "contactcache.dat";
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/*!
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Internal class used by CntSrvConnection to issues requests to CntSrv.
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*/
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class CntSrvSession : public RSessionBase
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{
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public:
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CntSrvSession() { mConnected = false; }
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~CntSrvSession() { RHandleBase::Close(); }
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void executeSqlQueryL(const TDesC &sqlQuery, QList<CntNameCacheItem *> &names, CntNameOrder nameFormat, int sizeHintKB);
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private:
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void connectCntSrvL();
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private:
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bool mConnected;
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};
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CntSrvConnection::CntSrvConnection()
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: mSession(NULL),
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mIsAsynchronous(false)
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{
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}
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CntSrvConnection::~CntSrvConnection()
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{
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disconnect();
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if (mThread.isRunning()) {
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mThread.quit();
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mThread.wait();
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}
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delete mSession;
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mNames.clear();
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}
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void CntSrvConnection::setAsynchronous()
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{
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mIsAsynchronous = true;
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mThread.start();
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moveToThread(&mThread);
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}
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bool CntSrvConnection::executeSqlQuery(const QString &sqlQuery, CntNameOrder nameFormat, int sizeHintKB)
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{
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CNT_ENTRY
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if (!mSession) {
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mSession = new CntSrvSession();
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}
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if (mIsAsynchronous) {
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mSqlQuery = sqlQuery;
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mNameFormat = nameFormat;
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mSizeHintKB = sizeHintKB;
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HbApplication::instance()->postEvent(this, new QEvent(CntAsynchOperation));
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} else {
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mNames.clear();
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TPtrC queryPtr(sqlQuery.utf16(), sqlQuery.length());
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TRAPD(err, mSession->executeSqlQueryL(queryPtr, mNames, nameFormat, sizeHintKB));
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if (err != KErrNone) {
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qDeleteAll(mNames);
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mNames.clear();
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CNT_EXIT
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return false;
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}
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}
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CNT_EXIT
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return true;
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}
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bool CntSrvConnection::event(QEvent *event)
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{
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if (event->type() == CntAsynchOperation) {
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CNT_ENTRY
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mNames.clear();
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TPtrC ptr(mSqlQuery.utf16(), mSqlQuery.length());
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TRAPD(err, mSession->executeSqlQueryL(ptr, mNames, mNameFormat, mSizeHintKB));
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if (err != KErrNone) {
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qDeleteAll(mNames);
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mNames.clear();
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}
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emit namesRead();
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qStableSort(mNames.begin(), mNames.end(), CntNameFetcher::compareNames);
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delete mSession;
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mSession = NULL;
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emit namesSorted();
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CNT_EXIT
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return true;
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}
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return QObject::event(event);
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}
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/*!
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Executes a special SQL query: the first column must be the contact id and
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the subsequent columns must be varchar fields.
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\param sqlQuery the SQL to execute
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\param names the list where the results will be stored
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\param nameFormat the format the names should be stored in
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\param sizeHintKB the expected size of the buffer needed to fit the results; a too
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small value will effectively double the fetch time, since the
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buffer is then resized and the data refetched a second time
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*/
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void CntSrvSession::executeSqlQueryL(const TDesC& sqlQuery, QList<CntNameCacheItem*> &names, CntNameOrder nameFormat, int sizeHintKB)
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{
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int listSize = 0;
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// read the ids and names from the database
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if (!mConnected) {
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connectCntSrvL();
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}
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// allocate tmeporary buffer
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TInt bufferSize = sizeHintKB * 1024;
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CBufFlat* buffer = CBufFlat::NewL(256);
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CleanupStack::PushL(buffer);
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// try to fetch the results, if the fetch fails with
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// a positive value, it means the buffer was too small
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// in this case the buffer is resized and the results
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// are fetched again
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for (TInt tries = 0; tries < 2 && bufferSize > 0; ++tries) {
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buffer->ResizeL(bufferSize);
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TPtr8 bufferPtr = buffer->Ptr(0);
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TIpcArgs args;
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args.Set(0, &bufferPtr);
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args.Set(1, &sqlQuery);
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bufferSize = SendReceive(KCntSearchResultList, args);
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CNT_LOG_ARGS("buffer size =" << bufferSize)
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User::LeaveIfError(bufferSize);
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}
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// store the formatted names into the list
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RBufReadStream readStream;
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TInt id;
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TBuf<256> firstName;
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TBuf<256> lastName;
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readStream.Open(*buffer);
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for (int i = 0; (id = readStream.ReadInt32L()) != 0; ++i) {
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readStream >> firstName;
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readStream >> lastName;
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CntNameCacheItem* item = new (ELeave) CntNameCacheItem(
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id,
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QString::fromUtf16(firstName.Ptr(), firstName.Length()),
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QString::fromUtf16(lastName.Ptr(), lastName.Length()),
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nameFormat);
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if (i >= listSize - 1) {
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// if the list is runnning out of space, resize it;
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// initial size is 1000 and after that it doubles
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// every time it runs out of space
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if (listSize == 0) {
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listSize = 1000;
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} else {
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listSize *= 2;
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}
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QT_TRY {
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names.reserve(listSize);
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} QT_CATCH (...) {
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// clean up and return
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CleanupStack::PopAndDestroy(buffer);
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qDeleteAll(names);
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names.clear();
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return;
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}
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}
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names.append(item);
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}
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CleanupStack::PopAndDestroy(buffer);
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}
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/*!
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Connect to / create a contacts server session.
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*/
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void CntSrvSession::connectCntSrvL()
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{
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// Assume the server is already running and attempt to create a session
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// with a maximum of KAsyncMessageSlots message slots.
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TInt err = CreateSession(KCntServerName,
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TVersion(KCntServerMajorVersionNumber, KCntServerMinorVersionNumber, KCntServerBuildVersionNumber),
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KAsyncMessageSlots);
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// Server is not running
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if (err == KErrNotFound) {
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// Use the RProcess API to start the server.
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RProcess server;
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User::LeaveIfError(server.Create(KCntServerExe, KNullDesC));
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// Enforce server to be at system default priority EPriorityForeground
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server.SetPriority(EPriorityForeground);
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// Synchronize with the server.
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TRequestStatus reqStatus;
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server.Rendezvous(reqStatus);
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server.Resume();
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// Server will call the reciprocal static synchronization call.
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User::WaitForRequest(reqStatus);
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server.Close();
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User::LeaveIfError(reqStatus.Int());
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// Create the server session.
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User::LeaveIfError(CreateSession(KCntServerName,
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TVersion(KCntServerMajorVersionNumber, KCntServerMinorVersionNumber, KCntServerBuildVersionNumber),
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KAsyncMessageSlots));
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} else {
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User::LeaveIfError(err);
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}
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TIpcArgs args;
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args.Set(0, &KNullDesC);
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User::LeaveIfError(SendReceive(KCntOpenDataBase, args));
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mConnected = true;
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}
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/*!
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Creates a CntNameFetcher object.
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*/
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CntNameFetcher::CntNameFetcher()
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: mDbConnection(NULL),
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mAsynchDbConnection(NULL),
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mSettingsManager(NULL),
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mNameFormatSetting(NULL),
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mBufferSizeEstimate(0)
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{
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CNT_ENTRY
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// get name format setting and listen to changes
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mSettingsManager = new XQSettingsManager();
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mNameFormatSetting = new XQSettingsKey(XQSettingsKey::TargetCentralRepository, KCRCntSettings.iUid, KCntNameOrdering);
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mNameFormat = static_cast<CntNameOrder>(mSettingsManager->readItemValue(*mNameFormatSetting, XQSettingsManager::TypeInt).toInt());
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mSettingsManager->startMonitoring(*mNameFormatSetting, XQSettingsManager::TypeInt);
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connect(mSettingsManager, SIGNAL(valueChanged(const XQSettingsKey&, const QVariant&)), this, SLOT(setNameFormat(const XQSettingsKey&, const QVariant&)));
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// connect to contacts server
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mDbConnection = new CntSrvConnection();
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CNT_EXIT
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}
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/*!
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Destroys a CntNameFetcher object.
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*/
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CntNameFetcher::~CntNameFetcher()
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{
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CNT_ENTRY
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delete mSettingsManager;
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delete mNameFormatSetting;
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delete mDbConnection;
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delete mAsynchDbConnection;
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CNT_EXIT
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}
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/*!
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Reads names from the file cache.
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\return true if the names were read successfully from the cache file
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*/
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bool CntNameFetcher::readNamesFromCache(QList<CntNameCacheItem*> &names)
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{
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CNT_ENTRY
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bool success = true;
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quint32 itemCount;
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quint32 nameFormat;
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QFile cacheFile(XQUtils::phoneMemoryRootPath() + cacheFolder + "\\" + cacheFilename);
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if (!cacheFile.open(QIODevice::ReadOnly)) {
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return false;
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}
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QDataStream in(&cacheFile);
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mBufferSizeEstimate = 0;
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QT_TRY {
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// read header: nr of items, name format
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in >> itemCount;
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in >> nameFormat;
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names.reserve(itemCount);
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// populate list with names
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while (itemCount-- > 0) {
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CntNameCacheItem *item = CntNameCacheItem::internalize(in, (CntNameOrder) nameFormat);
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names.append(item);
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mBufferSizeEstimate += 4 + 2 * item->name().length();
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}
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} QT_CATCH (...) {
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qDeleteAll(names);
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names.clear();
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success = false;
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}
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cacheFile.close();
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CNT_EXIT
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return success;
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}
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/*!
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Write names to the file cache.
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*/
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bool CntNameFetcher::writeNamesToCache(const QList<CntNameCacheItem*> &names) const
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{
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CNT_ENTRY
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bool success = true;
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// create folder for cache file if it does not already exist
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QString path = XQUtils::phoneMemoryRootPath() + cacheFolder;
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if (!QDir(path).exists()) {
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QDir dir(XQUtils::phoneMemoryRootPath());
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if (!dir.mkdir(cacheFolder)) {
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CNT_EXIT_ARGS("failed to create folder: " << path)
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return false;
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}
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// have to use native Symbian code to make the dir hidden
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RFs fs;
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fs.Connect();
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TPtrC pathPtr(path.utf16(), path.length());
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if (fs.SetAtt(pathPtr, KEntryAttHidden, 0) != KErrNone) {
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fs.Close();
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return false;
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}
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fs.Close();
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}
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// open cache file for writing
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QFile cacheFile(XQUtils::phoneMemoryRootPath() + cacheFolder + "\\" + cacheFilename);
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if (!cacheFile.open(QIODevice::WriteOnly | QIODevice::Truncate)) {
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CNT_EXIT_ARGS("failed to create file")
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return false;
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}
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QDataStream out(&cacheFile);
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// write the names to the cache file
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QT_TRY {
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// write header
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out << names.size();
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out << (quint32) mNameFormat;
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// write list with names
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foreach (CntNameCacheItem* name, names) {
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name->externalize(out);
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}
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} QT_CATCH (...) {
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success = false;
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}
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cacheFile.close();
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CNT_EXIT
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return success;
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}
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/*!
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Reads the name of one contact from the contact database synchronously.
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\param contactId the id of the contact
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*/
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CntNameCacheItem* CntNameFetcher::readOneName(QContactLocalId contactId) const
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{
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CNT_ENTRY
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QString sqlQuery = QString("SELECT contact_id, first_name, last_name FROM contact WHERE (type_flags>>24)<=1 AND contact_id=%1").arg(contactId);
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mDbConnection->executeSqlQuery(sqlQuery, mNameFormat, 2);
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if (mDbConnection->names().size() == 0) {
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return NULL;
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}
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CNT_EXIT
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return mDbConnection->names().at(0);
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}
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/*!
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|
442 |
Reads the names of all contacts from the contact database asynchronously.
|
|
443 |
*/
|
|
444 |
void CntNameFetcher::readAllNamesAsynch()
|
|
445 |
{
|
|
446 |
CNT_ENTRY
|
|
447 |
|
|
448 |
if (mAsynchDbConnection != NULL) {
|
|
449 |
// an asynch fetch is already in progress, so no need to start a new one
|
|
450 |
return;
|
|
451 |
}
|
|
452 |
|
|
453 |
if (mBufferSizeEstimate == 0) {
|
|
454 |
mBufferSizeEstimate = 240 * 1024;
|
|
455 |
}
|
|
456 |
|
|
457 |
CNT_LOG_ARGS("buffer size =" << mBufferSizeEstimate)
|
|
458 |
|
|
459 |
mAsynchDbConnection = new CntSrvConnection();
|
|
460 |
mAsynchDbConnection->setAsynchronous();
|
|
461 |
connect(mAsynchDbConnection, SIGNAL(namesRead()), this, SIGNAL(databaseAccessComplete()));
|
|
462 |
connect(mAsynchDbConnection, SIGNAL(namesSorted()), this, SLOT(sendCompletionSignal()));
|
|
463 |
mAsynchDbConnection->executeSqlQuery("SELECT contact_id, first_name, last_name FROM contact WHERE (type_flags>>24)<=1", mNameFormat, 16 + mBufferSizeEstimate / 1024);
|
|
464 |
|
|
465 |
CNT_EXIT
|
|
466 |
}
|
|
467 |
|
|
468 |
/*!
|
|
469 |
Sorts the names quickly and in a locale aware manner.
|
|
470 |
*/
|
|
471 |
void CntNameFetcher::sortNames(QList<CntNameCacheItem *> &names) const
|
|
472 |
{
|
|
473 |
CNT_ENTRY
|
|
474 |
|
|
475 |
qStableSort(names.begin(), names.end(), CntNameFetcher::compareNames);
|
|
476 |
|
|
477 |
CNT_EXIT
|
|
478 |
}
|
|
479 |
|
|
480 |
/*!
|
|
481 |
Compares a pair of contact names and returns true if the first
|
|
482 |
one should be presented before the second one in a list. This
|
|
483 |
static function is used e.g. when sorting lists of names.
|
|
484 |
*/
|
|
485 |
bool CntNameFetcher::compareNames(const CntNameCacheItem* a, const CntNameCacheItem* b)
|
|
486 |
{
|
|
487 |
QString aName = a->name();
|
|
488 |
QString bName = b->name();
|
|
489 |
|
|
490 |
if (aName.isEmpty()) {
|
|
491 |
return false;
|
|
492 |
} else if (bName.isEmpty()) {
|
|
493 |
return true;
|
|
494 |
}
|
|
495 |
|
|
496 |
return (HbStringUtil::compareC(aName, bName) < 0);
|
|
497 |
}
|
|
498 |
|
|
499 |
/*!
|
|
500 |
Notifies clients that the name format has changed. This function is called by the framework
|
|
501 |
if the name format settings is changed, see the constructor.
|
|
502 |
*/
|
|
503 |
void CntNameFetcher::setNameFormat(const XQSettingsKey &/*key*/, const QVariant &value)
|
|
504 |
{
|
|
505 |
CNT_ENTRY
|
|
506 |
|
|
507 |
bool ok = false;
|
|
508 |
CntNameOrder newNameFormat = static_cast<CntNameOrder>(value.toInt(&ok));
|
|
509 |
if (ok && newNameFormat != mNameFormat) {
|
|
510 |
mNameFormat = newNameFormat;
|
|
511 |
emit nameFormatChanged(mNameFormat);
|
|
512 |
}
|
|
513 |
|
|
514 |
CNT_EXIT
|
|
515 |
}
|
|
516 |
|
|
517 |
/*!
|
|
518 |
Emits the results of a completed asynch database operation.
|
|
519 |
*/
|
|
520 |
void CntNameFetcher::sendCompletionSignal()
|
|
521 |
{
|
|
522 |
CNT_ENTRY
|
|
523 |
|
|
524 |
emit namesAvailable(mAsynchDbConnection->names());
|
|
525 |
|
|
526 |
delete mAsynchDbConnection;
|
|
527 |
mAsynchDbConnection = NULL;
|
|
528 |
|
|
529 |
CNT_EXIT
|
|
530 |
}
|
|
531 |
|
|
532 |
/*!
|
|
533 |
Creates a CntNameCacheItem object.
|
|
534 |
*/
|
|
535 |
CntNameCacheItem::CntNameCacheItem(QContactLocalId id, const QString& firstName, const QString& lastName, CntNameOrder nameFormat)
|
|
536 |
{
|
|
537 |
mContactId = id;
|
|
538 |
setFormattedName(firstName, lastName, nameFormat);
|
|
539 |
}
|
|
540 |
|
|
541 |
/*!
|
|
542 |
Destroys a CntNameCacheItem object.
|
|
543 |
*/
|
|
544 |
CntNameCacheItem::~CntNameCacheItem()
|
|
545 |
{
|
|
546 |
}
|
|
547 |
|
|
548 |
/*!
|
|
549 |
Changes the format used to present the name.
|
|
550 |
*/
|
|
551 |
void CntNameCacheItem::setNameFormat(CntNameOrder newFormat)
|
|
552 |
{
|
|
553 |
QString firstName = mName.mid(mFirstNamePosition&0xffff, mFirstNamePosition>>16);
|
|
554 |
QString lastName = mName.mid(mLastNamePosition&0xffff, mLastNamePosition>>16);
|
|
555 |
setFormattedName(firstName, lastName, newFormat);
|
|
556 |
}
|
|
557 |
|
|
558 |
/*!
|
|
559 |
Copies the contents of the other cache item to this one.
|
|
560 |
*/
|
|
561 |
void CntNameCacheItem::operator=(const CntNameCacheItem &other)
|
|
562 |
{
|
|
563 |
mContactId = other.mContactId;
|
|
564 |
mFirstNamePosition = other.mFirstNamePosition;
|
|
565 |
mLastNamePosition = other.mLastNamePosition;
|
|
566 |
mName = other.mName;
|
|
567 |
}
|
|
568 |
|
|
569 |
/*!
|
|
570 |
Externalizes a CntNameCacheItem object.
|
|
571 |
*/
|
|
572 |
void CntNameCacheItem::externalize(QDataStream &stream)
|
|
573 |
{
|
|
574 |
stream << mContactId;
|
|
575 |
stream << mFirstNamePosition;
|
|
576 |
stream << mLastNamePosition;
|
|
577 |
stream << mName;
|
|
578 |
}
|
|
579 |
|
|
580 |
/*!
|
|
581 |
Internalizes a CntNameCacheItem object.
|
|
582 |
*/
|
|
583 |
CntNameCacheItem* CntNameCacheItem::internalize(QDataStream &stream, CntNameOrder nameFormat)
|
|
584 |
{
|
|
585 |
quint32 id;
|
|
586 |
quint32 firstNamePosition;
|
|
587 |
quint32 lastNamePosition;
|
|
588 |
QString name;
|
|
589 |
|
|
590 |
stream >> id;
|
|
591 |
stream >> firstNamePosition;
|
|
592 |
stream >> lastNamePosition;
|
|
593 |
stream >> name;
|
|
594 |
|
|
595 |
QString firstName = name.mid(firstNamePosition&0xffff, firstNamePosition>>16);
|
|
596 |
QString lastName = name.mid(lastNamePosition&0xffff, lastNamePosition>>16);
|
|
597 |
|
|
598 |
return new CntNameCacheItem(id, firstName, lastName, nameFormat);
|
|
599 |
}
|
|
600 |
|
|
601 |
/*!
|
|
602 |
Sets the formatted name and positions of the first name and last name,
|
|
603 |
according to the name format in the parameter.
|
|
604 |
*/
|
|
605 |
void CntNameCacheItem::setFormattedName(const QString& firstName, const QString& lastName, CntNameOrder nameFormat)
|
|
606 |
{
|
|
607 |
int firstNameLength = firstName.length();
|
|
608 |
int lastNameLength = lastName.length();
|
|
609 |
|
|
610 |
if (lastNameLength == 0) {
|
|
611 |
mName = firstName;
|
|
612 |
mFirstNamePosition = firstNameLength << 16;
|
|
613 |
mLastNamePosition = 0;
|
|
614 |
} else if (firstNameLength == 0) {
|
|
615 |
mName = lastName;
|
|
616 |
mFirstNamePosition = 0;
|
|
617 |
mLastNamePosition = lastNameLength << 16;
|
|
618 |
} else {
|
|
619 |
if (nameFormat == CntOrderLastFirst) {
|
|
620 |
mName = lastName + " " + firstName;
|
|
621 |
mFirstNamePosition = (firstNameLength << 16) | (lastNameLength + 1);
|
|
622 |
mLastNamePosition = (lastNameLength << 16);
|
|
623 |
} else if (nameFormat == CntOrderLastCommaFirst) {
|
|
624 |
mName = lastName + ", " + firstName;
|
|
625 |
mFirstNamePosition = (firstNameLength << 16) | (lastNameLength + 2);
|
|
626 |
mLastNamePosition = (lastNameLength << 16);
|
|
627 |
} else {
|
|
628 |
mName = firstName + " " + lastName;
|
|
629 |
mFirstNamePosition = (firstNameLength << 16);
|
|
630 |
mLastNamePosition = (lastNameLength << 16) | (firstNameLength + 1);
|
|
631 |
}
|
|
632 |
}
|
|
633 |
}
|
|
634 |
|
|
635 |
QString CntNameCacheItem::firstName() const
|
|
636 |
{
|
|
637 |
return mName.mid(mFirstNamePosition&0xffff, mFirstNamePosition>>16);
|
|
638 |
}
|
|
639 |
|
|
640 |
QString CntNameCacheItem::lastName() const
|
|
641 |
{
|
|
642 |
return mName.mid(mLastNamePosition&0xffff, mLastNamePosition>>16);
|
|
643 |
}
|