author | hgs |
Tue, 21 Sep 2010 17:07:25 +0300 | |
changeset 72 | 6abfb1094884 |
parent 66 | 554fe4dbbb59 |
permissions | -rw-r--r-- |
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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 <QPluginLoader> |
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#include <QDir> |
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#include <qtcontacts.h> |
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#include <qcontactmanager.h> |
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#include <hbapplication.h> |
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#include <thumbnailmanager_qt.h> |
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#include <hbicon.h> |
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#include <QTimer> |
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#include "cntcache.h" |
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#include "cntcache_p.h" |
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#include <cntinfoproviderfactory.h> |
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#include <cntinfoprovider.h> |
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#include "cntdefaultinfoprovider.h" |
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#include "cntpresenceinfoprovider.h" |
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#include <cntdebug.h> |
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// maximum amount of info and icon jobs respectively -- if there are more jobs, |
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// then the oldest job is skipped and the client informed that this happened |
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// in this way the client can request the job again if wanted |
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static const int CntMaxInfoJobs = 20; |
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static const int CntMaxIconJobs = 20; |
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// the event for starting to process all outstanding jobs |
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static const QEvent::Type ProcessJobsEvent = QEvent::User; |
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// the id that states that no icon is currently pending from thumbnail manager |
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static const int NoIconRequest = -1; |
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// the id that states that there is no job with that key |
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static const int NoSuchJob = -1; |
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// different states of postponement |
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static const int JobsNotPostponed = 0; |
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static const int JobsPostponedForDuration = 1; |
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static const int JobsPostponedUntilResume = 2; |
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const char *CNT_INFO_PROVIDER_EXTENSION_PLUGIN_DIRECTORY = "/resource/qt/plugins/contacts/infoproviders/"; |
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// TODO: Provide a way (cenrep keys?) for UI to set which provider to use for |
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// what info field (and what info fields are indeed even in use). |
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/*! |
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Creates a new thread for fetching contact info and icons in the background. |
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*/ |
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CntCacheThread::CntCacheThread() |
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: mContactManager(new QContactManager()), |
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mProcessingJobs(false), |
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mJobsPostponed(JobsNotPostponed), |
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mIconRequestId(NoIconRequest), |
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mTimer(new QTimer()) |
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{ |
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CNT_ENTRY |
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// create static provider plugins |
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mInfoProviders.insert(new CntDefaultInfoProvider(), ContactInfoAllFields); |
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mInfoProviders.insert(new CntPresenceInfoProvider(), ContactInfoIcon2Field); |
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// load dynamic provider plugins |
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QDir pluginsDir(CNT_INFO_PROVIDER_EXTENSION_PLUGIN_DIRECTORY); |
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72 | 75 |
foreach (QString fileName, pluginsDir.entryList(QDir::Files)) { |
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// Create plugin loader |
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QPluginLoader pluginLoader(pluginsDir.absoluteFilePath(fileName)); |
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if (pluginLoader.load()) { |
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CntInfoProviderFactory *factory = qobject_cast<CntInfoProviderFactory*>(pluginLoader.instance()); |
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72 | 81 |
if (factory) { |
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CntInfoProvider *provider = factory->infoProvider(); |
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mInfoProviders.insert(provider, provider->supportedFields()); |
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} |
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} |
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} |
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// connect the providers |
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QMapIterator<CntInfoProvider*, ContactInfoFields> i(mInfoProviders); |
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while (i.hasNext()) { |
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i.next(); |
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connect(static_cast<CntInfoProvider*>(i.key()), |
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SIGNAL(infoFieldReady(CntInfoProvider*, int, ContactInfoField, const QString&)), |
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this, |
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SLOT(onInfoFieldReady(CntInfoProvider*, int, ContactInfoField, const QString&))); |
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} |
72 | 97 |
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// create & connect the thumbnail manager |
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mThumbnailManager = new ThumbnailManager(this); |
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mThumbnailManager->setMode(ThumbnailManager::Default); |
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mThumbnailManager->setQualityPreference(ThumbnailManager::OptimizeForPerformance); |
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mThumbnailManager->setThumbnailSize(ThumbnailManager::ThumbnailSmall); |
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connect(mThumbnailManager, SIGNAL(thumbnailReady(QPixmap, void *, int, int)), |
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this, SLOT(onIconReady(QPixmap, void *, int, int))); |
72 | 105 |
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mTimer->setSingleShot(true); |
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connect(mTimer, SIGNAL(timeout()), this, SLOT(resumeJobs())); |
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CNT_EXIT |
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} |
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111 |
|
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/*! |
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Cleans up and destructs the thread. |
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*/ |
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CntCacheThread::~CntCacheThread() |
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{ |
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CNT_ENTRY |
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|
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delete mContactManager; |
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disconnect(this); |
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mInfoJobs.clear(); |
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mCancelledInfoJobs.clear(); |
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mIconJobs.clear(); |
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mCancelledIconJobs.clear(); |
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if (mIconRequestId != NoIconRequest) { |
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mThumbnailManager->cancelRequest(mIconRequestId); |
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mIconRequestId = NoIconRequest; |
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} |
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delete mThumbnailManager; |
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mThumbnailManager = NULL; |
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134 |
|
66 | 135 |
qDeleteAll(mInfoProviders.keys()); |
136 |
mInfoProviders.clear(); |
|
40
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137 |
|
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138 |
CNT_EXIT |
40
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139 |
} |
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140 |
|
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141 |
/*! |
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142 |
Schedules a info to be fetched for a contact. When info has been fetched |
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infoFieldUpdated() signals will be emitted, once for each field. |
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144 |
|
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/param contactId the contact for which the info is wanted |
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*/ |
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147 |
void CntCacheThread::scheduleInfoJob(int contactId, int priority) |
40
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148 |
{ |
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CNT_ENTRY_ARGS( contactId ) |
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150 |
|
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if (contactId <= 0) |
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152 |
return; |
40
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153 |
|
47
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int index = infoJobIndex(contactId); |
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155 |
if (index != NoSuchJob) { |
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// if the job already exists, update the priority |
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if (priority < mInfoJobs.at(index).second) { |
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mInfoJobs[index] = QPair<int,int>(contactId,priority); |
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} |
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160 |
return; |
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161 |
} |
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|
162 |
|
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163 |
if (!mProcessingJobs) { |
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164 |
// new job => start processing jobs |
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mProcessingJobs = true; |
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HbApplication::instance()->postEvent(this, new QEvent(ProcessJobsEvent)); |
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167 |
} |
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168 |
|
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169 |
if (mInfoJobs.count() >= CntMaxInfoJobs) { |
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170 |
// the queue of jobs is full, so remove the oldest job |
47
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171 |
mCancelledInfoJobs.append(mInfoJobs.takeFirst().first); |
46
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172 |
CNT_LOG_ARGS( mCancelledInfoJobs.last() << "removed from joblist" ) |
40
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173 |
} |
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174 |
|
47
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175 |
mInfoJobs.append(QPair<int,int>(contactId, priority)); |
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176 |
CNT_LOG_ARGS( contactId << "(prio:" << priority << ") appended @" << (mInfoJobs.count() - 1) ); |
40
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177 |
|
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178 |
// since this job has now been scheduled, remove it from the list of |
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// cancelled jobs in case it is there |
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mCancelledInfoJobs.removeOne(contactId); |
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181 |
|
46
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182 |
CNT_EXIT |
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183 |
} |
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|
184 |
|
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185 |
/*! |
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186 |
Schedules an icon to be fetched. An iconUpdated() signal will be emitted when the icon |
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187 |
has been fetched. |
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188 |
|
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189 |
/param iconName the name of the icon to be fetched |
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190 |
*/ |
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191 |
void CntCacheThread::scheduleIconJob(const QString& iconName, int priority) |
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192 |
{ |
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CNT_ENTRY_ARGS( iconName ) |
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|
194 |
|
47
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195 |
if (iconName.isEmpty()) |
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|
196 |
return; |
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|
197 |
|
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|
198 |
int index = iconJobIndex(iconName); |
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|
199 |
if (index != NoSuchJob) { |
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200 |
// if the job already exists, update the priority |
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|
201 |
if (priority < mIconJobs.at(index).second) { |
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|
202 |
mIconJobs[index] = QPair<QString,int>(iconName,priority); |
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|
203 |
} |
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|
204 |
return; |
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|
205 |
} |
40
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|
206 |
|
47
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|
207 |
if (!mProcessingJobs) { |
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|
208 |
// new job, so restart job loop |
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|
209 |
mProcessingJobs = true; |
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|
210 |
HbApplication::instance()->postEvent(this, new QEvent(ProcessJobsEvent)); |
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|
211 |
} |
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|
212 |
|
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|
213 |
if (mIconJobs.count() >= CntMaxIconJobs) { |
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|
214 |
// the queue of jobs is full, so remove the oldest job |
47
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|
215 |
mCancelledIconJobs.append(mIconJobs.takeLast().first); |
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|
216 |
CNT_LOG_ARGS( mCancelledIconJobs.last() << "removed from joblist" ); |
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|
217 |
} |
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|
218 |
|
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|
219 |
mIconJobs.append(QPair<QString,int>(iconName, priority)); |
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|
220 |
CNT_LOG_ARGS( iconName << "(prio:" << priority << ") appended @" << (mIconJobs.count() - 1) ); |
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|
221 |
|
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|
222 |
// since this job has now been rescheduled, remove it from the list of |
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|
223 |
// cancelled jobs in case it is there |
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|
224 |
mCancelledIconJobs.removeOne(iconName); |
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|
225 |
|
72 | 226 |
CNT_EXIT |
227 |
} |
|
228 |
||
229 |
/*! |
|
230 |
Postpones outstanding jobs until milliseconds ms has passed or resumeJobs() is called. |
|
231 |
This should be called if the client wants to reserve more CPU time for some urgent tasks. |
|
232 |
||
233 |
\param milliseconds The duration of the delay; 0, which is the default, means to delay |
|
234 |
until resumeJobs() is called |
|
235 |
*/ |
|
236 |
void CntCacheThread::postponeJobs(int milliseconds) |
|
237 |
{ |
|
238 |
CNT_ENTRY_ARGS("ms =" << milliseconds << " type =" << mJobsPostponed) |
|
239 |
||
240 |
Q_ASSERT(milliseconds >= 0); |
|
241 |
||
242 |
if (milliseconds == 0) { |
|
243 |
mTimer->stop(); |
|
244 |
mJobsPostponed = JobsPostponedUntilResume; |
|
245 |
} else if (mJobsPostponed != JobsPostponedUntilResume) { |
|
246 |
mTimer->stop(); |
|
247 |
mJobsPostponed = JobsPostponedForDuration; |
|
248 |
mTimer->start(milliseconds); |
|
249 |
} |
|
40
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|
250 |
|
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|
251 |
CNT_EXIT |
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|
252 |
} |
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diff
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|
253 |
|
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254 |
/*! |
72 | 255 |
Postpones outstanding jobs until resumeJobs() is called. This must always be called after |
256 |
postponeJobs. |
|
40
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257 |
*/ |
72 | 258 |
void CntCacheThread::resumeJobs() |
40
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259 |
{ |
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260 |
CNT_ENTRY |
40
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261 |
|
72 | 262 |
mTimer->stop(); |
263 |
mJobsPostponed = JobsNotPostponed; |
|
264 |
HbApplication::instance()->postEvent(this, new QEvent(ProcessJobsEvent)); |
|
40
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265 |
|
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266 |
CNT_EXIT |
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267 |
} |
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|
268 |
|
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269 |
/*! |
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270 |
Handles a class-specific event that is sent by the scheduleOrUpdate functions |
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271 |
when there are jobs. |
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272 |
*/ |
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273 |
bool CntCacheThread::event(QEvent* event) |
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274 |
{ |
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275 |
if (event->type() == ProcessJobsEvent) { |
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276 |
processJobs(); |
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277 |
return true; |
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278 |
} |
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279 |
|
72 | 280 |
return QObject::event(event); |
40
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281 |
} |
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282 |
|
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283 |
/*! |
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284 |
Processes all scheduled jobs. The loop runs until all jobs are done. |
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285 |
It pauses for a while if new info jobs appear -- this means that the |
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|
286 |
UI is updating and so the CPU is yielded to the UI. If there are |
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287 |
again new jobs after the pause, then it pauses again, and so on. |
40
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288 |
*/ |
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289 |
void CntCacheThread::processJobs() |
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290 |
{ |
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|
291 |
CNT_ENTRY |
40
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292 |
|
72 | 293 |
bool hasDoneJobs = false; |
294 |
||
40
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|
295 |
forever { |
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296 |
int infoJobs = mInfoJobs.count(); |
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297 |
int iconJobs = mIconJobs.count(); |
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298 |
int totalJobs = infoJobs + iconJobs + mCancelledInfoJobs.count() + mCancelledIconJobs.count(); |
72 | 299 |
|
300 |
if (totalJobs == 0 || totalJobs == iconJobs && mIconRequestId != NoIconRequest || mJobsPostponed != JobsNotPostponed) { |
|
301 |
if (mJobsPostponed == JobsNotPostponed || totalJobs == 0) { |
|
47
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302 |
mProcessingJobs = false; |
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|
303 |
} |
72 | 304 |
|
305 |
if (totalJobs == 0 && hasDoneJobs) { |
|
40
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306 |
emit allJobsDone(); |
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|
307 |
} |
72 | 308 |
|
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|
309 |
break; |
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|
310 |
} |
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|
311 |
|
72 | 312 |
if (infoJobs > 0) { |
40
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|
313 |
// get next job |
47
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|
314 |
int contactId = takeNextInfoJob(); |
72 | 315 |
|
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|
316 |
// fetch qcontact |
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|
317 |
QContactFetchHint restrictions; |
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|
318 |
restrictions.setOptimizationHints(QContactFetchHint::NoRelationships); |
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|
319 |
QContact contact = mContactManager->contact(contactId, restrictions); |
72 | 320 |
|
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|
321 |
// request contact info from providers |
66 | 322 |
QMapIterator<CntInfoProvider*, ContactInfoFields> i(mInfoProviders); |
40
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|
323 |
while (i.hasNext()) { |
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324 |
i.next(); |
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|
325 |
if (i.value() != 0) { |
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|
326 |
i.key()->requestInfo(contact, i.value()); |
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|
327 |
} |
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|
328 |
} |
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|
329 |
} |
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|
330 |
else if (iconJobs > 0 && mIconRequestId == NoIconRequest) { |
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|
331 |
// request icon from thumbnail manager |
47
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|
332 |
QString iconName = takeNextIconJob(); |
40
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|
333 |
mIconRequestId = mThumbnailManager->getThumbnail(iconName, NULL, 0); |
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|
334 |
mIconRequestName = iconName; |
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|
335 |
} |
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|
336 |
else { |
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|
337 |
if (mCancelledInfoJobs.count() > 0) { |
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|
338 |
int contactId = mCancelledInfoJobs.takeLast(); |
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|
339 |
emit infoCancelled(contactId); |
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|
340 |
} |
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|
341 |
else if (mCancelledIconJobs.count() > 0) { |
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Revision: 201021
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|
342 |
QString iconName = mCancelledIconJobs.takeFirst(); |
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Revision: 201021
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|
343 |
emit iconCancelled(iconName); |
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Revision: 201021
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|
344 |
} |
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|
345 |
} |
72 | 346 |
|
347 |
hasDoneJobs = true; |
|
348 |
||
40
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|
349 |
// allow signals to be passed from providers and from the client |
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|
350 |
HbApplication::processEvents(); |
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|
351 |
} |
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|
352 |
|
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changeset
|
353 |
CNT_EXIT |
40
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|
354 |
} |
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|
355 |
|
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|
356 |
/*! |
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Revision: 201021
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|
357 |
Passes an info field from a data provider up to the client via signals. The |
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Revision: 201021
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|
358 |
client is not in the same thread, so Qt passes the signal as an event. |
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Revision: 201021
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|
359 |
*/ |
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Revision: 201021
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|
360 |
void CntCacheThread::onInfoFieldReady(CntInfoProvider* sender, int contactId, |
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Revision: 201021
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|
361 |
ContactInfoField field, const QString& text) |
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Revision: 201021
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|
362 |
{ |
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diff
changeset
|
363 |
CNT_ENTRY |
40
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|
364 |
|
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Revision: 201021
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changeset
|
365 |
// there can be 3rd party providers, so we cannot blindly trust them; |
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Revision: 201021
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|
366 |
// info is emitted only if: |
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Revision: 201021
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|
367 |
// 1) the sender is in the list of providers |
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Revision: 201021
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|
368 |
// 2) exactly one field bit is set in parameter 'field' |
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Revision: 201021
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|
369 |
// 3) the field bit has been assigned to this provider |
66 | 370 |
if (mInfoProviders.contains(sender) |
40
b46a585f6909
Revision: 201021
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|
371 |
&& ((field & (field - 1)) == 0) |
66 | 372 |
&& ((field & mInfoProviders.value(sender)) != 0)) { |
40
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Revision: 201021
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|
373 |
emit infoFieldUpdated(contactId, field, text); |
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Revision: 201021
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|
374 |
} |
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Revision: 201021
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changeset
|
375 |
|
46
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|
376 |
CNT_EXIT |
40
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|
377 |
} |
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|
378 |
|
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|
379 |
/*! |
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|
380 |
Passes an icon from thumbnail manager up to the client via a signal. The |
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|
381 |
client is not in the same thread, so Qt passes the signal as an event. |
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|
382 |
*/ |
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|
383 |
void CntCacheThread::onIconReady(const QPixmap& pixmap, void *data, int id, int error) |
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|
384 |
{ |
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|
385 |
CNT_ENTRY |
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|
386 |
|
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|
387 |
Q_UNUSED(id); |
40
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|
388 |
Q_UNUSED(data); |
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|
389 |
|
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|
390 |
Q_ASSERT(id == mIconRequestId && !mIconRequestName.isEmpty()); |
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|
391 |
if (!mProcessingJobs) { |
40
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|
392 |
// job loop quit while waiting for this icon, so restart it |
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|
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mProcessingJobs = true; |
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|
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HbApplication::instance()->postEvent(this, new QEvent(ProcessJobsEvent)); |
40
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|
395 |
} |
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|
396 |
mIconRequestId = NoIconRequest; |
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|
397 |
|
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|
398 |
if (error == 0) { |
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|
399 |
emit iconUpdated(mIconRequestName, HbIcon(pixmap)); |
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|
400 |
} |
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|
401 |
|
46
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|
402 |
CNT_EXIT |
40
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|
403 |
} |
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|
404 |
|
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|
405 |
/*! |
72 | 406 |
Finds out the index of an info job in the job list. |
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|
407 |
|
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|
408 |
\return index of the contact in the job list, or NoSuchJob if no job is scheduled for the contact |
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|
409 |
*/ |
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|
410 |
int CntCacheThread::infoJobIndex(int contactId) |
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|
411 |
{ |
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|
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int jobCount = mInfoJobs.count(); |
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|
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for (int i = 0; i < jobCount; ++i) { |
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|
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if (mInfoJobs.at(i).first == contactId) { |
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|
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return i; |
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|
416 |
} |
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|
417 |
} |
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|
418 |
|
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|
419 |
return NoSuchJob; |
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|
420 |
} |
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|
421 |
|
7cbcb2896f0e
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|
422 |
/*! |
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|
423 |
Picks the next job from the info job list (the one with the highest priority). |
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|
424 |
|
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|
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\return the id of the contact for which the info should be fetched |
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|
426 |
*/ |
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|
427 |
int CntCacheThread::takeNextInfoJob() |
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|
428 |
{ |
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|
429 |
int selectionIndex = -1; |
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|
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int selectionPriority = -1; |
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|
431 |
|
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|
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int jobCount = mInfoJobs.count(); |
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|
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if (jobCount == 0) { |
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|
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return NoSuchJob; |
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|
435 |
} |
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|
436 |
|
7cbcb2896f0e
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|
437 |
for (int i = 0; i < jobCount; ++i) { |
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|
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int jobPriority = mInfoJobs.at(i).second; |
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|
439 |
if (jobPriority < selectionPriority || selectionPriority == -1) { |
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|
440 |
selectionIndex = i; |
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|
441 |
selectionPriority = jobPriority; |
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|
442 |
} |
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|
443 |
} |
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|
444 |
|
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|
445 |
return mInfoJobs.takeAt(selectionIndex).first; |
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|
446 |
} |
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|
447 |
|
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|
448 |
/*! |
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|
449 |
Picks the next job from the icon job list (the one with the highest priority). |
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|
450 |
|
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|
451 |
\return the name of the icon that should be fetched |
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|
452 |
*/ |
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|
453 |
QString CntCacheThread::takeNextIconJob() |
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|
454 |
{ |
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|
455 |
int selectionIndex = -1; |
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|
456 |
int selectionPriority = -1; |
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|
457 |
|
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|
458 |
int jobCount = mIconJobs.count(); |
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|
459 |
if (jobCount == 0) { |
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|
460 |
return QString(); |
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|
461 |
} |
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|
462 |
|
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|
463 |
for (int i = 0; i < jobCount; ++i) { |
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|
464 |
int jobPriority = mIconJobs.at(i).second; |
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|
465 |
if (jobPriority < selectionPriority || selectionPriority == -1) { |
7cbcb2896f0e
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|
466 |
selectionIndex = i; |
7cbcb2896f0e
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|
467 |
selectionPriority = jobPriority; |
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|
468 |
} |
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|
469 |
} |
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|
470 |
|
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|
471 |
return mIconJobs.takeAt(selectionIndex).first; |
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|
472 |
} |
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|
473 |
|
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|
474 |
/*! |
72 | 475 |
Finds out the index of an icon job in the job list. |
47
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|
476 |
|
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|
477 |
\return index of the icon in the job list, or NoSuchJob if a job for the icon is not scheduled. |
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|
478 |
*/ |
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|
479 |
int CntCacheThread::iconJobIndex(QString iconName) |
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Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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{ |
7cbcb2896f0e
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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int jobCount = mIconJobs.count(); |
7cbcb2896f0e
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
46
diff
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for (int i = 0; i < jobCount; ++i) { |
7cbcb2896f0e
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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if (mIconJobs.at(i).first == iconName) { |
7cbcb2896f0e
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
46
diff
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return i; |
7cbcb2896f0e
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
46
diff
changeset
|
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} |
7cbcb2896f0e
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
46
diff
changeset
|
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} |
7cbcb2896f0e
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
46
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|
7cbcb2896f0e
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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return NoSuchJob; |
7cbcb2896f0e
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
46
diff
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} |
72 | 490 |
|
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