author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 23 Jun 2010 18:02:44 +0300 | |
changeset 46 | efe85016a067 |
parent 40 | b46a585f6909 |
child 47 | 7cbcb2896f0e |
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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|
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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 "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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|
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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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// amount of milliseconds to postpone the jobs if the UI is very active |
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static const int PostponeJobsMilliSeconds = 300; |
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// the event for starting to do all the outstanding jobs |
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static const QEvent::Type DoAllJobsEvent = 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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|
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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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mStarted(false), |
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mJobLoopRunning(false), |
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mPostponeJobs(false), |
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mIconRequestId(NoIconRequest) |
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{ |
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CNT_ENTRY |
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|
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// create static provider plugins |
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mDataProviders.insert(new CntDefaultInfoProvider(), ContactInfoAllFields); |
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mDataProviders.insert(new CntPresenceInfoProvider(), ContactInfoIcon2Field); |
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// TODO: create more static provider plugins |
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|
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// TODO: load dynamic provider plugins using QPluginLoader |
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|
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// connect the providers |
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QMapIterator<CntInfoProvider*, ContactInfoFields> i(mDataProviders); |
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while (i.hasNext()) { |
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i.next(); |
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connect(qobject_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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} |
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|
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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))); |
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CNT_EXIT |
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} |
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|
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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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delete mContactManager; |
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disconnect(this); |
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mJobMutex.lock(); |
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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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|
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if (mIconRequestId != NoIconRequest) { |
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103 |
mThumbnailManager->cancelRequest(mIconRequestId); |
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mIconRequestId = NoIconRequest; |
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105 |
} |
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106 |
|
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delete mThumbnailManager; |
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mThumbnailManager = NULL; |
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109 |
|
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qDeleteAll(mDataProviders.keys()); |
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111 |
mDataProviders.clear(); |
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112 |
|
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113 |
mJobMutex.unlock(); |
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114 |
|
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115 |
exit(); |
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wait(); |
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117 |
|
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118 |
CNT_EXIT |
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119 |
} |
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120 |
|
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121 |
/*! |
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122 |
Starts the event loop for this thread. |
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123 |
*/ |
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void CntCacheThread::run() |
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125 |
{ |
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CNT_ENTRY |
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127 |
|
40
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exec(); |
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129 |
|
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130 |
CNT_EXIT |
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131 |
} |
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132 |
|
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133 |
/*! |
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134 |
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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136 |
|
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/param contactId the contact for which the info is wanted |
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138 |
*/ |
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139 |
void CntCacheThread::scheduleInfoJob(int contactId) |
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140 |
{ |
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141 |
CNT_ENTRY_ARGS( contactId ) |
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142 |
|
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Q_ASSERT(contactId > 0 && !mInfoJobs.contains(contactId)); |
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144 |
|
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145 |
mJobMutex.lock(); |
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146 |
|
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147 |
if (!mStarted) { |
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148 |
// this thread should interfere as little as possible with more time-critical tasks, |
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// like updating the UI during scrolling |
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start(QThread::IdlePriority); |
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mStarted = true; |
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152 |
} |
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153 |
|
40
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154 |
if (!mJobLoopRunning) { |
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// new job => restart job loop |
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mJobLoopRunning = true; |
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157 |
HbApplication::instance()->postEvent(this, new QEvent(DoAllJobsEvent)); |
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158 |
} |
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159 |
|
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160 |
if (mInfoJobs.count() >= CntMaxInfoJobs) { |
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161 |
// the queue of jobs is full, so remove the oldest job |
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162 |
mCancelledInfoJobs.append(mInfoJobs.takeFirst()); |
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163 |
CNT_LOG_ARGS( mCancelledInfoJobs.last() << "removed from joblist" ) |
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164 |
} |
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165 |
|
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mInfoJobs.append(contactId); |
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167 |
CNT_LOG_ARGS( contactId << "appended @" << mInfoJobs.indexOf(contactId) ); |
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168 |
|
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169 |
// since this job has now been scheduled, remove it from the list of |
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170 |
// cancelled jobs in case it is there |
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171 |
mCancelledInfoJobs.removeOne(contactId); |
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|
172 |
|
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173 |
mJobMutex.unlock(); |
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174 |
|
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175 |
CNT_EXIT |
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176 |
} |
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177 |
|
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178 |
/*! |
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179 |
Schedules an icon to be fetched. An iconUpdated() signal will be emitted when the icon |
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180 |
has been fetched. |
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181 |
|
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/param iconName the name of the icon to be fetched |
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183 |
*/ |
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184 |
void CntCacheThread::scheduleIconJob(const QString& iconName) |
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185 |
{ |
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CNT_ENTRY_ARGS( iconName ) |
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187 |
|
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188 |
mJobMutex.lock(); |
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189 |
|
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190 |
Q_ASSERT(!iconName.isEmpty() && !mIconJobs.contains(iconName)); |
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|
191 |
|
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192 |
if (!mJobLoopRunning) { |
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193 |
// new job, so restart job loop |
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194 |
mJobLoopRunning = true; |
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195 |
HbApplication::instance()->postEvent(this, new QEvent(DoAllJobsEvent)); |
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196 |
} |
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197 |
|
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198 |
if (mIconJobs.count() >= CntMaxIconJobs) { |
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199 |
// the queue of jobs is full, so remove the oldest job |
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200 |
mCancelledIconJobs.append(mIconJobs.takeLast()); |
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201 |
CNT_LOG_ARGS( mCancelledIconJobs.last() << "removed from joblist" ); |
40
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202 |
} |
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|
203 |
|
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204 |
mIconJobs.append(iconName); |
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|
205 |
CNT_LOG_ARGS( iconName << "appended @" << mIconJobs.indexOf(iconName) ); |
40
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206 |
|
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207 |
// since this job has now been rescheduled, remove it from the list of |
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// cancelled jobs in case it is there |
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mCancelledIconJobs.removeOne(iconName); |
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210 |
|
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mJobMutex.unlock(); |
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|
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213 |
CNT_EXIT |
40
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} |
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215 |
|
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216 |
/*! |
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Postpones outstanding jobs for a few tenths of a second. This should be called if |
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the client wants to reserve more CPU time for some urgent task. |
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*/ |
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void CntCacheThread::postponeJobs() |
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{ |
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CNT_ENTRY |
40
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223 |
|
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mPostponeJobs = true; |
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|
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226 |
CNT_EXIT |
40
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} |
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228 |
|
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229 |
/*! |
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Handles a class-specific event that is sent by the scheduleOrUpdate functions |
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when there are jobs. |
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*/ |
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bool CntCacheThread::event(QEvent* event) |
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{ |
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if (event->type() == DoAllJobsEvent) { |
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doAllJobs(); |
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return true; |
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} |
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239 |
|
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return QThread::event(event); |
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} |
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242 |
|
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243 |
/*! |
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244 |
Does the jobs. The loop runs until all jobs are done. It pauses |
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for a while if new info jobs appear -- this means that the UI is |
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updating and so the CPU is yielded to the UI. If there are again |
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new jobs after the pause, then it pauses again, and so on. |
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*/ |
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void CntCacheThread::doAllJobs() |
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250 |
{ |
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251 |
CNT_ENTRY |
40
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252 |
|
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forever { |
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mJobMutex.lock(); |
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int infoJobs = mInfoJobs.count(); |
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int iconJobs = mIconJobs.count(); |
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int totalJobs = infoJobs + iconJobs + mCancelledInfoJobs.count() + mCancelledIconJobs.count(); |
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258 |
|
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if (totalJobs == 0 || totalJobs == iconJobs && mIconRequestId != NoIconRequest || mPostponeJobs) { |
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if (mPostponeJobs) { |
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// client has requested a pause in activies (e.g. due to high UI activity) |
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mPostponeJobs = false; |
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if (totalJobs > 0) { |
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QTimer::singleShot(PostponeJobsMilliSeconds, this, SLOT(doAllJobs())); |
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} |
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else { |
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mJobLoopRunning = false; |
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} |
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269 |
} |
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else { |
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mJobLoopRunning = false; |
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} |
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273 |
|
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mJobMutex.unlock(); |
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275 |
|
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if (totalJobs == 0) { |
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emit allJobsDone(); |
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} |
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279 |
|
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break; |
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281 |
} |
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|
282 |
|
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bool doInfoJobs = infoJobs > 0 && (iconJobs == 0 || mIconRequestId != NoIconRequest || qrand() % (infoJobs + iconJobs) < infoJobs); |
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284 |
|
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285 |
if (doInfoJobs) { |
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// get next job |
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int contactId = mInfoJobs.takeLast(); |
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mJobMutex.unlock(); |
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289 |
|
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// fetch qcontact |
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QContactFetchHint restrictions; |
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restrictions.setOptimizationHints(QContactFetchHint::NoRelationships); |
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QContact contact = mContactManager->contact(contactId, restrictions); |
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|
294 |
|
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// request contact info from providers |
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|
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QMapIterator<CntInfoProvider*, ContactInfoFields> i(mDataProviders); |
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|
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while (i.hasNext()) { |
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i.next(); |
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if (i.value() != 0) { |
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i.key()->requestInfo(contact, i.value()); |
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|
301 |
} |
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302 |
} |
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|
303 |
} |
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else if (iconJobs > 0 && mIconRequestId == NoIconRequest) { |
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|
305 |
// request icon from thumbnail manager |
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|
306 |
QString iconName = mIconJobs.takeFirst(); |
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mIconRequestId = mThumbnailManager->getThumbnail(iconName, NULL, 0); |
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|
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mIconRequestName = iconName; |
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mJobMutex.unlock(); |
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310 |
} |
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311 |
else { |
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312 |
if (mCancelledInfoJobs.count() > 0) { |
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313 |
int contactId = mCancelledInfoJobs.takeLast(); |
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mJobMutex.unlock(); |
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315 |
emit infoCancelled(contactId); |
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316 |
} |
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317 |
else if (mCancelledIconJobs.count() > 0) { |
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QString iconName = mCancelledIconJobs.takeFirst(); |
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319 |
mJobMutex.unlock(); |
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Revision: 201021
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320 |
emit iconCancelled(iconName); |
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|
321 |
} |
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322 |
} |
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|
323 |
|
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Revision: 201021
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// allow signals to be passed from providers and from the client |
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HbApplication::processEvents(); |
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Revision: 201021
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326 |
} |
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327 |
|
46
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Revision: 201023
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328 |
CNT_EXIT |
40
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Revision: 201021
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329 |
} |
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Revision: 201021
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|
330 |
|
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Revision: 201021
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331 |
/*! |
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Revision: 201021
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|
332 |
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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333 |
client is not in the same thread, so Qt passes the signal as an event. |
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*/ |
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Revision: 201021
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void CntCacheThread::onInfoFieldReady(CntInfoProvider* sender, int contactId, |
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Revision: 201021
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ContactInfoField field, const QString& text) |
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Revision: 201021
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337 |
{ |
46
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338 |
CNT_ENTRY |
40
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|
339 |
|
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Revision: 201021
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// there can be 3rd party providers, so we cannot blindly trust them; |
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Revision: 201021
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// info is emitted only if: |
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Revision: 201021
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// 1) the sender is in the list of providers |
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Revision: 201021
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// 2) exactly one field bit is set in parameter 'field' |
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Revision: 201021
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// 3) the field bit has been assigned to this provider |
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Revision: 201021
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if (mDataProviders.contains(sender) |
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Revision: 201021
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&& ((field & (field - 1)) == 0) |
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Revision: 201021
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&& ((field & mDataProviders.value(sender)) != 0)) { |
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Revision: 201021
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emit infoFieldUpdated(contactId, field, text); |
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Revision: 201021
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349 |
} |
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Revision: 201021
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|
350 |
|
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Revision: 201023
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|
351 |
CNT_EXIT |
40
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Revision: 201021
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|
352 |
} |
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Revision: 201021
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|
353 |
|
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Revision: 201021
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|
354 |
/*! |
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Revision: 201021
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|
355 |
Passes an icon from thumbnail manager up to the client via a signal. The |
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Revision: 201021
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|
356 |
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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|
357 |
*/ |
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Revision: 201021
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|
358 |
void CntCacheThread::onIconReady(const QPixmap& pixmap, void *data, int id, int error) |
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Revision: 201021
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359 |
{ |
46
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Revision: 201023
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|
360 |
CNT_ENTRY |
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Revision: 201023
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|
361 |
|
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Revision: 201023
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|
362 |
Q_UNUSED(id); |
40
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Revision: 201021
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|
363 |
Q_UNUSED(data); |
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Revision: 201021
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|
364 |
|
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Revision: 201021
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|
365 |
mJobMutex.lock(); |
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Revision: 201021
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|
366 |
Q_ASSERT(id == mIconRequestId && !mIconRequestName.isEmpty()); |
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Revision: 201021
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|
367 |
if (!mJobLoopRunning) { |
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Revision: 201021
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|
368 |
// job loop quit while waiting for this icon, so restart it |
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Revision: 201021
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|
369 |
mJobLoopRunning = true; |
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Revision: 201021
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parents:
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|
370 |
HbApplication::instance()->postEvent(this, new QEvent(DoAllJobsEvent)); |
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Revision: 201021
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parents:
diff
changeset
|
371 |
} |
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Revision: 201021
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parents:
diff
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|
372 |
mIconRequestId = NoIconRequest; |
b46a585f6909
Revision: 201021
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parents:
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|
373 |
mJobMutex.unlock(); |
b46a585f6909
Revision: 201021
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parents:
diff
changeset
|
374 |
|
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Revision: 201021
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
375 |
if (error == 0) { |
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Revision: 201021
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
376 |
emit iconUpdated(mIconRequestName, HbIcon(pixmap)); |
b46a585f6909
Revision: 201021
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
377 |
} |
b46a585f6909
Revision: 201021
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parents:
diff
changeset
|
378 |
|
46
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Revision: 201023
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diff
changeset
|
379 |
CNT_EXIT |
40
b46a585f6909
Revision: 201021
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parents:
diff
changeset
|
380 |
} |