/*
* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description: tsmodel.cpp
*
*/
#include "tsmodel.h"
#include <QVariant>
#include <QList>
#include <HbIcon>
#include <afstorageglobals.h>
#include "tsmodelitem.h"
#include "tsdataroles.h"
#include "tstaskchangeinfo.h"
/*!
\class TsModel
\ingroup group_tsdevicedialogplugin
\brief Model storing running tasks.
*/
/*!
Constructor
\param query used to create model
\param pointer to parent object
*/
TsModel::TsModel(TsTaskMonitor &applicationSrv, QObject *parent) :
QAbstractListModel(parent),
mEntries(),
mApplicationService(applicationSrv)
{
connect(&applicationSrv,
SIGNAL(taskListChanged()),
this,
SLOT(updateApplications()));
fullUpdate();
}
/*!
Destructor
*/
TsModel::~TsModel()
{
qDeleteAll(mEntries);
}
/*!
Returns count of rows in model
\retval number of rows
*/
int TsModel::rowCount(const QModelIndex &parent) const
{
Q_UNUSED(parent);
return mEntries.count();
}
bool TsModel::insertRows(int row, int count, TsModelItem *item, const QModelIndex &parent)
{
beginInsertRows(parent, row, row+count-1);
mEntries.insert(row, item);
endInsertRows();
return true;
}
bool TsModel::removeRows(int row, int count, const QModelIndex &parent)
{
TsModelItem *oldItem = mEntries.at(row);
beginRemoveRows(parent, row, row + count - 1);
mEntries.removeAt(row);
delete oldItem;
endRemoveRows();
return true;
}
bool TsModel::moveRows(int oldPosition, int newPosition, const QModelIndex &parent)
{
beginMoveRows(parent, oldPosition, oldPosition, parent, newPosition);
mEntries.move(oldPosition, newPosition);
endMoveRows();
return true;
}
bool TsModel::updateRows(int row, TsModelItem *item)
{
TsModelItem *oldItem = mEntries.at(row);
mEntries[row] = item;
delete oldItem;
emit dataChanged(index(row),index(row));
return true;
}
/*!
Returns appropiate model's data
\param index model index
\param role which data role to return
\retval models data
*/
QVariant TsModel::data(const QModelIndex &index, int role) const
{
return index.isValid() ? entry(index)->data(role) : QVariant();
}
/*!
Activate one of model entries
*/
void TsModel::openApplication(const QModelIndex &index)
{
if (!index.isValid()) {
return;
}
entry(index)->open();
}
/*!
Close one of moder entries
*/
void TsModel::closeApplication(const QModelIndex &index)
{
if (!index.isValid() ||
!entry(index)->data(TsDataRoles::Closable).toBool()) {
return;
}
entry(index)->close();
}
/*!
Updates model with fresh entries
*/
void TsModel::updateApplications()
{
QList<TsTaskChange> changes(mApplicationService.changeList());
if (changes.count() == 0) {
return;
}
//check 1st item whether we have cancel change - if so reset model
if (changes[0].first.changeType() == TsTaskChangeInfo::EChangeCancel) {
fullUpdate();
return;
}
for (int iter(0); iter < changes.count(); iter++) {
switch (changes[iter].first.changeType()) {
case TsTaskChangeInfo::EChangeDelete :
removeRows(changes[iter].first.oldOffset(), 1);
break;
case TsTaskChangeInfo::EChangeInsert :
insertRows(changes[iter].first.newOffset(), 1,
new TsModelItem(changes[iter].second));
break;
case TsTaskChangeInfo::EChangeMove :
moveRows(changes[iter].first.oldOffset(), changes[iter].first.newOffset());
break;
case TsTaskChangeInfo::EChangeUpdate :
updateRows(changes[iter].first.oldOffset(),
new TsModelItem(changes[iter].second));
break;
default:
break;
}
}
}
/*!
reset model
*/
void TsModel::fullUpdate()
{
beginResetModel();
qDeleteAll(mEntries);
mEntries.clear();
getApplications();
endResetModel();
}
/*!
Read list of running applications
*/
void TsModel::getApplications()
{
//get all running applications and append to entries list
QList<TsTaskChange> tasks(mApplicationService.changeList(true));
foreach(TsTaskChange taskData, tasks) {
if (!taskData.second.isNull()) {
mEntries.append(new TsModelItem(taskData.second));
}
}
}
/*!
Returns an entry from model
\param index of entry in model
\retval pointer to an entry
*/
TsModelItem *TsModel::entry(const QModelIndex &index) const
{
return mEntries.at(index.row());
}