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