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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:
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*
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*/
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#include <hbnamespace.h>
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#include <nmmessageenvelope.h>
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#include "nmhswidgetlistmodel.h"
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#include "nmhswidgetlistmodelitem.h"
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/*!
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\class NmHsWidgetListModel
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\brief The NmHsWidgetListModel class represents data model for message list.
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@alpha
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The NmHsWidgetListModel class uses NmHsWidgetListModelItem class to represent data returned in its'
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data method to get all information needed for one list row for a widget by calling the method
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once.
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*/
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/*!
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Constructor
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*/
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NmHsWidgetListModel::NmHsWidgetListModel(QObject *parent)
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:QStandardItemModel(parent)
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{
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NM_FUNCTION;
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}
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/*!
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Destructor
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*/
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NmHsWidgetListModel::~NmHsWidgetListModel()
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{
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NM_FUNCTION;
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clear();
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}
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/*!
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Returns data specified by \a index. Only Qt::DisplayRole is supported in \a role.
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The refresh method must have been called before this method can return any real data.
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*/
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QVariant NmHsWidgetListModel::data(const QModelIndex &index, int role) const
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{
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NM_FUNCTION;
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QVariant qVariant;
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if (index.isValid() && Qt::DisplayRole == role) {
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NmHsWidgetListModelItem *item = static_cast<NmHsWidgetListModelItem*>(itemFromIndex(index));
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NmMessageEnvelope *mailbox = item->itemMetaData();
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qVariant = QVariant::fromValue(mailbox);
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}
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return qVariant;
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}
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/*!
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Create mailbox item
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\param mailbox
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*/
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NmHsWidgetListModelItem* NmHsWidgetListModel::createMessageListModelItem(const NmMessageEnvelope* envelope)
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{
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NM_FUNCTION;
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NmMessageEnvelope *newMeta = new NmMessageEnvelope(*envelope);
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NmHsWidgetListModelItem *item = new NmHsWidgetListModelItem();
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item->setItemMetaData(newMeta);
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item->setData(Hb::StandardItem, Hb::ItemTypeRole);
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return item;
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}
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/*!
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Function determines model index in which the new message should be inserted.
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*/
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int NmHsWidgetListModel::getInsertionIndex(
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const NmMessageEnvelope &envelope) const
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{
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NM_FUNCTION;
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int ret(NmNotFoundError);
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// Date+descending sort mode based comparison.
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// Go through model and compare sent times with QDateTime >= comparison operation.
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QList<QStandardItem*> items = findItems("*", Qt::MatchWildcard | Qt::MatchRecursive);
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int count(items.count());
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bool found(false);
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int i(0);
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while (i < count && !found) {
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QModelIndex index = items[i]->index();
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NmHsWidgetListModelItem *item = static_cast<NmHsWidgetListModelItem*>(itemFromIndex(index));
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found = envelope.sentTime() >= item->itemMetaData()->sentTime();
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if (found) {
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ret = i;
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}
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i++;
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}
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if (0 == count) {
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ret = NmNoError;
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}
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items.clear();
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return ret;
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}
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/*!
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Inserts given messages into the model
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*/
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void NmHsWidgetListModel::addMessages(const QList<NmMessageEnvelope*> &messageEnvs)
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{
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NM_FUNCTION;
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int orig_count = rowCount();
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foreach(NmMessageEnvelope* env, messageEnvs){
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int insertionIndex = getInsertionIndex(*env);
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NmHsWidgetListModelItem *newItem = createMessageListModelItem(env);
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insertRow(insertionIndex, newItem);
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}
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if( !messageEnvs.isEmpty() ){
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if (orig_count == 0){
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emit modelIsEmpty(false);
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}
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emit messagesAddedToModel(); //emit messages added to model
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}
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}
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/*!
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This refreshes the data of the model.
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NOTE: safe guard any call to this function with try-catch.
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*/
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void NmHsWidgetListModel::refresh(const QList<NmMessageEnvelope*> &envelopeList)
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{
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NM_FUNCTION;
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clear();
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foreach(NmMessageEnvelope *env, envelopeList){
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NmHsWidgetListModelItem *item = createMessageListModelItem(env);
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appendRow(item);
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}
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//As we refresh all data, emit signal in any case
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if( rowCount() == 0 ){
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emit modelIsEmpty(true);
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}else{
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emit modelIsEmpty(false);
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}
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}
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/*!
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Updates existing messages in model with given envelopes
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*/
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void NmHsWidgetListModel::updateMessages(const QList<NmMessageEnvelope*> &messageEnvs)
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{
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NM_FUNCTION;
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QList<QStandardItem*> modelItemList = findItems("*", Qt::MatchWildcard | Qt::MatchRecursive);
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foreach(NmMessageEnvelope *env, messageEnvs){
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foreach (QStandardItem *it, modelItemList){
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QModelIndex index = it->index();
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NmHsWidgetListModelItem *item = static_cast<NmHsWidgetListModelItem*>(itemFromIndex(index));
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if (env->messageId() == item->itemMetaData()->messageId()) {
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item->setItemMetaData(env);
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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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/*!
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Removes the given messages from the model
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*/
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void NmHsWidgetListModel::removeMessages(const QList<NmId> &messageIds)
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{
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NM_FUNCTION;
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foreach(NmId msgId, messageIds){
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//lets refresh the item list every time, so that it really is up to date after each iteration
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//(and the count stays valid!)
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QList<QStandardItem*> modelItemList = findItems("*", Qt::MatchWildcard | Qt::MatchRecursive);
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foreach(QStandardItem *it, modelItemList){
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QModelIndex index = it->index();
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NmHsWidgetListModelItem *item = static_cast<NmHsWidgetListModelItem*>(itemFromIndex(index));
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if (msgId == item->itemMetaData()->messageId()) {
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removeRow(index.row());
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break;
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}
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}
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}
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//if model is empty after removing messages, signal it.
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if( rowCount() == 0 ){
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emit modelIsEmpty(true);
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}
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}
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/*!
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Clears the model and emits modelIsEmpty signal
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*/
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void NmHsWidgetListModel::removeAllMessages()
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{
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clear();
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emit modelIsEmpty(true);
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}
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