incidenceattachmentmodel.cpp 6.44 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
/*
  Copyright (c) 2010 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
    Author: Stephen Kelly <stephen@kdab.com>

  This library is free software; you can redistribute it and/or modify it
  under the terms of the GNU Library General Public License as published by
  the Free Software Foundation; either version 2 of the License, or (at your
  option) any later version.

  This library is distributed in the hope that it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
  License for more details.

  You should have received a copy of the GNU Library General Public License
  along with this library; see the file COPYING.LIB.  If not, write to the
  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  02110-1301, USA.
*/

#include "incidenceattachmentmodel.h"

#include <EntityTreeModel>
#include <ItemFetchJob>
#include <ItemFetchScope>
#include <Monitor>

using namespace CalendarSupport;
using namespace Akonadi;

namespace CalendarSupport
{

class IncidenceAttachmentModelPrivate
{
    IncidenceAttachmentModelPrivate(IncidenceAttachmentModel *qq,
                                    const QPersistentModelIndex &modelIndex,
                                    const Akonadi::Item &item = Akonadi::Item())
Laurent Montel's avatar
Laurent Montel committed
39
        : q_ptr(qq), m_modelIndex(modelIndex), m_item(item), m_monitor(Q_NULLPTR)
40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221
    {
        if (modelIndex.isValid()) {
            QObject::connect(modelIndex.model(), SIGNAL(dataChanged(QModelIndex,QModelIndex)),
                             qq, SLOT(resetModel()));
        } else if (item.isValid()) {
            createMonitor();
            resetInternalData();
        }
        QHash<int, QByteArray> roleNames = qq->roleNames();
        roleNames.insert(IncidenceAttachmentModel::MimeTypeRole, "mimeType");
        roleNames.insert(IncidenceAttachmentModel::AttachmentUrl, "attachmentUrl");
        qq->setRoleNames(roleNames);
    }

    void resetModel()
    {
        Q_Q(IncidenceAttachmentModel);
        q->beginResetModel();
        resetInternalData();
        q->endResetModel();
        Q_EMIT q->rowCountChanged();
    }

    void itemFetched(Akonadi::Item::List list)
    {
        Q_ASSERT(list.size() == 1);
        setItem(list.first());
    }

    void setItem(const Akonadi::Item &item);

    void createMonitor()
    {
        if (m_monitor) {
            return;
        }

        m_monitor = new Akonadi::Monitor(q_ptr);
        m_monitor->setItemMonitored(m_item);
        m_monitor->itemFetchScope().fetchFullPayload(true);
        QObject::connect(m_monitor, SIGNAL(itemChanged(Akonadi::Item,QSet<QByteArray>)),
                         q_ptr, SLOT(resetModel()));
        QObject::connect(m_monitor, SIGNAL(itemRemoved(Akonadi::Item)),
                         q_ptr, SLOT(resetModel()));
    }

    void resetInternalData()
    {
        if (m_incidence) {
            m_incidence->clearTempFiles();
        }
        Item item = m_item;
        if (m_modelIndex.isValid()) {
            item = m_modelIndex.data(EntityTreeModel::ItemRole).value<Akonadi::Item>();
        }

        if (!item.isValid() || !item.hasPayload<KCalCore::Incidence::Ptr>()) {
            m_incidence = KCalCore::Incidence::Ptr();
            return;
        }
        m_incidence = item.payload<KCalCore::Incidence::Ptr>();
    }

    Q_DECLARE_PUBLIC(IncidenceAttachmentModel)
    IncidenceAttachmentModel *const q_ptr;

    QModelIndex m_modelIndex;
    Akonadi::Item m_item;
    KCalCore::Incidence::Ptr m_incidence;
    Akonadi::Monitor *m_monitor;
};

}

IncidenceAttachmentModel::IncidenceAttachmentModel(const QPersistentModelIndex &modelIndex,
        QObject *parent)
    : QAbstractListModel(parent),
      d_ptr(new IncidenceAttachmentModelPrivate(this, modelIndex))
{

}

IncidenceAttachmentModel::IncidenceAttachmentModel(const Akonadi::Item &item, QObject *parent)
    : QAbstractListModel(parent),
      d_ptr(new IncidenceAttachmentModelPrivate(this, QModelIndex(), item))
{

}

IncidenceAttachmentModel::IncidenceAttachmentModel(QObject *parent)
    : QAbstractListModel(parent),
      d_ptr(new IncidenceAttachmentModelPrivate(this, QModelIndex()))
{

}

IncidenceAttachmentModel::~IncidenceAttachmentModel()
{
    delete d_ptr;
}

KCalCore::Incidence::Ptr IncidenceAttachmentModel::incidence() const
{
    Q_D(const IncidenceAttachmentModel);
    return d->m_incidence;
}

void IncidenceAttachmentModel::setIndex(const QPersistentModelIndex &modelIndex)
{
    Q_D(IncidenceAttachmentModel);
    beginResetModel();
    d->m_modelIndex = modelIndex;
    d->m_item = Akonadi::Item();
    d->resetInternalData();
    endResetModel();
    Q_EMIT rowCountChanged();
}

void IncidenceAttachmentModel::setItem(const Akonadi::Item &item)
{
    Q_D(IncidenceAttachmentModel);
    if (!item.hasPayload<KCalCore::Incidence::Ptr>()) {
        ItemFetchJob *job = new ItemFetchJob(item);
        job->fetchScope().fetchFullPayload(true);
        connect(job, SIGNAL(itemsReceived(Akonadi::Item::List)),
                SLOT(itemFetched(Akonadi::Item::List)));
        return;
    }
    d->setItem(item);
}

void IncidenceAttachmentModelPrivate::setItem(const Akonadi::Item &item)
{
    Q_Q(IncidenceAttachmentModel);
    q->beginResetModel();
    m_modelIndex = QModelIndex();
    m_item = item;
    createMonitor();
    resetInternalData();
    q->endResetModel();
    Q_EMIT q->rowCountChanged();
}

int IncidenceAttachmentModel::rowCount(const QModelIndex &) const
{
    Q_D(const IncidenceAttachmentModel);
    if (!d->m_incidence) {
        return 0;
    } else {
        return d->m_incidence->attachments().size();
    }
}

QVariant IncidenceAttachmentModel::data(const QModelIndex &index, int role) const
{
    Q_D(const IncidenceAttachmentModel);
    if (!d->m_incidence) {
        return QVariant();
    }

    KCalCore::Attachment::Ptr attachment = d->m_incidence->attachments().at(index.row());
    switch (role) {
    case Qt::DisplayRole:
        return attachment->label();
    case AttachmentDataRole:
        return attachment->decodedData();
    case MimeTypeRole:
        return attachment->mimeType();
    case AttachmentUrl:
        return d->m_incidence->writeAttachmentToTempFile(attachment);
    }
    return QVariant();
}

QVariant IncidenceAttachmentModel::headerData(int section,
        Qt::Orientation orientation,
        int role) const
{
    return QAbstractItemModel::headerData(section, orientation, role);
}

#include "moc_incidenceattachmentmodel.cpp"