ContactViewer.cpp Example File

    /* Copyright (c) 2012, 2013  BlackBerry Limited.
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    * http://www.apache.org/licenses/LICENSE-2.0
    *
    * Unless required by applicable law or agreed to in writing, software
    * distributed under the License is distributed on an "AS IS" BASIS,
    * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    * See the License for the specific language governing permissions and
    * limitations under the License.
    */

    #include "ContactViewer.hpp"

    #include <bb/pim/contacts/Contact>

    using namespace bb::pim::contacts;

    ContactViewer::ContactViewer(ContactService *service, QObject *parent)
        : QObject(parent)
        , m_contactService(service)
        , m_contactId(-1)
    {
        // Ensure to invoke the contactsChanged() method whenever a contact has been changed
        bool ok = connect(m_contactService, SIGNAL(contactsChanged(QList<int>)), SLOT(contactsChanged(QList<int>)));
        Q_ASSERT(ok);
        Q_UNUSED(ok);
    }

    void ContactViewer::updateContact()
    {
        // Store previous values
        const QString oldFirstName = m_firstName;
        const QString oldLastName = m_lastName;
        const QDateTime oldBirthday = m_birthday;
        const QString oldEmail = m_email;

        // Fetch new values from persistent storage
        const Contact contact = m_contactService->contactDetails(m_contactId);

        m_firstName = contact.firstName();
        m_lastName = contact.lastName();

        m_birthday = QDateTime();
        const QList<ContactAttribute> dateAttributes = contact.filteredAttributes(AttributeKind::Date);
        foreach (const ContactAttribute &dateAttribute, dateAttributes) {
            if (dateAttribute.subKind() == AttributeSubKind::DateBirthday)
                m_birthday = dateAttribute.valueAsDateTime();
        }

        m_email.clear();
        const QList<ContactAttribute> emails = contact.emails();
        if (!emails.isEmpty())
            m_email = emails.first().value();

        // Check whether values have changed
        if (oldFirstName != m_firstName)
            emit firstNameChanged();

        if (oldLastName != m_lastName)
            emit lastNameChanged();

        if (oldBirthday != m_birthday)
            emit birthdayChanged();

        if (oldEmail != m_email)
            emit emailChanged();
    }

    void ContactViewer::contactsChanged(const QList<int> &contactIds)
    {
        /**
         * Call updateContact() only if the contact we are currently displaying
         * has been changed.
         */
        if (contactIds.contains(m_contactId))
            updateContact();
    }

    void ContactViewer::setContactId(ContactId contactId)
    {
        if (m_contactId == contactId)
            return;

        m_contactId = contactId;

        // Trigger a refetch of the contact for the new ID
        updateContact();
    }

    QString ContactViewer::firstName() const
    {
        return m_firstName;
    }

    QString ContactViewer::lastName() const
    {
        return m_lastName;
    }

    QDateTime ContactViewer::birthday() const
    {
        return m_birthday;
    }

    QString ContactViewer::formattedBirthday() const
    {
        if (!m_birthday.isValid())
            return tr("n/a");
        else
            return m_birthday.date().toString();
    }

    QString ContactViewer::email() const
    {
        return m_email;
    }