messagesender.cpp Example File
sendmessage/messagesender.cpp

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    #include "messagesender.h"

    #include <QDateTime>
    #include <QFileDialog>
    #include <QGroupBox>
    #include <QLabel>
    #include <QLayout>
    #include <QLineEdit>
    #include <QListWidget>
    #include <QMessageBox>
    #include <QPushButton>
    #include <QTextEdit>
    #include <QTimer>
    #include <QDebug>

    MessageSender::MessageSender(QWidget *parent, Qt::WindowFlags flags)
        : QWidget(parent, flags),
          toEdit(0),
          subjectEdit(0),
          textEdit(0),
          sendButton(0),
          removeButton(0),
          addButton(0),
          attachmentsList(0)
    {
        setWindowTitle(tr("Send Message"));

        toEdit = new QLineEdit;

        subjectEdit = new QLineEdit;

        QLabel *toLabel = new QLabel(tr("To"));
        toLabel->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);

        QLabel *subjectLabel = new QLabel(tr("Subject"));
        subjectLabel->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);

        QGridLayout *metaDataLayout = new QGridLayout;
        metaDataLayout->addWidget(toLabel, 0, 0);
        metaDataLayout->setAlignment(toLabel, Qt::AlignRight);
        metaDataLayout->addWidget(subjectLabel, 1, 0);
        metaDataLayout->setAlignment(subjectLabel, Qt::AlignRight);
        metaDataLayout->addWidget(toEdit, 0, 1);
        metaDataLayout->addWidget(subjectEdit, 1, 1);

        removeButton = new QPushButton(tr("Remove"));
        removeButton->setEnabled(false);

        connect(removeButton, SIGNAL(clicked()), this, SLOT(removeAttachment()));

        addButton = new QPushButton(tr("Add"));

        connect(addButton, SIGNAL(clicked()), this, SLOT(addAttachment()));

        QVBoxLayout *buttonLayout = new QVBoxLayout;
        buttonLayout->addStretch();
        buttonLayout->addWidget(removeButton);
        buttonLayout->addWidget(addButton);

        attachmentsList = new QListWidget;
        attachmentsList->setSelectionMode(QAbstractItemView::SingleSelection);

        connect(attachmentsList, SIGNAL(currentRowChanged(int)), this, SLOT(attachmentSelected(int)));

        QHBoxLayout *attachmentsLayout = new QHBoxLayout;
        attachmentsLayout->addWidget(attachmentsList);
        attachmentsLayout->addLayout(buttonLayout);

        QGroupBox *attachmentsGroup = new QGroupBox(tr("Attachments"));
        attachmentsGroup->setLayout(attachmentsLayout);

        textEdit = new QTextEdit;

        sendButton = new QPushButton(tr("Send"));

        connect(sendButton, SIGNAL(clicked()), this, SLOT(send()), Qt::QueuedConnection);

        QVBoxLayout *mainLayout = new QVBoxLayout(this);
        mainLayout->addLayout(metaDataLayout, 0);
        mainLayout->addWidget(textEdit, 2);
        mainLayout->addWidget(attachmentsGroup, 1);
        mainLayout->addWidget(sendButton, 0);
        mainLayout->setAlignment(sendButton, Qt::AlignRight);

        connect(&service, SIGNAL(stateChanged(QMessageServiceAction::State)), this, SLOT(stateChanged(QMessageServiceAction::State)));
    }

    MessageSender::~MessageSender()
    {
    }

    void MessageSender::removeAttachment()
    {
        delete attachmentsList->takeItem(attachmentsList->currentRow());
        if (attachmentsList->count() == 0) {
            removeButton->setEnabled(false);
        }
    }

    void MessageSender::addAttachment()
    {
        QString path(QFileDialog::getOpenFileName());
        if (!path.isEmpty()) {
            attachmentsList->addItem(new QListWidgetItem(path));
        }
    }

    void MessageSender::attachmentSelected(int)
    {
        removeButton->setEnabled(true);
    }

    void MessageSender::send()
    {
        QString to(toEdit->text());
        if (to.isEmpty()) {
            QMessageBox::warning(0, "Missing information", "Please enter a recipient address");
            return;
        }

        QString subject(subjectEdit->text());
        if (subject.isEmpty()) {
            QMessageBox::warning(0, "Missing information", "Please enter a subject");
            return;
        }

        QString text(textEdit->toPlainText());
        if (text.isEmpty()) {
            QMessageBox::warning(0, "Missing information", "Please enter a message");
            return;
        }

        QMessage message;
        message.setType(QMessage::Email);
        message.setTo(QMessageAddress(to, QMessageAddress::Email));
        message.setSubject(subject);

        message.setBody(text);

        if (attachmentsList->count()) {
            QStringList paths;
            for (int i = 0; i < attachmentsList->count(); ++i) {
                paths.append(attachmentsList->item(i)->text());
            }

            message.appendAttachments(paths);
        }

        if (service.send(message)) {
            sendButton->setEnabled(false);
            sendId = message.id();
        } else {
            QMessageBox::warning(0, "Failed", "Unable to send message");
        }
    }

    void MessageSender::stateChanged(QMessageServiceAction::State s)
    {
        if (s == QMessageServiceAction::Successful) {
            QMessageBox::information(0, "Success", "Message sent successfully");
            sendButton->setEnabled(true);
        } else if (s == QMessageServiceAction::Failed) {
            QMessageBox::warning(0, "Failed", "Unable to send message");

            if (!QMessageStore::instance()->removeMessage(sendId)) {
                qWarning() << "Unable to remove failed message:" << sendId.toString();
            }

            sendButton->setEnabled(true);
            sendId = QMessageId();
        }
    }