readmail.cpp

Qtopia下的邮件处理程序

        if ( inbox == (mail->status(EFlag_Incoming) > 0) ) {
	    updateView();
        } else {
	    update( mailView );
        }

        updateButtons();
    }
}

//deletes item, tries bringing up next or previous, exits if unsucessful
void ReadMail::deleteItem()
{
    EmailListItem *item = (EmailListItem *) mailView->currentItem();
    emit removeItem(item);
}

void ReadMail::updateButtons()
{
    EmailListItem *current = (EmailListItem *) mailView->currentItem();

    if ( !current || !mailView->isItemSelected( current ) ) {
	close();
	return;
    }

    /*  Safety precaution.  The mail might have been moved internally/externally
	away from the mailbox.  Verify that we actually still have access to the
	same mail   */
    mail = current->mail();
    if ( mail->uuid() != lastMailUuid ) {
	update( mailView );
	return;
    }

    QString mailbox = mailView->currentMailbox();

    if ( hasGet(mailbox) ) {
	bool off = mail->status(EFlag_Downloaded) || receiving;
        qDebug() << "getThisMailButton off" << off;
	getThisMailButton->setVisible( !off );
    } else {
        qDebug() << "!hasGet";
    }

    if ( hasSend(mailbox) ) {
	if ( mail->status(EFlag_Sent) || sending ) {
	    sendThisMailButton->setVisible(false);
	} else if ( mail->unfinished() ) {
	    sendThisMailButton->setVisible(false);
	} else {
	    sendThisMailButton->setVisible(true);
	}
    }

    if ( hasEdit(mailbox) )
	modifyButton->setVisible( !( mail->status(EFlag_Sent) || sending ) );

    attachmentsButton->setVisible( mail->messagePartCount() );

    nextButton->setVisible(mailView->row(current) + 1 < mailView->rowCount());
    previousButton->setVisible(mailView->row(current) > 0);

    if ( current )
	current->updateState();

    if (sending || receiving)
	progressLabel->show();
    else
	progressLabel->hide();
}

void ReadMail::shiftText()
{
    plainTxt = !plainTxt;

    if ( plainTxt ) {
	QFont font("Fixed", 16, QFont::Normal); // No tr
	font.setFixedPitch( true );
	emailView->setFont( font );
    } else {
	QFont font;
	emailView->setFont( font );
    }

    updateView();
}

void ReadMail::viewAttachments()
{
    ViewAtt dlg(mail, mail->status(EFlag_Incoming));
#ifdef QTOPIA_DESKTOP
    dlg.exec();
#else
    QtopiaApplication::execDialog(&dlg);
#endif
}

void ReadMail::viewMms()
{
#ifdef QTOPIA_PHONE
#ifndef QTOPIA_NO_MMS
    QString start = "<presentation-part>";
    QString content = mail->header("Content-Type");
    QStringList params = content.split(';');
    QStringList::Iterator it;
    for (it = params.begin(); it != params.end(); ++it) {
	int pos = (*it).indexOf("start=");
	if (pos > 0) {
	    start = (*it).mid(pos+6);
	    if (start[0] == '\"')
		start = start.mid(1);
	    if (start[start.length()-1] == '\"')
		start.truncate(start.length()-1);
	    break;
	}
    }

    if (!smilView) {
	smilView = new SmilView(views);
        smilView->setGeometry(views->rect()); // will be using rect() to tweak smil layout
	connect(smilView, SIGNAL(transferRequested(SmilDataSource*, const QString&)),
		this, SLOT(requestTransfer(SmilDataSource*, const QString&)));
	connect(smilView, SIGNAL(transferCancelled(SmilDataSource*, const QString&)),
		this, SLOT(cancelTransfer(SmilDataSource*, const QString&)));
	connect(smilView, SIGNAL(finished()), this, SLOT(mmsFinished()));
	views->addWidget(smilView);
	smilView->setFocusPolicy(Qt::StrongFocus);
	smilView->installEventFilter(this);
	QSoftMenuBar::setLabel(smilView, QSoftMenuBar::menuKey(), QSoftMenuBar::NoLabel);
	QSoftMenuBar::setLabel(smilView, Qt::Key_Select, QSoftMenuBar::Next);
    }

    bool ok = false;
    for ( uint i = 0; i < mail->messagePartCount(); i++ ) {
	MailMessagePart &part = mail->messagePartAt( i );
	if (part.contentID() == start) {
	    QString smil = part.decodedBody();
            qWarning() << smil;
	    smilView->setSource(smil);
	    ok = true;
	    break;
	}
    }
    if (ok && smilView && smilView->rootElement()) {
	tweakSmil(smilView->rootElement());
	smilView->play();
	views->setCurrentWidget(smilView);
    } else {
	QMessageBox::warning(this, tr("Cannot view MMS"),
	    tr("<qt>Cannot play improperly formatted MMS</qt>"), QMessageBox::Ok, QMessageBox::NoButton);
    }
#endif
#endif
}

#ifdef QTOPIA_PHONE
#ifndef QTOPIA_NO_MMS
void ReadMail::tweakSmil(SmilElement *smil)
{
    // Try to make sure the layout works on our display
    SmilElement *layout = smil->findChild(QString(), "layout", true);
    if (!layout)
	return;

    QRect rl = rect();
    SmilElement *rootLayout = layout->findChild(QString(), "root-layout");
    if (rootLayout) {
	if (rootLayout->rect().width() > smilView->width()
	    || rootLayout->rect().height() > smilView->height()) {
	    rootLayout->setRect(QRect(0, 0, smilView->width(), smilView->height()));
	}
	rl = rootLayout->rect();
    }

    SmilElement *imageLayout = layout->findChild("Image", "region");
    if (!imageLayout)
	imageLayout = layout->findChild("image", "region");

    SmilElement *textLayout = layout->findChild("Text", "region");
    if (!textLayout)
	textLayout = layout->findChild("text", "region");

    if (imageLayout && textLayout) {
	QRect il = imageLayout->rect();
	QRect tl = textLayout->rect();
	if (il.bottom() > tl.top() || il.right() > rl.right()
		|| tl.right() > rl.right() || il.bottom() > rl.bottom()
		|| tl.bottom() > rl.bottom()) {
	    // Not going to fit - use our preferred sizes.
	    il = tl = rl;
	    il.setBottom(il.top() + rl.height()*2/3);
	    tl.setTop(il.bottom()+1);
	    tl.setHeight(rl.height() - il.height());
	    imageLayout->setRect(il);
	    textLayout->setRect(tl);
	    qDebug() << "Adjusting smil layout" << il<< tl;
	}
    }
}

void ReadMail::advanceMmsSlide()
{
    // Try to advance to the next slide
    qDebug("Try to advance");
    SmilElement *smil = smilView->rootElement();
    if (!smil)
	return;
    SmilElement *body = smil->findChild(QString(), "body", true);
    if (!body)
	return;
    SmilElementList::ConstIterator it;
    for (it = body->children().begin(); it != body->children().end(); ++it) {
	SmilElement *e = *it;
	if (e->name() == "par") {
	    if (e->state() == SmilElement::Active) {
		// This should be the current active slide
		qDebug() << " Advancing element" << e->name();
		SmilTimingAttribute *at = (SmilTimingAttribute*)e->module("Timing");
		Duration d(at->startTime.elapsed());	// i.e. end now.
		e->setCurrentEnd(d);
		break;
	    }
	}
    }
}
#endif
#endif

void ReadMail::mmsFinished()
{
#ifdef QTOPIA_PHONE
#ifndef QTOPIA_NO_MMS
    qDebug("mmsFinished");
    views->setCurrentWidget(emailView);
#endif
#endif
}

void ReadMail::requestTransfer(SmilDataSource*
#ifdef QTOPIA_PHONE
 dataSource, const QString &src
#else
 , const QString&
#endif
    )
{
#ifdef QTOPIA_PHONE
#ifndef QTOPIA_NO_MMS
    bool isId = false;
    QString source = src;
    if (source.startsWith("cid:")) {
	source = source.mid(4);
	isId = true;
    }
    for ( uint i = 0; i < mail->messagePartCount(); i++ ) {
	MailMessagePart &part = mail->messagePartAt( i );
	if ((isId && part.contentID() == source)
	    || part.contentLocation() == source) {
	    qDebug() << "Loading" << src;
	    dataSource->setMimeType(part.contentType());
	    QBuffer *data = new QBuffer();
            data->setData(part.decodedBody().toLatin1());
	    data->open(QIODevice::ReadOnly);
            dataSource->setDevice(data);
	    if (!transfers)
		transfers = new QMap<SmilDataSource*,QIODevice*>;
	    (*transfers)[dataSource] = data;
	    break;
	}
    }
#endif
#endif
}

void ReadMail::cancelTransfer(SmilDataSource *dataSource, const QString &src)
{
    QString unused = src;
#if defined(QTOPIA_PHONE) && !defined(QTOPIA_NO_MMS)
    if (!transfers)
	return;
    if (transfers->contains(dataSource))
        transfers->take(dataSource)->deleteLater();
#else
    Q_UNUSED(dataSource)
#endif
}


void ReadMail::reply()
{
    emit resendRequested(*mail, 1);
}

void ReadMail::replyAll()
{
    emit resendRequested(*mail, 2);
}

/*  Need to install the files first in order for them to be available
    as a mimecoded attachment.  This does however make all the attached files
    appear in thew Documents tab, which may or may not be logical */
void ReadMail::forward()
{
//    MailMessagePart part;
//    for ( uint i = 0; i < mail->messagePartCount(); i++ ) {
//        part = mail->messagePartAt( i );
//        mail->setAttachmentInstalled(part.name(), true );
//    }

    emit resendRequested(*mail, 3);
}

void ReadMail::setStatus(int id)
{
    uint prevStatus = mail->allStatusFields();

    switch( id ) {
	case 1:
	{
	    mail->setStatus(EFlag_Replied | EFlag_RepliedAll | EFlag_Forwarded, false);
	    mail->setStatus(EFlag_Read, false);
	    break;
	}
	case 2:
	{
	    mail->setStatus(EFlag_Replied | EFlag_RepliedAll | EFlag_Forwarded, false);
	    mail->setStatus(EFlag_Replied, true );
	    break;
	}
	case 3:	
	{
	    mail->setStatus(EFlag_Replied | EFlag_RepliedAll, false);
	    mail->setStatus(EFlag_Forwarded, true);
	    break;
	}
	case 4:	mail->setStatus(EFlag_Sent, true ); break;
	case 5: mail->setStatus(EFlag_Sent, false ); break;
    }

    if ( mail->allStatusFields() != prevStatus)
	mail->setDirty( true );

    updateButtons();
}

void ReadMail::modify()
{
    emit modifyRequested(mail);
}

void ReadMail::getThisMail()
{
    emit getMailRequested(mail);
}

void ReadMail::sendThisMail()
{
    emit sendMailRequested(mail);
}

void ReadMail::isSending(bool on)
{
    sending = on;
    if ( isVisible() )
	updateButtons();
}

void ReadMail::isReceiving(bool on)
{
    receiving = on;
    if ( isVisible() )
	updateButtons();
}

void ReadMail::setProgressText(const QString &txt)
{
//    qDebug("Setting progress text: %s", txt.toLatin1());
    progressLabel->setText(txt);
    if (txt.isNull())
	progressLabel->hide();
}

void ReadMail::initImages()
{
    if (initialized)
	return;
    
    initialized = true;
    // Add the predefined smiley images for EMS messages.
    emailView->setResource( QUrl( "x-sms-predefined:ironic" ),
			    QVariant( QImage( ":image/smiley/ironic" ) ) );
    emailView->setResource( QUrl( "x-sms-predefined:glad" ),
			    QVariant( QImage( ":image/smiley/glad" ) ) );
    emailView->setResource( QUrl( "x-sms-predefined:skeptical" ),
			    QVariant( QImage( ":image/smiley/skeptical" ) ) );
    emailView->setResource( QUrl( "x-sms-predefined:sad" ),
			    QVariant( QImage( ":image/smiley/sad" ) ) );
    emailView->setResource( QUrl( "x-sms-predefined:wow" ),
			    QVariant( QImage( ":image/smiley/wow" ) ) );
    emailView->setResource( QUrl( "x-sms-predefined:crying" ),
			    QVariant( QImage( ":image/smiley/crying" ) ) );
    emailView->setResource( QUrl( "x-sms-predefined:winking" ),
			    QVariant( QImage( ":image/smiley/winking" ) ) );
    emailView->setResource( QUrl( "x-sms-predefined:laughing" ),
			    QVariant( QImage( ":image/smiley/laughing" ) ) );
    emailView->setResource( QUrl( "x-sms-predefined:indifferent" ),
			    QVariant( QImage( ":image/smiley/indifferent" ) ) );
    emailView->setResource( QUrl( "x-sms-predefined:kissing" ),
			    QVariant( QImage( ":image/smiley/kissing" ) ) );
    emailView->setResource( QUrl( "x-sms-predefined:confused" ),
			    QVariant( QImage( ":image/smiley/confused" ) ) );
    emailView->setResource( QUrl( "x-sms-predefined:tongue" ),
			    QVariant( QImage( ":image/smiley/tongue" ) ) );
    emailView->setResource( QUrl( "x-sms-predefined:angry" ),
			    QVariant( QImage( ":image/smiley/angry" ) ) );
    emailView->setResource( QUrl( "x-sms-predefined:glasses" ),
			    QVariant( QImage( ":image/smiley/glasses" ) ) );
    emailView->setResource( QUrl( "x-sms-predefined:devil" ),
			    QVariant( QImage( ":image/smiley/devil" ) ) );
}

bool ReadMail::hasGet(const QString &mailbox)
{
    return mailbox.startsWith("inbox");
}

bool ReadMail::hasSend(const QString &mailbox)
{
    return mailbox.startsWith("outbox");
}

bool ReadMail::hasEdit(const QString &mailbox)
{
    return mailbox.startsWith("outbox") || mailbox.startsWith("drafts"); // No tr
}

bool ReadMail::hasReply(const QString &mailbox)
{
    return !mailbox.startsWith("outbox");
}