viewmail.cpp

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#include "composemail.h"
#include "viewmail.h"

#include <libmailwrapper/settings.h>
#include <libmailwrapper/abstractmail.h>
#include <libmailwrapper/mailtypes.h>

/* OPIE */
#include <opie2/odebug.h>
#include <opie2/ofiledialog.h>
#include <opie2/oimagescrollview.h>
#include <qpe/config.h>
#include <qpe/qpeapplication.h>

/* QT */
#include <qtextbrowser.h>
#include <qmessagebox.h>
#include <qtextstream.h>
#include <qaction.h>
#include <qpopupmenu.h>
#include <qfile.h>
#include <qlayout.h>
#include <qstylesheet.h>

using namespace Opie::Ui;
using namespace Opie::Core;

AttachItem::AttachItem(QListView * parent,QListViewItem *after, const QString&mime,const QString&desc,const QString&file,
                       const QString&fsize,int num,const QValueList<int>&path)
        : QListViewItem(parent,after),_partNum(num)
{
    _path=path;
    setText(0, mime);
    setText(1, desc);
    setText(2, file);
    setText(3, fsize);
}

AttachItem::AttachItem(QListViewItem * parent,QListViewItem *after, const QString&mime,const QString&desc,const QString&file,
                       const QString&fsize,int num,const QValueList<int>&path)
        : QListViewItem(parent,after),_partNum(num)
{
    _path=path;
    setText(0, mime);
    setText(1, desc);
    setText(2, file);
    setText(3, fsize);
}

bool AttachItem::isParentof(const QValueList<int>&path)
{
    /* if not set, then no parent */
    if (path.count()==0||_path.count()==0) return false;
    /* the parent must have one digit less then a child */
    if (path.count()!=_path.count()+1) return false;
    for (unsigned int i=0; i < _path.count();++i)
    {
        if (_path[i]!=path[i]) return false;
    }
    return true;
}

AttachItem* ViewMail::searchParent(const QValueList<int>&path)
{
    QListViewItemIterator it( attachments );
    for ( ; it.current(); ++it )
    {
        AttachItem*ati = (AttachItem*)it.current();
        if (ati->isParentof(path)) return ati;
    }
    return 0;
}

AttachItem* ViewMail::lastChild(AttachItem*parent)
{
    if (!parent) return 0;
    AttachItem* item = (AttachItem*)parent->firstChild();
    if (!item) return item;
    AttachItem*temp=0;
    while( (temp=(AttachItem*)item->nextSibling()))
    {
        item = temp;
    }
    return item;
}

void ViewMail::setBody(const RecBodyP&body )
{

    m_body = body;
    m_mail[2] = body->Bodytext();
    attachbutton->setEnabled(body->Parts().count()>0);
    attachments->setEnabled(body->Parts().count()>0);
    if (body->Parts().count()==0)
    {
        return;
    }
    AttachItem * curItem=0;
    AttachItem * parentItem = 0;
    QString type=body->Description()->Type()+"/"+body->Description()->Subtype();
    QString desc,fsize;
    double s = body->Description()->Size();
    int w;
    w=0;

    while (s>1024)
    {
        s/=1024;
        ++w;
        if (w>=2) break;
    }

    QString q="";
    switch(w)
    {
    case 1:
        q="k";
        break;
    case 2:
        q="M";
        break;
    default:
        break;
    }

    {
        /* I did not found a method to make a CONTENT reset on a QTextStream
           so I use this construct that the stream will re-constructed in each
           loop. To let it work, the textstream is packed into a own area of
           code is it will be destructed after finishing its small job.
        */
        QTextOStream o(&fsize);
        if (w>0) o.precision(2); else o.precision(0);
        o.setf(QTextStream::fixed);
        o << s << " " << q << "Byte";
    }

    curItem=new AttachItem(attachments,curItem,type,"Mailbody","",fsize,-1,body->Description()->Positionlist());
    QString filename = "";

    for (unsigned int i = 0; i < body->Parts().count();++i)
    {
        filename = "";
        type = body->Parts()[i]->Type()+"/"+body->Parts()[i]->Subtype();
        part_plist_t::ConstIterator it = body->Parts()[i]->Parameters().begin();
        for (;it!=body->Parts()[i]->Parameters().end();++it)
        {
            odebug << it.key() << oendl;
            if (it.key().lower()=="name")
            {
                filename=it.data();
            }
        }
        s = body->Parts()[i]->Size();
        w = 0;
        while (s>1024)
        {
            s/=1024;
            ++w;
            if (w>=2) break;
        }
        switch(w)
        {
        case 1:
            q="k";
            break;
        case 2:
            q="M";
            break;
        default:
            q="";
            break;
        }
        QTextOStream o(&fsize);
        if (w>0) o.precision(2); else o.precision(0);
        o.setf(QTextStream::fixed);
        o << s << " " << q << "Byte";
        desc = body->Parts()[i]->Description();
        parentItem = searchParent(body->Parts()[i]->Positionlist());
        if (parentItem)
        {
            AttachItem*temp = lastChild(parentItem);
            if (temp) curItem = temp;
            curItem=new AttachItem(parentItem,curItem,type,desc,filename,fsize,i,body->Parts()[i]->Positionlist());
            attachments->setRootIsDecorated(true);
            curItem = parentItem;
        }
        else
        {
            curItem=new AttachItem(attachments,curItem,type,desc,filename,fsize,i,body->Parts()[i]->Positionlist());
        }
    }
}


void ViewMail::slotShowHtml( bool state )
{
    m_showHtml = state;
    m_lasttextpart=-2;
    setMainText();
}

void ViewMail::slotItemClicked( QListViewItem * item , const QPoint & point, int )
{
    if (!item )
        return;

    if (  ( ( AttachItem* )item )->Partnumber() == -1 )
    {
        setMainText();
        return;
    }
    QPopupMenu *menu = new QPopupMenu();
    int ret=0;

    if ( item->text( 0 ).left( 5 ) == "text/" || item->text(0)=="message/rfc822" )
    {
        menu->insertItem( tr( "Show Text" ), 1 );
    }
    if (item->text(0).left(6)=="image/") {
        menu->insertItem(tr("Display image preview"),2);
    }
    menu->insertItem( tr( "Save Attachment" ),  0 );
    menu->insertSeparator(1);

    ret = menu->exec( point, 0 );

    switch(ret)
    {
    case 0:
        {
            MimeTypes types;
            types.insert( "all", "*" );
            QString str = OFileDialog::getSaveFileName( 1,
                          "/", item->text( 2 )  , types, 0 );

            if( !str.isEmpty() )
            {
                encodedString*content = m_recMail->Wrapper()->fetchDecodedPart( m_recMail, m_body->Parts()[ ( ( AttachItem* )item )->Partnumber() ] );
                if (content)
                {
                    QFile output(str);
                    output.open(IO_WriteOnly);
                    output.writeBlock(content->Content(),content->Length());
                    output.close();
                    delete content;
                }
            }
        }
        break ;

    case 2:
        {
            if (m_lastimagepart== (( AttachItem* )item )->Partnumber()) {
                if (m_lastdlg) {
                    setUpdatesEnabled(false);
                    browser->hide();
                    m_lastdlg->show();
                    setUpdatesEnabled(true);
                    return;
                }
            }
            QString tmpfile = QString("/tmp/opiemail-image-%1").arg(_icounter++);
            encodedString*content = m_recMail->Wrapper()->fetchDecodedPart( m_recMail, m_body->Parts()[ ( ( AttachItem* )item )->Partnumber() ] );
            if (content && content->Length()) {
                QFile output(tmpfile);
                output.open(IO_WriteOnly);
                output.writeBlock(content->Content(),content->Length());
                output.close();
                delete content;
                if (!m_PicsInline) {
                    MailImageDlg iview("");
                    iview.setName(tmpfile);
                    QPEApplication::execDialog(&iview);
                } else {
                    if (!m_lastdlg) {
                        m_lastdlg=new Opie::MM::OImageScrollView("",browser->parentWidget(),false);
                        m_lastdlg->setAutoScale(true);
                    }
                    //m_lastdlg->setImage("");
                    m_lastdlg->setImage(tmpfile);
                    browser->hide();
                    m_lastdlg->show();
                }
                output.remove();
            } else {
                QMessageBox::critical(this, tr("Reading attachment"), tr("Could not read content of attachment"));
            }
            m_lastimagepart=(( AttachItem* )item )->Partnumber();
        }
        break;
    case 1:
        if (  ( ( AttachItem* )item )->Partnumber() == -1 )
        {
            setMainText();
        }
        else
        {
            if (  m_recMail->Wrapper() != 0l )
            { // make sure that there is a wrapper , even after delete or simular actions
                if (m_lastdlg) {
                    m_lastdlg->hide();
                    browser->show();
                }
                if (m_lasttextpart == ( ( AttachItem* )item )->Partnumber() ) return;
                m_lasttextpart = ( ( AttachItem* )item )->Partnumber();
                QString s = m_recMail->Wrapper()->fetchTextPart( m_recMail, m_body->Parts()[ ( ( AttachItem* )item )->Partnumber() ] );;
                if (item->text(0).right(4)!="html") {
                    s = QString("<html><body>\n<font face=fixed>%1</font></body></html>").arg(QStyleSheet::convertFromPlainText(s));
                }
                browser->setText(s);
            }
        }
        break;
    }
    delete menu;
}


void ViewMail::setMail(const RecMailP&mail )
{

    m_recMail = mail;

    m_mail[0] = mail->getFrom();
    m_mail[1] = mail->getSubject();
    m_mail[3] = mail->getStringDate();
    m_mail[4] = mail->Msgid();

    m_mail2[0] = mail->To();
    m_mail2[1] = mail->CC();
    m_mail2[2] = mail->Bcc();

    setCaption(tr("E-Mail by %1").arg( m_mail[0] ) );
    m_lasttextpart=-2;
    setMainText();
}



ViewMail::ViewMail( QWidget *parent, const char *name, WFlags fl)
        : ViewMailBase(parent, name, fl), _inLoop(false)
{
    m_gotBody = false;
    deleted = false;

    connect( reply, SIGNAL(activated()), SLOT(slotReply()));
    connect( forward, SIGNAL(activated()), SLOT(slotForward()));
    connect( deleteMail, SIGNAL( activated() ),  SLOT( slotDeleteMail() ) );
    connect( showHtml, SIGNAL( toggled(bool) ), SLOT( slotShowHtml(bool) ) );
    connect( showPicsInline, SIGNAL( toggled(bool) ), SLOT( slotImageInline(bool) ) );

    attachments->setEnabled(m_gotBody);
    connect( attachments,  SIGNAL( clicked(QListViewItem*,const QPoint&, int) ), SLOT( slotItemClicked(QListViewItem*,const QPoint&, int) ) );
    m_lastdlg = 0;
    _icounter = 0;
    m_lastimagepart = -1;
    m_lasttextpart = -2;

    readConfig();
    attachments->setSorting(-1);
}

void ViewMail::slotImageInline(bool how)
{
    Config cfg( "mail" );
    cfg.writeEntry( "showPicsInline", how);
    m_PicsInline = how;
    if (m_lastdlg&&!how) {
        browser->show();
        m_lastdlg->hide();
        m_lastdlg->reparent(0,QPoint(0,0),false);
        delete m_lastdlg;
        m_lastdlg = 0;
        m_lastimagepart = -1;
    }
}

void ViewMail::readConfig()
{
    Config cfg( "mail" );
    cfg.setGroup( "Settings" );
    m_showHtml =  cfg.readBoolEntry( "showHtml", false );
    m_PicsInline = cfg.readBoolEntry( "showPicsInline", true );
    showPicsInline->setOn(m_PicsInline);
    showHtml->setOn( m_showHtml );
}

void ViewMail::setMainText()
{
    QString toString;
    QString ccString;
    QString bccString;
    QString mailHtml;

    if (m_lastdlg) {
        m_lastdlg->hide();
    }
    browser->show();
    if (m_lasttextpart == -1) return;
    m_lasttextpart = -1;
    for ( QStringList::Iterator it = ( m_mail2[0] ).begin(); it != ( m_mail2[0] ).end(); ++it )
    {
        toString += (*it);
    }
    for ( QStringList::Iterator it = ( m_mail2[1] ).begin(); it != ( m_mail2[1] ).end(); ++it )
    {
        ccString += (*it);
    }
    for ( QStringList::Iterator it = ( m_mail2[2] ).begin(); it != ( m_mail2[2] ).end(); ++it )
    {
        bccString += (*it);
    }
    browser->setTextFormat(Qt::RichText);
    mailHtml = "<html><body>"
                 "<table width=\"100%\" border=\"0\"><tr bgcolor=\"#FFDD76\"><td>"
                 "<div align=left><b>" + deHtml(m_mail[1]) + "</b></div>"
                 "</td></tr><tr bgcolor=\"#EEEEE6\"><td>"
                 "<b>" + tr( "From" ) + ": </b><font color=#6C86C0>" + deHtml( m_mail[0] ) + "</font><br>"
                 "<b>" + tr(  "To" ) + ": </b><font color=#6C86C0>" + deHtml( toString ) + "</font><br><b>" +
                 tr( "Cc" ) + ": </b>" + deHtml( ccString ) + "<br>"
                 "<b>" + tr( "Date" ) + ": </b> " +  m_mail[3] +
                 "</td></tr></table>";
    if ( !m_showHtml ) {
        browser->setText( mailHtml+"<font face=fixed>" + QStyleSheet::convertFromPlainText(m_mail[2]) + "</font></body></html>" );
    } else {
        browser->setText(mailHtml+m_mail[2].simplifyWhiteSpace()+"</html>");
    }
    // remove later in favor of a real handling
    m_gotBody = true;
}


ViewMail::~ViewMail()
{
    m_recMail->Wrapper()->cleanMimeCache();
    hide();
}

void ViewMail::hide()
{
    QWidget::hide();

    if (_inLoop)
    {
        _inLoop = false;
        qApp->exit_loop();

    }

}

void ViewMail::exec()
{
    show();

    if (!_inLoop)
    {
        _inLoop = true;
        qApp->enter_loop();
    }

}

QString ViewMail::deHtml(const QString &aString)
{
    QString string_ = aString;
    string_.replace(QRegExp("&"), "&amp;");
    string_.replace(QRegExp("<"), "&lt;");
    string_.replace(QRegExp(">"), "&gt;");
    string_.replace(QRegExp("\\n"), "<br>");
    return string_;
}

void ViewMail::slotReply()
{
    if (!m_gotBody)
    {
        QMessageBox::information(this, tr("Error"), tr("<p>The mail body is not yet downloaded, so you cannot reply yet."), tr("Ok"));
        return;
    }

    QString rtext;
    rtext += QString("* %1 wrote on %2:\n")        // no i18n on purpose
             .arg(  m_mail[0] )
             .arg( m_mail[3] );

    QString text = m_mail[2];
    QStringList lines = QStringList::split(QRegExp("\\n"), text);
    QStringList::Iterator it;
    for (it = lines.begin(); it != lines.end(); it++)
    {
        rtext += "> " + *it + "\n";
    }
    rtext += "\n";

    QString prefix;
    if ( m_mail[1].find(QRegExp("^Re: .*$")) != -1) prefix = "";
    else prefix = "Re: ";                // no i18n on purpose

    Settings *settings = new Settings();
    ComposeMail composer( settings ,this, 0, true);
    if (m_recMail->Replyto().isEmpty()) {
        composer.setTo( m_recMail->getFrom());
    } else {
        composer.setTo( m_recMail->Replyto());
    }
    composer.setSubject( prefix + m_mail[1] );
    composer.setMessage( rtext );
    composer.setInReplyTo(m_recMail->Msgid());

    if ( QDialog::Accepted == QPEApplication::execDialog( &composer ) )
    {
        m_recMail->Wrapper()->answeredMail(m_recMail);
    }
}

void ViewMail::slotForward()
{
    if (!m_gotBody)
    {
        QMessageBox::information(this, tr("Error"), tr("<p>The mail body is not yet downloaded, so you cannot forward yet."), tr("Ok"));
        return;
    }

    QString ftext;
    ftext += QString("\n----- Forwarded message from %1 -----\n\n")
             .arg( m_mail[0] );
    if (!m_mail[3].isNull())
        ftext += QString("Date: %1\n")
                 .arg( m_mail[3] );
    if (!m_mail[0].isNull())
        ftext += QString("From: %1\n")
                 .arg( m_mail[0] );
    if (!m_mail[1].isNull())
        ftext += QString("Subject: %1\n")
                 .arg( m_mail[1] );

    ftext += QString("\n%1\n")
             .arg( m_mail[2]);

    ftext += QString("----- End forwarded message -----\n");

    Settings *settings = new Settings();
    ComposeMail composer( settings ,this, 0, true);
    composer.setSubject( "Fwd: " + m_mail[1] );
    composer.setMessage( ftext );
    if ( QDialog::Accepted == QPEApplication::execDialog( &composer ))
    {
    }
}

void ViewMail::slotDeleteMail( )
{
    if ( QMessageBox::warning(this, tr("Delete Mail"), QString( tr("<p>Do you really want to delete this mail? <br><br>" ) + m_mail[0] + " - " + m_mail[1] ) , QMessageBox::Yes, QMessageBox::No ) == QMessageBox::Yes )
    {
        m_recMail->Wrapper()->deleteMail( m_recMail );
        hide();
        deleted = true;
    }
}

MailImageDlg::MailImageDlg(const QString&fname,QWidget *parent, const char *name, bool modal, WFlags f)
    : Opie::Ui::ODialog(parent,name,modal,f)
{
    QVBoxLayout*dlglayout = new QVBoxLayout(this);
    dlglayout->setSpacing(2);
    dlglayout->setMargin(1);
    m_imageview = new Opie::MM::OImageScrollView(this);
    dlglayout->addWidget(m_imageview);
}

MailImageDlg::~MailImageDlg()
{
}

void MailImageDlg::setName(const QString&fname)
{
    m_imageview->setImage(fname);
}

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