src/Gui/EnvelopeView.cpp

   1 /* Copyright (C) 2006 - 2014 Jan Kundrát <jkt@flaska.net>
   2
   3    This file is part of the Trojita Qt IMAP e-mail client,
   4    http://trojita.flaska.net/
   5
   6    This program is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU General Public License as
   8    published by the Free Software Foundation; either version 2 of
   9    the License or (at your option) version 3 or any later version
  10    accepted by the membership of KDE e.V. (or its successor approved
  11    by the membership of KDE e.V.), which shall act as a proxy
  12    defined in Section 14 of version 3 of the license.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22 #include "EnvelopeView.h"
  23 #include <QHeaderView>
  24 #include <QFontMetrics>
  25 #if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
  26 #  include <QTextDocument>
  27 #else
  28 #  include <QUrlQuery>
  29 #endif
  30 #include "MessageView.h"
  31 #include "Gui/Util.h"
  32 #include "Imap/Model/ItemRoles.h"
  33 #include "Imap/Model/MailboxTree.h"
  34 #include "Imap/Model/Model.h"
  35
  36 namespace Gui {
  37
  38 EnvelopeView::EnvelopeView(QWidget *parent, MessageView *messageView): QLabel(parent)
  39 {
  40     // we create a dummy header, pass it through the style and the use it's color roles so we
  41     // know what headers in general look like in the system
  42     QHeaderView helpingHeader(Qt::Horizontal);
  43     helpingHeader.ensurePolished();
  44
  45     setBackgroundRole(helpingHeader.backgroundRole());
  46     setForegroundRole(helpingHeader.foregroundRole());
  47     setTextInteractionFlags(Qt::TextSelectableByMouse | Qt::LinksAccessibleByMouse);
  48     setIndent(5);
  49     setWordWrap(true);
  50     connect(this, SIGNAL(linkHovered(QString)), this, SLOT(onLinkHovered(QString)));
  51
  52     QFontMetrics fm(font());
  53     int iconSize = fm.boundingRect(QLatin1Char('M')).height();
  54     contactKnownUrl = Gui::Util::resizedImageAsDataUrl(QLatin1String(":/icons/contact-known.svg"), iconSize);
  55     contactUnknownUrl = Gui::Util::resizedImageAsDataUrl(QLatin1String(":/icons/contact-unknown.svgz"), iconSize);
  56
  57     connect(this, SIGNAL(linkActivated(QString)), messageView, SLOT(headerLinkActivated(QString)));
  58     connect(this, SIGNAL(addressDetailsRequested(QString,QStringList&)),
  59             messageView, SIGNAL(addressDetailsRequested(QString,QStringList&)));
  60 }
  61
  62 /** @short */
  63 void EnvelopeView::setMessage(const QModelIndex &index)
  64 {
  65     setText(headerText(index));
  66 }
  67
  68 /** @short Return a HTML representation of the address list */
  69 QString EnvelopeView::htmlizeAddresses(const QList<Imap::Message::MailAddress> &addresses)
  70 {
  71     Q_ASSERT(!addresses.isEmpty());
  72     QStringList buf;
  73     Q_FOREACH(const Imap::Message::MailAddress &addr, addresses) {
  74         QStringList matchingDisplayNames;
  75         emit addressDetailsRequested(addr.mailbox + QLatin1Char('@') + addr.host, matchingDisplayNames);
  76         QUrl url = addr.asUrl();
  77         QString icon = QString::fromUtf8("<span style='width: 4px;'>&nbsp;</span><a href='x-trojita-manage-contact:%1'>"
  78                                          "<img src='%2' align='center'/></a>").arg(
  79                     url.toString(QUrl::RemoveScheme),
  80                     matchingDisplayNames.isEmpty() ? contactUnknownUrl : contactKnownUrl);
  81         buf << addr.prettyName(Imap::Message::MailAddress::FORMAT_CLICKABLE) + icon;
  82     }
  83     return buf.join(QLatin1String(", "));
  84 }
  85
  86 QString EnvelopeView::headerText(const QModelIndex &index)
  87 {
  88     if (!index.isValid())
  89         return QString();
  90
  91     const Imap::Message::Envelope e = index.data(Imap::Mailbox::RoleMessageEnvelope).value<Imap::Message::Envelope>();
  92
  93     QString res;
  94     if (!e.from.isEmpty())
  95         res += tr("<b>From:</b>&nbsp;%1<br/>").arg(htmlizeAddresses(e.from));
  96     if (!e.sender.isEmpty() && e.sender != e.from)
  97         res += tr("<b>Sender:</b>&nbsp;%1<br/>").arg(htmlizeAddresses(e.sender));
  98     if (!e.replyTo.isEmpty() && e.replyTo != e.from)
  99         res += tr("<b>Reply-To:</b>&nbsp;%1<br/>").arg(htmlizeAddresses(e.replyTo));
 100     QVariantList headerListPost = index.data(Imap::Mailbox::RoleMessageHeaderListPost).toList();
 101     if (!headerListPost.isEmpty()) {
 102         QStringList buf;
 103         Q_FOREACH(const QVariant &item, headerListPost) {
 104             const QString scheme = item.toUrl().scheme().toLower();
 105             if (scheme == QLatin1String("http") || scheme == QLatin1String("https") || scheme == QLatin1String("mailto")) {
 106                 QString target = item.toUrl().toString();
 107                 QString caption = item.toUrl().toString(scheme == QLatin1String("mailto") ? QUrl::RemoveScheme : QUrl::None);
 108 #if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
 109                 target = Qt::escape(target);
 110                 caption = Qt::escape(caption);
 111 #else
 112                 target = target.toHtmlEscaped();
 113                 caption = caption.toHtmlEscaped();
 114 #endif
 115                 buf << tr("<a href=\"%1\">%2</a>").arg(target, caption);
 116             } else {
 117 #if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
 118                 buf << Qt::escape(item.toUrl().toString());
 119 #else
 120                 buf << item.toUrl().toString().toHtmlEscaped();
 121 #endif
 122             }
 123         }
 124         res += tr("<b>List-Post:</b>&nbsp;%1<br/>").arg(buf.join(tr(", ")));
 125     }
 126     if (!e.to.isEmpty())
 127         res += tr("<b>To:</b>&nbsp;%1<br/>").arg(htmlizeAddresses(e.to));
 128     if (!e.cc.isEmpty())
 129         res += tr("<b>Cc:</b>&nbsp;%1<br/>").arg(htmlizeAddresses(e.cc));
 130     if (!e.bcc.isEmpty())
 131         res += tr("<b>Bcc:</b>&nbsp;%1<br/>").arg(htmlizeAddresses(e.bcc));
 132 #if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
 133     res += tr("<b>Subject:</b>&nbsp;%1").arg(Qt::escape(e.subject));
 134 #else
 135     res += tr("<b>Subject:</b>&nbsp;%1").arg(e.subject.toHtmlEscaped());
 136 #endif
 137     if (e.date.isValid())
 138         res += tr("<br/><b>Date:</b>&nbsp;%1").arg(e.date.toLocalTime().toString(Qt::SystemLocaleLongDate));
 139     return res;
 140 }
 141
 142 void EnvelopeView::onLinkHovered(const QString &target)
 143 {
 144     QUrl url(target);
 145
 146     Imap::Message::MailAddress addr;
 147     if (Imap::Message::MailAddress::fromUrl(addr, url, QLatin1String("mailto")) ||
 148             Imap::Message::MailAddress::fromUrl(addr, url, QLatin1String("x-trojita-manage-contact"))) {
 149         QStringList matchingIdentities;
 150         emit addressDetailsRequested(addr.mailbox + QLatin1Char('@') + addr.host, matchingIdentities);
 151 #if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
 152         QString link = Qt::escape(addr.prettyName(Imap::Message::MailAddress::FORMAT_READABLE));
 153         QString identities = Qt::escape(matchingIdentities.join(QLatin1String("<br/>\n")));
 154 #else
 155         QString link = addr.prettyName(Imap::Message::MailAddress::FORMAT_READABLE).toHtmlEscaped();
 156         QString identities = matchingIdentities.join(QLatin1String("<br/>\n")).toHtmlEscaped();
 157 #endif
 158         if (matchingIdentities.isEmpty()) {
 159             setToolTip(link);
 160         } else {
 161             setToolTip(link + tr("<hr/><b>Address Book:</b><br/>") + identities);
 162         }
 163     } else {
 164         setToolTip(QString());
 165         return;
 166     }
 167 }
 168
 169 }