Render ticket barcodes if present

Requires a bit of refactoring in how we expose data to Grantlee. As that
can't easily do array or map lookups we need to interleave reservation and
state data already on the outside.

plugins/messageviewer/bodypartformatter/semantic/CMakeLists.txt

@@ -47,5 +47,6 @@ target_link_libraries(messageviewer_bodypartformatter_semantic
   KF5::I18n
   Grantlee5::Templates
   Qt5::DBus
+  KF5::Prison
 )
 install(TARGETS messageviewer_bodypartformatter_semantic DESTINATION ${KDE_INSTALL_PLUGINDIR}/messageviewer/bodypartformatter)

plugins/messageviewer/bodypartformatter/semantic/datatypes.h

@@ -156,6 +156,7 @@ class Ticket
 {
     SEMANTIC_GADGET
     SEMANTIC_PROPERTY(QVariant, ticketedSeat)
+    SEMANTIC_PROPERTY(QString, ticketToken)
 };
 
 class Reservation

plugins/messageviewer/bodypartformatter/semantic/semanticmemento.cpp

@@ -48,6 +48,20 @@ QVector<QVariant> SemanticMemento::data() const
 void SemanticMemento::setData(const QVector<QVariant> &data)
 {
     m_data = data;
+    m_expanded.resize(data.size());
+}
+
+QVector<bool> SemanticMemento::expanded() const
+{
+    return m_expanded;
+}
+
+void SemanticMemento::toggleExpanded(int index)
+{
+    if (index >= m_expanded.size()) {
+        return;
+    }
+    m_expanded[index] = !m_expanded.at(index);
 }
 
 bool SemanticMemento::hasStructuredData() const

plugins/messageviewer/bodypartformatter/semantic/semanticmemento.h

@@ -44,11 +44,15 @@ public:
     QVector<QVariant> data() const;
     void setData(const QVector<QVariant> &data);
 
+    QVector<bool> expanded() const;
+    void toggleExpanded(int index);
+
     bool hasStructuredData() const;
     void setStructuredDataFound(bool f);
 
 private:
     QVector<QVariant> m_data;
+    QVector<bool> m_expanded;
     QSet<KMime::ContentIndex> m_parsedParts;
     bool m_foundStructuredData = false;
 };

plugins/messageviewer/bodypartformatter/semantic/semanticrenderer.cpp

@@ -19,15 +19,19 @@
 
 #include "semanticrenderer.h"
 #include "datatypes.h"
+#include "jsonlddocument.h"
 #include "semanticmemento.h"
 #include "semantic_debug.h"
 
-#include <MessageViewer/MessagePartRendererManager>
+#include <MessageViewer/IconNameCache>
 #include <MessageViewer/HtmlWriter>
+#include <MessageViewer/MessagePartRendererManager>
 
 #include <grantlee/metatype.h>
 #include <grantlee/template.h>
 
+#include <prison/Prison>
+
 #include <QGuiApplication>
 #include <QMetaProperty>
 #include <QPalette>
@@ -79,7 +83,6 @@ bool SemanticRenderer::render(const MimeTreeParser::MessagePartPtr &msgPart, Mes
         return false;
     }
 
-    qCDebug(SEMANTIC_LOG) << "========================================= Semantic Rendering";
     const auto node = mpList->subParts().at(0)->content();
     const auto nodeHelper = msgPart->nodeHelper();
     if (!nodeHelper || !node) {
@@ -91,14 +94,46 @@ bool SemanticRenderer::render(const MimeTreeParser::MessagePartPtr &msgPart, Mes
         return false;
     }
 
+    const auto dir = nodeHelper->createTempDir(QStringLiteral("semantic"));
     auto c = MessageViewer::MessagePartRendererManager::self()->createContext();
-    c.insert(QStringLiteral("data"), QVariant::fromValue(memento->data()));
 
     const auto pal = qGuiApp->palette();
     QVariantMap style;
     style.insert(QStringLiteral("frameColor"), pal.link().color().name());
+    style.insert(QStringLiteral("expandIcon"), MessageViewer::IconNameCache::instance()->iconPathFromLocal(QStringLiteral("quoteexpand.png")));
+    style.insert(QStringLiteral("collapseIcon"), MessageViewer::IconNameCache::instance()->iconPathFromLocal(QStringLiteral("quotecollapse.png")));
     c.insert(QStringLiteral("style"), style);
 
+    // Grantlee can't do indexed map/array lookups, so we need to interleave this here already
+    QVariantList elems;
+    elems.reserve(memento->data().size());
+    for (int i = 0; i < memento->data().size(); ++i) {
+        const auto res = memento->data().at(i);
+        QVariantMap data;
+        data.insert(QStringLiteral("reservation"), res);
+
+        QVariantMap state;
+        state.insert(QStringLiteral("expanded"), memento->expanded().at(i));
+        data.insert(QStringLiteral("state"), state);
+
+        // generate ticket barcodes
+        const auto ticket = JsonLdDocument::readProperty(res, "reservedTicket");
+        const auto ticketToken = JsonLdDocument::readProperty(ticket, "ticketToken").toString();
+        if (ticketToken.startsWith(QLatin1String("azteccode:"), Qt::CaseInsensitive)) {
+            std::unique_ptr<Prison::AbstractBarcode> barcode(Prison::createBarcode(Prison::Aztec));
+            barcode->setData(ticketToken.mid(10));
+            barcode->toImage(barcode->minimumSize()); // minimumSize is only available after we rendered once...
+            const auto img = barcode->toImage(barcode->minimumSize());
+            const auto fileName = dir + QStringLiteral("/ticketToken") + QString::number(i) + QStringLiteral(".png");
+            img.save(fileName);
+            data.insert(QStringLiteral("ticketToken"), fileName);
+            nodeHelper->addTempFile(fileName);
+        }
+
+        elems.push_back(data);
+    }
+    c.insert(QStringLiteral("data"), elems);
+
     auto t = MessageViewer::MessagePartRendererManager::self()->loadByName(QStringLiteral(":/org.kde.messageviewer/semantic/semantic.html"));
     Grantlee::OutputStream s(htmlWriter->stream());
     t->render(&s, &c);

plugins/messageviewer/bodypartformatter/semantic/semanticurlhandler.cpp

@@ -46,8 +46,20 @@
 bool SemanticUrlHandler::handleClick(MessageViewer::Viewer *viewerInstance, MimeTreeParser::Interface::BodyPart *part, const QString &path) const
 {
     Q_UNUSED(viewerInstance);
-    Q_UNUSED(part);
-    return path == QLatin1String("semanticAction");
+    if (path == QLatin1String("semanticAction")) {
+        return true;
+    }
+
+    if (path.startsWith(QLatin1String("semanticExpand?"))) {
+        auto idx = path.midRef(15).toInt();
+        auto m = memento(part);
+        m->toggleExpanded(idx);
+        const auto nodeHelper = part->nodeHelper();
+        emit nodeHelper->update(MimeTreeParser::Delayed);
+        return true;
+    }
+
+    return false;
 }
 
 static void addGoToMapAction(QMenu *menu, const QVariant &place)

plugins/messageviewer/bodypartformatter/semantic/templates/semantic.html

@@ -2,7 +2,8 @@
 <div style="position: absolute; top: 4px; right: 4px;">
     <a href="x-kmail:/bodypart/0//semanticAction">{% icon "view-calendar" small _("Add reservation to calendar.") %}</a>
 </div>
-{% for item in data %}
+{% for elem in data %}
+    {% with elem.reservation as item %}
     {% if item.className == "FlightReservation" %}
         {% include ":/org.kde.messageviewer/semantic/flightreservation.html" %}
     {% elif item.className == "LodgingReservation" %}
@@ -14,5 +15,6 @@
     {% if not forloop.last %}
         <hr/>
     {% endif %}
+    {% endwith %}
 {% endfor %}
 </div>

plugins/messageviewer/bodypartformatter/semantic/templates/trainreservation.html

@@ -23,6 +23,15 @@
     </tr>
     <tr><td colspan="3">
         <div style="float:left">
+        {% if elem.ticketToken %}
+            <a href="x-kmail:/bodypart/0//semanticExpand?{{ forloop.counter0 }}">
+            {% if elem.state.expanded %}
+                <img src="{{ style.collapseIcon }}" style="margin-right: 4px;"/>
+            {% else %}
+                <img src="{{ style.expandIcon }}" style="margin-right: 4px;"/>
+            {% endif %}
+            </a>
+        {% endif %}
         {% if item.reservedTicket.ticketedSeat.seatSection %}
             {% i18n "Coach: %1" item.reservedTicket.ticketedSeat.seatSection %}
         {% endif %}
@@ -50,3 +59,11 @@
 
     </td></tr>
 </table>
+
+{% if elem.state.expanded %}
+    <div style="text-align:center;">
+        <div style="background-color: #ffffff; display: inline-block; padding: 4px;">
+        <img src="{{ elem.ticketToken }}"/>
+        </div>
+    </div>
+{% endif %}