Mime ddata support in runners

svn path=/trunk/KDE/kdelibs/; revision=1093881

abstractrunner.cpp

@@ -22,6 +22,7 @@
 #include <QAction>
 #include <QHash>
 #include <QMenu>
+#include <QMimeData>
 #include <QMutex>
 #include <QMutexLocker>
 #include <QTimer>
@@ -184,6 +185,11 @@ void AbstractRunner::clearActions()
     d->actions.clear();
 }
 
+QMimeData * AbstractRunner::setupMimeDataForMatch(const QueryMatch *match)
+{
+    return 0;
+}
+
 bool AbstractRunner::hasRunOptions()
 {
     return d->hasRunOptions;

abstractrunner.h

@@ -34,6 +34,7 @@
 #include <plasma/version.h>
 
 class QAction;
+class QMimeData;
 
 class KCompletion;
 
@@ -443,6 +444,12 @@ class PLASMA_EXPORT AbstractRunner : public QObject
     protected Q_SLOTS:
         void init();
 
+        /**
+         * Reimplement this slot if you want your runner
+         * to support serialization and drag and drop
+         */
+        QMimeData * setupMimeDataForMatch(const Plasma::QueryMatch *match);
+
     private:
         friend class RunnerScript;
 

runnermanager.cpp

@@ -542,6 +542,28 @@ QList<QAction*> RunnerManager::actionsForMatch(const QueryMatch &match)
     return QList<QAction*>();
 }
 
+QMimeData * RunnerManager::mimeDataForMatch(const QString &id) const
+{
+    return mimeDataForMatch(d->context.match(id));
+}
+
+
+QMimeData * RunnerManager::mimeDataForMatch(const QueryMatch &match) const
+{
+    AbstractRunner *runner = match.runner();
+    QMimeData * mimeData;
+    if (runner && QMetaObject::invokeMethod(
+            runner,
+            "setupMimeDataForMatch", Qt::DirectConnection,
+            Q_RETURN_ARG(QMimeData*, mimeData),
+            Q_ARG(const Plasma::QueryMatch *, & match)
+    )) {
+        return mimeData;
+    }
+
+    return 0;
+}
+
 void RunnerManager::setupMatchSession()
 {
     d->teardownRequested = false;

runnermanager.h

@@ -168,6 +168,18 @@ class PLASMA_EXPORT RunnerManager : public QObject
          */
         QStringList allowedRunners() const;
 
+        /**
+         * @return mime data of the specified match
+         * @since 4.5
+         */
+        QMimeData * mimeDataForMatch(const QueryMatch &match) const;
+
+        /**
+         * @return mime data of the specified match
+         * @since 4.5
+         */
+        QMimeData * mimeDataForMatch(const QString &id) const;
+
     public Q_SLOTS:
         /**
          * Call this method when the runners should be prepared for a query session.