rewrite formtatter* and customkeys* to share their code

sources/awesomewidgets/abstractextitemaggregator.cpp

@@ -20,6 +20,7 @@
 
 #include <KI18n/KLocalizedString>
 
+#include <QDir>
 #include <QFileInfo>
 #include <QInputDialog>
 #include <QPushButton>
@@ -33,6 +34,15 @@ AbstractExtItemAggregator::AbstractExtItemAggregator(QWidget *_parent,
 {
     qCDebug(LOG_LIB) << __PRETTY_FUNCTION__;
 
+    // create directory at $HOME
+    QString localDir = QString("%1/awesomewidgets/%2")
+                           .arg(QStandardPaths::writableLocation(
+                               QStandardPaths::GenericDataLocation))
+                           .arg(type());
+    QDir localDirectory;
+    if (localDirectory.mkpath(localDir))
+        qCInfo(LOG_LIB) << "Created directory" << localDir;
+
     ui->setupUi(this);
     copyButton
         = ui->buttonBox->addButton(i18n("Copy"), QDialogButtonBox::ActionRole);
@@ -182,6 +192,17 @@ QVariant AbstractExtItemAggregator::configArgs() const
 }
 
 
+QStringList AbstractExtItemAggregator::directories() const
+{
+    auto dirs
+        = QStandardPaths::locateAll(QStandardPaths::GenericDataLocation,
+                                    QString("awesomewidgets/%1").arg(type()),
+                                    QStandardPaths::LocateDirectory);
+
+    return dirs;
+}
+
+
 QString AbstractExtItemAggregator::type() const
 {
     return m_type;