def METHOD_NAME(self):
    if isinstance(self.sender(), QAbstractItemView):
        selectionModel = self.sender().selectionModel()
    else:
        selectionModel = self.sender()
    indexes = self.getIndexes(selectionModel)
    if self._lastIndexes == indexes:
        return
    # No item selected
    if len(indexes) == 0:
        self.setEnabled(False)
        self.revisions.setEnabled(False)
        self.txtSummarySentence.setCurrentModelIndex(QModelIndex())
        self.txtSummaryFull.setCurrentModelIndex(QModelIndex())
        self.txtNotes.setCurrentModelIndex(QModelIndex())
    # One item selected
    elif len(indexes) == 1:
        self.setEnabled(True)
        idx = indexes[0]
        self.txtSummarySentence.setEnabled(True)
        self.txtSummaryFull.setEnabled(True)
        self.txtNotes.setEnabled(True)
        self.txtSummarySentence.setCurrentModelIndex(idx)
        self.txtSummaryFull.setCurrentModelIndex(idx)
        self.txtNotes.setCurrentModelIndex(idx)
        self.revisions.setEnabled(True)
        self.revisions.setCurrentModelIndex(idx)
    # Multiple items selected
    else:
        self.setEnabled(True)
        # Behavior 1:
        # We disable the text areas when multiple indexes are selected
        self.txtSummarySentence.setEnabled(False)
        self.txtSummaryFull.setEnabled(False)
        self.txtNotes.setEnabled(False)
        self.txtSummarySentence.setCurrentModelIndex(QModelIndex())
        self.txtSummaryFull.setCurrentModelIndex(QModelIndex())
        self.txtNotes.setCurrentModelIndex(QModelIndex())
        # Behavior 2:
        # Allow edition of multiple indexes.
        # Bug: Multiple selections of items sometimes gets Notes/references
        #      field to be erased. See #10 on github.
        #self.txtSummarySentence.setCurrentModelIndexes(indexes)
        #self.txtSummaryFull.setCurrentModelIndexes(indexes)
        #self.txtNotes.setCurrentModelIndexes(indexes)
        self.revisions.setEnabled(False)
    self.properties.METHOD_NAME(selectionModel)
    self._lastIndexes = indexes