[Seaside] Subclass MAReport (in Magritte) to get clickable (selectable) rows

[John Chludzinski]

I'm trying to subclass MAReport (in Magritte) to get clickable (selectable)
rows.  I modified #renderTableBodyOn: in MAReport as shown below but, while
the callback code is surely executed (the #editEvent: method is executed),
nothing appears in the browser.

renderTableBodyOn: html
    self visible isEmpty
        ifTrue: [...]        ifFalse: [
           self visible keysAndValuesDo: [ :index :row |
              html tableRow
                 class: (self rowStyleForNumber: index);
                 onClick: (html scriptaculous evaluator
                    callback: [ :script | component editEvent: row ];
                    return: false);
                 with: [
                    self visibleColumns do: [ :col |
                       col
                          renderCell: row
                          index: index
                          on: html ] ] ] ]

where:

editEvent: event
   | task |
    task := self call: (event descriptionEdit asComponentOn: event)
addValidatedForm.
    task ifNotNil: [
        self session database save: event.
        self refreshReport ]

---John
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