I can't get my QML plasmoid to work!

[Farhad Hedayati-Fard]

Hi!
I've written a QML plasmoid to test the translator dataengine 
(plasma/farhad_hf/translator branch of kdeplasma-addons), but I can't get it 
to work, code:

import Qt 4.7
import org.kde.plasma.graphicswidgets 0.1 as PlasmaWidgets
import org.kde.plasma.core 0.1 as PlasmaCore
import org.kde.plasma.graphicslayouts 4.7 as GraphicsLayouts

Item {
  id: mainwindow
//   property string provider
//   property string from
//   property string to
  
  Component.onCompleted: {
    plasmoid.addEventListener('ConfigChanged', configChanged);
  }
  
//   function configChanged()
//   {
//     provider = plasmoid.readConfig("provider");
//     from = plasmoid.readConfig("fromLanguage");
//     to = plasmoid.readConfig("toLanguage");
//   }
  
  function printData() {
    for ( i in source.data.keys ) {
      print ("K: "+i);
    }
  }

  PlasmaCore.DataSource {
    id: source
    engine: "translator"
    onDataChanged: {
      plasmoid.busy = false
      printData()
    }
    
  }
  
  PlasmaCore.DataModel {
    id: dataModel
    dataSource: source
  }
  
  PlasmaCore.Theme {
    id: theme
  }
  
  Column {
    width: mainwindow.width
    height: mainwindow.height
    Row {
      id: searchWidget
      width: parent.width
      PlasmaWidgets.LineEdit {
        id: searchBox
        clearButtonShown: true
        width: parent.width
        onTextEdited: timer.running = true
      }
    }
  
    Flickable {
      clip: true
      Text {
        id: translation
        wrapMode: Text.Wrap
        width: parent.parent.width
        text: source.data["googletranslate" + ":" + "en" + ":" + "fa" + ":" + 
searchBox.text]["text"]
      }
    }
  }
  
  Timer {
    id: timer
    running: false
    repeat: false
    interval: 500
    onTriggered: {
      plasmoid.busy = true
      source.connectedSources = ["googletranslate" + ":" + "en" + ":" + "fa" + 
":" + searchBox.text]
    }
  }
}

I get this error in the console output:
TypeError: Result of expression 'source.data["googletranslate" + ":" + "en" + 
":" + "fa" + ":" + searchBox.text]' [undefined] is not an object.

If I remove the `["text"]' from line 89, I get this error:
Unable to assign [undefined] to QString text

and the plasmoid remains in the busy mode even after the dataengine returns 
the data (according to the console output!)...

you can download the googletranslate provider plugin from 
http://www.digidesk.ir/ggt.tgz
and the plasmoid:
http://www.digidesk.ir/translator.plasmoid

Thanks in advance :)
Farhad Hedayati Fard