[Qgis-developer] Executing Action on click

[Karl D]

Hi all 

I would like to implement a python plugin consisting on the following
control: 
when the control is activated, the user could click on a feature to
immediatly execute an action defined in the current layer. 

I thought to use something like this: 

        def run(self): 
                mapCanvas=self.iface.mapCanvas() 
                # Create the appropriate map tool and connect the gotPoint()
signal. 
                self.emitPoint = QgsMapToolEmitPoint(mapCanvas) 
                mapCanvas.setMapTool(self.emitPoint) 
                QObject.connect(self.emitPoint, SIGNAL("canvasClicked(const
QgsPoint &, Qt::MouseButton)"), self.clickButton) 
                
        def clickButton(self, pnt, but): 
                currentLayer = self.iface.mapCanvas().currentLayer() 
                currentLayer.select(QgsRectangle(pnt.x()-0.5, pnt.y()-0.5,
pnt.x()+0.5, pnt.y()+0.5), False) 
                for feature in currentLayer.selectedFeatures(): 
                        system(currentLayer.actions().expandAction("open",
[("path", feature.attributeMap()[0])], 0)) 


Is it the right way ? 

A problem is that the method doAction doesn't exist in python. Another one
is that I don't know how to call the method expandAction (types of the
arguments ?). 

Any idea is welcome. 

It could also be interesting to call the action with a double click. 

Thank's 
Karl 
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