Here's a snippet of one of the walkback logs:
ExceptionalEvent>>#signalWith:
receiver = Exception: (ExError) An error has occurred.
arg1 = 'Primitive failed in: Object>>#at: due to Index out of range in argument 1'
Array(Object)>>#error:
receiver = (nil nil nil)
arg1 = 'Primitive failed in: Object>>#at: due to Index out of range in argument 1'
Array(Object)>>#primitiveFailed:withArgument:backUp:
receiver = (nil nil nil)
arg1 = 2
arg2 = 1
arg3 = 1
Array(Object)>>#primitiveFailed
receiver = (nil nil nil)
Array(Object)>>#at:
receiver = (nil nil nil)
arg1 = 5
EwSingleSelectionMapper(EwListInputMapper)>>#doubleClickOccurred:
receiver = an EwSingleSelectionMapper
arg1 = CwButtonEvent[455,89] state=0 time=33782484 button=5
temp1 = nil
temp2 = nil
temp3 = nil
EwSingleSelectionMapper(EwListInputMapper)>>#processButtonPress:
receiver = an EwSingleSelectionMapper
arg1 = CwButtonEvent[455,89] state=0 time=33782484 button=5
EwSingleSelectionMapper(EwListInputMapper)>>#processInputEvent:
receiver = an EwSingleSelectionMapper
arg1 = CwButtonEvent[455,89] state=0 time=33782484 button=5
EwTableList(EwList)>>#inputEvent:clientData:callData:
receiver = an EwTableList
arg1 = CwDrawingArea('Container Details1_DrawingArea')
arg2 = nil
arg3 = CwButtonEvent[455,89] state=0 time=33782484 button=5
EwTableList(EwContainerList)>>#inputEvent:clientData:callData:
receiver = an EwTableList
arg1 = CwDrawingArea('Container Details1_DrawingArea')
arg2 = nil
arg3 = CwButtonEvent[455,89] state=0 time=33782484 button=5
EwTableList>>#inputEvent:clientData:callData:
receiver = an EwTableList
arg1 = CwDrawingArea('Container Details1_DrawingArea')
arg2 = nil
arg3 = CwButtonEvent[455,89] state=0 time=33782484 button=5
It looks like the Array called previousButtonDown is an empty Array when it shouldn't be since the user presumbly has clicked a button before getting into that method.
For now we've created a fix for this in the EwListInputMapper doubleClickOccurred: method.
Original
doubleClickOccurred: aCwButtonEvent
"Answer true if the button click described by aCwButtonEvent is close enough in time
and distance to the previous button click to be considered a double click event."
| previousClick answer distance |
previousClick := self previousButtonDown at: aCwButtonEvent button.
distance := self doubleClickDistanceThreshhold.
answer := previousClick == nil
ifTrue: [false]
ifFalse: [
(previousClick xRoot - aCwButtonEvent xRoot) abs < distance and: [
(previousClick yRoot - aCwButtonEvent yRoot) abs < distance and: [
aCwButtonEvent time - previousClick time <= self doubleClickMillisecondThreshhold and: [
(self widget itemAtX: aCwButtonEvent x y: aCwButtonEvent y) ~~ nil]]]].
self previousButtonDown
at: aCwButtonEvent button
put: (answer ifTrue: [nil] ifFalse: [aCwButtonEvent]).
^answer
Patch
doubleClickOccurred: aCwButtonEvent
"Answer true if the button click described by aCwButtonEvent is close enough in time
and distance to the previous button click to be considered a double click event."
| previousClick answer distance |
previousClick := self previousButtonDown at: aCwButtonEvent button ifAbsent: [].
distance := self doubleClickDistanceThreshhold.
answer := previousClick == nil
ifTrue: [false]
ifFalse: [
(previousClick xRoot - aCwButtonEvent xRoot) abs < distance and: [
(previousClick yRoot - aCwButtonEvent yRoot) abs < distance and: [
aCwButtonEvent time - previousClick time <= self doubleClickMillisecondThreshhold and: [
(self widget itemAtX: aCwButtonEvent x y: aCwButtonEvent y) ~~ nil]]]].
self previousButtonDown
at: aCwButtonEvent button
put: (answer ifTrue: [nil] ifFalse: [aCwButtonEvent]).
^answer
It would be nice if this fix could make it into the next release.
