78283 - [RFE] onselectionchanged events needed for tree widget

Status: CLOSED INVALID

(Core :: XUL, enhancement)

Description

[Peter Wilson]

[RFE} Add onselectionchanged event handler for tree widgets to notify when tree 
items are added/removed from the selection. This might also apply to other 
widgets which support multiple selection.

Rationale:
I am trying to maintain multiple selection in a tree of widgets and a form view 
of the same widgets. I also need to synchronize a property inspector. The 
current tree.onselected event only gives the total current selection. This is 
murder when you need to know when an item is de/selected.

Comment 1

[timeless]

are you using tree or outliner?

Comment 2

[Peter Wilson]

I am using the tree control. 

I suppose that once mutation events are in I could listen for changes to the 
"select" attribute. In the meanwhile I clone the selection list and then look 
for additions and removals.

Comment 3

[David Hyatt]

onselect.

Comment 4

[Peter Wilson]

Not onselect.

Comment 5

[Peter Wilson]

I have reconsidered this request. Onselect works fine for most users. It took  
about 20 lines of code to maintain my own selection list and to compare it with 
the selectedItems[] list in the onselect event. The differences generate my own 
selection change events. When mutation events arrive a more direct approch will 
be available. Please consider this item closed.

Comment 6

[David Hyatt]

Mutation events are online.