Bug 311312

Description islocated 2010-05-02 11:03:37 EDT

Build Identifier: 20100218-1602

I am running into a problem where the selection event is not triggered when I do a sequence of selections in a multi selection gallery.

If I left click on one item, it selects it and triggers the listener for the selection.  If I shift + left click on another item, it selects both items and also triggers the listener.  However, if I left click on the first item again, the selection changes to selecting only that first item, but it does not trigger the selection listeners.

I looked at the code and found this section onMouseHandleLeft.
On mouse up and item is not null, it does a notify only if the lastSingleClick is not the current item.

setSelected(item, true, lastSingleClick != item);

onMouseHandleLeftShift does not register lastSingleClick so after we shift + left click a few items, left clicking on the first item will change our selection, but lastSingleClick has never changed so the notification to the listeners aren't sent.

Reproducible: Always

Steps to Reproduce:
1. Create a gallery with SWT.MULTI style with a few items.
2. Left click on item one
3. Shift + Left click on item two
4. Left click on item one. (If you shift + left click, you will get notification)
5. Selection was changed but no selection event was triggered.