Description Marcus O'Brien 2007-09-14 07:04:36 EDT

Ok,

All code is in the org.eclipse.ui.views.

We have some properties in a PropertySheetViewer. It is possible to edit the values. Using the mouse click to move out of a cell after editing works fine.

There is a problem however with the following series of actions...

1. Click on a cell
2. Edit the cell's values
3. Press enter

At this stage the following has occured..

CellEditor::run
ICellEditorListener::applyEditorValue
PropertySheetEntry::applyEditorValue - This applies the new value

Now we click on a different cell - MouseDown event

PropertySheetViewer::hookControl - see comment in code "// Part2: handle single click activation of cell editor"
PropertySheetViewer::handleSelect

In PropertySheetViewer::handleSelect, the first couple of lines are

if (cellEditor != null) {
            applyEditorValue();
            deactivateCellEditor();
        }

And guess what ? The cellEditor has not been disposed of. It is disposed when using the mouse clicking mechanism (ie after editing cell immediately click on another cell, as opposed to enter key). So the applyEditorValue is done twice.

Proposed fix is....

In PropertySheetViewer::hookControl

Add the following...

        //when we move off the cell via the enter key the changes will have been applied
        //we now need to clean up the editor, so we dont apply the changes twice
        tree.addKeyListener(new KeyAdapter() {
            public void keyReleased(KeyEvent e) {
                if (e.character == SWT.CR) {
			deactivateCellEditor();
		}
            }
        });


I will attempt to commit (submit for review) this code, but it's my first attempt at changing the eclipse source....

Marcus.