Bug 185216 [CellEditors] Double click behavior on editable cells for tables happens regardless of the button used to execute the second click.
This happens with an editable CellEditor in a table. 1. The user single clicks (with button 1) the text cell editor to activate the cell. The text inside the cell automatically highlights. 2. The user clicks again (with button 2 and within the defined double click time) to activate the popup menu (perhaps they wish to paste a new value over the highlighted text). The text cell editor will then become un-activated and the double click behavior for the table will be run. I believe that this could be fixed by ensuring that for a double click action to happen, both mouse clicks are from button 1. I looked at the code in 3.2.2 and this is would involve modifying the code in both the TableEditorImpl.activateCellEditor() (lines 98-110 where it adds the mouse listener) and in TreeEditorImpl.activateCellEditor() (also lines 98-110). In 3.3, it appears that those classes were replaced. I did find, however, the same code in ColumnViewerEditor.activateCellEditor() (lines 181-193) and TableTreeViewer.TableTreeEditorImpl.activateCellEditor (lines 152-164).
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/ColumnViewerEditor.java
* set the layout data for the editor
	 *
	 * @param layoutData
	 *            the layout data used when editor is displayed
	 */
	protected abstract void setLayoutData(CellEditor.LayoutData layoutData);
	/**
	 * @param focusCell
	 *            updates the cell with the current input focus
	 * @param event
	 *            the event requesting to update the focusCell
	 */
	protected abstract void updateFocusCell(ViewerCell focusCell,
			ColumnViewerEditorActivationEvent event);
	/**
	 * @return the cell currently holding the focus if no cell has the focus or
	 *         the viewer implementation doesn't support <code>null</code> is
	 *         returned
	 *
	 */
	public ViewerCell getFocusCell() {
		return null;
	}
	/**
	 * @return the viewer working for
	 */
	protected ColumnViewer getViewer() {
		return viewer;
	}
}