Bug 39074 [CellEditors] [DBCS] canna input mode fires bogus event from Text Control
Steps: 1)Create simple file named foo.usr. 2)Open the propertysheet example editor on this file. 3)Select a department (or group or whatever) and go to edit the name of that object in the propertysheet 4) Shift+SPACE to enter canno input mode. 5) Type "nihongo" and press ENTER When you press ENTER, the propertysheet receives either a bogus widgetDefaultSelected event, or a bogus focusLost event. In either case, the entered canna text is lost. This affects anyone who displays a popup celleditor and is interested in the events mentioned above. This bug affects multiple GEF clients in WSAD
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/TextCellEditor.java
* The <code>TextCellEditor</code>  implementation of this 
 * <code>CellEditor</code> method returns <code>true</code> if 
 * the current selection is not empty.
 */
public boolean isCutEnabled() {
	if (text == null || text.isDisposed())
		return false;
	return text.getSelectionCount() > 0;
}
/**
 * The <code>TextCellEditor</code>  implementation of this 
 * <code>CellEditor</code> method returns <code>true</code>
 * if there is a selection or if the caret is not positioned 
 * at the end of the text.
 */
public boolean isDeleteEnabled() {
	if (text == null || text.isDisposed())
		return false;
	return text.getSelectionCount() > 0 || text.getCaretPosition() < text.getCharCount();
}
/**
 * The <code>TextCellEditor</code>  implementation of this 
 * <code>CellEditor</code> method always returns <code>true</code>.
 */
public boolean isPasteEnabled() {
	if (text == null || text.isDisposed())
		return false;
	return true;
}
/**