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
*/
public void performCopy() {
	text.copy();
}
/**
 * The <code>TextCellEditor</code> implementation of this
 * <code>CellEditor</code> method cuts the
 * current selection to the clipboard. 
 */
public void performCut() {
	text.cut();
	checkSelection(); 
	checkDeleteable();
	checkSelectable();
}
/**
 * The <code>TextCellEditor</code> implementation of this
 * <code>CellEditor</code> method deletes the
 * current selection or, if there is no selection,
 * the character next character from the current position. 
 */
public void performDelete() {
	if (text.getSelectionCount() > 0)
		
		text.insert(""); 
	else {
		
		int pos = text.getCaretPosition();
		if (pos < text.getCharCount()) {
			text.setSelection(pos, pos + 1);