public TextViewerSupport(TextViewer textViewer,
IHandlerService handlerService) {
this.textViewer = textViewer;
this.handlerService = handlerService;
StyledText textWidget = textViewer.getTextWidget();
textWidget.addFocusListener(this);
textWidget.addDisposeListener(this);
if (textViewer.getTextWidget().isFocusControl()) {
activateContext();
}