public boolean handleEvent(Text text, TextEvent event) {
if (text.getElement(LiveParseFlag.class).liveParse) {
throw new RuntimeException("assert");
}
switchModes(text, null, text.getContent());
doNotupdate = true;
fChangeListener.valueChanges((IModelElement) null);
doNotupdate = false;
for (ITextEventListener listener :
((CompoundText) text).getTexts().get(0).getAllElements(ITextEventListener.class)) {
listener.handleEvent(text, event);
}
return true;
}
/**
* Switches the given view from live parsing to normal model view and vice versa. To switch from
* live parse to normal model, value must not be null and the view must be flagged live parse. To
* switch from model to live parse, value must be null and the view must not be flagged live
* parse.
*
* @param view The view to switch.
* @param value The new model or null.
* @param content The textual representation of the current model, used when switching to live
* parse.
*/
private void switchModes(Text view, IModelElement value, String content) {
IValueChangeListener<IModelElement> changeListener =
view.getElement(IValueChangeListener.class);
if (value == null && !view.getElement(LiveParseFlag.class).liveParse) {
((CompoundText) view)
.replaceText(
((CompoundText) view).getTexts().get(0),
createLiveParseView(changeListener, content));
view.getElement(LiveParseFlag.class).liveParse = true;
} else if (value != null && view.getElement(LiveParseFlag.class).liveParse) {
((CompoundText) view)
.replaceText(
((CompoundText) view).getTexts().get(0), super.createView(value, changeListener));
view.getElement(LiveParseFlag.class).liveParse = false;
} else {
if (!view.getElement(LiveParseFlag.class).liveParse) {
super.updateView(((CompoundText) view).getTexts().get(0), value);
} else {
((CompoundText) view)
.replaceText(
((CompoundText) view).getTexts().get(0),
createLiveParseView(changeListener, content));
view.getElement(LiveParseFlag.class).liveParse = true;
}
}
}
public boolean verifyEvent(Text text, TextEvent event) {
return ExpressionTemplate.this.verifyEvent(text.getContent(), event);
}