Look for default layout in parents if not specified

[geralt-encore]

#118
The logic ended up more complex than I expected initially. If you have any ideas how to do it easily - I'll gladly fix it.

[elihart]

Nice! It is a bit complex, but I don't think there is much getting around that. I just merged #120 which adds checks around the annotation.layout() calls. To prevent having to do that mess I refactored what you have to only check the layout in one place. I'm also a fan of recursion :P

private EpoxyModelClass findClassAnnotationWithLayout(TypeElement classElement)
      throws EpoxyProcessorException {
    if (!isEpoxyModel(classElement)) {
      return null;
    }

    EpoxyModelClass annotation = classElement.getAnnotation(EpoxyModelClass.class);
    if (annotation == null) {
      return null;
    }

    try {
      int layoutRes = annotation.layout();
      if (layoutRes != 0) {
        return annotation;
      }
    } catch (AnnotationTypeMismatchException e) {
      throwError("Invalid layout value in %s annotation. (class: %s). %s: %s",
          EpoxyModelClass.class,
          classElement.getSimpleName(),
          e.getClass().getSimpleName(),
          e.getMessage());
      return null;
    }

    TypeElement superclassElement = getSuperClassElement(typeUtils, classElement);
    EpoxyModelClass annotationOnSuperClass = findClassAnnotationWithLayout(superclassElement);

    // Return the last annotation value we have so the proper error can be thrown if needed
    return annotationOnSuperClass != null ? annotationOnSuperClass : annotation;
  }

[geralt-encore]

I'll look into your implementation! Just wanted to be sure that I understood the problem and did it correctly.

[elihart]

Thanks for all these tests!

[elihart]

yep, you understood perfectly, thanks for working on this!

[elihart]

Perfect! Thanks :)