The nanosome-notify project is a collection of cool mechanisms to notify others of changes and to listen to changes in a system.

Fields

For some reason every Model out there seems to be broadcasting about changes of a property of a object. Fields are a little bit different. They are holders for just one value and they tell others about changes of that one property.

Now that might seem like a downgrade but actually is quite useful if you want to implement without depending to actually know what event or property one needs to listen to. This allows to implement a lot of neat modules that do not depend to certain interfaces.

More in the Fields package docs.

Observable

A classic - with Observable we have a fast, reliable implementation of the classic Observer pattern. It can be used instead of [Bindable] if you wish - it is certainly faster. It works well with the binding implementation(below) which means it suits particularily for making existing applications faster.

More in the Observable package docs.

Binding

We have a small function watch that allows to listen to all properties (and sub-sub properties) of any object. If that objects happen to have [Bindable] or has observable properties it will take advantage of this situation and do all that observing even efficient.

Watching

We implemented watch to make the job of binding two properties together easier. Compared to flex its actually very, very easy: just use bind and you can bind two properties together.

All and more in the Bind package docs.

Expressions

Expressions are a subset of Fields that are useful for mathematical expressions that rely on parameters like (a+a/4). It also offers working with visual units like "cm" or "inch" or "%".

Get a full overview of how to use it in the Expression package docs.