Global Filter / Transformer Definition in Polymer.dart

Question

Is there a way to define a global transformer that will be available in all user elements?

Answer 1

I don’t know a global way to define a transformer, but I use the following workaround: I have a class containing my global transformers that are included in my user elements using mixin. Put it in the library that you include in each item. My global transformer mix:

abstract class GlobalTransformersMixin extends Object implements Observable { @observable final Transformer asInteger = new _StringToInt(); //... } 

Using it in a custom element:

 @CustomTag('my-elment') class MyElement extends PolymerElement with GlobalTransformersMixin { //... }