noflo-polymer

This project provides a binding between Polymer web components and NoFlo, allowing Polymer components to be used as components in a NoFlo graph. The attributes of a Polymer element become the input ports of the NoFlo component, and the events emitted by the Polymer element become the output ports.

Status

In production with noflo-ui

Installation

Add this component to your dependencies:

$ npm install noflo-polymer --save

In addit you need a working setup of Polymer and NoFlo.

Usage

Since Polymer elements don't support introspection yet, you need to utilize the noflo-polymer custom element for informing NoFlo of the attributes and events of your custom elements.

For example:

<noflo-polymer name="the-graph" inports="graph width height" outports="changed"></noflo-polymer>

After this you'll have a polymer/the-graph component available with the following ports:

• Input
  • element (for providing an element instance either queried from DOM or as a result of document.createElement
  • graph (modifies the graph attribute)
  • width (modifies the width attribute)
  • height (modifies the height attribute)
• Output
  • element (the same element instance, passed through
  • changed (sends output when the element fires a changed event)

Changes

• 3.0.0 (November 04 2020)
  • Ported to Polymer 3.x
• 2.0.1 (November 10 2017)
  • Made noflo-polymer not import polymer.html since paths may be different in production use. Consumers must import it themselves
  • Added a true payload to the noflo:ready event emitted when a Polymer element is bound to a NoFlo component instance
• 2.0.0 (November 10 2017)
  • Ported components from CoffeeScript to ES6
  • Upgraded Polymer from 1.x to 2.x