ov-procedure

src/ov-procedure.js

LIFTED FROM demo/procedure.html

Attributes

Properties

Events

Using it

import 'overscan'
import 'overscan/overscan.css'

<ov-procedure
  steps="SEAL HATCH,PRESSURISE,CREW CLEAR,ARM PYROS"
  unsensed="CREW CLEAR"
  armed="ARMED"
  sensed="SEAL HATCH=on, PRESSURISE=off, ARM PYROS=on"
  claimed="SEAL HATCH,PRESSURISE"
></ov-procedure>

import { OvProcedure } from 'overscan/react'

<OvProcedure
  steps="SEAL HATCH,PRESSURISE,CREW CLEAR,ARM PYROS"
  unsensed="CREW CLEAR"
  armed="ARMED"
  claimed="SEAL HATCH,PRESSURISE"
  sensed={data}
  onClaim={handler}
  onComplete={handler}
  onRefuse={handler}
/>

import { OvProcedure } from 'overscan/vue'

<OvProcedure
  steps="SEAL HATCH,PRESSURISE,CREW CLEAR,ARM PYROS"
  unsensed="CREW CLEAR"
  armed="ARMED"
  claimed="SEAL HATCH,PRESSURISE"
  :sensed="data"
  @claim="handler"
  @complete="handler"
  @refuse="handler"
/>

import OvProcedure from 'overscan/svelte/OvProcedure.svelte'

<OvProcedure
  steps="SEAL HATCH,PRESSURISE,CREW CLEAR,ARM PYROS"
  unsensed="CREW CLEAR"
  armed="ARMED"
  claimed="SEAL HATCH,PRESSURISE"
  sensed={data}
  onclaim={handler}
  oncomplete={handler}
  onrefuse={handler}
/>

The CSS is a separate import in every framework. A single element can be imported on its own instead of the whole kit: import 'overscan/src/ov-chart.js'

A reading is set as a PROPERTY, never an attribute. An attribute is a string, so an array cannot survive one and a null arrives as the word "null", which the protocol would read as a value rather than a dropout.

Every ov: event is bound with addEventListener. The colon has no declarative spelling in Svelte 5, where the on: directive is gone and "onov:commit" is not an identifier, nor in JSX. Vue can bind it.

The wrapper applies attributes ITSELF and hands the framework nothing but a ref. All three frameworks set a prop as a property when the name exists on the element, and this kit has 77 getter-only properties across 43 elements. Assigning one throws, and in React it does not degrade: the whole tree fails to render. 13 elements have a getter-only name that is also a real attribute (at, bearing, digits, duration, floor, fov, fresh, hold, lat, lon, period, pitch, range, ring, rings, span, step, sweep, sweeps, traces, value), which are the ones a reader would naturally pass in markup.