pica-editor

PICA+ record display and editor as Vue3 component based on CodeMirror.

Usage

Try online at https://gbv.github.io/pica-editor/!

Installation

Direct use as UMD module in the browser

First include Vue.js 3 and CodeMirror libraries and CodeMirror CSS:

<script src="https://unpkg.com/vue@3.0.0"></script>
<script src="https://unpkg.com/codemirror"></script>
<link rel="stylesheet" href="https://unpkg.com/codemirror/lib/codemirror.css">

Then include the pica-editor library and its CSS file.

<script src="https://unpkg.com/pica-editor"></script>
<link rel="stylesheet" href="https://unpkg.com/pica-editor/dist/pica-editor.css">

Finally create a Vue application that registers the PicaEditor component and make use of the <pica-editor> element:

<div id="app">
  ...
  <pica-editor>
    <pre>003@ $012345</pre>
  </pica-editor>
  ...
</div>
<script>
  Vue.createApp({
    components: { PicaEditor }
    // ...extend your Vue app
  }).mount("#app")
</script>

Use as ES Module in Vue web applications

We recommend to build your application with vite so Vue modules can be used as single file components (.vue files). In you HTML page include CSS files of CodeMirror and PicaEditor:

<link rel="stylesheet" href="https://unpkg.com/codemirror/lib/codemirror.css">
<link rel="stylesheet" href="https://unpkg.com/pica-editor/dist/pica-editor.css">

<div id="app"></div>
<script type="module" src="main.js"></script>

In a JavaScript module main.js:

import { createApp } from "vue"
import App from "./App.vue"

const app = createApp(App)
app.mount("#app")

In your Vue application:

<template>
  <div>
    <pica-editor>
      <pre>003@ $012345</pre>
    </pica-editor>
  </div>
</template>

<script>
import PicaEditor from "pica-editor"

export default {
  components: { PicaEditor }
  // ...extend your Vue app
}
</script>

The sub-component PicaLoader can also be used independently:

const { PicaLoader } = PicaEditor.components

Configuration

Editor instances can be configured with:

prop	type	description
unAPI	String	unAPI base URL to load records from
dbkey	String	database key to load records from via unAPI
ppn	String	record PPN to load
xpn	String	optional flag to control record expansion (default: offline, alternatively online)
filter	Function/Boolean	function to filter records when loaded or set
editable	Boolean	whether PICA record can be edited
avram	Object/URL	Avram Schema with definition of fields and subfields
header	Boolean	show/hide header (default true)
footer	Boolean	show/hide footer (default show only if field info is available)
databases	Array	array of databases to select from

The component emits three events:

• update:record when the parsed PICA record has been changed
• update:dbkey when the database has been changed

Databases, if given, are expected to be objects of this form:

{
  dbkey: "mandatory database key",
  title: { de: "German database name (optional)" }
  picabase: "base URL of catalog to link into (optional)"
}

To reflect selection change of database and ppn enable two-way binding:

<pica-editor :databases="[..]" v-model:dbkey="dbkey" v-model:ppn="ppn" ... />

The components provides methods:

• setRecord to set the PICA record in PICA/JSON structure
• setText to set the PICA record in PICA Plain syntax
• load to load a PICA record via unAPI (automatically triggered when properties ppn and/or dbkey are modified)

When filter is set to true, records are filtered to the current avram schema.

For configuration of PicaLoader component see its source code.

Development

During development run the sample application in example/ using vite:

npm run dev

To create distribution files in dist/:

npm run build

The documentation page docs/index.html loads local distribution files if opened at localhost and published distribution files otherwise.

All commits should be done to the dev branch or to feature branches. For releases run npm run release minor or npm run release patch, this automatically tags and merges into the release branch and pushes to GitHub where the release is published at https://www.npmjs.com/package/pica-editor and as GitHub release.

LICENSE

MIT License