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classInstancePane.js
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110 lines (97 loc) · 3.17 KB
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/* Class member Pane
**
** This outline pane lists the members of a class
*/
import * as UI from 'solid-ui-jss'
import * as $rdf from 'rdflib'
const ns = UI.ns
export const classInstancePane = {
icon: UI.icons.originalIconBase + 'tango/22-folder-open.png',
name: 'classInstance',
// Create a new folder in a Solid system,
audience: [ns.solid('PowerUser')],
label: function (subject, context) {
const kb = context.session.store
const n = kb.each(undefined, ns.rdf('type'), subject).length
if (n > 0) return 'List (' + n + ')' // Show how many in hover text
return null // Suppress pane otherwise
},
render: function (subject, context) {
const dom = context.dom
const outliner = context.getOutliner(dom)
const kb = context.session.store
const complain = function complain (message, color) {
const pre = dom.createElement('pre')
pre.setAttribute('style', 'background-color: ' + color || '#eed' + ';')
div.appendChild(pre)
pre.appendChild(dom.createTextNode(message))
}
const div = dom.createElement('div')
div.setAttribute('class', 'instancePane')
div.setAttribute(
'style',
' border-top: solid 1px #777; border-bottom: solid 1px #777; margin-top: 0.5em; margin-bottom: 0.5em '
)
// If this is a class, look for all both explicit and implicit
const sts = kb.statementsMatching(undefined, ns.rdf('type'), subject)
if (sts.length > 0) {
const already = {}
const more = []
sts.forEach(st => {
already[st.subject.toNT()] = st
})
for (const nt in kb.findMembersNT(subject)) {
if (!already[nt]) {
more.push($rdf.st(kb.fromNT(nt), ns.rdf('type'), subject)) // @@ no provenance
}
}
if (more.length) {
complain(
'There are ' +
sts.length +
' explicit and ' +
more.length +
' implicit members of ' +
UI.utils.label(subject)
)
}
if (subject.sameTerm(ns.rdf('Property'))) {
// / Do not find all properties used as properties .. unless look at kb index
} else if (subject.sameTerm(ns.rdfs('Class'))) {
const uses = kb.statementsMatching(undefined, ns.rdf('type'), undefined)
const usedTypes = {}
uses.forEach(function (st) {
usedTypes[st.object] = st
}) // Get unique
const used = []
for (const i in usedTypes) {
used.push($rdf.st($rdf.sym(i), ns.rdf('type'), ns.rdfs('Class')))
}
complain(
'Total of ' +
uses.length +
' type statements and ' +
used.length +
' unique types.'
)
}
if (sts.length > 10) {
const tr = dom.createElement('TR')
tr.appendChild(dom.createTextNode('' + sts.length))
// tr.AJAR_statement=sts[i]
div.appendChild(tr)
}
outliner.appendPropertyTRs(div, sts, true, function (_pred) {
return true
})
if (more.length) {
complain('Implicit:')
outliner.appendPropertyTRs(div, more, true, function (_pred) {
return true
})
}
}
return div
}
}
// ends