solid-panes/lib/tableViewPane.js

Solid-compatible Panes: applets and views for the mashlib and databrowser

"use strict";

// Format an array of RDF statements as an HTML table.
//
// This can operate in one of three modes: when the class of object is given
// or when the source document from which data is taken is given,
// or if a prepared query object is given.
// (In principle it could operate with neither class nor document
// given but typically
// there would be too much data.)
// When the tableClass is not given, it looks for common  classes in the data,
// and gives the user the option.
//
// 2008 Written, Ilaria Liccardi
// 2014 core functionality now in common/table.js   -timbl
// ///////////////////////////////////////////////////////////////////
// Table view pane  -- view of a class/
var UI = require('solid-ui');

module.exports = {
  icon: UI.icons.originalIconBase + 'table.png',
  name: 'tableOfClass',
  label: function label(subject, context) {
    var store = context.session.store; // if (!store.holds(subject, UI.ns.rdf('type'),UI.ns.rdfs('Class'))) return null

    if (!store.any(undefined, UI.ns.rdf('type'), subject)) {
      return null;
    }

    var n = store.statementsMatching(undefined, UI.ns.rdf('type'), subject).length;

    if (n === 0) {
      // None, suppress pane
      return null;
    }

    if (n > 15) {
      // @@ At the moment this pane can be slow with too many @@ fixme by using limits
      return null;
    }

    return UI.utils.label(subject) + ' table';
  },
  render: function render(subject, context) {
    var myDocument = context.dom;
    var div = myDocument.createElement('div');
    div.setAttribute('class', 'tablePane');
    div.appendChild(UI.table(myDocument, {
      tableClass: subject
    }));
    return div;
  }
};
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