diagram-js/lib/util/Cursor.js

A toolbox for displaying and modifying diagrams on the web

import {
  classes as domClasses
} from 'min-dom';

var CURSOR_CLS_PATTERN = /^djs-cursor-.*$/;

/**
 * @param {string} mode
 */
export function set(mode) {
  var classes = domClasses(document.body);

  classes.removeMatching(CURSOR_CLS_PATTERN);

  if (mode) {
    classes.add('djs-cursor-' + mode);
  }
}

export function unset() {
  set(null);
}

/**
 * @param {string} mode
 *
 * @return {boolean}
 */
export function has(mode) {
  var classes = domClasses(document.body);

  return classes.has('djs-cursor-' + mode);
}