@patternplate/client/lib/app/utils/highlight.js

Universal javascript client application for patternplate

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _arson = _interopRequireDefault(require("arson"));

var _lodash = require("lodash");

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var _default = highlight;
exports.default = _default;
const startWorker = (0, _lodash.memoize)(url => {
  const _global = global,
        Worker = _global.Worker;
  return new Worker(url);
});

function highlight(options) {
  return new Promise((resolve, reject) => {
    const worker = startWorker(options.worker);

    const onWorkerMessage = e => {
      const data = _arson.default.parse(e.data);

      if (data.id !== options.id) {
        return;
      }

      if (data.payload.type === "error") {
        return reject(data.payload.error);
      }

      resolve(data);
      worker.removeEventListener("message", onWorkerMessage);
    };

    worker.addEventListener("message", onWorkerMessage);
    worker.postMessage(_arson.default.stringify(options));
  });
}
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