Method _processQueue

modules/core/ValidationSystem.js:785–808

* _processQueue * Process the next chunk of deferred validation work * This may take time but happen in the background during browser idle time. * @param {ValidationCache} cache - The cache to process (`_head` or `_base`) * @return {Promise} Promise fulfilled when the validation has c

(cache)

   * @return {Promise}  Promise fulfilled when the validation has completed.
   */
  _processQueue(cache) {
    // console.log(`${cache.which} queue length ${cache.queue.length}`);

    if (!cache.queue.length) return Promise.resolve();  // we're done
    const chunk = cache.queue.pop();

    return new Promise((resolve, reject) => {
        const handle = window.requestIdleCallback(() => {
          this._deferredRIC.delete(handle);
          // const t0 = performance.now();
          chunk.forEach(job => job());
          // const t1 = performance.now();
          // console.log('chunk processed in ' + (t1 - t0) + ' ms');
          resolve();
        });
        this._deferredRIC.set(handle, reject);
      })
      .then(() => { // dispatch an event sometimes to redraw various UI things
        if (cache.queue.length % 100 === 0) {
          this.emit('validated');
        }
      })
      .then(() => this._processQueue(cache));
  }
}