Method startAsync

modules/core/UiSystem.js:173–218

* startAsync * Called after all core objects have been initialized. * @return {Promise} Promise resolved when this component has completed startup

()

   * @return {Promise} Promise resolved when this component has completed startup
   */
  startAsync() {
    if (this._startPromise) return this._startPromise;

    const context = this.context;
    const editor = context.systems.editor;
    const map = context.systems.map;
    const storage = context.systems.storage;
    const urlhash = context.systems.urlhash;
    const $container = context.container();

    if (!$container.size()) {
      return Promise.reject(new Error('No container to render to.'));
    }

    // These systems currently don't do anything in start,
    // but if they did, we'd want them to settle first.
    const prerequisites = Promise.all([
      editor.startAsync(),
      map.startAsync()
    ]);

    return this._startPromise = prerequisites
      .then(() => {
        this.render();  // Render one time
        this.resize();  // Update map dimensions - this should happen after .main-content and toolbars exist.

        context.enter('browse');

        // What to show first?
        const startWalkthrough = urlhash.initialHashParams.get('walkthrough') === 'true';
        const sawPrivacyVersion = parseInt(storage.getItem('sawPrivacyVersion'), 10) || 0;
        const sawWhatsNewVersion = parseInt(storage.getItem('sawWhatsNewVersion'), 10) || 0;

        if (startWalkthrough) {
          $container.call(uiIntro(context));     // Jump right into walkthrough..
        } else if (editor.canRestoreBackup) {
          $container.call(uiRestore(context));   // Offer to restore backup edits..
        } else if (sawPrivacyVersion !== context.privacyVersion) {
          $container.call(uiSplash(context));    // Show "Welcome to Rapid" / Privacy Policy
        } else if (sawWhatsNewVersion !== context.whatsNewVersion) {
          $container.call(uiWhatsNew(context));  // Show "Whats New"
        }

        this._started = true;
      });
  }


  /**