Method initAsync

modules/core/PresetSystem.js:67–112

* initAsync * Called after all core objects have been constructed. * @return {Promise} Promise resolved when this component has completed initialization

()

   * @return {Promise} Promise resolved when this component has completed initialization
   */
  initAsync() {
    if (this._initPromise) return this._initPromise;

    for (const id of this.dependencies) {
      if (!this.context.systems[id]) {
        return Promise.reject(`Cannot init:  ${this.id} requires ${id}`);
      }
    }

    const context = this.context;
    const assets = context.systems.assets;
    const locations = context.systems.locations;
    const urlhash = context.systems.urlhash;

    const prerequisites = Promise.all([
      assets.initAsync(),
      locations.initAsync(),
      urlhash.initAsync()
    ]);

    return this._initPromise = prerequisites
      .then(() => {
        // If we received a subset of addable presetIDs specified in the url hash, save them.
        const presetIDs = urlhash.initialHashParams.get('presets');
        if (presetIDs) {
          const arr = presetIDs.split(',').map(s => s.trim()).filter(Boolean);
          this.addablePresetIDs = new Set(arr);
        }

        // Fetch the preset data
        return Promise.all([
          assets.loadAssetAsync('tagging_preset_categories'),
          assets.loadAssetAsync('tagging_preset_defaults'),
          assets.loadAssetAsync('tagging_preset_presets'),
          assets.loadAssetAsync('tagging_preset_fields'),
          assets.loadAssetAsync('tagging_preset_overrides')   // customizations to merge in after the id-tagging-schema
        ]);
      })
      .then(vals => {
        this.merge({ categories: vals[0], defaults: vals[1], presets: vals[2], fields: vals[3] });
        this.merge(vals[4]);
        osmSetAreaKeys(this.areaKeys());
        osmSetPointTags(this.pointTags());
        osmSetVertexTags(this.vertexTags());
      });
  }


  /**