Method defaults

modules/core/PresetSystem.js:489–530

* defaults * Defaults are the Presets and Categories offered to the user when adding a new feature. * Each geometry type has its own set of defaults. * The fallback preset for the given geometry is appended to the list automatically. * @param geometry * @param limit

(geometry, limit = 10, startWithRecents = true, loc = null)

   * @return  Collection
   */
  defaults(geometry, limit = 10, startWithRecents = true, loc = null) {
    let results = new Map();   // Map (itemID -> item)  (may be a Preset or a Category)

    if (startWithRecents) {
      for (const preset of this.getRecents()) {
        if (results.size < MAXRECENTS_SHOW && preset.matchGeometry(geometry)) {
          results.set(preset.id, preset);
        }
      }
    }

    // If there is a set of addable presetIDs, use that instead of defaults
    if (this.addablePresetIDs instanceof Set) {
      for (const itemID of this.addablePresetIDs) {
        const item = this.item(itemID);
        if (item?.matchGeometry(geometry)) {
          results.set(itemID, item);
        }
      }
    } else {
      for (const item of this._defaults[geometry]) {
        if (item.matchGeometry(geometry)) {
          results.set(item.id, item);
        }
      }
    }

    const fallback = this.fallback(geometry);
    if (fallback && !results.has(fallback.id)) {
      results.set(fallback.id, fallback);
    }

    // If a location was provided, filter results to only those valid here.
    let arr = [...results.values()];
    if (Array.isArray(loc)) {
      const locations = this.context.systems.locations;
      const validHere = locations.locationSetsAt(loc);
      arr = arr.filter(item => !item.locationSetID || validHere[item.locationSetID]);
    }

    return new Collection(this.context, arr.slice(0, limit - 1));
  }


  /**