hydrogen-web/src/observable/map/BaseObservableMap.js

import MapOperator from "./operators/MapOperator.js";
import SortOperator from "./operators/SortOperator.js";
import BaseObservableCollection from "../BaseObservableCollection.js";

export default class BaseObservableMap extends BaseObservableCollection {
    emitReset() {
        for(let h of this._handlers) {
            h.onReset();
        }
    }
    // we need batch events, mostly on index based collection though?
    // maybe we should get started without?
    emitAdd(key, value) {
        for(let h of this._handlers) {
            h.onAdd(key, value);
        }
    }

    emitChange(key, value, ...params) {
        for(let h of this._handlers) {
            h.onChange(key, value, ...params);
        }
    }

    emitRemove(key, value) {
        for(let h of this._handlers) {
            h.onRemove(key, value);
        }
    }

    map(mapper, updater) {
        return new MapOperator(this, mapper, updater);
    }

    sort(comparator) {
        return new SortOperator(this, comparator);
    }
}