@jbrowse/core/esm/PhasedScheduler.js

JBrowse 2 core libraries used by plugins

export default class PhasedScheduler {
    phaseCallbacks = new Map();
    phaseOrder = [];
    constructor(...phaseOrder) {
        this.phaseOrder = phaseOrder;
    }
    add(phase, callback) {
        if (!this.phaseOrder.includes(phase)) {
            throw new Error(`unknown phase ${phase}`);
        }
        let phaseCallbacks = this.phaseCallbacks.get(phase);
        if (!phaseCallbacks) {
            phaseCallbacks = [];
            this.phaseCallbacks.set(phase, phaseCallbacks);
        }
        phaseCallbacks.push(callback);
    }
    run() {
        for (const phaseName of this.phaseOrder) {
            for (const callback of this.phaseCallbacks.get(phaseName) || []) {
                callback();
            }
        }
    }
}