const color = require('kleur'); const Prompt = require('./prompt'); const { style, clear } = require('../util'); const { cursor, erase } = require('sisteransi'); /** * TogglePrompt Base Element * @param {Object} opts Options * @param {String} opts.message Message * @param {Boolean} [opts.initial=false] Default value * @param {String} [opts.active='no'] Active label * @param {String} [opts.inactive='off'] Inactive label * @param {Stream} [opts.stdin] The Readable stream to listen to * @param {Stream} [opts.stdout] The Writable stream to write readline data to */ class TogglePrompt extends Prompt { constructor(opts={}) { super(opts); this.msg = opts.message; this.value = !!opts.initial; this.active = opts.active || 'on'; this.inactive = opts.inactive || 'off'; this.initialValue = this.value; this.render(); } reset() { this.value = this.initialValue; this.fire(); this.render(); } abort() { this.done = this.aborted = true; this.fire(); this.render(); this.out.write('\n'); this.close(); } submit() { this.done = true; this.aborted = false; this.fire(); this.render(); this.out.write('\n'); this.close(); } deactivate() { if (this.value === false) return this.bell(); this.value = false; this.render(); } activate() { if (this.value === true) return this.bell(); this.value = true; this.render(); } delete() { this.deactivate(); } left() { this.deactivate(); } right() { this.activate(); } down() { this.deactivate(); } up() { this.activate(); } next() { this.value = !this.value; this.fire(); this.render(); } _(c, key) { if (c === ' ') { this.value = !this.value; } else if (c === '1') { this.value = true; } else if (c === '0') { this.value = false; } else return this.bell(); this.render(); } render() { if (this.closed) return; if (this.firstRender) this.out.write(cursor.hide); super.render(); this.out.write( erase.lines(this.first ? 1 : this.msg.split(/\n/g).length) + cursor.to(0) + [ style.symbol(this.done, this.aborted), color.bold(this.msg), style.delimiter(this.done), this.value ? this.inactive : color.cyan().underline(this.inactive), color.gray('/'), this.value ? color.cyan().underline(this.active) : this.active ].join(' ') ); } } module.exports = TogglePrompt;