You can not select more than 25 topics
			Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
		
		
		
		
		
			
		
			
				
					
					
						
							245 lines
						
					
					
						
							6.2 KiB
						
					
					
				
			
		
		
	
	
							245 lines
						
					
					
						
							6.2 KiB
						
					
					
				"use strict"; | 
						|
 | 
						|
function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } } | 
						|
 | 
						|
function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; } | 
						|
 | 
						|
const color = require('kleur'); | 
						|
 | 
						|
const Prompt = require('./prompt'); | 
						|
 | 
						|
const _require = require('sisteransi'), | 
						|
      erase = _require.erase, | 
						|
      cursor = _require.cursor; | 
						|
 | 
						|
const _require2 = require('../util'), | 
						|
      style = _require2.style, | 
						|
      clear = _require2.clear, | 
						|
      lines = _require2.lines, | 
						|
      figures = _require2.figures; | 
						|
/** | 
						|
 * TextPrompt Base Element | 
						|
 * @param {Object} opts Options | 
						|
 * @param {String} opts.message Message | 
						|
 * @param {String} [opts.style='default'] Render style | 
						|
 * @param {String} [opts.initial] Default value | 
						|
 * @param {Function} [opts.validate] Validate function | 
						|
 * @param {Stream} [opts.stdin] The Readable stream to listen to | 
						|
 * @param {Stream} [opts.stdout] The Writable stream to write readline data to | 
						|
 * @param {String} [opts.error] The invalid error label | 
						|
 */ | 
						|
 | 
						|
 | 
						|
class TextPrompt extends Prompt { | 
						|
  constructor(opts = {}) { | 
						|
    super(opts); | 
						|
    this.transform = style.render(opts.style); | 
						|
    this.scale = this.transform.scale; | 
						|
    this.msg = opts.message; | 
						|
    this.initial = opts.initial || ``; | 
						|
 | 
						|
    this.validator = opts.validate || (() => true); | 
						|
 | 
						|
    this.value = ``; | 
						|
    this.errorMsg = opts.error || `Please Enter A Valid Value`; | 
						|
    this.cursor = Number(!!this.initial); | 
						|
    this.cursorOffset = 0; | 
						|
    this.clear = clear(``, this.out.columns); | 
						|
    this.render(); | 
						|
  } | 
						|
 | 
						|
  set value(v) { | 
						|
    if (!v && this.initial) { | 
						|
      this.placeholder = true; | 
						|
      this.rendered = color.gray(this.transform.render(this.initial)); | 
						|
    } else { | 
						|
      this.placeholder = false; | 
						|
      this.rendered = this.transform.render(v); | 
						|
    } | 
						|
 | 
						|
    this._value = v; | 
						|
    this.fire(); | 
						|
  } | 
						|
 | 
						|
  get value() { | 
						|
    return this._value; | 
						|
  } | 
						|
 | 
						|
  reset() { | 
						|
    this.value = ``; | 
						|
    this.cursor = Number(!!this.initial); | 
						|
    this.cursorOffset = 0; | 
						|
    this.fire(); | 
						|
    this.render(); | 
						|
  } | 
						|
 | 
						|
  exit() { | 
						|
    this.abort(); | 
						|
  } | 
						|
 | 
						|
  abort() { | 
						|
    this.value = this.value || this.initial; | 
						|
    this.done = this.aborted = true; | 
						|
    this.error = false; | 
						|
    this.red = false; | 
						|
    this.fire(); | 
						|
    this.render(); | 
						|
    this.out.write('\n'); | 
						|
    this.close(); | 
						|
  } | 
						|
 | 
						|
  validate() { | 
						|
    var _this = this; | 
						|
 | 
						|
    return _asyncToGenerator(function* () { | 
						|
      let valid = yield _this.validator(_this.value); | 
						|
 | 
						|
      if (typeof valid === `string`) { | 
						|
        _this.errorMsg = valid; | 
						|
        valid = false; | 
						|
      } | 
						|
 | 
						|
      _this.error = !valid; | 
						|
    })(); | 
						|
  } | 
						|
 | 
						|
  submit() { | 
						|
    var _this2 = this; | 
						|
 | 
						|
    return _asyncToGenerator(function* () { | 
						|
      _this2.value = _this2.value || _this2.initial; | 
						|
      _this2.cursorOffset = 0; | 
						|
      _this2.cursor = _this2.rendered.length; | 
						|
      yield _this2.validate(); | 
						|
 | 
						|
      if (_this2.error) { | 
						|
        _this2.red = true; | 
						|
 | 
						|
        _this2.fire(); | 
						|
 | 
						|
        _this2.render(); | 
						|
 | 
						|
        return; | 
						|
      } | 
						|
 | 
						|
      _this2.done = true; | 
						|
      _this2.aborted = false; | 
						|
 | 
						|
      _this2.fire(); | 
						|
 | 
						|
      _this2.render(); | 
						|
 | 
						|
      _this2.out.write('\n'); | 
						|
 | 
						|
      _this2.close(); | 
						|
    })(); | 
						|
  } | 
						|
 | 
						|
  next() { | 
						|
    if (!this.placeholder) return this.bell(); | 
						|
    this.value = this.initial; | 
						|
    this.cursor = this.rendered.length; | 
						|
    this.fire(); | 
						|
    this.render(); | 
						|
  } | 
						|
 | 
						|
  moveCursor(n) { | 
						|
    if (this.placeholder) return; | 
						|
    this.cursor = this.cursor + n; | 
						|
    this.cursorOffset += n; | 
						|
  } | 
						|
 | 
						|
  _(c, key) { | 
						|
    let s1 = this.value.slice(0, this.cursor); | 
						|
    let s2 = this.value.slice(this.cursor); | 
						|
    this.value = `${s1}${c}${s2}`; | 
						|
    this.red = false; | 
						|
    this.cursor = this.placeholder ? 0 : s1.length + 1; | 
						|
    this.render(); | 
						|
  } | 
						|
 | 
						|
  delete() { | 
						|
    if (this.isCursorAtStart()) return this.bell(); | 
						|
    let s1 = this.value.slice(0, this.cursor - 1); | 
						|
    let s2 = this.value.slice(this.cursor); | 
						|
    this.value = `${s1}${s2}`; | 
						|
    this.red = false; | 
						|
 | 
						|
    if (this.isCursorAtStart()) { | 
						|
      this.cursorOffset = 0; | 
						|
    } else { | 
						|
      this.cursorOffset++; | 
						|
      this.moveCursor(-1); | 
						|
    } | 
						|
 | 
						|
    this.render(); | 
						|
  } | 
						|
 | 
						|
  deleteForward() { | 
						|
    if (this.cursor * this.scale >= this.rendered.length || this.placeholder) return this.bell(); | 
						|
    let s1 = this.value.slice(0, this.cursor); | 
						|
    let s2 = this.value.slice(this.cursor + 1); | 
						|
    this.value = `${s1}${s2}`; | 
						|
    this.red = false; | 
						|
 | 
						|
    if (this.isCursorAtEnd()) { | 
						|
      this.cursorOffset = 0; | 
						|
    } else { | 
						|
      this.cursorOffset++; | 
						|
    } | 
						|
 | 
						|
    this.render(); | 
						|
  } | 
						|
 | 
						|
  first() { | 
						|
    this.cursor = 0; | 
						|
    this.render(); | 
						|
  } | 
						|
 | 
						|
  last() { | 
						|
    this.cursor = this.value.length; | 
						|
    this.render(); | 
						|
  } | 
						|
 | 
						|
  left() { | 
						|
    if (this.cursor <= 0 || this.placeholder) return this.bell(); | 
						|
    this.moveCursor(-1); | 
						|
    this.render(); | 
						|
  } | 
						|
 | 
						|
  right() { | 
						|
    if (this.cursor * this.scale >= this.rendered.length || this.placeholder) return this.bell(); | 
						|
    this.moveCursor(1); | 
						|
    this.render(); | 
						|
  } | 
						|
 | 
						|
  isCursorAtStart() { | 
						|
    return this.cursor === 0 || this.placeholder && this.cursor === 1; | 
						|
  } | 
						|
 | 
						|
  isCursorAtEnd() { | 
						|
    return this.cursor === this.rendered.length || this.placeholder && this.cursor === this.rendered.length + 1; | 
						|
  } | 
						|
 | 
						|
  render() { | 
						|
    if (this.closed) return; | 
						|
 | 
						|
    if (!this.firstRender) { | 
						|
      if (this.outputError) this.out.write(cursor.down(lines(this.outputError, this.out.columns) - 1) + clear(this.outputError, this.out.columns)); | 
						|
      this.out.write(clear(this.outputText, this.out.columns)); | 
						|
    } | 
						|
 | 
						|
    super.render(); | 
						|
    this.outputError = ''; | 
						|
    this.outputText = [style.symbol(this.done, this.aborted), color.bold(this.msg), style.delimiter(this.done), this.red ? color.red(this.rendered) : this.rendered].join(` `); | 
						|
 | 
						|
    if (this.error) { | 
						|
      this.outputError += this.errorMsg.split(`\n`).reduce((a, l, i) => a + `\n${i ? ' ' : figures.pointerSmall} ${color.red().italic(l)}`, ``); | 
						|
    } | 
						|
 | 
						|
    this.out.write(erase.line + cursor.to(0) + this.outputText + cursor.save + this.outputError + cursor.restore + cursor.move(this.cursorOffset, 0)); | 
						|
  } | 
						|
 | 
						|
} | 
						|
 | 
						|
module.exports = TextPrompt; |