150 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			150 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| 'use strict';
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| 
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| Object.defineProperty(exports, '__esModule', {
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|   value: true
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| });
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| exports.default = void 0;
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| 
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| var _constants = require('../constants');
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| 
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| function _defineProperty(obj, key, value) {
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|   if (key in obj) {
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|     Object.defineProperty(obj, key, {
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|       value: value,
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|       enumerable: true,
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|       configurable: true,
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|       writable: true
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|     });
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|   } else {
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|     obj[key] = value;
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|   }
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|   return obj;
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| }
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| 
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| class Prompt {
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|   constructor() {
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|     _defineProperty(this, '_entering', void 0);
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| 
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|     _defineProperty(this, '_value', void 0);
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| 
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|     _defineProperty(this, '_onChange', void 0);
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| 
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|     _defineProperty(this, '_onSuccess', void 0);
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| 
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|     _defineProperty(this, '_onCancel', void 0);
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| 
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|     _defineProperty(this, '_offset', void 0);
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| 
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|     _defineProperty(this, '_promptLength', void 0);
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| 
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|     _defineProperty(this, '_selection', void 0);
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| 
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|     _defineProperty(this, '_onResize', () => {
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|       this._onChange();
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|     });
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| 
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|     // Copied from `enter` to satisfy TS
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|     this._entering = true;
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|     this._value = '';
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|     this._selection = null;
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|     this._offset = -1;
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|     this._promptLength = 0;
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| 
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|     this._onChange = () => {};
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| 
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|     this._onSuccess = () => {};
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| 
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|     this._onCancel = () => {};
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|   }
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| 
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|   enter(onChange, onSuccess, onCancel) {
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|     this._entering = true;
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|     this._value = '';
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|     this._onSuccess = onSuccess;
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|     this._onCancel = onCancel;
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|     this._selection = null;
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|     this._offset = -1;
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|     this._promptLength = 0;
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| 
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|     this._onChange = () =>
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|       onChange(this._value, {
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|         max: 10,
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|         offset: this._offset
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|       });
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| 
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|     this._onChange();
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| 
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|     process.stdout.on('resize', this._onResize);
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|   }
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| 
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|   setPromptLength(length) {
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|     this._promptLength = length;
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|   }
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| 
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|   setPromptSelection(selected) {
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|     this._selection = selected;
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|   }
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| 
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|   put(key) {
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|     switch (key) {
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|       case _constants.KEYS.ENTER:
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|         this._entering = false;
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| 
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|         this._onSuccess(this._selection || this._value);
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| 
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|         this.abort();
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|         break;
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| 
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|       case _constants.KEYS.ESCAPE:
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|         this._entering = false;
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| 
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|         this._onCancel(this._value);
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| 
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|         this.abort();
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|         break;
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| 
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|       case _constants.KEYS.ARROW_DOWN:
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|         this._offset = Math.min(this._offset + 1, this._promptLength - 1);
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| 
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|         this._onChange();
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| 
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|         break;
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| 
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|       case _constants.KEYS.ARROW_UP:
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|         this._offset = Math.max(this._offset - 1, -1);
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| 
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|         this._onChange();
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| 
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|         break;
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| 
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|       case _constants.KEYS.ARROW_LEFT:
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|       case _constants.KEYS.ARROW_RIGHT:
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|         break;
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| 
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|       default:
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|         this._value =
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|           key === _constants.KEYS.BACKSPACE
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|             ? this._value.slice(0, -1)
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|             : this._value + key;
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|         this._offset = -1;
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|         this._selection = null;
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| 
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|         this._onChange();
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| 
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|         break;
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|     }
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|   }
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| 
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|   abort() {
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|     this._entering = false;
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|     this._value = '';
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|     process.stdout.removeListener('resize', this._onResize);
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|   }
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| 
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|   isEntering() {
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|     return this._entering;
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|   }
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| }
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| 
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| exports.default = Prompt;
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