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