@pilotlab/lux-debug/src/logCursor.js

A luxurious user experience framework, developed by your friends at Pilot.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var readline = require('readline');
var LogCursor = (function () {
    function LogCursor(console) {
        this._console = console;
    }
    LogCursor.prototype.setLine = function (value) { return this.setPosition(undefined, value); };
    LogCursor.prototype.setColumn = function (value) { return this.setPosition(value, undefined); };
    LogCursor.prototype.setPosition = function (x, y) { readline.cursorTo(this._console.stream, x, y); return this; };
    LogCursor.prototype.move = function (x, y) { readline.moveCursor(this._console.stream, x, y); return this; };
    LogCursor.prototype.up = function (value) {
        if (value === void 0) { value = 1; }
        return this.move(0, -Math.abs(value));
    };
    LogCursor.prototype.down = function (value) {
        if (value === void 0) { value = 1; }
        return this.move(0, Math.abs(value));
    };
    LogCursor.prototype.left = function (value) {
        if (value === void 0) { value = 1; }
        return this.move(-Math.abs(value), 0);
    };
    LogCursor.prototype.right = function (value) {
        if (value === void 0) { value = 1; }
        return this.move(Math.abs(value), 0);
    };
    LogCursor.prototype.hide = function () {
        this._readline = readline.createInterface({
            input: process.stdin,
            output: process.stdout
        });
        if (this._readline)
            this._readline.pause();
        this._console.stream.write(this._encode('[?25l'));
        return this;
    };
    LogCursor.prototype.show = function () {
        if (this._readline) {
            this._readline.close();
        }
        this._console.stream.write(this._encode('[?25h'));
        return this;
    };
    LogCursor.prototype._encode = function (value) {
        return new Buffer([0x1b].concat(value.split('').map(function (value) { return value.charCodeAt(0); })));
    };
    ;
    return LogCursor;
}());
exports.LogCursor = LogCursor;
exports.default = LogCursor;
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