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143 lines
3.9 KiB
JavaScript
143 lines
3.9 KiB
JavaScript
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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// TODO(petamoriken): enable prefer-primordials for node polyfills
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// deno-lint-ignore-file prefer-primordials
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"use strict";
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import {
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ERR_INVALID_ARG_VALUE,
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ERR_INVALID_CURSOR_POS,
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} from "ext:deno_node/internal/errors.ts";
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import { validateFunction } from "ext:deno_node/internal/validators.mjs";
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import { CSI } from "ext:deno_node/internal/readline/utils.mjs";
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const {
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kClearLine,
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kClearScreenDown,
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kClearToLineBeginning,
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kClearToLineEnd,
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} = CSI;
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/**
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* moves the cursor to the x and y coordinate on the given stream
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*/
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export function cursorTo(stream, x, y, callback) {
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if (callback !== undefined) {
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validateFunction(callback, "callback");
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}
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if (typeof y === "function") {
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callback = y;
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y = undefined;
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}
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if (Number.isNaN(x)) throw new ERR_INVALID_ARG_VALUE("x", x);
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if (Number.isNaN(y)) throw new ERR_INVALID_ARG_VALUE("y", y);
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if (stream == null || (typeof x !== "number" && typeof y !== "number")) {
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if (typeof callback === "function") process.nextTick(callback, null);
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return true;
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}
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if (typeof x !== "number") throw new ERR_INVALID_CURSOR_POS();
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const data = typeof y !== "number" ? CSI`${x + 1}G` : CSI`${y + 1};${x + 1}H`;
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return stream.write(data, callback);
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}
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/**
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* moves the cursor relative to its current location
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*/
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export function moveCursor(stream, dx, dy, callback) {
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if (callback !== undefined) {
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validateFunction(callback, "callback");
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}
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if (stream == null || !(dx || dy)) {
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if (typeof callback === "function") process.nextTick(callback, null);
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return true;
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}
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let data = "";
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if (dx < 0) {
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data += CSI`${-dx}D`;
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} else if (dx > 0) {
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data += CSI`${dx}C`;
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}
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if (dy < 0) {
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data += CSI`${-dy}A`;
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} else if (dy > 0) {
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data += CSI`${dy}B`;
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}
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return stream.write(data, callback);
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}
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/**
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* clears the current line the cursor is on:
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* -1 for left of the cursor
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* +1 for right of the cursor
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* 0 for the entire line
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*/
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export function clearLine(stream, dir, callback) {
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if (callback !== undefined) {
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validateFunction(callback, "callback");
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}
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if (stream === null || stream === undefined) {
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if (typeof callback === "function") process.nextTick(callback, null);
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return true;
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}
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const type = dir < 0
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? kClearToLineBeginning
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: dir > 0
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? kClearToLineEnd
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: kClearLine;
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return stream.write(type, callback);
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}
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/**
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* clears the screen from the current position of the cursor down
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*/
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export function clearScreenDown(stream, callback) {
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if (callback !== undefined) {
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validateFunction(callback, "callback");
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}
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if (stream === null || stream === undefined) {
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if (typeof callback === "function") process.nextTick(callback, null);
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return true;
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}
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return stream.write(kClearScreenDown, callback);
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}
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