mirror of
https://github.com/shivammathur/setup-php.git
synced 2024-11-30 07:13:04 +07:00
182 lines
4.5 KiB
JavaScript
182 lines
4.5 KiB
JavaScript
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const color = require('kleur');
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const Prompt = require('./prompt');
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const { erase, cursor } = require('sisteransi');
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const { style, clear, lines, figures } = require('../util');
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/**
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* TextPrompt Base Element
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* @param {Object} opts Options
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* @param {String} opts.message Message
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* @param {String} [opts.style='default'] Render style
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* @param {String} [opts.initial] Default value
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* @param {Function} [opts.validate] Validate function
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* @param {Stream} [opts.stdin] The Readable stream to listen to
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* @param {Stream} [opts.stdout] The Writable stream to write readline data to
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* @param {String} [opts.error] The invalid error label
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*/
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class TextPrompt extends Prompt {
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constructor(opts={}) {
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super(opts);
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this.transform = style.render(opts.style);
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this.scale = this.transform.scale;
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this.msg = opts.message;
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this.initial = opts.initial || ``;
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this.validator = opts.validate || (() => true);
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this.value = ``;
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this.errorMsg = opts.error || `Please Enter A Valid Value`;
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this.cursor = Number(!!this.initial);
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this.clear = clear(``);
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this.render();
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}
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set value(v) {
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if (!v && this.initial) {
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this.placeholder = true;
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this.rendered = color.gray(this.transform.render(this.initial));
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} else {
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this.placeholder = false;
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this.rendered = this.transform.render(v);
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}
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this._value = v;
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this.fire();
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}
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get value() {
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return this._value;
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}
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reset() {
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this.value = ``;
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this.cursor = Number(!!this.initial);
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this.fire();
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this.render();
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}
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abort() {
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this.value = this.value || this.initial;
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this.done = this.aborted = true;
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this.error = false;
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this.red = false;
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this.fire();
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this.render();
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this.out.write('\n');
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this.close();
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}
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async validate() {
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let valid = await this.validator(this.value);
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if (typeof valid === `string`) {
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this.errorMsg = valid;
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valid = false;
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}
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this.error = !valid;
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}
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async submit() {
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this.value = this.value || this.initial;
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await this.validate();
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if (this.error) {
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this.red = true;
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this.fire();
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this.render();
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return;
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}
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this.done = true;
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this.aborted = false;
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this.fire();
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this.render();
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this.out.write('\n');
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this.close();
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}
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next() {
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if (!this.placeholder) return this.bell();
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this.value = this.initial;
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this.cursor = this.rendered.length;
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this.fire();
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this.render();
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}
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moveCursor(n) {
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if (this.placeholder) return;
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this.cursor = this.cursor+n;
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}
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_(c, key) {
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let s1 = this.value.slice(0, this.cursor);
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let s2 = this.value.slice(this.cursor);
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this.value = `${s1}${c}${s2}`;
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this.red = false;
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this.cursor = this.placeholder ? 0 : s1.length+1;
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this.render();
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}
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delete() {
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if (this.cursor === 0) return this.bell();
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let s1 = this.value.slice(0, this.cursor-1);
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let s2 = this.value.slice(this.cursor);
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this.value = `${s1}${s2}`;
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this.red = false;
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this.moveCursor(-1);
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this.render();
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}
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deleteForward() {
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if(this.cursor*this.scale >= this.rendered.length || this.placeholder) return this.bell();
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let s1 = this.value.slice(0, this.cursor);
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let s2 = this.value.slice(this.cursor+1);
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this.value = `${s1}${s2}`;
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this.red = false;
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this.render();
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}
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first() {
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this.cursor = 0;
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this.render();
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}
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last() {
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this.cursor = this.value.length;
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this.render();
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}
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left() {
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if (this.cursor <= 0 || this.placeholder) return this.bell();
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this.moveCursor(-1);
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this.render();
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}
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right() {
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if (this.cursor*this.scale >= this.rendered.length || this.placeholder) return this.bell();
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this.moveCursor(1);
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this.render();
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}
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render() {
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if (this.closed) return;
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if (!this.firstRender) {
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if (this.outputError)
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this.out.write(cursor.down(lines(this.outputError) - 1) + clear(this.outputError));
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this.out.write(clear(this.outputText));
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}
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super.render();
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this.outputError = '';
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this.outputText = [
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style.symbol(this.done, this.aborted),
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color.bold(this.msg),
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style.delimiter(this.done),
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this.red ? color.red(this.rendered) : this.rendered
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].join(` `);
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if (this.error) {
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this.outputError += this.errorMsg.split(`\n`)
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.reduce((a, l, i) => a + `\n${i ? ' ' : figures.pointerSmall} ${color.red().italic(l)}`, ``);
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}
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this.out.write(erase.line + cursor.to(0) + this.outputText + cursor.save + this.outputError + cursor.restore);
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}
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}
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module.exports = TextPrompt;
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