/
PatternPrompt.ts
59 lines (48 loc) · 1.71 KB
/
PatternPrompt.ts
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/**
* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
import chalk from 'chalk';
import ansiEscapes from 'ansi-escapes';
import {specialChars} from 'jest-util';
import Prompt from './lib/Prompt';
const {CLEAR} = specialChars;
const usage = (entity: string) =>
`\n${chalk.bold('Pattern Mode Usage')}\n` +
` ${chalk.dim('\u203A Press')} Esc ${chalk.dim('to exit pattern mode.')}\n` +
` ${chalk.dim('\u203A Press')} Enter ` +
`${chalk.dim(`to filter by a ${entity} regex pattern.`)}\n` +
`\n`;
const usageRows = usage('').split('\n').length;
export default class PatternPrompt {
_pipe: NodeJS.WritableStream;
_prompt: Prompt;
_entityName: string;
_currentUsageRows: number;
constructor(pipe: NodeJS.WritableStream, prompt: Prompt) {
// TODO: Should come in the constructor
this._entityName = '';
this._pipe = pipe;
this._prompt = prompt;
this._currentUsageRows = usageRows;
}
run(onSuccess: () => void, onCancel: () => void, options?: {header: string}) {
this._pipe.write(ansiEscapes.cursorHide);
this._pipe.write(CLEAR);
if (options && options.header) {
this._pipe.write(options.header + '\n');
this._currentUsageRows = usageRows + options.header.split('\n').length;
} else {
this._currentUsageRows = usageRows;
}
this._pipe.write(usage(this._entityName));
this._pipe.write(ansiEscapes.cursorShow);
this._prompt.enter(this._onChange.bind(this), onSuccess, onCancel);
}
protected _onChange() {
this._pipe.write(ansiEscapes.eraseLine);
this._pipe.write(ansiEscapes.cursorLeft);
}
}