85 lines
2.2 KiB
JavaScript
85 lines
2.2 KiB
JavaScript
/**
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* 工作端 - 终端(命令行) - 模拟浏览器 alert、confirm、prompt 方法进行信息交互
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* @author Tevin
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*
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* @example
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* co(function* () {
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* const c = yield confirm2('测试confirm2');
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* console.log(c);
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* const p = yield prompt2('测试prompt2');
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* console.log(p);
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* process.stdin.end();
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* });
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*
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*/
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/**
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* 模拟消息框
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* @param {String} msg
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*/
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const alert = (msg) => {
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msg = typeof msg !== 'string' ? String(msg) : msg;
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process.stdout.write(msg + '\n')
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};
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/**
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* 模拟确认框，回调传参为用户选择的布尔值
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* @param {String} msg
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* @returns {Promise}
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*/
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const confirm2 = (msg) => {
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return new Promise((resolve, reject) => {
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msg = typeof msg !== 'string' ? String(msg) : msg;
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let readStdin = () => {
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let chunk = process.stdin.read();
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if (chunk !== null) {
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chunk = chunk.replace(/[\n\r\u0004]*$/, '');
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if (/^(y|yes|ok)$/i.test(chunk)) {
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resolve(true);
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} else {
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resolve(false);
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}
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readStdin = null;
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}
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};
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process.stdout.write(msg + '(y/n) ');
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process.stdin.setEncoding('utf8');
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process.stdin.on('readable', () => {
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readStdin && readStdin();
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});
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});
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};
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/**
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* 模拟输入框，回调传参为用户输入的字符串
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* @param {String} msg
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* @returns {Promise}
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*/
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const prompt2 = (msg) => {
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return new Promise((resolve, reject) => {
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msg = typeof msg !== 'string' ? String(msg) : msg;
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let readStdin = () => {
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let chunk = process.stdin.read();
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if (chunk !== null) {
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chunk = chunk.replace(/[\n\r\u0004]*$/, '');
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resolve(chunk);
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readStdin = null;
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}
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};
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process.stdout.write(msg + ' ');
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process.stdin.setEncoding('utf8');
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process.stdin.on('readable', () => {
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readStdin && readStdin();
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});
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});
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};
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const messageBox = (function () {
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return {
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alert: alert,
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confirm2: confirm2,
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prompt2: prompt2
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};
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})();
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module.exports = messageBox; |