.

qwen/nodejs/node_modules/prompts/dist/elements/prompt.js

@@ -0,0 +1,82 @@
+'use strict';
+
+const readline = require('readline');
+
+const _require = require('../util'),
+      action = _require.action;
+
+const EventEmitter = require('events');
+
+const _require2 = require('sisteransi'),
+      beep = _require2.beep,
+      cursor = _require2.cursor;
+
+const color = require('kleur');
+/**
+ * Base prompt skeleton
+ * @param {Stream} [opts.stdin] The Readable stream to listen to
+ * @param {Stream} [opts.stdout] The Writable stream to write readline data to
+ */
+
+
+class Prompt extends EventEmitter {
+  constructor(opts = {}) {
+    super();
+    this.firstRender = true;
+    this.in = opts.stdin || process.stdin;
+    this.out = opts.stdout || process.stdout;
+
+    this.onRender = (opts.onRender || (() => void 0)).bind(this);
+
+    const rl = readline.createInterface({
+      input: this.in,
+      escapeCodeTimeout: 50
+    });
+    readline.emitKeypressEvents(this.in, rl);
+    if (this.in.isTTY) this.in.setRawMode(true);
+    const isSelect = ['SelectPrompt', 'MultiselectPrompt'].indexOf(this.constructor.name) > -1;
+
+    const keypress = (str, key) => {
+      let a = action(key, isSelect);
+
+      if (a === false) {
+        this._ && this._(str, key);
+      } else if (typeof this[a] === 'function') {
+        this[a](key);
+      } else {
+        this.bell();
+      }
+    };
+
+    this.close = () => {
+      this.out.write(cursor.show);
+      this.in.removeListener('keypress', keypress);
+      if (this.in.isTTY) this.in.setRawMode(false);
+      rl.close();
+      this.emit(this.aborted ? 'abort' : this.exited ? 'exit' : 'submit', this.value);
+      this.closed = true;
+    };
+
+    this.in.on('keypress', keypress);
+  }
+
+  fire() {
+    this.emit('state', {
+      value: this.value,
+      aborted: !!this.aborted,
+      exited: !!this.exited
+    });
+  }
+
+  bell() {
+    this.out.write(beep);
+  }
+
+  render() {
+    this.onRender(color);
+    if (this.firstRender) this.firstRender = false;
+  }
+
+}
+
+module.exports = Prompt;