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node_modules/enquirer/lib/prompts/form.js

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+'use strict';
+
+const stripAnsi = require('strip-ansi');
+const SelectPrompt = require('./select');
+const placeholder = require('../placeholder');
+
+class FormPrompt extends SelectPrompt {
+  constructor(options) {
+    super({ ...options, multiple: true });
+    this.type = 'form';
+    this.initial = this.options.initial;
+    this.align = [this.options.align, 'right'].find(v => v != null);
+    this.emptyError = '';
+    this.values = {};
+  }
+
+  async reset(first) {
+    await super.reset();
+    if (first === true) this._index = this.index;
+    this.index = this._index;
+    this.values = {};
+    this.choices.forEach(choice => choice.reset && choice.reset());
+    return this.render();
+  }
+
+  dispatch(char) {
+    return !!char && this.append(char);
+  }
+
+  append(char) {
+    let choice = this.focused;
+    if (!choice) return this.alert();
+    let { cursor, input } = choice;
+    choice.value = choice.input = input.slice(0, cursor) + char + input.slice(cursor);
+    choice.cursor++;
+    return this.render();
+  }
+
+  delete() {
+    let choice = this.focused;
+    if (!choice || choice.cursor <= 0) return this.alert();
+    let { cursor, input } = choice;
+    choice.value = choice.input = input.slice(0, cursor - 1) + input.slice(cursor);
+    choice.cursor--;
+    return this.render();
+  }
+
+  deleteForward() {
+    let choice = this.focused;
+    if (!choice) return this.alert();
+    let { cursor, input } = choice;
+    if (input[cursor] === void 0) return this.alert();
+    let str = `${input}`.slice(0, cursor) + `${input}`.slice(cursor + 1);
+    choice.value = choice.input = str;
+    return this.render();
+  }
+
+  right() {
+    let choice = this.focused;
+    if (!choice) return this.alert();
+    if (choice.cursor >= choice.input.length) return this.alert();
+    choice.cursor++;
+    return this.render();
+  }
+
+  left() {
+    let choice = this.focused;
+    if (!choice) return this.alert();
+    if (choice.cursor <= 0) return this.alert();
+    choice.cursor--;
+    return this.render();
+  }
+
+  space(ch, key) {
+    return this.dispatch(ch, key);
+  }
+
+  number(ch, key) {
+    return this.dispatch(ch, key);
+  }
+
+  next() {
+    let ch = this.focused;
+    if (!ch) return this.alert();
+    let { initial, input } = ch;
+    if (initial && initial.startsWith(input) && input !== initial) {
+      ch.value = ch.input = initial;
+      ch.cursor = ch.value.length;
+      return this.render();
+    }
+    return super.next();
+  }
+
+  prev() {
+    let ch = this.focused;
+    if (!ch) return this.alert();
+    if (ch.cursor === 0) return super.prev();
+    ch.value = ch.input = '';
+    ch.cursor = 0;
+    return this.render();
+  }
+
+  separator() {
+    return '';
+  }
+
+  format(value) {
+    return !this.state.submitted ? super.format(value) : '';
+  }
+
+  pointer() {
+    return '';
+  }
+
+  indicator(choice) {
+    return choice.input ? '⦿' : '⊙';
+  }
+
+  async choiceSeparator(choice, i) {
+    let sep = await this.resolve(choice.separator, this.state, choice, i) || ':';
+    return sep ? ' ' + this.styles.disabled(sep) : '';
+  }
+
+  async renderChoice(choice, i) {
+    await this.onChoice(choice, i);
+
+    let { state, styles } = this;
+    let { cursor, initial = '', name, input = '' } = choice;
+    let { muted, submitted, primary, danger } = styles;
+
+    let focused = this.index === i;
+    let validate = choice.validate || (() => true);
+    let sep = await this.choiceSeparator(choice, i);
+    let msg = choice.message;
+
+    if (this.align === 'right') msg = msg.padStart(this.longest + 1, ' ');
+    if (this.align === 'left') msg = msg.padEnd(this.longest + 1, ' ');
+
+    // re-populate the form values (answers) object
+    let value = this.values[name] = (input || initial);
+    let color = input ? 'success' : 'dark';
+
+    if ((await validate.call(choice, value, this.state)) !== true) {
+      color = 'danger';
+    }
+
+    let style = styles[color];
+    let indicator = style(await this.indicator(choice, i)) + (choice.pad || '');
+
+    let indent = this.indent(choice);
+    let line = () => [indent, indicator, msg + sep, input ].filter(Boolean).join(' ');
+
+    if (state.submitted) {
+      msg = stripAnsi(msg);
+      input = submitted(input);
+
+      return line();
+    }
+
+    if (choice.format) {
+      input = await choice.format.call(this, input, choice, i);
+    } else {
+      let color = this.styles.muted;
+      let options = { input, initial, pos: cursor, showCursor: focused, color };
+      input = placeholder(this, options);
+    }
+
+    if (!this.isValue(input)) {
+      input = this.styles.muted(this.symbols.ellipsis);
+    }
+
+    if (choice.result) {
+      this.values[name] = await choice.result.call(this, value, choice, i);
+    }
+
+    if (focused) {
+      msg = primary(msg);
+    }
+
+    if (choice.error) {
+      input += (input ? ' ' : '') + danger(choice.error.trim());
+    } else if (choice.hint) {
+      input += (input ? ' ' : '') + muted(choice.hint.trim());
+    }
+
+    return line();
+  }
+
+  async submit() {
+    this.value = this.values;
+    return super.base.submit.call(this);
+  }
+}
+
+module.exports = FormPrompt;