+++ /dev/null
-'use strict';
-/**
- * `rawlist` type prompt
- */
-
-var _ = {
- uniq: require('lodash/uniq'),
- isString: require('lodash/isString'),
- isNumber: require('lodash/isNumber'),
- findIndex: require('lodash/findIndex'),
-};
-var chalk = require('chalk');
-var { map, takeUntil } = require('rxjs/operators');
-var Base = require('./base');
-var Separator = require('../objects/separator');
-var observe = require('../utils/events');
-var Paginator = require('../utils/paginator');
-
-class ExpandPrompt extends Base {
- constructor(questions, rl, answers) {
- super(questions, rl, answers);
-
- if (!this.opt.choices) {
- this.throwParamError('choices');
- }
-
- this.validateChoices(this.opt.choices);
-
- // Add the default `help` (/expand) option
- this.opt.choices.push({
- key: 'h',
- name: 'Help, list all options',
- value: 'help',
- });
-
- this.opt.validate = (choice) => {
- if (choice == null) {
- return 'Please enter a valid command';
- }
-
- return choice !== 'help';
- };
-
- // Setup the default string (capitalize the default key)
- this.opt.default = this.generateChoicesString(this.opt.choices, this.opt.default);
-
- this.paginator = new Paginator(this.screen);
- }
-
- /**
- * Start the Inquiry session
- * @param {Function} cb Callback when prompt is done
- * @return {this}
- */
-
- _run(cb) {
- this.done = cb;
-
- // Save user answer and update prompt to show selected option.
- var events = observe(this.rl);
- var validation = this.handleSubmitEvents(
- events.line.pipe(map(this.getCurrentValue.bind(this)))
- );
- validation.success.forEach(this.onSubmit.bind(this));
- validation.error.forEach(this.onError.bind(this));
- this.keypressObs = events.keypress
- .pipe(takeUntil(validation.success))
- .forEach(this.onKeypress.bind(this));
-
- // Init the prompt
- this.render();
-
- return this;
- }
-
- /**
- * Render the prompt to screen
- * @return {ExpandPrompt} self
- */
-
- render(error, hint) {
- var message = this.getQuestion();
- var bottomContent = '';
-
- if (this.status === 'answered') {
- message += chalk.cyan(this.answer);
- } else if (this.status === 'expanded') {
- var choicesStr = renderChoices(this.opt.choices, this.selectedKey);
- message += this.paginator.paginate(choicesStr, this.selectedKey, this.opt.pageSize);
- message += '\n Answer: ';
- }
-
- message += this.rl.line;
-
- if (error) {
- bottomContent = chalk.red('>> ') + error;
- }
-
- if (hint) {
- bottomContent = chalk.cyan('>> ') + hint;
- }
-
- this.screen.render(message, bottomContent);
- }
-
- getCurrentValue(input) {
- if (!input) {
- input = this.rawDefault;
- }
-
- var selected = this.opt.choices.where({ key: input.toLowerCase().trim() })[0];
- if (!selected) {
- return null;
- }
-
- return selected.value;
- }
-
- /**
- * Generate the prompt choices string
- * @return {String} Choices string
- */
-
- getChoices() {
- var output = '';
-
- this.opt.choices.forEach((choice) => {
- output += '\n ';
-
- if (choice.type === 'separator') {
- output += ' ' + choice;
- return;
- }
-
- var choiceStr = choice.key + ') ' + choice.name;
- if (this.selectedKey === choice.key) {
- choiceStr = chalk.cyan(choiceStr);
- }
-
- output += choiceStr;
- });
-
- return output;
- }
-
- onError(state) {
- if (state.value === 'help') {
- this.selectedKey = '';
- this.status = 'expanded';
- this.render();
- return;
- }
-
- this.render(state.isValid);
- }
-
- /**
- * When user press `enter` key
- */
-
- onSubmit(state) {
- this.status = 'answered';
- var choice = this.opt.choices.where({ value: state.value })[0];
- this.answer = choice.short || choice.name;
-
- // Re-render prompt
- this.render();
- this.screen.done();
- this.done(state.value);
- }
-
- /**
- * When user press a key
- */
-
- onKeypress() {
- this.selectedKey = this.rl.line.toLowerCase();
- var selected = this.opt.choices.where({ key: this.selectedKey })[0];
- if (this.status === 'expanded') {
- this.render();
- } else {
- this.render(null, selected ? selected.name : null);
- }
- }
-
- /**
- * Validate the choices
- * @param {Array} choices
- */
-
- validateChoices(choices) {
- var formatError;
- var errors = [];
- var keymap = {};
- choices.filter(Separator.exclude).forEach((choice) => {
- if (!choice.key || choice.key.length !== 1) {
- formatError = true;
- }
-
- if (keymap[choice.key]) {
- errors.push(choice.key);
- }
-
- keymap[choice.key] = true;
- choice.key = String(choice.key).toLowerCase();
- });
-
- if (formatError) {
- throw new Error(
- 'Format error: `key` param must be a single letter and is required.'
- );
- }
-
- if (keymap.h) {
- throw new Error(
- 'Reserved key error: `key` param cannot be `h` - this value is reserved.'
- );
- }
-
- if (errors.length) {
- throw new Error(
- 'Duplicate key error: `key` param must be unique. Duplicates: ' +
- _.uniq(errors).join(', ')
- );
- }
- }
-
- /**
- * Generate a string out of the choices keys
- * @param {Array} choices
- * @param {Number|String} default - the choice index or name to capitalize
- * @return {String} The rendered choices key string
- */
- generateChoicesString(choices, defaultChoice) {
- var defIndex = choices.realLength - 1;
- if (_.isNumber(defaultChoice) && this.opt.choices.getChoice(defaultChoice)) {
- defIndex = defaultChoice;
- } else if (_.isString(defaultChoice)) {
- let index = _.findIndex(
- choices.realChoices,
- ({ value }) => value === defaultChoice
- );
- defIndex = index === -1 ? defIndex : index;
- }
-
- var defStr = this.opt.choices.pluck('key');
- this.rawDefault = defStr[defIndex];
- defStr[defIndex] = String(defStr[defIndex]).toUpperCase();
- return defStr.join('');
- }
-}
-
-/**
- * Function for rendering checkbox choices
- * @param {String} pointer Selected key
- * @return {String} Rendered content
- */
-
-function renderChoices(choices, pointer) {
- var output = '';
-
- choices.forEach((choice) => {
- output += '\n ';
-
- if (choice.type === 'separator') {
- output += ' ' + choice;
- return;
- }
-
- var choiceStr = choice.key + ') ' + choice.name;
- if (pointer === choice.key) {
- choiceStr = chalk.cyan(choiceStr);
- }
-
- output += choiceStr;
- });
-
- return output;
-}
-
-module.exports = ExpandPrompt;
projects / dotfiles / .git / blobdiff