Current Dev State

static/js/ketcher2/node_modules/inquirer/lib/prompts/checkbox.js

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+/**
+ * `list` type prompt
+ */
+
+var _ = require("lodash");
+var util = require("util");
+var chalk = require("chalk");
+var cliCursor = require("cli-cursor");
+var figures = require("figures");
+var Base = require("./base");
+var observe = require("../utils/events");
+var Paginator = require("../utils/paginator");
+
+
+/**
+ * Module exports
+ */
+
+module.exports = Prompt;
+
+
+/**
+ * Constructor
+ */
+
+function Prompt() {
+  Base.apply( this, arguments );
+
+  if (!this.opt.choices) {
+    this.throwParamError("choices");
+  }
+
+  if ( _.isArray(this.opt.default) ) {
+    this.opt.choices.forEach(function( choice ) {
+      if ( this.opt.default.indexOf(choice.value) >= 0 ) {
+        choice.checked = true;
+      }
+    }, this);
+  }
+
+  this.firstRender = true;
+  this.pointer = 0;
+
+  // Make sure no default is set (so it won't be printed)
+  this.opt.default = null;
+
+  this.paginator = new Paginator();
+}
+util.inherits( Prompt, Base );
+
+
+/**
+ * Start the Inquiry session
+ * @param  {Function} cb      Callback when prompt is done
+ * @return {this}
+ */
+
+Prompt.prototype._run = function( cb ) {
+  this.done = cb;
+
+  var events = observe(this.rl);
+
+  var validation = this.handleSubmitEvents( events.line );
+  validation.success.forEach( this.onEnd.bind(this) );
+  validation.error.forEach( this.onError.bind(this) );
+
+  events.normalizedUpKey.takeUntil( validation.success ).forEach( this.onUpKey.bind(this) );
+  events.normalizedDownKey.takeUntil( validation.success ).forEach( this.onDownKey.bind(this) );
+  events.numberKey.takeUntil( validation.success ).forEach( this.onNumberKey.bind(this) );
+  events.spaceKey.takeUntil( validation.success ).forEach( this.onSpaceKey.bind(this) );
+
+  // Init the prompt
+  cliCursor.hide();
+  this.render();
+
+  return this;
+};
+
+
+/**
+ * Render the prompt to screen
+ * @return {Prompt} self
+ */
+
+Prompt.prototype.render = function (error) {
+  // Render question
+  var message = this.getQuestion();
+  var bottomContent = '';
+
+  if ( this.firstRender ) {
+    message += "(Press <space> to select)";
+  }
+
+  // Render choices or answer depending on the state
+  if ( this.status === "answered" ) {
+    message += chalk.cyan( this.selection.join(", ") );
+  } else {
+    var choicesStr = renderChoices(this.opt.choices, this.pointer);
+    var indexPosition = this.opt.choices.indexOf(this.opt.choices.getChoice(this.pointer));
+    message += "\n" + this.paginator.paginate(choicesStr, indexPosition, this.opt.pageSize);
+  }
+
+  if (error) {
+    bottomContent = chalk.red('>> ') + error;
+  }
+
+  this.firstRender = false;
+
+  this.screen.render(message, bottomContent);
+};
+
+
+/**
+ * When user press `enter` key
+ */
+
+Prompt.prototype.onEnd = function( state ) {
+
+  this.status = "answered";
+
+  // Rerender prompt (and clean subline error)
+  this.render();
+
+  this.screen.done();
+  cliCursor.show();
+  this.done( state.value );
+};
+
+Prompt.prototype.onError = function ( state ) {
+  this.render(state.isValid);
+};
+
+Prompt.prototype.getCurrentValue = function () {
+  var choices = this.opt.choices.filter(function( choice ) {
+    return !!choice.checked && !choice.disabled;
+  });
+
+  this.selection = _.map(choices, "short");
+  return _.map(choices, "value");
+};
+
+Prompt.prototype.onUpKey = function() {
+  var len = this.opt.choices.realLength;
+  this.pointer = (this.pointer > 0) ? this.pointer - 1 : len - 1;
+  this.render();
+};
+
+Prompt.prototype.onDownKey = function() {
+  var len = this.opt.choices.realLength;
+  this.pointer = (this.pointer < len - 1) ? this.pointer + 1 : 0;
+  this.render();
+};
+
+Prompt.prototype.onNumberKey = function( input ) {
+  if ( input <= this.opt.choices.realLength ) {
+    this.pointer = input - 1;
+    this.toggleChoice( this.pointer );
+  }
+  this.render();
+};
+
+Prompt.prototype.onSpaceKey = function( input ) {
+  this.toggleChoice(this.pointer);
+  this.render();
+};
+
+Prompt.prototype.toggleChoice = function( index ) {
+  var checked = this.opt.choices.getChoice(index).checked;
+  this.opt.choices.getChoice(index).checked = !checked;
+};
+
+/**
+ * Function for rendering checkbox choices
+ * @param  {Number} pointer Position of the pointer
+ * @return {String}         Rendered content
+ */
+
+function renderChoices(choices, pointer) {
+  var output = '';
+  var separatorOffset = 0;
+
+  choices.forEach(function (choice, i) {
+    if (choice.type === 'separator') {
+      separatorOffset++;
+      output += ' ' + choice + '\n';
+      return;
+    }
+
+    if (choice.disabled) {
+      separatorOffset++;
+      output += ' - ' + choice.name;
+      output += ' (' + (_.isString(choice.disabled) ? choice.disabled : 'Disabled') + ')';
+    } else {
+      var isSelected = (i - separatorOffset === pointer);
+      output += isSelected ? chalk.cyan(figures.pointer) : ' ';
+      output += getCheckbox(choice.checked) + ' ' + choice.name;
+    }
+
+    output += '\n';
+  });
+
+  return output.replace(/\n$/, '');
+}
+
+/**
+ * Get the checkbox
+ * @param  {Boolean} checked - add a X or not to the checkbox
+ * @return {String} Composited checkbox string
+ */
+
+function getCheckbox(checked) {
+  return checked ? chalk.green(figures.radioOn) : figures.radioOff;
+}