mirror of https://github.com/lukechilds/node.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
110 lines
1.9 KiB
110 lines
1.9 KiB
/**
|
|
* `confirm` type prompt
|
|
*/
|
|
|
|
var _ = require("lodash");
|
|
var util = require("util");
|
|
var chalk = require("chalk");
|
|
var Base = require("./base");
|
|
var observe = require("../utils/events");
|
|
|
|
|
|
/**
|
|
* Module exports
|
|
*/
|
|
|
|
module.exports = Prompt;
|
|
|
|
|
|
/**
|
|
* Constructor
|
|
*/
|
|
|
|
function Prompt() {
|
|
Base.apply( this, arguments );
|
|
|
|
var rawDefault = true;
|
|
|
|
_.extend( this.opt, {
|
|
filter: function( input ) {
|
|
var value = rawDefault;
|
|
if ( input != null && input !== "" ) {
|
|
value = /^y(es)?/i.test(input);
|
|
}
|
|
return value;
|
|
}.bind(this)
|
|
});
|
|
|
|
if ( _.isBoolean(this.opt.default) ) {
|
|
rawDefault = this.opt.default;
|
|
}
|
|
|
|
this.opt.default = rawDefault ? "Y/n" : "y/N";
|
|
|
|
return this;
|
|
}
|
|
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;
|
|
|
|
// Once user confirm (enter key)
|
|
var events = observe(this.rl);
|
|
events.keypress.takeUntil( events.line ).forEach( this.onKeypress.bind(this) );
|
|
|
|
events.line.take(1).forEach( this.onEnd.bind(this) );
|
|
|
|
// Init
|
|
this.render();
|
|
|
|
return this;
|
|
};
|
|
|
|
|
|
/**
|
|
* Render the prompt to screen
|
|
* @return {Prompt} self
|
|
*/
|
|
|
|
Prompt.prototype.render = function (answer) {
|
|
var message = this.getQuestion();
|
|
|
|
if (typeof answer === "boolean") {
|
|
message += chalk.cyan(answer ? "Yes" : "No");
|
|
} else {
|
|
message += this.rl.line;
|
|
}
|
|
|
|
this.screen.render(message);
|
|
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* When user press `enter` key
|
|
*/
|
|
|
|
Prompt.prototype.onEnd = function( input ) {
|
|
this.status = "answered";
|
|
|
|
var output = this.opt.filter( input );
|
|
this.render( output );
|
|
|
|
this.screen.done();
|
|
this.done( input ); // send "input" because the master class will refilter
|
|
};
|
|
|
|
/**
|
|
* When user press a key
|
|
*/
|
|
|
|
Prompt.prototype.onKeypress = function() {
|
|
this.render();
|
|
};
|
|
|