Sha256: 29fa265451dd3501fc102bc1ee049cf833a097b3d77c50f3734e82589597d602
Contents?: true
Size: 1.97 KB
Versions: 46
Compression:
Stored size: 1.97 KB
Contents
/**
* `input` type prompt
*/
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() {
return Base.apply( this, arguments );
}
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);
var submit = events.line.map( this.filterInput.bind(this) );
var validation = this.handleSubmitEvents( submit );
validation.success.forEach( this.onEnd.bind(this) );
validation.error.forEach( this.onError.bind(this) );
events.keypress.takeUntil( validation.success ).forEach( this.onKeypress.bind(this) );
// Init
this.render();
return this;
};
/**
* Render the prompt to screen
* @return {Prompt} self
*/
Prompt.prototype.render = function (error) {
var bottomContent = '';
var message = this.getQuestion();
if (this.status === 'answered') {
message += chalk.cyan(this.answer);
} else {
message += this.rl.line;
}
if (error) {
bottomContent = chalk.red('>> ') + error;
}
this.screen.render(message, bottomContent);
};
/**
* When user press `enter` key
*/
Prompt.prototype.filterInput = function( input ) {
if ( !input ) {
return this.opt.default != null ? this.opt.default : "";
}
return input;
};
Prompt.prototype.onEnd = function( state ) {
this.filter( state.value, function( filteredValue ) {
this.answer = filteredValue;
this.status = "answered";
// Re-render prompt
this.render();
this.screen.done();
this.done( state.value );
}.bind(this));
};
Prompt.prototype.onError = function( state ) {
this.render(state.isValid);
};
/**
* When user press a key
*/
Prompt.prototype.onKeypress = function() {
this.render();
};
Version data entries
46 entries across 46 versions & 3 rubygems