neo-blessed/lib/widgets/prompt.js

121 lines
2.1 KiB
JavaScript

/**
* prompt.js - prompt element for blessed
* Copyright (c) 2013-2015, Christopher Jeffrey and contributors (MIT License).
* https://github.com/chjj/blessed
*/
/**
* Modules
*/
var helpers = require('../helpers');
var Node = require('./node');
var Box = require('./box');
var Button = require('./button');
var Textbox = require('./textbox');
/**
* Prompt
*/
function Prompt(options) {
var self = this;
if (!(this instanceof Node)) {
return new Prompt(options);
}
options = options || {};
options.hidden = true;
Box.call(this, options);
this._.input = new Textbox({
parent: this,
top: 3,
height: 1,
left: 2,
right: 2,
bg: 'black'
});
this._.okay = new Button({
parent: this,
top: 5,
height: 1,
left: 2,
width: 6,
content: 'Okay',
align: 'center',
bg: 'black',
hoverBg: 'blue',
autoFocus: false,
mouse: true
});
this._.cancel = new Button({
parent: this,
top: 5,
height: 1,
shrink: true,
left: 10,
width: 8,
content: 'Cancel',
align: 'center',
bg: 'black',
hoverBg: 'blue',
autoFocus: false,
mouse: true
});
}
Prompt.prototype.__proto__ = Box.prototype;
Prompt.prototype.type = 'prompt';
Prompt.prototype.input =
Prompt.prototype.setInput =
Prompt.prototype.readInput = function(text, value, callback) {
var self = this;
var okay, cancel;
if (!callback) {
callback = value;
value = '';
}
// Keep above:
// var parent = this.parent;
// this.detach();
// parent.append(this);
this.show();
this.setContent(' ' + text);
this._.input.value = value;
this.screen.saveFocus();
this._.okay.on('press', okay = function() {
self._.input.submit();
});
this._.cancel.on('press', cancel = function() {
self._.input.cancel();
});
this._.input.readInput(function(err, data) {
self.hide();
self.screen.restoreFocus();
self._.okay.removeListener('press', okay);
self._.cancel.removeListener('press', cancel);
return callback(err, data);
});
this.screen.render();
};
module.exports = Prompt;