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/**
* loading.js - loading element for blessed
* Copyright (c) 2013-2015, Christopher Jeffrey and contributors (MIT License).
* https://github.com/chjj/blessed
*/
/**
* Modules
*/
var Node = require('./node');
var Box = require('./box');
var Text = require('./text');
/**
* Loading
*/
function Loading(options) {
if (!(this instanceof Node)) {
return new Loading(options);
}
options = options || {};
Box.call(this, options);
this._.icon = new Text({
parent: this,
align: 'center',
top: 2,
left: 1,
right: 1,
height: 1,
content: '|'
});
}
Loading.prototype.__proto__ = Box.prototype;
Loading.prototype.type = 'loading';
Loading.prototype.load = function(text) {
var self = this;
// XXX Keep above:
// var parent = this.parent;
// this.detach();
// parent.append(this);
this.show();
this.setContent(text);
if (this._.timer) {
this.stop();
}
this.screen.lockKeys = true;
this._.timer = setInterval(function() {
if (self._.icon.content === '|') {
self._.icon.setContent('/');
} else if (self._.icon.content === '/') {
self._.icon.setContent('-');
} else if (self._.icon.content === '-') {
self._.icon.setContent('\\');
} else if (self._.icon.content === '\\') {
self._.icon.setContent('|');
}
self.screen.render();
}, 200);
};
Loading.prototype.stop = function() {
this.screen.lockKeys = false;
this.hide();
if (this._.timer) {
clearInterval(this._.timer);
delete this._.timer;
}
this.screen.render();
};
/**
* Expose
*/
module.exports = Loading;