backoffice/node_modules/tiny-lr-fork/lib/client.js

82 lines
1.7 KiB
JavaScript

var util = require('util');
var events = require('events');
var WebSocket = require('faye-websocket');
module.exports = Client;
function Client(req, socket, head, options) {
options = this.options = options || {};
this.ws = new WebSocket(req, socket, head);
this.ws.onmessage = this.message.bind(this);
this.ws.onclose = this.close.bind(this);
this.id = this.uniqueId('ws');
}
util.inherits(Client, events.EventEmitter);
Client.prototype.message = function message(event) {
var data = this.data(event);
if(this[data.command]) return this[data.command](data);
};
Client.prototype.close = function close(event) {
if(this.ws) {
this.ws.close();
this.ws = null;
}
this.emit('end', event);
};
// Commands
Client.prototype.hello = function hello() {
this.send({
command: 'hello',
protocols: [
'http://livereload.com/protocols/official-7'
],
serverName: 'tiny-lr'
});
};
Client.prototype.info = function info(data) {
this.plugins = data.plugins;
this.url = data.url;
};
// Server commands
Client.prototype.reload = function reload(files) {
files.forEach(function(file) {
this.send({
command: 'reload',
path: file,
liveCss: this.options.liveCss !== false,
liveJs: this.options.liveJs !== false,
liveImg: this.options.liveImg !== false
});
}, this);
};
// Utilities
Client.prototype.data = function _data(event) {
var data = {};
try {
data = JSON.parse(event.data);
} catch (e) {}
return data;
};
Client.prototype.send = function send(data) {
this.ws.send(JSON.stringify(data));
};
var idCounter = 0;
Client.prototype.uniqueId = function uniqueId(prefix) {
var id = idCounter++;
return prefix ? prefix + id : id;
};