DEPRECATED; see https://github.com/livereload/livereload-js/blob/master/dist/livereload.js for an up-to-date version

livereload.js

// DEPRECATED
// see https://github.com/livereload/livereload-js/blob/master/dist/livereload.js for an up-to-date version

(function() {
var __protocol = {}, __connector = {}, __timer = {}, __options = {}, __reloader = {}, __livereload = {}, __startup = {};

// protocol
(function() {
  var PROTOCOL_6, PROTOCOL_7, Parser, ProtocolError;
  var __indexOf = Array.prototype.indexOf || function(item) {
    for (var i = 0, l = this.length; i < l; i++) {
      if (this[i] === item) return i;
    }
    return -1;
  };
  __protocol.PROTOCOL_6 = PROTOCOL_6 = 'http://livereload.com/protocols/official/6';
  __protocol.PROTOCOL_7 = PROTOCOL_7 = 'http://livereload.com/protocols/official/7';
  __protocol.ProtocolError = ProtocolError = (function() {
    function ProtocolError(reason, data) {
      this.message = "LiveReload protocol error (" + reason + ") after receiving data: \"" + data + "\".";
    }
    return ProtocolError;
  })();
  __protocol.Parser = Parser = (function() {
    function Parser(handlers) {
      this.handlers = handlers;
      this.reset();
    }
    Parser.prototype.reset = function() {
      return this.protocol = null;
    };
    Parser.prototype.process = function(data) {
      var command, message, options, _ref;
      try {
        if (!(this.protocol != null)) {
          if (data.match(/^!!ver:([\d.]+)$/)) {
            this.protocol = 6;
          } else if (message = this._parseMessage(data, ['hello'])) {
            if (!message.protocols.length) {
              throw new ProtocolError("no protocols specified in handshake message");
            } else if (__indexOf.call(message.protocols, PROTOCOL_7) >= 0) {
              this.protocol = 7;
            } else if (__indexOf.call(message.protocols, PROTOCOL_6) >= 0) {
              this.protocol = 6;
            } else {
              throw new ProtocolError("no supported protocols found");
            }
          }
          return this.handlers.connected(this.protocol);
        } else if (this.protocol === 6) {
          message = JSON.parse(data);
          if (!message.length) {
            throw new ProtocolError("protocol 6 messages must be arrays");
          }
          command = message[0], options = message[1];
          if (command !== 'refresh') {
            throw new ProtocolError("unknown protocol 6 command");
          }
          return this.handlers.message({
            command: 'reload',
            path: options.path,
            liveCSS: (_ref = options.apply_css_live) != null ? _ref : true
          });
        } else {
          message = this._parseMessage(data, ['reload', 'alert']);
          return this.handlers.message(message);
        }
      } catch (e) {
        if (e instanceof ProtocolError) {
          return this.handlers.error(e);
        } else {
          throw e;
        }
      }
    };
    Parser.prototype._parseMessage = function(data, validCommands) {
      var message, _ref;
      try {
        message = JSON.parse(data);
      } catch (e) {
        throw new ProtocolError('unparsable JSON', data);
      }
      if (!message.command) {
        throw new ProtocolError('missing "command" key', data);
      }
      if (_ref = message.command, __indexOf.call(validCommands, _ref) < 0) {
        throw new ProtocolError("invalid command '" + message.command + "', only valid commands are: " + (validCommands.join(', ')) + ")", data);
      }
      return message;
    };
    return Parser;
  })();
}).call(this);

// connector
(function() {
  var Connector, PROTOCOL_6, PROTOCOL_7, Parser, _ref;
  var __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };
  _ref = __protocol, Parser = _ref.Parser, PROTOCOL_6 = _ref.PROTOCOL_6, PROTOCOL_7 = _ref.PROTOCOL_7;
  __connector.Connector = Connector = (function() {
    function Connector(options, WebSocket, Timer, handlers) {
      this.options = options;
      this.WebSocket = WebSocket;
      this.Timer = Timer;
      this.handlers = handlers;
      this._uri = "ws://" + this.options.host + ":" + this.options.port + "/livereload";
      this._nextDelay = this.options.mindelay;
      this.protocolParser = new Parser({
        connected: __bind(function(protocol) {
          this._handshakeTimeout.stop();
          this._nextDelay = this.options.mindelay;
          this._disconnectionReason = 'broken';
          return this.handlers.connected(protocol);
        }, this),
        error: __bind(function(e) {
          this.handlers.error(e);
          return this._closeOnError();
        }, this),
        message: __bind(function(message) {
          return this.handlers.message(message);
        }, this)
      });
      this._handshakeTimeout = new Timer(__bind(function() {
        if (!this._isSocketConnected()) {
          return;
        }
        this._disconnectionReason = 'handshake-timeout';
        return this.socket.close();
      }, this));
      this._reconnectTimer = new Timer(__bind(function() {
        return this.connect();
      }, this));
      this.connect();
    }
    Connector.prototype._isSocketConnected = function() {
      return this.socket && this.socket.readyState === this.WebSocket.OPEN;
    };
    Connector.prototype.connect = function() {
      if (this._isSocketConnected()) {
        return;
      }
      if (this._reconnectTimer) {
        clearTimeout(this._reconnectTimer);
      }
      this._disconnectionReason = 'cannot-connect';
      this.protocolParser.reset();
      this.handlers.connecting();
      this.socket = new this.WebSocket(this._uri);
      this.socket.onopen = __bind(function(e) {
        return this._onopen(e);
      }, this);
      this.socket.onclose = __bind(function(e) {
        return this._onclose(e);
      }, this);
      this.socket.onmessage = __bind(function(e) {
        return this._onmessage(e);
      }, this);
      return this.socket.onerror = __bind(function(e) {
        return this._onerror(e);
      }, this);
    };
    Connector.prototype._scheduleReconnection = function() {
      if (!this._reconnectTimer.running) {
        this._reconnectTimer.start(this._nextDelay);
        return this._nextDelay = Math.min(this.options.maxdelay, this._nextDelay * 2);
      }
    };
    Connector.prototype.sendCommand = function(command) {
      if (this.protocol == null) {
        return;
      }
      return this._sendCommand(command);
    };
    Connector.prototype._sendCommand = function(command) {
      return this.socket.send(JSON.stringify(command));
    };
    Connector.prototype._closeOnError = function() {
      this._handshakeTimeout.stop();
      this._disconnectionReason = 'error';
      return this.socket.close();
    };
    Connector.prototype._onopen = function(e) {
      this.handlers.socketConnected();
      this._disconnectionReason = 'handshake-failed';
      this._sendCommand({
        command: 'hello',
        protocols: [PROTOCOL_6, PROTOCOL_7]
      });
      return this._handshakeTimeout.start(this.options.handshake_timeout);
    };
    Connector.prototype._onclose = function(e) {
      this.handlers.disconnected(this._disconnectionReason, this._nextDelay);
      if (this._disconnectionReason !== 'manual') {
        return this._scheduleReconnection();
      }
    };
    Connector.prototype._onerror = function(e) {};
    Connector.prototype._onmessage = function(e) {
      return this.protocolParser.process(e.data);
    };
    return Connector;
  })();
}).call(this);

// timer
(function() {
  var Timer;
  var __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };
  __timer.Timer = Timer = (function() {
    function Timer(func) {
      this.func = func;
      this.running = false;
      this.id = null;
      this._handler = __bind(function() {
        this.running = false;
        this.id = null;
        return this.func();
      }, this);
    }
    Timer.prototype.start = function(timeout) {
      if (this.running) {
        clearTimeout(this.id);
      }
      this.id = setTimeout(this._handler, timeout);
      return this.running = true;
    };
    Timer.prototype.stop = function() {
      if (this.running) {
        clearTimeout(this.id);
        this.running = false;
        return this.id = null;
      }
    };
    return Timer;
  })();
}).call(this);

// options
(function() {
  var Options;
  __options.Options = Options = (function() {
    function Options() {
      this.host = null;
      this.port = null;
      this.snipver = null;
      this.ext = null;
      this.extver = null;
      this.mindelay = 1000;
      this.maxdelay = 60000;
      this.handshake_timeout = 5000;
    }
    Options.prototype.set = function(name, value) {
      switch (typeof this[name]) {
        case 'undefined':
          break;
        case 'number':
          return this[name] = +value;
        default:
          return this[name] = value;
      }
    };
    return Options;
  })();
  Options.extract = function(document) {
    var element, keyAndValue, m, options, pair, src, _i, _j, _len, _len2, _ref, _ref2;
    _ref = document.getElementsByTagName('script');
    for (_i = 0, _len = _ref.length; _i < _len; _i++) {
      element = _ref[_i];
      if ((src = element.src) && (m = src.match(/^https?:\/\/([^\/:]+):(\d+)\/z?livereload\.js(?:\?(.*))?$/))) {
        options = new Options();
        options.host = m[1];
        options.port = parseInt(m[2], 10);
        if (m[3]) {
          _ref2 = m[3].split('&');
          for (_j = 0, _len2 = _ref2.length; _j < _len2; _j++) {
            pair = _ref2[_j];
            if ((keyAndValue = pair.split('=')).length > 1) {
              options.set(keyAndValue[0].replace(/-/g, '_'), keyAndValue.slice(1).join('='));
            }
          }
        }
        return options;
      }
    }
    return null;
  };
}).call(this);

// reloader
(function() {
  var Reloader, numberOfMatchingSegments, pathFromUrl, pickBestMatch, splitUrl;
  splitUrl = function(url) {
    var hash, index, params;
    if ((index = url.indexOf('#')) >= 0) {
      hash = url.slice(index);
      url = url.slice(0, index);
    } else {
      hash = '';
    }
    if ((index = url.indexOf('?')) >= 0) {
      params = url.slice(index);
      url = url.slice(0, index);
    } else {
      params = '';
    }
    return {
      url: url,
      params: params,
      hash: hash
    };
  };
  pathFromUrl = function(url) {
    var path;
    url = splitUrl(url).url;
    if (url.indexOf('file://') === 0) {
      path = url.replace(/^file:\/\/(localhost)?/, '');
    } else {
      path = url.replace(/^([^:]+:)?\/\/([^:\/]+)(:\d*)?\//, '/');
    }
    return decodeURIComponent(path);
  };
  pickBestMatch = function(path, objects, pathFunc) {
    var bestMatch, object, score, _i, _len;
    bestMatch = {
      score: 0
    };
    for (_i = 0, _len = objects.length; _i < _len; _i++) {
      object = objects[_i];
      score = numberOfMatchingSegments(path, pathFunc(object));
      if (score > bestMatch.score) {
        bestMatch = {
          object: object,
          score: score
        };
      }
    }
    if (bestMatch.score > 0) {
      return bestMatch;
    } else {
      return null;
    }
  };
  numberOfMatchingSegments = function(path1, path2) {
    var comps1, comps2, eqCount, len;
    path1 = path1.replace(/^\/+/, '').toLowerCase();
    path2 = path2.replace(/^\/+/, '').toLowerCase();
    if (path1 === path2) {
      return 10000;
    }
    comps1 = path1.split('/').reverse();
    comps2 = path2.split('/').reverse();
    len = Math.min(comps1.length, comps2.length);
    eqCount = 0;
    while (eqCount < len && comps1[eqCount] === comps2[eqCount]) {
      ++eqCount;
    }
    console.log("numberOfMatchingSegments('" + path1 + "', '" + path2 + "') == " + eqCount);
    return eqCount;
  };
  __reloader.Reloader = Reloader = (function() {
    function Reloader(window, console, Timer) {
      this.window = window;
      this.console = console;
      this.Timer = Timer;
      this.document = this.window.document;
      this.stylesheetGracePeriod = 200;
    }
    Reloader.prototype.reload = function(path, liveCSS) {
      if (liveCSS) {
        if (path.match(/\.css$/i)) {
          if (this.reloadStylesheet(path)) {
            return;
          }
        }
      }
      return this.reloadPage();
    };
    Reloader.prototype.reloadPage = function() {
      return this.window.document.location.reload();
    };
    Reloader.prototype.reloadStylesheet = function(path) {
      var link, links, match, _i, _len;
      links = (function() {
        var _i, _len, _ref, _results;
        _ref = this.document.getElementsByTagName('link');
        _results = [];
        for (_i = 0, _len = _ref.length; _i < _len; _i++) {
          link = _ref[_i];
          if (link.rel === 'stylesheet') {
            _results.push(link);
          }
        }
        return _results;
      }).call(this);
      console.log("Found " + links.length + " stylesheets");
      match = pickBestMatch(path, links, function(l) {
        return pathFromUrl(l.href);
      });
      if (match) {
        this.console.log("LiveReload is reloading stylesheet: " + match.object.href);
        this.reattachStylesheetLink(match.object);
      } else {
        this.console.log("LiveReload will reload all stylesheets because path '" + path + "' did not match any specific one");
        for (_i = 0, _len = links.length; _i < _len; _i++) {
          link = links[_i];
          this.reattachStylesheetLink(link);
        }
      }
      return true;
    };
    Reloader.prototype.reattachStylesheetLink = function(link) {
      var clone, parent, timer;
      if (link.__LiveReload_pendingRemoval) {
        return;
      }
      link.__LiveReload_pendingRemoval = true;
      clone = link.cloneNode(false);
      clone.href = this.generateCacheBustUrl(link.href);
      parent = link.parentNode;
      if (parent.lastChild === link) {
        parent.appendChild(clone);
      } else {
        parent.insertBefore(clone, link.nextSibling);
      }
      timer = new this.Timer(function() {
        if (link.parentNode) {
          return link.parentNode.removeChild(link);
        }
      });
      return timer.start(this.stylesheetGracePeriod);
    };
    Reloader.prototype.generateUniqueString = function() {
      return 'livereload=' + Date.now();
    };
    Reloader.prototype.generateCacheBustUrl = function(url) {
      var expando, hash, oldParams, params, _ref;
      expando = this.generateUniqueString();
      _ref = splitUrl(url), url = _ref.url, hash = _ref.hash, oldParams = _ref.params;
      params = oldParams.replace(/(\?|&)livereload=(\d+)/, function(match, sep) {
        return "" + sep + expando;
      });
      if (params === oldParams) {
        if (oldParams.length === 0) {
          params = "?" + expando;
        } else {
          params = "" + oldParams + "&" + expando;
        }
      }
      return url + params + hash;
    };
    return Reloader;
  })();
}).call(this);

// livereload
(function() {
  var Connector, LiveReload, Options, Reloader, Timer;
  var __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };
  Connector = __connector.Connector;
  Timer = __timer.Timer;
  Options = __options.Options;
  Reloader = __reloader.Reloader;
  __livereload.LiveReload = LiveReload = (function() {
    function LiveReload(window) {
      this.window = window;
      this.console = this.window.console && this.window.console.log && this.window.console.error ? this.window.console : {
        log: function() {},
        error: function() {}
      };
      if (!(this.WebSocket = this.window.WebSocket || this.window.MozWebSocket)) {
        console.error("LiveReload disabled because the browser does not seem to support web sockets");
        return;
      }
      if (!(this.options = Options.extract(this.window.document))) {
        console.error("LiveReload disabled because it could not find its own <SCRIPT> tag");
        return;
      }
      this.reloader = new Reloader(this.window, this.console, Timer);
      this.connector = new Connector(this.options, this.WebSocket, Timer, {
        connecting: __bind(function() {}, this),
        socketConnected: __bind(function() {}, this),
        connected: __bind(function(protocol) {
          return this.log("LiveReload is connected to " + this.options.host + ":" + this.options.port + " (protocol v" + protocol + ").");
        }, this),
        error: __bind(function(e) {
          if (e instanceof ProtocolError) {
            return console.log("" + e.message + ".");
          } else {
            return console.log("LiveReload internal error: " + e.message);
          }
        }, this),
        disconnected: __bind(function(reason, nextDelay) {
          switch (reason) {
            case 'cannot-connect':
              return this.log("LiveReload cannot connect to " + this.options.host + ":" + this.options.port + ", will retry in " + nextDelay + " sec.");
            case 'broken':
              return this.log("LiveReload disconnected from " + this.options.host + ":" + this.options.port + ", reconnecting in " + nextDelay + " sec.");
            case 'handshake-timeout':
              return this.log("LiveReload cannot connect to " + this.options.host + ":" + this.options.port + " (handshake timeout), will retry in " + nextDelay + " sec.");
            case 'handshake-failed':
              return this.log("LiveReload cannot connect to " + this.options.host + ":" + this.options.port + " (handshake failed), will retry in " + nextDelay + " sec.");
            case 'manual':
              break;
            case 'error':
              break;
            default:
              return this.log("LiveReload disconnected from " + this.options.host + ":" + this.options.port + " (" + reason + "), reconnecting in " + nextDelay + " sec.");
          }
        }, this),
        message: __bind(function(message) {
          switch (message.command) {
            case 'reload':
              return this.performReload(message);
            case 'alert':
              return this.performAlert(message);
          }
        }, this)
      });
    }
    LiveReload.prototype.log = function(message) {
      return this.console.log("" + message);
    };
    LiveReload.prototype.performReload = function(message) {
      var _ref;
      this.log("LiveReload received reload request for " + message.path + ".");
      return this.reloader.reload(message.path, (_ref = message.liveCSS) != null ? _ref : true);
    };
    LiveReload.prototype.performAlert = function(message) {
      return alert(message.message);
    };
    return LiveReload;
  })();
}).call(this);

// startup
(function() {
  window.LiveReload = new (__livereload.LiveReload)(window);
}).call(this);
})();