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path: root/node_modules/utila/scripts/js/lib/Emitter.js
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var Emitter, array;

array = require('./array');

module.exports = Emitter = (function() {
  function Emitter() {
    this._listeners = {};
    this._listenersForAnyEvent = [];
    this._disabledEmitters = {};
  }

  Emitter.prototype.on = function(eventName, listener) {
    if (this._listeners[eventName] == null) {
      this._listeners[eventName] = [];
    }
    this._listeners[eventName].push(listener);
    return this;
  };

  Emitter.prototype.once = function(eventName, listener) {
    var cb, ran;
    ran = false;
    cb = (function(_this) {
      return function() {
        if (ran) {
          return;
        }
        ran = true;
        listener();
        return setTimeout(function() {
          return _this.removeEvent(eventName, cb);
        }, 0);
      };
    })(this);
    this.on(eventName, cb);
    return this;
  };

  Emitter.prototype.onAnyEvent = function(listener) {
    this._listenersForAnyEvent.push(listener);
    return this;
  };

  Emitter.prototype.removeEvent = function(eventName, listener) {
    if (this._listeners[eventName] == null) {
      return this;
    }
    array.pluckOneItem(this._listeners[eventName], listener);
    return this;
  };

  Emitter.prototype.removeListeners = function(eventName) {
    if (this._listeners[eventName] == null) {
      return this;
    }
    this._listeners[eventName].length = 0;
    return this;
  };

  Emitter.prototype.removeAllListeners = function() {
    var listeners, name, _ref;
    _ref = this._listeners;
    for (name in _ref) {
      listeners = _ref[name];
      listeners.length = 0;
    }
    return this;
  };

  Emitter.prototype._emit = function(eventName, data) {
    var listener, _i, _j, _len, _len1, _ref, _ref1;
    _ref = this._listenersForAnyEvent;
    for (_i = 0, _len = _ref.length; _i < _len; _i++) {
      listener = _ref[_i];
      listener.call(this, data, eventName);
    }
    if (this._listeners[eventName] == null) {
      return;
    }
    _ref1 = this._listeners[eventName];
    for (_j = 0, _len1 = _ref1.length; _j < _len1; _j++) {
      listener = _ref1[_j];
      listener.call(this, data);
    }
  };

  Emitter.prototype._throttleEmitterMethod = function(fnName, time) {
    var lastCallArgs, originalFn, pend, pending, runIt, timer;
    if (time == null) {
      time = 1000;
    }
    originalFn = this[fnName];
    if (typeof originalFn !== 'function') {
      throw Error("this class does not have a method called '" + fnName + "'");
    }
    lastCallArgs = null;
    pending = false;
    timer = null;
    this[fnName] = (function(_this) {
      return function() {
        lastCallArgs = arguments;
        return pend();
      };
    })(this);
    pend = (function(_this) {
      return function() {
        if (pending) {
          clearTimeout(timer);
        }
        timer = setTimeout(runIt, time);
        return pending = true;
      };
    })(this);
    return runIt = (function(_this) {
      return function() {
        pending = false;
        return originalFn.apply(_this, lastCallArgs);
      };
    })(this);
  };

  Emitter.prototype._disableEmitter = function(fnName) {
    if (this._disabledEmitters[fnName] != null) {
      throw Error("" + fnName + " is already a disabled emitter");
    }
    this._disabledEmitters[fnName] = this[fnName];
    return this[fnName] = function() {};
  };

  Emitter.prototype._enableEmitter = function(fnName) {
    var fn;
    fn = this._disabledEmitters[fnName];
    if (fn == null) {
      throw Error("" + fnName + " is not a disabled emitter");
    }
    this[fnName] = fn;
    return delete this._disabledEmitters[fnName];
  };

  return Emitter;

})();

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Properties will be shallow copies.\n\t###\n\tsimpleClone: (a) ->\n\n\t\ta.slice 0\n\n\tshallowEqual: (a1, a2) ->\n\n\t\treturn no unless Array.isArray(a1) and Array.isArray(a2) and a1.length is a2.length\n\n\t\tfor val, i in a1\n\n\t\t\treturn no unless a2[i] is val\n\n\t\tyes\n\n\tpluck: (a, i) ->\n\n\t\treturn a if a.length < 1\n\n\n\t\tfor value, index in a\n\n\t\t\tif index > i\n\n\t\t\t\ta[index - 1] = a[index]\n\n\t\ta.length = a.length - 1\n\n\t\ta\n\n\tpluckItem: (a, item) ->\n\n\t\treturn a if a.length < 1\n\n\n\t\tremoved = 0\n\n\t\tfor value, index in a\n\n\t\t\tif value is item\n\n\t\t\t\tremoved++\n\n\t\t\t\tcontinue\n\n\t\t\tif removed isnt 0\n\n\t\t\t\ta[index - removed] = a[index]\n\n\t\ta.length = a.length - removed if removed > 0\n\n\t\ta\n\n\tpluckOneItem: (a, item) ->\n\n\t\treturn a if a.length < 1\n\n\t\treached = no\n\n\t\tfor value, index in a\n\n\t\t\tif not reached\n\n\t\t\t\tif value is item\n\n\t\t\t\t\treached = yes\n\n\t\t\t\t\tcontinue\n\n\t\t\telse\n\n\t\t\t\ta[index - 1] = a[index]\n\n\t\ta.length = a.length - 1 if reached\n\n\t\ta\n\n\tpluckByCallback: (a, cb) ->\n\n\t\treturn a if a.length < 1\n\n\t\tremoved = 0\n\n\t\tfor value, index in a\n\n\t\t\tif cb value, index\n\n\t\t\t\tremoved++\n\n\t\t\t\tcontinue\n\n\t\t\tif removed isnt 0\n\n\t\t\t\ta[index - removed] = a[index]\n\n\t\tif removed > 0\n\n\t\t\ta.length = a.length - removed\n\n\t\ta\n\n\tpluckMultiple: (array, indexesToRemove) ->\n\n\t\treturn array if array.length < 1\n\n\t\tremovedSoFar = 0\n\n\t\tindexesToRemove.sort()\n\n\t\tfor i in indexesToRemove\n\n\t\t\t@pluck array, i - removedSoFar\n\n\t\t\tremovedSoFar++\n\n\t\tarray\n\n\tinjectByCallback: (a, toInject, shouldInject) ->\n\n\t\tvalA = null\n\n\t\tvalB = null\n\n\t\tlen = a.length\n\n\t\tif len < 1\n\n\t\t\ta.push toInject\n\n\t\t\treturn a\n\n\n\t\tfor val, i in a\n\n\t\t\tvalA = valB\n\n\t\t\tvalB = val\n\n\t\t\tif shouldInject valA, valB, toInject\n\n\t\t\t\treturn a.splice i, 0, toInject\n\n\t\ta.push toInject\n\n\t\ta\n\n\tinjectInIndex: (a, index, toInject) ->\n\n\t\tlen = a.length\n\n\t\ti = index\n\n\t\tif len < 1\n\n\t\t\ta.push toInject\n\n\t\t\treturn a\n\n\t\ttoPut = toInject\n\n\t\ttoPutNext = null\n\n\t\t`for(; i <= len; i++){\n\n\t\t\ttoPutNext = a[i];\n\n\t\t\ta[i] = toPut;\n\n\t\t\ttoPut = toPutNext;\n\n\t\t}`\n\n\t\t# a[i] = toPut\n\n\t\tnull","module.exports = classic = {}\n\n# Little helper for mixins from CoffeeScript FAQ,\n# courtesy of Sethaurus (http://github.com/sethaurus)\nclassic.implement = (mixins..., classReference) ->\n\n\tfor mixin in mixins\n\n\t\tclassProto = classReference::\n\n\t\tfor member of mixin::\n\n\t\t\tunless Object.getOwnPropertyDescriptor classProto, member\n\n\t\t\t\tdesc = Object.getOwnPropertyDescriptor mixin::, member\n\n\t\t\t\tObject.defineProperty classProto, member, desc\n\n\tclassReference\n\nclassic.mix = (mixins..., classReference) ->\n\n\tclassProto = classReference::\n\n\tclassReference.__mixinCloners = []\n\n\tclassReference.__applyClonersFor = (instance, args = null) ->\n\n\t\tfor cloner in classReference.__mixinCloners\n\n\t\t\tcloner.apply instance, args\n\n\t\treturn\n\n\tclassReference.__mixinInitializers = []\n\n\tclassReference.__initMixinsFor = (instance, args = null) ->\n\n\t\tfor initializer in classReference.__mixinInitializers\n\n\t\t\tinitializer.apply instance, args\n\n\t\treturn\n\n\tclassReference.__mixinQuitters = []\n\n\tclassReference.__applyQuittersFor = (instance, args = null) ->\n\n\t\tfor quitter in classReference.__mixinQuitters\n\n\t\t\tquitter.apply instance, args\n\n\t\treturn\n\n\tfor mixin in mixins\n\n\t\tunless mixin.constructor instanceof Function\n\n\t\t\tthrow Error \"Mixin should be a function\"\n\n\t\tfor member of mixin::\n\n\t\t\tif member.substr(0, 11) is '__initMixin'\n\n\t\t\t\tclassReference.__mixinInitializers.push mixin::[member]\n\n\t\t\t\tcontinue\n\n\t\t\telse if member.substr(0, 11) is '__clonerFor'\n\n\t\t\t\tclassReference.__mixinCloners.push mixin::[member]\n\n\t\t\t\tcontinue\n\n\t\t\telse if member.substr(0, 12) is '__quitterFor'\n\n\t\t\t\tclassReference.__mixinQuitters.push mixin::[member]\n\n\t\t\t\tcontinue\n\n\t\t\tunless Object.getOwnPropertyDescriptor classProto, member\n\n\t\t\t\tdesc = Object.getOwnPropertyDescriptor mixin::, member\n\n\t\t\t\tObject.defineProperty classProto, member, desc\n\n\tclassReference","array = require './array'\r\n\r\nmodule.exports = class Emitter\r\n\r\n\tconstructor: ->\r\n\r\n\t\t@_listeners = {}\r\n\r\n\t\t@_listenersForAnyEvent = []\r\n\r\n\t\t@_disabledEmitters = {}\r\n\r\n\ton: (eventName, listener) ->\r\n\r\n\t\tunless @_listeners[eventName]?\r\n\r\n\t\t\t@_listeners[eventName] = []\r\n\r\n\t\t@_listeners[eventName].push listener\r\n\r\n\t\t@\r\n\r\n\tonce: (eventName, listener) ->\r\n\r\n\t\tran = no\r\n\r\n\t\tcb = =>\r\n\r\n\t\t\treturn if ran\r\n\r\n\t\t\tran = yes\r\n\r\n\t\t\tdo listener\r\n\r\n\t\t\tsetTimeout =>\r\n\r\n\t\t\t\t@removeEvent eventName, cb\r\n\r\n\t\t\t, 0\r\n\r\n\t\t@on eventName, cb\r\n\r\n\t\t@\r\n\r\n\tonAnyEvent: (listener) ->\r\n\r\n\t\t@_listenersForAnyEvent.push listener\r\n\r\n\t\t@\r\n\r\n\tremoveEvent: (eventName, listener) ->\r\n\r\n\t\treturn @ unless @_listeners[eventName]?\r\n\r\n\t\tarray.pluckOneItem @_listeners[eventName], listener\r\n\r\n\t\t@\r\n\r\n\tremoveListeners: (eventName) ->\r\n\r\n\t\treturn @ unless @_listeners[eventName]?\r\n\r\n\t\t@_listeners[eventName].length = 0\r\n\r\n\t\t@\r\n\r\n\tremoveAllListeners: ->\r\n\r\n\t\tfor name, listeners of @_listeners\r\n\r\n\t\t\tlisteners.length = 0\r\n\r\n\t\t@\r\n\r\n\t_emit: (eventName, data) ->\r\n\r\n\t\tfor listener in @_listenersForAnyEvent\r\n\r\n\t\t\tlistener.call @, data, eventName\r\n\r\n\t\treturn unless @_listeners[eventName]?\r\n\r\n\t\tfor listener in @_listeners[eventName]\r\n\r\n\t\t\tlistener.call @, data\r\n\r\n\t\treturn\r\n\r\n\t# this makes sure that all the calls to this class's method 'fnName'\r\n\t# are throttled\r\n\t_throttleEmitterMethod: (fnName, time = 1000) ->\r\n\r\n\t\toriginalFn = @[fnName]\r\n\r\n\t\tif typeof originalFn isnt 'function'\r\n\r\n\t\t\tthrow Error \"this class does not have a method called '#{fnName}'\"\r\n\r\n\t\tlastCallArgs = null\r\n\t\tpending = no\r\n\t\ttimer = null\r\n\r\n\t\t@[fnName] = =>\r\n\r\n\t\t\tlastCallArgs = arguments\r\n\r\n\t\t\tdo pend\r\n\r\n\t\tpend = =>\r\n\r\n\t\t\tif pending\r\n\r\n\t\t\t\tclearTimeout timer\r\n\r\n\t\t\ttimer = setTimeout runIt, time\r\n\r\n\t\t\tpending = yes\r\n\r\n\t\trunIt = =>\r\n\r\n\t\t\tpending = no\r\n\r\n\t\t\toriginalFn.apply @, lastCallArgs\r\n\r\n\t_disableEmitter: (fnName) ->\r\n\r\n\t\tif @_disabledEmitters[fnName]?\r\n\r\n\t\t\tthrow Error \"#{fnName} is already a disabled emitter\"\r\n\r\n\t\t@_disabledEmitters[fnName] = @[fnName]\r\n\r\n\t\t@[fnName] = ->\r\n\r\n\t_enableEmitter: (fnName) ->\r\n\r\n\t\tfn = @_disabledEmitters[fnName]\r\n\r\n\t\tunless fn?\r\n\r\n\t\t\tthrow Error \"#{fnName} is not a disabled emitter\"\r\n\r\n\t\t@[fnName] = fn\r\n\r\n\t\tdelete @_disabledEmitters[fnName]"]}