/**
 * util-events.js - The minimal events support
 */

var events = data.events = {}

// Bind event
seajs.on = function(name, callback) {
  var list = events[name] || (events[name] = [])
  list.push(callback)
  return seajs
}

// Remove event. If `callback` is undefined, remove all callbacks for the
// event. If `event` and `callback` are both undefined, remove all callbacks
// for all events
seajs.off = function(name, callback) {
  // Remove *all* events
  if (!(name || callback)) {
    data.events = events = {}
    return seajs
  }

  var list = events[name]
  if (list) {
    if (callback) {
      for (var i = list.length - 1; i >= 0; i--) {
        if (list[i] === callback) {
          list.splice(i, 1)
        }
      }
    }
    else {
      delete events[name]
    }
  }

  return seajs
}

// Emit event, firing all bound callbacks. Callbacks are passed the same
// arguments as `emit` is, apart from the event name
var emit = seajs.emit = function(name, data) {
  var list = events[name], fn

  if (list) {
    // Copy callback lists to prevent modification
    list = list.slice()

    // Execute event callbacks
    while ((fn = list.shift())) {
      fn(data)
    }
  }

  return seajs
}


/**
 * util-events.js - The minimal events support
 */

var events = data.events = {}

// Bind event
seajs.on = function(name, callback) {
  var list = events[name] || (events[name] = [])
  list.push(callback)
  return seajs
}

// Remove event. If `callback` is undefined, remove all callbacks for the
// event. If `event` and `callback` are both undefined, remove all callbacks
// for all events
seajs.off = function(name, callback) {
  // Remove *all* events
  if (!(name || callback)) {
    for (var prop in events) {
      delete events[prop]
    }
    return seajs
  }

  var list = events[name]
  if (list) {
    if (callback) {
      for (var i = list.length - 1; i >= 0; i--) {
        if (list[i] === callback) {
          list.splice(i, 1)
        }
      }
    }
    else {
      delete events[name]
    }
  }

  return seajs
}

// Emit event, firing all bound callbacks. Callbacks are passed the same
// arguments as `emit` is, apart from the event name
var emit = seajs.emit = function(name, data) {
  var list = events[name], fn

  if (list) {
    // Copy callback lists to prevent modification
    list = list.slice()

    // Execute event callbacks
    while ((fn = list.shift())) {
      fn(data)
    }
  }

  return seajs
}


Fix a bug in Node.js
Fix a bug in Node.js
