1 files changed, 193 insertions, 0 deletions
diff --git a/node_modules/mocha/lib/browser/events.js b/node_modules/mocha/lib/browser/events.js
new file mode 100644
index 000000000..b4342f620
--- /dev/null
+++ b/node_modules/mocha/lib/browser/events.js
@@ -0,0 +1,193 @@
+/**
+ * Module exports.
+ */
+
+exports.EventEmitter = EventEmitter;
+
+/**
+ * Object#toString reference.
+ */
+var objToString = Object.prototype.toString;
+
+/**
+ * Check if a value is an array.
+ *
+ * @api private
+ * @param {*} val The value to test.
+ * @return {boolean} true if the value is an array, otherwise false.
+ */
+function isArray(val) {
+  return objToString.call(val) === '[object Array]';
+}
+
+/**
+ * Event emitter constructor.
+ *
+ * @api public
+ */
+function EventEmitter() {}
+
+/**
+ * Add a listener.
+ *
+ * @api public
+ * @param {string} name Event name.
+ * @param {Function} fn Event handler.
+ * @return {EventEmitter} Emitter instance.
+ */
+EventEmitter.prototype.on = function(name, fn) {
+  if (!this.$events) {
+    this.$events = {};
+  }
+
+  if (!this.$events[name]) {
+    this.$events[name] = fn;
+  } else if (isArray(this.$events[name])) {
+    this.$events[name].push(fn);
+  } else {
+    this.$events[name] = [this.$events[name], fn];
+  }
+
+  return this;
+};
+
+EventEmitter.prototype.addListener = EventEmitter.prototype.on;
+
+/**
+ * Adds a volatile listener.
+ *
+ * @api public
+ * @param {string} name Event name.
+ * @param {Function} fn Event handler.
+ * @return {EventEmitter} Emitter instance.
+ */
+EventEmitter.prototype.once = function(name, fn) {
+  var self = this;
+
+  function on() {
+    self.removeListener(name, on);
+    fn.apply(this, arguments);
+  }
+
+  on.listener = fn;
+  this.on(name, on);
+
+  return this;
+};
+
+/**
+ * Remove a listener.
+ *
+ * @api public
+ * @param {string} name Event name.
+ * @param {Function} fn Event handler.
+ * @return {EventEmitter} Emitter instance.
+ */
+EventEmitter.prototype.removeListener = function(name, fn) {
+  if (this.$events && this.$events[name]) {
+    var list = this.$events[name];
+
+    if (isArray(list)) {
+      var pos = -1;
+
+      for (var i = 0, l = list.length; i < l; i++) {
+        if (list[i] === fn || (list[i].listener && list[i].listener === fn)) {
+          pos = i;
+          break;
+        }
+      }
+
+      if (pos < 0) {
+        return this;
+      }
+
+      list.splice(pos, 1);
+
+      if (!list.length) {
+        delete this.$events[name];
+      }
+    } else if (list === fn || (list.listener && list.listener === fn)) {
+      delete this.$events[name];
+    }
+  }
+
+  return this;
+};
+
+/**
+ * Remove all listeners for an event.
+ *
+ * @api public
+ * @param {string} name Event name.
+ * @return {EventEmitter} Emitter instance.
+ */
+EventEmitter.prototype.removeAllListeners = function(name) {
+  if (name === undefined) {
+    this.$events = {};
+    return this;
+  }
+
+  if (this.$events && this.$events[name]) {
+    this.$events[name] = null;
+  }
+
+  return this;
+};
+
+/**
+ * Get all listeners for a given event.
+ *
+ * @api public
+ * @param {string} name Event name.
+ * @return {EventEmitter} Emitter instance.
+ */
+EventEmitter.prototype.listeners = function(name) {
+  if (!this.$events) {
+    this.$events = {};
+  }
+
+  if (!this.$events[name]) {
+    this.$events[name] = [];
+  }
+
+  if (!isArray(this.$events[name])) {
+    this.$events[name] = [this.$events[name]];
+  }
+
+  return this.$events[name];
+};
+
+/**
+ * Emit an event.
+ *
+ * @api public
+ * @param {string} name Event name.
+ * @return {boolean} true if at least one handler was invoked, else false.
+ */
+EventEmitter.prototype.emit = function(name) {
+  if (!this.$events) {
+    return false;
+  }
+
+  var handler = this.$events[name];
+
+  if (!handler) {
+    return false;
+  }
+
+  var args = Array.prototype.slice.call(arguments, 1);
+
+  if (typeof handler === 'function') {
+    handler.apply(this, args);
+  } else if (isArray(handler)) {
+    var listeners = handler.slice();
+
+    for (var i = 0, l = listeners.length; i < l; i++) {
+      listeners[i].apply(this, args);
+    }
+  } else {
+    return false;
+  }
+
+  return true;
+};