Adding mapbox-gl branch

mapbox-gl/closure-library/closure/goog/pubsub/topicid.js

@@ -0,0 +1,61 @@
+// Copyright 2014 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+goog.provide('goog.pubsub.TopicId');
+
+
+
+/**
+ * A templated class that is used to register {@code goog.pubsub.PubSub}
+ * subscribers.
+ *
+ * Typical usage for a publisher:
+ * <code>
+ *   /** @type {!goog.pubsub.TopicId<!zorg.State>}
+ *   zorg.TopicId.STATE_CHANGE = new goog.pubsub.TopicId(
+ *       goog.events.getUniqueId('state-change'));
+ *
+ *   // Compiler enforces that these types are correct.
+ *   pubSub.publish(zorg.TopicId.STATE_CHANGE, zorg.State.STARTED);
+ * </code>
+ *
+ * Typical usage for a subscriber:
+ * <code>
+ *   // Compiler enforces the callback parameter type.
+ *   pubSub.subscribe(zorg.TopicId.STATE_CHANGE, function(state) {
+ *     if (state == zorg.State.STARTED) {
+ *       // Handle STARTED state.
+ *     }
+ *   });
+ * </code>
+ *
+ * @param {string} topicId
+ * @template PAYLOAD
+ * @constructor
+ * @final
+ * @struct
+ */
+goog.pubsub.TopicId = function(topicId) {
+  /**
+   * @const
+   * @private
+   */
+  this.topicId_ = topicId;
+};
+
+
+/** @override */
+goog.pubsub.TopicId.prototype.toString = function() {
+  return this.topicId_;
+};