1 files changed, 70 insertions, 0 deletions
diff --git a/src/js/chrome/js/platform-port.js b/src/js/chrome/js/platform-port.js
new file mode 100644
index 0000000..8a5aeae
--- /dev/null
+++ b/src/js/chrome/js/platform-port.js
@@ -0,0 +1,70 @@
+/*
+ * Module     : chrome/chrome-port.js
+ * Copyright  : (c) 2011-2012, Galois, Inc.
+ *
+ * Maintainer :
+ * Stability  : Provisional
+ * Portability: Not Portable (Chrome Only)
+ *
+ * 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.
+ */
+
+if (typeof goog != 'undefined') {
+  goog.provide('fiveui.ChromePort');
+} else {
+  var fiveui = fiveui || {};
+}
+
+/**
+ * @constructor
+ * @param {!{onMessage:Object,postMessage:function(*):void}} port The connection to manage.
+ */
+fiveui.ChromePort = function(port) {
+  var events = {};
+
+  this._port = port;
+  this._events = events;
+
+  this._port.onMessage.addListener(function(obj) {
+    var evt = obj.type;
+    var cb = events[evt];
+    if(null != evt && null != cb) {
+      cb(obj.payload);
+    }
+  });
+};
+
+/**
+ * Listen to incoming messages.
+ *
+ * @param {!string} evt The event to listen for.
+ * @param {!function(*)} cb The callback to invoke.
+ * @return {void}
+ */
+fiveui.ChromePort.prototype.on = function(evt, cb) {
+  this._events[evt] = cb;
+};
+
+/**
+ * Send a message to the background.
+ *
+ * @param {!string} evt The event to fire.
+ * @param {?Object} obj The data to associate with the event.
+ * @return {void}
+ */
+fiveui.ChromePort.prototype.emit = function(evt, obj) {
+  // console.log('chromeport.emit: '+evt);
+  // console.log(obj);
+  this._port.postMessage({ type: evt, payload: obj });
+  // console.log('chromeport.emit: '+evt+' done');
+};