Abstract chrome browser action and windows stuff

js/background.js

@@ -59,10 +59,10 @@
         var opened = false;
         var panel = 0;
 
-        chrome.browserAction.onClicked.addListener(function () {
+        extension.browserAction(function () {
             if (opened === false) {
                 opened = true;
-                chrome.windows.create({
+                extension.windows.open({
                     url: 'index.html',
                     type: 'panel',
                     focused: true,
@@ -73,9 +73,9 @@
                     panel = window.id;
                 });
             } else if (opened === true) {
-                chrome.windows.update(panel, { focused: true });
+                extension.windows.focus(panel);
             }
-            chrome.windows.onRemoved.addListener(function (windowId) {
+            extension.windows.onClosed(function (windowId) {
                 if (windowId === panel) {
                     panel = 0;
                     opened = false;
@@ -226,7 +226,7 @@
     var windowMap = Whisper.windowMap = new Whisper.Bimap('windowId', 'modelId');
 
     // make sure panels are cleaned up on close
-    chrome.windows.onRemoved.addListener(function (windowId) {
+    extension.windows.onClosed(function (windowId) {
         if (windowMap.windowId[windowId]) {
             closeConversation(windowId);
         }

js/chromium.js

@@ -51,6 +51,36 @@
         });
     };
 
+    extension.windows = {
+        open: function(options, callback) {
+            chrome.windows.create(options, callback);
+        },
+
+        focus: function(id, callback) {
+            chrome.windows.update(id, { focused: true }, callback);
+        },
+
+        onClosed: function(callback) {
+            chrome.windows.onRemoved.addListener(callback);
+        },
+
+        getCurrent: function(callback) {
+            chrome.windows.getCurrent(callback);
+        },
+
+        remove: function(windowId) {
+            chrome.windows.remove(windowId);
+        },
+
+        getBackground: function() {
+            return chrome.extension.getBackgroundPage();
+        }
+    };
+
+    extension.browserAction = function(callback) {
+        chrome.browserAction.onClicked.addListener(callback);
+    };
+
     window.textsecure = window.textsecure || {};
     window.textsecure.registration = {
         done: function () {

js/conversation_panel.js

@@ -22,18 +22,21 @@
     function loadConversation (id) {
         var conversation = new Whisper.Conversation({ id: id });
         conversation.fetch().then(function () {
-            new Whisper.ConversationView({ model: conversation}).render().$el.appendTo($('#conversation-container'));
+            new Whisper.ConversationView({
+                model: conversation
+            }).render().$el.appendTo($('#conversation-container'));
         });
     };
 
-    var bg = chrome.extension.getBackgroundPage();
+    var bg = extension.windows.getBackground();
 
-    chrome.windows.getCurrent(function (windowInfo) {
+    extension.windows.getCurrent(function (windowInfo) {
         var windowId = window.document.title = windowInfo.id;
 
         // close the panel if background.html is refreshed
         bg.addEventListener('beforeunload', function () {
-            chrome.windows.remove(windowId);
+            // TODO: reattach after reload instead of closing.
+            extension.windows.remove(windowId);
         });
 
         loadConversation(bg.Whisper.windowMap.modelIdFrom(windowId));

js/panel_controller.js

@@ -31,7 +31,7 @@
     // prevent multiple copies of the same conversation from being opened
     if (!windowId) {
       // open the panel
-      chrome.windows.create({
+      extension.windows.open({
         url: 'conversation.html',
         type: 'panel',
         focused: true,
@@ -48,7 +48,7 @@
       });
     } else {
       // focus the panel
-      chrome.windows.update(windowId, { focused: true }, function () {
+      extension.windows.focus(windowId, function () {
         if (chrome.runtime.lastError) {
           // panel isn't actually open...
           window.closeConversation(windowId);

js/views/conversation_list_item_view.js

@@ -19,7 +19,7 @@ var Whisper = Whisper || {};
 (function () {
   'use strict';
 
-  var bg = chrome.extension.getBackgroundPage();
+  var bg = extension.windows.getBackground();
 
   // list of conversations, showing user/group and last message sent
   Whisper.ConversationListItemView = Backbone.View.extend({