Updated to use controller list not tabs

This is more inline with iOS style, where the controllers that show
content drive the tabs, not the tab list.

hacking/TabBarController.js

@@ -6,57 +6,71 @@ TabBar.prototype = {};
 TabBarController = function(options) {
   this.tabBar = options.tabBar;
 
-  this.tabs = [];
+  this.controllers = [];
 
   // Bind or set our tabWillChange callback
-  this.tabWillChange = options.tabWillChange || function(tab) {};
-  this.tabChanged = options.tabChanged || function(tab) {};
+  this.controllerWillChange = options.controllerWillChange || function(controller) {};
+  this.controllerChanged = options.controllerChanged || function(controller) {};
 };
 
 TabBarController.prototype = {
-  selectTab: function(index) {
+  selectController: function(index) {
     var shouldChange = true;
 
     // Check if we should switch to this tab. This lets the app
     // cancel tab switches if the context isn't right, for example.
-    if(this.tabWillChange) {
-      if(this.tabWillChange(this.tabs[index], index) === false) {
+    if(this.controllerWillChange) {
+      if(this.controllerWillChange(this.controllers[index], index) === false) {
         shouldChange = false;
       }
     }
 
     if(shouldChange) {
-      this.selectedTab = this.tabs[index];
-      this.tabChanged && this.tabChanged(this.selectedTab, index);
+      this.setSelectedController(index);
+      this.controllerChanged && this.controllerChanged(this.selectedController, this.selectedIndex);
     }
   },
 
+  // Force the selection of a controller at the given index
+  setSelectedController: function(index) {
+    this.selectedController = this.controllers[index];
+    this.selectedIndex = index;
+  },
+
+  _clearSelected: function() {
+    this.selectedController = null;
+    this.selectedIndex = -1;
+  },
+
   // Return the tab at the given index
-  getTab: function(index) {
-    return this.tabs[index];
+  getController: function(index) {
+    return this.controllers[index];
   },
 
   // Return the current tab list
-  getTabs: function() {
-    return this.tabs;
+  getControllers: function() {
+    return this.controllers;
   },
 
   // Get the currently selected tab
-  getSelectedTab: function() {
-    return this.selectedTab;
+  getSelectedController: function() {
+    return this.selectedController;
   },
 
   // Add a tab
-  addTab: function(tab) {
-    this.tabs.push(tab);
-    if(!this.selectedTab) {
-      this.selectedTab = tab;
+  addController: function(controller) {
+    this.controllers.push(controller);
+
+    // If we don't have a selected controller yet, select the first one.
+    if(!this.selectedController) {
+      this.setSelectedController(0);
     }
   },
 
   // Set the tabs and select the first
-  setTabs: function(tabs) {
-    this.tabs = tabs;
-    this.selectTab(0);
+  setControllers: function(controllers) {
+    this.controllers = controllers;
+    this._clearSelected();
+    this.selectController(0);
   }
 }

hacking/TabBarController.unit.js

@@ -7,67 +7,67 @@ describe('TabBarController', function() {
     });
   })
 
-  it('Should add tabs', function() {
-    ctrl.addTab({
-      text: 'Item 1'
+  it('Should add Controllers', function() {
+    ctrl.addController({
+      title: 'Item 1'
     });
 
-    expect(ctrl.getTab(0).text).toEqual('Item 1');
+    expect(ctrl.getController(0).title).toEqual('Item 1');
   });
 
-  it('Should set tabs', function() {
-    var tabs = [
-      { text: 'Item 1' },
-      { text: 'Item 2' },
-      { text: 'Item 3' },
+  it('Should set Controllers', function() {
+    var Controllers = [
+      { title: 'Item 1' },
+      { title: 'Item 2' },
+      { title: 'Item 3' },
     ];
-    ctrl.setTabs(tabs);
+    ctrl.setControllers(Controllers);
 
-    expect(ctrl.getTabs()).toBe(tabs);
+    expect(ctrl.getControllers()).toBe(Controllers);
   });
 
-  it('Should select tab', function() {
-    tab = {
-      text: 'Item 1'
+  it('Should select Controller', function() {
+    Controller = {
+      title: 'Item 1'
     };
 
-    ctrl.addTab(tab);
+    ctrl.addController(Controller);
 
-    ctrl.selectTab(0);
+    ctrl.selectController(0);
 
-    expect(ctrl.getSelectedTab()).toEqual(tab);
+    expect(ctrl.getSelectedController()).toEqual(Controller);
   });
 
   it('Should trigger lifecycle methods', function() {
-    tab = {
-      text: 'Item 1'
+    Controller = {
+      title: 'Item 1'
     };
 
-    spyOn(ctrl, 'tabWillChange');
-    spyOn(ctrl, 'tabChanged');
+    spyOn(ctrl, 'controllerWillChange');
+    spyOn(ctrl, 'controllerChanged');
 
-    ctrl.addTab(tab);
-    ctrl.selectTab(0);
-    expect(ctrl.tabWillChange).toHaveBeenCalled();
-    expect(ctrl.tabChanged).toHaveBeenCalled();
+    ctrl.addController(Controller);
+    ctrl.selectController(0);
+    expect(ctrl.controllerWillChange).toHaveBeenCalled();
+    expect(ctrl.controllerChanged).toHaveBeenCalled();
   });
 
-  it('Should allow cancelling tab switch', function() {
+  it('Should allow cancelling Controller switch', function() {
     ctrl = new TabBarController({
       tabBar: new TabBar(),
-      tabWillChange: function(tab) { return false; }
+      controllerWillChange: function(Controller) { return false; }
     });
 
-    ctrl.addTab({
-      text: 'Item 1'
+    ctrl.addController({
+      title: 'Item 1'
     });
-    ctrl.addTab({
-      text: 'Item 2'
+    ctrl.addController({
+      title: 'Item 2'
     });
-    ctrl.selectTab(1);
+    ctrl.selectController(1);
 
-    // Make sure the tab didn't switch
-    expect(ctrl.getSelectedTab()).toBe(ctrl.getTab(0));
+    // Make sure the Controller didn't switch
+    expect(ctrl.getSelectedController()).toBe(ctrl.getController(0));
   });
 
 })