feat(tab): add select expressions

- Add support for event and tab being available in select/deselect
  callbacks

Author: wesleycho

Diff for: src/tabs/docs/readme.md

@@ -29,7 +29,7 @@ AngularJS version of the tabs directive.
 
 * `deselect()`
   <small class="badge">$</small> -
-  An optional expression called when tab is deactivated.
+  An optional expression called when tab is deactivated. Supports $event and $tab in template for expression.
 
 * `disable`
   <small class="badge">$</small>
@@ -45,7 +45,7 @@ AngularJS version of the tabs directive.
 
 * `select()`
   <small class="badge">$</small> -
-  An optional expression called when tab is activated.
+  An optional expression called when tab is activated. Supports $event and $tab in template for expression.
 
 * `template-url`
   _(Default: `uib/template/tabs/tab.html`)_ -

Diff for: src/tabs/tabs.js

@@ -5,18 +5,24 @@ angular.module('ui.bootstrap.tabs', [])
     oldIndex;
   ctrl.tabs = [];
 
-  ctrl.select = function(index) {
+  ctrl.select = function(index, evt) {
     if (!destroyed) {
       var previousIndex = findTabIndex(oldIndex);
       var previousSelected = ctrl.tabs[previousIndex];
       if (previousSelected) {
-        previousSelected.tab.onDeselect();
+        previousSelected.tab.onDeselect({
+          $event: evt,
+          $tab: ctrl.tabs[previousIndex].tab
+        });
         previousSelected.tab.active = false;
       }
 
       var selected = ctrl.tabs[index];
       if (selected) {
-        selected.tab.onSelect();
+        selected.tab.onSelect({
+          $event: evt,
+          $tab: selected
+        });
         selected.tab.active = true;
         ctrl.active = selected.index;
         oldIndex = selected.index;
@@ -132,7 +138,7 @@ angular.module('ui.bootstrap.tabs', [])
         });
       }
 
-      scope.select = function() {
+      scope.select = function(evt) {
         if (!scope.disabled) {
           var index;
           for (var i = 0; i < tabsetCtrl.tabs.length; i++) {
@@ -142,7 +148,7 @@ angular.module('ui.bootstrap.tabs', [])
             }
           }
 
-          tabsetCtrl.select(index);
+          tabsetCtrl.select(index, evt);
         }
       };
 

Diff for: template/tabs/tab.html

@@ -1,3 +1,3 @@
 <li ng-class="{active: active, disabled: disabled}" class="uib-tab">
-  <a href ng-click="select()" uib-tab-heading-transclude>{{heading}}</a>
+  <a href ng-click="select($event)" uib-tab-heading-transclude>{{heading}}</a>
 </li>