fix(checkbox): prevent ng-click firing on didabled checkboxes. Fixes

Author: jelbourn

src/components/checkbox/checkbox.js

@@ -54,7 +54,7 @@ function MdCheckboxDirective(inputDirective, $mdAria, $mdConstant, $mdTheming, $
     restrict: 'E',
     transclude: true,
     require: '?ngModel',
-    priority:210, // Run before ngAria
+    priority: 210, // Run before ngAria
     template: 
       '<div class="md-container" md-ink-ripple md-ink-ripple-checkbox>' +
         '<div class="md-icon"></div>' +
@@ -73,6 +73,14 @@ function MdCheckboxDirective(inputDirective, $mdAria, $mdConstant, $mdTheming, $
     tAttrs.tabindex = tAttrs.tabindex || '0';
     tElement.attr('role', tAttrs.type);
 
+    // Attach a click handler in compile in order to immediately stop propagation
+    // (especially for ng-click) when the checkbox is disabled.
+    tElement.on('click', function(event) {
+      if (this.hasAttribute('disabled')) {
+        event.stopImmediatePropagation();
+      }
+    });
+
     return function postLink(scope, element, attr, ngModelCtrl) {
       ngModelCtrl = ngModelCtrl || $mdUtil.fakeNgModel();
       $mdTheming(element);
@@ -83,10 +91,12 @@ function MdCheckboxDirective(inputDirective, $mdAria, $mdConstant, $mdTheming, $
             ngModelCtrl.$setViewValue.bind(ngModelCtrl)
         );
       }
+
       $$watchExpr('ngDisabled', 'tabindex', {
         true: '-1',
         false: attr.tabindex
       });
+
       $mdAria.expectWithText(element, 'aria-label');
 
       // Reuse the original input[type=checkbox] directive from Angular core.
@@ -102,14 +112,18 @@ function MdCheckboxDirective(inputDirective, $mdAria, $mdConstant, $mdTheming, $
         .on('keypress', keypressHandler)
         .on('mousedown', function() {
           scope.mouseActive = true;
-          $timeout(function(){
+          $timeout(function() {
             scope.mouseActive = false;
           }, 100);
         })
         .on('focus', function() {
-          if(scope.mouseActive === false) { element.addClass('md-focused'); }
+          if (scope.mouseActive === false) {
+            element.addClass('md-focused');
+          }
         })
-        .on('blur', function() { element.removeClass('md-focused'); });
+        .on('blur', function() {
+          element.removeClass('md-focused');
+        });
 
       ngModelCtrl.$render = render;
 
@@ -127,12 +141,18 @@ function MdCheckboxDirective(inputDirective, $mdAria, $mdConstant, $mdTheming, $
         var keyCode = ev.which || ev.keyCode;
         if (keyCode === $mdConstant.KEY_CODE.SPACE || keyCode === $mdConstant.KEY_CODE.ENTER) {
           ev.preventDefault();
-          if (!element.hasClass('md-focused')) { element.addClass('md-focused'); }
+
+          if (!element.hasClass('md-focused')) {
+            element.addClass('md-focused');
+          }
+
           listener(ev);
         }
       }
       function listener(ev) {
-        if (element[0].hasAttribute('disabled')) return;
+        if (element[0].hasAttribute('disabled')) {
+          return;
+        }
 
         scope.$apply(function() {
           // Toggle the checkbox value...