feat(modal): support custom template for modal window

Closes #2057

src/modal/docs/readme.md

@@ -11,6 +11,7 @@ The `$modal` service has only one method: `open(options)` where available option
 * `backdrop` - controls presence of a backdrop. Allowed values: true (default), false (no backdrop), `'static'` - backdrop is present but modal window is not closed when clicking outside of the modal window.
 * `keyboard` - indicates whether the dialog should be closable by hitting the ESC key, defaults to true
 * `windowClass` - additional CSS class(es) to be added to a modal window template
+* `windowTemplateUrl` - a path to a template overriding modal's window template
 
 The `open` method returns a modal instance, an object with the following properties:
 

src/modal/modal.js

@@ -83,7 +83,9 @@ angular.module('ui.bootstrap.modal', ['ui.bootstrap.transition'])
       },
       replace: true,
       transclude: true,
-      templateUrl: 'template/modal/window.html',
+      templateUrl: function(tElement, tAttrs) {
+        return tAttrs.templateUrl || 'template/modal/window.html';
+      },
       link: function (scope, element, attrs) {
         element.addClass(attrs.windowClass || '');
 
@@ -226,10 +228,12 @@ angular.module('ui.bootstrap.modal', ['ui.bootstrap.transition'])
         }
 
         var angularDomEl = angular.element('<div modal-window></div>');
-        angularDomEl.attr('window-class', modal.windowClass);
-        angularDomEl.attr('index', openedWindows.length() - 1);
-        angularDomEl.attr('animate', 'animate');
-        angularDomEl.html(modal.content);
+        angularDomEl.attr({
+          'template-url': modal.windowTemplateUrl,
+          'window-class': modal.windowClass,
+          'index': openedWindows.length() - 1,
+          'animate': 'animate'
+        }).html(modal.content);
 
         var modalDomEl = $compile(angularDomEl)(modal.scope);
         openedWindows.top().value.modalDomEl = modalDomEl;
@@ -353,7 +357,8 @@ angular.module('ui.bootstrap.modal', ['ui.bootstrap.transition'])
                 content: tplAndVars[0],
                 backdrop: modalOptions.backdrop,
                 keyboard: modalOptions.keyboard,
-                windowClass: modalOptions.windowClass
+                windowClass: modalOptions.windowClass,
+                windowTemplateUrl: modalOptions.windowTemplateUrl
               });
 
             }, function resolveError(reason) {

src/modal/test/modalWindow.spec.js

@@ -16,4 +16,14 @@ describe('modal window', function () {
     expect(windowEl).toHaveClass('test');
     expect(windowEl).toHaveClass('foo');
   });
+
+  it('should support custom template url', inject(function($templateCache) {
+    $templateCache.put('window.html', '<div class="mywindow" ng-transclude></div>');
+
+    var windowEl = $compile('<div modal-window template-url="window.html" window-class="test">content</div>')($rootScope);
+    $rootScope.$digest();
+
+    expect(windowEl).toHaveClass('mywindow');
+    expect(windowEl).toHaveClass('test');
+  }));
 });