fix(dropdown): do not autoclose with outsideClick and append to body

- Do not auto-close the dropdown menu when it is set to `outsideClick` and dropdown-append-to-body is used

Closes #3792
Fixes #3645

src/dropdown/dropdown.js

@@ -40,8 +40,9 @@ angular.module('ui.bootstrap.dropdown', ['ui.bootstrap.position'])
       return;
     }
 
-    var $element = openScope.getElement();
-    if( evt && openScope.getAutoClose() === 'outsideClick' && $element && $element[0].contains(evt.target) ) {
+    var dropdownElement = openScope.getDropdownElement();
+    if (evt && openScope.getAutoClose() === 'outsideClick' &&
+      dropdownElement && dropdownElement[0].contains(evt.target)) {
       return;
     }
 
@@ -155,6 +156,10 @@ angular.module('ui.bootstrap.dropdown', ['ui.bootstrap.position'])
     elems[self.selectedOption].focus();
   };
 
+  scope.getDropdownElement = function() {
+    return self.dropdownMenu;
+  };
+
   scope.focusToggleElement = function() {
     if ( self.toggleElement ) {
       self.toggleElement[0].focus();

src/dropdown/test/dropdown.spec.js

@@ -412,14 +412,26 @@ describe('dropdownToggle', function() {
       expect(element.hasClass(dropdownConfig.openClass)).toBe(true);
     });
 
-    it('auto-close="outsideClick"', function() {
-      element = dropdown('outsideClick');
-      clickDropdownToggle();
-      expect(element.hasClass(dropdownConfig.openClass)).toBe(true);
-      element.find('ul li a').click();
-      expect(element.hasClass(dropdownConfig.openClass)).toBe(true);
-      $document.click();
-      expect(element.hasClass(dropdownConfig.openClass)).toBe(false);
+    describe('outsideClick', function() {
+      it('should close only on a click outside of the dropdown menu', function() {
+        element = dropdown('outsideClick');
+        clickDropdownToggle();
+        expect(element.hasClass(dropdownConfig.openClass)).toBe(true);
+        element.find('ul li a').click();
+        expect(element.hasClass(dropdownConfig.openClass)).toBe(true);
+        $document.click();
+        expect(element.hasClass(dropdownConfig.openClass)).toBe(false);
+      });
+
+      it('should work with dropdown-append-to-body', function() {
+        element = $compile('<li dropdown dropdown-append-to-body auto-close="outsideClick"><a href dropdown-toggle></a><ul class="dropdown-menu" id="dropdown-menu"><li><a href>Hello On Body</a></li></ul></li>')($rootScope);
+        clickDropdownToggle();
+        expect(element.hasClass(dropdownConfig.openClass)).toBe(true);
+        $document.find('#dropdown-menu').find('li').eq(0).trigger('click');
+        expect(element.hasClass(dropdownConfig.openClass)).toBe(true);
+        $document.click();
+        expect(element.hasClass(dropdownConfig.openClass)).toBe(false);
+      });
     });
 
     it('control with is-open', function() {