fix(tooltip): triggers should be local to tooltip instances

Closes #692

src/tooltip/test/tooltip.spec.js

@@ -209,6 +209,32 @@ describe('tooltip', function() {
       elm.trigger('fakeTriggerAttr');
       expect( elmScope.tt_isOpen ).toBeFalsy();
     }));
+
+    it('should not share triggers among different element instances - issue 692', inject( function ($compile) {
+
+      scope.test = true;
+      elmBody = angular.element(
+        '<div>' +
+          '<input tooltip="Hello!" tooltip-trigger="{{ (test && \'mouseenter\' || \'click\') }}" />' +
+          '<input tooltip="Hello!" tooltip-trigger="{{ (test && \'mouseenter\' || \'click\') }}" />' +
+        '</div>'
+      );
+
+      $compile(elmBody)(scope);
+      scope.$apply();
+      var elm1 = elmBody.find('input').eq(0);
+      var elm2 = elmBody.find('input').eq(1);
+      var elmScope1 = elm1.scope();
+      var elmScope2 = elm2.scope();
+
+      scope.$apply('test = false');
+
+      elm2.trigger('mouseenter');
+      expect( elmScope2.tt_isOpen ).toBeFalsy();
+
+      elm2.click();
+      expect( elmScope2.tt_isOpen ).toBeTruthy();
+    }));
   });
 
   describe( 'with an append-to-body attribute', function() {

src/tooltip/tooltip.js

@@ -99,7 +99,6 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position' ] )
       }
 
       var directiveName = snake_case( type );
-      var triggers = setTriggers( undefined );
 
       var startSym = $interpolate.startSymbol();
       var endSym = $interpolate.endSymbol();
@@ -122,6 +121,7 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position' ] )
           var popupTimeout;
           var $body;
           var appendToBody = angular.isDefined( options.appendToBody ) ? options.appendToBody : false;
+          var triggers = setTriggers( undefined );
 
           // By default, the tooltip is not open.
           // TODO add ability to start tooltip opened