fix(jqLite): ensure mouseenter works with svg elements on IE

Closes #10259
Closes #10276

Author: Kuzminov Aleksandr Sergeevich

src/jqLite.js

@@ -241,6 +241,14 @@ function jqLiteParseHTML(html, context) {
   return [];
 }
 
+
+// IE9-11 has no method "contains" in SVG element and in Node.prototype. Bug #10259.
+var jqLiteContains = Node.prototype.contains || function(arg) {
+  // jshint bitwise: false
+  return !!(this.compareDocumentPosition(arg) & 16);
+  // jshint bitwise: true
+};
+
 /////////////////////////////////////////////
 function JQLite(element) {
   if (element instanceof JQLite) {
@@ -826,7 +834,7 @@ forEach({
             var target = this, related = event.relatedTarget;
             // For mousenter/leave call the handler if related is outside the target.
             // NB: No relatedTarget if the mouse left/entered the browser window
-            if (!related || (related !== target && !target.contains(related))) {
+            if (!related || (related !== target && !jqLiteContains.call(target, related))) {
               handle(event, type);
             }
           });

test/jqLiteSpec.js

@@ -1193,52 +1193,54 @@ describe('jqLite', function() {
     });
 
     describe('mouseenter-mouseleave', function() {
-      var root, parent, sibling, child, log;
+      var root, parent, child, log;
 
-      beforeEach(function() {
+      function setup(html, parentNode, childNode) {
         log = '';
-        root = jqLite('<div>root<p>parent<span>child</span></p><ul></ul></div>');
-        parent = root.find('p');
-        sibling = root.find('ul');
-        child = parent.find('span');
+        root = jqLite(html);
+        parent = root.find(parentNode);
+        child = parent.find(childNode);
 
         parent.on('mouseenter', function() { log += 'parentEnter;'; });
         parent.on('mouseleave', function() { log += 'parentLeave;'; });
 
         child.on('mouseenter', function() { log += 'childEnter;'; });
         child.on('mouseleave', function() { log += 'childLeave;'; });
-      });
+      }
+
+      function browserMoveTrigger(from, to) {
+        var fireEvent = function(type, element, relatedTarget) {
+          var evnt;
+          evnt = document.createEvent('MouseEvents');
+
+          var originalPreventDefault = evnt.preventDefault,
+          appWindow = window,
+          fakeProcessDefault = true,
+          finalProcessDefault;
+
+          evnt.preventDefault = function() {
+            fakeProcessDefault = false;
+            return originalPreventDefault.apply(evnt, arguments);
+          };
+
+          var x = 0, y = 0;
+          evnt.initMouseEvent(type, true, true, window, 0, x, y, x, y, false, false,
+          false, false, 0, relatedTarget);
+
+          element.dispatchEvent(evnt);
+        };
+        fireEvent('mouseout', from[0], to[0]);
+        fireEvent('mouseover', to[0], from[0]);
+      }
 
       afterEach(function() {
         dealoc(root);
       });
 
       it('should fire mouseenter when coming from outside the browser window', function() {
         if (window.jQuery) return;
-        var browserMoveTrigger = function(from, to) {
-          var fireEvent = function(type, element, relatedTarget) {
-            var evnt;
-            evnt = document.createEvent('MouseEvents');
-
-            var originalPreventDefault = evnt.preventDefault,
-            appWindow = window,
-            fakeProcessDefault = true,
-            finalProcessDefault;
-
-            evnt.preventDefault = function() {
-              fakeProcessDefault = false;
-              return originalPreventDefault.apply(evnt, arguments);
-            };
-
-            var x = 0, y = 0;
-            evnt.initMouseEvent(type, true, true, window, 0, x, y, x, y, false, false,
-            false, false, 0, relatedTarget);
-
-            element.dispatchEvent(evnt);
-          };
-          fireEvent('mouseout', from[0], to[0]);
-          fireEvent('mouseover', to[0], from[0]);
-        };
+
+        setup('<div>root<p>parent<span>child</span></p><ul></ul></div>', 'p', 'span');
 
         browserMoveTrigger(root, parent);
         expect(log).toEqual('parentEnter;');
@@ -1253,6 +1255,28 @@ describe('jqLite', function() {
         expect(log).toEqual('parentEnter;childEnter;childLeave;parentLeave;');
 
       });
+
+      it('should fire the mousenter on SVG elements', function() {
+        if (window.jQuery) return;
+
+        setup(
+          '<div>' +
+          '<svg xmlns="http://www.w3.org/2000/svg"' +
+          '     viewBox="0 0 18.75 18.75"' +
+          '     width="18.75"' +
+          '     height="18.75"' +
+          '     version="1.1">' +
+          '       <path d="M0,0c0,4.142,3.358,7.5,7.5,7.5s7.5-3.358,7.5-7.5-3.358-7.5-7.5-7.5-7.5,3.358-7.5,7.5"' +
+          '             fill-rule="nonzero"' +
+          '             fill="#CCC"' +
+          '             ng-attr-fill="{{data.color || \'#CCC\'}}"/>' +
+          '</svg>' +
+          '</div>',
+          'svg', 'path');
+
+        browserMoveTrigger(parent, child);
+        expect(log).toEqual('childEnter;');
+      });
     });
 
     // Only run this test for jqLite and not normal jQuery