Do not extract mouse events for children of disabled parents

Author: nhunzaker

src/renderers/dom/client/eventPlugins/SimpleEventPlugin.js

@@ -158,10 +158,14 @@ function isInteractive(tag) {
 
 function shouldPreventMouseEvent(inst) {
   if (inst) {
-    var disabled = inst._currentElement && inst._currentElement.props.disabled;
+    var focus = inst;
 
-    if (disabled) {
-      return isInteractive(inst._tag);
+    while (focus) {
+      if (focus._currentElement && focus._currentElement.props.disabled) {
+        return isInteractive(focus._tag);
+      }
+
+      focus = focus._hostParent;
     }
   }
 

src/renderers/dom/client/eventPlugins/__tests__/SimpleEventPlugin-test.js

@@ -58,6 +58,17 @@ describe('SimpleEventPlugin', function() {
     expect(onClick.mock.calls.length).toBe(1);
   });
 
+  it('clicking a child of a disabled element does not register a click', function() {
+    var element = ReactTestUtils.renderIntoDocument(
+        <button onClick={onClick} disabled><span /></button>
+    );
+    var child = ReactDOM.findDOMNode(element).querySelector('span');
+
+    onClick.mockClear();
+    ReactTestUtils.SimulateNative.click(child);
+    expect(onClick.mock.calls.length).toBe(0);
+  });
+
   ['button', 'input', 'select', 'textarea'].forEach(function(tagName) {
 
     describe(tagName, function() {