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Correctly select options when nested inside an optgroup #6442

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Apr 8, 2016
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Correctly select options when nested inside an optgroup
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trevorsmith committed Apr 7, 2016
commit b102e256634ce7973eee6695e9aa8cb46ad14e42
12 changes: 10 additions & 2 deletions src/renderers/dom/client/wrappers/ReactDOMOption.js
Original file line number Diff line number Diff line change
Expand Up @@ -32,8 +32,16 @@ var ReactDOMOption = {

// Look up whether this option is 'selected'
var selectValue = null;
if (nativeParent != null && nativeParent._tag === 'select') {
selectValue = ReactDOMSelect.getSelectValueContext(nativeParent);
if (nativeParent != null) {
var selectParent = nativeParent;

if (selectParent._tag === 'optgroup') {
selectParent = selectParent._nativeParent;
}

if (selectParent._tag === 'select') {
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I think we need a null check here, because selectParent could be null at this point, right?

selectValue = ReactDOMSelect.getSelectValueContext(selectParent);
}
}

// If the value is null (e.g., no specified value or after initial mount)
Expand Down
18 changes: 18 additions & 0 deletions src/renderers/dom/client/wrappers/__tests__/ReactDOMSelect-test.js
Original file line number Diff line number Diff line change
Expand Up @@ -537,4 +537,22 @@ describe('ReactDOMSelect', function() {
"Cannot set property 'pendingUpdate' of null"
);
});

it('should select grandchild options nested inside an optgroup', function() {
var stub =
<select value="b" onChange={noop}>
<optgroup label="group">
<option value="a">a</option>
<option value="b">b</option>
<option value="c">c</option>
</optgroup>
</select>;
var container = document.createElement('div');
stub = ReactDOM.render(stub, container);
var node = ReactDOM.findDOMNode(stub);
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You don't need to do a findDOMNode here. The value returned by render is the node, so var node = ReactDOM.render(stub, container); is sufficient.


expect(node.options[0].selected).toBe(false); // a
expect(node.options[1].selected).toBe(true); // b
expect(node.options[2].selected).toBe(false); // c
});
});