[added] standalone prop to Input, which will not render the form-group class

In some cases you may not want the `form-group` class applied to form
input wrapper divs. To achieve this simply apply the `standalone` prop.

Fixes react-bootstrap#205

Author: mtscout6

docs/src/ComponentsPage.js

@@ -548,7 +548,7 @@ const ComponentsPage = React.createClass({
                   <h1 id='input' className='page-header'>Input</h1>
                   <p>Renders an input in bootstrap wrappers. Supports label, help, text input add-ons, validation and use as wrapper.
                   Use <code>getValue()</code> or <code>getChecked()</code> to get the current state.
-                  The helper method <code>getInputDOMNode()</code> returns the internal input element.</p>
+                  The helper method <code>getInputDOMNode()</code> returns the internal input element. If you don't want the <code>form-group</code> class applied apply the prop named <code>standalone</code>.</p>
                   <ReactPlayground codeText={Samples.Input} />
                   <h2 id='input-types'>Types</h2>
                   <p>Supports <code>select</code>, <code>textarea</code>, <code>static</code> as well as standard HTML input types. <code>getValue()</code> returns an array for multiple select.</p>

src/FormGroup.js

@@ -0,0 +1,33 @@
+import React from 'react';
+import classSet from 'classnames';
+
+class FormGroup extends React.Component {
+  render() {
+    let classes = {
+      'form-group': !this.props.standalone,
+      'has-feedback': this.props.hasFeedback,
+      'has-success': this.props.bsStyle === 'success',
+      'has-warning': this.props.bsStyle === 'warning',
+      'has-error': this.props.bsStyle === 'error'
+    };
+
+    return (
+      <div className={classSet(classes, this.props.groupClassName)}>
+        {this.props.children}
+      </div>
+    );
+  }
+}
+
+FormGroup.defaultProps = {
+  standalone: false
+};
+
+FormGroup.propTypes = {
+  standalone: React.PropTypes.bool,
+  hasFeedback: React.PropTypes.bool,
+  bsStyle: React.PropTypes.oneOf(['success', 'warning', 'error']),
+  groupClassName: React.PropTypes.string
+};
+
+export default FormGroup;

src/Input.js

@@ -1,6 +1,7 @@
 import React from 'react';
 import classSet from 'classnames';
 import Button from './Button';
+import FormGroup from './FormGroup';
 
 const Input = React.createClass({
 
@@ -215,38 +216,21 @@ const Input = React.createClass({
     ) : children;
   },
 
-  renderFormGroup(children) {
-    let classes = {
-      'form-group': true,
-      'has-feedback': this.props.hasFeedback,
-      'has-success': this.props.bsStyle === 'success',
-      'has-warning': this.props.bsStyle === 'warning',
-      'has-error': this.props.bsStyle === 'error'
-    };
-    classes[this.props.groupClassName] = this.props.groupClassName;
-
-    return (
-      <div className={classSet(classes)}>
-        {children}
-      </div>
-    );
-  },
-
   render() {
+    let children;
+
     if (this.isCheckboxOrRadio()) {
-      return this.renderFormGroup(
-        this.renderWrapper([
-          this.renderCheckboxandRadioWrapper(
-            this.renderLabel(
-              this.renderInput()
-            )
-          ),
-          this.renderHelp()
-        ])
-      );
+      children = this.renderWrapper([
+        this.renderCheckboxandRadioWrapper(
+          this.renderLabel(
+            this.renderInput()
+          )
+        ),
+        this.renderHelp()
+      ]);
     }
     else {
-      return this.renderFormGroup([
+      children = [
         this.renderLabel(),
         this.renderWrapper([
           this.renderInputGroup(
@@ -255,8 +239,10 @@ const Input = React.createClass({
           this.renderIcon(),
           this.renderHelp()
         ])
-      ]);
+      ];
     }
+
+    return <FormGroup {...this.props}>{children}</FormGroup>;
   }
 });
 

test/FormGroupSpec.js

@@ -0,0 +1,86 @@
+import React from 'react';
+import ReactTestUtils from 'react/lib/ReactTestUtils';
+import FormGroup from '../src/FormGroup';
+
+describe('FormGroup', function() {
+  beforeEach(function() {
+    sinon.spy(console, 'warn');
+  });
+
+  afterEach(function() {
+    if (typeof console.warn.restore === 'function') {
+      console.warn.called.should.be.false;
+      console.warn.restore();
+    }
+  });
+
+  it('renders children', function() {
+    let instance = ReactTestUtils.renderIntoDocument(
+      <FormGroup>
+        <span className='child1' />
+        <span className='child2' />
+      </FormGroup>
+    );
+
+    assert.ok(ReactTestUtils.findRenderedDOMComponentWithClass(instance, 'child1'));
+    assert.ok(ReactTestUtils.findRenderedDOMComponentWithClass(instance, 'child2'));
+  });
+
+  it('renders with form-group class', function() {
+    let instance = ReactTestUtils.renderIntoDocument(
+      <FormGroup>
+        <span />
+      </FormGroup>
+    );
+
+    assert.ok(ReactTestUtils.findRenderedDOMComponentWithClass(instance, 'form-group'));
+  });
+
+  it('renders no form-group class when standalone', function() {
+    let instance = ReactTestUtils.renderIntoDocument(
+      <FormGroup standalone>
+        <span />
+      </FormGroup>
+    );
+
+    assert.equal(ReactTestUtils.scryRenderedDOMComponentsWithClass(instance, 'form-group').length, 0);
+  });
+
+  [{
+    className: 'has-feedback',
+    props: { hasFeedback: true }
+  }, {
+    className: 'has-success',
+    props: { bsStyle: 'success' }
+  }, {
+    className: 'has-warning',
+    props: { bsStyle: 'warning' }
+  }, {
+    className: 'has-error',
+    props: { bsStyle: 'error' }
+  }, {
+    className: 'custom-group',
+    props: { groupClassName: 'custom-group' }
+  }
+  ].forEach(function(testCase) {
+    it(`does not render ${testCase.className} class`, function() {
+      let instance = ReactTestUtils.renderIntoDocument(
+        <FormGroup>
+          <span />
+        </FormGroup>
+      );
+
+      assert.equal(ReactTestUtils.scryRenderedDOMComponentsWithClass(instance, testCase.className).length, 0);
+    });
+
+    it(`renders with ${testCase.className} class`, function() {
+      let instance = ReactTestUtils.renderIntoDocument(
+        <FormGroup {...testCase.props}>
+          <span />
+        </FormGroup>
+      );
+
+      assert.ok(ReactTestUtils.findRenderedDOMComponentWithClass(instance, testCase.className));
+    });
+  });
+});

test/InputSpec.js

@@ -167,6 +167,30 @@ describe('Input', function () {
     assert.ok(ReactTestUtils.findRenderedDOMComponentWithClass(instance, 'help-block'));
   });
 
+  it('renders form-group class', function() {
+    let instance = ReactTestUtils.renderIntoDocument(
+      <Input />
+    );
+
+    assert.ok(ReactTestUtils.findRenderedDOMComponentWithClass(instance, 'form-group'));
+  });
+
+  it('renders no form-group class', function() {
+    let instance = ReactTestUtils.renderIntoDocument(
+      <Input standalone />
+    );
+
+    assert.equal(ReactTestUtils.scryRenderedDOMComponentsWithClass(instance, 'form-group').length, 0);
+  });
+
+  it('renders custom-form-group class', function() {
+    let instance = ReactTestUtils.renderIntoDocument(
+      <Input groupClassName='custom-form-class' />
+    );
+
+    assert.ok(ReactTestUtils.findRenderedDOMComponentWithClass(instance, 'custom-form-class'));
+  });
+
   it('renders feedback icon', function () {
     let instance = ReactTestUtils.renderIntoDocument(
       <Input hasFeedback={true} bsStyle="error" />