feat: support form switch

- make Input api similar to CustomInput (e.g. allow writing <Input type="switch" />
- make FormGroup api for switch similar to api for checkbox (e.g. allow
  writing <FormGroup switch />)

https://getbootstrap.com/docs/5.0/forms/checks-radios/#switches

docs/lib/examples/InputType.js

@@ -140,6 +140,10 @@ const Example = (props) => {
         <Input id="InputType-checkbox" type="checkbox" />
         <Label for="InputType-checkbox" check>Check me out</Label>
       </FormGroup>
+      <FormGroup switch>
+        <Input id="InputType-switch" type="switch" />
+        <Label for="InputType-switch" check>Check me out</Label>
+      </FormGroup>
     </Form>
   );
 }

src/FormGroup.js

@@ -7,6 +7,7 @@ const propTypes = {
   children: PropTypes.node,
   row: PropTypes.bool,
   check: PropTypes.bool,
+  switch: PropTypes.bool,
   inline: PropTypes.bool,
   disabled: PropTypes.bool,
   tag: tagPropType,
@@ -30,14 +31,17 @@ const FormGroup = (props) => {
     ...attributes
   } = props;
 
+  const formCheck = check || props.switch;
+
   const classes = mapToCssModules(classNames(
     className,
     row ? 'row' : false,
-    check ? 'form-check' : 'mb-3',
-    check && inline ? 'form-check-inline' : false,
-    check && disabled ? 'disabled' : false
+    formCheck ? 'form-check' : 'mb-3',
+    props.switch ? 'form-switch' : false,
+    formCheck && inline ? 'form-check-inline' : false,
+    formCheck && disabled ? 'disabled' : false
   ), cssModule);
-  
+
   if (Tag === 'fieldset') {
     attributes.disabled = disabled;
   }

src/Input.js

@@ -63,7 +63,7 @@ class Input extends React.Component {
       ...attributes
     } = this.props;
 
-    const checkInput = ['radio', 'checkbox'].indexOf(type) > -1;
+    const checkInput = ['switch', 'radio', 'checkbox'].indexOf(type) > -1;
     const isNotaNumber = new RegExp('\\D', 'g');
 
     const textareaInput = type === 'textarea';
@@ -112,7 +112,7 @@ class Input extends React.Component {
     );
 
     if (Tag === 'input' || (tag && typeof tag === 'function')) {
-      attributes.type = type;
+      attributes.type = type === 'switch' ? 'checkbox' : type;
     }
 
     if (

src/__tests__/FormGroup.spec.js

@@ -34,20 +34,41 @@ describe('FormGroup', () => {
     expect(wrapper.hasClass('form-check')).toBe(true);
   });
 
+  it('should render with "form-check" and "form-switch" class when switch prop is truthy', () => {
+    const wrapper = shallow(<FormGroup switch>Yo!</FormGroup>);
+
+    expect(wrapper.hasClass('form-check')).toBe(true);
+    expect(wrapper.hasClass('form-switch')).toBe(true);
+  });
+
   it('should not render with "form-check-inline" class when check prop is truthy and inline prop is falsy', () => {
     const wrapper = shallow(<FormGroup check>Yo!</FormGroup>);
 
     expect(wrapper.hasClass('form-check-inline')).toBe(false);
   });
 
+  it('should not render with "form-check-inline" class when switch prop is truthy and inline prop is falsy', () => {
+    const wrapper = shallow(<FormGroup switch>Yo!</FormGroup>);
+
+    expect(wrapper.hasClass('form-check-inline')).toBe(false);
+  });
+
   it('should render with "form-check" and "form-check-inline" classes when check prop and inline prop are both truthy', () => {
     const wrapper = shallow(<FormGroup check inline>Yo!</FormGroup>);
 
     expect(wrapper.hasClass('form-check')).toBe(true);
     expect(wrapper.hasClass('form-check-inline')).toBe(true);
   });
 
-  it('should not render with "form-check-inline" class when check prop is falsy and inline prop is truthy', () => {
+  it('should render with "form-check" and "form-switch" and "form-check-inline" classes when check prop and inline prop are both truthy', () => {
+    const wrapper = shallow(<FormGroup switch inline>Yo!</FormGroup>);
+
+    expect(wrapper.hasClass('form-check')).toBe(true);
+    expect(wrapper.hasClass('form-switch')).toBe(true);
+    expect(wrapper.hasClass('form-check-inline')).toBe(true);
+  });
+
+  it('should not render with "form-check-inline" class when check and switch prop are falsy and inline prop is truthy', () => {
     const wrapper = shallow(<FormGroup inline>Yo!</FormGroup>);
 
     expect(wrapper.hasClass('form-check-inline')).toBe(false);
@@ -59,7 +80,13 @@ describe('FormGroup', () => {
     expect(wrapper.hasClass('mb-3')).toBe(false);
   });
 
-  it('should not render with "disabled" class when disabled prop is truthy but check is not', () => {
+  it('should not render with "mb-3" class when switch prop is truthy', () => {
+    const wrapper = shallow(<FormGroup switch>Yo!</FormGroup>);
+
+    expect(wrapper.hasClass('mb-3')).toBe(false);
+  });
+
+  it('should not render with "disabled" class when disabled prop is truthy but check and switch are not', () => {
     const wrapper = shallow(<FormGroup disabled>Yo!</FormGroup>);
 
     expect(wrapper.hasClass('disabled')).toBe(false);
@@ -72,6 +99,13 @@ describe('FormGroup', () => {
     expect(wrapper.hasClass('form-check')).toBe(true);
   });
 
+  it('should render with "disabled" class when both switch and disabled props are truthy', () => {
+    const wrapper = shallow(<FormGroup switch disabled>Yo!</FormGroup>);
+
+    expect(wrapper.hasClass('disabled')).toBe(true);
+    expect(wrapper.hasClass('form-check')).toBe(true);
+  });
+
   it('should render with "row" class when row prop is truthy', () => {
     const wrapper = shallow(<FormGroup row>Yo!</FormGroup>);
 

src/__tests__/Input.spec.js

@@ -211,6 +211,12 @@ describe('Input', () => {
     expect(wrapper.hasClass('form-check-input')).toBe(true);
   });
 
+  it('should render with "form-check-input" class when type is switch', () => {
+    const wrapper = shallow(<Input type="switch" />);
+
+    expect(wrapper.hasClass('form-check-input')).toBe(true);
+  });
+
   it('should not render with "form-check-input" nor "form-control" class when type is checkbox and addon is truthy', () => {
     const wrapper = shallow(<Input addon type="checkbox" />);
 
@@ -243,6 +249,12 @@ describe('Input', () => {
     expect(wrapper.hasClass('other')).toBe(true);
   });
 
+  it('should render checkbox type when type is switch', () => {
+    const input = shallow(<Input type="switch" />);
+
+    expect(input.find('[type="checkbox"]').exists()).toBe(true);
+  });
+
   it('should render "select" and "textarea" without type property', () => {
     const input = shallow(<Input type="select">Yo!</Input>);
     const textarea = shallow(<Input type="textarea" />);