feat(Header): Add subheader prop

docs/app/Examples/elements/Header/Content/HeaderSubheaderPropExample.js

@@ -0,0 +1,8 @@
+import React from 'react'
+import { Header } from 'stardust'
+
+const HeaderSubheaderPropExample = () => (
+  <Header as='h2' content='Account Settings' subheader='Manage your account settings and set email preferences' />
+)
+
+export default HeaderSubheaderPropExample

docs/app/Examples/elements/Header/Content/index.js

@@ -30,6 +30,10 @@ const HeaderContentExamples = () => (
       description='Headers may contain subheaders'
       examplePath='elements/Header/Content/HeaderSubheaderExample'
     />
+    <ComponentExample
+      description='You can pass an Subheader content to the Header subheader prop'
+      examplePath='elements/Header/Content/HeaderSubheaderPropExample'
+    />
   </ExampleSection>
 )
 

src/elements/Header/Header.js

@@ -22,7 +22,7 @@ import HeaderContent from './HeaderContent'
 function Header(props) {
   const {
     color, content, dividing, block, attached, floated, inverted, disabled, sub, size, textAlign,
-    icon, image, children, className,
+    icon, image, children, className, subheader,
   } = props
 
   const classes = cx(
@@ -47,22 +47,29 @@ function Header(props) {
 
   if (icon && typeof icon !== 'boolean') {
     return (
-      <ElementType className={classes} {...rest}>
+      <ElementType {...rest} className={classes}>
         {createIcon(icon)}
         {content && <HeaderContent>{content}</HeaderContent>}
+        {subheader && <HeaderSubheader content={subheader} />}
       </ElementType>
     )
   }
 
   if (image) {
     return (
-      <ElementType className={classes} {...rest}>
+      <ElementType {...rest} className={classes}>
         {createImage(image)} {content}
+        {subheader && <HeaderSubheader content={subheader} />}
       </ElementType>
     )
   }
 
-  return <ElementType {...rest} className={classes}>{children || content}</ElementType>
+  return (
+    <ElementType {...rest} className={classes}>
+      {children || content}
+      {subheader && <HeaderSubheader content={subheader} />}
+    </ElementType>
+  )
 }
 
 Header._meta = {
@@ -156,6 +163,12 @@ Header.propTypes = {
   /** Content headings are sized with em and are based on the font-size of their container. */
   size: PropTypes.oneOf(Header._meta.props.size),
 
+  /** Shorthand for the Header.Subheader component. Mutually exclusive with children */
+  subheader: customPropTypes.every([
+    customPropTypes.disallow(['children']),
+    PropTypes.string,
+  ]),
+
   /** Align header content */
   textAlign: PropTypes.oneOf(Header._meta.props.textAlign),
 }

src/elements/Header/HeaderSubheader.js

@@ -1,16 +1,22 @@
-import React, { PropTypes } from 'react'
 import cx from 'classnames'
-import { getElementType, getUnhandledProps, META } from '../../lib'
+import React, { PropTypes } from 'react'
+
+import {
+  customPropTypes,
+  getElementType,
+  getUnhandledProps,
+  META,
+} from '../../lib'
 
 function HeaderSubheader(props) {
-  const { children, className } = props
+  const { children, className, content } = props
   const classes = cx('sub header', className)
   const rest = getUnhandledProps(HeaderSubheader, props)
   const ElementType = getElementType(HeaderSubheader, props)
 
   return (
     <ElementType className={classes} {...rest}>
-      {children}
+      {children || content}
     </ElementType>
   )
 }
@@ -28,11 +34,20 @@ HeaderSubheader.propTypes = {
     PropTypes.func,
   ]),
 
-  /** Primary content of the HeaderSubheader */
-  children: PropTypes.node,
+  /** Primary content of the HeaderSubheader. Mutually exclusive with content */
+  children: customPropTypes.every([
+    customPropTypes.disallow(['content']),
+    PropTypes.node,
+  ]),
 
   /** Classes to add to the subheader className. */
   className: PropTypes.string,
+
+  /** Shorthand for primary content. Mutually exclusive with children */
+  content: customPropTypes.every([
+    customPropTypes.disallow(['children']),
+    PropTypes.string,
+  ]),
 }
 
 export default HeaderSubheader

test/specs/elements/Header/Header-test.js

@@ -1,4 +1,6 @@
+import faker from 'faker'
 import React from 'react'
+
 import Header from 'src/elements/Header/Header'
 import HeaderContent from 'src/elements/Header/HeaderContent'
 import HeaderSubheader from 'src/elements/Header/HeaderSubheader'
@@ -47,7 +49,7 @@ describe('Header', () => {
   describe('content', () => {
     it('adds child text', () => {
       shallow(<Header content='foo' />)
-        .should.have.prop('children', 'foo')
+        .should.contain.text('foo')
     })
     it('adds child text when there is an image', () => {
       shallow(<Header content='foo' image='foo.png' />)
@@ -65,4 +67,14 @@ describe('Header', () => {
       wrapper.should.not.have.descendants('HeaderContent')
     })
   })
+
+  describe('subheader', () => {
+    it('adds HeaderSubheader as child', () => {
+      const text = faker.hacker.phrase()
+
+      shallow(<Header subheader={text} />)
+        .find('HeaderSubheader')
+        .should.have.prop('content', text)
+    })
+  })
 })

test/specs/elements/Header/HeaderSubheader-test.js

@@ -1,7 +1,19 @@
+import faker from 'faker'
+import React from 'react'
+
 import HeaderSubheader from 'src/elements/Header/HeaderSubheader'
 import * as common from 'test/specs/commonTests'
 
 describe('HeaderSubheader', () => {
   common.isConformant(HeaderSubheader)
   common.rendersChildren(HeaderSubheader)
+
+  describe('content', () => {
+    it('renders text', () => {
+      const text = faker.hacker.phrase()
+
+      shallow(<HeaderSubheader content={text} />)
+        .should.contain.text(text)
+    })
+  })
 })