fix(SplitButton): Updating splitButton component to match Teams redlines

CHANGELOG.md

@@ -17,6 +17,9 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 ## [Unreleased]
 
+### Fixes
+- Updating `splitButton` component to match Teams redlines @notandrew ([#2108](https://github.com/microsoft/fluent-ui-react/pull/2108))
+
 <!--------------------------------[ v0.42.0 ]------------------------------- -->
 ## [v0.42.0](https://github.com/microsoft/fluent-ui-react/tree/v0.42.0) (2019-12-12)
 [Compare changes](https://github.com/microsoft/fluent-ui-react/compare/v0.41.01..v0.42.0)

docs/src/examples/components/SplitButton/Types/SplitButtonExampleSmall.shorthand.tsx

@@ -0,0 +1,26 @@
+import * as React from 'react'
+import { SplitButton } from '@fluentui/react'
+
+const SplitButtonExampleSmallShorthand = () => (
+  <>
+    <SplitButton
+      menu={[
+        { key: 'group', content: 'New group message' },
+        { key: 'channel', content: 'New channel message' },
+      ]}
+      button={{
+        content: 'small',
+        'aria-roledescription': 'splitbutton',
+        'aria-describedby': 'instruction-message',
+      }}
+      size="small"
+      toggleButton={{ 'aria-label': 'expand options menu' }}
+      onMainButtonClick={() => alert('button was clicked')}
+    />
+    <span aria-hidden="true" id="instruction-message" style={{ opacity: 0 }}>
+      to open menu, press Alt + Arrow Down
+    </span>
+  </>
+)
+
+export default SplitButtonExampleSmallShorthand

docs/src/examples/components/SplitButton/Types/index.tsx

@@ -14,6 +14,11 @@ const SplitButton = () => (
       description="A SplitButton can be formatted to show primary level of emphasis."
       examplePath="components/SplitButton/Types/SplitButtonExamplePrimary"
     />
+    <ComponentExample
+      title="small Split Button"
+      description="small splitbutton"
+      examplePath="components/SplitButton/Types/SplitButtonExampleSmall"
+    />
   </ExampleSection>
 )
 

packages/react/src/components/SplitButton/SplitButton.tsx

@@ -29,6 +29,7 @@ import { PopupProps } from '../Popup/Popup'
 
 export interface SplitButtonSlotClassNames {
   toggleButton: string
+  size?: string
 }
 
 export interface SplitButtonProps
@@ -84,6 +85,9 @@ export interface SplitButtonProps
   /** A split button can be formatted to show different levels of emphasis. */
   secondary?: boolean
 
+  /** A split button can be small */
+  size?: string
+
   /** Shorthand for the toggle button. */
   toggleButton?: ShorthandValue<ButtonProps>
 }
@@ -118,14 +122,15 @@ class SplitButton extends AutoControlledComponent<WithAsProp<SplitButtonProps>,
     onMenuItemClick: PropTypes.func,
     onOpenChange: PropTypes.func,
     open: PropTypes.bool,
+    size: PropTypes.string,
     primary: customPropTypes.every([customPropTypes.disallow(['secondary']), PropTypes.bool]),
     secondary: customPropTypes.every([customPropTypes.disallow(['primary']), PropTypes.bool]),
     toggleButton: customPropTypes.itemShorthand,
   }
 
   static defaultProps = {
     accessibility: splitButtonBehavior,
-    as: 'span',
+    as: 'div',
     toggleButton: {},
   }
 
@@ -174,7 +179,7 @@ class SplitButton extends AutoControlledComponent<WithAsProp<SplitButtonProps>,
     const { button, disabled, menu, primary, secondary, toggleButton } = this.props
     const trigger = Button.create(button, {
       defaultProps: () => ({
-        styles: styles.button,
+        styles: styles.menuButton,
         primary,
         secondary,
         disabled,
@@ -202,9 +207,10 @@ class SplitButton extends AutoControlledComponent<WithAsProp<SplitButtonProps>,
         )}
         {Button.create(toggleButton, {
           defaultProps: () => ({
+            styles: styles.toggleButton,
             className: SplitButton.slotClassNames.toggleButton,
             disabled,
-            icon: 'icon-arrow-down',
+            icon: 'icon-menu-arrow-down',
             iconOnly: true,
             primary,
             secondary,

packages/react/src/themes/teams/components/SplitButton/splitButtonStyles.ts

@@ -1,51 +1,95 @@
 import { ICSSInJSStyle } from '../../../types'
 import getBorderFocusStyles from '../../getBorderFocusStyles'
-import SplitButton from '../../../../components/SplitButton/SplitButton'
+import getIconFillOrOutlineStyles from '../../getIconFillOrOutlineStyles'
 
 const splitButtonStyles = {
-  button: ({ variables: v }): ICSSInJSStyle => ({
-    border: 0,
+  menuButton: ({ props: p, variables: v }): ICSSInJSStyle => ({
+    borderTopRightRadius: 0,
+    borderBottomRightRadius: 0,
+    borderRightWidth: 0,
     padding: v.padding,
 
+    ...(p.size === 'small' && {
+      height: v.smallDimension,
+      padding: v.smallPadding,
+      minWidth: v.smallMinWidth,
+      boxShadow: v.smallBoxShadow,
+    }),
+
     ':focus-visible': {
-      '::before': { border: 0 },
-      '::after': { border: 0 },
+      borderRightWidth: 0,
+
+      ':before': {
+        borderRightWidth: 0,
+      },
+
+      ':after': {
+        borderRightWidth: 0,
+      },
+    },
+
+    ':active': {
+      animationName: 'unset',
+      animationDuration: 'unset',
     },
-    ':active': { backgroundColor: v.backgroundColorActive },
   }),
+
+  toggleButton: ({ props: p, variables: v, theme: { siteVariables } }): ICSSInJSStyle => ({
+    borderTopLeftRadius: 0,
+    borderBottomLeftRadius: 0,
+    borderColor: v.borderColor,
+    ...getIconFillOrOutlineStyles({ outline: true }),
+
+    ...(p.primary && {
+      borderWidth: `0 0 0 ${siteVariables.borderWidth}`,
+      borderColor: v.borderColorPrimary,
+    }),
+
+    ...(p.disabled && {
+      borderWidth: `0 0 0 ${siteVariables.borderWidth}`,
+      borderColor: v.borderColorDisabled,
+    }),
+
+    ...(p.size === 'small' && {
+      height: v.smallDimension,
+      width: v.smallDimension,
+      minWidth: v.smallMinWidth,
+      boxShadow: v.smallBoxShadow,
+    }),
+
+    ':focus-visible': {
+      ':before': {
+        borderLeftWidth: 0,
+      },
+
+      ':after': {
+        borderLeftWidth: 0,
+      },
+    },
+
+    ':active': {
+      animationName: 'unset',
+      animationDuration: 'unset',
+    },
+  }),
+
   root: ({ props: p, variables: v, theme: { siteVariables } }): ICSSInJSStyle => {
-    const { borderWidth } = siteVariables
     const borderFocusStyles = getBorderFocusStyles({
       siteVariables,
     })
 
     return {
-      border: `${borderWidth} solid ${v.borderColor}`,
       borderRadius: v.borderRadius,
       position: 'relative',
       display: 'inline-block',
 
-      [`& .${SplitButton.slotClassNames.toggleButton}`]: {
-        borderRight: 0,
-        borderTop: 0,
-        borderBottom: 0,
-      },
-
       ':focus-within': {
         boxShadow: 'none',
-        ...(p.isFromKeyboard
-          ? {
-              [`& .${SplitButton.slotClassNames.toggleButton}`]: {
-                color: p.primary ? v.primaryColorFocus : v.colorFocus,
-                backgroundColor: p.primary ? v.primaryBackgroundColorFocus : v.backgroundColorFocus,
-                borderColor: siteVariables.colors.white,
-              },
-
-              color: v.colorFocus,
-              backgroundColor: v.backgroundColorFocus,
-              ...borderFocusStyles[':focus-visible'],
-            }
-          : { ':active': { backgroundColor: v.backgroundColorActive } }),
+        ...(p.isFromKeyboard && {
+          // make sure focus is coming from keyboard before applying the focus styles
+          // otherwise focus state is applied only to the button and not the toggle
+          ...borderFocusStyles[':focus-visible'],
+        }),
       },
     }
   },

packages/react/src/themes/teams/components/SplitButton/splitButtonVariables.ts

@@ -1,29 +1,28 @@
 import { SiteVariablesPrepared } from '../../../types'
-
 import { pxToRem } from '../../../../utils'
 
 export interface SplitButtonVariables {
   borderRadius: string
-  backgroundColorFocus: string
-  boxShadow: string
+  borderColorPrimary: string
   borderColor: string
-  colorFocus: string
-  primaryBackgroundColorFocus: string
-  primaryColorFocus: string
+  borderColorDisabled: string
+  smallDimension: string
+  smallPadding: string
+  smallMinWidth: string
+  smallBoxShadow: string
   padding: string
-  iconMargin: string
 }
 
 export default (siteVars: SiteVariablesPrepared): SplitButtonVariables => {
   return {
     borderRadius: siteVars.borderRadius,
-    backgroundColorFocus: siteVars.colors.grey[200],
-    boxShadow: siteVars.shadowLevel1,
-    borderColor: siteVars.colors.grey[200],
-    colorFocus: siteVars.colors.grey[750],
-    primaryBackgroundColorFocus: siteVars.colors.brand[800],
-    primaryColorFocus: siteVars.colors.white,
+    borderColor: siteVars.colorScheme.default.border,
+    borderColorPrimary: siteVars.colors.brand[500],
+    borderColorDisabled: siteVars.colorScheme.brand.foregroundDisabled,
+    smallDimension: pxToRem(24),
+    smallPadding: `0 ${pxToRem(8)}`,
+    smallMinWidth: '0',
+    smallBoxShadow: 'none',
     padding: `0 ${pxToRem(16)}`,
-    iconMargin: `0 0 ${pxToRem(8)} 0`,
   }
 }