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MIGRATION.md

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Button Migration

Migration from v0 Button

In the short term, the new Button control is named ButtonV1 while it clashes with the existing older control. Once we deprecate the old control, it will be renamed to Button. It may be useful to rename the control to Button using the import syntax to simplify the rename:

import { ButtonV1 as Button } from '@fluentui-react-native/button'

Component renames

Primary and Stealth buttons now map to Button:

v0 Button v1 Button
<Button content="Hello, world" /> <Button>Hello, world</Button>
<PrimaryButton content="Hello, world" /> <Button appearance='primary'>Hello, world</Button>
<StealthButton content="Hello, world" /> <Button appearance='subtle'>Hello, world</Button>

Props that remain as is

  • Any props that are part of ViewProps
  • children
  • componentRef
  • icon
  • onClick
  • testID
  • tooltip

Props no longer supported with an equivalent functionality in v1 Button

  • content => Pass the content as children instead
  • endIcon => Use after value for iconPosition prop and pass icon information into icon prop instead
  • startIcon => Use before value for iconPosition prop and pass icon information into icon prop instead

Props no longer supported without an equivalent functionality in v1 Button

  • Cannot use both startIcon and endIcon at the same time in v1

Tokens that remain as is

  • Any props that are part of FontTokens, IForegroundColorTokens, IBackgroundColorTokens, IBorderTokens
  • iconColor
  • iconSize
  • iconWeight

Tokens no longer supported with an equivalent functionality in v1 Button

  • contentPadding => Set on style property of root property under slotProps in compose API
  • iconColorHovered => Use iconColor token under the hovered state token
  • iconColorPressed => Use iconColor token under the pressed state token

Tokens no longer supported without an equivalent functionality in v1 Button

  • contentPaddingFocused => Removed in favor of using native based focus visuals
  • wrapperBorderColor => Removed in favor of using native based focus visuals

Slots no longer supported with an equivalent functionality in v1 Button

  • borderWrapper has been removed in favor of using native focus visuals. Use root instead.
  • stack has been removed. Use root instead.

Updating ThemeProvider

If you are using the older theme provider ThemeProvider from @uifabricshared/theming-react-native, you will need to update the ThemeProvider to pull from @fluentui-react-native/theme to have the control work properly with themes. Please see this page for guidance.

Migrating customized Buttons

Please see this page for guidance on how to move from the old customize API to the new one.

If you were using PrimaryButton or StealthButton, any color customizations will need to be applied under the primary and subtle tokens, respectively:

const Custom = StealthButton.customize({
  tokens: {
    borderWidth: 0,
    color: 'white',
    backgroundColor: 'red',
  }
});

would become

const Custom = Button.customize({
  subtle: {
    borderWidth: 0,
    color: 'white',
    backgroundColor: 'red',
  }
});

Migrating composed Buttons

Please see this page for guidance on how to move from the old customize API to the new one.

Porting from FluentUI v9 Button

The FURN button cannot be used in place of a FluentUI button - these buttons are intended to be used on their respective platforms. See this porting guide for general guidance on coming from FluentUI to FURN.

Props that remain as is

  • children
  • disabled
  • icon
  • onClick
  • testID
  • tooltip

Props renamed to align with ReactNative

No Button specific renames.

Prop differences due to technical differences and limitations

  • icon takes in a props object instead of the JSX element itself. This is due to framework differences from FluentUI.
  • iconOnly must be supplied for components do not have any text content for them to be styled correctly. This is due to framework differences from FluentUI.
  • ref is exposed as componentRef, similar to previous versions of FluentUI. This is due to framework differences from FluentUI.

Other Prop differences

  • appearance does not include values for transparent or outline as neither currently are used by native platforms.
  • iconPosition uses before and after as values instead of left and right for better right to left support.

Property mapping

v0 Button v1 Button
componentRef componentRef
content
disabled disabled
endIcon iconPosition
icon icon
onClick onClick
statIcon iconPosition
testId testId
tooltip tooltip