New component library based on ALF (#2459)

* Install on native as well

* Add button and link components

* Comments

* Use new prop

* Add some form elements

* Add labels to input

* Fix line height, add suffix

* Date inputs

* Autofill styles

* Clean up InputDate types

* Improve types for InputText, value handling

* Enforce a11y props on buttons

* Add Dialog, Portal

* Dialog contents

* Native dialog

* Clean up

* Fix animations

* Improvements to web modal, exiting still broken

* Clean up dialog types

* Add Prompt, Dialog refinement, mobile refinement

* Integrate new design tokens, reorg storybook

* Button colors

* Dim mode

* Reorg

* Some styles

* Toggles

* Improve a11y

* Autosize dialog, handle max height, Dialog.ScrolLView not working

* Try to use BottomSheet's own APIs

* Scrollable dialogs

* Add web shadow

* Handle overscroll

* Styles

* Dialog text input

* Shadows

* Button focus states

* Button pressed states

* Gradient poc

* Gradient colors and hovers

* Add hrefAttrs to Link

* Some more a11y

* Toggle invalid states

* Update dialog descriptions for demo

* Icons

* WIP Toggle cleanup

* Refactor toggle to not rely on immediate children

* Make Toggle controlled

* Clean up Toggles storybook

* ToggleButton styles

* Improve a11y labels

* ToggleButton hover darkmode

* Some i18n

* Refactor input

* Allow extension of input

* Remove old input

* Improve icons, add CalendarDays

* Refactor DateField, web done

* Add label example

* Clean up old InputDate, DateField android, text area example

* Consistent imports

* Button context, icons

* Add todo

* Add closeAllDialogs control

* Alignment

* Expand color palette

* Hitslops, add shortcut to Storybook in dev

* Fix multiline on ios

* Mark dialog close button as unused

1 files changed, 507 insertions, 0 deletions

diff --git a/src/components/Button.tsx b/src/components/Button.tsx
new file mode 100644
index 000000000..d2100f0b4
--- /dev/null
+++ b/src/components/Button.tsx
@@ -0,0 +1,507 @@
+import React from 'react'
+import {
+  Pressable,
+  Text,
+  PressableProps,
+  TextProps,
+  ViewStyle,
+  AccessibilityProps,
+  View,
+  TextStyle,
+  StyleSheet,
+} from 'react-native'
+import LinearGradient from 'react-native-linear-gradient'
+
+import {useTheme, atoms as a, tokens, web, native} from '#/alf'
+import {Props as SVGIconProps} from '#/components/icons/common'
+
+export type ButtonVariant = 'solid' | 'outline' | 'ghost' | 'gradient'
+export type ButtonColor =
+  | 'primary'
+  | 'secondary'
+  | 'negative'
+  | 'gradient_sky'
+  | 'gradient_midnight'
+  | 'gradient_sunrise'
+  | 'gradient_sunset'
+  | 'gradient_nordic'
+  | 'gradient_bonfire'
+export type ButtonSize = 'small' | 'large'
+export type VariantProps = {
+  /**
+   * The style variation of the button
+   */
+  variant?: ButtonVariant
+  /**
+   * The color of the button
+   */
+  color?: ButtonColor
+  /**
+   * The size of the button
+   */
+  size?: ButtonSize
+}
+
+export type ButtonProps = React.PropsWithChildren<
+  Pick<PressableProps, 'disabled' | 'onPress'> &
+    AccessibilityProps &
+    VariantProps & {
+      label: string
+    }
+>
+export type ButtonTextProps = TextProps & VariantProps & {disabled?: boolean}
+
+const Context = React.createContext<
+  VariantProps & {
+    hovered: boolean
+    focused: boolean
+    pressed: boolean
+    disabled: boolean
+  }
+>({
+  hovered: false,
+  focused: false,
+  pressed: false,
+  disabled: false,
+})
+
+export function useButtonContext() {
+  return React.useContext(Context)
+}
+
+export function Button({
+  children,
+  variant,
+  color,
+  size,
+  label,
+  disabled = false,
+  ...rest
+}: ButtonProps) {
+  const t = useTheme()
+  const [state, setState] = React.useState({
+    pressed: false,
+    hovered: false,
+    focused: false,
+  })
+
+  const onPressIn = React.useCallback(() => {
+    setState(s => ({
+      ...s,
+      pressed: true,
+    }))
+  }, [setState])
+  const onPressOut = React.useCallback(() => {
+    setState(s => ({
+      ...s,
+      pressed: false,
+    }))
+  }, [setState])
+  const onHoverIn = React.useCallback(() => {
+    setState(s => ({
+      ...s,
+      hovered: true,
+    }))
+  }, [setState])
+  const onHoverOut = React.useCallback(() => {
+    setState(s => ({
+      ...s,
+      hovered: false,
+    }))
+  }, [setState])
+  const onFocus = React.useCallback(() => {
+    setState(s => ({
+      ...s,
+      focused: true,
+    }))
+  }, [setState])
+  const onBlur = React.useCallback(() => {
+    setState(s => ({
+      ...s,
+      focused: false,
+    }))
+  }, [setState])
+
+  const {baseStyles, hoverStyles, focusStyles} = React.useMemo(() => {
+    const baseStyles: ViewStyle[] = []
+    const hoverStyles: ViewStyle[] = []
+    const light = t.name === 'light'
+
+    if (color === 'primary') {
+      if (variant === 'solid') {
+        if (!disabled) {
+          baseStyles.push({
+            backgroundColor: t.palette.primary_500,
+          })
+          hoverStyles.push({
+            backgroundColor: t.palette.primary_600,
+          })
+        } else {
+          baseStyles.push({
+            backgroundColor: t.palette.primary_700,
+          })
+        }
+      } else if (variant === 'outline') {
+        baseStyles.push(a.border, t.atoms.bg, {
+          borderWidth: 1,
+        })
+
+        if (!disabled) {
+          baseStyles.push(a.border, {
+            borderColor: tokens.color.blue_500,
+          })
+          hoverStyles.push(a.border, {
+            backgroundColor: light
+              ? t.palette.primary_50
+              : t.palette.primary_950,
+          })
+        } else {
+          baseStyles.push(a.border, {
+            borderColor: light ? tokens.color.blue_200 : tokens.color.blue_900,
+          })
+        }
+      } else if (variant === 'ghost') {
+        if (!disabled) {
+          baseStyles.push(t.atoms.bg)
+          hoverStyles.push({
+            backgroundColor: light
+              ? t.palette.primary_100
+              : t.palette.primary_900,
+          })
+        }
+      }
+    } else if (color === 'secondary') {
+      if (variant === 'solid') {
+        if (!disabled) {
+          baseStyles.push({
+            backgroundColor: light
+              ? tokens.color.gray_100
+              : tokens.color.gray_900,
+          })
+          hoverStyles.push({
+            backgroundColor: light
+              ? tokens.color.gray_200
+              : tokens.color.gray_950,
+          })
+        } else {
+          baseStyles.push({
+            backgroundColor: light
+              ? tokens.color.gray_300
+              : tokens.color.gray_950,
+          })
+        }
+      } else if (variant === 'outline') {
+        baseStyles.push(a.border, t.atoms.bg, {
+          borderWidth: 1,
+        })
+
+        if (!disabled) {
+          baseStyles.push(a.border, {
+            borderColor: light ? tokens.color.gray_500 : tokens.color.gray_500,
+          })
+          hoverStyles.push(a.border, t.atoms.bg_contrast_50)
+        } else {
+          baseStyles.push(a.border, {
+            borderColor: light ? tokens.color.gray_200 : tokens.color.gray_800,
+          })
+        }
+      } else if (variant === 'ghost') {
+        if (!disabled) {
+          baseStyles.push(t.atoms.bg)
+          hoverStyles.push({
+            backgroundColor: light
+              ? tokens.color.gray_100
+              : tokens.color.gray_900,
+          })
+        }
+      }
+    } else if (color === 'negative') {
+      if (variant === 'solid') {
+        if (!disabled) {
+          baseStyles.push({
+            backgroundColor: t.palette.negative_400,
+          })
+          hoverStyles.push({
+            backgroundColor: t.palette.negative_500,
+          })
+        } else {
+          baseStyles.push({
+            backgroundColor: t.palette.negative_600,
+          })
+        }
+      } else if (variant === 'outline') {
+        baseStyles.push(a.border, t.atoms.bg, {
+          borderWidth: 1,
+        })
+
+        if (!disabled) {
+          baseStyles.push(a.border, {
+            borderColor: t.palette.negative_400,
+          })
+          hoverStyles.push(a.border, {
+            backgroundColor: light
+              ? t.palette.negative_50
+              : t.palette.negative_975,
+          })
+        } else {
+          baseStyles.push(a.border, {
+            borderColor: light
+              ? t.palette.negative_200
+              : t.palette.negative_900,
+          })
+        }
+      } else if (variant === 'ghost') {
+        if (!disabled) {
+          baseStyles.push(t.atoms.bg)
+          hoverStyles.push({
+            backgroundColor: light
+              ? t.palette.negative_100
+              : t.palette.negative_950,
+          })
+        }
+      }
+    }
+
+    if (size === 'large') {
+      baseStyles.push({paddingVertical: 15}, a.px_2xl, a.rounded_sm, a.gap_sm)
+    } else if (size === 'small') {
+      baseStyles.push({paddingVertical: 9}, a.px_md, a.rounded_sm, a.gap_sm)
+    }
+
+    return {
+      baseStyles,
+      hoverStyles,
+      focusStyles: [
+        ...hoverStyles,
+        {
+          outline: 0,
+        } as ViewStyle,
+      ],
+    }
+  }, [t, variant, color, size, disabled])
+
+  const {gradientColors, gradientHoverColors, gradientLocations} =
+    React.useMemo(() => {
+      const colors: string[] = []
+      const hoverColors: string[] = []
+      const locations: number[] = []
+      const gradient = {
+        primary: tokens.gradients.sky,
+        secondary: tokens.gradients.sky,
+        negative: tokens.gradients.sky,
+        gradient_sky: tokens.gradients.sky,
+        gradient_midnight: tokens.gradients.midnight,
+        gradient_sunrise: tokens.gradients.sunrise,
+        gradient_sunset: tokens.gradients.sunset,
+        gradient_nordic: tokens.gradients.nordic,
+        gradient_bonfire: tokens.gradients.bonfire,
+      }[color || 'primary']
+
+      if (variant === 'gradient') {
+        colors.push(...gradient.values.map(([_, color]) => color))
+        hoverColors.push(...gradient.values.map(_ => gradient.hover_value))
+        locations.push(...gradient.values.map(([location, _]) => location))
+      }
+
+      return {
+        gradientColors: colors,
+        gradientHoverColors: hoverColors,
+        gradientLocations: locations,
+      }
+    }, [variant, color])
+
+  const context = React.useMemo(
+    () => ({
+      ...state,
+      variant,
+      color,
+      size,
+      disabled: disabled || false,
+    }),
+    [state, variant, color, size, disabled],
+  )
+
+  return (
+    <Pressable
+      role="button"
+      accessibilityHint={undefined} // optional
+      {...rest}
+      aria-label={label}
+      aria-pressed={state.pressed}
+      accessibilityLabel={label}
+      disabled={disabled || false}
+      accessibilityState={{
+        disabled: disabled || false,
+      }}
+      style={[
+        a.flex_row,
+        a.align_center,
+        a.overflow_hidden,
+        ...baseStyles,
+        ...(state.hovered || state.pressed ? hoverStyles : []),
+        ...(state.focused ? focusStyles : []),
+      ]}
+      onPressIn={onPressIn}
+      onPressOut={onPressOut}
+      onHoverIn={onHoverIn}
+      onHoverOut={onHoverOut}
+      onFocus={onFocus}
+      onBlur={onBlur}>
+      {variant === 'gradient' && (
+        <LinearGradient
+          colors={
+            state.hovered || state.pressed || state.focused
+              ? gradientHoverColors
+              : gradientColors
+          }
+          locations={gradientLocations}
+          start={{x: 0, y: 0}}
+          end={{x: 1, y: 1}}
+          style={[a.absolute, a.inset_0]}
+        />
+      )}
+      <Context.Provider value={context}>
+        {typeof children === 'string' ? (
+          <ButtonText>{children}</ButtonText>
+        ) : (
+          children
+        )}
+      </Context.Provider>
+    </Pressable>
+  )
+}
+
+export function useSharedButtonTextStyles() {
+  const t = useTheme()
+  const {color, variant, disabled, size} = useButtonContext()
+  return React.useMemo(() => {
+    const baseStyles: TextStyle[] = []
+    const light = t.name === 'light'
+
+    if (color === 'primary') {
+      if (variant === 'solid') {
+        if (!disabled) {
+          baseStyles.push({color: t.palette.white})
+        } else {
+          baseStyles.push({color: t.palette.white, opacity: 0.5})
+        }
+      } else if (variant === 'outline') {
+        if (!disabled) {
+          baseStyles.push({
+            color: light ? t.palette.primary_600 : t.palette.primary_500,
+          })
+        } else {
+          baseStyles.push({color: t.palette.primary_600, opacity: 0.5})
+        }
+      } else if (variant === 'ghost') {
+        if (!disabled) {
+          baseStyles.push({color: t.palette.primary_600})
+        } else {
+          baseStyles.push({color: t.palette.primary_600, opacity: 0.5})
+        }
+      }
+    } else if (color === 'secondary') {
+      if (variant === 'solid' || variant === 'gradient') {
+        if (!disabled) {
+          baseStyles.push({
+            color: light ? tokens.color.gray_700 : tokens.color.gray_100,
+          })
+        } else {
+          baseStyles.push({
+            color: light ? tokens.color.gray_400 : tokens.color.gray_700,
+          })
+        }
+      } else if (variant === 'outline') {
+        if (!disabled) {
+          baseStyles.push({
+            color: light ? tokens.color.gray_600 : tokens.color.gray_300,
+          })
+        } else {
+          baseStyles.push({
+            color: light ? tokens.color.gray_400 : tokens.color.gray_700,
+          })
+        }
+      } else if (variant === 'ghost') {
+        if (!disabled) {
+          baseStyles.push({
+            color: light ? tokens.color.gray_600 : tokens.color.gray_300,
+          })
+        } else {
+          baseStyles.push({
+            color: light ? tokens.color.gray_400 : tokens.color.gray_600,
+          })
+        }
+      }
+    } else if (color === 'negative') {
+      if (variant === 'solid' || variant === 'gradient') {
+        if (!disabled) {
+          baseStyles.push({color: t.palette.white})
+        } else {
+          baseStyles.push({color: t.palette.white, opacity: 0.5})
+        }
+      } else if (variant === 'outline') {
+        if (!disabled) {
+          baseStyles.push({color: t.palette.negative_400})
+        } else {
+          baseStyles.push({color: t.palette.negative_400, opacity: 0.5})
+        }
+      } else if (variant === 'ghost') {
+        if (!disabled) {
+          baseStyles.push({color: t.palette.negative_400})
+        } else {
+          baseStyles.push({color: t.palette.negative_400, opacity: 0.5})
+        }
+      }
+    } else {
+      if (!disabled) {
+        baseStyles.push({color: t.palette.white})
+      } else {
+        baseStyles.push({color: t.palette.white, opacity: 0.5})
+      }
+    }
+
+    if (size === 'large') {
+      baseStyles.push(
+        a.text_md,
+        web({paddingBottom: 1}),
+        native({marginTop: 2}),
+      )
+    } else {
+      baseStyles.push(
+        a.text_md,
+        web({paddingBottom: 1}),
+        native({marginTop: 2}),
+      )
+    }
+
+    return StyleSheet.flatten(baseStyles)
+  }, [t, variant, color, size, disabled])
+}
+
+export function ButtonText({children, style, ...rest}: ButtonTextProps) {
+  const textStyles = useSharedButtonTextStyles()
+
+  return (
+    <Text {...rest} style={[a.font_bold, a.text_center, textStyles, style]}>
+      {children}
+    </Text>
+  )
+}
+
+export function ButtonIcon({
+  icon: Comp,
+}: {
+  icon: React.ComponentType<SVGIconProps>
+}) {
+  const {size} = useButtonContext()
+  const textStyles = useSharedButtonTextStyles()
+
+  return (
+    <View style={[a.z_20]}>
+      <Comp
+        size={size === 'large' ? 'md' : 'sm'}
+        style={[{color: textStyles.color, pointerEvents: 'none'}]}
+      />
+    </View>
+  )
+}