feat(Toast): new component (#50)

src/runtime/components/Toaster.vue

@@ -0,0 +1,116 @@
+<script lang="ts">
+import { tv, type VariantProps } from 'tailwind-variants'
+import type { ToastProviderProps } from 'radix-vue'
+import type { AppConfig } from '@nuxt/schema'
+import _appConfig from '#build/app.config'
+import theme from '#build/ui/toaster'
+
+const appConfig = _appConfig as AppConfig & { ui: { toaster: Partial<typeof theme> } }
+
+const toaster = tv({ extend: tv(theme), ...(appConfig.ui?.toaster || {}) })
+
+type ToasterVariants = VariantProps<typeof toaster>
+
+export interface ToasterProps extends Omit<ToastProviderProps, 'swipeDirection'> {
+  position?: ToasterVariants['position']
+  expand?: boolean
+  class?: any
+  ui?: Partial<typeof toaster.slots>
+}
+</script>
+
+<script setup lang="ts">
+import { ref, computed } from 'vue'
+import { ToastProvider, ToastViewport, useForwardProps } from 'radix-vue'
+import { reactivePick } from '@vueuse/core'
+import { useToast } from '#imports'
+import { UToast } from '#components'
+import { omit } from '#ui/utils'
+
+const props = withDefaults(defineProps<ToasterProps>(), { expand: true })
+
+const providerProps = useForwardProps(reactivePick(props, 'duration', 'label', 'swipeThreshold'))
+
+const { toasts, remove } = useToast()
+
+const swipeDirection = computed(() => {
+  switch (props.position) {
+  case 'top-center':
+    return 'up'
+  case 'top-right':
+  case 'bottom-right':
+    return 'right'
+  case 'bottom-center':
+    return 'down'
+  case 'top-left':
+  case 'bottom-left':
+    return 'left'
+  }
+  return 'right'
+})
+
+const ui = computed(() => tv({ extend: toaster, slots: props.ui })({
+  position: props.position,
+  swipeDirection: swipeDirection.value
+}))
+
+function onUpdateOpen (value: boolean, id: string | number) {
+  if (value) {
+    return
+  }
+
+  remove(id)
+}
+
+const hovered = ref(false)
+const expanded = computed(() => props.expand || hovered.value)
+
+const refs = ref<{ height: number }[]>([])
+
+const height = computed(() => refs.value.reduce((acc, { height }) => acc + height + 16, 0) - 16)
+const frontHeight = computed(() => refs.value[refs.value.length - 1]?.height || 0)
+
+function getOffset (index: number) {
+  return refs.value.slice(index + 1).reduce((acc, { height }) => acc + height + 16, 0)
+}
+</script>
+
+<template>
+  <ToastProvider :swipe-direction="swipeDirection" v-bind="providerProps">
+    <UToast
+      v-for="(toast, index) of toasts"
+      :key="toast.id"
+      ref="refs"
+      v-bind="omit(toast, ['id'])"
+      :data-expanded="expanded"
+      :data-front="!expanded && index === toasts.length - 1"
+      :style="{
+        '--index': (index - toasts.length) + toasts.length,
+        '--before': toasts.length - 1 - index,
+        '--offset': getOffset(index),
+        '--scale': expanded ? '1' : 'calc(1 - var(--before) * var(--scale-factor))',
+        '--translate': expanded ? 'calc(var(--offset) * var(--translate-factor))' : 'calc(var(--before) * var(--gap))',
+        '--transform': 'translateY(var(--translate)) scale(var(--scale))'
+      }"
+      :class="[ui.base(), {
+        'cursor-pointer': !!toast.click
+      }]"
+      @update:open="onUpdateOpen($event, toast.id)"
+      @click="toast.click && toast.click(toast)"
+    />
+
+    <ToastViewport
+      :data-expanded="expanded"
+      :class="ui.viewport({ class: props.class })"
+      :style="{
+        '--scale-factor': '0.05',
+        '--translate-factor': position?.startsWith('top') ? '1px' : '-1px',
+        '--gap': position?.startsWith('top') ? '16px' : '-16px',
+        '--front-height': `${frontHeight}px`,
+        '--height': `${height}px`
+      }"
+      @mouseenter="hovered = true"
+      @mouseleave="hovered = false"
+    />
+  </ToastProvider>
+</template>