Toast

Overview

VyToast displays short-lived feedback in a styled card. It supports semantic colors, icons or avatars, actions, a close control, a countdown bar, swipe dismissal, and Sonner-style stacked layouts.

Every toast must be rendered inside the core ToastProvider. Use ToastViewport when the toast should float at a screen edge through the app's OverlayRoot.

Usage

<script setup lang="ts">
import { ToastProvider, ToastViewport } from '@vyui/core'
import { VyToast } from '@vyui/kit'
import { ref } from 'vue'

const visible = ref(true)
</script>

<template>
  <ToastProvider :duration="5000">
    <ToastViewport position="top" :style="{ top: '16px', zIndex: 60 }">
      <VyToast
        v-if="visible"
        title="Changes saved"
        description="Your profile is up to date."
        icon="i-lucide-circle-check"
        color="success"
        progress
        @update:open="visible = $event"
      />
    </ToastViewport>
  </ToastProvider>
</template>

VyToast opens when it mounts. Remove it when update:open(false) fires, whether dismissal came from the timer, close control, action, or swipe.

Actions

Pass button prop objects to actions. Tapping an action closes the toast after the button's own handler runs.

<script setup lang="ts">
import { ToastProvider } from '@vyui/core'
import { VyToast } from '@vyui/kit'

function undo() {
  console.log('Undo deletion')
}
</script>

<template>
  <ToastProvider :duration="0">
    <VyToast
      title="Conversation deleted"
      description="This action can be undone."
      color="warning"
      :actions="[
        { label: 'Undo', color: 'warning', variant: 'soft', onTap: undo },
      ]"
      :close="{ size: 'sm' }"
    />
  </ToastProvider>
</template>

Set the provider duration to 0 for a persistent toast. The kit component does not currently expose a per-toast duration prop.

Stacked toasts

One provider coordinates order, measured heights, and expanded state for every toast in the stack. Match stackFrom to the viewport's vertical edge.

<script setup lang="ts">
import { ToastProvider, ToastViewport } from '@vyui/core'
import { VyToast } from '@vyui/kit'
import { ref } from 'vue'

const toasts = ref([
  { id: 1, title: 'Build complete', description: 'Artifacts are ready.' },
  { id: 2, title: 'Preview deployed', description: 'The preview URL is live.' },
])

function remove(id: number) {
  toasts.value = toasts.value.filter(toast => toast.id !== id)
}
</script>

<template>
  <ToastProvider :duration="6000">
    <ToastViewport position="top" :style="{ top: '16px', zIndex: 60 }">
      <VyToast
        v-for="toast in toasts"
        :key="toast.id"
        stacked
        stack-from="top"
        swipe
        progress
        :title="toast.title"
        :description="toast.description"
        @update:open="open => !open && remove(toast.id)"
      />
    </ToastViewport>
  </ToastProvider>
</template>

The newest mounted toast is at the front. Tapping any stacked toast toggles the entire provider between its collapsed and expanded states. Auto-dismiss timers pause while expanded and restart when the stack collapses.

Progress color

The countdown bar is colored by the toast's color by default. Pass progress an object to color the bar independently — either a fixed color, or a function of the remaining fraction (1 at the start, 0 at dismissal) so the bar recolors as it drains.

<script setup lang="ts">
import { ToastProvider, ToastViewport } from '@vyui/core'
import { VyToast } from '@vyui/kit'
import { ref } from 'vue'

const shown = ref(0)
</script>

<template>
  <ToastProvider :duration="6000">
    <ToastViewport position="top" :style="{ top: '16px', zIndex: 60 }">
      <VyToast
        :key="shown"
        color="neutral"
        title="Saving changes…"
        description="Watch the bar go green → amber → red as it drains."
        :progress="{ color: (p) => p > 0.5 ? 'success' : p > 0.25 ? 'warning' : 'error' }"
        :close="false"
      />
    </ToastViewport>
  </ToastProvider>
</template>

Custom content

Named slots replace the corresponding built-in regions.

<ToastProvider :duration="0">
  <VyToast color="info" :close="false">
    <template #leading="{ iconColor }">
      <VyIcon name="i-lucide-cloud" :color="iconColor" />
    </template>

    <template #title>
      <text class="text-sm font-semibold text-neutral-900">Uploading release</text>
    </template>

    <template #description>
      <text class="text-sm text-neutral-500">12 of 20 files complete</text>
    </template>
  </VyToast>
</ToastProvider>

Features and behavior

• icon takes precedence over avatar in the leading region.
• orientation="vertical" places actions below the copy; horizontal places them after the copy.
• close defaults to true. Pass a partial ButtonProps object to customize the built-in button.
• The close icon resolves from closeIcon, then appConfig.ui.icons.close, then i-lucide-x.
• progress renders only when the provider's resolved duration is greater than 0.
• swipe dismisses after a horizontal drag crosses 45% of the measured width or a fling reaches 600 px/s.
• swipeDirection can allow both horizontal directions or constrain dismissal to one side.
• Collapsed stacks show at most three cards; deeper cards remain mounted but transparent.
• The declared default slot is not currently rendered by the kit template. Use the named slots for custom content.
• The custom actions slot is currently invoked at both the vertical and horizontal insertion points. Prefer the actions prop until that duplication is resolved.

Props

Color defaults to primary, secondary, success, info, warning, error, or neutral, and supports consumer registry extensions.

The kit wrapper does not expose the core root's open, defaultOpen, duration, or type props. Control lifetime by mounting the toast, configure duration on ToastProvider, and use core primitives directly when those lower-level controls are required.

Emits

Slots

Provider and viewport

ToastProvider and ToastViewport are unstyled primitives exported by @vyui/core.

ToastProvider props

ToastViewport props

The viewport is a content-sized strip, so taps outside the toast area pass through to the app.

Styling and theming

Override globally through appConfig.ui.toast or locally with ui.

The theme combines color, orientation, and an internal title-present state. Semantic color affects the leading icon and progress bar; the default card surface remains white with neutral text and border colors.

Accessibility

Core ToastRoot exposes foreground toasts with an alert role description and background toasts as summaries. The kit wrapper always uses the core foreground default. ToastTitle is exposed as a heading, and the built-in close control is labeled “Close” with button semantics.

Generated actions are wrapped in ToastAction, but the kit currently passes an empty altText. Ensure each VyButton action has a clear visible label and add application-level announcement handling for critical foreground messages: the current Lynx alert mapping identifies the role but does not itself call the runtime announcement API.

Keep durations long enough to read and act on the message. Use duration="0" on the provider for important content that must remain until explicitly dismissed.

Platform notes

• ToastViewport paints through the app-root OverlayRoot; include that root in the application shell for floating toasts.
• Lynx has no DOM teleport, so the overlay store preserves provider context while moving viewport content out of clipped ancestors.
• Swipe movement runs on the Lynx main thread and requires a measured toast width for distance-based dismissal; velocity-based dismissal can still work before measurement.
• Stacking transforms run on an outer shell while swipe transforms run on an inner layer, preventing the two animations from overwriting each other.
• Lynx SVG does not inherit currentColor, so the component resolves the leading icon color to an explicit hex value.
• The default theme is light-mode-only.

Related components

• Alert for persistent inline feedback.
• ActionSheet for choosing an action.
• Progress for persistent task progress.