first commit

packages/preset-native/src/index.ts

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+import { defineComponent, h, type PropType } from 'vue'
+import type { RouteLocationRaw } from 'vue-router'
+import { useNativeRouter } from '@native-vue-router/core'
+import './style.css'
+
+export type NativePlatform = 'ios' | 'android' | 'desktop'
+
+export function detectNativePlatform(): NativePlatform {
+  if (typeof navigator === 'undefined') return 'desktop'
+  if (/iPad|iPhone|iPod|Macintosh/.test(navigator.userAgent) && ('ontouchend' in document)) return 'ios'
+  if (/Android/.test(navigator.userAgent)) return 'android'
+  return 'desktop'
+}
+
+export const NativeBackButton = defineComponent({
+  name: 'NativeBackButton',
+  props: { label: { type: String, default: 'Back' } },
+  setup(props) {
+    const native = useNativeRouter()
+    return () => h('button', {
+      type: 'button',
+      class: 'nvr-native-back',
+      'aria-label': props.label,
+      onClick: () => void native.pop(),
+    }, [h('span', { 'aria-hidden': 'true' }, '‹'), h('span', props.label)])
+  },
+})
+
+export interface NativeTabItem {
+  label: string
+  to: RouteLocationRaw
+  icon?: string
+}
+
+export const NativeTabBar = defineComponent({
+  name: 'NativeTabBar',
+  props: {
+    items: { type: Array as PropType<NativeTabItem[]>, required: true },
+  },
+  setup(props) {
+    const native = useNativeRouter()
+    return () => h('nav', { class: 'nvr-native-tabs', 'aria-label': 'Primary navigation' },
+      props.items.map((item) => {
+        const active = native.router.currentRoute.value.path === native.router.resolve(item.to).path
+        const href = native.router.resolve(item.to).href
+        return h('a', {
+          href,
+          class: ['nvr-native-tab', active && 'nvr-native-tab--active'],
+          'aria-current': active ? 'page' : undefined,
+          onClick: (event: MouseEvent) => {
+            if (event.defaultPrevented || event.button !== 0 || event.metaKey || event.ctrlKey || event.shiftKey || event.altKey) return
+            event.preventDefault()
+            if (active) return
+            void native.sibling(item.to, { replace: true })
+          },
+        }, [
+          h('span', { class: 'nvr-native-tab__icon', 'aria-hidden': 'true' }, item.icon ?? '•'),
+          h('span', item.label),
+        ])
+      }))
+  },
+})
+
+export const nativeMotionTokens = {
+  ios: { edgeWidth: 28, commitThreshold: 0.36 },
+  android: { edgeWidth: 24, commitThreshold: 0.32 },
+  desktop: { edgeWidth: 18, commitThreshold: 0.4 },
+} as const