feat(Table): add v-model:sort prop (#803)

Co-authored-by: Benjamin Canac <canacb1@gmail.com>

docs/components/content/examples/TableExampleReactiveSorting.vue

@@ -0,0 +1,69 @@
+<script setup>
+const sort = ref({
+  column: 'name',
+  direction: 'desc'
+})
+
+const columns = [{
+  key: 'id',
+  label: 'ID'
+}, {
+  key: 'name',
+  label: 'Name',
+  sortable: true
+}, {
+  key: 'title',
+  label: 'Title',
+  sortable: true
+}, {
+  key: 'email',
+  label: 'Email'
+}, {
+  key: 'role',
+  label: 'Role',
+  sortable: true,
+  direction: 'desc'
+}]
+
+const people = [{
+  id: 1,
+  name: 'Lindsay Walton',
+  title: 'Front-end Developer',
+  email: 'lindsay.walton@example.com',
+  role: 'Member'
+}, {
+  id: 2,
+  name: 'Courtney Henry',
+  title: 'Designer',
+  email: 'courtney.henry@example.com',
+  role: 'Admin'
+}, {
+  id: 3,
+  name: 'Tom Cook',
+  title: 'Director of Product',
+  email: 'tom.cook@example.com',
+  role: 'Member'
+}, {
+  id: 4,
+  name: 'Whitney Francis',
+  title: 'Copywriter',
+  email: 'whitney.francis@example.com',
+  role: 'Admin'
+}, {
+  id: 5,
+  name: 'Leonard Krasner',
+  title: 'Senior Designer',
+  email: 'leonard.krasner@example.com',
+  role: 'Owner'
+}, {
+  id: 6,
+  name: 'Floyd Miles',
+  title: 'Principal Designer',
+  email: 'floyd.miles@example.com',
+  role: 'Member'
+}]
+</script>
+
+<template>
+  <UTable v-model:sort="sort" :columns="columns" :rows="people" />
+</template>

docs/content/4.data/1.table.md

@@ -66,7 +66,7 @@ componentProps:
 ---
 ::
 
-You can specify the default direction of each column through the `direction` property. It can be either `asc` or `desc` and defaults to `asc`.
+You may specify the default direction of each column through the `direction` property. It can be either `asc` or `desc`, but it will default to `asc`.
 
 You can specify a default sort for the table through the `sort` prop. It's an object with the following properties:
 
@@ -156,6 +156,44 @@ Use the `sort-desc-icon` prop to set a different icon or change it globally in `
 You can also customize the entire header cell, read more in the [Slots](#slots) section.
 ::
 
+#### Reactive sorting :u-badge{label="New" class="align-middle ml-2 !rounded-full" variant="subtle"}
+
+Sometimes you will want to fetch new data depending on the sorted column and direction. You can use the `v-model:sort` to automatically update the `ref` reactive element every time the sorting changes on the Table. You may also use `@update:sort` to call your own function with the sorting data.
+
+For example, we can take advantage of `useLazyRefresh` computed URL to automatically fetch the data depending on the sorting column and direction every time the `sort` reactive element changes.
+
+```vue
+<script setup>
+// Ensure it uses `ref` instead of `reactive`.
+const sort = ref({
+  column: 'name',
+  direction: 'desc'
+})
+
+const columns = [...]
+
+const { data, pending } = useLazyFetch(() => {
+  return `/api/users?orderBy=${sort.value.column}&order=${sort.value.direction}`
+})
+</script>
+
+<template>
+  <UTable v-model:sort="sort" :loading="pending" :columns="columns" :rows="data" />
+</template>
+```
+
+The initial value of `sort` will be respected as the initial sort column and direction, as well as each column default sorting direction.
+
+::component-example{class="grid"}
+---
+padding: false
+overflowClass: 'overflow-x-auto'
+component: 'table-example-reactive-sorting'
+componentProps:
+  class: 'flex-1'
+---
+::
+
 ### Selectable
 
 Use a `v-model` to make the table selectable. The `v-model` will be an array of the selected rows.

src/runtime/components/data/Table.vue

@@ -152,7 +152,7 @@ export default defineComponent({
       default: undefined
     }
   },
-  emits: ['update:modelValue'],
+  emits: ['update:modelValue', 'update:sort'],
   setup (props, { emit, attrs: $attrs }) {
     const { ui, attrs } = useUI('table', toRef(props, 'ui'), config, toRef(props, 'class'))
 
@@ -160,6 +160,8 @@ export default defineComponent({
 
     const sort = ref(defu({}, props.sort, { column: null, direction: 'asc' }))
 
+    const defaultSort = { column: sort.value.column, direction: null }
+
     const rows = computed(() => {
       if (!sort.value?.column) {
         return props.rows
@@ -225,13 +227,15 @@ export default defineComponent({
         const direction = !column.direction || column.direction === 'asc' ? 'desc' : 'asc'
 
         if (sort.value.direction === direction) {
-          sort.value = defu({}, props.sort, { column: null, direction: 'asc' })
+          sort.value = defu({}, defaultSort, { column: null, direction: 'asc' })
         } else {
           sort.value.direction = sort.value.direction === 'asc' ? 'desc' : 'asc'
         }
       } else {
         sort.value = { column: column.key, direction: column.direction || 'asc' }
       }
+
+      emit('update:sort', sort.value)
     }
 
     function onSelect (row) {

src/runtime/components/forms/Input.vue

@@ -87,7 +87,7 @@ export default defineComponent({
     },
     autofocusDelay: {
       type: Number,
-      default: 100,
+      default: 100
     },
     icon: {
       type: String,