fix(VTreeview): select & activate issues

packages/vuetify/src/components/VList/VListItem.sass

@@ -319,7 +319,7 @@
   .v-list-group__items .v-list-item
     padding-inline-start: calc(#{$base-padding} + var(--indent-padding)) !important
 
-  .v-list-group__header.v-list-item--active
+  .v-list-group__header:not(.v-treeview-item--activetable-group-activator).v-list-item--active
     &:not(:focus-visible)
       .v-list-item__overlay
         opacity: 0

packages/vuetify/src/components/VList/VListItem.tsx

@@ -34,7 +34,7 @@ import { deprecate, EventProp, genericComponent, propsFactory, useRender } from
 import type { PropType } from 'vue'
 import type { RippleDirectiveBinding } from '@/directives/ripple'
 
-type ListItemSlot = {
+export type ListItemSlot = {
   isActive: boolean
   isSelected: boolean
   isIndeterminate: boolean
@@ -359,6 +359,8 @@ export const VListItem = genericComponent<VListItemSlots>()({
     })
 
     return {
+      activate,
+      isActivated,
       isGroupActivator,
       isSelected,
       list,

packages/vuetify/src/components/VList/__tests__/VListGroup.spec.cy.tsx

@@ -17,7 +17,7 @@ describe('VListGroup', () => {
 
         <VList>
           <VListGroup>
-            {{ activator: props => <VListItem { ...props } title="Group" /> }}
+            {{ activator: props => <VListItem isOpen={ props.isOpen } value={ props.nestedId } title="Group" /> }}
           </VListGroup>
         </VList>
       </CenteredGrid>

packages/vuetify/src/labs/VTreeview/VTreeview.tsx

@@ -34,7 +34,7 @@ export const makeVTreeviewProps = propsFactory({
   ...omit(makeVListProps({
     collapseIcon: '$treeviewCollapse',
     expandIcon: '$treeviewExpand',
-    selectStrategy: 'independent' as const,
+    selectStrategy: 'classic' as const,
     openStrategy: 'multiple' as const,
     slim: true,
   }), ['nav']),

packages/vuetify/src/labs/VTreeview/VTreeviewChildren.tsx

@@ -4,13 +4,14 @@ import { VTreeviewItem } from './VTreeviewItem'
 import { VCheckboxBtn } from '@/components/VCheckbox'
 
 // Utilities
-import { shallowRef } from 'vue'
+import { shallowRef, withModifiers } from 'vue'
 import { genericComponent, propsFactory } from '@/util'
 
 // Types
 import type { PropType } from 'vue'
 import type { InternalListItem } from '@/components/VList/VList'
 import type { VListItemSlots } from '@/components/VList/VListItem'
+import type { SelectStrategyProp } from '@/composables/nested/nested'
 import type { GenericProps } from '@/util'
 
 export type VTreeviewChildrenSlots<T> = {
@@ -28,6 +29,7 @@ export const makeVTreeviewChildrenProps = propsFactory({
   },
   items: Array as PropType<readonly InternalListItem[]>,
   selectable: Boolean,
+  selectStrategy: [String, Function, Object] as PropType<SelectStrategyProp>,
 }, 'VTreeviewChildren')
 
 export const VTreeviewChildren = genericComponent<new <T extends InternalListItem>(
@@ -60,29 +62,33 @@ export const VTreeviewChildren = genericComponent<new <T extends InternalListIte
       })
     }
 
-    function onClick (e: MouseEvent | KeyboardEvent, item: any) {
-      e.stopPropagation()
-
-      checkChildren(item)
+    function selectItem (select: (value: boolean) => void, isSelected: boolean) {
+      if (props.selectable) {
+        select(!isSelected)
+      }
     }
 
     return () => slots.default?.() ?? props.items?.map(({ children, props: itemProps, raw: item }) => {
       const loading = isLoading.value === item.value
       const slotsWithItem = {
-        prepend: slots.prepend
-          ? slotProps => slots.prepend?.({ ...slotProps, item })
-          : props.selectable
-            ? ({ isSelected, isIndeterminate }) => (
-              <VCheckboxBtn
-                key={ item.value }
-                tabindex="-1"
-                modelValue={ isSelected }
-                loading={ loading }
-                indeterminate={ isIndeterminate }
-                onClick={ (e: MouseEvent) => onClick(e, item) }
-              />
-            )
-            : undefined,
+        prepend: slotProps => (
+          <>
+            { props.selectable && (!children || (children && !['leaf', 'single-leaf'].includes(props.selectStrategy as string))) && (
+              <div>
+                <VCheckboxBtn
+                  key={ item.value }
+                  tabindex="-1"
+                  modelValue={ slotProps.isSelected }
+                  loading={ loading }
+                  indeterminate={ slotProps.isIndeterminate }
+                  onClick={ withModifiers(() => selectItem(slotProps.select, slotProps.isSelected), ['stop']) }
+                />
+              </div>
+            )}
+
+            { slots.prepend?.({ ...slotProps, item }) }
+          </>
+        ),
         append: slots.append ? slotProps => slots.append?.({ ...slotProps, item }) : undefined,
         title: slots.title ? slotProps => slots.title?.({ ...slotProps, item }) : undefined,
       } satisfies VTreeviewItem['$props']['$children']
@@ -96,15 +102,22 @@ export const VTreeviewChildren = genericComponent<new <T extends InternalListIte
           { ...treeviewGroupProps }
         >
           {{
-            activator: ({ props: activatorProps }) => (
-              <VTreeviewItem
-                { ...itemProps }
-                { ...activatorProps }
-                loading={ loading }
-                v-slots={ slotsWithItem }
-                onClick={ (e: MouseEvent | KeyboardEvent) => onClick(e, item) }
-              />
-            ),
+            activator: ({ props: activatorProps }) => {
+              const listItemProps = {
+                ...itemProps,
+                ...activatorProps,
+                value: itemProps?.value,
+              }
+
+              return (
+                <VTreeviewItem
+                  { ...listItemProps }
+                  loading={ loading }
+                  v-slots={ slotsWithItem }
+                  onClick={ () => checkChildren(item) }
+                />
+              )
+            },
             default: () => (
               <VTreeviewChildren
                 { ...treeviewChildrenProps }

packages/vuetify/src/labs/VTreeview/VTreeviewItem.tsx

@@ -3,12 +3,15 @@ import './VTreeviewItem.sass'
 
 // Components
 import { VBtn } from '@/components/VBtn'
-import { VListItemAction } from '@/components/VList'
+import { VListItemAction, VListItemSubtitle, VListItemTitle } from '@/components/VList'
 import { makeVListItemProps, VListItem } from '@/components/VList/VListItem'
 
 // Composables
+import { useDensity } from '@/composables/density'
 import { IconValue } from '@/composables/icons'
+import { useNestedItem } from '@/composables/nested/nested'
 import { useLink } from '@/composables/router'
+import { genOverlays } from '@/composables/variant'
 
 // Utilities
 import { computed, inject, ref } from 'vue'
@@ -17,7 +20,7 @@ import { genericComponent, propsFactory, useRender } from '@/util'
 // Types
 import { VTreeviewSymbol } from './shared'
 import { VProgressCircular } from '../allComponents'
-import type { VListItemSlots } from '@/components/VList/VListItem'
+import type { ListItemSlot, VListItemSlots } from '@/components/VList/VListItem'
 
 export const makeVTreeviewItemProps = propsFactory({
   loading: Boolean,
@@ -33,34 +36,133 @@ export const VTreeviewItem = genericComponent<VListItemSlots>()({
 
   setup (props, { attrs, slots, emit }) {
     const link = useLink(props, attrs)
-    const id = computed(() => props.value === undefined ? link.href.value : props.value)
+    const rawId = computed(() => props.value === undefined ? link.href.value : props.value)
     const vListItemRef = ref<VListItem>()
 
+    const {
+      activate,
+      isActivated,
+      select,
+      isSelected,
+      isIndeterminate,
+      isGroupActivator,
+      root,
+      id,
+    } = useNestedItem(rawId, false)
+
+    const isActivatableGroupActivator = computed(() =>
+      (root.activatable.value) &&
+      isGroupActivator
+    )
+
+    const { densityClasses } = useDensity(props, 'v-list-item')
+
+    const slotProps = computed(() => ({
+      isActive: isActivated.value,
+      select,
+      isSelected: isSelected.value,
+      isIndeterminate: isIndeterminate.value,
+    } satisfies ListItemSlot))
+
     const isClickable = computed(() =>
       !props.disabled &&
       props.link !== false &&
       (props.link || link.isClickable.value || (props.value != null && !!vListItemRef.value?.list))
     )
 
-    function onClick (e: MouseEvent | KeyboardEvent) {
-      if (!vListItemRef.value?.isGroupActivator || !isClickable.value) return
-      props.value != null && vListItemRef.value?.select(!vListItemRef.value?.isSelected, e)
+    function activateItem (e: MouseEvent | KeyboardEvent) {
+      if (
+        !isClickable.value ||
+        (!isActivatableGroupActivator.value && isGroupActivator)
+      ) return
+
+      if (root.activatable.value) {
+        if (isActivatableGroupActivator.value) {
+          activate(!isActivated.value, e)
+        } else {
+          vListItemRef.value?.activate(!vListItemRef.value?.isActivated, e)
+        }
+      }
     }
 
     function onKeyDown (e: KeyboardEvent) {
       if (e.key === 'Enter' || e.key === ' ') {
         e.preventDefault()
-        onClick(e as any as MouseEvent)
+        activateItem(e)
       }
     }
 
     const visibleIds = inject(VTreeviewSymbol, { visibleIds: ref() }).visibleIds
 
     useRender(() => {
+      const hasTitle = (slots.title || props.title != null)
+      const hasSubtitle = (slots.subtitle || props.subtitle != null)
       const listItemProps = VListItem.filterProps(props)
       const hasPrepend = slots.prepend || props.toggleIcon
 
-      return (
+      return isActivatableGroupActivator.value
+        ? (
+          <div
+            class={[
+              'v-list-item',
+              'v-list-item--one-line',
+              'v-treeview-item',
+              'v-treeview-item--activetable-group-activator',
+              {
+                'v-list-item--active': isActivated.value || isSelected.value,
+                'v-treeview-item--filtered': visibleIds.value && !visibleIds.value.has(id.value),
+              },
+              densityClasses.value,
+              props.class,
+            ]}
+            onClick={ activateItem }
+            v-ripple={ isClickable.value && props.ripple }
+          >
+            <>
+              { genOverlays(isActivated.value || isSelected.value, 'v-list-item') }
+              { props.toggleIcon && (
+                <VListItemAction start={ false }>
+                  <VBtn
+                    density="compact"
+                    icon={ props.toggleIcon }
+                    loading={ props.loading }
+                    variant="text"
+                    onClick={ props.onClick }
+                  >
+                    {{
+                      loader () {
+                        return (
+                          <VProgressCircular
+                            indeterminate="disable-shrink"
+                            size="20"
+                            width="2"
+                          />
+                        )
+                      },
+                    }}
+                  </VBtn>
+                </VListItemAction>
+              )}
+
+             </>
+
+            <div class="v-list-item__content" data-no-activator="">
+              { hasTitle && (
+                <VListItemTitle key="title">
+                  { slots.title?.({ title: props.title }) ?? props.title }
+                </VListItemTitle>
+              )}
+
+              { hasSubtitle && (
+                <VListItemSubtitle key="subtitle">
+                  { slots.subtitle?.({ subtitle: props.subtitle }) ?? props.subtitle }
+                </VListItemSubtitle>
+              )}
+
+              { slots.default?.(slotProps.value) }
+            </div>
+          </div>
+        ) : (
         <VListItem
           ref={ vListItemRef }
           { ...listItemProps }
@@ -71,7 +173,8 @@ export const VTreeviewItem = genericComponent<VListItemSlots>()({
             },
             props.class,
           ]}
-          onClick={ onClick }
+          value={ id.value }
+          onClick={ activateItem }
           onKeydown={ isClickable.value && onKeyDown }
         >
           {{
@@ -108,7 +211,7 @@ export const VTreeviewItem = genericComponent<VListItemSlots>()({
             } : undefined,
           }}
         </VListItem>
-      )
+        )
     })
 
     return {}