feat(richtext-lexical)!: dropdown menu disabled status (#8177)

**Breaking change**: ToolbarDropdown no longer receives
`groupKey={group.key}` and `items={group.items}` as props, but instead
`group={group}`

___

Similar to #8159, but in this case it allows you to disable an entire
dropdown menu, not just individual items in the dropdown.

This adds a new property to `ToolbarGroup` when used with `type:
'dropdown'`.

For example, if you add `isEnabled: () => false,` inside
`packages/richtext-lexical/src/features/shared/toolbar/textDropdownGroup.ts`
and run `pnpm dev fields`, this is what you'll see in the Lexical
editor:


![image](https://github.com/user-attachments/assets/4efe2e92-2e78-473f-8c97-0995e3d44671)

packages/richtext-lexical/src/features/toolbars/fixed/client/Toolbar/index.tsx

@@ -110,9 +110,8 @@ function ToolbarGroupComponent({
           <ToolbarDropdown
             anchorElem={anchorElem}
             editor={editor}
-            groupKey={group.key}
+            group={group}
             Icon={DropdownIcon}
-            items={group.items}
             itemsContainerClassNames={['fixed-toolbar__dropdown-items']}
             label={dropdownLabel}
             maxActiveItems={1}
@@ -122,8 +121,7 @@ function ToolbarGroupComponent({
           <ToolbarDropdown
             anchorElem={anchorElem}
             editor={editor}
-            groupKey={group.key}
-            items={group.items}
+            group={group}
             itemsContainerClassNames={['fixed-toolbar__dropdown-items']}
             label={dropdownLabel}
             maxActiveItems={1}

packages/richtext-lexical/src/features/toolbars/inline/client/Toolbar/index.tsx

@@ -101,9 +101,8 @@ function ToolbarGroupComponent({
           <ToolbarDropdown
             anchorElem={anchorElem}
             editor={editor}
-            groupKey={group.key}
+            group={group}
             Icon={DropdownIcon}
-            items={group.items}
             maxActiveItems={1}
             onActiveChange={onActiveChange}
           />
@@ -111,8 +110,7 @@ function ToolbarGroupComponent({
           <ToolbarDropdown
             anchorElem={anchorElem}
             editor={editor}
-            groupKey={group.key}
-            items={group.items}
+            group={group}
             maxActiveItems={1}
             onActiveChange={onActiveChange}
           />

packages/richtext-lexical/src/features/toolbars/shared/ToolbarButton/index.scss

@@ -18,7 +18,7 @@
     margin-right: 2px;
   }
 
-  &:hover:not([disabled]) {
+  &:hover:not(.disabled) {
     background-color: var(--theme-elevation-100);
   }
 

packages/richtext-lexical/src/features/toolbars/shared/ToolbarDropdown/index.scss

@@ -23,11 +23,8 @@
 
   &:disabled {
     cursor: not-allowed;
-
-    .icon {
     opacity: 0.2;
   }
-  }
 
   &:hover:not([disabled]) {
     background-color: var(--theme-elevation-100);

packages/richtext-lexical/src/features/toolbars/shared/ToolbarDropdown/index.tsx

@@ -9,7 +9,7 @@ import { mergeRegister } from '@lexical/utils'
 import { useTranslation } from '@payloadcms/ui'
 import { $getSelection } from 'lexical'
 
-import type { ToolbarGroupItem } from '../../types.js'
+import type { ToolbarDropdownGroup, ToolbarGroupItem } from '../../types.js'
 
 import { useEditorConfigContext } from '../../../../lexical/config/client/EditorConfigProvider.js'
 import { DropDown, DropDownItem } from './DropDown.js'
@@ -70,9 +70,8 @@ export const ToolbarDropdown = ({
   anchorElem,
   classNames,
   editor,
-  groupKey,
+  group,
   Icon,
-  items,
   itemsContainerClassNames,
   label,
   maxActiveItems,
@@ -81,9 +80,8 @@ export const ToolbarDropdown = ({
   anchorElem: HTMLElement
   classNames?: string[]
   editor: LexicalEditor
-  groupKey: string
+  group: ToolbarDropdownGroup
   Icon?: React.FC
-  items: ToolbarGroupItem[]
   itemsContainerClassNames?: string[]
   label?: string
   /**
@@ -95,7 +93,9 @@ export const ToolbarDropdown = ({
 }) => {
   const [activeItemKeys, setActiveItemKeys] = React.useState<string[]>([])
   const [enabledItemKeys, setEnabledItemKeys] = React.useState<string[]>([])
+  const [enabledGroup, setEnabledGroup] = React.useState<boolean>(true)
   const editorConfigContext = useEditorConfigContext()
+  const { items, key: groupKey } = group
 
   const updateStates = useCallback(() => {
     editor.getEditorState().read(() => {
@@ -125,6 +125,9 @@ export const ToolbarDropdown = ({
           _enabledItemKeys.push(item.key)
         }
       }
+      if (group.isEnabled) {
+        setEnabledGroup(group.isEnabled({ editor, editorConfigContext, selection }))
+      }
       setActiveItemKeys(_activeItemKeys)
       setEnabledItemKeys(_enabledItemKeys)
 
@@ -132,7 +135,7 @@ export const ToolbarDropdown = ({
         onActiveChange({ activeItems: _activeItems })
       }
     })
-  }, [editor, editorConfigContext, items, maxActiveItems, onActiveChange])
+  }, [editor, editorConfigContext, group, items, maxActiveItems, onActiveChange])
 
   useEffect(() => {
     updateStates()
@@ -152,6 +155,7 @@ export const ToolbarDropdown = ({
       buttonClassName={[baseClass, `${baseClass}-${groupKey}`, ...(classNames || [])]
         .filter(Boolean)
         .join(' ')}
+      disabled={!enabledGroup}
       Icon={Icon}
       itemsContainerClassNames={[`${baseClass}-items`, ...(itemsContainerClassNames || [])]}
       key={groupKey}

packages/richtext-lexical/src/features/toolbars/types.ts

@@ -4,30 +4,25 @@ import type React from 'react'
 
 import type { EditorConfigContextType } from '../../lexical/config/client/EditorConfigProvider.js'
 
-export type ToolbarGroup =
-  | {
-      /**
-       * All toolbar items part of this toolbar group need to be added here.
-       */
-      items: Array<ToolbarGroupItem>
-      /**
-       * Each toolbar group needs to have a unique key. Groups with the same keys will have their items merged together.
-       */
-      key: string
-      /**
-       * Determines where the toolbar group will be.
-       */
-      order?: number
-      /**
-       * Controls the toolbar group type. Set to `buttons` to create a buttons toolbar group, which displays toolbar items horizontally using only their icons.
-       */
-      type: 'buttons'
-    }
-  | {
+export type ToolbarGroup = ToolbarButtonsGroup | ToolbarDropdownGroup
+
+export type ToolbarDropdownGroup = {
   /**
    * The dropdown toolbar ChildComponent allows you to pass in a React Component which will be displayed within the dropdown button.
    */
   ChildComponent?: React.FC
+  /**
+   * This is optional and controls if the toolbar group is highlighted or not.
+   */
+  isEnabled?: ({
+    editor,
+    editorConfigContext,
+    selection,
+  }: {
+    editor: LexicalEditor
+    editorConfigContext: EditorConfigContextType
+    selection: BaseSelection
+  }) => boolean
   /**
    * All toolbar items part of this toolbar group need to be added here.
    */
@@ -46,6 +41,25 @@ export type ToolbarGroup =
   type: 'dropdown'
 }
 
+export type ToolbarButtonsGroup = {
+  /**
+   * All toolbar items part of this toolbar group need to be added here.
+   */
+  items: Array<ToolbarGroupItem>
+  /**
+   * Each toolbar group needs to have a unique key. Groups with the same keys will have their items merged together.
+   */
+  key: string
+  /**
+   * Determines where the toolbar group will be.
+   */
+  order?: number
+  /**
+   * Controls the toolbar group type. Set to `buttons` to create a buttons toolbar group, which displays toolbar items horizontally using only their icons.
+   */
+  type: 'buttons'
+}
+
 export type ToolbarGroupItem = {
   /** A React component which is rendered within your toolbar item's default button component. Usually, you want this to be an icon. */
   ChildComponent?: React.FC