refactor(cdk-experimental/ui-patterns): create event manager index file

src/cdk-experimental/ui-patterns/accordion/accordion.ts

@@ -7,8 +7,7 @@
  */
 
 import {computed} from '@angular/core';
-import {KeyboardEventManager} from '../behaviors/event-manager/keyboard-event-manager';
-import {PointerEventManager} from '../behaviors/event-manager/pointer-event-manager';
+import {KeyboardEventManager, PointerEventManager} from '../behaviors/event-manager';
 import {
   ExpansionItem,
   ExpansionControl,

src/cdk-experimental/ui-patterns/behaviors/event-manager/event-manager.ts

@@ -41,7 +41,7 @@ export interface EventHandlerConfig<T extends Event> extends EventHandlerOptions
 }
 
 /** Bit flag representation of the possible modifier keys that can be present on an event. */
-export enum ModifierKey {
+export enum Modifier {
   None = 0,
   Ctrl = 0b1,
   Shift = 0b10,
@@ -50,7 +50,7 @@ export enum ModifierKey {
   Any = 'Any',
 }
 
-export type ModifierInputs = ModifierKey | ModifierKey[];
+export type ModifierInputs = Modifier | Modifier[];
 
 /**
  * Abstract base class for all event managers.
@@ -86,10 +86,10 @@ export abstract class EventManager<T extends Event> {
 /** Gets bit flag representation of the modifier keys present on the given event. */
 export function getModifiers(event: EventWithModifiers): number {
   return (
-    (+event.ctrlKey && ModifierKey.Ctrl) |
-    (+event.shiftKey && ModifierKey.Shift) |
-    (+event.altKey && ModifierKey.Alt) |
-    (+event.metaKey && ModifierKey.Meta)
+    (+event.ctrlKey && Modifier.Ctrl) |
+    (+event.shiftKey && Modifier.Shift) |
+    (+event.altKey && Modifier.Alt) |
+    (+event.metaKey && Modifier.Meta)
   );
 }
 
@@ -101,7 +101,7 @@ export function hasModifiers(event: EventWithModifiers, modifiers: ModifierInput
   const eventModifiers = getModifiers(event);
   const modifiersList = Array.isArray(modifiers) ? modifiers : [modifiers];
 
-  if (modifiersList.includes(ModifierKey.Any)) {
+  if (modifiersList.includes(Modifier.Any)) {
     return true;
   }
 

src/cdk-experimental/ui-patterns/behaviors/event-manager/index.ts

@@ -0,0 +1,11 @@
+/**
+ * @license
+ * Copyright Google LLC All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.dev/license
+ */
+
+export {Modifier} from './event-manager';
+export {KeyboardEventManager} from './keyboard-event-manager';
+export {PointerEventManager} from './pointer-event-manager';

src/cdk-experimental/ui-patterns/behaviors/event-manager/keyboard-event-manager.ts

@@ -13,7 +13,7 @@ import {
   EventManager,
   hasModifiers,
   ModifierInputs,
-  ModifierKey,
+  Modifier,
 } from './event-manager';
 
 /**
@@ -55,7 +55,7 @@ export class KeyboardEventManager<T extends KeyboardEvent> extends EventManager<
   private _normalizeInputs(...args: any[]) {
     const key = args.length === 3 ? args[1] : args[0];
     const handler = args.length === 3 ? args[2] : args[1];
-    const modifiers = args.length === 3 ? args[0] : ModifierKey.None;
+    const modifiers = args.length === 3 ? args[0] : Modifier.None;
 
     return {
       key: key as KeyCode,

src/cdk-experimental/ui-patterns/behaviors/event-manager/pointer-event-manager.ts

@@ -12,7 +12,7 @@ import {
   EventManager,
   hasModifiers,
   ModifierInputs,
-  ModifierKey,
+  Modifier,
 } from './event-manager';
 
 /**
@@ -80,7 +80,7 @@ export class PointerEventManager<T extends PointerEvent> extends EventManager<T>
 
     return {
       button: MouseButton.Main,
-      modifiers: ModifierKey.None,
+      modifiers: Modifier.None,
       handler: args[0] as EventHandler<T>,
     };
   }

src/cdk-experimental/ui-patterns/listbox/listbox.ts

@@ -6,10 +6,8 @@
  * found in the LICENSE file at https://angular.dev/license
  */
 
-import {ModifierKey as Modifier} from '../behaviors/event-manager/event-manager';
-import {KeyboardEventManager} from '../behaviors/event-manager/keyboard-event-manager';
-import {PointerEventManager} from '../behaviors/event-manager/pointer-event-manager';
 import {OptionPattern} from './option';
+import {KeyboardEventManager, PointerEventManager, Modifier} from '../behaviors/event-manager';
 import {ListSelection, ListSelectionInputs} from '../behaviors/list-selection/list-selection';
 import {ListTypeahead, ListTypeaheadInputs} from '../behaviors/list-typeahead/list-typeahead';
 import {ListNavigation, ListNavigationInputs} from '../behaviors/list-navigation/list-navigation';

src/cdk-experimental/ui-patterns/radio-group/radio-group.ts

@@ -7,8 +7,7 @@
  */
 
 import {computed} from '@angular/core';
-import {KeyboardEventManager} from '../behaviors/event-manager/keyboard-event-manager';
-import {PointerEventManager} from '../behaviors/event-manager/pointer-event-manager';
+import {KeyboardEventManager, PointerEventManager} from '../behaviors/event-manager';
 import {ListFocus, ListFocusInputs} from '../behaviors/list-focus/list-focus';
 import {ListNavigation, ListNavigationInputs} from '../behaviors/list-navigation/list-navigation';
 import {ListSelection, ListSelectionInputs} from '../behaviors/list-selection/list-selection';

src/cdk-experimental/ui-patterns/tabs/tabs.ts

@@ -7,8 +7,7 @@
  */
 
 import {computed} from '@angular/core';
-import {KeyboardEventManager} from '../behaviors/event-manager/keyboard-event-manager';
-import {PointerEventManager} from '../behaviors/event-manager/pointer-event-manager';
+import {KeyboardEventManager, PointerEventManager} from '../behaviors/event-manager';
 import {ListFocus, ListFocusInputs, ListFocusItem} from '../behaviors/list-focus/list-focus';
 import {
   ListNavigation,

src/cdk-experimental/ui-patterns/tree/tree.ts

@@ -25,9 +25,7 @@ import {
   ListTypeaheadItem,
 } from '../behaviors/list-typeahead/list-typeahead';
 import {ExpansionItem, ExpansionControl, ListExpansion} from '../behaviors/expansion/expansion';
-import {KeyboardEventManager} from '../behaviors/event-manager/keyboard-event-manager';
-import {PointerEventManager} from '../behaviors/event-manager/pointer-event-manager';
-import {ModifierKey as Modifier} from '../behaviors/event-manager/event-manager';
+import {KeyboardEventManager, PointerEventManager, Modifier} from '../behaviors/event-manager';
 
 /** Represents the required inputs for a tree item. */
 export interface TreeItemInputs<V>