chore: move UniqueSelectionDispatcher to cdk (#6928)

BREAKING CHANGE: UniqueSelectionDispatcher, UniqueSelectionDispatcherListener and UNIQUE_SELECTION_DISPATCHER_PROVIDER are no longer
available from @angular/material and instead must be imported from @angular/cdk/collections

src/cdk/collections/public-api.ts

@@ -9,3 +9,8 @@
 export * from './collection-viewer';
 export * from './data-source';
 export * from './selection';
+export {
+  UniqueSelectionDispatcher,
+  UniqueSelectionDispatcherListener,
+  UNIQUE_SELECTION_DISPATCHER_PROVIDER,
+} from './unique-selection-dispatcher';

src/cdk/collections/unique-selection-dispatcher.ts

@@ -39,7 +39,7 @@ export class UniqueSelectionDispatcher {
   /**
    * Listen for future changes to item selection.
    * @return Function used to deregister listener
-   **/
+   */
   listen(listener: UniqueSelectionDispatcherListener): () => void {
     this._listeners.push(listener);
     return () => {

src/lib/button-toggle/button-toggle-module.ts

@@ -8,7 +8,8 @@
 
 import {NgModule} from '@angular/core';
 import {MatButtonToggleGroup, MatButtonToggleGroupMultiple, MatButtonToggle} from './button-toggle';
-import {UNIQUE_SELECTION_DISPATCHER_PROVIDER, MatCommonModule} from '@angular/material/core';
+import {MatCommonModule} from '@angular/material/core';
+import {UNIQUE_SELECTION_DISPATCHER_PROVIDER} from '@angular/cdk/collections';
 import {A11yModule} from '@angular/cdk/a11y';
 
 

src/lib/button-toggle/button-toggle.ts

@@ -27,9 +27,9 @@ import {
 } from '@angular/core';
 import {NG_VALUE_ACCESSOR, ControlValueAccessor} from '@angular/forms';
 import {coerceBooleanProperty} from '@angular/cdk/coercion';
-import {UniqueSelectionDispatcher} from '@angular/material/core';
 import {CanDisable, mixinDisabled} from '@angular/material/core';
 import {FocusMonitor} from '@angular/cdk/a11y';
+import {UniqueSelectionDispatcher} from '@angular/cdk/collections';
 
 /** Acceptable types for a button toggle. */
 export type ToggleType = 'checkbox' | 'radio';

src/lib/core/public-api.ts

@@ -9,7 +9,6 @@
 export * from './animation/animation';
 export * from './common-behaviors/index';
 export * from './compatibility/compatibility';
-export * from './coordination/unique-selection-dispatcher';
 export * from './datetime/index';
 export * from './error/error-options';
 export * from './gestures/gesture-annotations';

src/lib/expansion/accordion-item.ts

@@ -15,7 +15,7 @@ import {
   Optional,
   ChangeDetectorRef,
 } from '@angular/core';
-import {UniqueSelectionDispatcher} from '@angular/material/core';
+import {UniqueSelectionDispatcher} from '@angular/cdk/collections';
 import {CdkAccordion} from './accordion';
 
 /** Used to generate unique ID for each expansion panel. */

src/lib/expansion/expansion-module.ts

@@ -8,7 +8,7 @@
 
 import {CommonModule} from '@angular/common';
 import {NgModule} from '@angular/core';
-import {UNIQUE_SELECTION_DISPATCHER_PROVIDER} from '@angular/material/core';
+import {UNIQUE_SELECTION_DISPATCHER_PROVIDER} from '@angular/cdk/collections';
 import {A11yModule} from '@angular/cdk/a11y';
 import {CdkAccordion, MatAccordion} from './accordion';
 import {MatExpansionPanel, MatExpansionPanelActionRow} from './expansion-panel';

src/lib/expansion/expansion-panel.ts

@@ -21,7 +21,8 @@ import {
   SimpleChanges,
   ViewEncapsulation,
 } from '@angular/core';
-import {CanDisable, mixinDisabled, UniqueSelectionDispatcher} from '@angular/material/core';
+import {UniqueSelectionDispatcher} from '@angular/cdk/collections';
+import {CanDisable, mixinDisabled} from '@angular/material/core';
 import {Subject} from 'rxjs/Subject';
 import {MatAccordion} from './accordion';
 import {AccordionItem} from './accordion-item';

src/lib/radio/radio-module.ts

@@ -12,9 +12,9 @@ import {VIEWPORT_RULER_PROVIDER} from '@angular/cdk/overlay';
 import {
   MatRippleModule,
   MatCommonModule,
-  UNIQUE_SELECTION_DISPATCHER_PROVIDER,
 } from '@angular/material/core';
 import {MatRadioGroup, MatRadioButton} from './radio';
+import {UNIQUE_SELECTION_DISPATCHER_PROVIDER} from '@angular/cdk/collections';
 import {A11yModule} from '@angular/cdk/a11y';
 
 @NgModule({

src/lib/radio/radio.ts

@@ -37,9 +37,9 @@ import {
   mixinDisabled,
   mixinDisableRipple,
   RippleRef,
-  UniqueSelectionDispatcher,
 } from '@angular/material/core';
 import {coerceBooleanProperty} from '@angular/cdk/coercion';
+import {UniqueSelectionDispatcher} from '@angular/cdk/collections';
 import {FocusMonitor, FocusOrigin} from '@angular/cdk/a11y';
 
 // Increasing integer for generating unique ids for radio components.