fix(list): disableRipple on selection list not affecting list options after init

Along the same lines as #14836. Fixes changes to `disableRipple` not being propagated immediately the list options.

Author: crisbeto

src/dev-app/list/list-demo.html

@@ -119,7 +119,8 @@ <h2>Selection list</h2>
     <mat-selection-list #groceries [ngModel]="selectedOptions"
                         (ngModelChange)="onSelectedOptionsChange($event)"
                         (change)="changeEventCount = changeEventCount + 1"
-                        [disabled]="selectionListDisabled">
+                        [disabled]="selectionListDisabled"
+                        [disableRipple]="selectionListRippleDisabled">
       <h3 mat-subheader>Groceries</h3>
 
       <mat-list-option value="bananas" checkboxPosition="before">Bananas</mat-list-option>
@@ -128,7 +129,7 @@ <h3 mat-subheader>Groceries</h3>
       <mat-list-option value="strawberries">Strawberries</mat-list-option>
     </mat-selection-list>
 
-    <mat-selection-list>
+    <mat-selection-list [disableRipple]="selectionListRippleDisabled">
       <h3 mat-subheader>Dogs</h3>
 
       <mat-list-option checkboxPosition="before">
@@ -145,8 +146,16 @@ <h3 mat-subheader>Dogs</h3>
     <p>Selected: {{selectedOptions | json}}</p>
     <p>Change Event Count {{changeEventCount}}</p>
     <p>Model Change Event Count {{modelChangeEventCount}}</p>
-    <mat-checkbox [(ngModel)]="selectionListDisabled">Disable Selection List</mat-checkbox>
-
+    <p>
+      <mat-checkbox [(ngModel)]="selectionListDisabled">
+        Disable Selection List
+      </mat-checkbox>
+    </p>
+    <p>
+      <mat-checkbox [(ngModel)]="selectionListRippleDisabled">
+        Disable Selection List ripples
+      </mat-checkbox>
+    </p>
     <p>
       <button mat-raised-button (click)="groceries.selectAll()">Select all</button>
       <button mat-raised-button (click)="groceries.deselectAll()">Deselect all</button>

src/dev-app/list/list-demo.ts

@@ -60,6 +60,7 @@ export class ListDemo {
   thirdLine = false;
   infoClicked = false;
   selectionListDisabled = false;
+  selectionListRippleDisabled = false;
 
   selectedOptions: string[] = ['apples'];
   changeEventCount = 0;

src/lib/list/selection-list.spec.ts

@@ -4,6 +4,7 @@ import {
   dispatchFakeEvent,
   dispatchEvent,
   dispatchKeyboardEvent,
+  dispatchMouseEvent,
 } from '@angular/cdk/testing';
 import {
   Component,
@@ -13,7 +14,7 @@ import {
   ViewChildren,
 } from '@angular/core';
 import {async, ComponentFixture, fakeAsync, TestBed, tick, flush} from '@angular/core/testing';
-import {MatRipple} from '@angular/material/core';
+import {MatRipple, defaultRippleAnimationConfig} from '@angular/material/core';
 import {By} from '@angular/platform-browser';
 import {
   MatListModule,
@@ -505,6 +506,33 @@ describe('MatSelectionList without forms', () => {
       expect(selectionList.nativeElement.getAttribute('aria-multiselectable')).toBe('true');
     });
 
+    it('should disable list item ripples when the ripples on the list have been disabled',
+      fakeAsync(() => {
+        const rippleTarget = fixture.nativeElement
+            .querySelector('.mat-list-option:not(.mat-list-item-disabled) .mat-list-item-content');
+        const {enterDuration, exitDuration} = defaultRippleAnimationConfig;
+
+        dispatchMouseEvent(rippleTarget, 'mousedown');
+        dispatchMouseEvent(rippleTarget, 'mouseup');
+
+        expect(rippleTarget.querySelectorAll('.mat-ripple-element').length)
+            .toBe(1, 'Expected ripples to be enabled by default.');
+
+        // Wait for the ripples to go away.
+        tick(enterDuration + exitDuration);
+        expect(rippleTarget.querySelectorAll('.mat-ripple-element').length)
+            .toBe(0, 'Expected ripples to go away.');
+
+        fixture.componentInstance.listRippleDisabled = true;
+        fixture.detectChanges();
+
+        dispatchMouseEvent(rippleTarget, 'mousedown');
+        dispatchMouseEvent(rippleTarget, 'mouseup');
+
+        expect(rippleTarget.querySelectorAll('.mat-ripple-element').length)
+            .toBe(0, 'Expected no ripples after list ripples are disabled.');
+      }));
+
   });
 
   describe('with list option selected', () => {
@@ -1075,7 +1103,10 @@ describe('MatSelectionList with forms', () => {
 
 
 @Component({template: `
-  <mat-selection-list id="selection-list-1" (selectionChange)="onValueChange($event)">
+  <mat-selection-list
+    id="selection-list-1"
+    (selectionChange)="onValueChange($event)"
+    [disableRipple]="listRippleDisabled">
     <mat-list-option checkboxPosition="before" disabled="true" value="inbox">
       Inbox (disabled selection-option)
     </mat-list-option>
@@ -1092,6 +1123,7 @@ describe('MatSelectionList with forms', () => {
   </mat-selection-list>`})
 class SelectionListWithListOptions {
   showLastOption: boolean = true;
+  listRippleDisabled = false;
 
   onValueChange(_change: MatSelectionListChange) {}
 }

src/lib/list/selection-list.ts

@@ -38,6 +38,8 @@ import {
   QueryList,
   ViewChild,
   ViewEncapsulation,
+  SimpleChanges,
+  OnChanges,
 } from '@angular/core';
 import {
   CanDisableRipple, CanDisableRippleCtor,
@@ -299,7 +301,7 @@ export class MatListOption extends _MatListOptionMixinBase
   changeDetection: ChangeDetectionStrategy.OnPush
 })
 export class MatSelectionList extends _MatSelectionListMixinBase implements FocusableOption,
-    CanDisableRipple, AfterContentInit, ControlValueAccessor, OnDestroy {
+    CanDisableRipple, AfterContentInit, ControlValueAccessor, OnDestroy, OnChanges {
 
   /** The FocusKeyManager which handles focus. */
   _keyManager: FocusKeyManager<MatListOption>;
@@ -331,9 +333,7 @@ export class MatSelectionList extends _MatSelectionListMixinBase implements Focu
     // strategy. Therefore the options will not check for any changes if the `MatSelectionList`
     // changed its state. Since we know that a change to `disabled` property of the list affects
     // the state of the options, we manually mark each option for check.
-    if (this.options) {
-      this.options.forEach(option => option._markForCheck());
-    }
+    this._markOptionsForCheck();
   }
   private _disabled: boolean = false;
 
@@ -387,6 +387,14 @@ export class MatSelectionList extends _MatSelectionListMixinBase implements Focu
     });
   }
 
+  ngOnChanges(changes: SimpleChanges) {
+    const disableRippleChanges = changes.disableRipple;
+
+    if (disableRippleChanges && !disableRippleChanges.firstChange) {
+      this._markOptionsForCheck();
+    }
+  }
+
   ngOnDestroy() {
     this._modelChanges.unsubscribe();
   }
@@ -581,4 +589,11 @@ export class MatSelectionList extends _MatSelectionListMixinBase implements Focu
   private _getOptionIndex(option: MatListOption): number {
     return this.options.toArray().indexOf(option);
   }
+
+  /** Marks all the options to be checked in the next change detection run. */
+  private _markOptionsForCheck() {
+    if (this.options) {
+      this.options.forEach(option => option._markForCheck());
+    }
+  }
 }

tools/public_api_guard/lib/list.d.ts

@@ -81,7 +81,7 @@ export declare class MatNavList extends _MatListMixinBase implements CanDisableR
     ngOnDestroy(): void;
 }
 
-export declare class MatSelectionList extends _MatSelectionListMixinBase implements FocusableOption, CanDisableRipple, AfterContentInit, ControlValueAccessor, OnDestroy {
+export declare class MatSelectionList extends _MatSelectionListMixinBase implements FocusableOption, CanDisableRipple, AfterContentInit, ControlValueAccessor, OnDestroy, OnChanges {
     _keyManager: FocusKeyManager<MatListOption>;
     _onTouched: () => void;
     compareWith: (o1: any, o2: any) => boolean;
@@ -99,6 +99,7 @@ export declare class MatSelectionList extends _MatSelectionListMixinBase impleme
     deselectAll(): void;
     focus(): void;
     ngAfterContentInit(): void;
+    ngOnChanges(changes: SimpleChanges): void;
     ngOnDestroy(): void;
     registerOnChange(fn: (value: any) => void): void;
     registerOnTouched(fn: () => void): void;