fix(material/chips): static chips should disable ripple (#31652)

Author: adolgachev

goldens/material/chips/index.api.md

@@ -84,6 +84,7 @@ export class MatChip implements OnInit, AfterViewInit, AfterContentInit, DoCheck
     _handlePrimaryActionInteraction(): void;
     // (undocumented)
     _hasFocus(): boolean;
+    _hasInteractiveActions(): boolean;
     _hasTrailingIcon(): boolean;
     highlighted: boolean;
     id: string;

src/material/chips/chip-row.spec.ts

@@ -436,6 +436,43 @@ describe('Row Chips', () => {
       }));
     });
 
+    describe('_hasInteractiveActions', () => {
+      it('should return true if the chip has a remove icon', () => {
+        testComponent.removable = true;
+        fixture.changeDetectorRef.markForCheck();
+        fixture.detectChanges();
+        expect(chipInstance._hasInteractiveActions()).toBe(true);
+      });
+
+      it('should return true if the chip has an edit icon', () => {
+        testComponent.editable = true;
+        testComponent.showEditIcon = true;
+        fixture.changeDetectorRef.markForCheck();
+        fixture.detectChanges();
+        expect(chipInstance._hasInteractiveActions()).toBe(true);
+      });
+
+      it('should return true even with a non-interactive trailing icon', () => {
+        testComponent.showTrailingIcon = true;
+        fixture.changeDetectorRef.markForCheck();
+        fixture.detectChanges();
+        expect(chipInstance._hasInteractiveActions()).toBe(true);
+      });
+
+      it('should return false if all actions are non-interactive', () => {
+        // Make primary action non-interactive for testing purposes.
+        chipInstance.primaryAction.isInteractive = false;
+        testComponent.showTrailingIcon = true;
+        testComponent.removable = false; // remove icon is interactive
+        fixture.changeDetectorRef.markForCheck();
+        fixture.detectChanges();
+
+        // The trailing icon is not interactive.
+        expect(chipInstance.trailingIcon.isInteractive).toBe(false);
+        expect(chipInstance._hasInteractiveActions()).toBe(false);
+      });
+    });
+
     describe('with edit icon', () => {
       beforeEach(async () => {
         testComponent.showEditIcon = true;
@@ -507,10 +544,15 @@ describe('Row Chips', () => {
               <button matChipEdit>edit</button>
             }
             {{name}}
-            <button matChipRemove>x</button>
+            @if (removable) {
+              <button matChipRemove>x</button>
+            }
             @if (useCustomEditInput) {
               <span class="projected-edit-input" matChipEditInput></span>
             }
+            @if (showTrailingIcon) {
+              <span matChipTrailingIcon>trailing</span>
+            }
           </mat-chip-row>
           <input matInput [matChipInputFor]="chipGrid" #chipInput>
         </div>
@@ -529,6 +571,7 @@ class SingleChip {
   editable: boolean = false;
   showEditIcon: boolean = false;
   useCustomEditInput: boolean = true;
+  showTrailingIcon = false;
   ariaLabel: string | null = null;
   ariaDescription: string | null = null;
 

src/material/chips/chip.spec.ts

@@ -117,6 +117,18 @@ describe('MatChip', () => {
       expect(primaryAction.hasAttribute('tabindex')).toBe(false);
     });
 
+    it('should disable the ripple if there are no interactive actions', () => {
+      // expect(chipInstance._isRippleDisabled()).toBe(false); TODO(andreyd)
+
+      // Make primary action non-interactive for testing purposes.
+      chipInstance.primaryAction.isInteractive = false;
+      fixture.changeDetectorRef.markForCheck();
+      fixture.detectChanges();
+
+      expect(chipInstance._hasInteractiveActions()).toBe(false);
+      expect(chipInstance._isRippleDisabled()).toBe(true);
+    });
+
     it('should return the chip text if value is undefined', () => {
       expect(chipInstance.value.trim()).toBe(fixture.componentInstance.name);
     });

src/material/chips/chip.ts

@@ -331,6 +331,7 @@ export class MatChip implements OnInit, AfterViewInit, AfterContentInit, DoCheck
       this.disableRipple ||
       this._animationsDisabled ||
       this._isBasicChip ||
+      !this._hasInteractiveActions() ||
       !!this._globalRippleOptions?.disabled
     );
   }
@@ -400,6 +401,11 @@ export class MatChip implements OnInit, AfterViewInit, AfterContentInit, DoCheck
     // Empty here, but is overwritten in child classes.
   }
 
+  /** Returns whether the chip has any interactive actions. */
+  _hasInteractiveActions(): boolean {
+    return this._getActions().some(a => a.isInteractive);
+  }
+
   /** Handles interactions with the edit action of the chip. */
   _edit(event: Event) {
     // Empty here, but is overwritten in child classes.