Project import generated by Copybara.

PiperOrigin-RevId: 288775969

packages/mdc-textfield/icon/foundation.ts

@@ -104,6 +104,8 @@ export class MDCTextFieldIconFoundation extends MDCFoundation<MDCTextFieldIconAd
   handleInteraction(evt: MouseEvent | KeyboardEvent) {
     const isEnterKey = (evt as KeyboardEvent).key === 'Enter' || (evt as KeyboardEvent).keyCode === 13;
     if (evt.type === 'click' || isEnterKey) {
+      evt.preventDefault();  // stop click from causing host label to focus
+                             // input
       this.adapter_.notifyIconAction();
     }
   }

packages/mdc-textfield/test/component.test.ts

@@ -36,12 +36,12 @@ const {cssClasses} = MDCTextFieldFoundation;
 const getFixture = () => {
   const wrapper = document.createElement('div');
   wrapper.innerHTML = `
-    <div class="mdc-text-field mdc-text-field--with-leading-icon">
+    <label class="mdc-text-field mdc-text-field--with-leading-icon">
       <i class="material-icons mdc-text-field__icon mdc-text-field__icon--leading" tabindex="0" role="button">event</i>
-      <input type="text" class="mdc-text-field__input" id="my-text-field">
-      <label class="mdc-floating-label" for="my-text-field">My Label</label>
+      <input type="text" class="mdc-text-field__input" aria-labelledby="my-label">
+      <span class="mdc-floating-label" id="my-label">My Label</span>
       <div class="mdc-line-ripple"></div>
-    </div>
+    </label>
   `;
   const el = wrapper.firstElementChild as HTMLElement;
   wrapper.removeChild(el);
@@ -674,6 +674,22 @@ describe('MDCTextField', () => {
        expect(lineRipple.setRippleCenter).toHaveBeenCalledWith(100);
      });
 
+  it('should not focus input when clicking icon', () => {
+    const root = getFixture();
+    const icon = root.querySelector('.mdc-text-field__icon') as HTMLElement;
+    const component = new MDCTextField(root);
+    document.body.appendChild(root);
+    component.root_.click();
+    const input = (component as any).input_ as HTMLInputElement;
+    expect(document.activeElement).toBe(input, 'input should be focused');
+    input.blur();
+    expect(document.activeElement).not.toBe(input, 'ensure input was blurred');
+    icon.click();
+    expect(document.activeElement)
+        .not.toBe(input, 'input should not be focused');
+    document.body.removeChild(root);
+  });
+
   function setupMockFoundationTest(root = getFixture()) {
     const mockFoundation = createMockFoundation(MDCTextFieldFoundation);
     const component = new MDCTextField(root, mockFoundation);