fix(overlays): do not overwrite id set in htmlAttributes

core/src/components/action-sheet/action-sheet.tsx

@@ -310,7 +310,9 @@ export class ActionSheet implements ComponentInterface, OverlayInterface {
   }
 
   componentWillLoad() {
-    setOverlayId(this.el);
+    if (!this.htmlAttributes?.id) {
+      setOverlayId(this.el);
+    }
   }
 
   componentDidLoad() {

core/src/components/action-sheet/test/action-sheet-id.spec.tsx

@@ -0,0 +1,55 @@
+import { newSpecPage } from '@stencil/core/testing';
+
+import { ActionSheet } from '../action-sheet';
+import { h } from '@stencil/core';
+
+describe('action-sheet: id', () => {
+  it('action sheet should be assigned an incrementing id', async () => {
+    const page = await newSpecPage({
+      components: [ActionSheet],
+      html: `<ion-action-sheet is-open="true"></ion-action-sheet>`,
+    });
+    let actionSheet: HTMLIonActionSheetElement;
+
+    actionSheet = page.body.querySelector('ion-action-sheet')!;
+
+    expect(actionSheet).not.toBe(null);
+    expect(actionSheet.getAttribute('id')).toBe('ion-overlay-1');
+
+    // Remove the action sheet from the DOM
+    actionSheet.remove();
+    await page.waitForChanges();
+
+    // Create a new action sheet to verify the id is incremented
+    actionSheet = document.createElement('ion-action-sheet');
+    actionSheet.isOpen = true;
+    page.body.appendChild(actionSheet);
+    await page.waitForChanges();
+
+    actionSheet = page.body.querySelector('ion-action-sheet')!;
+
+    expect(actionSheet.getAttribute('id')).toBe('ion-overlay-2');
+
+    // Presenting the same action sheet again should reuse the existing id
+
+    actionSheet.isOpen = false;
+    await page.waitForChanges();
+    actionSheet.isOpen = true;
+    await page.waitForChanges();
+
+    actionSheet = page.body.querySelector('ion-action-sheet')!;
+
+    expect(actionSheet.getAttribute('id')).toBe('ion-overlay-2');
+  });
+
+  it('should not overwrite the id set in htmlAttributes', async () => {
+    const id = 'custom-id';
+    const page = await newSpecPage({
+      components: [ActionSheet],
+      template: () => <ion-action-sheet htmlAttributes={{ id }} overlayIndex={-1}></ion-action-sheet>,
+    });
+
+    const alert = page.body.querySelector('ion-action-sheet')!;
+    expect(alert.id).toBe(id);
+  });
+});

core/src/components/alert/test/alert-id.spec.tsx

@@ -0,0 +1,55 @@
+import { newSpecPage } from '@stencil/core/testing';
+
+import { Alert } from '../alert';
+import { h } from '@stencil/core';
+
+describe('alert: id', () => {
+  it('alert should be assigned an incrementing id', async () => {
+    const page = await newSpecPage({
+      components: [Alert],
+      html: `<ion-alert is-open="true"></ion-alert>`,
+    });
+    let alert: HTMLIonAlertElement;
+
+    alert = page.body.querySelector('ion-alert')!;
+
+    expect(alert).not.toBe(null);
+    expect(alert.getAttribute('id')).toBe('ion-overlay-1');
+
+    // Remove the alert from the DOM
+    alert.remove();
+    await page.waitForChanges();
+
+    // Create a new alert to verify the id is incremented
+    alert = document.createElement('ion-alert');
+    alert.isOpen = true;
+    page.body.appendChild(alert);
+    await page.waitForChanges();
+
+    alert = page.body.querySelector('ion-alert')!;
+
+    expect(alert.getAttribute('id')).toBe('ion-overlay-2');
+
+    // Presenting the same alert again should reuse the existing id
+
+    alert.isOpen = false;
+    await page.waitForChanges();
+    alert.isOpen = true;
+    await page.waitForChanges();
+
+    alert = page.body.querySelector('ion-alert')!;
+
+    expect(alert.getAttribute('id')).toBe('ion-overlay-2');
+  });
+
+  it('should not overwrite the id set in htmlAttributes', async () => {
+    const id = 'custom-id';
+    const page = await newSpecPage({
+      components: [Alert],
+      template: () => <ion-alert htmlAttributes={{ id }} overlayIndex={-1}></ion-alert>,
+    });
+
+    const alert = page.body.querySelector('ion-alert')!;
+    expect(alert.id).toBe(id);
+  });
+});

core/src/components/alert/test/alert.spec.tsx → core/src/components/alert/test/alert.spec.ts

@@ -2,7 +2,6 @@ import { newSpecPage } from '@stencil/core/testing';
 
 import { config } from '../../../global/config';
 import { Alert } from '../alert';
-import { h } from '@stencil/core';
 
 describe('alert: custom html', () => {
   it('should not allow for custom html by default', async () => {
@@ -39,15 +38,4 @@ describe('alert: custom html', () => {
     expect(content.textContent).toContain('Custom Text');
     expect(content.querySelector('button.custom-html')).toBe(null);
   });
-
-  it('should not overwrite the id set in htmlAttributes', async () => {
-    const id = 'custom-id';
-    const page = await newSpecPage({
-      components: [Alert],
-      template: () => <ion-alert htmlAttributes={{ id }} overlayIndex={-1}></ion-alert>,
-    });
-
-    const alert = page.body.querySelector('ion-alert')!;
-    expect(alert.id).toBe(id);
-  });
 });

core/src/components/loading/loading.tsx

@@ -214,7 +214,9 @@ export class Loading implements ComponentInterface, OverlayInterface {
       const mode = getIonMode(this);
       this.spinner = config.get('loadingSpinner', config.get('spinner', mode === 'ios' ? 'lines' : 'crescent'));
     }
-    setOverlayId(this.el);
+    if (!this.htmlAttributes?.id) {
+      setOverlayId(this.el);
+    }
   }
 
   componentDidLoad() {

core/src/components/loading/test/loading-id.spec.tsx

@@ -0,0 +1,55 @@
+import { newSpecPage } from '@stencil/core/testing';
+
+import { Loading } from '../loading';
+import { h } from '@stencil/core';
+
+describe('loading: id', () => {
+  it('loading should be assigned an incrementing id', async () => {
+    const page = await newSpecPage({
+      components: [Loading],
+      html: `<ion-loading is-open="true"></ion-loading>`,
+    });
+    let loading: HTMLIonLoadingElement;
+
+    loading = page.body.querySelector('ion-loading')!;
+
+    expect(loading).not.toBe(null);
+    expect(loading.getAttribute('id')).toBe('ion-overlay-1');
+
+    // Remove the loading from the DOM
+    loading.remove();
+    await page.waitForChanges();
+
+    // Create a new loading to verify the id is incremented
+    loading = document.createElement('ion-loading');
+    loading.isOpen = true;
+    page.body.appendChild(loading);
+    await page.waitForChanges();
+
+    loading = page.body.querySelector('ion-loading')!;
+
+    expect(loading.getAttribute('id')).toBe('ion-overlay-2');
+
+    // Presenting the same loading again should reuse the existing id
+
+    loading.isOpen = false;
+    await page.waitForChanges();
+    loading.isOpen = true;
+    await page.waitForChanges();
+
+    loading = page.body.querySelector('ion-loading')!;
+
+    expect(loading.getAttribute('id')).toBe('ion-overlay-2');
+  });
+
+  it('should not overwrite the id set in htmlAttributes', async () => {
+    const id = 'custom-id';
+    const page = await newSpecPage({
+      components: [Loading],
+      template: () => <ion-loading htmlAttributes={{ id }} overlayIndex={-1}></ion-loading>,
+    });
+
+    const alert = page.body.querySelector('ion-loading')!;
+    expect(alert.id).toBe(id);
+  });
+});

core/src/components/modal/modal.tsx

@@ -415,7 +415,9 @@ export class Modal implements ComponentInterface, OverlayInterface {
       printIonWarning('Your breakpoints array must include the initialBreakpoint value.');
     }
 
-    setOverlayId(el);
+    if (!this.htmlAttributes?.id) {
+      setOverlayId(this.el);
+    }
   }
 
   componentDidLoad() {