fix(combobox): include groups in filtering

packages/calcite-components/.stylelintrc.cjs

@@ -6,7 +6,7 @@ const customFunctions = [
   "medium-modular-scale",
   "modular-scale",
   "scale-duration",
-  "small-modular-scale"
+  "small-modular-scale",
 ];
 // ⚠️ END OF AUTO-GENERATED CODE
 

packages/calcite-components/src/components/combobox/combobox.e2e.ts

@@ -534,6 +534,62 @@ describe("calcite-combobox", () => {
       expect(await visibleItems[0].getProperty("value")).toBe("1");
     });
 
+    it("should display group and its items when filter matches group label", async () => {
+      const page = await newE2EPage();
+      await page.setContent(
+        html` <calcite-combobox placeholder="typing 'group1' or 'group2' should show group with all items">
+          <calcite-combobox-item-group id="group1" label="group1">
+            <calcite-combobox-item id="value1" value="value1" text-label="value1"></calcite-combobox-item>
+            <calcite-combobox-item id="value2" value="value2" text-label="value2"></calcite-combobox-item>
+            <calcite-combobox-item id="value3" value="value3" text-label="value3"></calcite-combobox-item>
+          </calcite-combobox-item-group>
+          <calcite-combobox-item-group id="group2" label="group2">
+            <calcite-combobox-item id="value4" value="value4" text-label="value4"></calcite-combobox-item>
+            <calcite-combobox-item id="value5" value="value5" text-label="value5"></calcite-combobox-item>
+            <calcite-combobox-item id="value6" value="value6" text-label="value6"></calcite-combobox-item>
+          </calcite-combobox-item-group>
+        </calcite-combobox>`,
+      );
+
+      const combobox = await page.find("calcite-combobox");
+      await combobox.click();
+      await page.waitForChanges();
+      await combobox.type("group");
+      await page.waitForChanges();
+      await page.waitForTimeout(DEBOUNCE.filter);
+
+      const one = await page.find("#value1");
+      const two = await page.find("#value2");
+      const three = await page.find("#value3");
+      const four = await page.find("#value4");
+      const five = await page.find("#value5");
+      const six = await page.find("#value6");
+      const group1 = await page.find("#group1");
+      const group2 = await page.find("#group2");
+
+      expect(await group1.isVisible()).toBeTruthy();
+      expect(await one.isVisible()).toBeTruthy();
+      expect(await two.isVisible()).toBeTruthy();
+      expect(await three.isVisible()).toBeTruthy();
+      expect(await group2.isVisible()).toBeTruthy();
+      expect(await four.isVisible()).toBeTruthy();
+      expect(await five.isVisible()).toBeTruthy();
+      expect(await six.isVisible()).toBeTruthy();
+
+      await combobox.type("1");
+      await page.waitForChanges();
+      await page.waitForTimeout(DEBOUNCE.filter);
+
+      expect(await group1.isVisible()).toBeTruthy();
+      expect(await one.isVisible()).toBeTruthy();
+      expect(await two.isVisible()).toBeTruthy();
+      expect(await three.isVisible()).toBeTruthy();
+      expect(await group2.isVisible()).toBeFalsy();
+      expect(await four.isVisible()).toBeFalsy();
+      expect(await five.isVisible()).toBeFalsy();
+      expect(await six.isVisible()).toBeFalsy();
+    });
+
     it("should restore filter text when no items are filtered", async () => {
       const page = await newE2EPage();
       await page.setContent(html`
@@ -555,17 +611,17 @@ describe("calcite-combobox", () => {
       await page.waitForChanges();
       await combobox.type("an");
       await page.waitForChanges();
-      await new Promise((res) => setTimeout(() => res(true), DEBOUNCE.filter));
+      await page.waitForTimeout(DEBOUNCE.filter);
+
       const one = await page.find("#one");
       const two = await page.find("#two");
       const three = await page.find("#three");
-
       expect(await one.isVisible()).toBeFalsy();
       expect(await two.isVisible()).toBeFalsy();
       expect(await three.isVisible()).toBeTruthy();
 
       await combobox.type("m");
-      await new Promise((res) => setTimeout(() => res(true), DEBOUNCE.filter));
+      await page.waitForTimeout(DEBOUNCE.filter);
       await page.waitForChanges();
       expect(await one.isVisible()).toBeFalsy();
       expect(await two.isVisible()).toBeFalsy();

packages/calcite-components/src/components/combobox/combobox.tsx

@@ -69,7 +69,7 @@ import { componentOnReady, getIconScale } from "../../utils/component";
 import { Validation } from "../functional/Validation";
 import { IconNameOrString } from "../icon/interfaces";
 import { ComboboxMessages } from "./assets/combobox/t9n";
-import { ComboboxChildElement, SelectionDisplay } from "./interfaces";
+import { ComboboxChildElement, SelectionDisplay, GroupData, ItemData } from "./interfaces";
 import { ComboboxChildSelector, ComboboxItem, ComboboxItemGroup, CSS, IDS } from "./resources";
 import {
   getItemAncestors,
@@ -79,14 +79,6 @@ import {
   isSingleLike,
 } from "./utils";
 
-interface ItemData {
-  description: string;
-  label: string;
-  metadata: Record<string, unknown>;
-  shortHeading: string;
-  value: string;
-}
-
 const isGroup = (el: ComboboxChildElement): el is HTMLCalciteComboboxItemGroupElement =>
   el.tagName === ComboboxItemGroup;
 
@@ -598,6 +590,8 @@ export class Combobox
 
   private data: ItemData[];
 
+  private groupData: GroupData[];
+
   mutationObserver = createObserver("mutation", () => this.updateItems());
 
   private resizeObserver = createObserver("resize", () => {
@@ -1087,7 +1081,7 @@ export class Combobox
       );
 
     return debounce((text: string, setOpenToEmptyState = false, emit = true): void => {
-      const filteredData = filter(this.data, text);
+      const filteredData = filter([...this.data, ...this.groupData], text);
       const itemsAndGroups = this.getItemsAndGroups();
 
       const matchAll = text === "";
@@ -1222,6 +1216,7 @@ export class Combobox
     this.items = this.getItems();
     this.groupItems = this.getGroupItems();
     this.data = this.getData();
+    this.groupData = this.getGroupData();
     this.selectedItems = this.getSelectedItems();
     this.filteredItems = this.getFilteredItems();
     this.needsIcon = this.getNeedsIcon();
@@ -1259,6 +1254,12 @@ export class Combobox
     }));
   }
 
+  getGroupData(): GroupData[] {
+    return this.groupItems.map((groupItem: HTMLCalciteComboboxItemGroupElement) => ({
+      label: groupItem.label,
+    }));
+  }
+
   getNeedsIcon(): boolean {
     return isSingleLike(this.selectionMode) && this.items.some((item) => item.icon);
   }

packages/calcite-components/src/components/combobox/interfaces.ts

@@ -1,2 +1,14 @@
 export type ComboboxChildElement = HTMLCalciteComboboxItemElement | HTMLCalciteComboboxItemGroupElement;
 export type SelectionDisplay = "all" | "fit" | "single";
+
+export interface ItemData {
+  description: string;
+  label: string;
+  metadata: Record<string, unknown>;
+  shortHeading: string;
+  value: string;
+}
+
+export interface GroupData {
+  label: string;
+}