feat(ui-shell): refactor UI Shell search component

COMPONENT_INDEX.md

@@ -1,6 +1,6 @@
 # Component Index
 
-> 154 components exported from carbon-components-svelte@0.23.2.
+> 155 components exported from carbon-components-svelte@0.23.2.
 
 ## Components
 
@@ -57,6 +57,7 @@
 - [`HeaderPanelDivider`](#headerpaneldivider)
 - [`HeaderPanelLink`](#headerpanellink)
 - [`HeaderPanelLinks`](#headerpanellinks)
+- [`HeaderSearch`](#headersearch)
 - [`HeaderUtilities`](#headerutilities)
 - [`Icon`](#icon)
 - [`IconSkeleton`](#iconskeleton)
@@ -1609,6 +1610,47 @@ None.
 
 None.
 
+## `HeaderSearch`
+
+### Types
+
+```ts
+export interface HeaderSearchResult {
+  href: string;
+  text: string;
+  description?: string;
+}
+```
+
+### Props
+
+| Prop name           | Kind             | Reactive | Type                                      | Default value      | Description                                        |
+| :------------------ | :--------------- | :------- | :---------------------------------------- | ------------------ | -------------------------------------------------- |
+| selectedResultIndex | <code>let</code> | Yes      | <code>number</code>                       | <code>-1</code>    | Specify the selected result index                  |
+| ref                 | <code>let</code> | Yes      | <code>null &#124; HTMLInputElement</code> | <code>null</code>  | Obtain a reference to the input HTML element       |
+| active              | <code>let</code> | Yes      | <code>boolean</code>                      | <code>false</code> | Set to `true` to activate and focus the search bar |
+| value               | <code>let</code> | Yes      | <code>string</code>                       | <code>""</code>    | Specify the search input value                     |
+| results             | <code>let</code> | No       | <code>HeaderSearchResult[]</code>         | <code>[]</code>    | Render a list of search results                    |
+
+### Slots
+
+| Slot name | Default | Props                         | Fallback                                                                                                      |
+| :-------- | :------ | :---------------------------- | :------------------------------------------------------------------------------------------------------------ |
+| --        | Yes     | <code>{ result: any } </code> | <code>{result.text}<br /> {#if result.description}&lt;span&gt;– {result.description}&lt;/span&gt;{/if}</code> |
+
+### Events
+
+| Event name | Type       | Detail                                                                                          |
+| :--------- | :--------- | :---------------------------------------------------------------------------------------------- |
+| clear      | dispatched | <code>any</code>                                                                                |
+| search     | dispatched | <code>{ value: string; selectedResultIndex: number; selectedResult: HeaderSearchResult }</code> |
+| change     | forwarded  | --                                                                                              |
+| input      | forwarded  | --                                                                                              |
+| focus      | forwarded  | --                                                                                              |
+| blur       | forwarded  | --                                                                                              |
+| keydown    | forwarded  | --                                                                                              |
+| select     | dispatched | --                                                                                              |
+
 ## `HeaderUtilities`
 
 ### Props

docs/src/COMPONENT_API.json

@@ -1,5 +1,5 @@
 {
-  "total": 154,
+  "total": 155,
   "components": [
     {
       "moduleName": "SkeletonText",
@@ -10258,6 +10258,92 @@
       "typedefs": [],
       "rest_props": { "type": "Element", "name": "button" }
     },
+    {
+      "moduleName": "HeaderSearch",
+      "filePath": "/src/UIShell/HeaderSearch.svelte",
+      "props": [
+        {
+          "name": "value",
+          "kind": "let",
+          "description": "Specify the search input value",
+          "type": "string",
+          "value": "\"\"",
+          "isFunction": false,
+          "constant": false,
+          "reactive": true
+        },
+        {
+          "name": "active",
+          "kind": "let",
+          "description": "Set to `true` to activate and focus the search bar",
+          "type": "boolean",
+          "value": "false",
+          "isFunction": false,
+          "constant": false,
+          "reactive": true
+        },
+        {
+          "name": "ref",
+          "kind": "let",
+          "description": "Obtain a reference to the input HTML element",
+          "type": "null | HTMLInputElement",
+          "value": "null",
+          "isFunction": false,
+          "constant": false,
+          "reactive": true
+        },
+        {
+          "name": "results",
+          "kind": "let",
+          "description": "Render a list of search results",
+          "type": "HeaderSearchResult[]",
+          "value": "[]",
+          "isFunction": false,
+          "constant": false,
+          "reactive": false
+        },
+        {
+          "name": "selectedResultIndex",
+          "kind": "let",
+          "description": "Specify the selected result index",
+          "type": "number",
+          "value": "-1",
+          "isFunction": false,
+          "constant": false,
+          "reactive": true
+        }
+      ],
+      "slots": [
+        {
+          "name": "__default__",
+          "default": true,
+          "fallback": "{result.text}\n              {#if result.description}<span>– {result.description}</span>{/if}",
+          "slot_props": "{ result: any }"
+        }
+      ],
+      "events": [
+        { "type": "dispatched", "name": "clear", "detail": "any" },
+        {
+          "type": "dispatched",
+          "name": "search",
+          "detail": "{ value: string; selectedResultIndex: number; selectedResult: HeaderSearchResult }"
+        },
+        { "type": "forwarded", "name": "change", "element": "input" },
+        { "type": "forwarded", "name": "input", "element": "input" },
+        { "type": "forwarded", "name": "focus", "element": "input" },
+        { "type": "forwarded", "name": "blur", "element": "input" },
+        { "type": "forwarded", "name": "keydown", "element": "input" },
+        { "type": "dispatched", "name": "select" }
+      ],
+      "typedefs": [
+        {
+          "type": "{ href: string; text: string; description?: string; }",
+          "name": "HeaderSearchResult",
+          "ts": "interface HeaderSearchResult { href: string; text: string; description?: string; }"
+        }
+      ],
+      "rest_props": { "type": "Element", "name": "input" }
+    },
     {
       "moduleName": "UnorderedList",
       "filePath": "/src/UnorderedList/UnorderedList.svelte",

docs/src/pages/components/UIShell.svx

@@ -4,7 +4,7 @@
 components: ["Header",
 "HeaderAction",
 "HeaderActionLink",
-"HeaderActionSearch",
+"HeaderSearch",
 "HeaderNav",
 "HeaderNavItem",
 "HeaderNavMenu",
@@ -34,6 +34,10 @@ components: ["Header",
 
 <FileSource src="/framed/UIShell/HeaderSwitcher" />
 
+### Header with global search
+
+<FileSource src="/framed/UIShell/HeaderSearch" />
+
 ### Header with utilities
 
 <FileSource src="/framed/UIShell/HeaderUtilities" />

docs/src/pages/framed/UIShell/HeaderSearch.svelte

@@ -0,0 +1,114 @@
+<script>
+  import {
+    Header,
+    HeaderUtilities,
+    HeaderAction,
+    HeaderSearch,
+    HeaderPanelLinks,
+    HeaderPanelDivider,
+    HeaderPanelLink,
+    SideNav,
+    SideNavItems,
+    SideNavMenu,
+    SideNavMenuItem,
+    SideNavLink,
+    SkipToContent,
+    Content,
+    Grid,
+    Row,
+    Column,
+  } from "carbon-components-svelte";
+
+  let isSideNavOpen = false;
+  let isOpen = false;
+
+  let ref = null;
+  let active = false;
+  let value = "";
+  let selectedResultIndex = 1;
+
+  $: results =
+    value.length > 2
+      ? [
+          {
+            href: "/",
+            text: "Result 1",
+            description: "Result description",
+          },
+          {
+            href: "/",
+            text: "Result 2",
+            description: "Result description",
+          },
+          {
+            href: "/",
+            text: "Result 3",
+            description: "Result description",
+          },
+        ]
+      : [];
+
+  $: console.log("ref", ref);
+  $: console.log("active", active);
+  $: console.log("value", value);
+  $: console.log("selectedResultIndex", selectedResultIndex);
+</script>
+
+<Header company="IBM" platformName="Carbon Svelte" bind:isSideNavOpen>
+  <div slot="skip-to-content">
+    <SkipToContent />
+  </div>
+  <HeaderUtilities>
+    <HeaderSearch
+      bind:ref
+      bind:active
+      bind:value
+      on:search="{(e) => {
+        console.log('on:search', e.detail);
+      }}"
+      on:clear="{() => {
+        console.log('on:clear');
+      }}"
+      on:select="{(e) => {
+        console.log('on:select', e.detail);
+      }}"
+      results="{results}"
+      bind:selectedResultIndex
+    />
+    <HeaderAction bind:isOpen>
+      <HeaderPanelLinks>
+        <HeaderPanelDivider>Switcher subject 1</HeaderPanelDivider>
+        <HeaderPanelLink>Switcher item 1</HeaderPanelLink>
+        <HeaderPanelDivider>Switcher subject 2</HeaderPanelDivider>
+        <HeaderPanelLink>Switcher item 1</HeaderPanelLink>
+        <HeaderPanelLink>Switcher item 2</HeaderPanelLink>
+        <HeaderPanelLink>Switcher item 3</HeaderPanelLink>
+        <HeaderPanelLink>Switcher item 4</HeaderPanelLink>
+        <HeaderPanelLink>Switcher item 5</HeaderPanelLink>
+      </HeaderPanelLinks>
+    </HeaderAction>
+  </HeaderUtilities>
+</Header>
+
+<SideNav bind:isOpen="{isSideNavOpen}">
+  <SideNavItems>
+    <SideNavLink text="Link 1" />
+    <SideNavLink text="Link 2" />
+    <SideNavLink text="Link 3" />
+    <SideNavMenu text="Menu">
+      <SideNavMenuItem href="/" text="Link 1" />
+      <SideNavMenuItem href="/" text="Link 2" />
+      <SideNavMenuItem href="/" text="Link 3" />
+    </SideNavMenu>
+  </SideNavItems>
+</SideNav>
+
+<Content>
+  <Grid>
+    <Row>
+      <Column>
+        <h1>Welcome</h1>
+      </Column>
+    </Row>
+  </Grid>
+</Content>

docs/src/pages/framed/UIShell/HeaderUtilities.svelte

@@ -3,7 +3,6 @@
     Header,
     HeaderUtilities,
     HeaderAction,
-    HeaderActionSearch,
     HeaderGlobalAction,
     HeaderPanelLinks,
     HeaderPanelDivider,
@@ -30,7 +29,6 @@
     <SkipToContent />
   </div>
   <HeaderUtilities>
-    <HeaderActionSearch />
     <HeaderGlobalAction aria-label="Settings" icon="{SettingsAdjust20}" />
     <HeaderAction bind:isOpen>
       <HeaderPanelLinks>

src/UIShell/GlobalHeader/HeaderActionSearch.svelte

@@ -1,4 +1,10 @@
 <script>
+  /**
+   * @deprecated
+   * This component will be removed in version 1.0.0.
+   * Use `HeaderSearch` instead
+   */
+
   /**
    * @event {{ action: "search"; textInput: string; }} inputSearch
    */

src/UIShell/HeaderSearch.svelte

@@ -0,0 +1,278 @@
+<script>
+  /**
+   * @typedef {{ href: string; text: string; description?: string; }} HeaderSearchResult
+   * @event {any} clear
+   * @event {{ value: string; selectedResultIndex: number; selectedResult: HeaderSearchResult }} search
+   */
+
+  /** Specify the search input value */
+  export let value = "";
+
+  /** Set to `true` to activate and focus the search bar */
+  export let active = false;
+
+  /** Obtain a reference to the input HTML element */
+  export let ref = null;
+
+  /**
+   * Render a list of search results
+   * @type {HeaderSearchResult[]}
+   */
+  export let results = [];
+
+  /** Specify the selected result index */
+  export let selectedResultIndex = -1;
+
+  import { createEventDispatcher } from "svelte";
+  import Close20 from "carbon-icons-svelte/lib/Close20/Close20.svelte";
+  import Search20 from "carbon-icons-svelte/lib/Search20/Search20.svelte";
+
+  const dispatch = createEventDispatcher();
+
+  let refSearch = null;
+
+  $: if (active && ref) ref.focus();
+  $: selectedResult = results[selectedResultIndex];
+  $: selectedId = selectedResult
+    ? `search-menuitem-${selectedResultIndex}`
+    : undefined;
+</script>
+
+<style>
+  label {
+    position: absolute;
+    width: 1px;
+    height: 1px;
+    margin: -1px;
+    padding: 0;
+    overflow: hidden;
+    white-space: nowrap;
+    border: 0;
+    visibility: inherit;
+    clip: rect(0, 0, 0, 0);
+  }
+
+  [role="search"] {
+    position: relative;
+    display: flex;
+    max-width: 28rem;
+    width: 100%;
+    margin-left: 0.5rem;
+    height: 3rem;
+    background-color: #393939;
+    color: #fff;
+    transition: max-width 0.11s cubic-bezier(0.2, 0, 0.38, 0.9),
+      background 0.11s cubic-bezier(0.2, 0, 0.38, 0.9);
+  }
+
+  [role="search"]:not(.active) {
+    max-width: 3rem;
+    background-color: #161616;
+  }
+
+  [role="search"].active {
+    outline: 2px solid #fff;
+    outline-offset: -2px;
+  }
+
+  [role="combobox"] {
+    display: flex;
+    flex-grow: 1;
+    border-bottom: 1px solid #393939;
+  }
+
+  input {
+    width: 100%;
+    height: 3rem;
+    padding: 0;
+    font-size: 1rem;
+    font-weight: 400;
+    line-height: 1.375rem;
+    letter-spacing: 0;
+    color: #fff;
+    caret-color: #fff;
+    background-color: initial;
+    border: none;
+    outline: none;
+    transition: opacity 0.11s cubic-bezier(0.2, 0, 0.38, 0.9);
+  }
+
+  input:not(.active) {
+    opacity: 0;
+    pointer-events: none;
+  }
+
+  button {
+    width: 3rem;
+    height: 100%;
+    padding: 0;
+    flex-shrink: 0;
+    opacity: 1;
+    transition: background-color 0.11s cubic-bezier(0.2, 0, 0.38, 0.9),
+      opacity 0.11s cubic-bezier(0.2, 0, 0.38, 0.9);
+  }
+
+  .disabled {
+    border: none;
+    pointer-events: none;
+  }
+
+  [aria-label="Clear search"]:hover {
+    background-color: #4c4c4c;
+  }
+
+  .hidden {
+    opacity: 0;
+    display: none;
+  }
+
+  ul {
+    position: absolute;
+    z-index: 10000;
+    padding: 1rem 0;
+    left: 0;
+    right: 0;
+    top: 3rem;
+    background-color: #161616;
+    border: 1px solid #393939;
+    border-top: none;
+    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.5);
+  }
+
+  [role="menuitem"] {
+    padding: 6px 1rem;
+    cursor: pointer;
+    font-size: 0.875rem;
+    font-weight: 600;
+    line-height: 1.29;
+    letter-spacing: 0.16px;
+    transition: all 70ms cubic-bezier(0.2, 0, 0.38, 0.9);
+    display: block;
+    text-decoration: none;
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    color: #c6c6c6;
+  }
+
+  .selected,
+  [role="menuitem"]:hover {
+    background-color: #353535;
+    color: #f4f4f4;
+  }
+
+  [role="menuitem"] span {
+    font-size: 0.75rem;
+    font-weight: 400;
+    line-height: 1.34;
+    letter-spacing: 0.32px;
+    text-transform: lowercase;
+    color: #c6c6c6;
+  }
+</style>
+
+<svelte:window
+  on:mouseup="{({ target }) => {
+    if (active && !refSearch.contains(target)) active = false;
+  }}"
+/>
+
+<div bind:this="{refSearch}" role="search" class:active>
+  <label for="search-input" id="search-label">Search</label>
+  <div role="combobox" aria-expanded="{active}">
+    <button
+      type="button"
+      aria-label="Search"
+      tabindex="{active ? '-1' : '0'}"
+      class:bx--header__action="{true}"
+      class:disabled="{active}"
+      on:click="{() => {
+        active = true;
+      }}"
+    >
+      <Search20 title="Search" />
+    </button>
+    <input
+      bind:this="{ref}"
+      type="text"
+      autocomplete="off"
+      placeholder="Search..."
+      tabindex="{active ? '0' : '-1'}"
+      class:active
+      {...$$restProps}
+      id="search-input"
+      aria-activedescendant="{selectedId}"
+      bind:value
+      on:change
+      on:input
+      on:focus
+      on:blur
+      on:keydown
+      on:keydown="{({ key }) => {
+        switch (key) {
+          case 'Enter':
+            active = false;
+            value = '';
+            dispatch('select', { value, selectedResultIndex, selectedResult });
+            break;
+          case 'ArrowDown':
+            if (selectedResultIndex === results.length - 1) {
+              selectedResultIndex = 0;
+            } else {
+              selectedResultIndex += 1;
+            }
+            break;
+          case 'ArrowUp':
+            if (selectedResultIndex === 0) {
+              selectedResultIndex = results.length - 1;
+            } else {
+              selectedResultIndex -= 1;
+            }
+            break;
+        }
+      }}"
+    />
+    <button
+      type="button"
+      aria-label="Clear search"
+      tabindex="{active ? '0' : '-1'}"
+      class:bx--header__action="{true}"
+      class:hidden="{!active}"
+      on:click="{() => {
+        active = false;
+        value = '';
+        dispatch('clear');
+      }}"
+    >
+      <Close20 title="Close" />
+    </button>
+  </div>
+
+  {#if active && results.length > 0}
+    <ul aria-labelledby="search-label" role="menu" id="search-menu">
+      {#each results as result, i}
+        <li>
+          <a
+            tabindex="-1"
+            id="search-menuitem-{i}"
+            role="menuitem"
+            href="{result.href}"
+            class:selected="{selectedId === `search-menuitem-${i}`}"
+            on:click|preventDefault="{() => {
+              dispatch('select', {
+                value,
+                selectedResultIndex,
+                selectedResult,
+              });
+            }}"
+          >
+            <slot result="{result}">
+              {result.text}
+              {#if result.description}<span>– {result.description}</span>{/if}
+            </slot>
+          </a>
+        </li>
+      {/each}
+    </ul>
+  {/if}
+</div>

src/UIShell/index.js

@@ -17,3 +17,4 @@ export { default as SideNavMenuItem } from "./SideNav/SideNavMenuItem.svelte";
 export { default as Content } from "./Content.svelte";
 export { default as SkipToContent } from "./SkipToContent.svelte";
 export { default as HeaderGlobalAction } from "./HeaderGlobalAction.svelte";
+export { default as HeaderSearch } from "./HeaderSearch.svelte";

src/index.js

@@ -134,5 +134,6 @@ export {
   Content,
   SkipToContent,
   HeaderGlobalAction,
+  HeaderSearch,
 } from "./UIShell";
 export { UnorderedList } from "./UnorderedList";

types/UIShell/HeaderSearch.d.ts

@@ -0,0 +1,59 @@
+/// <reference types="svelte" />
+
+export interface HeaderSearchResult {
+  href: string;
+  text: string;
+  description?: string;
+}
+
+export interface HeaderSearchProps extends svelte.JSX.HTMLAttributes<HTMLElementTagNameMap["input"]> {
+  /**
+   * Specify the search input value
+   * @default ""
+   */
+  value?: string;
+
+  /**
+   * Set to `true` to activate and focus the search bar
+   * @default false
+   */
+  active?: boolean;
+
+  /**
+   * Obtain a reference to the input HTML element
+   * @default null
+   */
+  ref?: null | HTMLInputElement;
+
+  /**
+   * Render a list of search results
+   * @default []
+   */
+  results?: HeaderSearchResult[];
+
+  /**
+   * Specify the selected result index
+   * @default -1
+   */
+  selectedResultIndex?: number;
+}
+
+export default class HeaderSearch {
+  $$prop_def: HeaderSearchProps;
+  $$slot_def: {
+    default: { result: any };
+  };
+
+  $on(eventname: "clear", cb: (event: CustomEvent<any>) => void): () => void;
+  $on(
+    eventname: "search",
+    cb: (event: CustomEvent<{ value: string; selectedResultIndex: number; selectedResult: HeaderSearchResult }>) => void
+  ): () => void;
+  $on(eventname: "change", cb: (event: WindowEventMap["change"]) => void): () => void;
+  $on(eventname: "input", cb: (event: WindowEventMap["input"]) => void): () => void;
+  $on(eventname: "focus", cb: (event: WindowEventMap["focus"]) => void): () => void;
+  $on(eventname: "blur", cb: (event: WindowEventMap["blur"]) => void): () => void;
+  $on(eventname: "keydown", cb: (event: WindowEventMap["keydown"]) => void): () => void;
+  $on(eventname: "select", cb: (event: CustomEvent<any>) => void): () => void;
+  $on(eventname: string, cb: (event: Event) => void): () => void;
+}

types/index.d.ts

@@ -151,4 +151,5 @@ export { default as SideNavMenuItem } from "./UIShell/SideNav/SideNavMenuItem";
 export { default as Content } from "./UIShell/Content";
 export { default as SkipToContent } from "./UIShell/SkipToContent";
 export { default as HeaderGlobalAction } from "./UIShell/HeaderGlobalAction";
+export { default as HeaderSearch } from "./UIShell/HeaderSearch";
 export { default as UnorderedList } from "./UnorderedList/UnorderedList";