Search bar

A field whose magnifier greets the cursor, and whose clear button draws itself once the typing has stopped.

Take it with you

This demo also exists as a standalone project — npm install && npm run dev, no changes needed.

npx giget@latest gh:lordicondev/ui-components/search-bar#standalone search-bar

Copies the search-bar folder of the standalone branch — where every demo lives on its own — into ./search-bar.

How it works

Define the element, put the icon in the markup, set the control's state. Then the parts that make this demo different.

Define the element Built-in triggers only. What each icon follows is written in its markup.

import { defineElement } from '@lordicon/element';

// Registers <lord-icon> with its built-in triggers. The markup says what each icon follows.
defineElement();

import { defineElement } from '@lordicon/element';

// Registers <lord-icon> with its built-in triggers. The markup says what each icon follows.
defineElement();

The field Two attributes on the wrapper. Each icon follows one of them.

html

<!-- data-focused: focus is in the field. data-clearable: there is text to
     clear. Each icon follows one; the stylesheet follows both. -->
<div class="field" data-focused="false" data-clearable="false">
    <label class="visually-hidden" for="q">Search</label>

    <lord-icon
        class="field__mark"
        current-color
        src="icons/magnifier.json"
        loading="interaction"
        trigger="follow(data-focused)"
        target=".field"
        aria-hidden="true"
    >
        <img alt="" src="icons/magnifier.svg" />
    </lord-icon>

    <input class="field__input" id="q" type="search" placeholder="Search" />
    <!-- … -->
</div>

The clear button state="in-reveal" is why the cross draws itself in.

html

<!-- in-reveal starts from an empty frame, so the cross draws itself in.
     The stylesheet shows the button on the same attribute. -->
<button class="field__clear" type="button" aria-label="Clear search">
    <lord-icon
        class="field__mark"
        current-color
        src="icons/cross.json"
        loading="interaction"
        trigger="follow(data-clearable)"
        target=".field"
        state="in-reveal"
        aria-hidden="true"
    ></lord-icon>
</button>

When the clear button appears From shared/ui/field.ts: half a second after the typing pauses.

// The clear button appears once the typing pauses, not on every keystroke.
input.addEventListener('input', () => {
    clearTimeout(settling);

    if (!input.value) return offer(false);

    // Once shown it stays, so it is there when reached for.
    if (field.dataset.clearable === 'true') return;

    settling = setTimeout(() => offer(true), settled);
});

// The clear button appears once the typing pauses, not on every keystroke.
input.addEventListener('input', () => {
    clearTimeout(settling);

    if (!input.value) return offer(false);

    // Once shown it stays, so it is there when reached for.
    if (field.dataset.clearable === 'true') return;

    settling = setTimeout(() => offer(true), settled);
});

Hidden but still taking up room From shared/ui/field.css. The stylesheet reads the same attribute the icon does.

css

/* `visibility` rather than `hidden`: the button keeps its box, so the field does not
   change width when it appears. It is out of the tab order either way. */
.field__clear {
    display: grid;
    place-items: center;
    visibility: hidden;
    padding: 0;
    border: 0;
    background: none;
    color: var(--ink-muted);
    cursor: pointer;
}

.field[data-clearable='true'] .field__clear {
    visibility: visible;
}

Every file

The demo's own files, whole, at the paths the export uses.

index.html 49 lines

html

<!doctype html>
<html lang="en">
    <head>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1" />
        <title>Search bar</title>
        <link rel="stylesheet" href="./search-bar.css" />
        <script type="module" src="./main.ts"></script>
    </head>
    <body>
        <main class="demo">
            <form class="search" role="search">
                <!-- data-focused: focus is in the field. data-clearable: there is text to
                     clear. Each icon follows one; the stylesheet follows both. -->
                <div class="field" data-focused="false" data-clearable="false">
                    <label class="visually-hidden" for="q">Search</label>

                    <lord-icon
                        class="field__mark"
                        current-color
                        src="icons/magnifier.json"
                        loading="interaction"
                        trigger="follow(data-focused)"
                        target=".field"
                        aria-hidden="true"
                    >
                        <img alt="" src="icons/magnifier.svg" />
                    </lord-icon>

                    <input class="field__input" id="q" type="search" placeholder="Search" />
                    <!-- in-reveal starts from an empty frame, so the cross draws itself in.
                         The stylesheet shows the button on the same attribute. -->
                    <button class="field__clear" type="button" aria-label="Clear search">
                        <lord-icon
                            class="field__mark"
                            current-color
                            src="icons/cross.json"
                            loading="interaction"
                            trigger="follow(data-clearable)"
                            target=".field"
                            state="in-reveal"
                            aria-hidden="true"
                        ></lord-icon>
                    </button>
                </div>
            </form>
        </main>
    </body>
</html>

main.ts 9 lines

import { defineElement } from '@lordicon/element';

// Registers <lord-icon> with its built-in triggers. The markup says what each icon follows.
defineElement();

import { fields } from '@shared/ui/field.ts';

// fields() writes the two attributes the icons watch. That module is the whole demo.
fields();

import { defineElement } from '@lordicon/element';

// Registers <lord-icon> with its built-in triggers. The markup says what each icon follows.
defineElement();

import { fields } from '@shared/ui/field.js';

// fields() writes the two attributes the icons watch. That module is the whole demo.
fields();

search-bar.css 13 lines

css

@import '@shared/styles/index.css';
@import '@shared/ui/field.css';

.demo {
    display: grid;
    place-items: center;
    min-height: 100dvh;
    padding: var(--space-64) var(--gutter);
}

.search {
    width: min(374px, 100%);
}

What it imports 6 shared files

shared/styles/base.css 115 lines

css

/*
 * Fonts, reset and default typography. Nothing control-specific: every demo styles its
 * own control. Only the UI face is here; the mono face is the portal's.
 */
@font-face {
    font-family: 'Figtree';
    font-style: normal;
    font-weight: 300 900;
    font-display: swap;
    src: url('../fonts/figtree-latin.woff2') format('woff2');
    unicode-range:
        U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308,
        U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
    font-family: 'Figtree';
    font-style: normal;
    font-weight: 300 900;
    font-display: swap;
    src: url('../fonts/figtree-latin-ext.woff2') format('woff2');
    unicode-range:
        U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329,
        U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113,
        U+2C60-2C7F, U+A720-A7FF;
}

/* Arial with Figtree's measurements, for the moment before Figtree arrives, so the text does
   not move when it does. Measured on Figtree at 400 and 500. */
@font-face {
    font-family: 'Figtree fallback';
    src: local('Arial'), local('Liberation Sans');
    size-adjust: 100.3%;
    ascent-override: 94.7%;
    descent-override: 24.9%;
    line-gap-override: 0%;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

/* An author `display` on a component would beat the UA rule for [hidden], and then
   `el.hidden = true` would stop working. Settled once here. */
[hidden] {
    display: none !important;
}

body {
    margin: 0;
    background: var(--surface);
    color: var(--ink);
    --icon-filter: var(--filter-ink);
    font-family: var(--font-ui);
    font-size: var(--text-base);
    line-height: var(--leading-base);
    -webkit-font-smoothing: antialiased;
}

button,
input,
textarea,
select {
    font: inherit;
    color: inherit;
}

/* A second click on a button would otherwise select its label. */
button {
    -webkit-user-select: none;
    user-select: none;
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/*
 * In the accessibility tree but not on screen: labels and legends that the visual design
 * has no room for. Clipped rather than `display: none`, which would remove it from the
 * tree too, and it also hides live radio inputs that must stay reachable by keyboard.
 */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
}

/*
 * Until the script defines <lord-icon> it is an unknown inline element with no size. These
 * rules give it the box it will have, so nothing moves when it is defined.
 */
lord-icon {
    display: inline-block;
    width: var(--icon-size-32);
    height: var(--icon-size-32);
}

/* A placeholder inside the icon fills it until the icon is ready. */
lord-icon:not(:defined) > img {
    display: block;
    width: 100%;
    height: 100%;
}

/* Placeholders are black. Set --icon-filter wherever an icon's colour is set. */
lord-icon > img {
    filter: var(--icon-filter);
}

shared/styles/index.css 4 lines

css

/* The one stylesheet a demo imports. */
@import './palette.css';
@import './tokens.css';
@import './base.css';

shared/styles/palette.css 87 lines

css

/*
 * Generated from the Figma token export.
 * Raw values only — roles live in tokens.css. Edit the Figma variables, not this file.
 */
:root {
    /* color/ink */
    --gray-0: #FFFFFF;
    --gray-50: #F7F8FA;
    --gray-100: #EEF0F3;
    --gray-200: #DEE1E6;
    --gray-300: #C3C7D0;
    --gray-400: #9BA1AD;
    --gray-500: #767C89;
    --gray-600: #565C68;
    --gray-700: #3D414B;
    --gray-800: #282B33;
    --gray-900: #16181D;
    --gray-950: #0A0B0E;

    /* color/signal */
    --brand-100: #FFEEE9;
    --brand-200: #FFD7CA;
    --brand-300: #FFB199;
    --brand-400: #FF7D5C;
    --brand-500: #FF5A36;
    --brand-600: #E8431F;
    --brand-700: #C2340F;

    /* color/success */
    --green-100: #EDF9F1;
    --green-300: #A7D9BC;
    --green-700: #15803D;

    /* color/error */
    --red-100: #FDECEC;
    --red-300: #F5B5B5;
    --red-700: #DC2626;

    /* typography/font */
    --font-ui-name: 'Figtree';
    --font-mono-name: 'JetBrains Mono';

    /* typography/size */
    --text-xs: 12px;
    --text-sm: 14px;
    --text-base: 16px;
    --text-lg: 20px;
    --text-xl: 24px;
    --text-2xl: 32px;
    --text-3xl: 40px;

    /* typography/lineHeight */
    --leading-xs: 16px;
    --leading-sm: 20px;
    --leading-base: 24px;
    --leading-lg: 28px;
    --leading-xl: 32px;
    --leading-2xl: 40px;
    --leading-3xl: 48px;

    /* spacing (named after the value, the Figma scale is non-linear) */
    --space-4: 4px;
    --space-8: 8px;
    --space-12: 12px;
    --space-16: 16px;
    --space-24: 24px;
    --space-32: 32px;
    --space-48: 48px;
    --space-64: 64px;
    --space-96: 96px;

    /* size/icon */
    --icon-size-16: 16px;
    --icon-size-20: 20px;
    --icon-size-24: 24px;
    --icon-size-32: 32px;
    --icon-size-40: 40px;
    --icon-size-48: 48px;
    --icon-size-64: 64px;
    --icon-size-96: 96px;

    /* radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-pill: 9999px;
}

shared/styles/tokens.css 93 lines

css

/*
 * Design tokens by role. Raw values come from palette.css (generated); which grey is a
 * border and which is muted text is decided here, and so would a dark mode be.
 */
:root {
    /* Text. `--ink*` is always a colour; `--text-*` is always a size. */
    --ink: var(--gray-950);
    /* Text that reads as done or in progress, a step lighter than a heading. */
    --ink-strong: var(--gray-800);
    /* Body copy: a step down from --ink. */
    --ink-soft: var(--gray-600);
    --ink-muted: var(--gray-500);
    --ink-subtle: var(--gray-400);
    /* What has not started yet. */
    --ink-faint: var(--gray-300);
    --ink-inverse: var(--gray-0);

    /* Backgrounds */
    --surface: var(--gray-0);
    --surface-muted: var(--gray-50);
    /* A well inside a surface: the filled shape a single icon sits in. */
    --surface-sunken: var(--gray-100);

    /* Outlines */
    --border: var(--gray-200);
    /* The edge of a box that already has a fill, such as an input. */
    --border-soft: var(--gray-100);
    --border-strong: var(--gray-300);
    --border-accent: var(--brand-400);

    /* Brand accent */
    --accent: var(--brand-500);
    --accent-strong: var(--brand-600);
    --accent-surface: var(--brand-100);
    /* The outline of a tinted box, or a small shape on one. */
    --accent-border: var(--brand-300);
    /* Text or a mark on either of the above. */
    --accent-ink: var(--brand-700);

    /* Status. Warning rides the brand ramp — that is what the designs use. */
    --success: var(--green-700);
    --success-surface: var(--green-100);
    --success-border: var(--green-300);

    --warning: var(--brand-500);
    --warning-surface: var(--brand-100);
    --warning-border: var(--brand-300);

    --danger: var(--red-700);
    --danger-surface: var(--red-100);
    --danger-border: var(--red-300);

    /* Icons. Fed straight into --lord-icon-* by the demos. */
    --icon-color: var(--gray-950);
    --icon-accent: var(--brand-500);

    /* Icon placeholders are black SVGs. Each filter turns black into the colour of the same
       name. Made with a CSS filter generator: make a new one when its colour changes. */
    --filter-ink: invert(2%) sepia(4%) saturate(4817%) hue-rotate(193deg) brightness(114%)
        contrast(96%);
    --filter-ink-soft: invert(33%) sepia(18%) saturate(323%) hue-rotate(182deg) brightness(100%)
        contrast(90%);
    --filter-ink-muted: invert(55%) sepia(23%) saturate(191%) hue-rotate(181deg) brightness(84%)
        contrast(89%);
    --filter-ink-subtle: invert(70%) sepia(11%) saturate(284%) hue-rotate(181deg) brightness(91%)
        contrast(86%);
    --filter-ink-faint: invert(76%) sepia(17%) saturate(99%) hue-rotate(184deg) brightness(99%)
        contrast(100%);
    --filter-ink-inverse: invert(100%);
    --filter-accent: invert(49%) sepia(65%) saturate(3508%) hue-rotate(337deg) brightness(106%)
        contrast(113%);
    --filter-accent-strong: invert(29%) sepia(85%) saturate(1790%) hue-rotate(350deg)
        brightness(94%) contrast(93%);
    --filter-success: invert(38%) sepia(22%) saturate(2045%) hue-rotate(94deg) brightness(92%)
        contrast(84%);
    --filter-warning: var(--filter-accent);
    --filter-danger: invert(48%) sepia(74%) saturate(7139%) hue-rotate(343deg) brightness(84%)
        contrast(105%);

    /* Type stacks. The families themselves are in palette.css. */
    --font-ui:
        var(--font-ui-name), 'Figtree fallback', -apple-system, BlinkMacSystemFont, 'Segoe UI',
        Roboto, sans-serif;
    --font-mono: var(--font-mono-name), ui-monospace, SFMono-Regular, Menlo, monospace;

    /* Side padding of a page. The portal uses the same value, so demo and text line up. */
    --gutter: clamp(var(--space-16), 5vw, var(--space-48));

    /* A card's halo: no offset, so it reads as lift rather than as a light source. */
    --shadow-sm: 0 0 7.5px color-mix(in srgb, var(--gray-400) 20%, transparent);
    /* The same halo under a brand-coloured element. */
    --shadow-accent: 0 0 7.5px color-mix(in srgb, var(--accent-strong) 40%, transparent);
}

shared/ui/field.css 72 lines

css

/*
 * The look of a text field wired by field.ts. A demo overrides the resting border or the
 * focused look with a rule of its own after this import.
 */
.field {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    padding: var(--space-8);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    background: var(--surface-muted);
}

.field[data-focused='true'] {
    border-color: var(--accent-border);
    box-shadow: var(--shadow-accent);
}

.field__input {
    flex: 1;
    min-width: 0;
    padding: 0;
    border: 0;
    background: none;
    color: var(--ink);
    font-weight: 500;
}

.field__input::placeholder {
    color: var(--ink-muted);
}

/* The box draws the focused state; no second ring inside it. */
.field__input:focus-visible {
    outline: none;
}

/* A search input has a clear button of its own; this field brings its own. */
.field__input::-webkit-search-cancel-button {
    appearance: none;
}

/* `visibility` rather than `hidden`: the button keeps its box, so the field does not
   change width when it appears. It is out of the tab order either way. */
.field__clear {
    display: grid;
    place-items: center;
    visibility: hidden;
    padding: 0;
    border: 0;
    background: none;
    color: var(--ink-muted);
    cursor: pointer;
}

.field[data-clearable='true'] .field__clear {
    visibility: visible;
}

.field__clear:hover {
    color: var(--ink);
}

/* Both icons take the placeholder's grey; the typed words are the only full-strength ink. */
.field__mark {
    flex: none;
    width: var(--icon-size-24);
    height: var(--icon-size-24);
    color: var(--ink-muted);
    --icon-filter: var(--filter-ink-muted);
}

shared/ui/field.ts 75 lines

/**
 * A text field that reports its state in two attributes:
 *
 *     <div class="field" data-focused="false" data-clearable="false">
 *         <lord-icon … trigger="follow(data-focused)" target=".field"></lord-icon>
 *         <input class="field__input" />
 *         <button class="field__clear">…</button>
 *     </div>
 *
 * `data-focused` is whether focus is anywhere inside the field. `data-clearable` turns true
 * once the typing has paused with something in the input, and is what shows the clear
 * button. Icons and the stylesheet read the attributes; this module only writes them.
 *
 * The clear button is optional. Without one, `data-clearable` is never set.
 */

/** How long the typing has to pause before the field offers to clear. */
const SETTLED = 500;

export type FieldOptions = { settled?: number };

/** Wires every `.field` under `root`. Called once; nothing here needs taking apart. */
export function fields(root: ParentNode = document, options: FieldOptions = {}): void {
    for (const field of root.querySelectorAll<HTMLElement>('.field')) {
        wire(field, options.settled ?? SETTLED);
    }
}

function wire(field: HTMLElement, settled: number): void {
    const input = field.querySelector<HTMLInputElement>('.field__input');
    if (!input) return;

    const clear = field.querySelector<HTMLButtonElement>('.field__clear');
    let settling: ReturnType<typeof setTimeout> | undefined;

    const offer = (clearable: boolean) => {
        clearTimeout(settling);
        field.dataset.clearable = String(clearable);
    };

    // focusin/focusout bubble, so the field counts as focused with focus on the input or
    // on the clear button.
    field.addEventListener('focusin', () => (field.dataset.focused = 'true'));

    field.addEventListener('focusout', (event) => {
        // Moving focus to the clear button is not leaving the field.
        if (field.contains(event.relatedTarget as Node | null)) return;

        field.dataset.focused = 'false';
        if (clear && input.value) offer(true);
    });

    if (!clear) return;

    // The clear button appears once the typing pauses, not on every keystroke.
    input.addEventListener('input', () => {
        clearTimeout(settling);

        if (!input.value) return offer(false);

        // Once shown it stays, so it is there when reached for.
        if (field.dataset.clearable === 'true') return;

        settling = setTimeout(() => offer(true), settled);
    });

    clear.addEventListener('click', () => {
        input.value = '';
        offer(false);
        // Setting `value` from script raises no event; anything filtering on this field
        // listens for `input`.
        input.dispatchEvent(new Event('input', { bubbles: true }));
        input.focus();
    });
}

/**
 * A text field that reports its state in two attributes:
 *
 *     <div class="field" data-focused="false" data-clearable="false">
 *         <lord-icon … trigger="follow(data-focused)" target=".field"></lord-icon>
 *         <input class="field__input" />
 *         <button class="field__clear">…</button>
 *     </div>
 *
 * `data-focused` is whether focus is anywhere inside the field. `data-clearable` turns true
 * once the typing has paused with something in the input, and is what shows the clear
 * button. Icons and the stylesheet read the attributes; this module only writes them.
 *
 * The clear button is optional. Without one, `data-clearable` is never set.
 */

/** How long the typing has to pause before the field offers to clear. */
const SETTLED = 500;

/** Wires every `.field` under `root`. Called once; nothing here needs taking apart. */
export function fields(root = document, options = {}) {
    for (const field of root.querySelectorAll('.field')) {
        wire(field, options.settled ?? SETTLED);
    }
}

function wire(field, settled) {
    const input = field.querySelector('.field__input');
    if (!input) return;

    const clear = field.querySelector('.field__clear');
    let settling;

    const offer = (clearable) => {
        clearTimeout(settling);
        field.dataset.clearable = String(clearable);
    };

    // focusin/focusout bubble, so the field counts as focused with focus on the input or
    // on the clear button.
    field.addEventListener('focusin', () => (field.dataset.focused = 'true'));

    field.addEventListener('focusout', (event) => {
        // Moving focus to the clear button is not leaving the field.
        if (field.contains(event.relatedTarget)) return;

        field.dataset.focused = 'false';
        if (clear && input.value) offer(true);
    });

    if (!clear) return;

    // The clear button appears once the typing pauses, not on every keystroke.
    input.addEventListener('input', () => {
        clearTimeout(settling);

        if (!input.value) return offer(false);

        // Once shown it stays, so it is there when reached for.
        if (field.dataset.clearable === 'true') return;

        settling = setTimeout(() => offer(true), settled);
    });

    clear.addEventListener('click', () => {
        input.value = '';
        offer(false);
        // Setting `value` from script raises no event; anything filtering on this field
        // listens for `input`.
        input.dispatchEvent(new Event('input', { bubbles: true }));
        input.focus();
    });
}

Icons

Hover a preview to play it. The icons are under the Lordicon License Terms, not the MIT licence of the code.

Preview	Used as	Lordicon icon
	`magnifier`	system-outline-19-magnifier (edited by hand)
	`cross`	system-outline-38-cross