UI Libraries
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Autocomplete
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Creating a multi-column layout
Apr. 22, 2022
Creating a multi-column layout
Improving the search experience often means adding multiple sources of data, such as in a federated search. However, displaying multiple data sources in an organized and efficient way can be challenging. To leverage the larger display on devices such as desktops and tablets, it’s recommended to display data in a multi-column layout. This allows users to navigate more quickly through the search results and reduces scrolling.
Getting started
You are going to build an Autocomplete demo composed of two columns:
- a left column taking 1/3 of the width in which the recent searches and query suggestions will be displayed.
- a right column taking up the rest of the space and focusing on displaying products.
First, begin with some boilerplate for the autocomplete implementation.
Create a file called app.js in your src directory, and add the code below:
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import { autocomplete } from '@algolia/autocomplete-js';
import '@algolia/autocomplete-theme-classic';
autocomplete({
container: '#autocomplete',
openOnFocus: true,
});
This boilerplate assumes you want to insert the autocomplete into a DOM element with autocomplete as an id. You should change the container to match your markup. Setting openOnFocus to true ensures that the dropdown appears as soon as a user focuses the input.
Creating a two-column layout
Using the render function of autocomplete-js, you can customize the panel rendering to create two columns or more.
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import { autocomplete } from '@algolia/autocomplete-js';
import '@algolia/autocomplete-theme-classic';
autocomplete({
container: '#autocomplete',
openOnFocus: true,
plugins: [],
render({ render, html }, root) {
render(
html`<div className="aa-PanelLayout aa-Panel--scrollable">
<div className="aa-PanelSections">
<div className="aa-PanelSection--left"></div>
<div className="aa-PanelSection--right"></div>
</div>
</div>`,
root
);
},
});
Adding recent searches and query suggestions
To continue, add the Recent Searches plugin and the Query Suggestions plugin to the left column.
First, you need to create an Algolia search client and create the recent searches plugin with a limit of two recent searches. After, you can create the query suggestions plugin limiting the number of suggestions to seven.
This gives you a total of nine items in the right column (combining recent searches and query suggestions).
Then, you can retrieve the recent searches and query suggestions plugins sources in the render function using elements and adding it to the left column.
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// ...
import { createLocalStorageRecentSearchesPlugin } from '@algolia/autocomplete-plugin-recent-searches';
import { createQuerySuggestionsPlugin } from '@algolia/autocomplete-plugin-query-suggestions';
import algoliasearch from 'algoliasearch/lite';
import '@algolia/autocomplete-theme-classic';
const appId = 'latency';
const apiKey = '6be0576ff61c053d5f9a3225e2a90f76';
const searchClient = algoliasearch(appId, apiKey);
const recentSearchesPlugin = createLocalStorageRecentSearchesPlugin({
key: 'multi-column-layout-example',
limit: 2,
});
const querySuggestionsPlugin = createQuerySuggestionsPlugin({
searchClient,
indexName: 'autocomplete_demo_products_query_suggestions',
getSearchParams() {
return {
...recentSearchesPlugin.data.getAlgoliaSearchParams(),
hitsPerPage: 7,
};
},
});
autocomplete({
container: '#autocomplete',
openOnFocus: true,
plugins: [recentSearchesPlugin, querySuggestionsPlugin],
render({ elements, render, html }, root) {
const { recentSearchesPlugin, querySuggestionsPlugin } = elements;
render(
html`<div className="aa-PanelLayout aa-Panel--scrollable">
<div className="aa-PanelSections">
<div className="aa-PanelSection--left">
${recentSearchesPlugin} ${querySuggestionsPlugin}
</div>
<div className="aa-PanelSection--right"></div>
</div>
</div>`,
root
);
},
});
Creating a “products” source
Now you can add a source to retrieve and display the products in the right column.
To do that, you can create a dynamic source using the getSources function and retrieve the products from your Algolia index using the getAlgoliaResults function.
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// ...
autocomplete({
container: '#autocomplete',
openOnFocus: true,
plugins: [recentSearchesPlugin, querySuggestionsPlugin],
getSources({ query }) {
return [
// ...
{
sourceId: 'products',
getItems() {
return getAlgoliaResults({
searchClient,
queries: [
{
indexName: 'autocomplete_demo_products',
query,
params: {
hitsPerPage: 4,
},
},
],
});
},
// ...
},
];
},
render({ elements, render, html }, root) {
const { recentSearchesPlugin, querySuggestionsPlugin } = elements;
render(
html`<div className="aa-PanelLayout aa-Panel--scrollable">
<div className="aa-PanelSections">
<div className="aa-PanelSection--left">
${recentSearchesPlugin} ${querySuggestionsPlugin}
</div>
<div className="aa-PanelSection--right"></div>
</div>
</div>`,
root
);
},
});
Displaying products
Now that you set up your source, you can display products using the Templates API.
Creating a product item component
Start by creating a file called ProductItem.js in your src directory and copy/paste the snippet below, it’s a component used to render each item of your source.
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function cx(...classNames) {
return classNames.filter(Boolean).join(' ');
}
function formatPrice(value, currency) {
return value.toLocaleString('en-US', { style: 'currency', currency });
}
export function ProductItem({ html, hit, components }) {
return html`
<a
href="https://example.org/"
target="_blank"
rel="noreferrer noopener"
class="${cx('aa-ItemLink', hit.objectID)}"
>
<div class="aa-ItemContent">
<div class="aa-ItemPicture">
<img
src="${hit.image_urls[0]}"
alt="${hit.name}"
onLoad=${() => {
const imgEl = document.querySelector(
`.${hit.objectID} .aa-ItemPicture`
);
imgEl.classList.add('aa-ItemPicture--loaded');
}}
/>
</div>
<div class="aa-ItemContentBody">
<div>
${hit.brand &&
html`
<div class="aa-ItemContentBrand">
${components.Highlight({ hit, attribute: 'brand' })}
</div>
`}
<div class="aa-ItemContentTitleWrapper">
<div class="aa-ItemContentTitle">
${components.Highlight({ hit, attribute: 'name' })}
</div>
</div>
</div>
<div>
<div class="aa-ItemContentPrice">
<div class="aa-ItemContentPriceCurrent">
${formatPrice(hit.price.value, hit.price.currency)}
</div>
${hit.price.on_sales &&
html`
<div class="aa-ItemContentPriceDiscounted">
${formatPrice(hit.price.discounted_value, hit.price.currency)}
</div>
`}
</div>
<div class="aa-ItemContentRating">
<ul>
${Array(5)
.fill(null)
.map(
(_, index) =>
html`<li key="${index}">
<div
class="${cx(
'aa-ItemIcon aa-ItemIcon--noBorder aa-StarIcon',
index >= hit.reviews.rating && 'aa-StarIcon--muted'
)}"
>
<svg viewBox="0 0 24 24" fill="currentColor">
<path
d="M11.049 2.927c.3-.921 1.603-.921 1.902 0l1.519 4.674a1 1 0 00.95.69h4.915c.969 0 1.371 1.24.588 1.81l-3.976 2.888a1 1 0 00-.363 1.118l1.518 4.674c.3.922-.755 1.688-1.538 1.118l-3.976-2.888a1 1 0 00-1.176 0l-3.976 2.888c-.783.57-1.838-.197-1.538-1.118l1.518-4.674a1 1 0 00-.363-1.118l-3.976-2.888c-.784-.57-.38-1.81.588-1.81h4.914a1 1 0 00.951-.69l1.519-4.674z"
/>
</svg>
</div>
</li>`
)}
</ul>
<span class="aa-ItemContentRatingReviews">
(${hit.reviews.count})
</span>
</div>
</div>
</div>
</div>
</a>
`;
}
Rendering each source item
To render each source item, you can use the templates option in your source with the item function.
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// ...
autocomplete({
// ...
getSources() {
return [
// ...
{
sourceId: 'products',
getItems({ /* ... */ }) {
// ...
},
templates: {
item({ html, item, components }) {
return ProductItem({ html, hit: item, components });
},
},
// ...
},
];
},
render({ elements, render, html }, root) {
const { recentSearchesPlugin, querySuggestionsPlugin, products } = elements;
render(
html`<div className="aa-PanelLayout aa-Panel--scrollable">
<div className="aa-PanelSections">
<div className="aa-PanelSection aa-PanelSection--left">
${recentSearchesPlugin} ${querySuggestionsPlugin}
</div>
<div className="aa-PanelSection aa-PanelSection--right">
${products}
</div>
</div>
</div>`,
root
);
},
});
Adding styles
You can copy/paste the following CSS snippet in your src directory and call it style.css.
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* {
box-sizing: border-box;
}
body {
background-color: rgb(244, 244, 249);
color: rgb(65, 65, 65);
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
sans-serif;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
padding: 1rem;
}
.container {
margin: 0 auto;
max-width: 1024px;
width: 100%;
}
/* Panel section */
.aa-PanelSections {
column-gap: var(--aa-spacing);
display: flex;
}
.aa-PanelSection {
display: flex;
flex-direction: column;
}
.aa-PanelSection--left {
width: 30%;
}
.aa-PanelSection--right {
width: 70%;
}
/* Item */
.aa-ItemPicture {
width: 100%;
height: 100%;
border-radius: 3px;
overflow: hidden;
background: rgba(var(--aa-muted-color-rgb), 0.2);
}
.aa-ItemPicture img {
object-fit: cover;
width: 100%;
height: auto;
opacity: 0;
transition: opacity 0.2s ease-out;
}
.aa-ItemPicture--loaded img {
opacity: 1;
}
/* Products */
/* --- Common */
.aa-Source[data-autocomplete-source-id='products'] .aa-List {
display: grid;
grid-template-columns: repeat(4, 1fr);
}
.aa-Source[data-autocomplete-source-id='products'] .aa-Item {
padding: var(--aa-spacing-half);
}
.aa-Source[data-autocomplete-source-id='products'] .aa-ItemLink {
justify-content: stretch;
height: 100%;
}
/* --- Content */
.aa-Source[data-autocomplete-source-id='products'] .aa-ItemContent {
display: flex;
flex-direction: column;
height: 100%;
}
.aa-Source[data-autocomplete-source-id='products'] .aa-ItemContent mark {
color: rgb(var(--aa-primary-color-rgb));
}
.aa-Source[data-autocomplete-source-id='products'] .aa-ItemContentBody {
width: 100%;
display: flex;
flex-direction: column;
justify-content: space-between;
gap: var(--aa-spacing-half);
}
/* --- Brand */
.aa-Source[data-autocomplete-source-id='products'] .aa-ItemContentBrand {
font-size: 0.7em;
text-transform: uppercase;
color: rgb(var(--aa-muted-color-rgb));
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
.aa-Source[data-autocomplete-source-id='products'] .aa-ItemContentBrand mark {
font-weight: normal;
}
/* --- Title */
.aa-Source[data-autocomplete-source-id='products'] .aa-ItemContentTitleWrapper {
height: calc(var(--aa-spacing) * 2.5);
}
.aa-Source[data-autocomplete-source-id='products'] .aa-ItemContentTitle {
font-size: 0.9em;
margin: 0;
display: -webkit-box;
-webkit-box-orient: vertical;
-webkit-line-clamp: 2;
white-space: normal;
}
/* --- Price */
.aa-Source[data-autocomplete-source-id='products'] .aa-ItemContentPrice {
display: flex;
column-gap: var(--aa-spacing-half);
}
.aa-Source[data-autocomplete-source-id='products'] .aa-ItemContentPriceCurrent {
font-weight: bold;
}
.aa-Source[data-autocomplete-source-id='products'] .aa-ItemContentPriceDiscounted {
font-size: 0.9em;
text-decoration: line-through;
color: rgb(var(--aa-muted-color-rgb));
}
/* --- Rating */
.aa-Source[data-autocomplete-source-id='products'] .aa-ItemContentRating ul {
display: flex;
list-style: none;
padding: 0;
}
.aa-Source[data-autocomplete-source-id='products'] .aa-ItemContentRating {
display: flex;
align-items: center;
column-gap: calc(var(--aa-spacing-half) / 2);
margin-top: var(--aa-spacing-half);
}
.aa-Source[data-autocomplete-source-id='products'] .aa-StarIcon {
width: 1.3em;
height: 1.3em;
color: #fdbc72;
}
.aa-Source[data-autocomplete-source-id='products'] .aa-StarIcon--muted {
color: #d6d6e6;
}
.aa-Source[data-autocomplete-source-id='products']
.aa-ItemContentRatingReviews {
font-size: 0.7em;
color: #908eae;
}
/* Media queries */
@media screen and (max-width: 680px) {
/* Panel section */
.aa-PanelSections {
flex-direction: column;
row-gap: var(--aa-spacing);
}
.aa-PanelSection--left,
.aa-PanelSection--right {
width: 100%;
}
/* Products */
.aa-Source[data-autocomplete-source-id='products'] .aa-List {
display: flex;
flex-wrap: wrap;
gap: var(--aa-spacing-half);
}
.aa-Source[data-autocomplete-source-id='products'] .aa-Item {
width: calc(50% - var(--aa-spacing-half) / 2);
}
}
Make sure to include it in your project’s app.js file.
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// ...
import './style.css';
autocomplete({
// ...
});
Next steps
This guide focuses on building a multi-column layout, but you can improve this demo by trying to:
- Add more sources
- Use the Reshape API to combine your sources
- Add empty/no result states
You can take a look at the two-column layout example that implements the previous features.
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