UI libraries / Autocomplete / API reference

autocomplete-theme-classic

The theme is designed as a neutral and clean starter. You can use it as a base and customize it with CSS variables.

If you want to build your own theme, you can start from the Classic theme and adjust it.

Installation

First, you need to install the theme.

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yarn add @algolia/autocomplete-theme-classic
# or
npm install @algolia/autocomplete-theme-classic

Then import it in your project:

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import '@algolia/autocomplete-theme-classic';

If you don’t use a package manager, you can link the style sheet in your HTML:

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<link
  rel="stylesheet"
  href="https://cdn.jsdelivr.net/npm/@algolia/autocomplete-theme-classic"
/>

CSS variables

The theme uses CSS variables that you can customize in your own CSS.

All colors are defined with two variables: one for the RGB values and one for the alpha layer. This lets you adjust each value independently.

Size and spacing

Parameter Description
--aa-base-unit
type: number

The base value to calculate font sizes and spacing.

--aa-spacing-factor
type: number

The base value to calculate spacing increments.

--aa-spacing
type: length

A fixed spacing value derived from the --aa-base-unit and the --aa-spacing-factor.

--aa-spacing-half
type: length

Half of --aa-spacing.

--aa-panel-max-height
type: length

The maximum height for the panel before showing a vertical scrollbar.

Z-index

Parameter Description
--aa-base-z-index
type: integer

The base value to calculate all z-index.

Font

Parameter Description
--aa-font-size
type: length

A fixed font size derived from the --aa-base-unit.

--aa-font-family
type: string

The base font stack.

--aa-font-weight-medium
type: number

The medium boldness weight for --aa-font-family (usually 500).

--aa-font-weight-semibold
type: number

The semi-boldness weight for --aa-font-family (usually 600).

--aa-font-weight-bold
type: number

The boldness weight for --aa-font-family (usually 700).

Icons

Parameter Description
--aa-icon-size
type: length

A fixed icon size value.

--aa-icon-stroke-width
type: number

A fixed icon stroke width value.

--aa-icon-color-rgb

The RGB values for the icon color.

--aa-icon-color-alpha
type: number

The alpha value for the icon color.

--aa-action-icon-size
type: length

A fixed action icon size value.

Text colors

Parameter Description
--aa-text-color-rgb

The RGB values for the global text color.

--aa-text-color-alpha
type: number

The alpha value for the global text color.

--aa-primary-color-rgb

The RGB values for the accent color.

--aa-primary-color-alpha
type: number

The alpha value for the accent color.

--aa-muted-color-rgb

The RGB values for the muted color.

--aa-muted-color-alpha
type: number

The alpha value for the muted color.

Border colors

Parameter Description
--aa-panel-border-color-rgb

The RGB values for the panel border color.

--aa-panel-border-color-alpha
type: number

The alpha value for the panel border color.

--aa-input-border-color-rgb

The RGB values for the input border color.

--aa-input-border-color-alpha
type: number

The alpha value for the input border color.

Background colors

Parameter Description
--aa-background-color-rgb

The RGB values for the background color.

--aa-background-color-alpha
type: number

The alpha value for the background color.

--aa-input-background-color-rgb

The RGB values for the input-background color.

--aa-input-background-color-alpha
type: number

The alpha value for the input-background color.

--aa-selected-color-rgb

The RGB values for selected, active, or focused elements.

--aa-selected-color-alpha
type: number

The alpha value for selected, active, or focused elements.

--aa-description-highlight-background-color-rgb

The RGB values for the description highlight background color.

--aa-description-highlight-background-color-alpha
type: number

The alpha value for the description highlight background color.

Detached mode

Parameter Description
--aa-detached-media-query
type: media query

The media query to enable detached mode on smaller devices.

--aa-detached-modal-media-query
type: media query

The media query to enable detached mode on bigger devices.

--aa-detached-modal-max-width
type: length

The maximum width of the modal in detached mode.

--aa-detached-modal-max-height
type: length

The maximum height of the modal in detached mode.

--aa-overlay-color-rgb

The RGB values for the overlay color.

--aa-overlay-color-alpha
type: number

The alpha value for the overlay color.

Shadows

Parameter Description
--aa-panel-shadow
type: box-shadow

The shadow for the panel.

Scrollbar

Parameter Description
--aa-scrollbar-width
type: length

The width of the scrollbar.

--aa-scrollbar-track-background-color-rgb

The RGB values for the scrollbar track color.

--aa-scrollbar-track-background-color-alpha
type: number

The alpha value for the scrollbar track color.

--aa-scrollbar-thumb-background-color-rgb

The RGB values for the scrollbar thumb color.

--aa-scrollbar-thumb-background-color-alpha
type: number

The alpha value for the scrollbar thumb color.

To customize a value, you can create a custom style sheet and override the variable.

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:root {
  --aa-icon-size: 24px;
}

Make sure to load these styles after the theme.

Templates

For the theme to work out of the box, you need to use a conventional CSS class set. All class names from the theme come with an aa- namespace to avoid interfering with your own styles.

Item

Here’s the markup for an item template.

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autocomplete({
  // ...
  templates: {
    item({ item, components, html }) {
      return html`<div class="aa-ItemWrapper">
        <div class="aa-ItemContent">
          <div class="aa-ItemIcon">
            <img
              src="${item.image}"
              alt="${item.name}"
              width="40"
              height="40"
            />
          </div>
          <div class="aa-ItemContentBody">
            <div class="aa-ItemContentTitle">
              ${components.Highlight({ hit: item, attribute: 'name' })}
            </div>
            <div class="aa-ItemContentDescription">
              ${components.Snippet({ hit: item, attribute: 'description' })}
            </div>
          </div>
        </div>
        <div class="aa-ItemActions">
          <button
            class="aa-ItemActionButton aa-DesktopOnly aa-ActiveOnly"
            type="button"
            title="Select"
          >
            <svg viewBox="0 0 24 24" width="20" height="20" fill="currentColor">
              <path
                d="M18.984 6.984h2.016v6h-15.188l3.609 3.609-1.406 1.406-6-6 6-6 1.406 1.406-3.609 3.609h13.172v-4.031z"
              />
            </svg>
          </button>
        </div>
      </div>`;
    },
  },
});

To wrap an item within a link, use the .aa-ItemLink class in place of the element with .aa-ItemWrapper. Make sure not to use both together.

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autocomplete({
  // ...
  templates: {
    item({ item, html }) {
      return html`<a class="aa-ItemLink" href="${item.url}"> /* ... */ </a>`;
    },
  },
});

Here’s the markup for a header template.

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autocomplete({
  // ...
  templates: {
    header({ html }) {
      return html`<span class="aa-SourceHeaderTitle">Products</span>
        <div class="aa-SourceHeaderLine" />`;
    },
    // ...
  },
});

No results

Here’s the markup for a noResults template.

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autocomplete({
  // ...
  templates: {
    noResults() {
      return 'No products for this query.';
    },
    // ...
  },
});

Additional CSS classes

The theme provides a set of optional classes for you to use in different contexts.

Modifiers

  • .aa-ItemIcon--noBorder removes the border of the icon
  • .aa-ItemIcon--alignTop aligns the icon to the top (recommended when the template is longer than three lines)
  • .aa-ItemIcon--picture makes the icon larger (recommended when using an image and the template is longer than three lines)
  • .aa-Panel--scrollable declares the scrollable containers of the panel

Utilities

  • .aa-ActiveOnly displays an element only when the item is active
  • .aa-DesktopOnly displays an element only on desktop devices
  • .aa-TouchOnly displays an element only on tap devices

Dark mode

The theme supports dark mode. You can enable it on the body tag in two different ways:

  • <body data-theme="dark" />
  • <body class="dark" />
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