# Select icon Icons describe the type of input a select requires. They can also be interaction targets. ## Basic usage ### HTML structure ```html event ``` #### Icon set We recommend using [Material Icons](https://material.io/tools/icons/) from Google Fonts: ```html ``` However, you can also use SVG, [Font Awesome](https://fontawesome.com/), or any other icon library you wish. ### JavaScript instantiation ```js import {MDCSelectIcon} from '@material/select/icon'; const icon = new MDCSelectIcon(document.querySelector('.mdc-select__icon')); ``` ## Variants Leading icons can be applied to default or `mdc-select--outlined` Selects. To add a leading icon, add the class `mdc-select--with-leading-icon` to the root element, add an `i` element with your preferred icon as a child of the `mdc-select__anchor` element, and give it a class of `mdc-select__icon`. > **NOTE:** if you would like to display un-clickable icons, simply omit `tabindex="0"` and `role="button"`, and the CSS will ensure the cursor is set to default, and that interacting with an icon doesn't do anything unexpected. ### Leading icon > **NOTE:** when using leading icons in select anchor, also include an empty `` in each list item. In filled select: ```html
Pick a Food Group event ...
``` In outlined select: ```html
... event ...
``` ## API ### CSS classes CSS Class | Description --- | --- `mdc-select__icon` | Mandatory. ### Sass mixins Mixin | Description --- | --- `size($size)` | Customizes the size (both width and height) of the icon. `icon-color($color)` | Customizes the color for the leading icon. `disabled-icon-color($color)` | Customizes the color for the leading icon when disabled. ## `MDCSelectIcon` properties and methods Property | Value Type | Description --- | --- | --- `foundation` | `MDCSelectIconFoundation` | Returns the icon's foundation. This allows the parent `MDCSelect` component to access the public methods on the `MDCSelectIconFoundation` class. ## Usage within frameworks If you are using a JavaScript framework, such as React or Angular, you can create a Select Icon for your framework. Depending on your needs, you can use the _Simple Approach: Wrapping MDC Web Vanilla Components_, or the _Advanced Approach: Using Foundations and Adapters_. Please follow the instructions [here](../../../docs/integrating-into-frameworks.md). ### `MDCSelectIconAdapter` Method Signature | Description --- | --- `getAttr(attr: string) => string` | Gets the value of an attribute on the icon element. `setAttr(attr: string, value: string) => void` | Sets an attribute with a given value on the icon element. `removeAttr(attr: string) => void` | Removes an attribute from the icon element. `setContent(content: string) => void` | Sets the text content of the icon element. `registerInteractionHandler(evtType: string, handler: EventListener) => void` | Registers an event listener for a given event. `deregisterInteractionHandler(evtType: string, handler: EventListener) => void` | Deregisters an event listener for a given event. `notifyIconAction() => void` | Emits a custom event "MDCSelect:icon" denoting a user has clicked the icon, which bubbles to the top-level select element. ### `MDCSelectIconFoundation` Method Signature | Description --- | --- `setDisabled(disabled: boolean) => void` | Updates the icon's disabled state. `setAriaLabel(label: string) => void` | Updates the icon's aria-label. `setContent(content: string) => void` | Updates the icon's text content. `handleInteraction(evt: Event) => void` | Handles a select interaction event.