<mwc-fab>

IMPORTANT: The Material Web Components are a work in progress and subject to major changes until 1.0 release.

A floating action button (FAB) represents the primary action of a screen.

Material Design Guidelines: Floating Action Button

Demo

Installation

npm install @dev.mohe/mwc-fab

NOTE: The Material Web Components are distributed as ES2017 JavaScript Modules, and use the Custom Elements API. They are compatible with all modern browsers including Chrome, Firefox, Safari, Edge, and IE11, but an additional tooling step is required to resolve bare module specifiers, as well as transpilation and polyfills for IE11. See here for detailed instructions.

Example usage

Standard

<link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons&display=block">

<mwc-fab icon="edit"></mwc-fab>

<script type="module">
  import '@dev.mohe/mwc-fab';
  const fab = document.querySelector('mwc-fab');
  fab.addEventListener('click', () => {
    edit();
  });
</script>

Standard - slotted

<link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons&display=block">

<mwc-fab label="edit">
  <mwc-icon slot="icon">edit</mwc-icon>
</mwc-fab>

<script type="module">
  import '@dev.mohe/mwc-fab';
  import '@dev.mohe/mwc-icon';
</script>

Note: label should still be set for button accessibility purposes.

Mini

<mwc-fab mini icon="add"></mwc-fab>

Extended

<mwc-fab extended icon="shopping_cart" label="Add to cart"></mwc-fab>

Customize colors

mwc-fab {
  --mdc-theme-secondary: white;
  --mdc-theme-on-secondary: black;
}

API

Slots

| Name | Description | -------- | --- | icon | An icon to be slotted into the fab. Note: the label property should still be set for button accessibility.

Properties/Attributes

| Name | Type | Description | --------------- | --------- |------------ | icon | string | The icon to display. | label | string | The label to display when using the extended layout, and the aria-label attribute in all layouts. | mini | boolean | Modifies the FAB to be a smaller size, for use on smaller screens. Defaults to false. | reducedTouchTarget | boolean | Sets the minimum touch target of the default-sized mini fab to recommended 48x48px. | extended | boolean | Enable the extended layout which includes a text label. Defaults to false. | showIconAtEnd | boolean | When in the extended layout, position the icon after the label, instead of before. Defaults to false.

Methods

None

Events

None

CSS Custom Properties

Name | Default | Description -------------------------- | -----------------------------------| ----------- --mdc-fab-box-shadow | mdc elevation 6, 8, 12 | Sets the box shadow of the fab. Elevation 6 when idle, 8 when focused or hovered, and 12 when active.

Elevation values

| Elevation Level | CSS Value | ---- | --- | 6 | 0px 3px 5px -1px rgba(0, 0, 0, 0.2), 0px 6px 10px 0px rgba(0, 0, 0, 0.14), 0px 1px 18px 0px rgba(0, 0, 0, 0.12) | 8 | 0px 5px 5px -3px rgba(0, 0, 0, 0.2), 0px 8px 10px 1px rgba(0, 0, 0, 0.14), 0px 3px 14px 2px rgba(0, 0, 0, 0.12) | 12 | 0px 7px 8px -4px rgba(0, 0, 0, 0.2), 0px 12px 17px 2px rgba(0, 0, 0, 0.14), 0px 5px 22px 4px rgba(0, 0, 0, 0.12)

Global Custom Properties

This component exposes the following global theming custom properties.

| Name | Description | ------------------------------------ | ----------- | --mdc-icon-font | Font to use for the icon. | --mdc-theme-secondary | Background color of the FAB. | --mdc-theme-on-secondary | Foreground color of the label and icon.

Additional references

• MDC Web: Floating Action Button