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Documentation Index

Fetch the complete documentation index at: https://mintlify.com/Twilio-labs/paste/llms.txt

Use this file to discover all available pages before exploring further.

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Installation

yarn add @twilio-paste/side-modal

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Usage

import {
  SideModalContainer,
  SideModalButton,
  SideModal,
  SideModalHeader,
  SideModalHeading,
  SideModalBody,
  SideModalFooter,
  SideModalFooterActions,
} from '@twilio-paste/side-modal';
import { Button } from '@twilio-paste/button';

const MySideModal = () => {
  return (
    <SideModalContainer>
      <SideModalButton variant="primary">
        Open Side Modal
      </SideModalButton>
      <SideModal aria-label="Side modal example">
        <SideModalHeader>
          <SideModalHeading as="h2" variant="heading20">
            Side Modal Heading
          </SideModalHeading>
        </SideModalHeader>
        <SideModalBody>
          <p>Side modal content goes here.</p>
        </SideModalBody>
        <SideModalFooter>
          <SideModalFooterActions>
            <Button variant="secondary">Cancel</Button>
            <Button variant="primary">Save</Button>
          </SideModalFooterActions>
        </SideModalFooter>
      </SideModal>
    </SideModalContainer>
  );
};

​
Props

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SideModalContainer

PropTypeDefaultDescription
childrenReact.ReactNode-Required. Must contain a SideModalButton and SideModal.
stateSideModalStateReturn-Optional state from useSideModalState hook for controlled usage.
visibleboolean-Control the visibility (controlled mode).

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SideModal

PropTypeDefaultDescription
aria-labelstring-Required. Title of the dialog for screen readers.
childrenReact.ReactNode-Required. The content of the side modal.
hideOnEscbooleantrueSet to false to disable closing when the “Escape” key is pressed.
elementstring"SIDE_MODAL"Overrides the default element name for custom styling.

​
SideModalButton

SideModalButton extends the Button component props.
PropTypeDefaultDescription
All Button props--Inherits all props from the Button component.

​
SideModalHeader

PropTypeDefaultDescription
childrenReact.ReactNode-Required. Content for the header, typically SideModalHeading.
i18nDismissLabelstring"Close side modal"Accessible text for the close button.
elementstring"SIDE_MODAL_HEADER"Overrides the default element name for custom styling.

​
SideModalHeading

PropTypeDefaultDescription
childrenReact.ReactNode-Required. The heading text.
as"h1" | "h2" | "h3" | "h4" | "h5" | "h6"-Required. The HTML heading level.
variantHeadingProps["variant"]-Required. The visual style of the heading.
elementstring"SIDE_MODAL_HEADING"Overrides the default element name for custom styling.

​
SideModalBody

PropTypeDefaultDescription
childrenReact.ReactNode-Required. The main content of the side modal.
elementstring"SIDE_MODAL_BODY"Overrides the default element name for custom styling.

​
SideModalFooter

PropTypeDefaultDescription
childrenReact.ReactNode-Required. Content for the footer, typically SideModalFooterActions.
elementstring"SIDE_MODAL_FOOTER"Overrides the default element name for custom styling.

​
SideModalFooterActions

PropTypeDefaultDescription
childrenReact.ReactNode-Required. Action buttons for the side modal.
justify"start" | "end""end"Alignment of the action buttons.
elementstring"SIDE_MODAL_FOOTER_ACTIONS"Overrides the default element name for custom styling.

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Examples

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Basic Side Modal

<SideModalContainer>
  <SideModalButton variant="primary">
    View Details
  </SideModalButton>
  <SideModal aria-label="Details panel">
    <SideModalHeader>
      <SideModalHeading as="h2" variant="heading20">
        Item Details
      </SideModalHeading>
    </SideModalHeader>
    <SideModalBody>
      <Heading as="h3" variant="heading30">
        Description
      </Heading>
      <Paragraph>Detailed information about the item.</Paragraph>
    </SideModalBody>
    <SideModalFooter>
      <SideModalFooterActions>
        <Button variant="secondary">Cancel</Button>
        <Button variant="primary">Save Changes</Button>
      </SideModalFooterActions>
    </SideModalFooter>
  </SideModal>
</SideModalContainer>

​
Controlled Side Modal

import { useSideModalState } from '@twilio-paste/side-modal';

const ControlledSideModal = () => {
  const sideModal = useSideModalState();

  return (
    <>
      <Button onClick={() => sideModal.show()}>
        Open Side Modal
      </Button>
      <SideModalContainer state={sideModal}>
        <SideModal aria-label="Controlled side modal">
          <SideModalHeader>
            <SideModalHeading as="h2" variant="heading20">
              Controlled Side Modal
            </SideModalHeading>
          </SideModalHeader>
          <SideModalBody>
            <Paragraph>This side modal is controlled programmatically.</Paragraph>
            <Button onClick={() => sideModal.hide()}>Close</Button>
          </SideModalBody>
        </SideModal>
      </SideModalContainer>
    </>
  );
};

​
Side Modal with Form

<SideModalContainer>
  <SideModalButton variant="primary">
    Add Item
  </SideModalButton>
  <SideModal aria-label="Add new item">
    <SideModalHeader>
      <SideModalHeading as="h2" variant="heading20">
        Add New Item
      </SideModalHeading>
    </SideModalHeader>
    <SideModalBody>
      <Box as="form" display="flex" flexDirection="column" rowGap="space60">
        <Box>
          <Label htmlFor="item-name" required>
            Item Name
          </Label>
          <Input id="item-name" type="text" required />
        </Box>
        <Box>
          <Label htmlFor="item-description">Description</Label>
          <TextArea id="item-description" />
        </Box>
      </Box>
    </SideModalBody>
    <SideModalFooter>
      <SideModalFooterActions>
        <Button variant="secondary">Cancel</Button>
        <Button variant="primary">Add Item</Button>
      </SideModalFooterActions>
    </SideModalFooter>
  </SideModal>
</SideModalContainer>

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Prevent Escape Key Close

<SideModal aria-label="Important form" hideOnEsc={false}>
  <SideModalHeader>
    <SideModalHeading as="h2" variant="heading20">
      Important Form
    </SideModalHeading>
  </SideModalHeader>
  <SideModalBody>
    <Paragraph>
      This side modal can only be closed by clicking the close button or cancel.
    </Paragraph>
  </SideModalBody>
</SideModal>

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Hooks

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useSideModalState

Returns state for controlling the side modal programmatically. 
const sideModal = useSideModalState();

// State includes:
// - visible: boolean
// - show: () => void
// - hide: () => void
// - toggle: () => void

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Accessibility

  • Side Modal is a non-modal dialog (aria-modal is not set to true)
  • Focus moves to the side modal when it opens
  • Pressing Escape closes the side modal by default
  • The close button is keyboard accessible
  • Users can still interact with the main page content
  • Screen readers announce the side modal when it opens

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When to Use

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Use Side Modal when:

  • You need a secondary workspace without losing context of the main page
  • Editing or viewing details of items in a list or table
  • Creating wizards or multi-step forms
  • Providing additional options or settings
  • Users need to reference main page content while working in the modal

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Use Modal instead when:

  • The task requires full user attention
  • You need to completely block interaction with the main content
  • The content is critical and must be addressed immediately
  • Space is limited and a centered dialog works better

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Use Popover instead when:

  • The content is brief and contextual
  • You only need a small amount of space
  • The interaction is lightweight and quick

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