Tray

@coinbase/cds-web@8.13.6

An elevated container pinned to the bottom of the screen.

Import

import { Tray } from '@coinbase/cds-web/overlays/tray/Tray'

SourceView source codeFigmaView Figma

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Related components

• Modal,
• Tooltip,
• Alert,
• Overlay

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Accessibility tip

Labels

Trays require an accessibility label, which we set to title by default. However, if you don't want to provide a title or there's other text that gives the user better context to the tray, then you can pass an element id to accessibilityLabelledBy. Alternatively, you may directly provide a contextual label to accessibilityLabel.

Basic usage with Callback

The recommended way to use a Tray is by passing a callback as children, which receives a handleClose function:

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Live Code

function BasicTray() {
  const [visible, setVisible] = useState(false);
  const handleOpen = () => setVisible(true);
  const handleClose = () => setVisible(false);

  return (
    <VStack gap={2}>
      <Button onClick={handleOpen}>Open Tray</Button>
      {visible && (
        <Tray title="Example Title" onCloseComplete={handleClose}>
          {({ handleClose }) => (
            <VStack gap={2}>
              <Text>This is the content of the tray.</Text>
              <Button onClick={handleClose}>Close</Button>
            </VStack>
          )}
        </Tray>
      )}
    </VStack>
  );
}

Using Ref to Control the Tray

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Accessibility tip

Trigger Focus

A ref to the trigger that opens the tray, along with an onClosedComplete method to reset focus on the trigger when the tray closes, needs to be wired up for accessibility (see code example below).

You can also control the Tray using a ref, which provides a close() method:

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Live Code

function TrayWithRef() {
  const [visible, setVisible] = useState(false);
  const trayRef = useRef<DrawerRefBaseProps>(null);
  const triggerRef = useRef<HTMLButtonElement>(null);

  const handleOpen = () => setVisible(true);
  const handleClose = () => {
    setVisible(false);
    triggerRef.current?.focus();
  };

  return (
    <VStack gap={2}>
      <Button ref={triggerRef} onClick={handleOpen}>
        Open Tray
      </Button>
      {visible && (
        <Tray ref={trayRef} title="Ref Controlled Tray" onCloseComplete={handleClose}>
          <VStack gap={2}>
            <Text>Control this tray using the ref.</Text>
            <Button onClick={() => trayRef.current?.close()}>Close</Button>
          </VStack>
        </Tray>
      )}
    </VStack>
  );
}

Scrollable Content

Trays with long content will automatically be scrollable.

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Live Code

function ScrollableTray() {
  const [visible, setVisible] = useState(false);
  const handleOpen = () => setVisible(true);
  const handleClose = () => setVisible(false);

  return (
    <VStack gap={2}>
      <Button onClick={handleOpen}>Open Scrollable Tray</Button>
      {visible && (
        <Tray title="Scrollable Content" onCloseComplete={handleClose}>
          {({ handleClose }) => (
            <VStack gap={2}>
              <VStack gap={2}>
                <Text>
                  Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor
                  incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud
                  exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
                </Text>
                <Text>
                  Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu
                  fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in
                  culpa qui officia deserunt mollit anim id est laborum.
                </Text>
                <Text>
                  Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor
                  incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud
                  exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
                </Text>
                <Text>
                  Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu
                  fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in
                  culpa qui officia deserunt mollit anim id est laborum.
                </Text>
                <Text>
                  Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor
                  incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud
                  exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
                </Text>
                <Text>
                  Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu
                  fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in
                  culpa qui officia deserunt mollit anim id est laborum.
                </Text>
                <Text>
                  Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor
                  incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud
                  exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
                </Text>
                <Text>
                  Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu
                  fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in
                  culpa qui officia deserunt mollit anim id est laborum.
                </Text>
                <Text>
                  Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor
                  incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud
                  exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
                </Text>
                <Text>
                  Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu
                  fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in
                  culpa qui officia deserunt mollit anim id est laborum.
                </Text>
                <Text>
                  Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor
                  incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud
                  exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
                </Text>
                <Text>
                  Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu
                  fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in
                  culpa qui officia deserunt mollit anim id est laborum.
                </Text>
              </VStack>
              <HStack justifyContent="flex-end">
                <Button onClick={handleClose}>Close</Button>
              </HStack>
            </VStack>
          )}
        </Tray>
      )}
    </VStack>
  );
}

Non-Dismissible Tray

Trays can be configured to prevent the user from dismissing the tray by clicking close, clicking outside, or pressing ESC.

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Live Code

function NonDismissibleTray() {
  const [visible, setVisible] = useState(false);
  const handleOpen = () => setVisible(true);
  const handleClose = () => setVisible(false);

  return (
    <VStack gap={2}>
      <Button onClick={handleOpen}>Open Non-Dismissible Tray</Button>
      {visible && (
        <Tray title="Non-Dismissible Tray" preventDismiss onCloseComplete={handleClose}>
          {({ handleClose }) => (
            <VStack gap={2}>
              <Text>
                This tray cannot be dismissed, user must click an explicit action button to close
                it.
              </Text>
              <Button onClick={handleClose}>Close</Button>
            </VStack>
          )}
        </Tray>
      )}
    </VStack>
  );
}

Multiple Overlay Flow

When transitioning between overlays, ensure proper dismounting using onCloseComplete:

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Live Code

function TrayToModalFlow() {
  const [isTrayVisible, setIsTrayVisible] = useState(false);
  const [isModalVisible, setIsModalVisible] = useState(false);

  const openTray = () => setIsTrayVisible(true);
  const closeTray = () => setIsTrayVisible(false);
  const openModal = () => setIsModalVisible(true);
  const closeModal = () => setIsModalVisible(false);

  const handleTrayClose = useCallback(() => {
    closeTray();
    openModal();
  }, []);

  return (
    <VStack gap={2}>
      <Button onClick={openTray}>Start Flow</Button>
      {isTrayVisible && (
        <Tray title="First Step" onCloseComplete={handleTrayClose}>
          {({ handleClose }) => (
            <VStack gap={2}>
              <Text>Click below to continue to the modal</Text>
              <Button onClick={handleClose}>Continue to Modal</Button>
            </VStack>
          )}
        </Tray>
      )}
      <Modal visible={isModalVisible} onRequestClose={closeModal}>
        <ModalHeader title="Second Step" />
        <ModalBody>
          <VStack gap={2}>
            <Text>This is the second step in the flow.</Text>
            <Button onClick={closeModal}>Finish</Button>
          </VStack>
        </ModalBody>
      </Modal>
    </VStack>
  );
}

Note: The Tray component is an elevated container that is pinned to the bottom of the screen and provides a standardized way to present bottom sheets in your web application. Key points:

• Use onCloseComplete for cleanup when the tray is dismissed
• Children can be either a React node or a render function that receives a handleClose function
• The ref provides open() and close() methods for controlling the tray
• When transitioning between overlays, ensure proper dismounting using lifecycle methods