useOverlayContentContext

@coinbase/cds-common@8.34.1

A React context and hook for detecting if components are rendered inside overlay containers like modals, drawers, tours, and trays.

Import

import { OverlayContentContext, useOverlayContentContext } from '@coinbase/cds-common/overlays/OverlayContentContext'

SourceView source codeStorybookView Storybook

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Related components

• Modal,
• Tray,
• Tour

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View as Markdown

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The useOverlayContentContext hook provides information about whether a component is rendered inside various types of overlay containers. This is useful for conditional rendering and styling based on the overlay context.

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Basic usage

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Live Code

function ExampleComponent() {
  const { isOverlay, isModal, isDrawer, isTour } = useOverlayContentContext();

  return (
    <VStack gap={2}>
      <Text font="headline">Overlay Context Information</Text>
      <Text>Is inside any overlay: {isOverlay ? 'Yes' : 'No'}</Text>
      <Text>Is inside modal: {isModal ? 'Yes' : 'No'}</Text>
      <Text>Is inside drawer/tray: {isDrawer ? 'Yes' : 'No'}</Text>
      <Text>Is inside tour: {isTour ? 'Yes' : 'No'}</Text>
    </VStack>
  );
}

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Real Modal Example

Click the button below to open a modal and see how the hook behaves inside vs outside:

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Live Code

function ModalExample() {
  const [isModalOpen, setIsModalOpen] = useState(false);

  const ExampleComponent = () => {
    const { isOverlay, isModal, isDrawer, isTour } = useOverlayContentContext();

    return (
      <VStack gap={2}>
        <Text font="headline">Overlay Context Information</Text>
        <Text>Is inside any overlay: {isOverlay ? 'Yes' : 'No'}</Text>
        <Text>Is inside modal: {isModal ? 'Yes' : 'No'}</Text>
        <Text>Is inside drawer/tray: {isDrawer ? 'Yes' : 'No'}</Text>
        <Text>Is inside tour: {isTour ? 'Yes' : 'No'}</Text>
      </VStack>
    );
  };

  return (
    <VStack gap={3}>
      <VStack gap={2} padding={3} background="bgSecondary" borderRadius={400}>
        <Text font="headline">Outside Modal</Text>
        <ExampleComponent />
      </VStack>

      <Button onClick={() => setIsModalOpen(true)}>Open Modal</Button>

      <Modal visible={isModalOpen} onRequestClose={() => setIsModalOpen(false)}>
        <ModalHeader closeAccessibilityLabel="Close" title="Modal with Context Hook" />
        <ModalBody>
          <VStack gap={3}>
            <Text>
              This content is rendered inside a modal. Notice how the context values change:
            </Text>
            <VStack gap={2} padding={3} background="bgAlternate" borderRadius={400}>
              <ExampleComponent />
            </VStack>
            <Text color="fgMuted" font="caption">
              The hook automatically detects it's inside a modal context!
            </Text>
          </VStack>
        </ModalBody>
      </Modal>
    </VStack>
  );
}

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Using the Context Provider

You can also use the OverlayContentContext directly to provide context values:

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Live Code

function ContextProviderExample() {
  const ExampleComponent = () => {
    const { isOverlay, isModal, isDrawer, isTour } = useOverlayContentContext();

    return (
      <VStack gap={2}>
        <Text font="headline">Overlay Context Information</Text>
        <Text>Is inside any overlay: {isOverlay ? 'Yes' : 'No'}</Text>
        <Text>Is inside modal: {isModal ? 'Yes' : 'No'}</Text>
        <Text>Is inside drawer/tray: {isDrawer ? 'Yes' : 'No'}</Text>
        <Text>Is inside tour: {isTour ? 'Yes' : 'No'}</Text>
      </VStack>
    );
  };

  const contextValue = {
    isModal: true,
    isDrawer: false,
    isTour: false,
  };

  return (
    <OverlayContentContext.Provider value={contextValue}>
      <VStack gap={2} padding={3} background="bgSecondary" borderRadius={400}>
        <Text font="headline">Inside Context Provider</Text>
        <ExampleComponent />
      </VStack>
    </OverlayContentContext.Provider>
  );
}

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Conditional Rendering

Use the hook to conditionally render content based on overlay context:

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Live Code

function ConditionalRenderingExample() {
  const [isModalOpen, setIsModalOpen] = useState(false);

  const ConditionalContent = () => {
    const { isOverlay, isModal } = useOverlayContentContext();

    return (
      <VStack gap={2}>
        <Text font="headline">Conditional Content</Text>
        {isOverlay ? (
          <VStack gap={1}>
            <Text color="fgPositive">✓ This content shows when inside an overlay</Text>
            {isModal && <Text color="fgPrimary">🎯 Specifically inside a modal!</Text>}
          </VStack>
        ) : (
          <Text color="fgMuted">This content shows when not in an overlay</Text>
        )}
      </VStack>
    );
  };

  return (
    <VStack gap={3}>
      <VStack gap={2} padding={3} background="bgSecondary" borderRadius={400}>
        <Text font="headline">Outside Modal</Text>
        <ConditionalContent />
      </VStack>

      <Button onClick={() => setIsModalOpen(true)}>Open Modal</Button>

      <Modal visible={isModalOpen} onRequestClose={() => setIsModalOpen(false)}>
        <ModalHeader closeAccessibilityLabel="Close" title="Conditional Content Demo" />
        <ModalBody>
          <ConditionalContent />
        </ModalBody>
      </Modal>
    </VStack>
  );
}

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Styling Based on Context

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Live Code

function StylingExample() {
  const [isModalOpen, setIsModalOpen] = useState(false);

  const StyledContent = () => {
    const { isModal, isDrawer } = useOverlayContentContext();

    const getBackgroundColor = () => {
      if (isModal) return 'bgPrimaryWash';
      if (isDrawer) return 'bgSecondaryWash';
      return 'bgAlternate';
    };

    const getStatusText = () => {
      if (isModal) return 'Modal styling applied! 🎉';
      if (isDrawer) return 'Drawer styling applied!';
      return 'Default styling';
    };

    return (
      <VStack padding={3} background={getBackgroundColor()} borderRadius={400} gap={2}>
        <Text font="headline">Dynamic Styling</Text>
        <Text>{getStatusText()}</Text>
        <Text color="fgMuted" font="caption">
          Background color: {getBackgroundColor()}
        </Text>
      </VStack>
    );
  };

  return (
    <VStack gap={3}>
      <StyledContent />

      <Button onClick={() => setIsModalOpen(true)}>Open Modal</Button>

      <Modal visible={isModalOpen} onRequestClose={() => setIsModalOpen(false)}>
        <ModalHeader closeAccessibilityLabel="Close" title="Dynamic Styling Demo" />
        <ModalBody>
          <StyledContent />
        </ModalBody>
      </Modal>
    </VStack>
  );
}