The modal component provides a solid foundation for creating dialogs, popovers, lightboxes, or whatever else.
The component renders its
children node in front of a backdrop component.
Modal offers important features:
- 💄 Manages modal stacking when one-at-a-time just isn't enough.
- 🔐 Creates a backdrop, for disabling interaction below the modal.
- 🔐 It disables scrolling of the page content while open.
- ♿️ It properly manages focus; moving to the modal content, and keeping it there until the modal is closed.
- ♿️ Adds the appropriate ARIA roles automatically.
- 📦 5 kB gzipped.
Terminology note. The term "modal" is sometimes used to mean "dialog", but this is a misnomer. A modal window describes parts of a UI. An element is considered modal if it blocks interaction with the rest of the application.
If you are creating a modal dialog, you probably want to use the Dialog component rather than directly using Modal. Modal is a lower-level construct that is leveraged by the following components:
Notice that you can disable the outline (often blue or gold) with the
outline: 0 CSS property.
The open/close state of the modal can be animated with a transition component. This component should respect the following conditions:
- Be a direct child descendent of the modal.
- Have an
inprop. This corresponds to the open / close state.
- Call the
onEntercallback prop when the enter transition starts.
- Call the
onExitedcallback prop when the exit transition is completed. These two callbacks allow the modal to unmount the child content when closed and fully transitioned.
Modal has built-in support for react-transition-group.
Alternatively, you can use react-spring.
The modal moves the focus back to the body of the component if the focus tries to escape it.
This is done for accessibility purposes, however, it might create issues. In the event the users need to interact with another part of the page, e.g. with a chatbot window, you can disable the behavior:
<Modal disableEnforceFocus />
Be sure to add
aria-labelledby="id...", referencing the modal title, to the
Modal. Additionally, you may give a description of your modal with the
aria-describedby="id..."prop on the
<Modal aria-labelledby="modal-title" aria-describedby="modal-description" > <h2 id="modal-title"> My Title </h2> <p id="modal-description"> My Description </p> </Modal>
The WAI-ARIA authoring practices can help you set the initial focus on the most relevant element, based on your modal content.
A modal window overlys on either the primary window or another modal window. Windows under a modal are inert. That is, users cannot interact with content outside an active modal window.