Stefan Hacker
35 lines
1.2 KiB
Markdown
35 lines
1.2 KiB
Markdown
# @fluentui/react-window-provider
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A set of utilities for providing and consuming the `window` and `document` references in a contextual scope.
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## Why is this needed?
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When rendering on the main browser window, many components need access to `window` or `document` for applying styling, listening for events, or measuring things. However it is possible to render to child windows and elements hosted in `iframe` elements.
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In these cases, the target element is hosted in a different context, and thus have a different `window` reference. To aid in providing components with the correct instances of `window` or `document`, React context can be used to provide the tree of React components with the correct instance.
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## Usage
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To consume the window or document object, call `useWindow` or `useDocument` respectively:
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```jsx
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const Foo = () => {
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const win = useWindow();
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const doc = useDocument();
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return </>
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}
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```
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To provide a new window other than the default, wrap your app in the `WindowProvider` to override the defaults contextually:
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```jsx
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import { createRoot } from 'react-dom/client';
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createRoot(childWindowElement).render(
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<WindowProvider window={childWindow}>
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<...>
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</WindowProvider>,
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);
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```
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