@wordpress/components
Version:
UI components for WordPress.
69 lines (68 loc) • 1.71 kB
JavaScript
// packages/components/src/input-control/utils.ts
import { useEffect, useLayoutEffect, useRef, useState } from "@wordpress/element";
function getDragCursor(dragDirection) {
let dragCursor = "ns-resize";
switch (dragDirection) {
case "n":
case "s":
dragCursor = "ns-resize";
break;
case "e":
case "w":
dragCursor = "ew-resize";
break;
}
return dragCursor;
}
function useDragCursor(isDragging, dragDirection) {
const dragCursor = getDragCursor(dragDirection);
useEffect(() => {
if (isDragging) {
document.documentElement.style.cursor = dragCursor;
} else {
document.documentElement.style.cursor = null;
}
}, [isDragging, dragCursor]);
return dragCursor;
}
function useDraft(props) {
const previousValueRef = useRef(props.value);
const [draft, setDraft] = useState({});
const value = draft.value !== void 0 ? draft.value : props.value;
useLayoutEffect(() => {
const {
current: previousValue
} = previousValueRef;
previousValueRef.current = props.value;
if (draft.value !== void 0 && !draft.isStale) {
setDraft({
...draft,
isStale: true
});
} else if (draft.isStale && props.value !== previousValue) {
setDraft({});
}
}, [props.value, draft]);
const onChange = (nextValue, extra) => {
setDraft((current) => Object.assign(current, {
value: nextValue,
isStale: false
}));
props.onChange(nextValue, extra);
};
const onBlur = (event) => {
setDraft({});
props.onBlur?.(event);
};
return {
value,
onBlur,
onChange
};
}
export {
getDragCursor,
useDraft,
useDragCursor
};
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