35 lines
983 B
Plaintext
35 lines
983 B
Plaintext
import { assign, slice } from './util';
|
|
import { createVNode } from './create-element';
|
|
|
|
/**
|
|
* Clones the given VNode, optionally adding attributes/props and replacing its children.
|
|
* @param {import('./internal').VNode} vnode The virtual DOM element to clone
|
|
* @param {object} props Attributes/props to add when cloning
|
|
* @param {Array<import('./internal').ComponentChildren>} rest Any additional arguments will be used as replacement children.
|
|
* @returns {import('./internal').VNode}
|
|
*/
|
|
export function cloneElement(vnode, props, children) {
|
|
let normalizedProps = assign({}, vnode.props),
|
|
key,
|
|
ref,
|
|
i;
|
|
for (i in props) {
|
|
if (i == 'key') key = props[i];
|
|
else if (i == 'ref') ref = props[i];
|
|
else normalizedProps[i] = props[i];
|
|
}
|
|
|
|
if (arguments.length > 2) {
|
|
normalizedProps.children =
|
|
arguments.length > 3 ? slice.call(arguments, 2) : children;
|
|
}
|
|
|
|
return createVNode(
|
|
vnode.type,
|
|
normalizedProps,
|
|
key || vnode.key,
|
|
ref || vnode.ref,
|
|
null
|
|
);
|
|
}
|