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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | 9x 9x 8x 8x 7x 7x 1x 1x 7x 1x 1x | import { VirtualNode } from "../interfaces";
import createNode from "./createNode";
export default function patchNode(newVNode: VirtualNode, oldVNode: VirtualNode, container: Document | HTMLElement): void {
const oldElement = oldVNode.$node;
if (newVNode.tag === oldVNode.tag) { // Check if the attributes and children changed
patchAttributes(oldElement as HTMLElement, newVNode.attributes || {}, oldVNode.attributes || {});
patchChildren(oldElement, newVNode.children, oldVNode.children);
}
else { // Different tags, replace the element
const newElement = createNode(newVNode);
oldElement.parentNode.replaceChild(newElement, oldElement);
}
}
function patchAttributes(element: HTMLElement, newAttributes: Record<string, any> = {}, oldAttributes: Record<string, any> = {}) {
for (const [key, value] of Object.entries(newAttributes)) {
setAttribute(element, key, value);
}
}
function patchChildren(oldElement: Node, oldChildren: any[] = [], newChildren: any[] = []) {
//throw new Error("Function not implemented.");
}
function setAttribute(element: HTMLElement, key: string, value: any) {
element.setAttribute(key, value);
}
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