66 lines
2.3 KiB
TypeScript
66 lines
2.3 KiB
TypeScript
import { $Container } from "./node/$Container";
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import { $Node } from "./node/$Node";
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import { $Text } from "./node/$Text";
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export class $NodeManager {
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$container: $Container;
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$elementList = new Set<$Node>
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constructor(container: $Container) {
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this.$container = container;
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}
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add(element: $Node | string) {
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if (typeof element === 'string') {
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const text = new $Text(element);
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this.$elementList.add(text);
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(text as Mutable<$Node>).parent = this.$container;
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} else {
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this.$elementList.add(element);
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(element as Mutable<$Node>).parent = this.$container;
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}
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}
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remove(element: $Node) {
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if (!this.$elementList.has(element)) return this;
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this.$elementList.delete(element);
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(element as Mutable<$Node>).parent = undefined;
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return this;
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}
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removeAll(render = true) {
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this.$elementList.forEach(ele => this.remove(ele));
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if (render) this.render();
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}
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replace(target: $Node, replace: $Node) {
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const array = this.array
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array.splice(array.indexOf(target), 1, replace);
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target.remove();
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this.$elementList.clear();
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array.forEach(node => this.$elementList.add(node));
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return this;
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}
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render() {
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const [domList, nodeList] = [this.array.map(node => node.dom), Array.from(this.dom.childNodes)];
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const appendedNodeList: Node[] = []; // appended node list
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// Rearrange
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while (nodeList.length || domList.length) { // while nodeList or domList has item
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const [node, dom] = [nodeList.at(0), domList.at(0)];
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if (!dom) { if (node && !appendedNodeList.includes(node)) node.remove(); nodeList.shift()}
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else if (!node) { if (!dom.$.__hidden) this.dom.append(dom); domList.shift();}
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else if (dom !== node) {
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if (!dom.$.__hidden) { this.dom.insertBefore(dom, node); appendedNodeList.push(dom) }
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domList.shift();
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}
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else {
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if (dom.$.__hidden) this.dom.removeChild(dom);
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domList.shift(); nodeList.shift();
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}
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}
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}
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get array() {return [...this.$elementList.values()]};
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get dom() {return this.$container.dom}
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} |