41 lines
1.1 KiB
TypeScript
41 lines
1.1 KiB
TypeScript
 
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import { BaseCommand } from '../BaseCommand';
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import { ITreeState } from '../ITreeState';
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/**
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* 更新节点数据命令
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*/
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export class UpdateNodeDataCommand extends BaseCommand {
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private oldData: Record<string, unknown>;
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constructor(
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private readonly state: ITreeState,
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private readonly nodeId: string,
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private readonly newData: Record<string, unknown>
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) {
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super();
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const tree = this.state.getTree();
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const node = tree.getNode(nodeId);
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this.oldData = node.data;
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}
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execute(): void {
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const tree = this.state.getTree();
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const newTree = tree.updateNode(this.nodeId, (node) =>
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node.updateData(this.newData)
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);
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this.state.setTree(newTree);
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}
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undo(): void {
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const tree = this.state.getTree();
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const newTree = tree.updateNode(this.nodeId, (node) =>
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node.updateData(this.oldData)
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);
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this.state.setTree(newTree);
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}
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getDescription(): string {
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return `更新节点数据: ${this.nodeId}`;
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}
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}
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