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node-children.ts
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245 lines (219 loc) · 6.08 KB
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import { INode as InnerNode, INodeChildren } from '@alilc/lowcode-designer';
import { IPublicTypeNodeData, IPublicEnumTransformStage, IPublicModelNodeChildren, IPublicModelNode } from '@alilc/lowcode-types';
import { Node as ShellNode } from './node';
import { nodeSymbol, nodeChildrenSymbol } from '../symbols';
export class NodeChildren implements IPublicModelNodeChildren {
private readonly [nodeChildrenSymbol]: INodeChildren;
constructor(nodeChildren: INodeChildren) {
this[nodeChildrenSymbol] = nodeChildren;
}
static create(nodeChildren: INodeChildren | null): IPublicModelNodeChildren | null {
if (!nodeChildren) {
return null;
}
return new NodeChildren(nodeChildren);
}
/**
* 返回当前 children 实例所属的节点实例
*/
get owner(): IPublicModelNode | null {
return ShellNode.create(this[nodeChildrenSymbol].owner);
}
/**
* children 内的节点实例数
*/
get size(): number {
return this[nodeChildrenSymbol].size;
}
/**
* @deprecated
* 是否为空
* @returns
*/
get isEmpty(): boolean {
return this[nodeChildrenSymbol].isEmptyNode;
}
/**
* 是否为空
* @returns
*/
get isEmptyNode(): boolean {
return this[nodeChildrenSymbol].isEmptyNode;
}
/**
* @deprecated
* judge if it is not empty
*/
get notEmpty(): boolean {
return this[nodeChildrenSymbol].notEmptyNode;
}
/**
* judge if it is not empty
*/
get notEmptyNode(): boolean {
return this[nodeChildrenSymbol].notEmptyNode;
}
/**
* 删除指定节点
* delete the node
* @param node
*/
delete(node: IPublicModelNode): boolean {
return this[nodeChildrenSymbol].delete((node as any)?.[nodeSymbol]);
}
/**
* 插入一个节点
* @param node 待插入节点
* @param at 插入下标
* @returns
*/
insert(node: IPublicModelNode, at?: number | null): void {
return this[nodeChildrenSymbol].insert((node as any)?.[nodeSymbol], at);
}
/**
* 返回指定节点的下标
* @param node
* @returns
*/
indexOf(node: IPublicModelNode): number {
return this[nodeChildrenSymbol].indexOf((node as any)?.[nodeSymbol]);
}
/**
* 类似数组 splice 操作
* @param start
* @param deleteCount
* @param node
*/
splice(start: number, deleteCount: number, node?: IPublicModelNode): any {
this[nodeChildrenSymbol].splice(start, deleteCount, (node as any)?.[nodeSymbol]);
}
/**
* 返回指定下标的节点
* @param index
* @returns
*/
get(index: number): IPublicModelNode | null {
return ShellNode.create(this[nodeChildrenSymbol].get(index));
}
/**
* 是否包含指定节点
* @param node
* @returns
*/
has(node: IPublicModelNode): boolean {
return this[nodeChildrenSymbol].has((node as any)?.[nodeSymbol]);
}
/**
* 类似数组的 forEach
* @param fn
*/
forEach(fn: (node: IPublicModelNode, index: number) => void): void {
this[nodeChildrenSymbol].forEach((item: InnerNode, index: number) => {
fn(ShellNode.create(item)!, index);
});
}
/**
* 类似数组的 reverse
*/
reverse(): IPublicModelNode[] {
return this[nodeChildrenSymbol].reverse().map(d => {
return ShellNode.create(d)!;
});
}
/**
* 类似数组的 map
* @param fn
*/
map<T = any>(fn: (node: IPublicModelNode, index: number) => T): T[] | null {
return this[nodeChildrenSymbol].map<T>((item: InnerNode, index: number): T => {
return fn(ShellNode.create(item)!, index);
});
}
/**
* 类似数组的 every
* @param fn
*/
every(fn: (node: IPublicModelNode, index: number) => boolean): boolean {
return this[nodeChildrenSymbol].every((item: InnerNode, index: number) => {
return fn(ShellNode.create(item)!, index);
});
}
/**
* 类似数组的 some
* @param fn
*/
some(fn: (node: IPublicModelNode, index: number) => boolean): boolean {
return this[nodeChildrenSymbol].some((item: InnerNode, index: number) => {
return fn(ShellNode.create(item)!, index);
});
}
/**
* 类似数组的 filter
* @param fn
*/
filter(fn: (node: IPublicModelNode, index: number) => boolean): any {
return this[nodeChildrenSymbol]
.filter((item: InnerNode, index: number) => {
return fn(ShellNode.create(item)!, index);
})
.map((item: InnerNode) => ShellNode.create(item)!);
}
/**
* 类似数组的 find
* @param fn
*/
find(fn: (node: IPublicModelNode, index: number) => boolean): IPublicModelNode | null {
return ShellNode.create(
this[nodeChildrenSymbol].find((item: InnerNode, index: number) => {
return fn(ShellNode.create(item)!, index);
}),
);
}
/**
* 类似数组的 reduce
* @param fn
*/
reduce(fn: (acc: any, cur: IPublicModelNode) => any, initialValue: any): void {
return this[nodeChildrenSymbol].reduce((acc: any, cur: InnerNode) => {
return fn(acc, ShellNode.create(cur)!);
}, initialValue);
}
/**
* 导入 schema
* @param data
*/
importSchema(data?: IPublicTypeNodeData | IPublicTypeNodeData[]): void {
this[nodeChildrenSymbol].import(data);
}
/**
* 导出 schema
* @param stage
* @returns
*/
exportSchema(stage: IPublicEnumTransformStage = IPublicEnumTransformStage.Render): any {
return this[nodeChildrenSymbol].export(stage);
}
/**
* 执行新增、删除、排序等操作
* @param remover
* @param adder
* @param sorter
*/
mergeChildren(
remover: (node: IPublicModelNode, idx: number) => boolean,
adder: (children: IPublicModelNode[]) => any,
originalSorter: (firstNode: IPublicModelNode, secondNode: IPublicModelNode) => number,
) {
let sorter = originalSorter;
if (!sorter) {
sorter = () => 0;
}
this[nodeChildrenSymbol].mergeChildren(
(node: InnerNode, idx: number) => remover(ShellNode.create(node)!, idx),
(children: InnerNode[]) => adder(children.map((node) => ShellNode.create(node)!)),
(firstNode: InnerNode, secondNode: InnerNode) => {
return sorter(ShellNode.create(firstNode)!, ShellNode.create(secondNode)!);
},
);
}
}