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selection.ts
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118 lines (105 loc) · 2.63 KB
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import {
IDocumentModel as InnerDocumentModel,
INode as InnerNode,
ISelection,
} from '@alilc/lowcode-designer';
import { Node as ShellNode } from './node';
import { selectionSymbol } from '../symbols';
import { IPublicModelSelection, IPublicModelNode, IPublicTypeDisposable } from '@alilc/lowcode-types';
export class Selection implements IPublicModelSelection {
private readonly [selectionSymbol]: ISelection;
constructor(document: InnerDocumentModel) {
this[selectionSymbol] = document.selection;
}
/**
* 返回选中的节点 id
*/
get selected(): string[] {
return this[selectionSymbol].selected;
}
/**
* return selected Node instance
*/
get node(): IPublicModelNode | null {
const nodes = this.getNodes();
return nodes && nodes.length > 0 ? nodes[0] : null;
}
/**
* 选中指定节点（覆盖方式）
* @param id
*/
select(id: string): void {
this[selectionSymbol].select(id);
}
/**
* 批量选中指定节点们
* @param ids
*/
selectAll(ids: string[]): void {
this[selectionSymbol].selectAll(ids);
}
/**
* 移除选中的指定节点
* @param id
*/
remove(id: string): void {
this[selectionSymbol].remove(id);
}
/**
* 清除所有选中节点
*/
clear(): void {
this[selectionSymbol].clear();
}
/**
* 判断是否选中了指定节点
* @param id
* @returns
*/
has(id: string): boolean {
return this[selectionSymbol].has(id);
}
/**
* 选中指定节点（增量方式）
* @param id
*/
add(id: string): void {
this[selectionSymbol].add(id);
}
/**
* 获取选中的节点实例
* @returns
*/
getNodes(): IPublicModelNode[] {
const innerNodes = this[selectionSymbol].getNodes();
const nodes: IPublicModelNode[] = [];
innerNodes.forEach((node: InnerNode) => {
const shellNode = ShellNode.create(node);
if (shellNode) {
nodes.push(shellNode);
}
});
return nodes;
}
/**
* 获取选区的顶层节点
* for example:
* getNodes() returns [A, subA, B], then
* getTopNodes() will return [A, B], subA will be removed
* @returns
*/
getTopNodes(includeRoot: boolean = false): IPublicModelNode[] {
const innerNodes = this[selectionSymbol].getTopNodes(includeRoot);
const nodes: IPublicModelNode[] = [];
innerNodes.forEach((node: InnerNode) => {
const shellNode = ShellNode.create(node);
if (shellNode) {
nodes.push(shellNode);
}
});
return nodes;
}
onSelectionChange(fn: (ids: string[]) => void): IPublicTypeDisposable {
return this[selectionSymbol].onSelectionChange(fn);
}
}