kitten-cloud-function
Version:
用于编程猫源码云功能（云变量、云列表等）的客户端工具
55 lines (54 loc) • 1.53 kB
JavaScript
import { None } from "../../../../utils/other";
import { KittenCloudDataUpdateSource } from "../kitten-cloud-data-update-source";
import { KittenCloudListUpdateCommand } from "./kitten-cloud-list-update-command";
export class KittenCloudListEmptyCommand extends KittenCloudListUpdateCommand {
constructor(source, list) {
super(source, list);
this.list = list;
this.backup = None;
}
execute() {
if (this.backup != None) {
throw new Error("无法执行命令：命令已被执行，不能重复执行");
}
this.backup = this.list.value;
this.list.value = [];
this.list.emptied.emit({
source: this.source,
list: this.backup.slice()
});
}
revoke() {
if (this.backup == None) {
throw new Error("无法撤销命令：命令尚未执行");
}
this.list.value = this.backup;
this.list.replacedAll.emit({
source: KittenCloudDataUpdateSource.REVOKE,
originalList: [],
newList: this.backup.slice()
});
this.backup = None;
}
isEffective() {
return true;
}
isLegal() {
return true;
}
toJSON() {
return {
method: "empty"
};
}
toCloudJSON() {
return {
action: "delete",
cvid: this.list.cvid,
nth: "all"
};
}
toString() {
return `清空云列表 ${this.data.name} `;
}
}