UNPKG

@arcgis/core

Version:

ArcGIS Maps SDK for JavaScript: A complete 2D and 3D mapping and data visualization API

js.arcgis.com

6 lines (5 loc) • 649 B
1
2
3
4
5
6
/* All material copyright ESRI, All Rights Reserved, unless otherwise specified. See https://js.arcgis.com/4.32/esri/copyright.txt for details. */ var t;const o=Symbol();class s{constructor(o){this._operations=[],this._closed=!1,this[t]=!0,o&&(this._operations=o,this._closed=!0)}close(){this._closed=!0}apply(){for(const t of this._operations)t.apply()}undo(){for(let t=this._operations.length-1;t>=0;t--)this._operations[t].undo()}accumulate(t){if(this._closed)return!1;const o=this._operations.length?this._operations[this._operations.length-1]:null;return o&&o.accumulate(t)||(this._operations.push(t),t.apply()),!0}}t=o;export{s as UndoGroup};