Add GetEditorStateAsString in events

public/smartcomponent/svg-layout-designer.ts

@@ -204,6 +204,17 @@
             component.dispatchEvent(new CustomEvent(eventType));
         }
 
+        /**
+         * Return in a callback the current history of the editor as string
+         * @param callback 
+         */
+        public GetEditorStateAsString(callback: (state: string) => void) {
+            const eventType = 'getEditorStateAsString';
+            this.app.AddEventListener(eventType, callback);
+            const component = this.GetEditorComponent();
+            component.dispatchEvent(new CustomEvent(eventType));
+        }
+
         /**
          * Set the current history of the editor
          * @param history Whole history of the editor

src/Events/EditorEvents.ts

@@ -5,7 +5,7 @@ import { GetCurrentHistory } from '../Components/Editor/Editor';
 import { IEditorState } from '../Interfaces/IEditorState';
 import { IHistoryState } from '../Interfaces/IHistoryState';
 import { FindContainerById } from '../utils/itertools';
-import { Revive, ReviveHistory as ReviveHistoryAction } from '../utils/saveload';
+import { GetCircularReplacer, Revive, ReviveHistory as ReviveHistoryAction } from '../utils/saveload';
 
 export interface IEditorEvent {
   name: string
@@ -19,6 +19,7 @@ export interface IEditorEvent {
 
 export const events: IEditorEvent[] = [
   { name: 'getEditorState', func: GetEditorState },
+  { name: 'getEditorStateAsString', func: GetEditorStateAsString },
   { name: 'setHistory', func: SetHistory },
   { name: 'reviveEditorState', func: ReviveEditorState },
   { name: 'reviveHistory', func: ReviveHistory },
@@ -41,6 +42,14 @@ function GetEditorState(root: Element | Document,
   root.dispatchEvent(customEvent);
 }
 
+function GetEditorStateAsString(root: Element | Document,
+  editorState: IEditorState): void {
+  const spaces = import.meta.env.DEV ? 4 : 0;
+  const data = JSON.stringify(editorState, GetCircularReplacer(), spaces);
+  const customEvent = new CustomEvent<string>('getEditorStateAsString', { detail: data });
+  root.dispatchEvent(customEvent);
+}
+
 function SetHistory(root: Element | Document,
   editorState: IEditorState,
   setNewHistory: (newHistory: IHistoryState[]) => void,
@@ -70,7 +79,7 @@ function ReviveHistory(
   eventInitDict?: CustomEventInit): void {
   const history: IHistoryState[] = eventInitDict?.detail;
   ReviveHistoryAction(history);
-  const customEvent = new CustomEvent<IHistoryState[]>('reviveEditorState', { detail: history });
+  const customEvent = new CustomEvent<IHistoryState[]>('reviveHistory', { detail: history });
   root.dispatchEvent(customEvent);
 }