Merge pull request #91 from randrei12/main

fix blocks are injected twice

Author: nbudin

src/useBlocklyWorkspace.ts

@@ -11,6 +11,7 @@ function importFromXml(
   onImportXmlError?: (error: any) => void
 ) {
   try {
+    if (workspace.getAllBlocks(false).length > 0) return; // we won't load blocks again if they are already loaded
     Blockly.Xml.domToWorkspace(Blockly.Xml.textToDom(xml), workspace);
     return true;
   } catch (e) {
@@ -62,7 +63,7 @@ const useBlocklyWorkspace = ({
   }, [onDispose]);
 
   const handleWorkspaceChanged = React.useCallback(
-    (newWorkspace) => {
+    (newWorkspace: WorkspaceSvg) => {
       if (onWorkspaceChange) {
         onWorkspaceChange(newWorkspace);
       }