add a prefix to the extension for image embbedding sceneData (#5079)

src/constants.ts

@@ -94,7 +94,9 @@ export const MIME_TYPES = {
   excalidrawlib: "application/vnd.excalidrawlib+json",
   json: "application/json",
   svg: "image/svg+xml",
+  "excalidraw.svg": "image/svg+xml",
   png: "image/png",
+  "excalidraw.png": "image/png",
   jpg: "image/jpeg",
   gif: "image/gif",
   binary: "application/octet-stream",

src/data/filesystem.ts

@@ -13,7 +13,9 @@ type FILE_EXTENSION =
   | "gif"
   | "jpg"
   | "png"
+  | "excalidraw.png"
   | "svg"
+  | "excalidraw.svg"
   | "json"
   | "excalidraw"
   | "excalidrawlib";

src/data/index.ts

@@ -56,7 +56,7 @@ export const exportCanvas = async (
         {
           description: "Export to SVG",
           name,
-          extension: "svg",
+          extension: appState.exportEmbedScene ? "excalidraw.svg" : "svg",
           fileHandle,
         },
       );
@@ -89,7 +89,7 @@ export const exportCanvas = async (
     return await fileSave(blob, {
       description: "Export to PNG",
       name,
-      extension: "png",
+      extension: appState.exportEmbedScene ? "excalidraw.png" : "png",
       fileHandle,
     });
   } else if (type === "clipboard") {