Attempt #1 on preserving savegame files

src/js/platform/browser/storage.js

@@ -58,11 +58,6 @@ export class StorageImplBrowser extends StorageInterface {
         });
     }
 
-    writeFileSyncIfSupported(filename, contents) {
-        window.localStorage.setItem(filename, contents);
-        return true;
-    }
-
     readFileAsync(filename) {
         if (this.currentBusyFilename === filename) {
             logger.warn("Attempt to read", filename, "while write progress on it is ongoing!");

src/js/platform/browser/storage_indexed_db.js

@@ -94,12 +94,6 @@ export class StorageImplBrowserIndexedDB extends StorageInterface {
         });
     }
 
-    writeFileSyncIfSupported(filename, contents) {
-        // Not supported
-        this.writeFileAsync(filename, contents);
-        return true;
-    }
-
     readFileAsync(filename) {
         if (!this.database) {
             return Promise.reject("Storage not ready");

src/js/platform/electron/storage.js

@@ -46,14 +46,6 @@ export class StorageImplElectron extends StorageInterface {
         });
     }
 
-    writeFileSyncIfSupported(filename, contents) {
-        return getIPCRenderer().sendSync("fs-sync-job", {
-            type: "write",
-            filename,
-            contents,
-        });
-    }
-
     readFileAsync(filename) {
         return new Promise((resolve, reject) => {
             // ipcMain

src/js/platform/storage.js

@@ -30,16 +30,6 @@ export class StorageInterface {
         return Promise.reject();
     }
 
-    /**
-     * Tries to write a file synchronously, used in unload handler
-     * @param {string} filename
-     * @param {string} contents
-     */
-    writeFileSyncIfSupported(filename, contents) {
-        abstract;
-        return false;
-    }
-
     /**
      * Reads a string asynchronously. Returns Promise<FILE_NOT_FOUND> if file was not found.
      * @param {string} filename