# HG changeset patch
# User Matti Hamalainen <ccr@tnsp.org>
# Date 1530835108 -10800
# Node ID 2d4b56e4d9664d64766d2ff59b3e42f7d17323ba
# Parent  517348a7b543a4e79d63bfbf7c9f82c9003dd057
Improve mpSaveBinaryFile() to also handle string format data. Also improve
error handling.

diff -r 517348a7b543 -r 2d4b56e4d966 multipaint.pde
--- a/multipaint.pde	Fri Jul 06 02:10:59 2018 +0300
+++ b/multipaint.pde	Fri Jul 06 02:58:28 2018 +0300
@@ -292,10 +292,27 @@
 // "Save" a byte array to file. Basically creates a blob URI
 // and dumps it in the DOM, giving user a download.
 //
-void mpSaveBinaryFile(String name, byte[] data)
+bool mpSaveBinaryFile(String name, byte[] data)
 {
-    var blob = new Blob([new Uint8Array(data)], {type: "application/octet-stream"}),
-        url = window.URL.createObjectURL(blob);
+    var blob = null;
+    if (typeof(data) == "string")
+        blob = new Blob([data], {type: "application/octet-stream"});
+    else
+    if (typeof(data) == "object")
+        blob = new Blob([new Uint8Array(data)], {type: "application/octet-stream"});
+
+    if (blob == null)
+    {
+        console.log("Could not create BLOB from data.");
+        return false;
+    }
+
+    var url = window.URL.createObjectURL(blob);
+    if (url == null)
+    {
+        console.log("Could not create URL from BLOB object.");
+        return false;
+    }
 
     var alink = stCE("a");
     var mpUI = stGE("mpUI");
@@ -308,6 +325,7 @@
     alink.click();
 
     window.URL.revokeObjectURL(url);
+    return true;
 }