picolisp

commit 5ea5b055514c7432755cd5570180c92314ec87b9
parent 73e36d5258a78e366ab77048101947afb77b880d
Author: Alexander Burger <abu@software-lab.de>
Date:   Tue, 21 May 2013 11:19:05 +0200

Local request object in Canvas
Diffstat:
M
lib/canvas.js
 | 
20
+++++++++-----------

1 file changed, 9 insertions(+), 11 deletions(-)
diff --git a/lib/canvas.js b/lib/canvas.js
@@ -1,21 +1,19 @@
-/* 16may13abu
+/* 21may13abu
  * (c) Software Lab. Alexander Burger
  */
 
-var DrawReq = new XMLHttpRequest();
-
 function drawCanvas(id, dly) {
-   if (!DrawReq)
-      return true;
+   var req = new XMLHttpRequest();
+
    try {
-      DrawReq.open("POST",
+      req.open("POST",
          document.getElementsByTagName("BASE")[0].href + SesId +
          "!jsDraw?" + id );
-      DrawReq.responseType = "arraybuffer";
+      req.responseType = "arraybuffer";
    }
    catch (e) {return true;}
-   DrawReq.onload = function() {
-      var lst = plio(new Uint8Array(DrawReq.response));
+   req.onload = function() {
+      var lst = plio(new Uint8Array(req.response));
       var cmd, i;
 
       if (lst) {
@@ -125,9 +123,9 @@ function drawCanvas(id, dly) {
       }
       setTimeout(function() {drawCanvas(id, dly)}, dly);
    }
-   try {DrawReq.send(null);}
+   try {req.send(null);}
    catch (e) {
-      DrawReq.abort();
+      req.abort();
       return true;
    }
    return false;