From: Scott Worley <ScottWorley@ScottWorley.com>
Date: Wed, 19 Dec 2012 16:10:28 +0000 (-0800)
Subject: Don't show a stale download link while running
X-Git-Url: http://git.scottworley.com/nt3d/commitdiff_plain/f72a4188261299dcb24dd9a0d4ebb91fa0479227

Don't show a stale download link while running
---

diff --git a/nt3d.js b/nt3d.js
index 4cec096..5f7fad7 100644
--- a/nt3d.js
+++ b/nt3d.js
@@ -197,6 +197,16 @@ nt3d = {
 			center);
 	},
 	go: function() {
+		// Remove any previous download links
+		var old_download_link = document.getElementById("nt3d_download");
+		if (old_download_link) {
+			old_download_link.parentNode.removeChild(old_download_link);
+		}
+
+		// Continue in a callback, so that there's not a stale download
+		// link hanging around while we process.
+		setTimeout(function(the_this) { (function() {
+
 		// Get params from form
 		var params = [];
 		for (var i = 0; i < this.user_params.length; i++) {
@@ -229,11 +239,6 @@ nt3d = {
 		}
 		this.stl += "endsolid " + this.user_function.name + "\n";
 
-		// Remove any previous download links
-		var old_download_link = document.getElementById("nt3d_download");
-		if (old_download_link) {
-			old_download_link.parentNode.removeChild(old_download_link);
-		}
 
 		// Offer result as download
 		var download_link = document.createElement("a");
@@ -244,6 +249,8 @@ nt3d = {
 		download_link.setAttribute("href", "data:application/sla," + encodeURIComponent(this.stl));
 		this.ui.appendChild(download_link);
 		setTimeout(function() { download_link.setAttribute("style", "-webkit-transition: background-color 0.4s; -moz-transition: background-color 0.4s; -o-transition: background-color 0.4s; -ms-transition: background-color 0.4s; transition: background-color 0.4s; background-color: inherit"); }, 0);
+
+		}).call(the_this); }, 0, this); // (We were in a callback this whole time, remember?)
 	},
 	framework: function (f, params) {
 		this.user_function = f;