[PATCH hg-website-content] downloads: put each available version into a separate table

[David Champion]

# HG changeset patch
# User David Champion <dgc at uchicago.edu>
# Date 1290526584 21600
# Node ID bdab8d06d6ba39155f35d0ad45b0925e44f0c0e5
# Parent  6e7e8b5aa2c317fb1d185265b87d64f054e6c9fa
downloads: put each available version into a separate table

With this update we generate a separate table on the /downloads page for
each version that is represented in sources.js.  Downloader.maxversions
is the number of versions to display by default; 0 means to display all.
If any versions are not displayed by default, a "more versions" label
appears.  Clicking it reveals the remaining versions.

diff -r 6e7e8b5aa2c3 -r bdab8d06d6ba downloads/index.html
--- a/downloads/index.html	Sat Nov 20 19:53:07 2010 -0600
+++ b/downloads/index.html	Tue Nov 23 09:36:24 2010 -0600
@@ -3,23 +3,46 @@
 {% block content %}
 
     <h1>Mercurial downloads</h1>
-    <table border="0" cellspacing="0" cellpadding="0" class="latest" width="100%">
-        <thead>
-            <tr>
-                <th>Mercurial
-                    <script language="javascript">
-                    dl.write('version');
-                    </script></th>
-                <th></th>
-                <th></th>
-            </tr>
-        </thead>
-        <tbody>
-            <script language="javascript">
-            Downloader.listall();
-            </script>
-        </tbody>
-    </table>
+    <script language="javascript">
+        var versions = Downloader.versions();
+        var more = Downloader.maxversions &&
+                   versions.length > Downloader.maxversions;
+
+        // Show tables for Downloader.maxversions versions
+        for (i in versions) {
+            if (more && i >= Downloader.maxversions)
+                break;
+            // Need to localize this variable to closure it correctly
+            var current = versions[i];
+            document.write(Downloader.table(versions[i], function (o) {
+                return o.version == current;
+            }));
+        }
+
+        function exposeversions (node) {
+            // Emit but do not render tables for remaining versions
+            var html = ''
+            for (i in versions) {
+                if (i < Downloader.maxversions)
+                    continue;
+                // Need to localize this variable to closure it correctly
+                var current = versions[i];
+                html += Downloader.table(versions[i], function (o) {
+                    return o.version == current;
+                });
+            }
+            node.innerHTML = html;
+        }
+
+        if (more) {
+            document.write('\
+    <div onclick="exposeversions(this);">\
+        <center id="more">[more versions]</center>\
+    </div>\
+    <br/>\
+');
+        }
+    </script>
 
     <h5>Requirements</h5>
     <dl>