From 52612423df25d962a8e445c0bbc68fe87ef58940 Mon Sep 17 00:00:00 2001
From: Chris Adams <chris@improbable.org>
Date: Tue, 24 Nov 2009 16:47:58 -0500
Subject: Persistent Index Sorting

Now the index page will remember its sort options across page loads, which
means you can click on an item, view its report and return without the index
resetting to its default order
---
 coverage/htmlfiles/index.html | 68 +++++++++++++++++++++++++++++++++++++------
 1 file changed, 59 insertions(+), 9 deletions(-)

(limited to 'coverage/htmlfiles')

diff --git a/coverage/htmlfiles/index.html b/coverage/htmlfiles/index.html
index faef93b6..cd5a27b6 100644
--- a/coverage/htmlfiles/index.html
+++ b/coverage/htmlfiles/index.html
@@ -74,17 +74,67 @@
         </div>
 
         <script type="text/javascript" charset="utf-8">
-            jQuery(function() {
-                jQuery("table.index").tablesorter({
-                    headers: {
-                        0: { sorter:'text' },
-                        1: { sorter:'digit' },
-                        2: { sorter:'digit' },
-                        3: { sorter:'digit' },
-                        4: { sorter:'percent' },
+            jQuery(function($) {
+                // Look for a cookie containing previous sort settings:
+                sort_list = [];
+                cookie_name = "COVERAGE_INDEX_SORT";
+
+                // This almost makes it worth installing the jQuery cookie plugin:
+                if (document.cookie.indexOf(cookie_name) > -1) {
+                    cookies = document.cookie.split(";");
+                    for (var i=0; i < cookies.length; i++) {
+                        parts = cookies[i].split("=")
+
+                        if ($.trim(parts[0]) == cookie_name && parts[1]) {
+                            sort_list = eval("[[" + parts[1] + "]]");
+                            break;
+                        }
+                    }
+                }
+
+                // Create a new widget which exists only to save and restore
+                // the sort order:
+                $.tablesorter.addWidget({
+                    id: "persistentSort",
+
+                    // Format is called by the widget before displaying:
+                    format: function(table) {
+                        if (table.config.sortList.length == 0 && sort_list.length > 0) {
+                            // This table hasn't been sorted before - we'll use
+                            // our stored settings:
+                            jQuery(table).trigger('sorton', [sort_list]);
+                        } else {
+                            // This is not the first load - something has
+                            // already defined sorting so we'll just update         
+                            // our stored value to match:
+                            sort_list = table.config.sortList;
+                        }
                     }
                 });
-            });
+
+                // Configure our tablesorter to handle the variable number of
+                // columns produced depending on report options:
+                var headers = {};
+                var col_count = jQuery("table.index > thead > tr > th").length;
+
+                for (var i = 0; i < col_count; i++) {
+                    headers[i] = {sorter: "digit"};
+                }
+
+                headers[0]           = { sorter:'text' };
+                headers[col_count-1] = { sorter:'percent' };
+
+                // Enable the table sorter:
+                $("table.index").tablesorter({
+                    widgets: ['persistentSort'],
+                    headers: headers
+                });
+            
+                // Watch for page unload events so we can save the final sort settings:
+                $(window).unload(function() { 
+                    document.cookie = cookie_name + "=" + sort_list.toString() + "; path=/" 
+                });
+            });            
         </script>        
     </body>
 </html>
-- 
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