Make 'show completed tasks' persistent

UI/Scheduler/UIxCalMainView.m

@@ -212,6 +212,15 @@
    return (list && [list compare: @"tasksListView"] == NSOrderedSame)? @"active" : @"";
 }
 
+- (BOOL) showCompletedTasks
+{
+  BOOL show;
+
+  [self _setupContext];
+
+  return [[us objectForKey: @"ShowCompletedTasks"] boolValue];
+}
+
 - (WOResponse *) saveSelectedListAction
 {
   WORequest *request;

UI/Templates/SchedulerUI/UIxCalMainView.wox

@@ -182,7 +182,7 @@
                      autocomplete="off" type="text"
                      menuid="taskSearchMenu" />
             </span>
-            <input id="showHideCompletedTasks" type="checkbox" class="checkBox"/><var:string label:value="Show completed tasks"/>
+            <input id="showHideCompletedTasks" type="checkbox" class="checkBox" var:checked="showCompletedTasks"/><var:string label:value="Show completed tasks"/>
           </div>
           <table id="tasksList" cellspacing="0">
             <thead>

UI/WebServerResources/SchedulerUI.js

@@ -2198,20 +2198,14 @@ function refreshEvents() {
 function refreshTasks(setUserDefault) {
     var titleSearch;
     var value = search["tasks"]["value"];
-    var setud;
 
     if (value && value.length)
         titleSearch = "&search=" + escape(value.utf8encode());
     else
         titleSearch = "";
 
-    /* TODO: the logic behind this should be reimplemented properly:
-       the "taskslist" method should save the status when the 'show-completed'
-       is set to true and revert to the current status when that parameter is
-       NOT passed via the url. */
-    setud = "";
     if (setUserDefault == 1)
-      setud = "&setud=1";
+      titleSearch += "&setud=1";
 
     refreshAlarms();