add cycling of windows of the same class on all workspaces

util/epist/actions.hh

@@ -52,6 +52,8 @@ public:
 
     nextWindowOfClass, //done
     prevWindowOfClass, //done
+    nextWindowOfClassOnAllWorkspaces, //done
+    prevWindowOfClassOnAllWorkspaces, //done
 
     changeWorkspace, //done
     nextWorkspace, //done

util/epist/screen.cc

@@ -187,6 +187,14 @@ void screen::handleKeypress(const XEvent &e) {
         cycleWindow(false, false, true);
         return;
 
+      case Action::nextWindowOfClassOnAllWorkspaces:
+        cycleWindow(true, true, true);
+        return;
+
+      case Action::prevWindowOfClassOnAllWorkspaces:
+        cycleWindow(false, true, true);
+        return;
+
       case Action::changeWorkspace:
         changeWorkspace(it->number());
         return;