focus a window if it's the only one.

Thanks Jonas Koelker

ChangeLog

@@ -1,6 +1,9 @@
 (Format: Year/Month/Day)
 Changes for 0.9.16:
 *06/04/23:
+   * Focus singular windows on a workspace (Simon / thanks Jonas Koelker)
+     sf.net patch #1474722
+     Window.cc
    * Tidy up window cycling, and make linear mode work in order of 
      creation (Thanks Mark Tiefenbruck, mark at tiefenbruck dot org)
      FocusControl.hh/cc

src/Window.cc

@@ -1546,7 +1546,8 @@ void FluxboxWindow::deiconify(bool reassoc, bool do_raise) {
 
     show();
 
-    if (was_iconic && screen().focusControl().focusNew())
+    // focus new, OR if it's the only window on the workspace
+    if (was_iconic && (screen().focusControl().focusNew() || screen().currentWorkspace()->numberOfWindows() == 1))
         setInputFocus();