some focus fixes. always set the new focus when we fallback or else weird states appear. better handling of focusin's on clients that don't exist?

openbox/dock.c

@@ -28,7 +28,7 @@
 #include "render/theme.h"
 
 #define DOCK_EVENT_MASK (ButtonPressMask | ButtonReleaseMask | \
-                         EnterWindowMask | LeaveWindowMask)
+                         EnterWindowMask | LeaveWindowMask | FocusChangeMask)
 #define DOCKAPP_EVENT_MASK (StructureNotifyMask)
 
 static ObDock *dock;

openbox/event.c

@@ -307,15 +307,26 @@ static gboolean wanted_focusevent(XEvent *e, gboolean in_client_only)
                 return FALSE;
         }
 
+        /* This means focus moved to the frame window */
+        if (detail == NotifyInferior && !in_client_only)
+            return TRUE;
+
+        /* It was on a client, was it a valid one?
+           It's possible to get a FocusIn event for a client that was managed
+           but has disappeared. Don't even parse those FocusIn events.
+        */
+        {
+            ObWindow *w = g_hash_table_lookup(window_map, &e->xfocus.window);
+            if (!w || !WINDOW_IS_CLIENT(w))
+                return FALSE;
+        }
+
         /* This means focus moved from the root window to a client */
         if (detail == NotifyVirtual)
             return TRUE;
         /* This means focus moved from one client to another */
         if (detail == NotifyNonlinearVirtual)
             return TRUE;
-        /* This means focus moved to the frame window */
-        if (detail == NotifyInferior && !in_client_only)
-            return TRUE;
 
         /* Otherwise.. */
         return FALSE;
@@ -356,13 +367,7 @@ static Bool event_look_for_focusin(Display *d, XEvent *e, XPointer arg)
 
 Bool event_look_for_focusin_client(Display *d, XEvent *e, XPointer arg)
 {
-    ObWindow *w;
-
-    /* It is possible to get FocusIn events or unmanaged windows, meaning
-       they won't be for any known client */
-    return e->type == FocusIn && wanted_focusevent(e, TRUE) &&
-        (w = g_hash_table_lookup(window_map, &e->xfocus.window)) &&
-        WINDOW_IS_CLIENT(w);
+    return e->type == FocusIn && wanted_focusevent(e, TRUE);
 }
 
 static void print_focusevent(XEvent *e)
@@ -475,6 +480,7 @@ static void event_process(const XEvent *ec, gpointer data)
             e->xfocus.detail == NotifyInferior)
         {
             XEvent ce;
+
             ob_debug_type(OB_DEBUG_FOCUS,
                           "Focus went to pointer root/none or to our frame "
                           "window\n");
@@ -514,17 +520,6 @@ static void event_process(const XEvent *ec, gpointer data)
                     focus_fallback(TRUE);
             }
         }
-        else if (!client) {
-            /* It is possible to get FocusIn events or unmanaged windows,
-               meaning they won't be for any known client
-
-               If this happens, set the client to NULL so we know focus
-               has wandered off, and we'll get a focus out for it
-               shortly.
-            */
-            ob_debug_type(OB_DEBUG_FOCUS, "Focus went to an invalid target\n");
-            focus_set_client(NULL);
-        }
         else if (client != focus_client) {
             focus_left_screen = FALSE;
             frame_adjust_focus(client->frame, TRUE);

openbox/focus.c

@@ -280,19 +280,15 @@ ObClient* focus_fallback(gboolean allow_refocus)
     old = focus_client;
     new = focus_fallback_target(allow_refocus, focus_client);
 
-    /* send focus somewhere if it is moving or if it was NULL before,
-       in which case it may not even be on the screen */
-    if (!old || new != old) {
-        /* unfocus any focused clients.. they can be focused by Pointer events
-           and such, and then when we try focus them, we won't get a FocusIn
-           event at all for them. */
-        focus_nothing();
+    /* unfocus any focused clients.. they can be focused by Pointer events
+       and such, and then when we try focus them, we won't get a FocusIn
+       event at all for them. */
+    focus_nothing();
 
-        if (new) {
-            client_focus(new);
-            /* remember that we tried to send focus here */
-            focus_tried = new;
-        }
+    if (new) {
+        client_focus(new);
+        /* remember that we tried to send focus here */
+        focus_tried = new;
     }
 
     return new;

tests/showhide.c

@@ -42,7 +42,7 @@ int main () {
       XSetWindowBackground(display,win,WhitePixel(display,0)); 
       XMapWindow(display, win);
       XFlush(display);
-      usleep(10000);
+      usleep(1000);
       XDestroyWindow(display, win);
       XSync(display, False);