use a timer to make sure focus always reverts if possible

ChangeLog

@@ -1,5 +1,8 @@
  (Format: Year/Month/Day)
 Changes for 1.0rc3:
+*06/07/23:
+   * Use a timer to make sure focus always reverts if possible (Mark)
+     fluxbox.cc/hh and reverse patch from 06/07/20
 *06/07/22:
    * Ewmh compliance updates: (Mark)
      - implemented _NET_WM_MOVERESIZE_CANCEL (new in version 1.4.draft-1)

src/FbTk/FbWindow.hh

@@ -137,7 +137,7 @@ public:
     }
     virtual void lower();
     virtual void raise();
-    virtual void setInputFocus(int revert_to, int time);
+    void setInputFocus(int revert_to, int time);
     /// defines a cursor for this window
     void setCursor(Cursor cur);
 #ifdef NOT_USED

src/WinClient.cc

@@ -66,7 +66,6 @@ WinClient::WinClient(Window win, BScreen &screen, FluxboxWindow *fbwin):FbTk::Fb
                      m_modal(0),
                      send_focus_message(false),
                      send_close_message(false),
-                     m_waiting_focus(false),
                      m_win_gravity(0),
                      m_title(""), m_icon_title(""),
                      m_class_name(""), m_instance_name(""),
@@ -189,11 +188,6 @@ bool WinClient::sendFocus() {
     return true;
 }
 
-void WinClient::setInputFocus(int revert_to, int time) {
-    FbTk::FbWindow::setInputFocus(revert_to, time);
-    m_waiting_focus = true;
-}
-
 void WinClient::sendClose(bool forceful) {
     if (forceful || !send_close_message)
         XKillClient(display(), window());

src/WinClient.hh

@@ -53,9 +53,6 @@ public:
     bool sendFocus(); // returns whether we sent a message or not 
                       // i.e. whether we assume the focus will get taken
     bool acceptsFocus() const; // will this window accept focus (according to hints)
-    void setInputFocus(int revert_to, int time);
-    inline bool isWaitingFocus() { return m_waiting_focus; }
-    void receivedFocus() { m_waiting_focus = false; m_focussig.notify(); }
     void sendClose(bool forceful = false);
     // not aware of anything that makes this false at present
     inline bool isClosable() const { return true; }
@@ -200,7 +197,6 @@ private:
     // or indicates that we are modal if don't have any transients
     int m_modal;
     bool send_focus_message, send_close_message;
-    bool m_waiting_focus;
 
     int m_win_gravity;
 

src/Window.cc

@@ -2112,7 +2112,7 @@ void FluxboxWindow::setFocusFlag(bool focus) {
     if (was_focused != focus) {
         m_focussig.notify();
         if (m_client)
-            m_client->receivedFocus();
+            m_client->focusSig().notify();
     }
 }
 

src/fluxbox.cc

@@ -221,6 +221,7 @@ Fluxbox::Fluxbox(int argc, char **argv, const char *dpy_name, const char *rcfile
       m_masked(0),
       m_rc_file(rcfilename ? rcfilename : ""),
       m_argv(argv), m_argc(argc),
+      m_revert_screen(0),
       m_starting(true),
       m_restarting(false),
       m_shutdown(false),
@@ -273,6 +274,13 @@ Fluxbox::Fluxbox(int argc, char **argv, const char *dpy_name, const char *rcfile
     m_reconfig_timer.setTimeout(to);
     m_reconfig_timer.setCommand(reconfig_cmd);
     m_reconfig_timer.fireOnce(true);
+
+    // set a timer to revert focus on FocusOut, in case no FocusIn arrives
+    FbTk::RefCount<FbTk::Command> revert_cmd(new FbTk::SimpleCommand<Fluxbox>(*this, &Fluxbox::revert_focus));
+    m_revert_timer.setCommand(revert_cmd);
+    m_revert_timer.setTimeout(to);
+    m_revert_timer.fireOnce(true);
+
     // XSynchronize(disp, True);
 
     s_singleton = this;
@@ -681,9 +689,6 @@ void Fluxbox::handleEvent(XEvent * const e) {
                 break; // found the screen, no more search
             }
         }
-
-        if (screen != 0)
-            FocusControl::revertFocus(*screen);
     }
 
     // try FbTk::EventHandler first
@@ -877,9 +882,12 @@ void Fluxbox::handleEvent(XEvent * const e) {
 #endif // DEBUG
         } else if (winclient && winclient == FocusControl::focusedWindow() &&
                    (winclient->fbwindow() == 0
-                    || !winclient->fbwindow()->isMoving()))
+                    || !winclient->fbwindow()->isMoving())) {
             // we don't unfocus a moving window
             FocusControl::setFocusedWindow(0);
+            m_revert_screen = &winclient->screen();
+            m_revert_timer.start();
+        }
     }
 	break;
     case ClientMessage:
@@ -1300,8 +1308,9 @@ void Fluxbox::update(FbTk::Subject *changedsub) {
             FocusControl::unfocusWindow(client);
             // make sure nothing else uses this window before focus reverts
             FocusControl::setFocusedWindow(0);
-        } else if (!FocusControl::focusedWindow() && client.isWaitingFocus())
-            FocusControl::revertFocus(screen);
+            m_revert_screen = &screen;
+            m_revert_timer.start();
+        }
     }
 }
 
@@ -1776,6 +1785,11 @@ void Fluxbox::timed_reconfigure() {
     m_reconfigure_wait = m_reread_menu_wait = false;
 }
 
+void Fluxbox::revert_focus() {
+    if (m_revert_screen && !FocusControl::focusedWindow())
+        FocusControl::revertFocus(*m_revert_screen);
+}
+
 bool Fluxbox::validateClient(const WinClient *client) const {
     WinClientMap::const_iterator it =
         find_if(m_window_search.begin(),

src/fluxbox.hh

@@ -185,6 +185,7 @@ public:
     void attachSignals(WinClient &winclient);
 
     void timed_reconfigure();
+    void revert_focus();
 
     bool isStartup() const { return m_starting; }
     bool isRestarting() const { return m_restarting; }
@@ -289,7 +290,9 @@ private:
 
     XEvent m_last_event;
 
-    FbTk::Timer m_reconfig_timer; ///< when we execute reconfig command we must wait at least to next event round
+    ///< when we execute reconfig command we must wait until next event round
+    FbTk::Timer m_reconfig_timer, m_revert_timer;
+    BScreen *m_revert_screen;
 
     std::auto_ptr<Keys> m_key;