When a winlink is linked in to multiple sessions, make the alert appear
across all sessions where that winlink is linked to, and on clearing it,
ensure *all* instances of that alert are cleared.
---

 V2:  Clear more window->flags than just WINDOW_BELL.

 trunk/server-window.c |   11 ++++++++---
 trunk/session.c       |    8 ++++----
 trunk/tmux.h          |    2 ++
 trunk/window.c        |   31 +++++++++++++++++++++++++++++++
 4 files changed, 45 insertions(+), 7 deletions(-)

diff --git a/trunk/server-window.c b/trunk/server-window.c
index 2fc0e21..b87a4e5 100644
--- a/trunk/server-window.c
+++ b/trunk/server-window.c
@@ -56,9 +56,6 @@ server_window_loop(void)
                                server_status_session(s);
                        TAILQ_FOREACH(wp, &w->panes, entry)
                                server_window_check_content(s, wl, wp);
-
-                       if (!(s->flags & SESSION_UNATTACHED))
-                               w->flags &= ~(WINDOW_BELL|WINDOW_ACTIVITY);
                }
        }
 }
@@ -78,6 +75,8 @@ server_window_check_bell(struct session *s, struct winlink 
*wl)
                wl->flags |= WINLINK_BELL;
        if (s->flags & SESSION_UNATTACHED)
                return (1);
+       if (s->curw->window == wl->window)
+               w->flags &= ~WINDOW_BELL;
 
        visual = options_get_number(&s->options, "visual-bell");
        action = options_get_number(&s->options, "bell-action");
@@ -107,6 +106,9 @@ server_window_check_activity(struct session *s, struct 
winlink *wl)
        struct window   *w = wl->window;
        u_int            i;
 
+       if (s->curw->window == wl->window)
+               w->flags &= ~WINDOW_ACTIVITY;
+
        if (!(w->flags & WINDOW_ACTIVITY) || wl->flags & WINLINK_ACTIVITY)
                return (0);
        if (s->curw == wl && !(s->flags & SESSION_UNATTACHED))
@@ -195,6 +197,9 @@ server_window_check_content(
        char            *found, *ptr;
 
        /* Activity flag must be set for new content. */
+       if (s->curw->window == w)
+               w->flags &= ~WINDOW_ACTIVITY;
+
        if (!(w->flags & WINDOW_ACTIVITY) || wl->flags & WINLINK_CONTENT)
                return (0);
        if (s->curw == wl && !(s->flags & SESSION_UNATTACHED))
diff --git a/trunk/session.c b/trunk/session.c
index 0d3b8dd..13be0c7 100644
--- a/trunk/session.c
+++ b/trunk/session.c
@@ -352,7 +352,7 @@ session_next(struct session *s, int alert)
        winlink_stack_remove(&s->lastw, wl);
        winlink_stack_push(&s->lastw, s->curw);
        s->curw = wl;
-       wl->flags &= ~WINLINK_ALERTFLAGS;
+       winlink_clear_flags(wl);
        return (0);
 }
 
@@ -389,7 +389,7 @@ session_previous(struct session *s, int alert)
        winlink_stack_remove(&s->lastw, wl);
        winlink_stack_push(&s->lastw, s->curw);
        s->curw = wl;
-       wl->flags &= ~WINLINK_ALERTFLAGS;
+       winlink_clear_flags(wl);
        return (0);
 }
 
@@ -407,7 +407,7 @@ session_select(struct session *s, int idx)
        winlink_stack_remove(&s->lastw, wl);
        winlink_stack_push(&s->lastw, s->curw);
        s->curw = wl;
-       wl->flags &= ~WINLINK_ALERTFLAGS;
+       winlink_clear_flags(wl);
        return (0);
 }
 
@@ -426,7 +426,7 @@ session_last(struct session *s)
        winlink_stack_remove(&s->lastw, wl);
        winlink_stack_push(&s->lastw, s->curw);
        s->curw = wl;
-       wl->flags &= ~WINLINK_ALERTFLAGS;
+       winlink_clear_flags(wl);
        return (0);
 }
 
diff --git a/trunk/tmux.h b/trunk/tmux.h
index d0dc122..455affb 100644
--- a/trunk/tmux.h
+++ b/trunk/tmux.h
@@ -2054,6 +2054,8 @@ struct window_pane *window_pane_find_down(struct 
window_pane *);
 struct window_pane *window_pane_find_left(struct window_pane *);
 struct window_pane *window_pane_find_right(struct window_pane *);
 void            window_set_name(struct window *, const char *);
+void            winlink_clear_flags(struct winlink *);
+
 
 /* layout.c */
 u_int           layout_count_cells(struct layout_cell *);
diff --git a/trunk/window.c b/trunk/window.c
index 8eb11f2..c1ba0aa 100644
--- a/trunk/window.c
+++ b/trunk/window.c
@@ -1174,3 +1174,34 @@ window_pane_find_right(struct window_pane *wp)
        }
        return (NULL);
 }
+
+/* Clear alert flags for a winlink */
+void
+winlink_clear_flags(struct winlink *wl)
+{
+       struct winlink  *wm;
+       struct session  *s;
+       struct window   *w;
+       u_int            i;
+
+       for (i = 0; i < ARRAY_LENGTH(&windows); i++)
+       {
+               if ((w = ARRAY_ITEM(&windows, i)) == NULL)
+                       continue;
+
+               RB_FOREACH(s, sessions, &sessions)
+               {
+                       if ((wm = session_has(s, w)) == NULL)
+                               continue;
+
+                       if (wm->flags & WINLINK_ALERTFLAGS &&
+                               wm->window == wl->window)
+                       {
+                               wm->flags &= ~WINLINK_ALERTFLAGS;
+                               w->flags &= ~(WINDOW_BELL|WINDOW_ACTIVITY);
+
+                               server_redraw_session(s);
+                       }
+               }
+       }
+}
-- 
1.7.10


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