Add pushback mode

dunstrc

@@ -294,6 +294,13 @@
 # NOTE: It might be helpful to run dunst -print in a terminal in order
 # to find fitting options for rules.
 
+# fullscreen values
+# show: show the notifications, regardless if there is a fullscreen window opened
+# delay: displays the new notification, if there is there is no fullscreen window active
+#        If the notification is already drawn, it won't get undrawn.
+# pushback: same as delay, but when switching into fullscreen, the notification will get
+#           withdrawn from screen again and will get delayed like a new notification
+
 #[fullscreen_delay_everything]
 #    fullscreen = delay
 #[fullscreen_show_critical]

src/notification.c

@@ -34,6 +34,7 @@ const char *enum_to_string_fullscreen(enum behavior_fullscreen in)
         switch (in) {
                 case FS_SHOW: return "show";
                 case FS_DELAY: return "delay";
+                case FS_PUSHBACK: return "pushback";
                 case FS_NULL: return "(null)";
                 default:
                         LOG_E("Enum behavior_fullscreen has wrong value.");

src/notification.h

@@ -12,6 +12,7 @@
 enum behavior_fullscreen {
         FS_NULL,      //!< Invalid value
         FS_DELAY,     //!< Delay the notification until leaving fullscreen mode
+        FS_PUSHBACK,  //!< When entering fullscreen mode, push the notification back to waiting
         FS_SHOW,      //!< Show the message when in fullscreen mode
 };
 

src/option_parser.c

@@ -561,6 +561,8 @@ enum behavior_fullscreen parse_enum_fullscreen(const char *string, enum behavior
                 return FS_SHOW;
         else if (strcmp(string, "delay") == 0)
                 return FS_DELAY;
+        else if (strcmp(string, "pushback") == 0)
+                return FS_PUSHBACK;
         else {
                 LOG_W("Unknown fullscreen value: '%s'\n", string);
                 return def;

src/queues.c

@@ -332,6 +332,22 @@ void queues_update(bool fullscreen)
                 return;
         }
 
+        /* move notifications back to queue, which are set to pushback */
+        if (fullscreen) {
+                GList *iter = g_queue_peek_head_link(displayed);
+                while (iter) {
+                        notification *n = iter->data;
+                        GList *nextiter = iter->next;
+
+                        if (n->fullscreen == FS_PUSHBACK){
+                                g_queue_delete_link(displayed, iter);
+                                g_queue_insert_sorted(waiting, n, notification_cmp_data, NULL);
+                        }
+
+                        iter = nextiter;
+                }
+        }
+
         /* move notifications from queue to displayed */
         GList *iter = g_queue_peek_head_link(waiting);
         while (iter) {
@@ -346,7 +362,8 @@ void queues_update(bool fullscreen)
                 if (!n)
                         return;
 
-                if (fullscreen && n->fullscreen == FS_DELAY) {
+                if (fullscreen
+                    && (n->fullscreen == FS_DELAY || n->fullscreen == FS_PUSHBACK)) {
                         iter = nextiter;
                         continue;
                 }