Refactor unread message flagging

This fixes an issue where the interface wasn't able to update
when the unread message flag changed. It also cleans up some
ugly code

src/line_info.c

@@ -440,6 +440,10 @@ int line_info_add(ToxWindow *self, bool show_timestamp, const char *name1, const
     new_line->noread_flag = false;
     new_line->timestamp = get_unix_time();
 
+    if (type == OUT_MSG || type == OUT_ACTION) {
+        new_line->noread_flag = self->stb->connection == TOX_CONNECTION_NONE;
+    }
+
     line_info_init_line(self, new_line);
 
     hst->queue[hst->queue_size++] = new_line;
@@ -475,8 +479,6 @@ static void line_info_check_queue(ToxWindow *self)
     flag_interface_refresh();
 }
 
-#define NOREAD_FLAG_TIMEOUT 5    /* seconds before a sent message with no read receipt is flagged as unread */
-
 void line_info_print(ToxWindow *self)
 {
     ChatContext *ctx = self->chatwin;
@@ -577,12 +579,6 @@ void line_info_print(ToxWindow *self)
                     wattroff(win, COLOR_PAIR(RED));
                 }
 
-                if (type == OUT_MSG && !line->read_flag) {
-                    if (timed_out(line->timestamp, NOREAD_FLAG_TIMEOUT)) {
-                        line->noread_flag = true;
-                    }
-                }
-
                 waddch(win, '\n');
                 break;
 
@@ -602,12 +598,6 @@ void line_info_print(ToxWindow *self)
                 print_ret = print_wrap(win, line, max_x, max_y);
                 wattroff(win, COLOR_PAIR(YELLOW));
 
-                if (type == OUT_ACTION && !line->read_flag) {
-                    if (timed_out(line->timestamp, NOREAD_FLAG_TIMEOUT)) {
-                        line->noread_flag = true;
-                    }
-                }
-
                 waddch(win, '\n');
                 break;
 
@@ -771,6 +761,24 @@ void line_info_set(ToxWindow *self, uint32_t id, char *msg)
     }
 }
 
+/* Return the line_info object associated with `id`.
+ * Return NULL if id cannot be found
+ */
+struct line_info *line_info_get(ToxWindow *self, uint32_t id)
+{
+    struct line_info *line = self->chatwin->hst->line_end;
+
+    while (line) {
+        if (line->id == id) {
+            return line;
+        }
+
+        line = line->prev;
+    }
+
+    return NULL;
+}
+
 static void line_info_scroll_up(ToxWindow *self, struct history *hst)
 {
     if (hst->line_start->prev) {

src/line_info.h

@@ -96,6 +96,11 @@ void line_info_clear(struct history *hst);
 /* puts msg in specified line_info msg buffer */
 void line_info_set(ToxWindow *self, uint32_t id, char *msg);
 
+/* Return the line_info object associated with `id`.
+ * Return NULL if id cannot be found
+ */
+struct line_info *line_info_get(ToxWindow *self, uint32_t id);
+
 /* resets line_start (moves to end of chat history) */
 void line_info_reset_start(ToxWindow *self, struct history *hst);
 

src/message_queue.c

@@ -59,6 +59,7 @@ void cqueue_add(struct chat_queue *q, const char *msg, size_t len, uint8_t type,
     new_m->type = type;
     new_m->line_id = line_id;
     new_m->last_send_try = 0;
+    new_m->time_added = get_unix_time();
     new_m->receipt = -1;
     new_m->next = NULL;
 
@@ -76,23 +77,19 @@ void cqueue_add(struct chat_queue *q, const char *msg, size_t len, uint8_t type,
 /* update line to show receipt was received after queue removal */
 static void cqueue_mark_read(ToxWindow *self, struct cqueue_msg *msg)
 {
-    struct line_info *line = self->chatwin->hst->line_end;
-
-    while (line) {
-        if (line->id != msg->line_id) {
-            line = line->prev;
-            continue;
-        }
-
-        line->type = msg->type == OUT_ACTION ? OUT_ACTION_READ : OUT_MSG_READ;
-
-        if (line->noread_flag) {
-            line->noread_flag = false;
-            line->read_flag = true;
-        }
+    struct line_info *line = line_info_get(self, msg->line_id);
 
+    if (line == NULL) {
         return;
     }
+
+    line->type = msg->type == OUT_ACTION ? OUT_ACTION_READ : OUT_MSG_READ;
+
+    if (line->noread_flag) {
+        line->noread_flag = false;
+        line->read_flag = true;
+        flag_interface_refresh();
+    }
 }
 
 /* removes message with matching receipt from queue, writes to log and updates line to show the message was received. */
@@ -158,6 +155,36 @@ static void cqueue_check_timeouts(struct cqueue_msg *msg)
     }
 }
 
+/*
+ * Sets the noread flag for messages sent to the peer associated with `self` which have not
+ * received a receipt after a period of time.
+ */
+#define NOREAD_TIMEOUT 5
+void cqueue_check_unread(ToxWindow *self)
+{
+    struct chat_queue *q = self->chatwin->cqueue;
+    struct cqueue_msg *msg = q->root;
+
+    while (msg) {
+        if (msg->noread_flag) {
+            msg = msg->next;
+            continue;
+        }
+
+        struct line_info *line = line_info_get(self, msg->line_id);
+
+        if (line != NULL) {
+            if (timed_out(msg->time_added, NOREAD_TIMEOUT)) {
+                line->noread_flag = true;
+                msg->noread_flag = true;
+                flag_interface_refresh();
+            }
+        }
+
+        msg = msg->next;
+    }
+}
+
 /*
  * Tries to send all messages in the send queue in sequential order.
  * If a message fails to send the function will immediately return.

src/message_queue.h

@@ -28,8 +28,10 @@ struct cqueue_msg {
     size_t len;
     int line_id;
     time_t last_send_try;
+    time_t time_added;
     uint8_t type;
     int64_t receipt;
+    bool noread_flag;
     struct cqueue_msg *next;
     struct cqueue_msg *prev;
 };
@@ -48,6 +50,12 @@ void cqueue_add(struct chat_queue *q, const char *msg, size_t len, uint8_t type,
  */
 void cqueue_try_send(ToxWindow *self, Tox *m);
 
+/*
+ * Sets the noread flag for messages sent to the peer associated with `self` which have not
+ * received a receipt after a period of time.
+ */
+void cqueue_check_unread(ToxWindow *self);
+
 /* removes message with matching receipt from queue, writes to log and updates line to show the message was received. */
 void cqueue_remove(ToxWindow *self, Tox *m, uint32_t receipt);
 

src/toxic.c

@@ -1144,9 +1144,12 @@ void *thread_cqueue(void *data)
         for (size_t i = 2; i < MAX_WINDOWS_NUM; ++i) {
             ToxWindow *toxwin = get_window_ptr(i);
 
-            if ((toxwin != NULL) && (toxwin->type == WINDOW_TYPE_CHAT)
-                    && (get_friend_connection_status(toxwin->num) != TOX_CONNECTION_NONE)) {
-                cqueue_try_send(toxwin, m);
+            if ((toxwin != NULL) && (toxwin->type == WINDOW_TYPE_CHAT)) {
+                cqueue_check_unread(toxwin);
+
+                if (get_friend_connection_status(toxwin->num) != TOX_CONNECTION_NONE) {
+                    cqueue_try_send(toxwin, m);
+                }
             }
         }
 

src/windows.c

@@ -808,15 +808,18 @@ void draw_active_window(Tox *m)
         a->onDraw(a, m);
         wrefresh(a->window);
     }
+
 #ifdef AUDIO
     else if (a->is_call && timed_out(a->chatwin->infobox.lastupdate, 1)) {
         touchwin(a->window);
         a->onDraw(a, m);
         wrefresh(a->window);
     }
+
 #endif
 
 #ifdef GAMES
+
     if (a->type == WINDOW_TYPE_GAME) {
         if (!flag_refresh) {  // we always want to be continously refreshing game windows
             touchwin(a->window);