Greatly reduce redundant window refreshing

This should substantially reduce CPU usage and possibly fix some
issues with interface jittering/flashing

INSTALL.md

@@ -10,7 +10,7 @@
 ## Dependencies
 | Name                                                 | Needed by                  | Debian package      |
 |------------------------------------------------------|----------------------------|---------------------|
-| [Tox Core](https://github.com/toktok/c-toxcore)      | BASE                       | *None*              |
+| [Tox Core](https://github.com/toktok/c-toxcore)      | BASE                       | libtoxcore-dev      |
 | [NCurses](https://www.gnu.org/software/ncurses)      | BASE                       | libncursesw5-dev    |
 | [LibConfig](http://www.hyperrealm.com/libconfig)     | BASE                       | libconfig-dev       |
 | [GNUmake](https://www.gnu.org/software/make)         | BASE                       | make                |
@@ -55,8 +55,8 @@ Run `make doc` in the build directory after editing the asciidoc files to regene
   * `DISABLE_X11=1` → Disable X11 support (needed for focus tracking)
   * `DISABLE_AV=1` → Disable audio call support
   * `DISABLE_SOUND_NOTIFY=1` → Disable sound notifications support
-  * `DISABLE_QRCODE` → Disable QR exporting support
+  * `DISABLE_QRCODE=1` → Disable QR exporting support
-  * `DISABLE_QRPNG` → Disable support for exporting QR as PNG
+  * `DISABLE_QRPNG=1` → Disable support for exporting QR as PNG
   * `DISABLE_DESKTOP_NOTIFY=1` → Disable desktop notifications support
   * `DISABLE_GAMES=1` → Disable support for games
   * `ENABLE_PYTHON=1` → Build toxic with Python scripting support

script/build-minimal-static-toxic.sh

@@ -131,11 +131,15 @@ mkdir -p "$BUILD_DIR"
 # Build Toxcore
 cd "$BUILD_DIR"
 
+# The git hash of the c-toxcore version we're using
 TOXCORE_VERSION="25a56c354937e9c8c4c50a64c3b4cfc099c34e29"
-TOXCORE_HASH="78749dccfd2e6ec95d59d7a07c882aa034754a9ff62113b95281927e71b42574"
+
+# The sha256sum of the c-toxcore tarball for TOXCORE_VERSION
+TOXCORE_HASH="8448752e6286c747130254571fde2db8e2fc073a8116f9fff489ed53af546c0a"
+
 TOXCORE_FILENAME="c-toxcore-$TOXCORE_VERSION.tar.gz"
 
-wget --timeout=10 -O "$TOXCORE_FILENAME" "https://github.com/TokTok/c-toxcore/archive/master.tar.gz"
+wget --timeout=10 -O "$TOXCORE_FILENAME" "https://github.com/TokTok/c-toxcore/archive/$TOXCORE_VERSION.tar.gz"
 check_sha256 "$TOXCORE_HASH" "$TOXCORE_FILENAME"
 tar -o -xf "$TOXCORE_FILENAME"
 rm "$TOXCORE_FILENAME"
@@ -160,8 +164,8 @@ cmake --build _build --target install
 # location with SSL_CERT_FILE env variable.
 cd "$BUILD_DIR"
 
-CURL_VERSION="7.74.0"
+CURL_VERSION="7.77.0"
-CURL_HASH="e56b3921eeb7a2951959c02db0912b5fcd5fdba5aca071da819e1accf338bbd7"
+CURL_HASH="b0a3428acb60fa59044c4d0baae4e4fc09ae9af1d8a3aa84b2e3fbcd99841f77"
 CURL_FILENAME="curl-$CURL_VERSION.tar.gz"
 
 wget --timeout=10 -O "$CURL_FILENAME" "https://curl.haxx.se/download/$CURL_FILENAME"
@@ -178,7 +182,8 @@ cd curl*
   --without-ca-path \
   --with-ca-fallback \
   --with-nghttp2 \
-  --with-brotli
+  --with-brotli \
+  --with-openssl
 make
 make install
 sed -i 's|-lbrotlidec |-lbrotlidec-static -lbrotlicommon-static |g' $BUILD_DIR/prefix-curl/lib/pkgconfig/libcurl.pc

src/chat.c

@@ -1072,13 +1072,12 @@ static void draw_infobox(ToxWindow *self)
 
     time_t curtime = get_unix_time();
 
-    /* update elapsed time string once per second */
+    /* update interface once per second */
-    if (curtime > infobox->lastupdate) {
+    if (timed_out(infobox->lastupdate, 1)) {
         get_elapsed_time_str(infobox->timestr, sizeof(infobox->timestr), curtime - infobox->starttime);
+        infobox->lastupdate = curtime;
     }
 
-    infobox->lastupdate = curtime;
-
     const char *in_is_muted = infobox->in_is_muted ? "yes" : "no";
     const char *out_is_muted = infobox->out_is_muted ? "yes" : "no";
 
@@ -1307,12 +1306,14 @@ static void chat_onDraw(ToxWindow *self, Tox *m)
                 break;
         }
 
+        const char *connection_status_s = statusbar->connection == TOX_CONNECTION_TCP ? "TCP" : "UDP";
+
         wattron(statusbar->topline, COLOR_PAIR(BAR_ACCENT));
         wprintw(statusbar->topline, " [");
         wattroff(statusbar->topline, COLOR_PAIR(BAR_ACCENT));
 
         wattron(statusbar->topline, COLOR_PAIR(colour) | A_BOLD);
-        wprintw(statusbar->topline, "%s", ONLINE_CHAR);
+        wprintw(statusbar->topline, "%s", connection_status_s);
         wattroff(statusbar->topline, COLOR_PAIR(colour) | A_BOLD);
 
         wattron(statusbar->topline, COLOR_PAIR(BAR_ACCENT));
@@ -1342,7 +1343,7 @@ static void chat_onDraw(ToxWindow *self, Tox *m)
         wattroff(statusbar->topline, COLOR_PAIR(BAR_ACCENT));
 
         wattron(statusbar->topline, COLOR_PAIR(BAR_TEXT));
-        wprintw(statusbar->topline, "%s", OFFLINE_CHAR);
+        wprintw(statusbar->topline, "Offline");
         wattroff(statusbar->topline, COLOR_PAIR(BAR_TEXT));
 
         wattron(statusbar->topline, COLOR_PAIR(BAR_ACCENT));

src/game_base.c

@@ -540,20 +540,20 @@ static void game_draw_border(const GameData *game, const int max_x, const int ma
     const int x = (max_x - game_max_x) / 2;
     const int y = (max_y - game_max_y) / 2;
 
-    wattron(win, A_BOLD | COLOR_PAIR(GAME_BORDER_COLOUR));
+    wattron(win, COLOR_PAIR(GAME_BORDER_COLOUR));
 
-    mvwaddch(win, y, x, ' ');
+    mvwaddch(win, y, x, ACS_ULCORNER);
-    mvwhline(win, y, x + 1, ' ', game_max_x - 1);
+    mvwhline(win, y, x + 1, ACS_HLINE, game_max_x - 1);
-    mvwvline(win, y + 1, x, ' ', game_max_y - 1);
+    mvwvline(win, y + 1, x, ACS_VLINE, game_max_y - 1);
-    mvwvline(win, y, x - 1, ' ', game_max_y + 1);
+    mvwvline(win, y, x - 1, ACS_VLINE, game_max_y + 1);
-    mvwaddch(win, y, x + game_max_x, ' ');
+    mvwaddch(win, y, x + game_max_x, ACS_URCORNER);
-    mvwvline(win, y + 1, x + game_max_x, ' ', game_max_y - 1);
+    mvwvline(win, y + 1, x + game_max_x, ACS_VLINE, game_max_y - 1);
-    mvwvline(win, y, x + game_max_x + 1, ' ', game_max_y + 1);
+    mvwvline(win, y, x + game_max_x + 1, ACS_VLINE, game_max_y + 1);
-    mvwaddch(win, y + game_max_y, x, ' ');
+    mvwaddch(win, y + game_max_y, x, ACS_LLCORNER);
-    mvwhline(win, y + game_max_y, x + 1, ' ', game_max_x - 1);
+    mvwhline(win, y + game_max_y, x + 1, ACS_HLINE, game_max_x - 1);
-    mvwaddch(win, y + game_max_y, x + game_max_x, ' ');
+    mvwaddch(win, y + game_max_y, x + game_max_x, ACS_LRCORNER);
 
-    wattroff(win, A_BOLD | COLOR_PAIR(GAME_BORDER_COLOUR));
+    wattroff(win, COLOR_PAIR(GAME_BORDER_COLOUR));
 }
 
 static void game_draw_status(const GameData *game, const int max_x, const int max_y)
@@ -561,7 +561,7 @@ static void game_draw_status(const GameData *game, const int max_x, const int ma
     WINDOW *win = game->window;
 
     int x = ((max_x - game->game_max_x) / 2) - 1;
-    int y = ((max_y - game->game_max_y) / 2) - 1;
+    const int y = ((max_y - game->game_max_y) / 2) - 1;
 
     wattron(win, A_BOLD);
 

src/game_base.h

@@ -31,7 +31,7 @@
 #include "game_util.h"
 #include "windows.h"
 
-#define GAME_BORDER_COLOUR BAR_TEXT
+#define GAME_BORDER_COLOUR BAR_SOLID
 
 
 /* Max size of a default square game window */

src/game_chess.c

@@ -1626,11 +1626,11 @@ static void chess_print_status(WINDOW *win, ChessState *state)
     }
 
     int x_mid = (board->x_left_bound + (CHESS_TILE_SIZE_X * (CHESS_BOARD_COLUMNS / 2))) - (strlen(message) / 2);
-    mvwprintw(win, board->y_top_bound  - 2, x_mid, message);
+    mvwprintw(win, board->y_top_bound  - 2, x_mid, "%s", message);
 
     if (state->message_length > 0) {
         x_mid = (board->x_left_bound + (CHESS_TILE_SIZE_X * (CHESS_BOARD_COLUMNS / 2))) - (state->message_length / 2);
-        mvwprintw(win, board->y_bottom_bound + 2, x_mid, state->status_message);
+        mvwprintw(win, board->y_bottom_bound + 2, x_mid, "%s", state->status_message);
     }
 
     wattroff(win, A_BOLD);

src/help.c

@@ -174,7 +174,7 @@ static void help_draw_global(ToxWindow *self)
     wprintw(win, "  /decline <id>              : Decline friend request\n");
     wprintw(win, "  /requests                  : List pending friend requests\n");
     wprintw(win, "  /connect <ip> <port> <key> : Manually connect to a DHT node\n");
-    wprintw(win, "  /status <type> <msg>       : Set status with optional note\n");
+    wprintw(win, "  /status <type>             : Set status (Online, Busy, Away)\n");
     wprintw(win, "  /note <msg>                : Set a personal note\n");
     wprintw(win, "  /nick <nick>               : Set your nickname\n");
     wprintw(win, "  /nospam <value>            : Change part of your Tox ID to stop spam\n");

src/input.c

@@ -346,5 +346,9 @@ bool input_handle(ToxWindow *self, wint_t key, int x, int mx_x)
         }
     }
 
+    if (match) {
+        flag_interface_change(1);
+    }
+
     return match;
 }

src/line_info.c

@@ -444,6 +444,8 @@ int line_info_add(ToxWindow *self, bool show_timestamp, const char *name1, const
 
     hst->queue[hst->queue_size++] = new_line;
 
+    flag_interface_change(1);
+
     return new_line->id;
 }
 
@@ -454,6 +456,7 @@ static void line_info_check_queue(ToxWindow *self)
     struct line_info *line = line_info_ret_queue(hst);
 
     if (line == NULL) {
+        flag_interface_change(0);
         return;
     }
 
@@ -469,6 +472,8 @@ static void line_info_check_queue(ToxWindow *self)
     if (!self->scroll_pause) {
         line_info_reset_start(self, hst);
     }
+
+    flag_interface_change(1);
 }
 
 #define NOREAD_FLAG_TIMEOUT 5    /* seconds before a sent message with no read receipt is flagged as unread */
@@ -763,6 +768,8 @@ void line_info_set(ToxWindow *self, uint32_t id, char *msg)
 
         line = line->prev;
     }
+
+    flag_interface_change(1);
 }
 
 static void line_info_scroll_up(ToxWindow *self, struct history *hst)
@@ -771,6 +778,8 @@ static void line_info_scroll_up(ToxWindow *self, struct history *hst)
         hst->line_start = hst->line_start->prev;
         self->scroll_pause = true;
     }
+
+    flag_interface_change(1);
 }
 
 static void line_info_scroll_down(ToxWindow *self, struct history *hst)
@@ -786,6 +795,8 @@ static void line_info_scroll_down(ToxWindow *self, struct history *hst)
     } else {
         line_info_reset_start(self, hst);
     }
+
+    flag_interface_change(1);
 }
 
 static void line_info_page_up(ToxWindow *self, struct history *hst)
@@ -805,6 +816,8 @@ static void line_info_page_up(ToxWindow *self, struct history *hst)
     }
 
     self->scroll_pause = true;
+
+    flag_interface_change(1);
 }
 
 static void line_info_page_down(ToxWindow *self, struct history *hst)
@@ -834,6 +847,8 @@ static void line_info_page_down(ToxWindow *self, struct history *hst)
         hst->line_start = next;
         next = hst->line_start->next;
     }
+
+    flag_interface_change(1);
 }
 
 bool line_info_onKey(ToxWindow *self, wint_t key)
@@ -855,6 +870,10 @@ bool line_info_onKey(ToxWindow *self, wint_t key)
         match = false;
     }
 
+    if (match) {
+        flag_interface_change(1);
+    }
+
     return match;
 }
 
@@ -862,4 +881,6 @@ void line_info_clear(struct history *hst)
 {
     hst->line_start = hst->line_end;
     hst->start_id = hst->line_start->id;
+
+    flag_interface_change(1);
 }

src/toxic.c

@@ -383,6 +383,7 @@ static void init_term(void)
         init_pair(BLACK_BG, COLOR_BLACK, bar_bg_color);
         init_pair(PURPLE_BG, COLOR_MAGENTA, bar_bg_color);
         init_pair(BAR_TEXT, bar_fg_color, bar_bg_color);
+        init_pair(BAR_SOLID, bar_bg_color, bar_bg_color);
         init_pair(BAR_ACCENT, bar_accent_color, bar_bg_color);
         init_pair(BAR_NOTIFY, bar_notify_color, bar_bg_color);
         init_pair(STATUS_ONLINE, COLOR_GREEN, bar_bg_color);
@@ -1071,8 +1072,24 @@ static void do_toxic(Tox *m)
     pthread_mutex_unlock(&Winthread.lock);
 }
 
+/* How often we refresh windows that aren't focused */
 #define INACTIVE_WIN_REFRESH_RATE 10
 
+/* Set interface change flag. This should be called whenever the interface changes.
+ *
+ * `flag` should be a non-zero value if we need to redraw the window or 0 if we want to idle.
+ */
+void flag_interface_change(unsigned int flag)
+{
+    if (flag == 0 && timed_out(Winthread.flag_refresh_timeout, 1)) {
+        Winthread.flag_refresh = flag;
+    } else if (flag != 0) {
+        Winthread.flag_refresh = 1;
+    }
+
+    Winthread.flag_refresh_timeout = get_unix_time();
+}
+
 void *thread_winref(void *data)
 {
     Tox *m = (Tox *) data;
@@ -1081,8 +1098,8 @@ void *thread_winref(void *data)
     init_signal_catchers();
 
     while (true) {
-        draw_active_window(m);
         draw_count++;
+        draw_active_window(m);
 
         if (Winthread.flag_resize) {
             on_window_resize();
@@ -1203,21 +1220,23 @@ static void parse_args(int argc, char *argv[])
     };
 
     const char *opts_str = "4bdehLotuxvc:f:l:n:r:p:P:T:";
-    int opt, indexptr;
+    int opt = 0;
-    long int port = 0;
+    int indexptr = 0;
 
     while ((opt = getopt_long(argc, argv, opts_str, long_opts, &indexptr)) != -1) {
         switch (opt) {
-            case '4':
+            case '4': {
                 arg_opts.use_ipv4 = 1;
                 break;
+            }
 
-            case 'b':
+            case 'b': {
                 arg_opts.debug = 1;
                 queue_init_message("stderr enabled");
                 break;
+            }
 
-            case 'c':
+            case 'c': {
                 if (optarg == NULL) {
                     queue_init_message("Invalid argument for option: %d", opt);
                     break;
@@ -1230,17 +1249,20 @@ static void parse_args(int argc, char *argv[])
                 }
 
                 break;
+            }
 
-            case 'd':
+            case 'd': {
                 arg_opts.default_locale = 1;
                 queue_init_message("Using default POSIX locale");
                 break;
+            }
 
-            case 'e':
+            case 'e': {
                 arg_opts.encrypt_data = 1;
                 break;
+            }
 
-            case 'f':
+            case 'f': {
                 if (optarg == NULL) {
                     queue_init_message("Invalid argument for option: %d", opt);
                     break;
@@ -1278,8 +1300,9 @@ static void parse_args(int argc, char *argv[])
                 queue_init_message("Using '%s' data file", DATA_FILE);
 
                 break;
+            }
 
-            case 'l':
+            case 'l': {
                 if (optarg) {
                     arg_opts.logging = true;
 
@@ -1299,13 +1322,15 @@ static void parse_args(int argc, char *argv[])
                 }
 
                 break;
+            }
 
-            case 'L':
+            case 'L': {
                 arg_opts.disable_local_discovery = 1;
                 queue_init_message("Local discovery disabled");
                 break;
+            }
 
-            case 'n':
+            case 'n': {
                 if (optarg == NULL) {
                     queue_init_message("Invalid argument for option: %d", opt);
                     break;
@@ -1313,48 +1338,38 @@ static void parse_args(int argc, char *argv[])
 
                 snprintf(arg_opts.nodes_path, sizeof(arg_opts.nodes_path), "%s", optarg);
                 break;
+            }
 
-            case 'o':
+            case 'o': {
                 arg_opts.no_connect = 1;
                 queue_init_message("DHT disabled");
                 break;
+            }
 
-            case 'p':
+            case 'p': {
-                if (optarg == NULL) {
-                    queue_init_message("Invalid argument for option: %d", opt);
-                    break;
-                }
-
                 arg_opts.proxy_type = TOX_PROXY_TYPE_SOCKS5;
-                snprintf(arg_opts.proxy_address, sizeof(arg_opts.proxy_address), "%s", optarg);
+            }
 
-                if (++optind > argc || argv[optind - 1][0] == '-') {
+            // Intentional fallthrough
-                    exit_toxic_err("Proxy error", FATALERR_PROXY);
-                }
 
-                port = strtol(argv[optind - 1], NULL, 10);
+            case 'P': {
-
-                if (port <= 0 || port > MAX_PORT_RANGE) {
-                    exit_toxic_err("Proxy error", FATALERR_PROXY);
-                }
-
-                arg_opts.proxy_port = port;
-                break;
-
-            case 'P':
                 if (optarg == NULL) {
                     queue_init_message("Invalid argument for option: %d", opt);
+                    arg_opts.proxy_type = TOX_PROXY_TYPE_NONE;
                     break;
                 }
 
-                arg_opts.proxy_type = TOX_PROXY_TYPE_HTTP;
+                if (arg_opts.proxy_type == TOX_PROXY_TYPE_NONE) {
+                    arg_opts.proxy_type = TOX_PROXY_TYPE_HTTP;
+                }
+
                 snprintf(arg_opts.proxy_address, sizeof(arg_opts.proxy_address), "%s", optarg);
 
                 if (++optind > argc || argv[optind - 1][0] == '-') {
                     exit_toxic_err("Proxy error", FATALERR_PROXY);
                 }
 
-                port = strtol(argv[optind - 1], NULL, 10);
+                long int port = strtol(argv[optind - 1], NULL, 10);
 
                 if (port <= 0 || port > MAX_PORT_RANGE) {
                     exit_toxic_err("Proxy error", FATALERR_PROXY);
@@ -1362,8 +1377,9 @@ static void parse_args(int argc, char *argv[])
 
                 arg_opts.proxy_port = port;
                 break;
+            }
 
-            case 'r':
+            case 'r': {
                 if (optarg == NULL) {
                     queue_init_message("Invalid argument for option: %d", opt);
                     break;
@@ -1376,18 +1392,20 @@ static void parse_args(int argc, char *argv[])
                 }
 
                 break;
+            }
 
-            case 't':
+            case 't': {
                 arg_opts.force_tcp = 1;
                 break;
+            }
 
-            case 'T':
+            case 'T': {
                 if (optarg == NULL) {
                     queue_init_message("Invalid argument for option: %d", opt);
                     break;
                 }
 
-                port = strtol(optarg, NULL, 10);
+                long int port = strtol(optarg, NULL, 10);
 
                 if (port <= 0 || port > MAX_PORT_RANGE) {
                     port = MAX_PORT_RANGE;
@@ -1395,21 +1413,25 @@ static void parse_args(int argc, char *argv[])
 
                 arg_opts.tcp_port = port;
                 break;
+            }
 
-            case 'u':
+            case 'u': {
                 arg_opts.unencrypt_data = 1;
                 break;
+            }
 
-            case 'v':
+            case 'v': {
                 print_version();
                 exit(EXIT_SUCCESS);
+            }
 
             case 'h':
 
             // Intentional fallthrough
-            default:
+            default: {
                 print_usage();
                 exit(EXIT_SUCCESS);
+            }
         }
     }
 }
@@ -1464,6 +1486,8 @@ int main(int argc, char **argv)
     /* Make sure all written files are read/writeable only by the current user. */
     umask(S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
 
+    flag_interface_change(1);
+
     srand(time(NULL)); // We use rand() for trivial/non-security related things
 
     parse_args(argc, argv);

src/toxic.h

@@ -102,6 +102,8 @@ typedef enum _FATAL_ERRS {
 void lock_status(void);
 void unlock_status(void);
 
+void flag_interface_change(unsigned int flag);
+
 void exit_toxic_success(Tox *m);
 void exit_toxic_err(const char *errmsg, int errcode);
 

src/windows.c

@@ -77,6 +77,8 @@ void on_friend_connection_status(Tox *m, uint32_t friendnumber, Tox_Connection c
             windows[i]->onConnectionChange(windows[i], m, friendnumber, connection_status);
         }
     }
+
+    flag_interface_change(1);
 }
 
 void on_friend_typing(Tox *m, uint32_t friendnumber, bool is_typing, void *userdata)
@@ -92,6 +94,8 @@ void on_friend_typing(Tox *m, uint32_t friendnumber, bool is_typing, void *userd
             windows[i]->onTypingChange(windows[i], m, friendnumber, is_typing);
         }
     }
+
+    flag_interface_change(1);
 }
 
 void on_friend_message(Tox *m, uint32_t friendnumber, Tox_Message_Type type, const uint8_t *string, size_t length,
@@ -123,6 +127,8 @@ void on_friend_name(Tox *m, uint32_t friendnumber, const uint8_t *string, size_t
         }
     }
 
+    flag_interface_change(1);
+
     store_data(m, DATA_FILE);
 }
 
@@ -140,6 +146,8 @@ void on_friend_status_message(Tox *m, uint32_t friendnumber, const uint8_t *stri
             windows[i]->onStatusMessageChange(windows[i], friendnumber, msg, length);
         }
     }
+
+    flag_interface_change(1);
 }
 
 void on_friend_status(Tox *m, uint32_t friendnumber, Tox_User_Status status, void *userdata)
@@ -151,6 +159,8 @@ void on_friend_status(Tox *m, uint32_t friendnumber, Tox_User_Status status, voi
             windows[i]->onStatusChange(windows[i], m, friendnumber, status);
         }
     }
+
+    flag_interface_change(1);
 }
 
 void on_friend_added(Tox *m, uint32_t friendnumber, bool sort)
@@ -200,6 +210,8 @@ void on_conference_peer_list_changed(Tox *m, uint32_t conferencenumber, void *us
             windows[i]->onConferenceNameListChange(windows[i], m, conferencenumber);
         }
     }
+
+    flag_interface_change(1);
 }
 
 void on_conference_peer_name(Tox *m, uint32_t conferencenumber, uint32_t peernumber, const uint8_t *name,
@@ -423,11 +435,13 @@ void set_active_window_index(uint8_t index)
  */
 void set_next_window(int ch)
 {
+    uint8_t index = 0;
+
     if (ch == user_settings->key_next_tab) {
         for (uint8_t i = active_window_index + 1; i < MAX_WINDOWS_NUM; ++i) {
             if (windows[i] != NULL) {
-                set_active_window_index(i);
+                index = i;
-                return;
+                break;
             }
         }
     } else {
@@ -435,13 +449,15 @@ void set_next_window(int ch)
 
         for (uint8_t i = start; i > 0; --i) {
             if (windows[i] != NULL) {
-                set_active_window_index(i);
+                index = i;
-                return;
+                break;
             }
         }
     }
 
-    set_active_window_index(0);
+    set_active_window_index(index);
+
+    flag_interface_change(1);
 }
 
 /* Deletes window w and cleans up */
@@ -784,21 +800,33 @@ void draw_active_window(Tox *m)
     pthread_mutex_lock(&Winthread.lock);
     a->alert = WINDOW_ALERT_NONE;
     a->pending_messages = 0;
+    bool flag_refresh = Winthread.flag_refresh;
     pthread_mutex_unlock(&Winthread.lock);
 
-    touchwin(a->window);
+    if (flag_refresh || (a->is_call && timed_out(a->chatwin->infobox.lastupdate, 1))) {
-    a->onDraw(a, m);
+        touchwin(a->window);
-    wrefresh(a->window);
+        a->onDraw(a, m);
+        wrefresh(a->window);
+    }
 
 #ifdef GAMES
-
     if (a->type == WINDOW_TYPE_GAME) {
+        if (!flag_refresh) {  // we always want to be continously refreshing game windows
+            touchwin(a->window);
+            a->onDraw(a, m);
+            wrefresh(a->window);
+        }
+
         int ch = getch();
 
         if (ch == ERR) {
             return;
         }
 
+        pthread_mutex_lock(&Winthread.lock);
+        flag_interface_change(1);
+        pthread_mutex_unlock(&Winthread.lock);
+
         if (ch == user_settings->key_next_tab || ch == user_settings->key_prev_tab) {
             set_next_window(ch);
         }
@@ -817,6 +845,10 @@ void draw_active_window(Tox *m)
         return;
     }
 
+    pthread_mutex_lock(&Winthread.lock);
+    flag_interface_change(1);
+    pthread_mutex_unlock(&Winthread.lock);
+
     if (printable == 0 && (ch == user_settings->key_next_tab || ch == user_settings->key_prev_tab)) {
         set_next_window((int) ch);
         return;

src/windows.h

@@ -72,6 +72,7 @@ typedef enum {
     STATUS_BUSY,
     STATUS_AWAY,
     BAR_NOTIFY,
+    BAR_SOLID,
 } C_COLOURS;
 
 /* tab alert types: lower types take priority (this relies on the order of C_COLOURS) */
@@ -102,6 +103,8 @@ struct Winthread {
     pthread_mutex_t lock;
     volatile sig_atomic_t sig_exit_toxic;
     volatile sig_atomic_t flag_resize;
+    volatile sig_atomic_t flag_refresh;
+    volatile sig_atomic_t flag_refresh_timeout;
 };
 
 struct cqueue_thread {