add popup alert on friend delete

src/friendlist.c

@@ -44,6 +44,8 @@ static int num_friends = 0;
 ToxicFriend friends[MAX_FRIENDS_NUM];
 static int friendlist_index[MAX_FRIENDS_NUM] = {0};
 
+static PendingDel pendingdelete;
+
 #define S_WEIGHT 100
 
 static int index_name_cmp(const void *n1, const void *n2)
@@ -230,7 +232,7 @@ static void select_friend(ToxWindow *self, Tox *m, wint_t key)
     }
 }
 
-static void delete_friend(Tox *m, ToxWindow *self, int f_num, wint_t key)
+static void delete_friend(Tox *m, int f_num)
 {
     tox_del_friend(m, f_num);
     memset(&friends[f_num], 0, sizeof(ToxicFriend));
@@ -253,6 +255,48 @@ static void delete_friend(Tox *m, ToxWindow *self, int f_num, wint_t key)
     store_data(m, DATA_FILE);
 }
 
+/* activates delete friend popup */
+static void del_friend_activate(ToxWindow *self, Tox *m, int f_num)
+{
+    int x2, y2;
+    getmaxyx(self->window, y2, x2);
+    self->popup = newwin(3, 22 + TOXIC_MAX_NAME_LENGTH, 8, 8);
+
+    wattron(self->popup, A_BOLD);
+    box(self->popup, ACS_VLINE, ACS_HLINE);
+    wattroff(self->popup, A_BOLD);
+
+    pendingdelete.active = true;
+    pendingdelete.num = f_num;
+}
+
+/* deactivates delete friend popup and deletes friend if instructed */
+static void del_friend_deactivate(ToxWindow *self, Tox *m, wint_t key)
+{
+    if (key == 'y')
+        delete_friend(m, pendingdelete.num);
+ 
+    memset(&pendingdelete, 0, sizeof(PendingDel));
+    delwin(self->popup);
+    self->popup = NULL;
+    clear();
+    refresh();
+}
+
+static void friendlist_onPopup(ToxWindow *self, Tox *m)
+{
+    if (self->popup == NULL)
+        return;
+
+    wmove(self->popup, 1, 1);
+    wprintw(self->popup, "Delete contact ");
+    wattron(self->popup, A_BOLD);
+    wprintw(self->popup, "%s", friends[pendingdelete.num].name);
+    wattroff(self->popup, A_BOLD);
+    wprintw(self->popup, "? y/n");
+    wrefresh(self->popup);
+}
+
 static void friendlist_onKey(ToxWindow *self, Tox *m, wint_t key)
 {
     if (num_friends == 0)
@@ -260,6 +304,14 @@ static void friendlist_onKey(ToxWindow *self, Tox *m, wint_t key)
 
     int f = friendlist_index[num_selected];
 
+    /* lock screen and force decision on deletion popup */
+    if (pendingdelete.active) {
+        if (key == 'y' || key == 'n')
+            del_friend_deactivate(self, m, key);
+
+        return;
+    }
+
     if (key == '\n') {
         /* Jump to chat window if already open */
         if (friends[f].chatwin != -1) {
@@ -276,7 +328,7 @@ static void friendlist_onKey(ToxWindow *self, Tox *m, wint_t key)
             alert_window(prompt, WINDOW_ALERT_1, true);
         }
     } else if (key == KEY_DC) {
-        delete_friend(m, self, f, key);
+        del_friend_activate(self, m, f);
     } else {
         select_friend(self, m, key);
     }
@@ -306,7 +358,7 @@ static void friendlist_onDraw(ToxWindow *self, Tox *m)
     wattroff(self->window, COLOR_PAIR(CYAN));
 
     wattron(self->window, A_BOLD);
-    wprintw(self->window, " Friends: %d/%d \n\n", tox_get_num_online_friends(m), num_friends);
+    wprintw(self->window, " Online: %d/%d \n\n", tox_get_num_online_friends(m), num_friends);
     wattroff(self->window, A_BOLD);
 
     if ((y2 - FLIST_OFST) <= 0)    /* don't allow division by zero */
@@ -421,6 +473,7 @@ ToxWindow new_friendlist(void)
     ret.active = true;
 
     ret.onKey = &friendlist_onKey;
+    ret.onPopup = &friendlist_onPopup;
     ret.onDraw = &friendlist_onDraw;
     ret.onInit = &friendlist_onInit;
     ret.onFriendAdded = &friendlist_onFriendAdded;

src/friendlist.h

@@ -42,6 +42,11 @@ typedef struct {
     struct FileReceiver file_receiver;
 } ToxicFriend;
 
+typedef struct {
+    int num;
+    bool active;
+} PendingDel;
+
 ToxWindow new_friendlist(void);
 void disable_chatwin(int f_num);
 int get_friendnum(uint8_t *name);

src/misc_tools.c

@@ -105,7 +105,7 @@ int wcs_to_mbs_buf(uint8_t *buf, const wchar_t *string, size_t n)
     return len;
 }
 
-/* convert wide characters to multibyte string: string returned must be free'd */
+/* convert wide characters to multibyte string: string returned must be freed */
 uint8_t *wcs_to_mbs(wchar_t *string)
 {
     uint8_t *ret = NULL;

src/toxic_windows.h

@@ -88,6 +88,7 @@ typedef struct ChatContext ChatContext;
 struct ToxWindow {
     void(*onKey)(ToxWindow *, Tox *, wint_t);
     void(*onDraw)(ToxWindow *, Tox *);
+    void(*onPopup)(ToxWindow *, Tox*);
     void(*onInit)(ToxWindow *, Tox *);
     void(*onFriendRequest)(ToxWindow *, uint8_t *, uint8_t *, uint16_t);
     void(*onFriendAdded)(ToxWindow *, Tox *, int, bool);
@@ -124,6 +125,7 @@ struct ToxWindow {
     PromptBuf *promptbuf;
     StatusBar *stb;
 
+    WINDOW *popup;
     WINDOW *window;
 };
 

src/windows.c

@@ -387,8 +387,14 @@ void draw_active_window(Tox *m)
     wresize(a->window, LINES - 2, COLS);
 #endif
 
-    a->onDraw(a, m);
-    wrefresh(a->window);
+    /* ignore main window if popup is active */
+    if (a->popup) {
+        a->onPopup(a, m);
+        wrefresh(a->popup);
+    } else {
+        a->onDraw(a, m);
+        wrefresh(a->window);
+    }
 
     /* Handle input */
 #ifdef HAVE_WIDECHAR
@@ -397,7 +403,7 @@ void draw_active_window(Tox *m)
     ch = getch();
 #endif
 
-    if (ch == T_KEY_NEXT || ch == T_KEY_PREV)
+    if ((ch == T_KEY_NEXT || ch == T_KEY_PREV) && !a->popup)   /* lock window if active popup */
         set_next_window((int) ch);
     else if (ch != ERR)
         a->onKey(a, m, ch);