toxic/windows.c

#include "friendlist.h"
#include "prompt.h"
#include "windows.h"

/* Holds status of chat windows */
char WINDOW_STATUS[MAX_WINDOW_SLOTS];

static int w_num;
static ToxWindow windows[MAX_WINDOW_SLOTS];
static Messenger *m;
int active_window;

static ToxWindow* prompt;

/* CALLBACKS START */
void on_request(uint8_t *public_key, uint8_t *data, uint16_t length, void* userdata)
{
  int n = add_req(public_key);
  wprintw(prompt->window, "\nFriend request from:\n");

  int i;
  for (i = 0; i < KEY_SIZE_BYTES; ++i) {
    wprintw(prompt->window, "%02x", public_key[i] & 0xff);
  }

  wprintw(prompt->window, "\nWith the message: %s\n", data);
  wprintw(prompt->window, "\nUse \"accept %d\" to accept it.\n", n);

  for (i = 0; i < MAX_WINDOW_SLOTS; ++i) {
    if (windows[i].onFriendRequest != NULL)
      windows[i].onFriendRequest(&windows[i], public_key, data, length);
  }
}

void on_message(Messenger *m, int friendnumber, uint8_t *string, uint16_t length, void* userdata)
{
  int i;
  for (i = 0; i < MAX_WINDOW_SLOTS; ++i) {
    if (windows[i].onMessage != NULL)
      windows[i].onMessage(&windows[i], m, friendnumber, string, length);
  }
}

void on_action(Messenger *m, int friendnumber, uint8_t *string, uint16_t length, void* userdata)
{
  int i;
  for (i = 0; i < MAX_WINDOW_SLOTS; ++i) {
    if (windows[i].onAction != NULL)
      windows[i].onAction(&windows[i], m, friendnumber, string, length);
  }
}

void on_nickchange(Messenger *m, int friendnumber, uint8_t *string, uint16_t length, void* userdata)
{
  wprintw(prompt->window, "\n(nickchange) %d: %s\n", friendnumber, string);
  int i;
  for (i = 0; i < MAX_WINDOW_SLOTS; ++i) {
    if (windows[i].onNickChange != NULL)
      windows[i].onNickChange(&windows[i], friendnumber, string, length);
  }
}

void on_statuschange(Messenger *m, int friendnumber, uint8_t *string, uint16_t length, void* userdata)
{
  wprintw(prompt->window, "\n(statuschange) %d: %s\n", friendnumber, string);
  int i;
  for (i=0; i<MAX_WINDOW_SLOTS; ++i) {
    if (windows[i].onStatusChange != NULL)
      windows[i].onStatusChange(&windows[i], friendnumber, string, length);
  }
}

void on_friendadded(Messenger *m, int friendnumber)
{
  friendlist_onFriendAdded(m, friendnumber);
}
/* CALLBACKS END */

int add_window(Messenger *m, ToxWindow w, int n)
{
  if (w_num >= TOXWINDOWS_MAX_NUM)
    return -1;

  if (LINES < 2)
    return -1;

  w.window = newwin(LINES - 2, COLS, 0, 0);
  if (w.window == NULL)
    return -1;

  windows[n] = w;
  w.onInit(&w, m);
  w_num++;
  active_window = n;
  return n;
}

/* Deletes window w and cleans up */
void del_window(ToxWindow *w, int f_num)
{
  active_window = 0; // Go to prompt screen
  delwin(w->window);
  int i;
  for (i = N_DEFAULT_WINS; i < MAX_WINDOW_SLOTS; ++i) {
    if (WINDOW_STATUS[i] == f_num) {
      WINDOW_STATUS[i] = -1;
      disable_chatwin(f_num);
      break;
    }
  }
  clear();
  refresh();
}

/* Shows next window when tab or back-tab is pressed */
void set_active_window(int ch)
{
  int f_inf = 0;
  int max = MAX_WINDOW_SLOTS-1;
  if (ch == '\t') {
    int i = (active_window + 1) % max;
    while (true) {
      if (WINDOW_STATUS[i] != -1) {
        active_window = i;
        return;
      }
      i = (i  + 1) % max;
      if (f_inf++ > max) {    // infinite loop check
        endwin();
        exit(2);
      }
    }
  }else {
    int i = active_window - 1;
    if (i < 0) i = max;
    while (true) {
      if (WINDOW_STATUS[i] != -1) {
        active_window = i;
        return;
      }
      if (--i < 0) i = max;
      if (f_inf++ > max) {
        endwin();
        exit(2);
      }
    }
  }
}

void init_window_status()
{
  /* Default window values decrement from -2 */
  int i;
  for (i = 0; i < N_DEFAULT_WINS; ++i)
    WINDOW_STATUS[i] = -(i+2);

  int j;
  for (j = N_DEFAULT_WINS; j < MAX_WINDOW_SLOTS; j++)
    WINDOW_STATUS[j] = -1;
}

ToxWindow *init_windows()
{
  w_num = 0;
  int n_prompt = 0;
  int n_friendslist = 1;
  if (add_window(m, new_prompt(on_friendadded), n_prompt) == -1
                        || add_window(m, new_friendlist(WINDOW_STATUS), n_friendslist) == -1) {
    fprintf(stderr, "add_window() failed.\n");
    endwin();
    exit(1);
  }
  active_window = n_prompt;
  prompt = &windows[n_prompt];
  return prompt;
}

static void draw_bar()
{
  static int odd = 0;
  int blinkrate = 30;

  attron(COLOR_PAIR(4));
  mvhline(LINES - 2, 0, '_', COLS);
  attroff(COLOR_PAIR(4));

  move(LINES - 1, 0);

  attron(COLOR_PAIR(4) | A_BOLD);
  printw(" TOXIC " TOXICVER "|");
  attroff(COLOR_PAIR(4) | A_BOLD);

  int i;
  for (i = 0; i < (MAX_WINDOW_SLOTS); ++i) {
    if (WINDOW_STATUS[i] != -1) {
      if (i == active_window)
        attron(A_BOLD);

      odd = (odd+1) % blinkrate;
      if (windows[i].blink && (odd < (blinkrate/2)))
        attron(COLOR_PAIR(3));

      printw(" %s", windows[i].title);
      if (windows[i].blink && (odd < (blinkrate/2)))
        attroff(COLOR_PAIR(3));

      if (i == active_window) {
        attroff(A_BOLD);
      }
    }
  }
  refresh();
}

void prepare_window(WINDOW *w)
{
  mvwin(w, 0, 0);
  wresize(w, LINES-2, COLS);
}

void draw_active_window(Messenger *m)
{

  ToxWindow *a = &windows[active_window];
  prepare_window(a->window);
  a->blink = false;
  draw_bar();
  a->onDraw(a);

  /* Handle input */
  int ch = getch();
  if (ch == '\t' || ch == KEY_BTAB)
    set_active_window(ch);
  else if (ch != ERR)
    a->onKey(a, m, ch);
}