sbar.c

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#include "config.h"
#include "mutt/lib.h"
#include "sbar.h"
#include "color/lib.h"
#include "curs_lib.h"
#include "mutt_curses.h"
#include "mutt_window.h"
 
struct SBarPrivateData
{
  char *display; 
};
 
static int sbar_recalc(struct MuttWindow *win)
{
  if (!win)
    return -1;
 
  win->actions |= WA_REPAINT;
  mutt_debug(LL_DEBUG5, "recalc done, request WA_REPAINT\n");
  return 0;
}
 
static int sbar_repaint(struct MuttWindow *win)
{
  struct SBarPrivateData *priv = win->wdata;
 
  mutt_window_move(win, 0, 0);
 
  mutt_curses_set_normal_backed_color_by_id(MT_COLOR_STATUS);
  mutt_window_move(win, 0, 0);
  mutt_paddstr(win, win->state.cols, priv->display);
  mutt_curses_set_color_by_id(MT_COLOR_NORMAL);
 
  mutt_debug(LL_DEBUG5, "repaint done\n");
  return 0;
}
 
static int sbar_color_observer(struct NotifyCallback *nc)
{
  if (nc->event_type != NT_COLOR)
    return 0;
  if (!nc->global_data)
    return -1;
 
  struct EventColor *ev_c = nc->event_data;
 
  // MT_COLOR_MAX is sent on `uncolor *`
  if ((ev_c->cid != MT_COLOR_STATUS) && (ev_c->cid != MT_COLOR_NORMAL) &&
      (ev_c->cid != MT_COLOR_MAX))
  {
    return 0;
  }
 
  struct MuttWindow *win_sbar = nc->global_data;
 
  win_sbar->actions |= WA_REPAINT;
  mutt_debug(LL_DEBUG5, "color done, request WA_REPAINT\n");
 
  return 0;
}
 
static int sbar_window_observer(struct NotifyCallback *nc)
{
  if (nc->event_type != NT_WINDOW)
    return 0;
  if (!nc->global_data || !nc->event_data)
    return -1;
 
  struct MuttWindow *win_sbar = nc->global_data;
  struct EventWindow *ev_w = nc->event_data;
  if (ev_w->win != win_sbar)
    return 0;
 
  if (nc->event_subtype == NT_WINDOW_STATE)
  {
    win_sbar->actions |= WA_REPAINT;
    mutt_debug(LL_DEBUG5, "window state done, request WA_REPAINT\n");
  }
  else if (nc->event_subtype == NT_WINDOW_DELETE)
  {
    mutt_color_observer_remove(sbar_color_observer, win_sbar);
    notify_observer_remove(win_sbar->notify, sbar_window_observer, win_sbar);
    mutt_debug(LL_DEBUG5, "window delete done\n");
  }
 
  return 0;
}
 
static void sbar_wdata_free(struct MuttWindow *win, void **ptr)
{
  if (!ptr || !*ptr)
    return;
 
  struct SBarPrivateData *priv = *ptr;
 
  FREE(&priv->display);
 
  FREE(ptr);
}
 
static struct SBarPrivateData *sbar_data_new(void)
{
  return mutt_mem_calloc(1, sizeof(struct SBarPrivateData));
}
 
struct MuttWindow *sbar_new(void)
{
  struct MuttWindow *win_sbar = mutt_window_new(WT_STATUS_BAR, MUTT_WIN_ORIENT_VERTICAL,
                                                MUTT_WIN_SIZE_FIXED,
                                                MUTT_WIN_SIZE_UNLIMITED, 1);
 
  win_sbar->wdata = sbar_data_new();
  win_sbar->wdata_free = sbar_wdata_free;
  win_sbar->recalc = sbar_recalc;
  win_sbar->repaint = sbar_repaint;
 
  mutt_color_observer_add(sbar_color_observer, win_sbar);
  notify_observer_add(win_sbar->notify, NT_WINDOW, sbar_window_observer, win_sbar);
 
  return win_sbar;
}
 
void sbar_set_title(struct MuttWindow *win, const char *title)
{
  if (!win || !win->wdata || (win->type != WT_STATUS_BAR))
    return;
 
  struct SBarPrivateData *priv = win->wdata;
  mutt_str_replace(&priv->display, title);
 
  win->actions |= WA_REPAINT;
}