cbar.c

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#include "config.h"
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include "private.h"
#include "mutt/lib.h"
#include "config/lib.h"
#include "email/lib.h"
#include "core/lib.h"
#include "gui/lib.h"
#include "cbar.h"
#include "color/lib.h"
#include "index/lib.h"
#include "menu/lib.h"
#include "attach_data.h"
#include "cbar_data.h"
#include "format_flags.h"
#include "globals.h" // IWYU pragma: keep
#include "muttlib.h"
#include "shared_data.h"
 
int num_attachments(struct ComposeAttachData *adata)
{
  if (!adata || !adata->menu)
    return 0;
  return adata->menu->max;
}
 
static const char *compose_format_str(char *buf, size_t buflen, size_t col, int cols,
                                      char op, const char *src, const char *prec,
                                      const char *if_str, const char *else_str,
                                      intptr_t data, MuttFormatFlags flags)
{
  char fmt[128], tmp[128];
  bool optional = (flags & MUTT_FORMAT_OPTIONAL);
  struct ComposeSharedData *shared = (struct ComposeSharedData *) data;
 
  *buf = '\0';
  switch (op)
  {
    case 'a': /* total number of attachments */
      snprintf(fmt, sizeof(fmt), "%%%sd", prec);
      snprintf(buf, buflen, fmt, num_attachments(shared->adata));
      break;
 
    case 'h': /* hostname */
      snprintf(fmt, sizeof(fmt), "%%%ss", prec);
      snprintf(buf, buflen, fmt, NONULL(ShortHostname));
      break;
 
    case 'l': /* approx length of current message in bytes */
      snprintf(fmt, sizeof(fmt), "%%%ss", prec);
      mutt_str_pretty_size(tmp, sizeof(tmp),
                           cum_attachs_size(shared->sub, shared->adata));
      snprintf(buf, buflen, fmt, tmp);
      break;
 
    case 'v':
      snprintf(buf, buflen, "%s", mutt_make_version());
      break;
 
    case 0:
      *buf = '\0';
      return src;
 
    default:
      snprintf(buf, buflen, "%%%s%c", prec, op);
      break;
  }
 
  if (optional)
  {
    mutt_expando_format(buf, buflen, col, cols, if_str, compose_format_str, data, flags);
  }
  // This format function doesn't have any optional expandos,
  // so there's no `else if (flags & MUTT_FORMAT_OPTIONAL)` clause
 
  return src;
}
 
static int cbar_recalc(struct MuttWindow *win)
{
  char buf[1024] = { 0 };
  struct ComposeSharedData *shared = win->parent->wdata;
 
  const char *const c_compose_format = cs_subset_string(shared->sub, "compose_format");
  mutt_expando_format(buf, sizeof(buf), 0, win->state.cols, NONULL(c_compose_format),
                      compose_format_str, (intptr_t) shared, MUTT_FORMAT_NO_FLAGS);
 
  struct ComposeBarData *cbar_data = win->wdata;
  if (!mutt_str_equal(buf, cbar_data->compose_format))
  {
    mutt_str_replace(&cbar_data->compose_format, buf);
    win->actions |= WA_REPAINT;
    mutt_debug(LL_DEBUG5, "recalc done, request WA_REPAINT\n");
  }
 
  return 0;
}
 
static int cbar_repaint(struct MuttWindow *win)
{
  struct ComposeBarData *cbar_data = win->wdata;
 
  mutt_window_move(win, 0, 0);
  mutt_curses_set_normal_backed_color_by_id(MT_COLOR_STATUS);
  mutt_window_clrtoeol(win);
 
  mutt_window_move(win, 0, 0);
  mutt_draw_statusline(win, win->state.cols, cbar_data->compose_format,
                       mutt_str_len(cbar_data->compose_format));
  mutt_curses_set_color_by_id(MT_COLOR_NORMAL);
  mutt_debug(LL_DEBUG5, "repaint done\n");
 
  return 0;
}
 
int cbar_color_observer(struct NotifyCallback *nc)
{
  if (nc->event_type != NT_COLOR)
    return 0;
  if (!nc->global_data || !nc->event_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_cbar = nc->global_data;
  win_cbar->actions |= WA_REPAINT;
  mutt_debug(LL_DEBUG5, "color done, request WA_REPAINT\n");
 
  return 0;
}
 
int cbar_config_observer(struct NotifyCallback *nc)
{
  if (nc->event_type != NT_CONFIG)
    return 0;
  if (!nc->global_data || !nc->event_data)
    return -1;
 
  struct EventConfig *ev_c = nc->event_data;
  if (!mutt_str_equal(ev_c->name, "compose_format"))
    return 0;
 
  struct MuttWindow *win_cbar = nc->global_data;
  win_cbar->actions |= WA_RECALC;
  mutt_debug(LL_DEBUG5, "config done, request WA_RECALC\n");
 
  return 0;
}
 
static int cbar_email_observer(struct NotifyCallback *nc)
{
  if (nc->event_type != NT_EMAIL)
    return 0;
  if (!nc->global_data || !nc->event_data)
    return -1;
 
  struct MuttWindow *win_cbar = nc->global_data;
  win_cbar->actions |= WA_RECALC;
  mutt_debug(LL_DEBUG5, "compose done, request WA_RECALC\n");
 
  return 0;
}
 
static int cbar_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_cbar = nc->global_data;
  struct EventWindow *ev_w = nc->event_data;
  if (ev_w->win != win_cbar)
    return 0;
 
  if (nc->event_subtype == NT_WINDOW_STATE)
  {
    win_cbar->actions |= WA_RECALC;
    mutt_debug(LL_DEBUG5, "window state done, request WA_RECALC\n");
  }
  else if (nc->event_subtype == NT_WINDOW_DELETE)
  {
    struct MuttWindow *dlg = win_cbar->parent;
    struct ComposeSharedData *shared = dlg->wdata;
 
    notify_observer_remove(NeoMutt->notify, cbar_color_observer, win_cbar);
    notify_observer_remove(NeoMutt->notify, cbar_config_observer, win_cbar);
    notify_observer_remove(shared->email->notify, cbar_email_observer, win_cbar);
    notify_observer_remove(win_cbar->notify, cbar_window_observer, win_cbar);
 
    mutt_debug(LL_DEBUG5, "window delete done\n");
  }
 
  return 0;
}
 
struct MuttWindow *cbar_new(struct ComposeSharedData *shared)
{
  struct MuttWindow *win_cbar = mutt_window_new(WT_STATUS_BAR, MUTT_WIN_ORIENT_VERTICAL,
                                                MUTT_WIN_SIZE_FIXED,
                                                MUTT_WIN_SIZE_UNLIMITED, 1);
 
  win_cbar->wdata = cbar_data_new();
  win_cbar->wdata_free = cbar_data_free;
  win_cbar->recalc = cbar_recalc;
  win_cbar->repaint = cbar_repaint;
 
  notify_observer_add(NeoMutt->notify, NT_COLOR, cbar_color_observer, win_cbar);
  notify_observer_add(NeoMutt->notify, NT_CONFIG, cbar_config_observer, win_cbar);
  notify_observer_add(shared->email->notify, NT_EMAIL, cbar_email_observer, win_cbar);
  notify_observer_add(win_cbar->notify, NT_WINDOW, cbar_window_observer, win_cbar);
 
  return win_cbar;
}