ibar.c

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#include "config.h"
#include <stdbool.h>
#include "mutt/lib.h"
#include "config/lib.h"
#include "core/lib.h"
#include "gui/lib.h"
#include "lib.h"
#include "color/lib.h"
#include "expando/lib.h"
#include "private_data.h"
#include "shared_data.h"
#include "status.h"

struct IBarPrivateData
{
  struct IndexSharedData *shared; 
  struct IndexPrivateData *priv;  
  char *status_format;            
  char *ts_status_format;         
  char *ts_icon_format;           
};

static int ibar_recalc(struct MuttWindow *win)
{
  struct Buffer *buf = buf_pool_get();
 
  struct IBarPrivateData *ibar_data = win->wdata;
  struct IndexSharedData *shared = ibar_data->shared;
  struct IndexPrivateData *priv = ibar_data->priv;
  struct GuiModuleData *mod_data = neomutt_get_module_data(NeoMutt, MODULE_ID_GUI);
 
  const struct Expando *c_status_format = cs_subset_expando(shared->sub, "status_format");
  menu_status_line(buf, shared, priv->menu, win->state.cols, c_status_format);
 
  if (!mutt_str_equal(buf_string(buf), ibar_data->status_format))
  {
    mutt_str_replace(&ibar_data->status_format, buf_string(buf));
    win->actions |= WA_REPAINT;
    mutt_debug(LL_DEBUG5, "recalc done, request WA_REPAINT\n");
  }
 
  const bool c_ts_enabled = cs_subset_bool(shared->sub, "ts_enabled");
  if (c_ts_enabled && mod_data && mod_data->ts_supported)
  {
    buf_reset(buf);
    const struct Expando *c_ts_status_format = cs_subset_expando(shared->sub, "ts_status_format");
    menu_status_line(buf, shared, priv->menu, -1, c_ts_status_format);
    if (!mutt_str_equal(buf_string(buf), ibar_data->ts_status_format))
    {
      mutt_str_replace(&ibar_data->ts_status_format, buf_string(buf));
      win->actions |= WA_REPAINT;
      mutt_debug(LL_DEBUG5, "recalc done, request WA_REPAINT\n");
    }
 
    buf_reset(buf);
    const struct Expando *c_ts_icon_format = cs_subset_expando(shared->sub, "ts_icon_format");
    menu_status_line(buf, shared, priv->menu, -1, c_ts_icon_format);
    if (!mutt_str_equal(buf_string(buf), ibar_data->ts_icon_format))
    {
      mutt_str_replace(&ibar_data->ts_icon_format, buf_string(buf));
      win->actions |= WA_REPAINT;
      mutt_debug(LL_DEBUG5, "recalc done, request WA_REPAINT\n");
    }
  }
 
  buf_pool_release(&buf);
  return 0;
}

static int ibar_repaint(struct MuttWindow *win)
{
  struct IBarPrivateData *ibar_data = win->wdata;
  struct IndexSharedData *shared = ibar_data->shared;
 
  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, ibar_data->status_format,
                       mutt_str_len(ibar_data->status_format));
  mutt_curses_set_color_by_id(MT_COLOR_NORMAL);
 
  const bool c_ts_enabled = cs_subset_bool(shared->sub, "ts_enabled");
  struct GuiModuleData *mod_data = neomutt_get_module_data(NeoMutt, MODULE_ID_GUI);
  if (c_ts_enabled && mod_data && mod_data->ts_supported)
  {
    mutt_ts_status(ibar_data->ts_status_format);
    mutt_ts_icon(ibar_data->ts_icon_format);
  }
 
  mutt_debug(LL_DEBUG5, "repaint done\n");
  return 0;
}

static int ibar_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_ibar = nc->global_data;
  win_ibar->actions |= WA_REPAINT;
  mutt_debug(LL_DEBUG5, "color done, request WA_REPAINT\n");
 
  return 0;
}

static int ibar_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 (!ev_c->name)
    return 0;
  if ((ev_c->name[0] != 's') && (ev_c->name[0] != 't'))
    return 0;
 
  if (!mutt_str_equal(ev_c->name, "status_format") &&
      !mutt_str_equal(ev_c->name, "ts_enabled") &&
      !mutt_str_equal(ev_c->name, "ts_icon_format") &&
      !mutt_str_equal(ev_c->name, "ts_status_format"))
  {
    return 0;
  }
 
  struct MuttWindow *win_ibar = nc->global_data;
  win_ibar->actions |= WA_RECALC;
  mutt_debug(LL_DEBUG5, "config done, request WA_RECALC\n");
 
  return 0;
}

static int ibar_index_observer(struct NotifyCallback *nc)
{
  if (!nc->global_data)
    return -1;
 
  struct MuttWindow *win_ibar = nc->global_data;
  win_ibar->actions |= WA_RECALC;
  mutt_debug(LL_DEBUG5, "index done, request WA_RECALC\n");
 
  return 0;
}

static int ibar_menu_observer(struct NotifyCallback *nc)
{
  if (nc->event_type != NT_MENU)
    return 0;
  if (!nc->global_data)
    return -1;
 
  struct MuttWindow *win_ibar = nc->global_data;
  win_ibar->actions |= WA_RECALC;
  mutt_debug(LL_DEBUG5, "menu done, request WA_RECALC\n");
 
  return 0;
}

static int ibar_window_observer(struct NotifyCallback *nc)
{
  if (nc->event_type != NT_WINDOW)
    return 0;
  if (!nc->global_data)
    return -1;
 
  struct MuttWindow *win_ibar = nc->global_data;
  struct EventWindow *ev_w = nc->event_data;
  if (ev_w->win != win_ibar)
    return 0;
 
  if (nc->event_subtype == NT_WINDOW_STATE)
  {
    win_ibar->actions |= WA_REPAINT;
    mutt_debug(LL_DEBUG5, "window state done, request WA_REPAINT\n");
  }
  else if (nc->event_subtype == NT_WINDOW_DELETE)
  {
    struct MuttWindow *dlg = window_find_parent(win_ibar, WT_DLG_INDEX);
    if (!dlg)
      return 0;
    struct IndexSharedData *shared = dlg->wdata;
 
    mutt_color_observer_remove(ibar_color_observer, win_ibar);
    notify_observer_remove(NeoMutt->sub->notify, ibar_config_observer, win_ibar);
    notify_observer_remove(shared->notify, ibar_index_observer, win_ibar);
    notify_observer_remove(win_ibar->parent->notify, ibar_menu_observer, win_ibar);
    notify_observer_remove(win_ibar->notify, ibar_window_observer, win_ibar);
 
    mutt_debug(LL_DEBUG5, "window delete done\n");
  }
 
  return 0;
}

static void ibar_data_free(struct MuttWindow *win, void **ptr)
{
  if (!ptr || !*ptr)
    return;
 
  struct IBarPrivateData *ibar_data = *ptr;
 
  FREE(&ibar_data->status_format);
  FREE(&ibar_data->ts_status_format);
  FREE(&ibar_data->ts_icon_format);
 
  FREE(ptr);
}

static struct IBarPrivateData *ibar_data_new(struct IndexSharedData *shared,
                                             struct IndexPrivateData *priv)
{
  struct IBarPrivateData *ibar_data = MUTT_MEM_CALLOC(1, struct IBarPrivateData);
 
  ibar_data->shared = shared;
  ibar_data->priv = priv;
 
  return ibar_data;
}

struct MuttWindow *ibar_new(struct MuttWindow *parent, struct IndexSharedData *shared,
                            struct IndexPrivateData *priv)
{
  struct MuttWindow *win_ibar = mutt_window_new(WT_STATUS_BAR, MUTT_WIN_ORIENT_VERTICAL,
                                                MUTT_WIN_SIZE_FIXED,
                                                MUTT_WIN_SIZE_UNLIMITED, 1);
 
  win_ibar->wdata = ibar_data_new(shared, priv);
  win_ibar->wdata_free = ibar_data_free;
  win_ibar->recalc = ibar_recalc;
  win_ibar->repaint = ibar_repaint;
 
  mutt_color_observer_add(ibar_color_observer, win_ibar);
  notify_observer_add(NeoMutt->sub->notify, NT_CONFIG, ibar_config_observer, win_ibar);
  notify_observer_add(shared->notify, NT_ALL, ibar_index_observer, win_ibar);
  notify_observer_add(parent->notify, NT_MENU, ibar_menu_observer, win_ibar);
  notify_observer_add(win_ibar->notify, NT_WINDOW, ibar_window_observer, win_ibar);
 
  return win_ibar;
}