dlg_postpone.c

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#include "config.h"
#include <stdbool.h>
#include <stdio.h>
#include "mutt/lib.h"
#include "config/lib.h"
#include "email/lib.h"
#include "core/lib.h"
#include "gui/lib.h"
#include "mutt.h"
#include "expando/lib.h"
#include "index/lib.h"
#include "key/lib.h"
#include "menu/lib.h"
#include "pattern/lib.h"
#include "functions.h"
#include "module_data.h"
#include "mutt_logging.h"

static const struct Mapping PostponeHelp[] = {
  // clang-format off
  { N_("Exit"),  OP_EXIT },
  { N_("Del"),   OP_DELETE },
  { N_("Undel"), OP_UNDELETE },
  { N_("Tag"),   OP_TAG },
  { N_("Help"),  OP_HELP },
  { NULL, 0 },
  // clang-format on
};

static int post_make_entry(struct Menu *menu, int line, int max_cols, struct Buffer *buf)
{
  struct PostponeData *pd = menu->mdata;
  struct MailboxView *mv = pd->mailbox_view;
  struct Mailbox *m = mv->mailbox;
 
  const bool c_arrow_cursor = cs_subset_bool(menu->sub, "arrow_cursor");
  if (c_arrow_cursor)
  {
    const char *const c_arrow_string = cs_subset_string(menu->sub, "arrow_string");
    if (max_cols > 0)
      max_cols -= (mutt_strwidth(c_arrow_string) + 1);
  }
 
  const struct Expando *c_index_format = cs_subset_expando(NeoMutt->sub, "index_format");
  return mutt_make_string(buf, max_cols, c_index_format, m, -1, m->emails[line],
                          MUTT_FORMAT_INDEX | MUTT_FORMAT_ARROWCURSOR, NULL);
}

static int postpone_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, "index_format") && !mutt_str_equal(ev_c->name, "sort"))
    return 0;
 
  struct Menu *menu = nc->global_data;
  menu_queue_redraw(menu, MENU_REDRAW_FULL);
  mutt_debug(LL_DEBUG5, "config done, request WA_RECALC, MENU_REDRAW_FULL\n");
 
  return 0;
}

static int postpone_window_observer(struct NotifyCallback *nc)
{
  if (nc->event_type != NT_WINDOW)
    return 0;
  if (!nc->global_data || !nc->event_data)
    return -1;
  if (nc->event_subtype != NT_WINDOW_DELETE)
    return 0;
 
  struct MuttWindow *win_menu = nc->global_data;
  struct EventWindow *ev_w = nc->event_data;
  if (ev_w->win != win_menu)
    return 0;
 
  struct Menu *menu = win_menu->wdata;
 
  notify_observer_remove(NeoMutt->sub->notify, postpone_config_observer, menu);
  notify_observer_remove(win_menu->notify, postpone_window_observer, win_menu);
 
  mutt_debug(LL_DEBUG5, "window delete done\n");
  return 0;
}

static int post_tag(struct Menu *menu, int sel, int act)
{
  struct PostponeData *pd = menu->mdata;
  struct MailboxView *mv = pd->mailbox_view;
  struct Mailbox *m = mv->mailbox;
 
  const bool c_auto_tag = cs_subset_bool(NeoMutt->sub, "auto_tag");
  if (menu->tag_prefix && !c_auto_tag)
  {
    for (size_t i = 0; i < m->msg_count; i++)
    {
      struct Email *e = m->emails[i];
      if (!e)
        break;
      mutt_set_flag(m, e, MUTT_TAG, false, true);
    }
    menu_queue_redraw(menu, MENU_REDRAW_INDEX);
    return FR_SUCCESS;
  }
 
  int index = menu_get_index(menu);
  struct Email *e = m->emails[index];
  if (!e)
    return FR_NO_ACTION;
 
  mutt_set_flag(m, e, MUTT_TAG, !e->tagged, true);
 
  return FR_SUCCESS;
}

static const struct AttrColor *post_color(struct Menu *menu, int line)
{
  struct PostponeData *pd = menu->mdata;
  struct MailboxView *mv = pd->mailbox_view;
  if (!mv || (line < 0))
    return NULL;
 
  struct Mailbox *m = mv->mailbox;
  if (!m)
    return NULL;
 
  struct Email *e = mutt_get_virt_email(m, line);
  if (!e)
    return NULL;
 
  if (e->attr_color)
    return e->attr_color;
 
  email_set_color(m, e);
  return e->attr_color;
}

struct Email *dlg_postpone(struct Mailbox *m)
{
  struct PostponeModuleData *mod_data = neomutt_get_module_data(NeoMutt, MODULE_ID_POSTPONE);
  ASSERT(mod_data);
 
  struct SimpleDialogWindows sdw = simple_dialog_new(mod_data->menu_postpone,
                                                     WT_DLG_POSTPONE, PostponeHelp);
  // Required to number the emails
  struct MailboxView *mv = mview_new(m, NeoMutt->notify);
 
  struct Menu *menu = sdw.menu;
  menu->make_entry = post_make_entry;
  menu->color = post_color;
  menu->tag = post_tag;
  menu->max = m->msg_count;
 
  struct PostponeData pd = { mv, menu, NULL, false, search_state_new() };
  menu->mdata = &pd;
  menu->mdata_free = NULL; // Menu doesn't own the data
 
  // NT_COLOR is handled by the SimpleDialog
  notify_observer_add(NeoMutt->sub->notify, NT_CONFIG, postpone_config_observer, menu);
  notify_observer_add(menu->win->notify, NT_WINDOW, postpone_window_observer, menu->win);
 
  sbar_set_title(sdw.sbar, _("Postponed Messages"));
 
  /* The postponed mailbox is setup to have sorting disabled, but the global
   * `$sort` variable may indicate something different.   Sorting has to be
   * disabled while the postpone menu is being displayed. */
  const enum EmailSortType c_sort = cs_subset_sort(NeoMutt->sub, "sort");
  cs_subset_str_native_set(NeoMutt->sub, "sort", EMAIL_SORT_UNSORTED, NULL);
 
  struct MuttWindow *old_focus = window_set_focus(menu->win);
  // ---------------------------------------------------------------------------
  // Event Loop
  int op = OP_NULL;
  struct KeyEvent event = { 0, OP_NULL };
  do
  {
    menu_tagging_dispatcher(menu->win, &event);
    window_redraw(NULL);
 
    event = km_dokey(mod_data->menu_postpone, GETCH_NONE);
    op = event.op;
    mutt_debug(LL_DEBUG1, "Got op %s (%d)\n", opcodes_get_name(op), op);
    if (op < 0)
      continue;
    if (op == OP_NULL)
    {
      km_error_key(mod_data->menu_postpone);
      continue;
    }
    mutt_clear_error();
 
    int rc = postpone_function_dispatcher(sdw.dlg, &event);
 
    if (rc == FR_UNKNOWN)
      rc = menu_function_dispatcher(menu->win, &event);
    if (rc == FR_UNKNOWN)
      rc = global_function_dispatcher(menu->win, &event);
  } while (!pd.done);
  // ---------------------------------------------------------------------------
 
  mview_free(&mv);
  cs_subset_str_native_set(NeoMutt->sub, "sort", c_sort, NULL);
  search_state_free(&pd.search_state);
  window_set_focus(old_focus);
  simple_dialog_free(&sdw.dlg);
 
  return pd.email;
}