dlg_attach.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 "lib.h"
#include "expando/lib.h"
#include "hooks/lib.h"
#include "key/lib.h"
#include "menu/lib.h"
#include "attach.h"
#include "commands.h"
#include "functions.h"
#include "mutt_logging.h"
#include "private_data.h"
#include "recvattach.h"

static const struct Mapping AttachmentHelp[] = {
  // clang-format off
  { N_("Exit"),  OP_EXIT },
  { N_("Save"),  OP_ATTACHMENT_SAVE },
  { N_("Pipe"),  OP_PIPE },
  { N_("Print"), OP_ATTACHMENT_PRINT },
  { N_("Help"),  OP_HELP },
  { NULL, 0 },
  // clang-format on
};

static int attach_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, "attach_format") && !mutt_str_equal(ev_c->name, "message_format"))
    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 attach_make_entry(struct Menu *menu, int line, int max_cols, struct Buffer *buf)
{
  struct AttachPrivateData *priv = menu->mdata;
  struct AttachCtx *actx = priv->actx;
 
  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_attach_format = cs_subset_expando(NeoMutt->sub, "attach_format");
  return expando_filter(c_attach_format, AttachRenderCallbacks,
                        (actx->idx[actx->v2r[line]]), MUTT_FORMAT_ARROWCURSOR,
                        max_cols, NeoMutt->env, buf);
}

static int attach_tag(struct Menu *menu, int sel, int act)
{
  struct AttachPrivateData *priv = menu->mdata;
  struct AttachCtx *actx = priv->actx;
 
  struct Body *cur = actx->idx[actx->v2r[sel]]->body;
  bool ot = cur->tagged;
 
  cur->tagged = ((act >= 0) ? act : !cur->tagged);
  return cur->tagged - ot;
}

static int attach_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, attach_config_observer, menu);
  notify_observer_remove(win_menu->notify, attach_window_observer, win_menu);
 
  mutt_debug(LL_DEBUG5, "window delete done\n");
  return 0;
}

void dlg_attachment(struct ConfigSubset *sub, struct MailboxView *mv,
                    struct Email *e, FILE *fp, bool attach_msg)
{
  if (!mv || !mv->mailbox || !e || !fp)
    return;
 
  struct Mailbox *m = mv->mailbox;
 
  /* make sure we have parsed this message */
  mutt_parse_mime_message(e, fp);
  exec_message_hook(m, e, CMD_MESSAGE_HOOK);
 
  struct SimpleDialogWindows sdw = simple_dialog_new(MdAttach, WT_DLG_ATTACHMENT, AttachmentHelp);
  struct Menu *menu = sdw.menu;
  menu->make_entry = attach_make_entry;
  menu->tag = attach_tag;
 
  struct AttachCtx *actx = mutt_actx_new();
  actx->email = e;
  actx->fp_root = fp;
  mutt_update_recvattach_menu(actx, menu, true);
 
  struct AttachPrivateData *priv = attach_private_data_new();
  priv->menu = menu;
  priv->actx = actx;
  priv->sub = sub;
  priv->mailbox = m;
  priv->attach_msg = attach_msg;
  menu->mdata = priv;
  menu->mdata_free = attach_private_data_free;
 
  // NT_COLOR is handled by the SimpleDialog
  notify_observer_add(NeoMutt->sub->notify, NT_CONFIG, attach_config_observer, menu);
  notify_observer_add(menu->win->notify, NT_WINDOW, attach_window_observer, menu->win);
 
  sbar_set_title(sdw.sbar, _("Attachments"));
 
  struct MuttWindow *old_focus = window_set_focus(menu->win);
  // ---------------------------------------------------------------------------
  // Event Loop
  int rc = 0;
  int op = OP_NULL;
  struct KeyEvent event = { 0, OP_NULL };
  do
  {
    menu_tagging_dispatcher(menu->win, &event);
    window_redraw(NULL);
 
    event = km_dokey(MdAttach, GETCH_NO_FLAGS);
    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(MdAttach);
      continue;
    }
    mutt_clear_error();
 
    rc = attach_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);
 
    if (rc == FR_CONTINUE)
    {
      event.op = priv->op;
    }
 
  } while (rc != FR_DONE);
  // ---------------------------------------------------------------------------
 
  window_set_focus(old_focus);
  simple_dialog_free(&sdw.dlg);
}