dlg_index.c File Reference

Index Dialog. More...

#include "config.h"
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include "private.h"
#include "mutt/lib.h"
#include "config/lib.h"
#include "email/lib.h"
#include "core/lib.h"
#include "conn/lib.h"
#include "gui/lib.h"
#include "lib.h"
#include "color/lib.h"
#include "expando/lib.h"
#include "key/lib.h"
#include "menu/lib.h"
#include "nntp/lib.h"
#include "pager/lib.h"
#include "pattern/lib.h"
#include "sidebar/lib.h"
#include "expando_index.h"
#include "functions.h"
#include "globals.h"
#include "hook.h"
#include "mutt_logging.h"
#include "mutt_mailbox.h"
#include "mutt_thread.h"
#include "mview.h"
#include "mx.h"
#include "nntp/adata.h"
#include "private_data.h"
#include "protos.h"
#include "shared_data.h"
#include "status.h"
#include "notmuch/lib.h"
#include "monitor.h"

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Functions
bool	check_acl (struct Mailbox *m, AclFlags acl, const char *msg)
	Check the ACLs for a function.
void	collapse_all (struct MailboxView *mv, struct Menu *menu, int toggle)
	Collapse/uncollapse all threads.
static void	uncollapse_thread (struct MailboxView *mv, int index)
	Open a collapsed thread.
int	find_next_undeleted (struct MailboxView *mv, int msgno, bool uncollapse)
	Find the next undeleted email.
int	find_previous_undeleted (struct MailboxView *mv, int msgno, bool uncollapse)
	Find the previous undeleted email.
int	find_first_message (struct MailboxView *mv)
	Get index of first new message.
void	resort_index (struct MailboxView *mv, struct Menu *menu)
	Resort the index.
static void	update_index_threaded (struct MailboxView *mv, enum MxStatus check, int oldcount)
	Update the index (if threaded)
static void	update_index_unthreaded (struct MailboxView *mv, enum MxStatus check)
	Update the index (if unthreaded)
void	update_index (struct Menu *menu, struct MailboxView *mv, enum MxStatus check, int oldcount, const struct IndexSharedData *shared)
	Update the index.
static int	index_mailbox_observer (struct NotifyCallback *nc)
	Notification that a Mailbox has changed - Implements observer_t -.
void	change_folder_mailbox (struct Menu *menu, struct Mailbox *m, int *oldcount, struct IndexSharedData *shared, bool read_only)
	Change to a different Mailbox by pointer.
struct Mailbox *	change_folder_notmuch (struct Menu *menu, char *buf, int buflen, int *oldcount, struct IndexSharedData *shared, bool read_only)
	Change to a different Notmuch Mailbox by string.
void	change_folder_string (struct Menu *menu, struct Buffer *buf, int *oldcount, struct IndexSharedData *shared, bool read_only)
	Change to a different Mailbox by string.
int	mutt_make_string (struct Buffer *buf, size_t max_cols, const struct Expando *exp, struct Mailbox *m, int inpgr, struct Email *e, MuttFormatFlags flags, const char *progress)
	Create formatted strings using mailbox expandos.
int	index_make_entry (struct Menu *menu, int line, int max_cols, struct Buffer *buf)
	Format an Email for the Menu - Implements Menu::make_entry() -.
const struct AttrColor *	index_color (struct Menu *menu, int line)
	Calculate the colour for a line of the index - Implements Menu::color() -.
void	mutt_draw_statusline (struct MuttWindow *win, int max_cols, const char *buf, size_t buflen)
	Draw a highlighted status bar.
struct Mailbox *	dlg_index (struct MuttWindow *dlg, struct Mailbox *m_init)
	Display a list of emails -.
void	email_set_color (struct Mailbox *m, struct Email *e)
	Select an Index colour for an Email.
struct MuttWindow *	index_pager_init (void)
	Allocate the Windows for the Index/Pager.
void	index_change_folder (struct MuttWindow *dlg, struct Mailbox *m)
	Change the current folder, cautiously.

Variables
static const struct Mapping	IndexHelp []
	Help Bar for the Index dialog.
const struct Mapping	IndexNewsHelp []
	Help Bar for the News Index dialog.

Detailed Description

Index Dialog.

Authors

• Pietro Cerutti
• Richard Russon
• R Primus
• Eric Blake
• Igor Serebryany
• Dennis Schön
• Tóth János

Copyright

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Definition in file dlg_index.c.

Function Documentation

check_acl()

bool check_acl	(	struct Mailbox *	m,
		AclFlags	acl,
		const char *	msg )

Check the ACLs for a function.

Parameters

m	Mailbox
acl	ACL, see AclFlags
msg	Error message for failure

Return values

true	The function is permitted

Definition at line 138 of file dlg_index.c.

{
  if (!m)
    return false;
 
  if (!(m->rights & acl))
  {
    /* L10N: %s is one of the CHECK_ACL entries below. */
    mutt_error(_("%s: Operation not permitted by ACL"), msg);
    return false;
  }
 
  return true;
}

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collapse_all()

void collapse_all	(	struct MailboxView *	mv,
		struct Menu *	menu,
		int	toggle )

Collapse/uncollapse all threads.

Parameters

mv	Mailbox View
menu	current menu
toggle	toggle collapsed state

This function is called by the OP_MAIN_COLLAPSE_ALL command and on folder enter if the $collapse_all option is set. In the first case, the toggle parameter is 1 to actually toggle collapsed/uncollapsed state on all threads. In the second case, the toggle parameter is 0, actually turning this function into a one-way collapse.

Definition at line 165 of file dlg_index.c.

{
  if (!mv || !mv->mailbox || (mv->mailbox->msg_count == 0) || !menu)
    return;
 
  struct Email *e_cur = mutt_get_virt_email(mv->mailbox, menu_get_index(menu));
  if (!e_cur)
    return;
 
  int final;
 
  /* Figure out what the current message would be after folding / unfolding,
   * so that we can restore the cursor in a sane way afterwards. */
  if (e_cur->collapsed && toggle)
    final = mutt_uncollapse_thread(e_cur);
  else if (mutt_thread_can_collapse(e_cur))
    final = mutt_collapse_thread(e_cur);
  else
    final = e_cur->vnum;
 
  if (final == -1)
    return;
 
  struct Email *base = mutt_get_virt_email(mv->mailbox, final);
  if (!base)
    return;
 
  /* Iterate all threads, perform collapse/uncollapse as needed */
  mv->collapsed = toggle ? !mv->collapsed : true;
  mutt_thread_collapse(mv->threads, mv->collapsed);
 
  /* Restore the cursor */
  mutt_set_vnum(mv->mailbox);
  menu->max = mv->mailbox->vcount;
  for (int i = 0; i < mv->mailbox->vcount; i++)
  {
    struct Email *e = mutt_get_virt_email(mv->mailbox, i);
    if (!e)
      break;
    if (e->index == base->index)
    {
      menu_set_index(menu, i);
      break;
    }
  }
 
  menu_queue_redraw(menu, MENU_REDRAW_INDEX);
}

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uncollapse_thread()

static void uncollapse_thread ( struct MailboxView * mv, int index )

static

Open a collapsed thread.

Parameters

mv	Mailbox View
index	Message number

Definition at line 219 of file dlg_index.c.

{
  if (!mv || !mv->mailbox)
    return;
 
  struct Mailbox *m = mv->mailbox;
  struct Email *e = mutt_get_virt_email(m, index);
  if (e && e->collapsed)
  {
    mutt_uncollapse_thread(e);
    mutt_set_vnum(m);
  }
}

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find_next_undeleted()

int find_next_undeleted	(	struct MailboxView *	mv,
		int	msgno,
		bool	uncollapse )

Find the next undeleted email.

Parameters

mv	Mailbox view
msgno	Message number to start at
uncollapse	Open collapsed threads

Return values

>=0	Message number of next undeleted email
-1	No more undeleted messages

Definition at line 241 of file dlg_index.c.

{
  if (!mv || !mv->mailbox)
    return -1;
 
  struct Mailbox *m = mv->mailbox;
 
  int index = -1;
  for (int i = msgno + 1; i < m->vcount; i++)
  {
    struct Email *e = mutt_get_virt_email(m, i);
    if (!e)
      continue;
    if (!e->deleted)
    {
      index = i;
      break;
    }
  }
 
  if (uncollapse)
    uncollapse_thread(mv, index);
 
  return index;
}

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find_previous_undeleted()

int find_previous_undeleted	(	struct MailboxView *	mv,
		int	msgno,
		bool	uncollapse )

Find the previous undeleted email.

Parameters

mv	Mailbox View
msgno	Message number to start at
uncollapse	Open collapsed threads

Return values

>=0	Message number of next undeleted email
-1	No more undeleted messages

Definition at line 275 of file dlg_index.c.

{
  if (!mv || !mv->mailbox)
    return -1;
 
  struct Mailbox *m = mv->mailbox;
 
  int index = -1;
  for (int i = msgno - 1; i >= 0; i--)
  {
    struct Email *e = mutt_get_virt_email(m, i);
    if (!e)
      continue;
    if (!e->deleted)
    {
      index = i;
      break;
    }
  }
 
  if (uncollapse)
    uncollapse_thread(mv, index);
 
  return index;
}

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find_first_message()

int find_first_message

(

struct MailboxView *

mv

)

Get index of first new message.

Parameters

mv	Mailbox view

Return values

num	Index of first new message

Return the index of the first new message, or failing that, the first unread message.

Definition at line 309 of file dlg_index.c.

{
  if (!mv)
    return 0;
 
  struct Mailbox *m = mv->mailbox;
  if (!m || (m->msg_count == 0))
    return 0;
 
  int old = -1;
  for (int i = 0; i < m->vcount; i++)
  {
    struct Email *e = mutt_get_virt_email(m, i);
    if (!e)
      continue;
    if (!e->read && !e->deleted)
    {
      if (!e->old)
        return i;
      if (old == -1)
        old = i;
    }
  }
  if (old != -1)
    return old;
 
  /* If `$use_threads` is not threaded and `$sort` is reverse, the latest
   * message is first.  Otherwise, the latest message is first if exactly
   * one of `$use_threads` and `$sort` are reverse.
   */
  enum EmailSortType c_sort = cs_subset_sort(m->sub, "sort");
  if ((c_sort & SORT_MASK) == EMAIL_SORT_THREADS)
    c_sort = cs_subset_sort(m->sub, "sort_aux");
  bool reverse = false;
  switch (mutt_thread_style())
  {
    case UT_FLAT:
      reverse = c_sort & SORT_REVERSE;
      break;
    case UT_THREADS:
      reverse = c_sort & SORT_REVERSE;
      break;
    case UT_REVERSE:
      reverse = !(c_sort & SORT_REVERSE);
      break;
    default:
      ASSERT(false);
  }
 
  if (reverse || (m->vcount == 0))
    return 0;
 
  return m->vcount - 1;
}

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resort_index()

void resort_index	(	struct MailboxView *	mv,
		struct Menu *	menu )

Resort the index.

Parameters

mv	Mailbox View
menu	Current Menu

Definition at line 369 of file dlg_index.c.

{
  if (!mv || !mv->mailbox || !menu)
    return;
 
  struct Mailbox *m = mv->mailbox;
  const int old_index = menu_get_index(menu);
  struct Email *e_cur = mutt_get_virt_email(m, old_index);
 
  int new_index = -1;
  mutt_sort_headers(mv, false);
 
  /* Restore the current message */
  for (int i = 0; i < m->vcount; i++)
  {
    struct Email *e = mutt_get_virt_email(m, i);
    if (!e)
      continue;
    if (e == e_cur)
    {
      new_index = i;
      break;
    }
  }
 
  if (mutt_using_threads() && (old_index < 0))
    new_index = mutt_parent_message(e_cur, false);
 
  if (old_index < 0)
    new_index = find_first_message(mv);
 
  menu->max = m->vcount;
  menu_set_index(menu, new_index);
  menu_queue_redraw(menu, MENU_REDRAW_INDEX);
}

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update_index_threaded()

static void update_index_threaded ( struct MailboxView * mv, enum MxStatus check, int oldcount )

static

Update the index (if threaded)

Parameters

mv	Mailbox
check	Flags, e.g. MX_STATUS_REOPENED
oldcount	How many items are currently in the index

Definition at line 411 of file dlg_index.c.

{
  struct Email **save_new = NULL;
  const bool lmt = mview_has_limit(mv);
 
  struct Mailbox *m = mv->mailbox;
  int num_new = MAX(0, m->msg_count - oldcount);
 
  const bool c_uncollapse_new = cs_subset_bool(m->sub, "uncollapse_new");
  /* save the list of new messages */
  if ((check != MX_STATUS_REOPENED) && (oldcount > 0) &&
      (lmt || c_uncollapse_new) && (num_new > 0))
  {
    save_new = MUTT_MEM_MALLOC(num_new, struct Email *);
    for (int i = oldcount; i < m->msg_count; i++)
      save_new[i - oldcount] = m->emails[i];
  }
 
  /* Sort first to thread the new messages, because some patterns
   * require the threading information.
   *
   * If the mailbox was reopened, need to rethread from scratch. */
  mutt_sort_headers(mv, (check == MX_STATUS_REOPENED));
 
  if (lmt)
  {
    for (int i = 0; i < m->msg_count; i++)
    {
      struct Email *e = m->emails[i];
 
      if ((e->limit_visited && e->visible) ||
          mutt_pattern_exec(SLIST_FIRST(mv->limit_pattern),
                            MUTT_MATCH_FULL_ADDRESS, m, e, NULL))
      {
        /* vnum will get properly set by mutt_set_vnum(), which
         * is called by mutt_sort_headers() just below. */
        e->vnum = 1;
        e->visible = true;
      }
      else
      {
        e->vnum = -1;
        e->visible = false;
      }
 
      // mark email as visited so we don't re-apply the pattern next time
      e->limit_visited = true;
    }
    /* Need a second sort to set virtual numbers and redraw the tree */
    mutt_sort_headers(mv, false);
  }
 
  /* uncollapse threads with new mail */
  if (c_uncollapse_new)
  {
    if (check == MX_STATUS_REOPENED)
    {
      mv->collapsed = false;
      mutt_thread_collapse(mv->threads, mv->collapsed);
      mutt_set_vnum(m);
    }
    else if (oldcount > 0)
    {
      for (int j = 0; j < num_new; j++)
      {
        if (save_new[j]->visible)
        {
          mutt_uncollapse_thread(save_new[j]);
        }
      }
      mutt_set_vnum(m);
    }
  }
 
  FREE(&save_new);
}

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update_index_unthreaded()

static void update_index_unthreaded ( struct MailboxView * mv, enum MxStatus check )

static

Update the index (if unthreaded)

Parameters

mv	Mailbox
check	Flags, e.g. MX_STATUS_REOPENED

Definition at line 493 of file dlg_index.c.

{
  /* We are in a limited view. Check if the new message(s) satisfy
   * the limit criteria. If they do, set their virtual msgno so that
   * they will be visible in the limited view */
  if (mview_has_limit(mv))
  {
    int padding = mx_msg_padding_size(mv->mailbox);
    mv->mailbox->vcount = mv->vsize = 0;
    for (int i = 0; i < mv->mailbox->msg_count; i++)
    {
      struct Email *e = mv->mailbox->emails[i];
      if (!e)
        break;
 
      if ((e->limit_visited && e->visible) ||
          mutt_pattern_exec(SLIST_FIRST(mv->limit_pattern),
                            MUTT_MATCH_FULL_ADDRESS, mv->mailbox, e, NULL))
      {
        ASSERT(mv->mailbox->vcount < mv->mailbox->msg_count);
        e->vnum = mv->mailbox->vcount;
        mv->mailbox->v2r[mv->mailbox->vcount] = i;
        e->visible = true;
        mv->mailbox->vcount++;
        struct Body *b = e->body;
        mv->vsize += b->length + b->offset - b->hdr_offset + padding;
      }
      else
      {
        e->visible = false;
      }
 
      // mark email as visited so we don't re-apply the pattern next time
      e->limit_visited = true;
    }
  }
 
  /* if the mailbox was reopened, need to rethread from scratch */
  mutt_sort_headers(mv, (check == MX_STATUS_REOPENED));
}

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update_index()

void update_index	(	struct Menu *	menu,
		struct MailboxView *	mv,
		enum MxStatus	check,
		int	oldcount,
		const struct IndexSharedData *	shared )

Update the index.

Parameters

menu	Current Menu
mv	Mailbox
check	Flags, e.g. MX_STATUS_REOPENED
oldcount	How many items are currently in the index
shared	Shared Index data

Definition at line 542 of file dlg_index.c.

{
  if (!menu || !mv)
    return;
 
  struct Mailbox *m = mv->mailbox;
  if (mutt_using_threads())
    update_index_threaded(mv, check, oldcount);
  else
    update_index_unthreaded(mv, check);
 
  menu->max = m->vcount;
  const int old_index = menu_get_index(menu);
  int index = -1;
  if (oldcount)
  {
    /* restore the current message to the message it was pointing to */
    for (int i = 0; i < m->vcount; i++)
    {
      struct Email *e = mutt_get_virt_email(m, i);
      if (!e)
        continue;
      if (index_shared_data_is_cur_email(shared, e))
      {
        index = i;
        break;
      }
    }
  }
 
  if (index < 0)
  {
    index = (old_index < m->vcount) ? old_index : find_first_message(mv);
  }
  menu_set_index(menu, index);
}

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change_folder_mailbox()

void change_folder_mailbox	(	struct Menu *	menu,
		struct Mailbox *	m,
		int *	oldcount,
		struct IndexSharedData *	shared,
		bool	read_only )

Change to a different Mailbox by pointer.

Parameters

menu	Current Menu
m	Mailbox
oldcount	How many items are currently in the index
shared	Shared Index data
read_only	Open Mailbox in read-only mode

Definition at line 611 of file dlg_index.c.

{
  if (!m)
    return;
 
  /* keepalive failure in mutt_enter_fname may kill connection. */
  if (shared->mailbox && (buf_is_empty(&shared->mailbox->pathbuf)))
  {
    mview_free(&shared->mailbox_view);
    mailbox_free(&shared->mailbox);
  }
 
  if (shared->mailbox)
  {
    char *new_last_folder = NULL;
#ifdef USE_INOTIFY
    int monitor_remove_rc = mutt_monitor_remove(NULL);
#endif
    if (shared->mailbox->compress_info && (shared->mailbox->realpath[0] != '\0'))
      new_last_folder = mutt_str_dup(shared->mailbox->realpath);
    else
      new_last_folder = mutt_str_dup(mailbox_path(shared->mailbox));
    *oldcount = shared->mailbox->msg_count;
 
    const enum MxStatus check = mx_mbox_close(shared->mailbox);
    if (check == MX_STATUS_OK)
    {
      mview_free(&shared->mailbox_view);
      if (shared->mailbox != m)
      {
        mailbox_free(&shared->mailbox);
      }
    }
    else
    {
#ifdef USE_INOTIFY
      if (monitor_remove_rc == 0)
        mutt_monitor_add(NULL);
#endif
      if ((check == MX_STATUS_NEW_MAIL) || (check == MX_STATUS_REOPENED))
        update_index(menu, shared->mailbox_view, check, *oldcount, shared);
 
      FREE(&new_last_folder);
      mutt_pattern_free(&shared->search_state->pattern);
      menu_queue_redraw(menu, MENU_REDRAW_INDEX);
      return;
    }
    FREE(&LastFolder);
    LastFolder = new_last_folder;
  }
  mutt_str_replace(&CurrentFolder, mailbox_path(m));
 
  /* If the `folder-hook` were to call `unmailboxes`, then the Mailbox (`m`)
   * could be deleted, leaving `m` dangling. */
  // TODO: Refactor this function to avoid the need for an observer
  notify_observer_add(m->notify, NT_MAILBOX, index_mailbox_observer, &m);
  char *dup_path = mutt_str_dup(mailbox_path(m));
  char *dup_name = mutt_str_dup(m->name);
 
  mutt_folder_hook(dup_path, dup_name);
  if (m)
  {
    /* `m` is still valid, but we won't need the observer again before the end
     * of the function. */
    notify_observer_remove(m->notify, index_mailbox_observer, &m);
  }
  else
  {
    // Recreate the Mailbox as the folder-hook might have invoked `mailboxes`
    // and/or `unmailboxes`.
    m = mx_path_resolve(dup_path);
  }
 
  FREE(&dup_path);
  FREE(&dup_name);
 
  if (!m)
    return;
 
  const OpenMailboxFlags flags = read_only ? MUTT_READONLY : MUTT_OPEN_NO_FLAGS;
  if (mx_mbox_open(m, flags))
  {
    struct MailboxView *mv = mview_new(m, NeoMutt->notify);
    index_shared_data_set_mview(shared, mv);
 
    menu->max = m->msg_count;
    menu_set_index(menu, find_first_message(shared->mailbox_view));
#ifdef USE_INOTIFY
    mutt_monitor_add(NULL);
#endif
  }
  else
  {
    index_shared_data_set_mview(shared, NULL);
    menu_set_index(menu, 0);
  }
 
  const bool c_collapse_all = cs_subset_bool(shared->sub, "collapse_all");
  if (mutt_using_threads() && c_collapse_all)
    collapse_all(shared->mailbox_view, menu, 0);
 
  mutt_clear_error();
  /* force the mailbox check after we have changed the folder */
  struct EventMailbox ev_m = { shared->mailbox };
  mutt_mailbox_check(ev_m.mailbox, MUTT_MAILBOX_CHECK_POSTPONED);
  menu_queue_redraw(menu, MENU_REDRAW_FULL);
  mutt_pattern_free(&shared->search_state->pattern);
}

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change_folder_notmuch()

struct Mailbox * change_folder_notmuch	(	struct Menu *	menu,
		char *	buf,
		int	buflen,
		int *	oldcount,
		struct IndexSharedData *	shared,
		bool	read_only )

Change to a different Notmuch Mailbox by string.

Parameters

menu	Current Menu
buf	Folder to change to
buflen	Length of buffer
oldcount	How many items are currently in the index
shared	Shared Index data
read_only	Open Mailbox in read-only mode

Return values

ptr

Mailbox

Definition at line 732 of file dlg_index.c.

{
  if (!nm_url_from_query(NULL, buf, buflen))
  {
    mutt_message(_("Failed to create query, aborting"));
    return NULL;
  }
 
  struct Mailbox *m_query = mx_path_resolve(buf);
  change_folder_mailbox(menu, m_query, oldcount, shared, read_only);
  if (!shared->mailbox_view)
    mailbox_free(&m_query);
  return m_query;
}

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change_folder_string()

void change_folder_string	(	struct Menu *	menu,
		struct Buffer *	buf,
		int *	oldcount,
		struct IndexSharedData *	shared,
		bool	read_only )

Change to a different Mailbox by string.

Parameters

menu	Current Menu
buf	Folder to change to
oldcount	How many items are currently in the index
shared	Shared Index data
read_only	Open Mailbox in read-only mode

Definition at line 757 of file dlg_index.c.

{
  if (OptNews)
  {
    OptNews = false;
    nntp_expand_path(buf->data, buf->dsize, &CurrentNewsSrv->conn->account);
  }
  else
  {
    const char *const c_folder = cs_subset_string(shared->sub, "folder");
    mx_path_canon(buf, c_folder, NULL);
  }
 
  enum MailboxType type = mx_path_probe(buf_string(buf));
  if ((type == MUTT_MAILBOX_ERROR) || (type == MUTT_UNKNOWN))
  {
    // Look for a Mailbox by its description, before failing
    struct Mailbox *m = mailbox_find_name(buf_string(buf));
    if (m)
    {
      change_folder_mailbox(menu, m, oldcount, shared, read_only);
    }
    else
    {
      mutt_error(_("%s is not a mailbox"), buf_string(buf));
    }
    return;
  }
 
  struct Mailbox *m = mx_path_resolve(buf_string(buf));
  change_folder_mailbox(menu, m, oldcount, shared, read_only);
}

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mutt_make_string()

int mutt_make_string	(	struct Buffer *	buf,
		size_t	max_cols,
		const struct Expando *	exp,
		struct Mailbox *	m,
		int	inpgr,
		struct Email *	e,
		MuttFormatFlags	flags,
		const char *	progress )

Create formatted strings using mailbox expandos.

Parameters

buf	Buffer for the result
max_cols	Number of screen columns (-1 means unlimited)
exp	Expando containing expando tree
m	Mailbox
inpgr	Message shown in the pager
e	Email
flags	Flags, see MuttFormatFlags
progress	Pager progress string

Return values

num	Number of screen columns used

Definition at line 803 of file dlg_index.c.

{
  if (!exp)
    return 0;
 
  struct EmailFormatInfo efi = { 0 };
 
  efi.email = e;
  efi.mailbox = m;
  efi.msg_in_pager = inpgr;
  efi.pager_progress = progress;
 
  return expando_filter(exp, IndexRenderCallbacks, &efi, flags, max_cols,
                        NeoMutt->env, buf);
}

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mutt_draw_statusline()

void mutt_draw_statusline	(	struct MuttWindow *	win,
		int	max_cols,
		const char *	buf,
		size_t	buflen )

Draw a highlighted status bar.

Parameters

win	Window
max_cols	Maximum number of screen columns
buf	Message to be displayed
buflen	Length of the buffer

Users configure the highlighting of the status bar, e.g. color status red default "[0-9][0-9]:[0-9][0-9]"

Where regexes overlap, the one nearest the start will be used. If two regexes start at the same place, the longer match will be used.

Colours of the status bar

< First character of that colour

< Last character of that colour

Definition at line 959 of file dlg_index.c.

{
  if (!buf || !stdscr)
    return;
 
  size_t i = 0;
  size_t offset = 0;
  bool found = false;
  size_t chunks = 0;
  size_t len = 0;

  struct StatusSyntax
  {
    const struct AttrColor *attr_color;
    int first; 
    int last;  
  } *syntax = NULL;
 
  const struct AttrColor *ac_base = merged_color_overlay(simple_color_get(MT_COLOR_NORMAL),
                                                         simple_color_get(MT_COLOR_STATUS));
  do
  {
    struct RegexColor *cl = NULL;
    found = false;
 
    if (!buf[offset])
      break;
 
    /* loop through each "color status regex" */
    STAILQ_FOREACH(cl, regex_colors_get_list(MT_COLOR_STATUS), entries)
    {
      regmatch_t pmatch[cl->match + 1];
      memset(pmatch, 0, (cl->match + 1) * sizeof(regmatch_t));
 
      if (regexec(&cl->regex, buf + offset, cl->match + 1, pmatch, 0) != 0)
        continue; /* regex doesn't match the status bar */
 
      int first = pmatch[cl->match].rm_so + offset;
      int last = pmatch[cl->match].rm_eo + offset;
 
      if (first == last)
        continue; /* ignore an empty regex */
 
      if (!found)
      {
        chunks++;
        MUTT_MEM_REALLOC(&syntax, chunks, struct StatusSyntax);
      }
 
      i = chunks - 1;
      if (!found || (first < syntax[i].first) ||
          ((first == syntax[i].first) && (last > syntax[i].last)))
      {
        const struct AttrColor *ac_merge = merged_color_overlay(ac_base, &cl->attr_color);
 
        syntax[i].attr_color = ac_merge;
        syntax[i].first = first;
        syntax[i].last = last;
      }
      found = true;
    }
 
    if (syntax)
    {
      offset = syntax[i].last;
    }
  } while (found);
 
  /* Only 'len' bytes will fit into 'max_cols' screen columns */
  len = mutt_wstr_trunc(buf, buflen, max_cols, NULL);
 
  offset = 0;
 
  if ((chunks > 0) && (syntax[0].first > 0))
  {
    /* Text before the first highlight */
    mutt_window_addnstr(win, buf, MIN(len, syntax[0].first));
    mutt_curses_set_color(ac_base);
    if (len <= syntax[0].first)
      goto dsl_finish; /* no more room */
 
    offset = syntax[0].first;
  }
 
  for (i = 0; i < chunks; i++)
  {
    /* Highlighted text */
    mutt_curses_set_color(syntax[i].attr_color);
    mutt_window_addnstr(win, buf + offset, MIN(len, syntax[i].last) - offset);
    if (len <= syntax[i].last)
      goto dsl_finish; /* no more room */
 
    size_t next;
    if ((i + 1) == chunks)
    {
      next = len;
    }
    else
    {
      next = MIN(len, syntax[i + 1].first);
    }
 
    mutt_curses_set_color(ac_base);
    offset = syntax[i].last;
    mutt_window_addnstr(win, buf + offset, next - offset);
 
    offset = next;
    if (offset >= len)
      goto dsl_finish; /* no more room */
  }
 
  mutt_curses_set_color(ac_base);
  if (offset < len)
  {
    /* Text after the last highlight */
    mutt_window_addnstr(win, buf + offset, len - offset);
  }
 
  int width = mutt_strwidth(buf);
  if (width < max_cols)
  {
    /* Pad the rest of the line with whitespace */
    mutt_paddstr(win, max_cols - width, "");
  }
dsl_finish:
  FREE(&syntax);
}

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email_set_color()

void email_set_color	(	struct Mailbox *	m,
		struct Email *	e )

Select an Index colour for an Email.

Parameters

m	Mailbox
e	Current Email

Calculate the colour for an Email in the Index. Cache the colour in the Email.

Definition at line 1406 of file dlg_index.c.

{
  if (!e)
    return;
 
  struct RegexColor *color = NULL;
  struct PatternCache cache = { 0 };
 
  const struct AttrColor *ac_merge = NULL;
  STAILQ_FOREACH(color, regex_colors_get_list(MT_COLOR_INDEX), entries)
  {
    if (mutt_pattern_exec(SLIST_FIRST(color->color_pattern),
                          MUTT_MATCH_FULL_ADDRESS, m, e, &cache))
    {
      ac_merge = merged_color_overlay(ac_merge, &color->attr_color);
    }
  }
 
  struct AttrColor *ac_normal = simple_color_get(MT_COLOR_NORMAL);
  if (ac_merge)
    ac_merge = merged_color_overlay(ac_normal, ac_merge);
  else
    ac_merge = ac_normal;
 
  e->attr_color = ac_merge;
}

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index_pager_init()

struct MuttWindow * index_pager_init

(

void

)

Allocate the Windows for the Index/Pager.

Return values

ptr	Dialog containing nested Windows

Definition at line 1437 of file dlg_index.c.

{
  struct MuttWindow *dlg = mutt_window_new(WT_DLG_INDEX, MUTT_WIN_ORIENT_HORIZONTAL,
                                           MUTT_WIN_SIZE_MAXIMISE, MUTT_WIN_SIZE_UNLIMITED,
                                           MUTT_WIN_SIZE_UNLIMITED);
 
  struct IndexSharedData *shared = index_shared_data_new();
  notify_set_parent(shared->notify, dlg->notify);
 
  dlg->wdata = shared;
  dlg->wdata_free = index_shared_data_free;
 
  const bool c_status_on_top = cs_subset_bool(NeoMutt->sub, "status_on_top");
 
  struct MuttWindow *panel_index = ipanel_new(c_status_on_top, shared);
  struct MuttWindow *panel_pager = ppanel_new(c_status_on_top, shared);
 
  mutt_window_add_child(dlg, panel_index);
  mutt_window_add_child(dlg, panel_pager);
 
  return dlg;
}

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index_change_folder()

void index_change_folder	(	struct MuttWindow *	dlg,
		struct Mailbox *	m )

Change the current folder, cautiously.

Parameters

dlg	Dialog holding the Index
m	Mailbox to change to

Definition at line 1465 of file dlg_index.c.

{
  if (!dlg || !m)
    return;
 
  struct IndexSharedData *shared = dlg->wdata;
  if (!shared)
    return;
 
  struct MuttWindow *panel_index = window_find_child(dlg, WT_INDEX);
  if (!panel_index)
    return;
 
  struct IndexPrivateData *priv = panel_index->wdata;
  if (!priv)
    return;
 
  change_folder_mailbox(priv->menu, m, &priv->oldcount, shared, false);
}

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Variable Documentation

IndexHelp

const struct Mapping IndexHelp[]

static

Initial value:

= {
  
  { N_("Quit"),  OP_QUIT },
  { N_("Del"),   OP_DELETE },
  { N_("Undel"), OP_UNDELETE },
  { N_("Save"),  OP_SAVE },
  { N_("Mail"),  OP_MAIL },
  { N_("Reply"), OP_REPLY },
  { N_("Group"), OP_GROUP_REPLY },
  { N_("Help"),  OP_HELP },
  { NULL, 0 },
  
}

Help Bar for the Index dialog.

Definition at line 102 of file dlg_index.c.

                                          {
  // clang-format off
  { N_("Quit"),  OP_QUIT },
  { N_("Del"),   OP_DELETE },
  { N_("Undel"), OP_UNDELETE },
  { N_("Save"),  OP_SAVE },
  { N_("Mail"),  OP_MAIL },
  { N_("Reply"), OP_REPLY },
  { N_("Group"), OP_GROUP_REPLY },
  { N_("Help"),  OP_HELP },
  { NULL, 0 },
  // clang-format on
};

IndexNewsHelp

const struct Mapping IndexNewsHelp[]

Initial value:

= {
  
  { N_("Quit"),     OP_QUIT },
  { N_("Del"),      OP_DELETE },
  { N_("Undel"),    OP_UNDELETE },
  { N_("Save"),     OP_SAVE },
  { N_("Post"),     OP_POST },
  { N_("Followup"), OP_FOLLOWUP },
  { N_("Catchup"),  OP_CATCHUP },
  { N_("Help"),     OP_HELP },
  { NULL, 0 },
  
}

Help Bar for the News Index dialog.

Definition at line 117 of file dlg_index.c.

                                       {
  // clang-format off
  { N_("Quit"),     OP_QUIT },
  { N_("Del"),      OP_DELETE },
  { N_("Undel"),    OP_UNDELETE },
  { N_("Save"),     OP_SAVE },
  { N_("Post"),     OP_POST },
  { N_("Followup"), OP_FOLLOWUP },
  { N_("Catchup"),  OP_CATCHUP },
  { N_("Help"),     OP_HELP },
  { NULL, 0 },
  // clang-format on
};