/*

* Copyright (c) 2021 Omar Polo <op@omarpolo.com>

*

* Permission to use, copy, modify, and distribute this software for any

* purpose with or without fee is hereby granted, provided that the above

* copyright notice and this permission notice appear in all copies.

*

* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF

* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

*/

#include "compat.h"

#include <stdlib.h>

#include "compl.h"

#include "telescope.h"

#include "session.h"

/*

* Provide completions for load-url (lu).

*/

const char *

compl_lu(void **data, void **ret, const char **descr)

{

struct history_item **state = (struct history_item **)data;

/* first time: init the state */

if (*state == NULL)

*state = history.items;

if (*state == history.items + history.len)

return NULL;

return (*state)++->uri;

}

/*

* Provide completions for execute-extended-command (eecmd).

*/

const char *

compl_eecmd(void **data, void **ret, const char **descr)

{

struct cmd **state = (struct cmd **)data;

/* first time: init the state */

if (*state == NULL)

*state = cmds;

if ((*state)->cmd == NULL)

return NULL;

*descr = (*state)->descr;

return (*state)++->cmd;

}

/*

* Provide completions for tab-select.

*/

const char *

compl_ts(void **data, void **ret, const char **descr)

{

struct tab **tab = (struct tab **)data;

/* first time: init the state */

if (*tab == NULL)

*tab = TAILQ_FIRST(&tabshead);

else if ((*tab = TAILQ_NEXT(*tab, tabs)) == NULL)

return NULL;

*ret = *tab;

if (*(*tab)->buffer.page.title == '\0')

return (*tab)->hist_cur->h;

*descr = (*tab)->hist_cur->h;

return (*tab)->buffer.page.title;

}

/*

* Provide completions for link-select.

*/

const char *

compl_ls(void **data, void **ret, const char **descr)

{

struct line **line = (struct line **)data;

struct line *l;

const char *link;

l = *line;

while (l != NULL && l->type != LINE_LINK)

l = TAILQ_NEXT(l, lines);

/* end of buffer */

if (l == NULL)

return NULL;

if ((link = l->line) == NULL) {

link = l->alt;

*descr = NULL;

} else

*descr = l->alt;

*ret = l;

*line = TAILQ_NEXT(l, lines);

return link;

}

/*

* Provide completions for swiper.

*/

const char *

compl_swiper(void **data, void **ret, const char **descr)

{

struct line **line = (struct line **)data;

const char *text;

while (*line != NULL && (*line)->line == NULL)

*line = TAILQ_NEXT(*line, lines);

if (*line == NULL)

return NULL;

text = (*line)->line;

*ret = *line;

*line = TAILQ_NEXT(*line, lines);

return text;

}

/*

* Provide completions for toc

*/

const char *

compl_toc(void **data, void **ret, const char **descr)

{

struct line **line = (struct line **)data;

struct line *l;

const char *text;

l = *line;

while (l != NULL && (l->line == NULL ||

(l->type != LINE_TITLE_1 &&

l->type != LINE_TITLE_2 &&

l->type != LINE_TITLE_3)))

l = TAILQ_NEXT(l, lines);

/* end of buffer */

if (l == NULL)

return NULL;

text = l->line;

*ret = l;

*line = TAILQ_NEXT(l, lines);

return text;

}