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mode-tree.c
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/* $OpenBSD$ */
/*
* Copyright (c) 2017 Nicholas Marriott <[email protected]>
*
* 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 MIND, 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 <sys/types.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "tmux.h"
enum mode_tree_search_dir {
MODE_TREE_SEARCH_FORWARD,
MODE_TREE_SEARCH_BACKWARD
};
struct mode_tree_item;
TAILQ_HEAD(mode_tree_list, mode_tree_item);
struct mode_tree_data {
int dead;
u_int references;
int zoomed;
struct window_pane *wp;
void *modedata;
const struct menu_item *menu;
const char **sort_list;
u_int sort_size;
struct mode_tree_sort_criteria sort_crit;
mode_tree_build_cb buildcb;
mode_tree_draw_cb drawcb;
mode_tree_search_cb searchcb;
mode_tree_menu_cb menucb;
mode_tree_height_cb heightcb;
mode_tree_key_cb keycb;
struct mode_tree_list children;
struct mode_tree_list saved;
struct mode_tree_line *line_list;
u_int line_size;
u_int depth;
u_int width;
u_int height;
u_int offset;
u_int current;
struct screen screen;
int preview;
char *search;
char *filter;
int no_matches;
enum mode_tree_search_dir search_dir;
};
struct mode_tree_item {
struct mode_tree_item *parent;
void *itemdata;
u_int line;
key_code key;
const char *keystr;
size_t keylen;
uint64_t tag;
const char *name;
const char *text;
int expanded;
int tagged;
int draw_as_parent;
int no_tag;
struct mode_tree_list children;
TAILQ_ENTRY(mode_tree_item) entry;
};
struct mode_tree_line {
struct mode_tree_item *item;
u_int depth;
int last;
int flat;
};
struct mode_tree_menu {
struct mode_tree_data *data;
struct client *c;
u_int line;
};
static void mode_tree_free_items(struct mode_tree_list *);
static const struct menu_item mode_tree_menu_items[] = {
{ "Scroll Left", '<', NULL },
{ "Scroll Right", '>', NULL },
{ "", KEYC_NONE, NULL },
{ "Cancel", 'q', NULL },
{ NULL, KEYC_NONE, NULL }
};
static struct mode_tree_item *
mode_tree_find_item(struct mode_tree_list *mtl, uint64_t tag)
{
struct mode_tree_item *mti, *child;
TAILQ_FOREACH(mti, mtl, entry) {
if (mti->tag == tag)
return (mti);
child = mode_tree_find_item(&mti->children, tag);
if (child != NULL)
return (child);
}
return (NULL);
}
static void
mode_tree_free_item(struct mode_tree_item *mti)
{
mode_tree_free_items(&mti->children);
free((void *)mti->name);
free((void *)mti->text);
free((void *)mti->keystr);
free(mti);
}
static void
mode_tree_free_items(struct mode_tree_list *mtl)
{
struct mode_tree_item *mti, *mti1;
TAILQ_FOREACH_SAFE(mti, mtl, entry, mti1) {
TAILQ_REMOVE(mtl, mti, entry);
mode_tree_free_item(mti);
}
}
static void
mode_tree_check_selected(struct mode_tree_data *mtd)
{
/*
* If the current line would now be off screen reset the offset to the
* last visible line.
*/
if (mtd->current > mtd->height - 1)
mtd->offset = mtd->current - mtd->height + 1;
}
static void
mode_tree_clear_lines(struct mode_tree_data *mtd)
{
free(mtd->line_list);
mtd->line_list = NULL;
mtd->line_size = 0;
}
static void
mode_tree_build_lines(struct mode_tree_data *mtd,
struct mode_tree_list *mtl, u_int depth)
{
struct mode_tree_item *mti;
struct mode_tree_line *line;
u_int i;
int flat = 1;
mtd->depth = depth;
TAILQ_FOREACH(mti, mtl, entry) {
mtd->line_list = xreallocarray(mtd->line_list,
mtd->line_size + 1, sizeof *mtd->line_list);
line = &mtd->line_list[mtd->line_size++];
line->item = mti;
line->depth = depth;
line->last = (mti == TAILQ_LAST(mtl, mode_tree_list));
mti->line = (mtd->line_size - 1);
if (!TAILQ_EMPTY(&mti->children))
flat = 0;
if (mti->expanded)
mode_tree_build_lines(mtd, &mti->children, depth + 1);
if (mtd->keycb != NULL) {
mti->key = mtd->keycb(mtd->modedata, mti->itemdata,
mti->line);
if (mti->key == KEYC_UNKNOWN)
mti->key = KEYC_NONE;
} else if (mti->line < 10)
mti->key = '0' + mti->line;
else if (mti->line < 36)
mti->key = KEYC_META|('a' + mti->line - 10);
else
mti->key = KEYC_NONE;
if (mti->key != KEYC_NONE) {
mti->keystr = xstrdup(key_string_lookup_key(mti->key,
0));
mti->keylen = strlen(mti->keystr);
} else {
mti->keystr = NULL;
mti->keylen = 0;
}
}
TAILQ_FOREACH(mti, mtl, entry) {
for (i = 0; i < mtd->line_size; i++) {
line = &mtd->line_list[i];
if (line->item == mti)
line->flat = flat;
}
}
}
static void
mode_tree_clear_tagged(struct mode_tree_list *mtl)
{
struct mode_tree_item *mti;
TAILQ_FOREACH(mti, mtl, entry) {
mti->tagged = 0;
mode_tree_clear_tagged(&mti->children);
}
}
void
mode_tree_up(struct mode_tree_data *mtd, int wrap)
{
if (mtd->current == 0) {
if (wrap) {
mtd->current = mtd->line_size - 1;
if (mtd->line_size >= mtd->height)
mtd->offset = mtd->line_size - mtd->height;
}
} else {
mtd->current--;
if (mtd->current < mtd->offset)
mtd->offset--;
}
}
int
mode_tree_down(struct mode_tree_data *mtd, int wrap)
{
if (mtd->current == mtd->line_size - 1) {
if (wrap) {
mtd->current = 0;
mtd->offset = 0;
} else
return (0);
} else {
mtd->current++;
if (mtd->current > mtd->offset + mtd->height - 1)
mtd->offset++;
}
return (1);
}
void *
mode_tree_get_current(struct mode_tree_data *mtd)
{
return (mtd->line_list[mtd->current].item->itemdata);
}
const char *
mode_tree_get_current_name(struct mode_tree_data *mtd)
{
return (mtd->line_list[mtd->current].item->name);
}
void
mode_tree_expand_current(struct mode_tree_data *mtd)
{
if (!mtd->line_list[mtd->current].item->expanded) {
mtd->line_list[mtd->current].item->expanded = 1;
mode_tree_build(mtd);
}
}
void
mode_tree_collapse_current(struct mode_tree_data *mtd)
{
if (mtd->line_list[mtd->current].item->expanded) {
mtd->line_list[mtd->current].item->expanded = 0;
mode_tree_build(mtd);
}
}
static int
mode_tree_get_tag(struct mode_tree_data *mtd, uint64_t tag, u_int *found)
{
u_int i;
for (i = 0; i < mtd->line_size; i++) {
if (mtd->line_list[i].item->tag == tag)
break;
}
if (i != mtd->line_size) {
*found = i;
return (1);
}
return (0);
}
void
mode_tree_expand(struct mode_tree_data *mtd, uint64_t tag)
{
u_int found;
if (!mode_tree_get_tag(mtd, tag, &found))
return;
if (!mtd->line_list[found].item->expanded) {
mtd->line_list[found].item->expanded = 1;
mode_tree_build(mtd);
}
}
int
mode_tree_set_current(struct mode_tree_data *mtd, uint64_t tag)
{
u_int found;
if (mode_tree_get_tag(mtd, tag, &found)) {
mtd->current = found;
if (mtd->current > mtd->height - 1)
mtd->offset = mtd->current - mtd->height + 1;
else
mtd->offset = 0;
return (1);
}
mtd->current = 0;
mtd->offset = 0;
return (0);
}
u_int
mode_tree_count_tagged(struct mode_tree_data *mtd)
{
struct mode_tree_item *mti;
u_int i, tagged;
tagged = 0;
for (i = 0; i < mtd->line_size; i++) {
mti = mtd->line_list[i].item;
if (mti->tagged)
tagged++;
}
return (tagged);
}
void
mode_tree_each_tagged(struct mode_tree_data *mtd, mode_tree_each_cb cb,
struct client *c, key_code key, int current)
{
struct mode_tree_item *mti;
u_int i;
int fired;
fired = 0;
for (i = 0; i < mtd->line_size; i++) {
mti = mtd->line_list[i].item;
if (mti->tagged) {
fired = 1;
cb(mtd->modedata, mti->itemdata, c, key);
}
}
if (!fired && current) {
mti = mtd->line_list[mtd->current].item;
cb(mtd->modedata, mti->itemdata, c, key);
}
}
struct mode_tree_data *
mode_tree_start(struct window_pane *wp, struct args *args,
mode_tree_build_cb buildcb, mode_tree_draw_cb drawcb,
mode_tree_search_cb searchcb, mode_tree_menu_cb menucb,
mode_tree_height_cb heightcb, mode_tree_key_cb keycb, void *modedata,
const struct menu_item *menu, const char **sort_list, u_int sort_size,
struct screen **s)
{
struct mode_tree_data *mtd;
const char *sort;
u_int i;
mtd = xcalloc(1, sizeof *mtd);
mtd->references = 1;
mtd->wp = wp;
mtd->modedata = modedata;
mtd->menu = menu;
mtd->sort_list = sort_list;
mtd->sort_size = sort_size;
mtd->preview = !args_has(args, 'N');
sort = args_get(args, 'O');
if (sort != NULL) {
for (i = 0; i < sort_size; i++) {
if (strcasecmp(sort, sort_list[i]) == 0)
mtd->sort_crit.field = i;
}
}
mtd->sort_crit.reversed = args_has(args, 'r');
if (args_has(args, 'f'))
mtd->filter = xstrdup(args_get(args, 'f'));
else
mtd->filter = NULL;
mtd->buildcb = buildcb;
mtd->drawcb = drawcb;
mtd->searchcb = searchcb;
mtd->menucb = menucb;
mtd->heightcb = heightcb;
mtd->keycb = keycb;
TAILQ_INIT(&mtd->children);
*s = &mtd->screen;
screen_init(*s, screen_size_x(&wp->base), screen_size_y(&wp->base), 0);
(*s)->mode &= ~MODE_CURSOR;
return (mtd);
}
void
mode_tree_zoom(struct mode_tree_data *mtd, struct args *args)
{
struct window_pane *wp = mtd->wp;
if (args_has(args, 'Z')) {
mtd->zoomed = (wp->window->flags & WINDOW_ZOOMED);
if (!mtd->zoomed && window_zoom(wp) == 0)
server_redraw_window(wp->window);
} else
mtd->zoomed = -1;
}
static void
mode_tree_set_height(struct mode_tree_data *mtd)
{
struct screen *s = &mtd->screen;
u_int height;
if (mtd->heightcb != NULL) {
height = mtd->heightcb(mtd, screen_size_y(s));
if (height < screen_size_y(s))
mtd->height = screen_size_y(s) - height;
} else {
mtd->height = (screen_size_y(s) / 3) * 2;
if (mtd->height > mtd->line_size)
mtd->height = screen_size_y(s) / 2;
}
if (mtd->height < 10)
mtd->height = screen_size_y(s);
if (screen_size_y(s) - mtd->height < 2)
mtd->height = screen_size_y(s);
}
void
mode_tree_build(struct mode_tree_data *mtd)
{
struct screen *s = &mtd->screen;
uint64_t tag;
if (mtd->line_list != NULL)
tag = mtd->line_list[mtd->current].item->tag;
else
tag = UINT64_MAX;
TAILQ_CONCAT(&mtd->saved, &mtd->children, entry);
TAILQ_INIT(&mtd->children);
mtd->buildcb(mtd->modedata, &mtd->sort_crit, &tag, mtd->filter);
mtd->no_matches = TAILQ_EMPTY(&mtd->children);
if (mtd->no_matches)
mtd->buildcb(mtd->modedata, &mtd->sort_crit, &tag, NULL);
mode_tree_free_items(&mtd->saved);
TAILQ_INIT(&mtd->saved);
mode_tree_clear_lines(mtd);
mode_tree_build_lines(mtd, &mtd->children, 0);
if (mtd->line_list != NULL && tag == UINT64_MAX)
tag = mtd->line_list[mtd->current].item->tag;
mode_tree_set_current(mtd, tag);
mtd->width = screen_size_x(s);
if (mtd->preview)
mode_tree_set_height(mtd);
else
mtd->height = screen_size_y(s);
mode_tree_check_selected(mtd);
}
static void
mode_tree_remove_ref(struct mode_tree_data *mtd)
{
if (--mtd->references == 0)
free(mtd);
}
void
mode_tree_free(struct mode_tree_data *mtd)
{
struct window_pane *wp = mtd->wp;
if (mtd->zoomed == 0)
server_unzoom_window(wp->window);
mode_tree_free_items(&mtd->children);
mode_tree_clear_lines(mtd);
screen_free(&mtd->screen);
free(mtd->search);
free(mtd->filter);
mtd->dead = 1;
mode_tree_remove_ref(mtd);
}
void
mode_tree_resize(struct mode_tree_data *mtd, u_int sx, u_int sy)
{
struct screen *s = &mtd->screen;
screen_resize(s, sx, sy, 0);
mode_tree_build(mtd);
mode_tree_draw(mtd);
mtd->wp->flags |= PANE_REDRAW;
}
struct mode_tree_item *
mode_tree_add(struct mode_tree_data *mtd, struct mode_tree_item *parent,
void *itemdata, uint64_t tag, const char *name, const char *text,
int expanded)
{
struct mode_tree_item *mti, *saved;
log_debug("%s: %llu, %s %s", __func__, (unsigned long long)tag,
name, (text == NULL ? "" : text));
mti = xcalloc(1, sizeof *mti);
mti->parent = parent;
mti->itemdata = itemdata;
mti->tag = tag;
mti->name = xstrdup(name);
if (text != NULL)
mti->text = xstrdup(text);
saved = mode_tree_find_item(&mtd->saved, tag);
if (saved != NULL) {
if (parent == NULL || parent->expanded)
mti->tagged = saved->tagged;
mti->expanded = saved->expanded;
} else if (expanded == -1)
mti->expanded = 1;
else
mti->expanded = expanded;
TAILQ_INIT(&mti->children);
if (parent != NULL)
TAILQ_INSERT_TAIL(&parent->children, mti, entry);
else
TAILQ_INSERT_TAIL(&mtd->children, mti, entry);
return (mti);
}
void
mode_tree_draw_as_parent(struct mode_tree_item *mti)
{
mti->draw_as_parent = 1;
}
void
mode_tree_no_tag(struct mode_tree_item *mti)
{
mti->no_tag = 1;
}
void
mode_tree_remove(struct mode_tree_data *mtd, struct mode_tree_item *mti)
{
struct mode_tree_item *parent = mti->parent;
if (parent != NULL)
TAILQ_REMOVE(&parent->children, mti, entry);
else
TAILQ_REMOVE(&mtd->children, mti, entry);
mode_tree_free_item(mti);
}
void
mode_tree_draw(struct mode_tree_data *mtd)
{
struct window_pane *wp = mtd->wp;
struct screen *s = &mtd->screen;
struct mode_tree_line *line;
struct mode_tree_item *mti;
struct options *oo = wp->window->options;
struct screen_write_ctx ctx;
struct grid_cell gc0, gc;
u_int w, h, i, j, sy, box_x, box_y, width;
char *text, *start, *key;
const char *tag, *symbol;
size_t size, n;
int keylen, pad;
if (mtd->line_size == 0)
return;
memcpy(&gc0, &grid_default_cell, sizeof gc0);
memcpy(&gc, &grid_default_cell, sizeof gc);
style_apply(&gc, oo, "mode-style", NULL);
w = mtd->width;
h = mtd->height;
screen_write_start(&ctx, s);
screen_write_clearscreen(&ctx, 8);
keylen = 0;
for (i = 0; i < mtd->line_size; i++) {
mti = mtd->line_list[i].item;
if (mti->key == KEYC_NONE)
continue;
if ((int)mti->keylen + 3 > keylen)
keylen = mti->keylen + 3;
}
for (i = 0; i < mtd->line_size; i++) {
if (i < mtd->offset)
continue;
if (i > mtd->offset + h - 1)
break;
line = &mtd->line_list[i];
mti = line->item;
screen_write_cursormove(&ctx, 0, i - mtd->offset, 0);
pad = keylen - 2 - mti->keylen;
if (mti->key != KEYC_NONE)
xasprintf(&key, "(%s)%*s", mti->keystr, pad, "");
else
key = xstrdup("");
if (line->flat)
symbol = "";
else if (TAILQ_EMPTY(&mti->children))
symbol = " ";
else if (mti->expanded)
symbol = "- ";
else
symbol = "+ ";
if (line->depth == 0)
start = xstrdup(symbol);
else {
size = (4 * line->depth) + 32;
start = xcalloc(1, size);
for (j = 1; j < line->depth; j++) {
if (mti->parent != NULL &&
mtd->line_list[mti->parent->line].last)
strlcat(start, " ", size);
else
strlcat(start, "\001x\001 ", size);
}
if (line->last)
strlcat(start, "\001mq\001> ", size);
else
strlcat(start, "\001tq\001> ", size);
strlcat(start, symbol, size);
}
if (mti->tagged)
tag = "*";
else
tag = "";
xasprintf(&text, "%-*s%s%s%s%s", keylen, key, start, mti->name,
tag, (mti->text != NULL) ? ": " : "" );
width = utf8_cstrwidth(text);
if (width > w)
width = w;
free(start);
if (mti->tagged) {
gc.attr ^= GRID_ATTR_BRIGHT;
gc0.attr ^= GRID_ATTR_BRIGHT;
}
if (i != mtd->current) {
screen_write_clearendofline(&ctx, 8);
screen_write_nputs(&ctx, w, &gc0, "%s", text);
if (mti->text != NULL) {
format_draw(&ctx, &gc0, w - width, mti->text,
NULL, 0);
}
} else {
screen_write_clearendofline(&ctx, gc.bg);
screen_write_nputs(&ctx, w, &gc, "%s", text);
if (mti->text != NULL) {
format_draw(&ctx, &gc, w - width, mti->text,
NULL, 0);
}
}
free(text);
free(key);
if (mti->tagged) {
gc.attr ^= GRID_ATTR_BRIGHT;
gc0.attr ^= GRID_ATTR_BRIGHT;
}
}
sy = screen_size_y(s);
if (!mtd->preview || sy <= 4 || h <= 4 || sy - h <= 4 || w <= 4)
goto done;
line = &mtd->line_list[mtd->current];
mti = line->item;
if (mti->draw_as_parent)
mti = mti->parent;
screen_write_cursormove(&ctx, 0, h, 0);
screen_write_box(&ctx, w, sy - h, BOX_LINES_DEFAULT, NULL, NULL);
if (mtd->sort_list != NULL) {
xasprintf(&text, " %s (sort: %s%s)", mti->name,
mtd->sort_list[mtd->sort_crit.field],
mtd->sort_crit.reversed ? ", reversed" : "");
} else
xasprintf(&text, " %s", mti->name);
if (w - 2 >= strlen(text)) {
screen_write_cursormove(&ctx, 1, h, 0);
screen_write_puts(&ctx, &gc0, "%s", text);
if (mtd->no_matches)
n = (sizeof "no matches") - 1;
else
n = (sizeof "active") - 1;
if (mtd->filter != NULL && w - 2 >= strlen(text) + 10 + n + 2) {
screen_write_puts(&ctx, &gc0, " (filter: ");
if (mtd->no_matches)
screen_write_puts(&ctx, &gc, "no matches");
else
screen_write_puts(&ctx, &gc0, "active");
screen_write_puts(&ctx, &gc0, ") ");
} else
screen_write_puts(&ctx, &gc0, " ");
}
free(text);
box_x = w - 4;
box_y = sy - h - 2;
if (box_x != 0 && box_y != 0) {
screen_write_cursormove(&ctx, 2, h + 1, 0);
mtd->drawcb(mtd->modedata, mti->itemdata, &ctx, box_x, box_y);
}
done:
screen_write_cursormove(&ctx, 0, mtd->current - mtd->offset, 0);
screen_write_stop(&ctx);
}
static struct mode_tree_item *
mode_tree_search_backward(struct mode_tree_data *mtd)
{
struct mode_tree_item *mti, *last, *prev;
if (mtd->search == NULL)
return (NULL);
mti = last = mtd->line_list[mtd->current].item;
for (;;) {
if ((prev = TAILQ_PREV(mti, mode_tree_list, entry)) != NULL) {
/* Point to the last child in the previous subtree. */
while (!TAILQ_EMPTY(&prev->children))
prev = TAILQ_LAST(&prev->children, mode_tree_list);
mti = prev;
} else {
/* If prev is NULL, jump to the parent. */
mti = mti->parent;
}
if (mti == NULL) {
/* Point to the last child in the last root subtree. */
prev = TAILQ_LAST(&mtd->children, mode_tree_list);
while (!TAILQ_EMPTY(&prev->children))
prev = TAILQ_LAST(&prev->children, mode_tree_list);
mti = prev;
}
if (mti == last)
break;
if (mtd->searchcb == NULL) {
if (strstr(mti->name, mtd->search) != NULL)
return (mti);
continue;
}
if (mtd->searchcb(mtd->modedata, mti->itemdata, mtd->search))
return (mti);
}
return (NULL);
}
static struct mode_tree_item *
mode_tree_search_forward(struct mode_tree_data *mtd)
{
struct mode_tree_item *mti, *last, *next;
if (mtd->search == NULL)
return (NULL);
mti = last = mtd->line_list[mtd->current].item;
for (;;) {
if (!TAILQ_EMPTY(&mti->children))
mti = TAILQ_FIRST(&mti->children);
else if ((next = TAILQ_NEXT(mti, entry)) != NULL)
mti = next;
else {
for (;;) {
mti = mti->parent;
if (mti == NULL)
break;
if ((next = TAILQ_NEXT(mti, entry)) != NULL) {
mti = next;
break;
}
}
}
if (mti == NULL)
mti = TAILQ_FIRST(&mtd->children);
if (mti == last)
break;
if (mtd->searchcb == NULL) {
if (strstr(mti->name, mtd->search) != NULL)
return (mti);
continue;
}
if (mtd->searchcb(mtd->modedata, mti->itemdata, mtd->search))
return (mti);
}
return (NULL);
}
static void
mode_tree_search_set(struct mode_tree_data *mtd)
{
struct mode_tree_item *mti, *loop;
uint64_t tag;
if (mtd->search_dir == MODE_TREE_SEARCH_FORWARD)
mti = mode_tree_search_forward(mtd);
else
mti = mode_tree_search_backward(mtd);
if (mti == NULL)
return;
tag = mti->tag;
loop = mti->parent;
while (loop != NULL) {
loop->expanded = 1;
loop = loop->parent;
}
mode_tree_build(mtd);
mode_tree_set_current(mtd, tag);
mode_tree_draw(mtd);
mtd->wp->flags |= PANE_REDRAW;
}
static int
mode_tree_search_callback(__unused struct client *c, void *data, const char *s,
__unused int done)
{
struct mode_tree_data *mtd = data;
if (mtd->dead)
return (0);
free(mtd->search);
if (s == NULL || *s == '\0') {
mtd->search = NULL;
return (0);
}
mtd->search = xstrdup(s);
mode_tree_search_set(mtd);
return (0);
}
static void
mode_tree_search_free(void *data)
{
mode_tree_remove_ref(data);
}
static int
mode_tree_filter_callback(__unused struct client *c, void *data, const char *s,
__unused int done)
{
struct mode_tree_data *mtd = data;
if (mtd->dead)
return (0);
if (mtd->filter != NULL)
free(mtd->filter);
if (s == NULL || *s == '\0')
mtd->filter = NULL;
else
mtd->filter = xstrdup(s);
mode_tree_build(mtd);
mode_tree_draw(mtd);
mtd->wp->flags |= PANE_REDRAW;
return (0);
}
static void
mode_tree_filter_free(void *data)
{
mode_tree_remove_ref(data);
}
static void
mode_tree_menu_callback(__unused struct menu *menu, __unused u_int idx,
key_code key, void *data)
{
struct mode_tree_menu *mtm = data;
struct mode_tree_data *mtd = mtm->data;
if (mtd->dead || key == KEYC_NONE)
goto out;
if (mtm->line >= mtd->line_size)
goto out;
mtd->current = mtm->line;
mtd->menucb(mtd->modedata, mtm->c, key);
out:
mode_tree_remove_ref(mtd);
free(mtm);
}
static void
mode_tree_display_menu(struct mode_tree_data *mtd, struct client *c, u_int x,
u_int y, int outside)
{
struct mode_tree_item *mti;
struct menu *menu;
const struct menu_item *items;
struct mode_tree_menu *mtm;
char *title;
u_int line;
if (mtd->offset + y > mtd->line_size - 1)
line = mtd->current;
else
line = mtd->offset + y;
mti = mtd->line_list[line].item;
if (!outside) {
items = mtd->menu;
xasprintf(&title, "#[align=centre]%s", mti->name);
} else {