tmux/mode-tree.c

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/* $OpenBSD$ */
/*
* Copyright (c) 2017 Nicholas Marriott <nicholas.marriott@gmail.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 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"
struct mode_tree_item;
TAILQ_HEAD(mode_tree_list, mode_tree_item);
struct mode_tree_data {
int dead;
u_int references;
struct window_pane *wp;
void *modedata;
const char **sort_list;
u_int sort_size;
u_int sort_type;
void (*buildcb)(void *, u_int, uint64_t *,
const char *);
struct screen *(*drawcb)(void *, void *, u_int, u_int);
int (*searchcb)(void*, void *, const char *);
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;
};
struct mode_tree_item {
struct mode_tree_item *parent;
void *itemdata;
u_int line;
uint64_t tag;
const char *name;
const char *text;
int expanded;
int tagged;
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;
};
static void mode_tree_free_items(struct mode_tree_list *);
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(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);
}
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);
}
}
static void
mode_tree_set_current(struct mode_tree_data *mtd, uint64_t tag)
{
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) {
mtd->current = i;
if (mtd->current > mtd->height - 1)
mtd->offset = mtd->current - mtd->height + 1;
else
mtd->offset = 0;
} else {
mtd->current = 0;
mtd->offset = 0;
}
}
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--;
}
}
void
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 {
mtd->current++;
if (mtd->current > mtd->offset + mtd->height - 1)
mtd->offset++;
}
}
void *
mode_tree_get_current(struct mode_tree_data *mtd)
{
return (mtd->line_list[mtd->current].item->itemdata);
}
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, void (*cb)(void *, void *,
struct client *, key_code), 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,
void (*buildcb)(void *, u_int, uint64_t *, const char *),
struct screen *(*drawcb)(void *, void *, u_int, u_int),
int (*searchcb)(void *, void *, const char *), void *modedata,
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->sort_list = sort_list;
mtd->sort_size = sort_size;
mtd->sort_type = 0;
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_type = i;
}
}
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;
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_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 = 0;
TAILQ_CONCAT(&mtd->saved, &mtd->children, entry);
TAILQ_INIT(&mtd->children);
mtd->buildcb(mtd->modedata, mtd->sort_type, &tag, mtd->filter);
if (TAILQ_EMPTY(&mtd->children))
mtd->buildcb(mtd->modedata, mtd->sort_type, &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);
mode_tree_set_current(mtd, tag);
mtd->width = screen_size_x(s);
if (mtd->preview) {
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);
} 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)
{
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);
mti = xcalloc(1, sizeof *mti);
mti->parent = parent;
mti->itemdata = itemdata;
mti->tag = tag;
mti->name = xstrdup(name);
mti->text = xstrdup(text);
saved = mode_tree_find_item(&mtd->saved, tag);
if (saved != NULL) {
if (parent == NULL || (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_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, *box = NULL;
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;
char *text, *start, key[7];
const char *tag, *symbol;
size_t size;
int keylen;
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");
w = mtd->width;
h = mtd->height;
screen_write_start(&ctx, NULL, s);
screen_write_clearscreen(&ctx, 8);
if (mtd->line_size > 10)
keylen = 6;
else
keylen = 4;
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);
if (i < 10)
snprintf(key, sizeof key, "(%c) ", '0' + i);
else if (i < 36)
snprintf(key, sizeof key, "(M-%c)", 'a' + (i - 10));
else
*key = '\0';
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);
free(start);
if (mti->tagged) {
gc.attr ^= GRID_ATTR_BRIGHT;
gc0.attr ^= GRID_ATTR_BRIGHT;
}
if (i != mtd->current) {
screen_write_nputs(&ctx, w, &gc0, "%s", text);
screen_write_clearendofline(&ctx, 8);
} else {
screen_write_nputs(&ctx, w, &gc, "%s", text);
screen_write_clearendofline(&ctx, gc.bg);
}
free(text);
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) {
screen_write_stop(&ctx);
return;
}
line = &mtd->line_list[mtd->current];
mti = line->item;
screen_write_cursormove(&ctx, 0, h);
screen_write_box(&ctx, w, sy - h);
xasprintf(&text, " %s (sort: %s) ", mti->name,
mtd->sort_list[mtd->sort_type]);
if (w - 2 >= strlen(text)) {
screen_write_cursormove(&ctx, 1, h);
screen_write_puts(&ctx, &gc0, "%s", text);
}
free(text);
box_x = w - 4;
box_y = sy - h - 2;
if (box_x != 0 && box_y != 0)
box = mtd->drawcb(mtd->modedata, mti->itemdata, box_x, box_y);
if (box != NULL) {
screen_write_cursormove(&ctx, 2, h + 1);
screen_write_copy(&ctx, box, 0, 0, box_x, box_y, NULL, NULL);
screen_free(box);
}
screen_write_stop(&ctx);
}
static struct mode_tree_item *
mode_tree_search_for(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;
mti = mode_tree_search_for(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);
}
int
mode_tree_key(struct mode_tree_data *mtd, struct client *c, key_code *key,
struct mouse_event *m)
{
struct mode_tree_line *line;
struct mode_tree_item *current, *parent;
u_int i, x, y;
int choice;
key_code tmp;
if (*key == KEYC_MOUSEDOWN1_PANE) {
if (cmd_mouse_at(mtd->wp, m, &x, &y, 0) != 0) {
*key = KEYC_NONE;
return (0);
}
if (x > mtd->width || y > mtd->height) {
*key = KEYC_NONE;
return (0);
}
if (mtd->offset + y < mtd->line_size) {
mtd->current = mtd->offset + y;
*key = '\r';
return (0);
}
}
line = &mtd->line_list[mtd->current];
current = line->item;
choice = -1;
if (*key >= '0' && *key <= '9')
choice = (*key) - '0';
else if (((*key) & KEYC_MASK_MOD) == KEYC_ESCAPE) {
tmp = (*key) & KEYC_MASK_KEY;
if (tmp >= 'a' && tmp <= 'z')
choice = 10 + (tmp - 'a');
}
if (choice != -1) {
if ((u_int)choice > mtd->line_size - 1) {
*key = KEYC_NONE;
return (0);
}
mtd->current = choice;
*key = '\r';
return (0);
}
switch (*key) {
case 'q':
case '\033': /* Escape */
return (1);
case KEYC_UP:
case 'k':
case KEYC_WHEELUP_PANE:
case '\020': /* C-p */
mode_tree_up(mtd, 1);
break;
case KEYC_DOWN:
case 'j':
case KEYC_WHEELDOWN_PANE:
case '\016': /* C-n */
mode_tree_down(mtd, 1);
break;
case KEYC_PPAGE:
case '\002': /* C-b */
for (i = 0; i < mtd->height; i++) {
if (mtd->current == 0)
break;
mode_tree_up(mtd, 1);
}
break;
case KEYC_NPAGE:
case '\006': /* C-f */
for (i = 0; i < mtd->height; i++) {
if (mtd->current == mtd->line_size - 1)
break;
mode_tree_down(mtd, 1);
}
break;
case KEYC_HOME:
mtd->current = 0;
mtd->offset = 0;
break;
case KEYC_END:
mtd->current = mtd->line_size - 1;
if (mtd->current > mtd->height - 1)
mtd->offset = mtd->current - mtd->height + 1;
else
mtd->offset = 0;
break;
case 't':
/*
* Do not allow parents and children to both be tagged: untag
* all parents and children of current.
*/
if (!current->tagged) {
parent = current->parent;
while (parent != NULL) {
parent->tagged = 0;
parent = parent->parent;
}
mode_tree_clear_tagged(&current->children);
current->tagged = 1;
} else
current->tagged = 0;
mode_tree_down(mtd, 0);
break;
case 'T':
for (i = 0; i < mtd->line_size; i++)
mtd->line_list[i].item->tagged = 0;
break;
case '\024': /* C-t */
for (i = 0; i < mtd->line_size; i++) {
if (mtd->line_list[i].item->parent == NULL)
mtd->line_list[i].item->tagged = 1;
else
mtd->line_list[i].item->tagged = 0;
}
break;
case 'O':
mtd->sort_type++;
if (mtd->sort_type == mtd->sort_size)
mtd->sort_type = 0;
mode_tree_build(mtd);
break;
case KEYC_LEFT:
2017-10-25 12:13:20 +00:00
case 'h':
case '-':
if (line->flat || !current->expanded)
current = current->parent;
if (current == NULL)
mode_tree_up(mtd, 0);
else {
current->expanded = 0;
mtd->current = current->line;
mode_tree_build(mtd);
}
break;
case KEYC_RIGHT:
2017-10-25 12:13:20 +00:00
case 'l':
case '+':
if (line->flat || current->expanded)
mode_tree_down(mtd, 0);
else if (!line->flat) {
current->expanded = 1;
mode_tree_build(mtd);
}
break;
case '\023': /* C-s */
mtd->references++;
status_prompt_set(c, "(search) ", "",
mode_tree_search_callback, mode_tree_search_free, mtd,
PROMPT_NOFORMAT);
break;
case 'n':
mode_tree_search_set(mtd);
break;
case 'f':
mtd->references++;
status_prompt_set(c, "(filter) ", mtd->filter,
mode_tree_filter_callback, mode_tree_filter_free, mtd,
PROMPT_NOFORMAT);
break;
case 'v':
mtd->preview = !mtd->preview;
mode_tree_build(mtd);
if (mtd->preview)
mode_tree_check_selected(mtd);
break;
}
return (0);
}
void
mode_tree_run_command(struct client *c, struct cmd_find_state *fs,
const char *template, const char *name)
{
struct cmdq_item *new_item;
struct cmd_list *cmdlist;
char *command, *cause;
command = cmd_template_replace(template, name, 1);
if (command == NULL || *command == '\0') {
free(command);
return;
}
cmdlist = cmd_string_parse(command, NULL, 0, &cause);
if (cmdlist == NULL) {
if (cause != NULL && c != NULL) {
*cause = toupper((u_char)*cause);
status_message_set(c, "%s", cause);
}
free(cause);
} else {
new_item = cmdq_get_command(cmdlist, fs, NULL, 0);
cmdq_append(c, new_item);
cmd_list_free(cmdlist);
}
free(command);
}