tmux/window-client.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 <sys/time.h>
#include <stdlib.h>
#include <string.h>
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#include <time.h>
#include "tmux.h"
static struct screen *window_client_init(struct window_mode_entry *,
struct cmd_find_state *, struct args *);
static void window_client_free(struct window_mode_entry *);
static void window_client_resize(struct window_mode_entry *, u_int,
u_int);
static void window_client_update(struct window_mode_entry *);
static void window_client_key(struct window_mode_entry *,
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struct client *, struct session *,
struct winlink *, key_code, struct mouse_event *);
#define WINDOW_CLIENT_DEFAULT_COMMAND "detach-client -t '%%'"
#define WINDOW_CLIENT_DEFAULT_FORMAT \
"#{t/p:client_activity}: session #{session_name}"
#define WINDOW_CLIENT_DEFAULT_KEY_FORMAT \
"#{?#{e|<:#{line},10}," \
"#{line}" \
"," \
"#{?#{e|<:#{line},36}," \
"M-#{a:#{e|+:97,#{e|-:#{line},10}}}" \
"," \
"" \
"}" \
"}"
static const struct menu_item window_client_menu_items[] = {
{ "Detach", 'd', NULL },
{ "Detach Tagged", 'D', NULL },
{ "", KEYC_NONE, NULL },
{ "Tag", 't', NULL },
{ "Tag All", '\024', NULL },
{ "Tag None", 'T', NULL },
{ "", KEYC_NONE, NULL },
{ "Cancel", 'q', NULL },
{ NULL, KEYC_NONE, NULL }
};
const struct window_mode window_client_mode = {
.name = "client-mode",
.default_format = WINDOW_CLIENT_DEFAULT_FORMAT,
.init = window_client_init,
.free = window_client_free,
.resize = window_client_resize,
.update = window_client_update,
.key = window_client_key,
};
enum window_client_sort_type {
WINDOW_CLIENT_BY_NAME,
WINDOW_CLIENT_BY_SIZE,
WINDOW_CLIENT_BY_CREATION_TIME,
WINDOW_CLIENT_BY_ACTIVITY_TIME,
};
static const char *window_client_sort_list[] = {
"name",
"size",
"creation",
"activity"
};
static struct mode_tree_sort_criteria *window_client_sort;
struct window_client_itemdata {
struct client *c;
};
struct window_client_modedata {
struct window_pane *wp;
struct mode_tree_data *data;
char *format;
char *key_format;
char *command;
struct window_client_itemdata **item_list;
u_int item_size;
};
static struct window_client_itemdata *
window_client_add_item(struct window_client_modedata *data)
{
struct window_client_itemdata *item;
data->item_list = xreallocarray(data->item_list, data->item_size + 1,
sizeof *data->item_list);
item = data->item_list[data->item_size++] = xcalloc(1, sizeof *item);
return (item);
}
static void
window_client_free_item(struct window_client_itemdata *item)
{
server_client_unref(item->c);
free(item);
}
static int
window_client_cmp(const void *a0, const void *b0)
{
const struct window_client_itemdata *const *a = a0;
const struct window_client_itemdata *const *b = b0;
const struct window_client_itemdata *itema = *a;
const struct window_client_itemdata *itemb = *b;
struct client *ca = itema->c;
struct client *cb = itemb->c;
int result = 0;
switch (window_client_sort->field) {
case WINDOW_CLIENT_BY_SIZE:
result = ca->tty.sx - cb->tty.sx;
if (result == 0)
result = ca->tty.sy - cb->tty.sy;
break;
case WINDOW_CLIENT_BY_CREATION_TIME:
if (timercmp(&ca->creation_time, &cb->creation_time, >))
result = -1;
else if (timercmp(&ca->creation_time, &cb->creation_time, <))
result = 1;
break;
case WINDOW_CLIENT_BY_ACTIVITY_TIME:
if (timercmp(&ca->activity_time, &cb->activity_time, >))
result = -1;
else if (timercmp(&ca->activity_time, &cb->activity_time, <))
result = 1;
break;
}
/* Use WINDOW_CLIENT_BY_NAME as default order and tie breaker. */
if (result == 0)
result = strcmp(ca->name, cb->name);
if (window_client_sort->reversed)
result = -result;
return (result);
}
static void
window_client_build(void *modedata, struct mode_tree_sort_criteria *sort_crit,
__unused uint64_t *tag, const char *filter)
{
struct window_client_modedata *data = modedata;
struct window_client_itemdata *item;
u_int i;
struct client *c;
char *text, *cp;
for (i = 0; i < data->item_size; i++)
window_client_free_item(data->item_list[i]);
free(data->item_list);
data->item_list = NULL;
data->item_size = 0;
TAILQ_FOREACH(c, &clients, entry) {
if (c->session == NULL || (c->flags & CLIENT_UNATTACHEDFLAGS))
continue;
item = window_client_add_item(data);
item->c = c;
c->references++;
}
window_client_sort = sort_crit;
qsort(data->item_list, data->item_size, sizeof *data->item_list,
window_client_cmp);
for (i = 0; i < data->item_size; i++) {
item = data->item_list[i];
c = item->c;
if (filter != NULL) {
cp = format_single(NULL, filter, c, NULL, NULL, NULL);
if (!format_true(cp)) {
free(cp);
continue;
}
free(cp);
}
text = format_single(NULL, data->format, c, NULL, NULL, NULL);
mode_tree_add(data->data, NULL, item, (uint64_t)c, c->name,
text, -1);
free(text);
}
}
static void
window_client_draw(__unused void *modedata, void *itemdata,
struct screen_write_ctx *ctx, u_int sx, u_int sy)
{
struct window_client_itemdata *item = itemdata;
struct client *c = item->c;
struct screen *s = ctx->s;
struct window_pane *wp;
u_int cx = s->cx, cy = s->cy, lines, at;
if (c->session == NULL || (c->flags & CLIENT_UNATTACHEDFLAGS))
return;
wp = c->session->curw->window->active;
lines = status_line_size(c);
if (lines >= sy)
lines = 0;
if (status_at_line(c) == 0)
at = lines;
else
at = 0;
screen_write_cursormove(ctx, cx, cy + at, 0);
screen_write_preview(ctx, &wp->base, sx, sy - 2 - lines);
if (at != 0)
screen_write_cursormove(ctx, cx, cy + 2, 0);
else
screen_write_cursormove(ctx, cx, cy + sy - 1 - lines, 0);
screen_write_hline(ctx, sx, 0, 0);
if (at != 0)
screen_write_cursormove(ctx, cx, cy, 0);
else
screen_write_cursormove(ctx, cx, cy + sy - lines, 0);
screen_write_fast_copy(ctx, &c->status.screen, 0, 0, sx, lines);
}
static void
window_client_menu(void *modedata, struct client *c, key_code key)
{
struct window_client_modedata *data = modedata;
struct window_pane *wp = data->wp;
struct window_mode_entry *wme;
wme = TAILQ_FIRST(&wp->modes);
if (wme == NULL || wme->data != modedata)
return;
window_client_key(wme, c, NULL, NULL, key, NULL);
}
static key_code
window_client_get_key(void *modedata, void *itemdata, u_int line)
{
struct window_client_modedata *data = modedata;
struct window_client_itemdata *item = itemdata;
struct format_tree *ft;
char *expanded;
key_code key;
ft = format_create(NULL, NULL, FORMAT_NONE, 0);
format_defaults(ft, item->c, NULL, 0, NULL);
format_add(ft, "line", "%u", line);
expanded = format_expand(ft, data->key_format);
key = key_string_lookup_string(expanded);
free(expanded);
format_free(ft);
return key;
}
static struct screen *
window_client_init(struct window_mode_entry *wme,
__unused struct cmd_find_state *fs, struct args *args)
{
struct window_pane *wp = wme->wp;
struct window_client_modedata *data;
struct screen *s;
wme->data = data = xcalloc(1, sizeof *data);
data->wp = wp;
if (args == NULL || !args_has(args, 'F'))
data->format = xstrdup(WINDOW_CLIENT_DEFAULT_FORMAT);
else
data->format = xstrdup(args_get(args, 'F'));
if (args == NULL || !args_has(args, 'K'))
data->key_format = xstrdup(WINDOW_CLIENT_DEFAULT_KEY_FORMAT);
else
data->key_format = xstrdup(args_get(args, 'K'));
if (args == NULL || args->argc == 0)
data->command = xstrdup(WINDOW_CLIENT_DEFAULT_COMMAND);
else
data->command = xstrdup(args->argv[0]);
data->data = mode_tree_start(wp, args, window_client_build,
window_client_draw, NULL, window_client_menu, NULL,
window_client_get_key, data, window_client_menu_items,
window_client_sort_list, nitems(window_client_sort_list), &s);
mode_tree_zoom(data->data, args);
mode_tree_build(data->data);
mode_tree_draw(data->data);
return (s);
}
static void
window_client_free(struct window_mode_entry *wme)
{
struct window_client_modedata *data = wme->data;
u_int i;
if (data == NULL)
return;
mode_tree_free(data->data);
for (i = 0; i < data->item_size; i++)
window_client_free_item(data->item_list[i]);
free(data->item_list);
free(data->format);
free(data->key_format);
free(data->command);
free(data);
}
static void
window_client_resize(struct window_mode_entry *wme, u_int sx, u_int sy)
{
struct window_client_modedata *data = wme->data;
mode_tree_resize(data->data, sx, sy);
}
static void
window_client_update(struct window_mode_entry *wme)
{
struct window_client_modedata *data = wme->data;
mode_tree_build(data->data);
mode_tree_draw(data->data);
data->wp->flags |= PANE_REDRAW;
}
static void
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window_client_do_detach(void *modedata, void *itemdata,
__unused struct client *c, key_code key)
{
struct window_client_modedata *data = modedata;
struct window_client_itemdata *item = itemdata;
if (item == mode_tree_get_current(data->data))
mode_tree_down(data->data, 0);
if (key == 'd' || key == 'D')
server_client_detach(item->c, MSG_DETACH);
else if (key == 'x' || key == 'X')
server_client_detach(item->c, MSG_DETACHKILL);
else if (key == 'z' || key == 'Z')
server_client_suspend(item->c);
}
static void
window_client_key(struct window_mode_entry *wme, struct client *c,
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__unused struct session *s, __unused struct winlink *wl, key_code key,
struct mouse_event *m)
{
struct window_pane *wp = wme->wp;
struct window_client_modedata *data = wme->data;
struct mode_tree_data *mtd = data->data;
struct window_client_itemdata *item;
int finished;
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finished = mode_tree_key(mtd, c, &key, m, NULL, NULL);
switch (key) {
case 'd':
case 'x':
case 'z':
item = mode_tree_get_current(mtd);
window_client_do_detach(data, item, c, key);
mode_tree_build(mtd);
break;
case 'D':
case 'X':
case 'Z':
mode_tree_each_tagged(mtd, window_client_do_detach, c, key, 0);
mode_tree_build(mtd);
break;
case '\r':
item = mode_tree_get_current(mtd);
mode_tree_run_command(c, NULL, data->command, item->c->ttyname);
finished = 1;
break;
}
if (finished || server_client_how_many() == 0)
window_pane_reset_mode(wp);
else {
mode_tree_draw(mtd);
wp->flags |= PANE_REDRAW;
}
}