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rofi/source/modes/window.c
Dave Davenport be6db24667 [window] Quick test of code scanning.
2023-07-03 13:40:23 +02:00

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/*
* rofi
*
* MIT/X11 License
* Copyright © 2013-2023 Qball Cow <qball@gmpclient.org>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
/** The log domain of this dialog. */
#define G_LOG_DOMAIN "Modes.Window"
#include "config.h"
#ifdef WINDOW_MODE
#include <errno.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>
#include <xcb/xcb.h>
#include <xcb/xcb_atom.h>
#include <xcb/xcb_ewmh.h>
#include <xcb/xcb_icccm.h>
#include <glib.h>
#include "xcb-internal.h"
#include "xcb.h"
#include "helper.h"
#include "modes/window.h"
#include "rofi.h"
#include "settings.h"
#include "widgets/textbox.h"
#include "timings.h"
#include "mode-private.h"
#include "rofi-icon-fetcher.h"
#define WINLIST 32
#define CLIENTSTATE 10
#define CLIENTWINDOWTYPE 10
// Fields to match in window mode
typedef struct {
char *field_name;
gboolean enabled;
} WinModeField;
typedef enum {
WIN_MATCH_FIELD_TITLE,
WIN_MATCH_FIELD_CLASS,
WIN_MATCH_FIELD_ROLE,
WIN_MATCH_FIELD_NAME,
WIN_MATCH_FIELD_DESKTOP,
WIN_MATCH_NUM_FIELDS,
} WinModeMatchingFields;
static WinModeField matching_window_fields[WIN_MATCH_NUM_FIELDS] = {
{
.field_name = "title",
.enabled = TRUE,
},
{
.field_name = "class",
.enabled = TRUE,
},
{
.field_name = "role",
.enabled = TRUE,
},
{
.field_name = "name",
.enabled = TRUE,
},
{
.field_name = "desktop",
.enabled = TRUE,
}};
static gboolean window_matching_fields_parsed = FALSE;
// a manageable window
typedef struct {
xcb_window_t window;
xcb_get_window_attributes_reply_t xattr;
char *title;
char *class;
char *name;
char *role;
int states;
xcb_atom_t state[CLIENTSTATE];
int window_types;
xcb_atom_t window_type[CLIENTWINDOWTYPE];
int active;
int demands;
long hint_flags;
uint32_t wmdesktop;
char *wmdesktopstr;
unsigned int wmdesktopstr_len;
cairo_surface_t *icon;
gboolean icon_checked;
uint32_t icon_fetch_uid;
uint32_t icon_fetch_size;
gboolean thumbnail_checked;
gboolean icon_theme_checked;
} client;
// window lists
typedef struct {
xcb_window_t *array;
client **data;
int len;
} winlist;
typedef struct {
unsigned int id;
winlist *ids;
// Current window.
unsigned int index;
char *cache;
unsigned int wmdn_len;
unsigned int clf_len;
unsigned int name_len;
unsigned int title_len;
unsigned int role_len;
GRegex *window_regex;
// Hide current active window
gboolean hide_active_window;
gboolean prefer_icon_theme;
} WindowModePrivateData;
winlist *cache_client = NULL;
/**
* Create a window list, pre-seeded with WINLIST entries.
*
* @returns A new window list.
*/
static winlist *winlist_new() {
winlist *l = g_malloc(sizeof(winlist));
l->len = 0;
l->array = g_malloc_n(WINLIST + 1, sizeof(xcb_window_t));
l->data = g_malloc_n(WINLIST + 1, sizeof(client *));
return l;
}
/**
* @param l The winlist.
* @param w The window to add.
* @param d Data pointer.
*
* Add one entry. If Full, extend with WINLIST entries.
*
* @returns 0 if failed, 1 is successful.
*/
static int winlist_append(winlist *l, xcb_window_t w, client *d) {
if (l->len > 0 && !(l->len % WINLIST)) {
l->array =
g_realloc(l->array, sizeof(xcb_window_t) * (l->len + WINLIST + 1));
l->data = g_realloc(l->data, sizeof(client *) * (l->len + WINLIST + 1));
}
// Make clang-check happy.
// TODO: make clang-check clear this should never be 0.
if (l->data == NULL || l->array == NULL) {
return 0;
}
l->data[l->len] = d;
l->array[l->len++] = w;
return l->len - 1;
}
static void client_free(client *c) {
if (c == NULL) {
return;
}
if (c->icon) {
cairo_surface_destroy(c->icon);
}
g_free(c->title);
g_free(c->class);
g_free(c->name);
g_free(c->role);
g_free(c->wmdesktopstr);
}
static void winlist_empty(winlist *l) {
while (l->len > 0) {
client *c = l->data[--l->len];
if (c != NULL) {
client_free(c);
g_free(c);
}
}
}
/**
* @param l The winlist entry
*
* Free the winlist.
*/
static void winlist_free(winlist *l) {
if (l != NULL) {
winlist_empty(l);
g_free(l->array);
g_free(l->data);
g_free(l);
}
}
/**
* @param l The winlist.
* @param w The window to find.
*
* Find the window in the list, and return the array entry.
*
* @returns -1 if failed, index is successful.
*/
static int winlist_find(winlist *l, xcb_window_t w) {
if (l == NULL) {
return -1;
}
// iterate backwards. Theory is: windows most often accessed will be
// nearer the end. Testing with kcachegrind seems to support this...
int i;
for (i = (l->len - 1); i >= 0; i--) {
if (l->array[i] == w) {
return i;
}
}
return -1;
}
/**
* Create empty X11 cache for windows and windows attributes.
*/
static void x11_cache_create(void) {
if (cache_client == NULL) {
cache_client = winlist_new();
}
}
/**
* Free the cache.
*/
static void x11_cache_free(void) {
winlist_free(cache_client);
cache_client = NULL;
}
/**
* @param d Display connection to X server
* @param w window
*
* Get window attributes.
* This functions uses caching.
*
* @returns a XWindowAttributes
*/
static xcb_get_window_attributes_reply_t *
window_get_attributes(xcb_window_t w) {
xcb_get_window_attributes_cookie_t c =
xcb_get_window_attributes(xcb->connection, w);
xcb_get_window_attributes_reply_t *r =
xcb_get_window_attributes_reply(xcb->connection, c, NULL);
if (r) {
return r;
}
return NULL;
}
// _NET_WM_STATE_*
static int client_has_state(client *c, xcb_atom_t state) {
for (int i = 0; i < c->states; i++) {
if ((c->state[i] & state) == state) {
return 1;
}
}
return 0;
}
static int client_has_window_type(client *c, xcb_atom_t type) {
for (int i = 0; i < c->window_types; i++) {
if (c->window_type[i] == type) {
return 1;
}
}
return 0;
}
static client *window_client(WindowModePrivateData *pd, xcb_window_t win) {
if (win == XCB_WINDOW_NONE) {
return NULL;
}
int idx = winlist_find(cache_client, win);
if (idx >= 0) {
return cache_client->data[idx];
}
// if this fails, we're up that creek
xcb_get_window_attributes_reply_t *attr = window_get_attributes(win);
if (!attr) {
return NULL;
}
client *c = g_malloc0(sizeof(client));
c->window = win;
// copy xattr so we don't have to care when stuff is freed
memmove(&c->xattr, attr, sizeof(xcb_get_window_attributes_reply_t));
xcb_get_property_cookie_t cky = xcb_ewmh_get_wm_state(&xcb->ewmh, win);
xcb_ewmh_get_atoms_reply_t states;
if (xcb_ewmh_get_wm_state_reply(&xcb->ewmh, cky, &states, NULL)) {
c->states = MIN(CLIENTSTATE, states.atoms_len);
memcpy(c->state, states.atoms,
MIN(CLIENTSTATE, states.atoms_len) * sizeof(xcb_atom_t));
xcb_ewmh_get_atoms_reply_wipe(&states);
}
cky = xcb_ewmh_get_wm_window_type(&xcb->ewmh, win);
if (xcb_ewmh_get_wm_window_type_reply(&xcb->ewmh, cky, &states, NULL)) {
c->window_types = MIN(CLIENTWINDOWTYPE, states.atoms_len);
memcpy(c->window_type, states.atoms,
MIN(CLIENTWINDOWTYPE, states.atoms_len) * sizeof(xcb_atom_t));
xcb_ewmh_get_atoms_reply_wipe(&states);
}
char *tmp_title = window_get_text_prop(c->window, xcb->ewmh._NET_WM_NAME);
if (tmp_title == NULL) {
tmp_title = window_get_text_prop(c->window, XCB_ATOM_WM_NAME);
}
if (tmp_title != NULL) {
c->title = g_markup_escape_text(tmp_title, -1);
} else {
c->title = g_strdup("<i>no title set</i>");
}
pd->title_len =
MAX(c->title ? g_utf8_strlen(c->title, -1) : 0, pd->title_len);
g_free(tmp_title);
char *tmp_role = window_get_text_prop(c->window, netatoms[WM_WINDOW_ROLE]);
c->role = g_markup_escape_text(tmp_role ? tmp_role : "", -1);
pd->role_len = MAX(c->role ? g_utf8_strlen(c->role, -1) : 0, pd->role_len);
g_free(tmp_role);
cky = xcb_icccm_get_wm_class(xcb->connection, c->window);
xcb_icccm_get_wm_class_reply_t wcr;
if (xcb_icccm_get_wm_class_reply(xcb->connection, cky, &wcr, NULL)) {
c->class = g_markup_escape_text(wcr.class_name, -1);
c->name = g_markup_escape_text(wcr.instance_name, -1);
pd->name_len = MAX(c->name ? g_utf8_strlen(c->name, -1) : 0, pd->name_len);
xcb_icccm_get_wm_class_reply_wipe(&wcr);
}
xcb_get_property_cookie_t cc =
xcb_icccm_get_wm_hints(xcb->connection, c->window);
xcb_icccm_wm_hints_t r;
if (xcb_icccm_get_wm_hints_reply(xcb->connection, cc, &r, NULL)) {
c->hint_flags = r.flags;
}
winlist_append(cache_client, c->window, c);
g_free(attr);
return c;
}
guint window_reload_timeout = 0;
static gboolean window_client_reload(G_GNUC_UNUSED void *data) {
window_reload_timeout = 0;
if (window_mode.private_data) {
window_mode._destroy(&window_mode);
window_mode._init(&window_mode);
}
if (window_mode_cd.private_data) {
window_mode_cd._destroy(&window_mode_cd);
window_mode_cd._init(&window_mode_cd);
}
if (window_mode.private_data || window_mode_cd.private_data) {
rofi_view_reload();
}
return G_SOURCE_REMOVE;
}
void window_client_handle_signal(G_GNUC_UNUSED xcb_window_t win,
G_GNUC_UNUSED gboolean create) {
// g_idle_add_full(G_PRIORITY_HIGH_IDLE, window_client_reload, NULL, NULL);
if (window_reload_timeout > 0) {
g_source_remove(window_reload_timeout);
window_reload_timeout = 0;
}
window_reload_timeout = g_timeout_add(100, window_client_reload, NULL);
}
static int window_match(const Mode *sw, rofi_int_matcher **tokens,
unsigned int index) {
WindowModePrivateData *rmpd =
(WindowModePrivateData *)mode_get_private_data(sw);
int match = 1;
const winlist *ids = (winlist *)rmpd->ids;
// Want to pull directly out of cache, X calls are not thread safe.
int idx = winlist_find(cache_client, ids->array[index]);
g_assert(idx >= 0);
client *c = cache_client->data[idx];
if (tokens) {
for (int j = 0; match && tokens[j] != NULL; j++) {
int test = 0;
// Dirty hack. Normally helper_token_match does _all_ the matching,
// Now we want it to match only one item at the time.
// If hack not in place it would not match queries spanning multiple
// fields. e.g. when searching 'title element' and 'class element'
rofi_int_matcher *ftokens[2] = {tokens[j], NULL};
if (c->title != NULL && c->title[0] != '\0' &&
matching_window_fields[WIN_MATCH_FIELD_TITLE].enabled) {
test = helper_token_match(ftokens, c->title);
}
if (test == tokens[j]->invert && c->class != NULL &&
c->class[0] != '\0' &&
matching_window_fields[WIN_MATCH_FIELD_CLASS].enabled) {
test = helper_token_match(ftokens, c->class);
}
if (test == tokens[j]->invert && c->role != NULL && c->role[0] != '\0' &&
matching_window_fields[WIN_MATCH_FIELD_ROLE].enabled) {
test = helper_token_match(ftokens, c->role);
}
if (test == tokens[j]->invert && c->name != NULL && c->name[0] != '\0' &&
matching_window_fields[WIN_MATCH_FIELD_NAME].enabled) {
test = helper_token_match(ftokens, c->name);
}
if (test == tokens[j]->invert && c->wmdesktopstr != NULL &&
c->wmdesktopstr[0] != '\0' &&
matching_window_fields[WIN_MATCH_FIELD_DESKTOP].enabled) {
test = helper_token_match(ftokens, c->wmdesktopstr);
}
if (test == 0) {
match = 0;
}
}
}
return match;
}
static void window_mode_parse_fields() {
window_matching_fields_parsed = TRUE;
char *savept = NULL;
// Make a copy, as strtok will modify it.
char *switcher_str = g_strdup(config.window_match_fields);
const char *const sep = ",#";
// Split token on ','. This modifies switcher_str.
for (unsigned int i = 0; i < WIN_MATCH_NUM_FIELDS; i++) {
matching_window_fields[i].enabled = FALSE;
}
for (char *token = strtok_r(switcher_str, sep, &savept); token != NULL;
token = strtok_r(NULL, sep, &savept)) {
if (strcmp(token, "all") == 0) {
for (unsigned int i = 0; i < WIN_MATCH_NUM_FIELDS; i++) {
matching_window_fields[i].enabled = TRUE;
}
break;
}
gboolean matched = FALSE;
for (unsigned int i = 0; i < WIN_MATCH_NUM_FIELDS; i++) {
const char *field_name = matching_window_fields[i].field_name;
if (strcmp(token, field_name) == 0) {
matching_window_fields[i].enabled = TRUE;
matched = TRUE;
}
}
if (!matched) {
g_warning("Invalid window field name :%s", token);
}
}
// Free string that was modified by strtok_r
g_free(switcher_str);
}
static unsigned int window_mode_get_num_entries(const Mode *sw) {
const WindowModePrivateData *pd =
(const WindowModePrivateData *)mode_get_private_data(sw);
return pd->ids ? pd->ids->len : 0;
}
/**
* Small helper function to find the right entry in the ewmh reply.
* Is there a call for this?
*/
const char *invalid_desktop_name = "n/a";
static const char *_window_name_list_entry(const char *str, uint32_t length,
int entry) {
uint32_t offset = 0;
int index = 0;
while (index < entry && offset < length) {
if (str[offset] == 0) {
index++;
}
offset++;
}
if (offset >= length) {
return invalid_desktop_name;
}
return &str[offset];
}
static void _window_mode_load_data(Mode *sw, unsigned int cd) {
WindowModePrivateData *pd =
(WindowModePrivateData *)mode_get_private_data(sw);
// find window list
xcb_window_t curr_win_id;
int found = 0;
// Create cache
x11_cache_create();
xcb_get_property_cookie_t c =
xcb_ewmh_get_active_window(&(xcb->ewmh), xcb->screen_nbr);
if (!xcb_ewmh_get_active_window_reply(&xcb->ewmh, c, &curr_win_id, NULL)) {
curr_win_id = 0;
}
// Get the current desktop.
unsigned int current_desktop = 0;
c = xcb_ewmh_get_current_desktop(&xcb->ewmh, xcb->screen_nbr);
if (!xcb_ewmh_get_current_desktop_reply(&xcb->ewmh, c, &current_desktop,
NULL)) {
current_desktop = 0;
}
g_debug("Get list from: %d", xcb->screen_nbr);
c = xcb_ewmh_get_client_list_stacking(&xcb->ewmh, xcb->screen_nbr);
xcb_ewmh_get_windows_reply_t clients = {
0,
};
if (xcb_ewmh_get_client_list_stacking_reply(&xcb->ewmh, c, &clients, NULL)) {
found = 1;
} else {
c = xcb_ewmh_get_client_list(&xcb->ewmh, xcb->screen_nbr);
if (xcb_ewmh_get_client_list_reply(&xcb->ewmh, c, &clients, NULL)) {
found = 1;
}
}
if (!found) {
return;
}
if (clients.windows_len > 0) {
int i;
// windows we actually display. May be slightly different to
// _NET_CLIENT_LIST_STACKING if we happen to have a window destroyed while
// we're working...
pd->ids = winlist_new();
int has_names = FALSE;
ssize_t ws_names_length = 0;
char *ws_names = NULL;
xcb_get_property_cookie_t prop_cookie =
xcb_ewmh_get_desktop_names(&xcb->ewmh, xcb->screen_nbr);
xcb_ewmh_get_utf8_strings_reply_t names;
if (xcb_ewmh_get_desktop_names_reply(&xcb->ewmh, prop_cookie, &names,
NULL)) {
ws_names_length = names.strings_len;
ws_names = g_malloc0_n(names.strings_len + 1, sizeof(char));
memcpy(ws_names, names.strings, names.strings_len);
has_names = TRUE;
xcb_ewmh_get_utf8_strings_reply_wipe(&names);
}
// calc widths of fields
for (i = clients.windows_len - 1; i > -1; i--) {
client *winclient = window_client(pd, clients.windows[i]);
if ((winclient != NULL) && !winclient->xattr.override_redirect &&
!client_has_window_type(winclient,
xcb->ewmh._NET_WM_WINDOW_TYPE_DOCK) &&
!client_has_window_type(winclient,
xcb->ewmh._NET_WM_WINDOW_TYPE_DESKTOP) &&
!client_has_state(winclient, xcb->ewmh._NET_WM_STATE_SKIP_PAGER) &&
!client_has_state(winclient, xcb->ewmh._NET_WM_STATE_SKIP_TASKBAR)) {
pd->clf_len =
MAX(pd->clf_len, (winclient->class != NULL)
? (g_utf8_strlen(winclient->class, -1))
: 0);
if (client_has_state(winclient,
xcb->ewmh._NET_WM_STATE_DEMANDS_ATTENTION)) {
winclient->demands = TRUE;
}
if ((winclient->hint_flags & XCB_ICCCM_WM_HINT_X_URGENCY) != 0) {
winclient->demands = TRUE;
}
if (winclient->window == curr_win_id) {
winclient->active = TRUE;
}
// find client's desktop.
xcb_get_property_cookie_t cookie;
xcb_get_property_reply_t *r;
winclient->wmdesktop = 0xFFFFFFFF;
cookie = xcb_get_property(xcb->connection, 0, winclient->window,
xcb->ewmh._NET_WM_DESKTOP, XCB_ATOM_CARDINAL,
0, 1);
r = xcb_get_property_reply(xcb->connection, cookie, NULL);
if (r) {
if (r->type == XCB_ATOM_CARDINAL) {
winclient->wmdesktop = *((uint32_t *)xcb_get_property_value(r));
}
free(r);
}
if (winclient->wmdesktop != 0xFFFFFFFF) {
if (has_names) {
if ((current_window_manager & WM_PANGO_WORKSPACE_NAMES) ==
WM_PANGO_WORKSPACE_NAMES) {
char *output = NULL;
if (pango_parse_markup(
_window_name_list_entry(ws_names, ws_names_length,
winclient->wmdesktop),
-1, 0, NULL, &output, NULL, NULL)) {
winclient->wmdesktopstr = g_strdup(_window_name_list_entry(
ws_names, ws_names_length, winclient->wmdesktop));
winclient->wmdesktopstr_len = g_utf8_strlen(output, -1);
pd->wmdn_len = MAX(pd->wmdn_len, winclient->wmdesktopstr_len);
g_free(output);
} else {
winclient->wmdesktopstr = g_strdup("Invalid name");
winclient->wmdesktopstr_len =
g_utf8_strlen(winclient->wmdesktopstr, -1);
pd->wmdn_len = MAX(pd->wmdn_len, winclient->wmdesktopstr_len);
}
} else {
winclient->wmdesktopstr = g_markup_escape_text(
_window_name_list_entry(ws_names, ws_names_length,
winclient->wmdesktop),
-1);
winclient->wmdesktopstr_len =
g_utf8_strlen(winclient->wmdesktopstr, -1);
pd->wmdn_len = MAX(pd->wmdn_len, winclient->wmdesktopstr_len);
}
} else {
winclient->wmdesktopstr =
g_strdup_printf("%u", (uint32_t)winclient->wmdesktop);
winclient->wmdesktopstr_len =
g_utf8_strlen(winclient->wmdesktopstr, -1);
pd->wmdn_len = MAX(pd->wmdn_len, winclient->wmdesktopstr_len);
}
} else {
winclient->wmdesktopstr = g_strdup("");
winclient->wmdesktopstr_len =
g_utf8_strlen(winclient->wmdesktopstr, -1);
pd->wmdn_len = MAX(pd->wmdn_len, winclient->wmdesktopstr_len);
}
if (cd && winclient->wmdesktop != current_desktop) {
continue;
}
if (!pd->hide_active_window || winclient->window != curr_win_id) {
winlist_append(pd->ids, winclient->window, NULL);
}
}
}
if (has_names) {
g_free(ws_names);
}
}
xcb_ewmh_get_windows_reply_wipe(&clients);
}
static int window_mode_init(Mode *sw) {
if (mode_get_private_data(sw) == NULL) {
WindowModePrivateData *pd = g_malloc0(sizeof(*pd));
ThemeWidget *wid = rofi_config_find_widget(sw->name, NULL, TRUE);
Property *p =
rofi_theme_find_property(wid, P_BOOLEAN, "hide-active-window", FALSE);
if (p && p->type == P_BOOLEAN && p->value.b == TRUE) {
pd->hide_active_window = TRUE;
}
// prefer icon theme selection
p = rofi_theme_find_property(wid, P_BOOLEAN, "prefer-icon-theme", FALSE);
if (p && p->type == P_BOOLEAN && p->value.b == TRUE) {
pd->prefer_icon_theme = TRUE;
}
pd->window_regex = g_regex_new("{[-\\w]+(:-?[0-9]+)?}", 0, 0, NULL);
mode_set_private_data(sw, (void *)pd);
_window_mode_load_data(sw, FALSE);
if (!window_matching_fields_parsed) {
window_mode_parse_fields();
}
}
return TRUE;
}
static int window_mode_init_cd(Mode *sw) {
if (mode_get_private_data(sw) == NULL) {
WindowModePrivateData *pd = g_malloc0(sizeof(*pd));
ThemeWidget *wid = rofi_config_find_widget(sw->name, NULL, TRUE);
Property *p =
rofi_theme_find_property(wid, P_BOOLEAN, "hide-active-window", FALSE);
if (p && p->type == P_BOOLEAN && p->value.b == TRUE) {
pd->hide_active_window = TRUE;
}
pd->window_regex = g_regex_new("{[-\\w]+(:-?[0-9]+)?}", 0, 0, NULL);
mode_set_private_data(sw, (void *)pd);
_window_mode_load_data(sw, TRUE);
if (!window_matching_fields_parsed) {
window_mode_parse_fields();
}
}
return TRUE;
}
static inline int act_on_window(xcb_window_t window) {
int retv = TRUE;
char **args = NULL;
int argc = 0;
char window_regex[100]; /* We are probably safe here */
g_snprintf(window_regex, sizeof window_regex, "%d", window);
helper_parse_setup(config.window_command, &args, &argc, "{window}",
window_regex, (char *)0);
GError *error = NULL;
g_spawn_async(NULL, args, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, NULL,
&error);
if (error != NULL) {
char *msg = g_strdup_printf(
"Failed to execute action for window: '%s'\nError: '%s'", window_regex,
error->message);
rofi_view_error_dialog(msg, FALSE);
g_free(msg);
// print error.
g_error_free(error);
retv = FALSE;
}
// Free the args list.
g_strfreev(args);
return retv;
}
static ModeMode window_mode_result(Mode *sw, int mretv,
G_GNUC_UNUSED char **input,
unsigned int selected_line) {
WindowModePrivateData *rmpd =
(WindowModePrivateData *)mode_get_private_data(sw);
ModeMode retv = MODE_EXIT;
if ((mretv & (MENU_OK))) {
if (mretv & MENU_CUSTOM_ACTION) {
act_on_window(rmpd->ids->array[selected_line]);
} else {
// Disable reverting input focus to previous window.
xcb->focus_revert = 0;
rofi_view_hide();
if ((current_window_manager & WM_DO_NOT_CHANGE_CURRENT_DESKTOP) == 0) {
// Get the desktop of the client to switch to
uint32_t wmdesktop = 0;
xcb_get_property_cookie_t cookie;
xcb_get_property_reply_t *r;
// Get the current desktop.
unsigned int current_desktop = 0;
xcb_get_property_cookie_t c =
xcb_ewmh_get_current_desktop(&xcb->ewmh, xcb->screen_nbr);
if (!xcb_ewmh_get_current_desktop_reply(&xcb->ewmh, c, &current_desktop,
NULL)) {
current_desktop = 0;
}
cookie = xcb_get_property(
xcb->connection, 0, rmpd->ids->array[selected_line],
xcb->ewmh._NET_WM_DESKTOP, XCB_ATOM_CARDINAL, 0, 1);
r = xcb_get_property_reply(xcb->connection, cookie, NULL);
if (r && r->type == XCB_ATOM_CARDINAL) {
wmdesktop = *((uint32_t *)xcb_get_property_value(r));
}
if (r && r->type != XCB_ATOM_CARDINAL) {
// Assume the client is on all desktops.
wmdesktop = current_desktop;
}
free(r);
// If we have to switch the desktop, do
if (wmdesktop != current_desktop) {
xcb_ewmh_request_change_current_desktop(&xcb->ewmh, xcb->screen_nbr,
wmdesktop, XCB_CURRENT_TIME);
}
}
// Activate the window
xcb_ewmh_request_change_active_window(
&xcb->ewmh, xcb->screen_nbr, rmpd->ids->array[selected_line],
XCB_EWMH_CLIENT_SOURCE_TYPE_OTHER, XCB_CURRENT_TIME,
rofi_view_get_window());
xcb_flush(xcb->connection);
}
} else if ((mretv & (MENU_ENTRY_DELETE)) == MENU_ENTRY_DELETE) {
xcb_ewmh_request_close_window(
&(xcb->ewmh), xcb->screen_nbr, rmpd->ids->array[selected_line],
XCB_CURRENT_TIME, XCB_EWMH_CLIENT_SOURCE_TYPE_OTHER);
xcb_flush(xcb->connection);
ThemeWidget *wid = rofi_config_find_widget(sw->name, NULL, TRUE);
Property *p =
rofi_theme_find_property(wid, P_BOOLEAN, "close-on-delete", TRUE);
if (p && p->type == P_BOOLEAN && p->value.b == FALSE) {
return RELOAD_DIALOG;
}
} else if ((mretv & MENU_CUSTOM_INPUT) && *input != NULL &&
*input[0] != '\0') {
GError *error = NULL;
gboolean run_in_term = ((mretv & MENU_CUSTOM_ACTION) == MENU_CUSTOM_ACTION);
gsize lf_cmd_size = 0;
gchar *lf_cmd = g_locale_from_utf8(*input, -1, NULL, &lf_cmd_size, &error);
if (error != NULL) {
g_warning("Failed to convert command to locale encoding: %s",
error->message);
g_error_free(error);
return RELOAD_DIALOG;
}
RofiHelperExecuteContext context = {.name = NULL};
if (!helper_execute_command(NULL, lf_cmd, run_in_term,
run_in_term ? &context : NULL)) {
retv = RELOAD_DIALOG;
}
g_free(lf_cmd);
} else if (mretv & MENU_CUSTOM_COMMAND) {
retv = (mretv & MENU_LOWER_MASK);
}
return retv;
}
static void window_mode_destroy(Mode *sw) {
WindowModePrivateData *rmpd =
(WindowModePrivateData *)mode_get_private_data(sw);
if (rmpd != NULL) {
winlist_free(rmpd->ids);
x11_cache_free();
g_free(rmpd->cache);
g_regex_unref(rmpd->window_regex);
g_free(rmpd);
mode_set_private_data(sw, NULL);
}
}
struct arg {
const WindowModePrivateData *pd;
const client *c;
};
static void helper_eval_add_str(GString *str, const char *input, int l,
int max_len, int nc) {
// g_utf8 does not work with NULL string.
const char *input_nn = input ? input : "";
// Both l and max_len are in characters, not bytes.
int spaces = 0;
if (l > 0) {
if (nc > l) {
int bl = g_utf8_offset_to_pointer(input_nn, l) - input_nn;
char *tmp = g_markup_escape_text(input_nn, bl);
g_string_append(str, tmp);
g_free(tmp);
} else {
spaces = l - nc;
char *tmp = g_markup_escape_text(input_nn, -1);
g_string_append(str, tmp);
g_free(tmp);
}
} else {
g_string_append(str, input_nn);
if (l == 0) {
spaces = MAX(0, max_len - nc);
}
}
while (spaces--) {
g_string_append_c(str, ' ');
}
}
static gboolean helper_eval_cb(const GMatchInfo *info, GString *str,
gpointer data) {
struct arg *d = (struct arg *)data;
gchar *match;
// Get the match
match = g_match_info_fetch(info, 0);
if (match != NULL) {
int l = 0;
if (match[2] == ':') {
l = (int)g_ascii_strtoll(&match[3], NULL, 10);
}
if (match[1] == 'w') {
helper_eval_add_str(str, d->c->wmdesktopstr, l, d->pd->wmdn_len,
d->c->wmdesktopstr_len);
} else if (match[1] == 'c') {
helper_eval_add_str(str, d->c->class, l, d->pd->clf_len,
g_utf8_strlen(d->c->class, -1));
} else if (match[1] == 't') {
helper_eval_add_str(str, d->c->title, l, d->pd->title_len,
g_utf8_strlen(d->c->title, -1));
} else if (match[1] == 'n') {
helper_eval_add_str(str, d->c->name, l, d->pd->name_len,
g_utf8_strlen(d->c->name, -1));
} else if (match[1] == 'r') {
helper_eval_add_str(str, d->c->role, l, d->pd->role_len,
g_utf8_strlen(d->c->role, -1));
}
g_free(match);
}
return FALSE;
}
static char *_generate_display_string(const WindowModePrivateData *pd,
const client *c) {
struct arg d = {pd, c};
char *res = g_regex_replace_eval(pd->window_regex, config.window_format, -1,
0, 0, helper_eval_cb, &d, NULL);
return g_strchomp(res);
}
static char *_get_display_value(const Mode *sw, unsigned int selected_line,
int *state, G_GNUC_UNUSED GList **list,
int get_entry) {
WindowModePrivateData *rmpd = mode_get_private_data(sw);
const client *c = window_client(rmpd, rmpd->ids->array[selected_line]);
if (c == NULL) {
return get_entry ? g_strdup("Window has vanished") : NULL;
}
if (c->demands) {
*state |= URGENT;
}
if (c->active) {
*state |= ACTIVE;
}
*state |= MARKUP;
return get_entry ? _generate_display_string(rmpd, c) : NULL;
}
/**
* Icon code borrowed from https://github.com/olejorgenb/extract-window-icon
*/
static cairo_user_data_key_t data_key;
/** Create a surface object from this image data.
* \param width The width of the image.
* \param height The height of the image
* \param data The image's data in ARGB format, will be copied by this
* function.
*/
static cairo_surface_t *draw_surface_from_data(uint32_t width, uint32_t height,
uint32_t const *const data) {
// limit surface size.
if ( width >= 65536 || height >= 65536){
return NULL;
}
uint32_t len = width * height;
uint32_t i;
uint32_t *buffer = g_new0(uint32_t, len);
cairo_surface_t *surface;
/* Cairo wants premultiplied alpha, meh :( */
for (i = 0; i < len; i++) {
uint8_t a = (data[i] >> 24) & 0xff;
double alpha = a / 255.0;
uint8_t r = ((data[i] >> 16) & 0xff) * alpha;
uint8_t g = ((data[i] >> 8) & 0xff) * alpha;
uint8_t b = ((data[i] >> 0) & 0xff) * alpha;
buffer[i] = (a << 24) | (r << 16) | (g << 8) | b;
}
surface = cairo_image_surface_create_for_data(
(unsigned char *)buffer, CAIRO_FORMAT_ARGB32, width, height, width * 4);
/* This makes sure that buffer will be freed */
cairo_surface_set_user_data(surface, &data_key, buffer, g_free);
return surface;
}
static cairo_surface_t *ewmh_window_icon_from_reply(xcb_get_property_reply_t *r,
uint32_t preferred_size) {
uint32_t *data, *end, *found_data = 0;
uint32_t found_size = 0;
if (!r || r->type != XCB_ATOM_CARDINAL || r->format != 32 || r->length < 2) {
return 0;
}
data = (uint32_t *)xcb_get_property_value(r);
if (!data) {
return 0;
}
end = data + r->length;
/* Goes over the icon data and picks the icon that best matches the size
* preference. In case the size match is not exact, picks the closest bigger
* size if present, closest smaller size otherwise.
*/
while (data + 1 < end) {
/* check whether the data size specified by width and height fits into the
* array we got */
uint64_t data_size = (uint64_t)data[0] * data[1];
if (data_size > (uint64_t)(end - data - 2)) {
break;
}
/* use the greater of the two dimensions to match against the preferred
* size
*/
uint32_t size = MAX(data[0], data[1]);
/* pick the icon if it's a better match than the one we already have */
gboolean found_icon_too_small = found_size < preferred_size;
gboolean found_icon_too_large = found_size > preferred_size;
gboolean icon_empty = data[0] == 0 || data[1] == 0;
gboolean better_because_bigger = found_icon_too_small && size > found_size;
gboolean better_because_smaller =
found_icon_too_large && size >= preferred_size && size < found_size;
if (!icon_empty &&
(better_because_bigger || better_because_smaller || found_size == 0)) {
found_data = data;
found_size = size;
}
data += data_size + 2;
}
if (!found_data) {
return 0;
}
return draw_surface_from_data(found_data[0], found_data[1], found_data + 2);
}
/** Get NET_WM_ICON. */
static cairo_surface_t *get_net_wm_icon(xcb_window_t xid,
uint32_t preferred_size) {
xcb_get_property_cookie_t cookie = xcb_get_property_unchecked(
xcb->connection, FALSE, xid, xcb->ewmh._NET_WM_ICON, XCB_ATOM_CARDINAL, 0,
UINT32_MAX);
xcb_get_property_reply_t *r =
xcb_get_property_reply(xcb->connection, cookie, NULL);
cairo_surface_t *surface = ewmh_window_icon_from_reply(r, preferred_size);
free(r);
return surface;
}
static cairo_surface_t *_get_icon(const Mode *sw, unsigned int selected_line,
unsigned int size) {
WindowModePrivateData *rmpd = mode_get_private_data(sw);
client *c = window_client(rmpd, rmpd->ids->array[selected_line]);
if (c == NULL) {
return NULL;
}
if (c->icon_fetch_size != size) {
if (c->icon) {
cairo_surface_destroy(c->icon);
c->icon = NULL;
}
c->thumbnail_checked = FALSE;
c->icon_checked = FALSE;
c->icon_theme_checked = FALSE;
}
if (config.window_thumbnail && c->thumbnail_checked == FALSE) {
c->icon = x11_helper_get_screenshot_surface_window(c->window, size);
c->thumbnail_checked = TRUE;
}
if (rmpd->prefer_icon_theme == FALSE) {
if (c->icon == NULL && c->icon_checked == FALSE) {
c->icon = get_net_wm_icon(rmpd->ids->array[selected_line], size);
c->icon_checked = TRUE;
}
if (c->icon == NULL && c->class && c->icon_theme_checked == FALSE) {
if (c->icon_fetch_uid == 0) {
char *class_lower = g_utf8_strdown(c->class, -1);
c->icon_fetch_uid = rofi_icon_fetcher_query(class_lower, size);
g_free(class_lower);
c->icon_fetch_size = size;
}
c->icon_theme_checked =
rofi_icon_fetcher_get_ex(c->icon_fetch_uid, &(c->icon));
if (c->icon) {
cairo_surface_reference(c->icon);
}
}
} else {
if (c->icon == NULL && c->class && c->icon_theme_checked == FALSE) {
if (c->icon_fetch_uid == 0) {
char *class_lower = g_utf8_strdown(c->class, -1);
c->icon_fetch_uid = rofi_icon_fetcher_query(class_lower, size);
g_free(class_lower);
c->icon_fetch_size = size;
}
c->icon_theme_checked =
rofi_icon_fetcher_get_ex(c->icon_fetch_uid, &(c->icon));
if (c->icon) {
cairo_surface_reference(c->icon);
}
}
if (c->icon_theme_checked == TRUE && c->icon == NULL &&
c->icon_checked == FALSE) {
c->icon = get_net_wm_icon(rmpd->ids->array[selected_line], size);
c->icon_checked = TRUE;
}
}
c->icon_fetch_size = size;
return c->icon;
}
#include "mode-private.h"
Mode window_mode = {.name = "window",
.cfg_name_key = "display-window",
._init = window_mode_init,
._get_num_entries = window_mode_get_num_entries,
._result = window_mode_result,
._destroy = window_mode_destroy,
._token_match = window_match,
._get_display_value = _get_display_value,
._get_icon = _get_icon,
._get_completion = NULL,
._preprocess_input = NULL,
.private_data = NULL,
.free = NULL,
.type = MODE_TYPE_SWITCHER };
Mode window_mode_cd = {.name = "windowcd",
.cfg_name_key = "display-windowcd",
._init = window_mode_init_cd,
._get_num_entries = window_mode_get_num_entries,
._result = window_mode_result,
._destroy = window_mode_destroy,
._token_match = window_match,
._get_display_value = _get_display_value,
._get_icon = _get_icon,
._get_completion = NULL,
._preprocess_input = NULL,
.private_data = NULL,
.free = NULL,
.type = MODE_TYPE_SWITCHER };
#endif // WINDOW_MODE
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