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rofi/source/rofi.c
Dave Davenport 562ace6b78 small cleanup error_dialog, remove dummy calc
2014-08-28 10:10:16 +02:00

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/**
* rofi
*
* MIT/X11 License
* Copyright (c) 2012 Sean Pringle <sean.pringle@gmail.com>
* Modified 2013-2014 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.
*
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <unistd.h>
#include <stdint.h>
#include <ctype.h>
#include <signal.h>
#include <sys/wait.h>
#include <fcntl.h>
#include <err.h>
#include <errno.h>
#include <time.h>
#include <X11/X.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xmd.h>
#include <X11/Xutil.h>
#include <X11/Xproto.h>
#include <X11/keysym.h>
#include <X11/XKBlib.h>
#include <X11/extensions/Xinerama.h>
#include "rofi.h"
#ifdef HAVE_I3_IPC_H
#include <errno.h>
#include <linux/un.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <i3/ipc.h>
#endif
#include "run-dialog.h"
#include "ssh-dialog.h"
#include "dmenu-dialog.h"
#include "script-dialog.h"
#include "xrmoptions.h"
#define LINE_MARGIN 3
#ifdef HAVE_I3_IPC_H
// This setting is no longer user configurable, but partial to this file:
int config_i3_mode = 0;
// Path to HAVE_I3_IPC_H socket.
char *i3_socket_path = NULL;
#endif
const char *cache_dir = NULL;
unsigned int NumlockMask = 0;
Display *display = NULL;
typedef struct _Switcher
{
char name[32];
switcher_callback cb;
void *cb_data;
} Switcher;
Switcher *switchers = NULL;
unsigned int num_switchers = 0;
void window_set_opacity ( Display *display, Window box, unsigned int opacity );
int switcher_get ( const char *name )
{
for ( unsigned int i = 0; i < num_switchers; i++ ) {
if ( strcmp ( switchers[i].name, name ) == 0 ) {
return i;
}
}
return -1;
}
/**
* Shared 'token_match' function.
* Matches tokenized.
*/
int token_match ( char **tokens, const char *input,
__attribute__( ( unused ) ) int index,
__attribute__( ( unused ) ) void *data )
{
int match = 1;
char *lowerc = g_utf8_casefold ( input, -1 );
char *compk = g_utf8_collate_key ( lowerc, -1 );
// Do a tokenized match.
if ( tokens ) {
for ( int j = 0; match && tokens[j]; j++ ) {
match = ( strstr ( compk, tokens[j] ) != NULL );
}
}
g_free ( lowerc );
g_free ( compk );
return match;
}
static char **tokenize ( const char *input )
{
if ( input == NULL ) {
return NULL;
}
char *saveptr = NULL, *token;
char **retv = NULL;
// First entry is always full (modified) stringtext.
int num_tokens = 0;
// Copy the string, 'strtok_r' modifies it.
char *str = g_strdup ( input );
// Iterate over tokens.
// strtok should still be valid for utf8.
for ( token = strtok_r ( str, " ", &saveptr );
token != NULL;
token = strtok_r ( NULL, " ", &saveptr ) ) {
// Get case insensitive version of the string.
char *tmp = g_utf8_casefold ( token, -1 );
retv = g_realloc ( retv, sizeof ( char* ) * ( num_tokens + 2 ) );
retv[num_tokens + 1] = NULL;
// Create compare key from the case insensitive version.
retv[num_tokens] = g_utf8_collate_key ( tmp, -1 );
num_tokens++;
g_free ( tmp );
}
// Free str.
g_free ( str );
return retv;
}
#ifdef HAVE_I3_IPC_H
// Focus window on HAVE_I3_IPC_H window manager.
static void focus_window_i3 ( const char *socket_path, int id )
{
i3_ipc_header_t head;
char command[128];
int s, t, len;
struct sockaddr_un remote;
if ( strlen ( socket_path ) > UNIX_PATH_MAX ) {
fprintf ( stderr, "Socket path is to long. %zd > %d\n", strlen ( socket_path ), UNIX_PATH_MAX );
return;
}
if ( ( s = socket ( AF_UNIX, SOCK_STREAM, 0 ) ) == -1 ) {
fprintf ( stderr, "Failed to open connection to I3: %s\n", strerror ( errno ) );
return;
}
remote.sun_family = AF_UNIX;
strcpy ( remote.sun_path, socket_path );
len = strlen ( remote.sun_path ) + sizeof ( remote.sun_family );
if ( connect ( s, ( struct sockaddr * ) &remote, len ) == -1 ) {
fprintf ( stderr, "Failed to connect to I3 (%s): %s\n", socket_path, strerror ( errno ) );
close ( s );
return;
}
// Formulate command
snprintf ( command, 128, "[id=\"%d\"] focus", id );
// Prepare header.
memcpy ( head.magic, I3_IPC_MAGIC, 6 );
head.size = strlen ( command );
head.type = I3_IPC_MESSAGE_TYPE_COMMAND;
// Send header.
send ( s, &head, sizeof ( head ), 0 );
// Send message
send ( s, command, strlen ( command ), 0 );
// Receive header.
t = recv ( s, &head, sizeof ( head ), 0 );
if ( t == sizeof ( head ) ) {
recv ( s, command, head.size, 0 );
}
close ( s );
}
#endif
void catch_exit ( __attribute__( ( unused ) ) int sig )
{
while ( 0 < waitpid ( -1, NULL, WNOHANG ) ) {
;
}
}
// cli arg handling
static int find_arg ( const int argc, char * const argv[], const char * const key )
{
int i;
for ( i = 0; i < argc && strcasecmp ( argv[i], key ); i++ ) {
;
}
return i < argc ? i : -1;
}
static int find_arg_str ( int argc, char *argv[], char *key, char** val )
{
int i = find_arg ( argc, argv, key );
if ( val != NULL && i > 0 && i < argc - 1 ) {
*val = argv[i + 1];
return TRUE;
}
return FALSE;
}
static int find_arg_int ( int argc, char *argv[], char *key, int *val )
{
int i = find_arg ( argc, argv, key );
if ( val != NULL && i > 0 && i < ( argc - 1 ) ) {
*val = strtol ( argv[i + 1], NULL, 10 );
return TRUE;
}
return FALSE;
}
static int find_arg_uint ( int argc, char *argv[], char *key, unsigned int *val )
{
int i = find_arg ( argc, argv, key );
if ( val != NULL && i > 0 && i < ( argc - 1 ) ) {
*val = strtoul ( argv[i + 1], NULL, 10 );
return TRUE;
}
return FALSE;
}
static int ( *xerror )( Display *, XErrorEvent * );
#define ATOM_ENUM( x ) x
#define ATOM_CHAR( x ) # x
#define EWMH_ATOMS( X ) \
X ( _NET_CLIENT_LIST_STACKING ), \
X ( _NET_NUMBER_OF_DESKTOPS ), \
X ( _NET_CURRENT_DESKTOP ), \
X ( _NET_ACTIVE_WINDOW ), \
X ( _NET_WM_NAME ), \
X ( _NET_WM_STATE ), \
X ( _NET_WM_STATE_SKIP_TASKBAR ), \
X ( _NET_WM_STATE_SKIP_PAGER ), \
X ( _NET_WM_STATE_ABOVE ), \
X ( _NET_WM_DESKTOP ), \
X ( I3_SOCKET_PATH ), \
X ( CLIPBOARD ), \
X ( UTF8_STRING ), \
X ( _NET_WM_WINDOW_OPACITY )
enum { EWMH_ATOMS ( ATOM_ENUM ), NUM_NETATOMS };
const char *netatom_names[] = { EWMH_ATOMS ( ATOM_CHAR ) };
Atom netatoms[NUM_NETATOMS];
// X error handler
static int display_oops ( Display *d, XErrorEvent *ee )
{
if ( ee->error_code == BadWindow
|| ( ee->request_code == X_GrabButton && ee->error_code == BadAccess )
|| ( ee->request_code == X_GrabKey && ee->error_code == BadAccess )
) {
return 0;
}
fprintf ( stderr, "error: request code=%d, error code=%d\n", ee->request_code, ee->error_code );
return xerror ( d, ee );
}
// usable space on a monitor
typedef struct
{
int x, y, w, h;
int l, r, t, b;
} workarea;
// window lists
typedef struct
{
Window *array;
void **data;
int len;
} winlist;
winlist *cache_client = NULL;
winlist *cache_xattr = NULL;
#define winlist_ascend( l, i, w ) for ( ( i ) = 0; ( i ) < ( l )->len && ( ( ( w ) = ( l )->array[i] ) || 1 ); ( i )++ )
#define winlist_descend( l, i, w ) for ( ( i ) = ( l )->len - 1; ( i ) >= 0 && ( ( ( w ) = ( l )->array[i] ) || 1 ); ( i )-- )
#define WINLIST 32
winlist* winlist_new ()
{
winlist *l = g_malloc ( sizeof ( winlist ) );
l->len = 0;
l->array = g_malloc_n ( WINLIST + 1, sizeof ( Window ) );
l->data = g_malloc_n ( WINLIST + 1, sizeof ( void* ) );
return l;
}
int winlist_append ( winlist *l, Window w, void *d )
{
if ( l->len > 0 && !( l->len % WINLIST ) ) {
l->array = g_realloc ( l->array, sizeof ( Window ) * ( l->len + WINLIST + 1 ) );
l->data = g_realloc ( l->data, sizeof ( void* ) * ( 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;
}
void winlist_empty ( winlist *l )
{
while ( l->len > 0 ) {
g_free ( l->data[--( l->len )] );
}
}
void winlist_free ( winlist *l )
{
winlist_empty ( l );
g_free ( l->array );
g_free ( l->data );
g_free ( l );
}
int winlist_find ( winlist *l, Window w )
{
// iterate backwards. theory is: windows most often accessed will be
// nearer the end. testing with kcachegrind seems to support this...
int i;
Window o = 0;
winlist_descend ( l, i, o ) if ( w == o ) {
return i;
}
return -1;
}
#define CLIENTTITLE 100
#define CLIENTCLASS 50
#define CLIENTNAME 50
#define CLIENTSTATE 10
#define CLIENTROLE 50
// a managable window
typedef struct
{
Window window, trans;
XWindowAttributes xattr;
char title[CLIENTTITLE];
char class[CLIENTCLASS];
char name[CLIENTNAME];
char role[CLIENTROLE];
int states;
Atom state[CLIENTSTATE];
workarea monitor;
int active;
} client;
// g_malloc a pixel value for an X named color
static unsigned int color_get ( Display *display, const char *const name )
{
int screen_id = DefaultScreen ( display );
XColor color;
Colormap map = DefaultColormap ( display, screen_id );
return XAllocNamedColor ( display, map, name, &color, &color ) ? color.pixel : None;
}
// find mouse pointer location
int pointer_get ( Window root, int *x, int *y )
{
*x = 0;
*y = 0;
Window rr, cr;
int rxr, ryr, wxr, wyr;
unsigned int mr;
if ( XQueryPointer ( display, root, &rr, &cr, &rxr, &ryr, &wxr, &wyr, &mr ) ) {
*x = rxr;
*y = ryr;
return 1;
}
return 0;
}
static int take_keyboard ( Window w )
{
int i;
for ( i = 0; i < 1000; i++ ) {
if ( XGrabKeyboard ( display, w, True, GrabModeAsync, GrabModeAsync, CurrentTime ) == GrabSuccess ) {
return 1;
}
struct timespec rsl = { 0, 100000L };
nanosleep ( &rsl, NULL );
}
return 0;
}
void release_keyboard ()
{
XUngrabKeyboard ( display, CurrentTime );
}
// XGetWindowAttributes with caching
XWindowAttributes* window_get_attributes ( Window w )
{
int idx = winlist_find ( cache_xattr, w );
if ( idx < 0 ) {
XWindowAttributes *cattr = g_malloc ( sizeof ( XWindowAttributes ) );
if ( XGetWindowAttributes ( display, w, cattr ) ) {
winlist_append ( cache_xattr, w, cattr );
return cattr;
}
g_free ( cattr );
return NULL;
}
return cache_xattr->data[idx];
}
// retrieve a property of any type from a window
int window_get_prop ( Window w, Atom prop, Atom *type, int *items, void *buffer, unsigned int bytes )
{
Atom _type;
if ( !type ) {
type = &_type;
}
int _items;
if ( !items ) {
items = &_items;
}
int format;
unsigned long nitems, nbytes;
unsigned char *ret = NULL;
memset ( buffer, 0, bytes );
if ( XGetWindowProperty ( display, w, prop, 0, bytes / 4, False, AnyPropertyType, type,
&format, &nitems, &nbytes, &ret ) == Success && ret && *type != None && format ) {
if ( format == 8 ) {
memmove ( buffer, ret, MIN ( bytes, nitems ) );
}
if ( format == 16 ) {
memmove ( buffer, ret, MIN ( bytes, nitems * sizeof ( short ) ) );
}
if ( format == 32 ) {
memmove ( buffer, ret, MIN ( bytes, nitems * sizeof ( long ) ) );
}
*items = ( int ) nitems;
XFree ( ret );
return 1;
}
return 0;
}
// retrieve a text property from a window
// technically we could use window_get_prop(), but this is better for character set support
char* window_get_text_prop ( Window w, Atom atom )
{
XTextProperty prop;
char *res = NULL;
char **list = NULL;
int count;
if ( XGetTextProperty ( display, w, &prop, atom ) && prop.value && prop.nitems ) {
if ( prop.encoding == XA_STRING ) {
res = g_malloc ( strlen ( ( char * ) prop.value ) + 1 );
// make clang-check happy.
if ( res ) {
strcpy ( res, ( char * ) prop.value );
}
}
else if ( Xutf8TextPropertyToTextList ( display, &prop, &list, &count ) >= Success && count > 0 && *list ) {
res = g_malloc ( strlen ( *list ) + 1 );
// make clang-check happy.
if ( res ) {
strcpy ( res, *list );
}
XFreeStringList ( list );
}
}
if ( prop.value ) {
XFree ( prop.value );
}
return res;
}
int window_get_atom_prop ( Window w, Atom atom, Atom *list, int count )
{
Atom type;
int items;
return window_get_prop ( w, atom, &type, &items, list, count * sizeof ( Atom ) ) && type == XA_ATOM ? items : 0;
}
void window_set_atom_prop ( Window w, Atom prop, Atom *atoms, int count )
{
XChangeProperty ( display, w, prop, XA_ATOM, 32, PropModeReplace, ( unsigned char * ) atoms, count );
}
int window_get_cardinal_prop ( Window w, Atom atom, unsigned long *list, int count )
{
Atom type; int items;
return window_get_prop ( w, atom, &type, &items, list, count * sizeof ( unsigned long ) ) && type == XA_CARDINAL ? items : 0;
}
// a ClientMessage
int window_send_message ( Window target, Window subject, Atom atom, unsigned long protocol, unsigned long mask, Time time )
{
XEvent e;
memset ( &e, 0, sizeof ( XEvent ) );
e.xclient.type = ClientMessage;
e.xclient.message_type = atom;
e.xclient.window = subject;
e.xclient.data.l[0] = protocol;
e.xclient.data.l[1] = time;
e.xclient.send_event = True;
e.xclient.format = 32;
int r = XSendEvent ( display, target, False, mask, &e ) ? 1 : 0;
XFlush ( display );
return r;
}
// find the dimensions of the monitor displaying point x,y
void monitor_dimensions ( Screen *screen, int x, int y, workarea *mon )
{
memset ( mon, 0, sizeof ( workarea ) );
mon->w = WidthOfScreen ( screen );
mon->h = HeightOfScreen ( screen );
// locate the current monitor
if ( XineramaIsActive ( display ) ) {
int monitors;
XineramaScreenInfo *info = XineramaQueryScreens ( display, &monitors );
if ( info ) {
for ( int i = 0; i < monitors; i++ ) {
if ( INTERSECT ( x, y, 1, 1, info[i].x_org, info[i].y_org, info[i].width, info[i].height ) ) {
mon->x = info[i].x_org;
mon->y = info[i].y_org;
mon->w = info[i].width;
mon->h = info[i].height;
break;
}
}
}
XFree ( info );
}
}
// determine which monitor holds the active window, or failing that the mouse pointer
void monitor_active ( workarea *mon )
{
Screen *screen = DefaultScreenOfDisplay ( display );
Window root = RootWindow ( display, XScreenNumberOfScreen ( screen ) );
int x, y;
if ( pointer_get ( root, &x, &y ) ) {
monitor_dimensions ( screen, x, y, mon );
return;
}
monitor_dimensions ( screen, 0, 0, mon );
}
// _NET_WM_STATE_*
int client_has_state ( client *c, Atom state )
{
int i;
for ( i = 0; i < c->states; i++ ) {
if ( c->state[i] == state ) {
return 1;
}
}
return 0;
}
// collect info on any window
// doesn't have to be a window we'll end up managing
client* window_client ( Window win )
{
if ( win == 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
XWindowAttributes *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 ( XWindowAttributes ) );
XGetTransientForHint ( display, win, &c->trans );
c->states = window_get_atom_prop ( win, netatoms[_NET_WM_STATE], c->state, CLIENTSTATE );
char *name;
if ( ( name = window_get_text_prop ( c->window, netatoms[_NET_WM_NAME] ) ) && name ) {
snprintf ( c->title, CLIENTTITLE, "%s", name );
g_free ( name );
}
else if ( XFetchName ( display, c->window, &name ) ) {
snprintf ( c->title, CLIENTTITLE, "%s", name );
XFree ( name );
}
name = window_get_text_prop ( c->window, XInternAtom ( display, "WM_WINDOW_ROLE", False ) );
if ( name != NULL ) {
snprintf ( c->role, CLIENTROLE, "%s", name );
XFree ( name );
}
XClassHint chint;
if ( XGetClassHint ( display, c->window, &chint ) ) {
snprintf ( c->class, CLIENTCLASS, "%s", chint.res_class );
snprintf ( c->name, CLIENTNAME, "%s", chint.res_name );
XFree ( chint.res_class );
XFree ( chint.res_name );
}
monitor_dimensions ( c->xattr.screen, c->xattr.x, c->xattr.y, &c->monitor );
winlist_append ( cache_client, c->window, c );
return c;
}
unsigned int windows_modmask;
KeySym windows_keysym;
unsigned int rundialog_modmask;
KeySym rundialog_keysym;
unsigned int sshdialog_modmask;
KeySym sshdialog_keysym;
Window main_window = None;
GC gc = NULL;
#include "textbox.h"
void menu_hide_arrow_text ( int filtered_lines, int selected, int max_elements,
textbox *arrowbox_top, textbox *arrowbox_bottom )
{
if ( arrowbox_top == NULL || arrowbox_bottom == NULL ) {
return;
}
int page = ( filtered_lines > 0 ) ? selected / max_elements : 0;
int npages = ( filtered_lines > 0 ) ? ( ( filtered_lines + max_elements - 1 ) / max_elements ) : 1;
if ( !( page != 0 && npages > 1 ) ) {
textbox_hide ( arrowbox_top );
}
if ( !( ( npages - 1 ) != page && npages > 1 ) ) {
textbox_hide ( arrowbox_bottom );
}
}
void menu_set_arrow_text ( int filtered_lines, int selected, int max_elements,
textbox *arrowbox_top, textbox *arrowbox_bottom )
{
if ( arrowbox_top == NULL || arrowbox_bottom == NULL ) {
return;
}
if ( filtered_lines == 0 || max_elements == 0 ) {
return;
}
int page = ( filtered_lines > 0 ) ? selected / max_elements : 0;
int npages = ( filtered_lines > 0 ) ? ( ( filtered_lines + max_elements - 1 ) / max_elements ) : 1;
int entry = selected % max_elements;
if ( page != 0 && npages > 1 ) {
textbox_show ( arrowbox_top );
textbox_font ( arrowbox_top, ( entry != 0 ) ? NORMAL : HIGHLIGHT );
textbox_draw ( arrowbox_top );
}
if ( ( npages - 1 ) != page && npages > 1 ) {
textbox_show ( arrowbox_bottom );
textbox_font ( arrowbox_bottom, ( entry != ( max_elements - 1 ) ) ? NORMAL : HIGHLIGHT );
textbox_draw ( arrowbox_bottom );
}
}
int window_match ( char **tokens, __attribute__( ( unused ) ) const char *input, int index, void *data )
{
int match = 1;
winlist *ids = ( winlist * ) data;
client *c = window_client ( ids->array[index] );
if ( tokens ) {
for ( int j = 0; match && tokens[j]; j++ ) {
int test = 0;
if ( !test && c->title[0] != '\0' ) {
char *sml = g_utf8_casefold ( c->title, -1 );
char *key = g_utf8_collate_key ( sml, -1 );
test = ( strstr ( key, tokens[j] ) != NULL );
g_free ( sml ); g_free ( key );
}
if ( !test && c->class[0] != '\0' ) {
char *sml = g_utf8_casefold ( c->class, -1 );
char *key = g_utf8_collate_key ( sml, -1 );
test = ( strstr ( key, tokens[j] ) != NULL );
g_free ( sml ); g_free ( key );
}
if ( !test && c->role[0] != '\0' ) {
char *sml = g_utf8_casefold ( c->role, -1 );
char *key = g_utf8_collate_key ( sml, -1 );
test = ( strstr ( key, tokens[j] ) != NULL );
g_free ( sml ); g_free ( key );
}
if ( !test && c->name[0] != '\0' ) {
char *sml = g_utf8_casefold ( c->name, -1 );
char *key = g_utf8_collate_key ( sml, -1 );
test = ( strstr ( key, tokens[j] ) != NULL );
g_free ( sml ); g_free ( key );
}
if ( test == 0 ) {
match = 0;
}
}
}
return match;
}
static int lev_sort ( const void *p1, const void *p2, void *arg )
{
const int *a = p1;
const int *b = p2;
int *distances = arg;
return distances[*a] - distances[*b];
}
static int dist ( const char *s, const char *t, int *d, int ls, int lt, int i, int j )
{
if ( d[i * ( lt + 1 ) + j] >= 0 ) {
return d[i * ( lt + 1 ) + j];
}
int x;
if ( i == ls ) {
x = lt - j;
}
else if ( j == lt ) {
x = ls - i;
}
else if ( s[i] == t[j] ) {
x = dist ( s, t, d, ls, lt, i + 1, j + 1 );
}
else {
x = dist ( s, t, d, ls, lt, i + 1, j + 1 );
int y;
if ( ( y = dist ( s, t, d, ls, lt, i, j + 1 ) ) < x ) {
x = y;
}
if ( ( y = dist ( s, t, d, ls, lt, i + 1, j ) ) < x ) {
x = y;
}
x++;
}
return d[i * ( lt + 1 ) + j] = x;
}
static int levenshtein ( const char *s, const char *t )
{
int ls = strlen ( s ), lt = strlen ( t );
int d[( ls + 1 ) * ( lt + 1 )];
for ( int i = 0; i < ( ( ls + 1 ) * ( lt + 1 ) ); i++ ) {
d[i] = -1;
}
return dist ( s, t, d, ls, lt, 0, 0 );
}
void window_set_opacity ( Display *display, Window box, unsigned int opacity )
{
// Hack to set window opacity.
unsigned int opacity_set = ( unsigned int ) ( ( opacity / 100.0 ) * UINT32_MAX );
XChangeProperty ( display, box, netatoms[_NET_WM_WINDOW_OPACITY],
XA_CARDINAL, 32, PropModeReplace,
( unsigned char * ) &opacity_set, 1L );
}
Window create_window ( Display *display )
{
Screen *screen = DefaultScreenOfDisplay ( display );
Window root = RootWindow ( display, XScreenNumberOfScreen ( screen ) );
Window box = XCreateSimpleWindow ( display, root, 0, 0, 200, 100,
config.menu_bw,
color_get ( display, config.menu_bc ),
color_get ( display, config.menu_bg ) );
XSelectInput ( display, box, ExposureMask | ButtonPressMask );
gc = XCreateGC ( display, box, 0, 0 );
XSetLineAttributes ( display, gc, 2, LineOnOffDash, CapButt, JoinMiter );
XSetForeground ( display, gc, color_get ( display, config.menu_bc ) );
// make it an unmanaged window
window_set_atom_prop ( box, netatoms[_NET_WM_STATE], &netatoms[_NET_WM_STATE_ABOVE], 1 );
XSetWindowAttributes sattr;
sattr.override_redirect = True;
XChangeWindowAttributes ( display, box, CWOverrideRedirect, &sattr );
// Set the WM_NAME
XStoreName ( display, box, "rofi" );
window_set_opacity ( display, box, config.window_opacity );
return box;
}
// State of the menu.
typedef struct MenuState
{
unsigned int max_elements;
unsigned int max_rows;
unsigned int columns;
// window width,height
unsigned int w, h;
int x, y;
unsigned int element_width;
// Update/Refilter list.
int update;
int refilter;
// Entries
textbox *text;
textbox *prompt_tb;
textbox *arrowbox_top;
textbox *arrowbox_bottom;
textbox **boxes;
char **filtered;
int *distance;
int *line_map;
unsigned int num_lines;
// Selected element.
unsigned int selected;
unsigned int filtered_lines;
// Last offset in paginating.
unsigned int last_offset;
KeySym prev_key;
Time last_button_press;
int quit;
int init;
// Return state
int *selected_line;
MenuReturn retv;
}MenuState;
/**
* @param state Internal state of the menu.
*
* Free the allocated fields in the state.
*/
static void menu_free_state ( MenuState *state )
{
textbox_free ( state->text );
textbox_free ( state->prompt_tb );
textbox_free ( state->arrowbox_bottom );
textbox_free ( state->arrowbox_top );
for ( unsigned int i = 0; i < state->max_elements; i++ ) {
textbox_free ( state->boxes[i] );
}
g_free ( state->boxes );
g_free ( state->filtered );
g_free ( state->line_map );
g_free ( state->distance );
}
/**
* @param x [out] the calculated x position.
* @param y [out] the calculated y position.
* @param mon the workarea.
* @param h the required height of the window.
* @param w the required width of the window.
*/
static void calculate_window_position ( MenuState *state, const workarea *mon )
{
// Default location is center.
state->y = mon->y + ( mon->h - state->h - config.menu_bw * 2 ) / 2;
state->x = mon->x + ( mon->w - state->w - config.menu_bw * 2 ) / 2;
// Determine window location
switch ( config.location )
{
case WL_NORTH_WEST:
state->x = mon->x;
case WL_NORTH:
state->y = mon->y;
break;
case WL_NORTH_EAST:
state->y = mon->y;
case WL_EAST:
state->x = mon->x + mon->w - state->w - config.menu_bw * 2;
break;
case WL_EAST_SOUTH:
state->x = mon->x + mon->w - state->w - config.menu_bw * 2;
case WL_SOUTH:
state->y = mon->y + mon->h - state->h - config.menu_bw * 2;
break;
case WL_SOUTH_WEST:
state->y = mon->y + mon->h - state->h - config.menu_bw * 2;
case WL_WEST:
state->x = mon->x;
break;
case WL_CENTER:
default:
break;
}
// Apply offset.
state->x += config.x_offset;
state->y += config.y_offset;
}
/**
* @param state Internal state of the menu.
* @param num_lines the number of entries passed to the menu.
*
* Calculate the number of rows, columns and elements to display based on the
* configuration and available data.
*/
static void menu_calculate_rows_columns ( MenuState *state )
{
state->columns = config.menu_columns;
state->max_elements = MIN ( config.menu_lines * state->columns, state->num_lines );
// Calculate the number or rows. We do this by getting the num_lines rounded up to X columns
// (num elements is better name) then dividing by columns.
state->max_rows = MIN ( config.menu_lines,
(unsigned int) (
( state->num_lines + ( state->columns - state->num_lines % state->columns ) %
state->columns ) / ( state->columns )
) );
if ( config.fixed_num_lines == TRUE ) {
state->max_elements = config.menu_lines * state->columns;
state->max_rows = config.menu_lines;
// If it would fit in one column, only use one column.
if ( state->num_lines < state->max_elements ) {
state->columns = ( state->num_lines + ( state->max_rows - state->num_lines % state->max_rows ) %
state->max_rows ) / state->max_rows;
state->max_elements = config.menu_lines * state->columns;
}
// Sanitize.
if ( state->columns == 0 ) {
state->columns = 1;
}
}
// More hacks.
if ( config.hmode == TRUE ) {
state->max_rows = 1;
}
}
/**
* @param state Internal state of the menu.
* @param mon the dimensions of the monitor rofi is displayed on.
*
* Calculate the width of the window and the width of an element.
*/
static void menu_calculate_window_and_element_width ( MenuState *state, workarea *mon )
{
if ( config.menu_width < 0 ) {
double fw = textbox_get_estimated_char_width ( );
state->w = -( fw * config.menu_width );
state->w += 2 * config.padding + 4; // 4 = 2*SIDE_MARGIN
// Compensate for border width.
state->w -= config.menu_bw * 2;
}
else{
// Calculate as float to stop silly, big rounding down errors.
state->w = config.menu_width < 101 ? ( mon->w / 100.0f ) * ( float ) config.menu_width : config.menu_width;
// Compensate for border width.
state->w -= config.menu_bw * 2;
}
if(state->columns > 0 ) {
state->element_width = state->w - ( 2 * ( config.padding ) );
// Divide by the # columns
state->element_width = ( state->element_width - ( state->columns - 1 ) * LINE_MARGIN ) / state->columns;
if ( config.hmode == TRUE ) {
state->element_width = ( state->w - ( 2 * ( config.padding ) ) - state->max_elements * LINE_MARGIN ) / (
state->max_elements + 1 );
}
}
}
/**
* @param state Internal state of the menu.
* @param key the Key being pressed.
* @param modstate the modifier state.
*
* Keyboard navigation through the elements.
*/
static void menu_keyboard_navigation ( MenuState *state, KeySym key, unsigned int modstate )
{
if ( key == XK_Escape
// pressing one of the global key bindings closes the switcher. this allows fast closing of the menu if an item is not selected
|| ( ( windows_modmask == AnyModifier || modstate & windows_modmask ) && key == windows_keysym )
|| ( ( rundialog_modmask == AnyModifier || modstate & rundialog_modmask ) && key == rundialog_keysym )
|| ( ( sshdialog_modmask == AnyModifier || modstate & sshdialog_modmask ) && key == sshdialog_keysym )
) {
state->retv = MENU_CANCEL;
state->quit = TRUE;
}
// Up, Ctrl-p or Shift-Tab
else if ( key == XK_Up || ( key == XK_Tab && modstate & ShiftMask ) ||
( key == XK_p && modstate & ControlMask ) ) {
if ( state->selected == 0 ) {
state->selected = state->filtered_lines;
}
if ( state->selected > 0 ) {
state->selected--;
}
state->update = TRUE;
}
else if ( key == XK_Tab ) {
if ( state->filtered_lines == 1 ) {
if ( state->filtered[state->selected] ) {
state->retv = MENU_OK;
*( state->selected_line ) = state->line_map[state->selected];
state->quit = 1;
}
else{
fprintf ( stderr, "We should never hit this." );
abort ();
}
return;
}
// Double tab!
if ( state->filtered_lines == 0 && key == state->prev_key ) {
state->retv = MENU_NEXT;
*( state->selected_line ) = 0;
state->quit = TRUE;
}
else{
state->selected = state->selected < state->filtered_lines - 1 ? MIN (
state->filtered_lines - 1, state->selected + 1 ) : 0;
state->update = TRUE;
}
}
// Down, Ctrl-n
else if ( key == XK_Down ||
( key == XK_n && ( modstate & ControlMask ) ) ) {
state->selected = state->selected < state->filtered_lines - 1 ? MIN (
state->filtered_lines - 1, state->selected + 1 ) : 0;
state->update = TRUE;
}
else if ( key == XK_Page_Up && ( modstate & ControlMask ) ) {
if ( state->selected < state->max_rows ) {
state->selected = 0;
}
else{
state->selected -= state->max_rows;
}
state->update = TRUE;
}
else if ( key == XK_Page_Down && ( modstate & ControlMask ) ) {
state->selected += state->max_rows;
if ( state->selected >= state->filtered_lines ) {
state->selected = state->filtered_lines - 1;
}
state->update = TRUE;
}
else if ( key == XK_Page_Up ) {
if ( state->selected < state->max_elements ) {
state->selected = 0;
}
else{
state->selected -= ( state->max_elements );
}
state->update = TRUE;
}
else if ( key == XK_Page_Down ) {
state->selected += ( state->max_elements );
if ( state->selected >= state->filtered_lines ) {
state->selected = state->filtered_lines - 1;
}
state->update = TRUE;
}
else if ( key == XK_Home || key == XK_KP_Home ) {
state->selected = 0;
state->update = TRUE;
}
else if ( key == XK_End || key == XK_KP_End ) {
state->selected = state->filtered_lines - 1;
state->update = TRUE;
}
state->prev_key = key;
}
/**
* @param state Internal state of the menu.
* @param xbe The mouse button press event.
*
* mouse navigation through the elements.
*
* TODO: Scroll wheel.
*/
static void menu_mouse_navigation ( MenuState *state, XButtonEvent *xbe )
{
if ( xbe->window == state->arrowbox_top->window ) {
// Page up.
if ( state->selected < state->max_rows ) {
state->selected = 0;
}
else{
state->selected -= state->max_elements;
}
state->update = TRUE;
}
else if ( xbe->window == state->arrowbox_bottom->window ) {
// Page down.
state->selected += state->max_elements;
if ( state->selected >= state->filtered_lines ) {
state->selected = state->filtered_lines - 1;
}
state->update = TRUE;
}
else {
for ( unsigned int i = 0; i < state->max_elements; i++ ) {
if ( ( xbe->window ) == ( state->boxes[i]->window ) ) {
// Only allow items that are visible to be selected.
if ( ( state->last_offset + i ) >= state->filtered_lines ) {
continue;
}
//
state->selected = state->last_offset + i;
state->update = TRUE;
if ( ( xbe->time - state->last_button_press ) < 200 ) {
state->retv = MENU_OK;
*( state->selected_line ) = state->line_map[state->selected];
// Quit
state->quit = TRUE;
break;
}
state->last_button_press = xbe->time;
}
}
}
}
static void menu_refilter ( MenuState *state, char **lines, menu_match_cb mmc, void *mmc_data, int sorting )
{
unsigned int i, j = 0;
if ( strlen ( state->text->text ) > 0 ) {
char **tokens = tokenize ( state->text->text );
// input changed
for ( i = 0; i < state->num_lines; i++ ) {
int match = mmc ( tokens, lines[i], i, mmc_data );
// If each token was matched, add it to list.
if ( match ) {
state->line_map[j] = i;
if ( sorting ) {
state->distance[i] = levenshtein ( state->text->text, lines[i] );
}
// Try to look-up the selected line and highlight that.
// This is needed 'hack' to fix the dmenu 'next row' modi.
// int to unsigned int is valid because we check negativeness of
// selected_line
if ( state->init == TRUE && ( state->selected_line ) != NULL &&
( *( state->selected_line ) ) >= 0 &&
( (unsigned int) ( *( state->selected_line ) ) ) == i ) {
state->selected = j;
state->init = FALSE;
}
j++;
}
}
if ( sorting ) {
qsort_r ( state->line_map, j, sizeof ( int ), lev_sort, state->distance );
}
// Update the filtered list.
for ( i = 0; i < j; i++ ) {
state->filtered[i] = lines[state->line_map[i]];
}
for ( i = j; i < state->num_lines; i++ ) {
state->filtered[i] = NULL;
}
// Cleanup + bookkeeping.
state->filtered_lines = j;
g_strfreev ( tokens );
}
else{
for ( i = 0; i < state->num_lines; i++ ) {
state->filtered[i] = lines[i];
state->line_map[i] = i;
}
state->filtered_lines = state->num_lines;
}
state->selected = MIN ( state->selected, state->filtered_lines - 1 );
state->refilter = FALSE;
}
static void menu_draw ( MenuState *state )
{
unsigned int i, offset = 0;
// selected row is always visible.
// If selected is visible do not scroll.
if ( ( ( state->selected - ( state->last_offset ) ) < ( state->max_elements ) )
&& ( state->selected >= ( state->last_offset ) ) ) {
offset = state->last_offset;
}
else{
// Do paginating
int page = ( state->max_elements > 0 ) ? ( state->selected / state->max_elements ) : 0;
offset = page * state->max_elements;
state->last_offset = offset;
}
for ( i = 0; i < state->max_elements; i++ ) {
if ( ( i + offset ) >= state->num_lines || state->filtered[i + offset] == NULL ) {
textbox_font ( state->boxes[i], NORMAL );
textbox_text ( state->boxes[i], "" );
}
else{
char *text = state->filtered[i + offset];
TextBoxFontType tbft = ( i + offset ) == state->selected ? HIGHLIGHT : NORMAL;
textbox_font ( state->boxes[i], tbft );
textbox_text ( state->boxes[i], text );
}
textbox_draw ( state->boxes[i] );
}
}
static void menu_update ( MenuState *state )
{
menu_hide_arrow_text ( state->filtered_lines, state->selected,
state->max_elements, state->arrowbox_top,
state->arrowbox_bottom );
textbox_draw ( state->text );
textbox_draw ( state->prompt_tb );
menu_draw ( state );
menu_set_arrow_text ( state->filtered_lines, state->selected,
state->max_elements, state->arrowbox_top,
state->arrowbox_bottom );
// Why do we need the specian -1?
if ( config.hmode == FALSE ) {
int line_height = textbox_get_height ( state->text );
XDrawLine ( display, main_window, gc, ( config.padding ),
line_height + ( config.padding ) + ( LINE_MARGIN - 2 ) / 2,
state->w - ( ( config.padding ) ) - 1,
line_height + ( config.padding ) + ( LINE_MARGIN - 2 ) / 2 );
}
state->update = FALSE;
}
/**
* @param state Internal state of the menu.
* @param xse X selection event.
*
* Handle paste event.
*/
static void menu_paste ( MenuState *state, XSelectionEvent *xse )
{
if ( xse->property == netatoms[UTF8_STRING] ) {
char *pbuf = NULL;
int di;
unsigned long dl, rm;
Atom da;
/* we have been given the current selection, now insert it into input */
XGetWindowProperty (
display,
main_window,
netatoms[UTF8_STRING],
0,
256 / 4, // max length in words.
False, // Do not delete clipboard.
netatoms[UTF8_STRING], &da, &di, &dl, &rm, (unsigned char * *) &pbuf );
// If There was remaining data left.. lets ignore this.
// Only accept it when we get bytes!
if ( di == 8 ) {
char *index;
if ( ( index = strchr ( pbuf, '\n' ) ) != NULL ) {
// Calc new length;
dl = index - pbuf;
}
// Create a NULL terminated string. I am not sure how the data is returned.
// With or without trailing 0
char str[dl + 1];
memcpy ( str, pbuf, dl );
str[dl] = '\0';
// Insert string move cursor.
textbox_insert ( state->text, state->text->cursor, str );
textbox_cursor ( state->text, state->text->cursor + dl );
// Force a redraw and refiltering of the text.
state->update = TRUE;
state->refilter = TRUE;
}
XFree ( pbuf );
}
}
MenuReturn menu ( char **lines, unsigned int num_lines, char **input, char *prompt, Time *time,
int *shift, menu_match_cb mmc, void *mmc_data, int *selected_line, int sorting )
{
MenuState state = {
.selected_line = selected_line,
.retv = MENU_CANCEL,
.prev_key = 0,
.last_button_press = 0,
.last_offset = 0,
.num_lines = num_lines,
.distance = NULL,
.init = TRUE,
.quit = FALSE,
.filtered_lines = 0,
.max_elements = 0,
// We want to filter on the first run.
.refilter = TRUE,
.update = FALSE
};
unsigned int i;
workarea mon;
menu_calculate_rows_columns ( &state );
// Get active monitor size.
monitor_active ( &mon );
// main window isn't explicitly destroyed in case we switch modes. Reusing it prevents flicker
XWindowAttributes attr;
if ( main_window == None || XGetWindowAttributes ( display, main_window, &attr ) == 0 ) {
main_window = create_window ( display );
}
menu_calculate_window_and_element_width ( &state, &mon );
// search text input
state.prompt_tb = textbox_create ( main_window, TB_AUTOHEIGHT | TB_AUTOWIDTH,
( config.padding ), ( config.padding ),
0, 0, NORMAL, prompt );
state.text = textbox_create ( main_window, TB_AUTOHEIGHT | TB_EDITABLE,
( config.padding ) + textbox_get_width ( state.prompt_tb ),
( config.padding ),
( ( config.hmode == TRUE ) ?
state.element_width : ( state.w - ( 2 * ( config.padding ) ) ) )
- textbox_get_width ( state.prompt_tb ), 1,
NORMAL,
( input != NULL ) ? *input : "" );
textbox_show ( state.text );
textbox_show ( state.prompt_tb );
int line_height = textbox_get_height ( state.text );
// filtered list display
state.boxes = g_malloc0_n ( state.max_elements, sizeof ( textbox* ) );
for ( i = 0; i < state.max_elements; i++ ) {
int line = ( i ) % state.max_rows + ( ( config.hmode == FALSE ) ? 1 : 0 );
int col = ( i ) / state.max_rows + ( ( config.hmode == FALSE ) ? 0 : 1 );
int ex = ( config.padding ) + col * ( state.element_width + LINE_MARGIN );
int ey = line * line_height + config.padding + ( ( config.hmode == TRUE ) ? 0 : LINE_MARGIN );
state.boxes[i] = textbox_create ( main_window, 0, ex, ey, state.element_width, line_height, NORMAL, "" );
textbox_show ( state.boxes[i] );
}
// Arrows
state.arrowbox_top = textbox_create ( main_window, TB_AUTOHEIGHT | TB_AUTOWIDTH,
( config.padding ),
( config.padding ),
0, 0,
NORMAL,
( config.hmode == FALSE ) ? "↑" : "←" );
state.arrowbox_bottom = textbox_create ( main_window, TB_AUTOHEIGHT | TB_AUTOWIDTH,
( config.padding ),
( config.padding ),
0, 0,
NORMAL,
( config.hmode == FALSE ) ? "↓" : "→" );
if ( config.hmode == FALSE ) {
textbox_move ( state.arrowbox_top,
state.w - config.padding - state.arrowbox_top->w,
config.padding + line_height + LINE_MARGIN );
textbox_move ( state.arrowbox_bottom,
state.w - config.padding - state.arrowbox_bottom->w,
config.padding + state.max_rows * line_height + LINE_MARGIN );
}
else {
textbox_move ( state.arrowbox_bottom,
state.w - config.padding - state.arrowbox_top->w,
config.padding );
textbox_move ( state.arrowbox_top,
state.w - config.padding - state.arrowbox_bottom->w - state.arrowbox_top->w,
config.padding );
}
// filtered list
state.filtered = (char * *) g_malloc0_n ( state.num_lines, sizeof ( char* ) );
state.line_map = g_malloc0_n ( state.num_lines, sizeof ( int ) );
if ( sorting ) {
state.distance = (int *) g_malloc0_n ( state.num_lines, sizeof ( int ) );
}
// resize window vertically to suit
// Subtract the margin of the last row.
state.h = line_height * ( state.max_rows + 1 ) + ( config.padding ) * 2 + LINE_MARGIN;
if ( config.hmode == TRUE ) {
state.h = line_height + ( config.padding ) * 2;
}
// Move the window to the correct x,y position.
calculate_window_position ( &state, &mon );
XMoveResizeWindow ( display, main_window, state.x, state.y, state.w, state.h );
// Display it.
XMapRaised ( display, main_window );
// if grabbing keyboard failed, fall through
if ( take_keyboard ( main_window ) ) {
state.selected = 0;
if ( state.selected_line != NULL ) {
// The cast to unsigned in here is valid, we checked if selected_line > 0.
// So its maximum range is 0-2³¹, well within the num_lines range.
if ( *( state.selected_line ) >= 0 && (unsigned int) ( *( state.selected_line ) ) <= state.num_lines ) {
state.selected = *( state.selected_line );
}
}
state.quit = FALSE;
while ( !state.quit ) {
// If something changed, refilter the list. (paste or text entered)
if ( state.refilter ) {
menu_refilter ( &state, lines, mmc, mmc_data, sorting );
}
// Update if requested.
if ( state.update ) {
menu_update ( &state );
}
// Wait for event.
XEvent ev;
XNextEvent ( display, &ev );
// Handle event.
if ( ev.type == Expose ) {
while ( XCheckTypedEvent ( display, Expose, &ev ) ) {
;
}
state.update = TRUE;
}
// Button press event.
else if ( ev.type == ButtonPress ) {
while ( XCheckTypedEvent ( display, ButtonPress, &ev ) ) {
;
}
menu_mouse_navigation ( &state, &( ev.xbutton ) );
}
// Paste event.
else if ( ev.type == SelectionNotify ) {
while ( XCheckTypedEvent ( display, SelectionNotify, &ev ) ) {
;
}
menu_paste ( &state, &( ev.xselection ) );
}
// Key press event.
else if ( ev.type == KeyPress ) {
while ( XCheckTypedEvent ( display, KeyPress, &ev ) ) {
;
}
if ( time ) {
*time = ev.xkey.time;
}
KeySym key = XkbKeycodeToKeysym ( display, ev.xkey.keycode, 0, 0 );
// Handling of paste
if ( ( ( ( ev.xkey.state & ControlMask ) == ControlMask ) && key == XK_v ) ) {
XConvertSelection ( display, ( ev.xkey.state & ShiftMask ) ?
XA_PRIMARY : netatoms[CLIPBOARD],
netatoms[UTF8_STRING], netatoms[UTF8_STRING], main_window, CurrentTime );
}
else if ( key == XK_Insert ) {
XConvertSelection ( display, ( ev.xkey.state & ShiftMask ) ?
XA_PRIMARY : netatoms[CLIPBOARD],
netatoms[UTF8_STRING], netatoms[UTF8_STRING], main_window, CurrentTime );
}
// Menu navigation.
else if ( ( ( ev.xkey.state & ShiftMask ) == ShiftMask ) &&
key == XK_slash ) {
state.retv = MENU_NEXT;
*( state.selected_line ) = 0;
state.quit = TRUE;
break;
}
// Switcher short-cut
else if ( ( ( ev.xkey.state & Mod1Mask ) == Mod1Mask ) &&
key >= XK_1 && key <= XK_9 ) {
*( state.selected_line ) = ( key - XK_1 );
state.retv = MENU_QUICK_SWITCH;
state.quit = TRUE;
break;
}
// Special delete entry command.
else if ( ( ( ev.xkey.state & ShiftMask ) == ShiftMask ) &&
key == XK_Delete ) {
if ( state.filtered[state.selected] != NULL ) {
*( state.selected_line ) = state.line_map[state.selected];
state.retv = MENU_ENTRY_DELETE;
state.quit = TRUE;
break;
}
}
else{
int rc = textbox_keypress ( state.text, &ev );
// Row is accepted.
if ( rc < 0 ) {
if ( shift != NULL ) {
( *shift ) = ( ( ev.xkey.state & ShiftMask ) == ShiftMask );
}
// If a valid item is selected, return that..
if ( state.selected < state.filtered_lines && state.filtered[state.selected] != NULL ) {
state.retv = MENU_OK;
*( state.selected_line ) = state.line_map[state.selected];
}
// No item selected, but user entered something
else if ( strlen ( state.text->text ) > 0 ) {
state.retv = MENU_CUSTOM_INPUT;
}
// Nothing entered and nothing selected.
else{
state.retv = MENU_CANCEL;
}
state.quit = TRUE;
}
// Key press is handled by entry box.
else if ( rc > 0 ) {
state.refilter = TRUE;
state.update = TRUE;
}
// Other keys.
else{
// unhandled key
menu_keyboard_navigation ( &state, key, ev.xkey.state );
}
}
}
}
release_keyboard ();
}
// Update input string.
g_free ( *input );
*input = g_strdup ( state.text->text );
menu_free_state ( &state );
return state.retv;
}
void error_dialog ( char *msg )
{
MenuState state = {
.selected_line = NULL,
.retv = MENU_CANCEL,
.prev_key = 0,
.last_button_press = 0,
.last_offset = 0,
.num_lines = 0,
.distance = NULL,
.init = FALSE,
.quit = FALSE,
.filtered_lines = 0,
.columns = 0,
.update =TRUE,
};
workarea mon;
// Get active monitor size.
monitor_active ( &mon );
// main window isn't explicitly destroyed in case we switch modes. Reusing it prevents flicker
XWindowAttributes attr;
if ( main_window == None || XGetWindowAttributes ( display, main_window, &attr ) == 0 ) {
main_window = create_window ( display );
}
menu_calculate_window_and_element_width ( &state, &mon );
state.max_elements = 0;
state.text = textbox_create ( main_window, TB_AUTOHEIGHT,
( config.padding ),
( config.padding ),
( state.w - ( 2 * ( config.padding ) ) ),
1,
NORMAL,
( msg != NULL ) ? msg : "" );
textbox_show ( state.text );
int line_height = textbox_get_height ( state.text );
// resize window vertically to suit
state.h = line_height + ( config.padding ) * 2;
// Move the window to the correct x,y position.
calculate_window_position ( &state, &mon );
XMoveResizeWindow ( display, main_window, state.x, state.y, state.w, state.h );
// Display it.
XMapRaised ( display, main_window );
if ( take_keyboard ( main_window ) ) {
while(!state.quit) {
// Update if requested.
if ( state.update ) {
textbox_draw ( state.text );
state.update = FALSE;
}
// Wait for event.
XEvent ev;
XNextEvent ( display, &ev );
// Handle event.
if ( ev.type == Expose ) {
while ( XCheckTypedEvent ( display, Expose, &ev ) ) {
;
}
state.update = TRUE;
}
// Key press event.
else if ( ev.type == KeyPress ) {
while ( XCheckTypedEvent ( display, KeyPress, &ev ) ) {
;
}
state.quit = TRUE;
}
}
release_keyboard ();
}
}
SwitcherMode run_switcher_window ( char **input, G_GNUC_UNUSED void *data )
{
Screen *screen = DefaultScreenOfDisplay ( display );
Window root = RootWindow ( display, XScreenNumberOfScreen ( screen ) );
SwitcherMode retv = MODE_EXIT;
// find window list
Atom type;
int nwins;
Window wins[100];
int count = 0;
Window curr_win_id = 0;
// Get the active window so we can highlight this.
if ( !( window_get_prop ( root, netatoms[_NET_ACTIVE_WINDOW], &type,
&count, &curr_win_id, sizeof ( Window ) )
&& type == XA_WINDOW && count > 0 ) ) {
curr_win_id = 0;
}
if ( window_get_prop ( root, netatoms[_NET_CLIENT_LIST_STACKING],
&type, &nwins, wins, 100 * sizeof ( Window ) )
&& type == XA_WINDOW ) {
char pattern[50];
int i;
unsigned int classfield = 0;
unsigned long desktops = 0;
// 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...
winlist *ids = winlist_new ();
// calc widths of fields
for ( i = nwins - 1; i > -1; i-- ) {
client *c;
if ( ( c = window_client ( wins[i] ) )
&& !c->xattr.override_redirect
&& !client_has_state ( c, netatoms[_NET_WM_STATE_SKIP_PAGER] )
&& !client_has_state ( c, netatoms[_NET_WM_STATE_SKIP_TASKBAR] ) ) {
classfield = MAX ( classfield, strlen ( c->class ) );
#ifdef HAVE_I3_IPC_H
// In i3 mode, skip the i3bar completely.
if ( config_i3_mode && strstr ( c->class, "i3bar" ) != NULL ) {
continue;
}
#endif
if ( c->window == curr_win_id ) {
c->active = TRUE;
}
winlist_append ( ids, c->window, NULL );
}
}
// Create pattern for printing the line.
if ( !window_get_cardinal_prop ( root, netatoms[_NET_NUMBER_OF_DESKTOPS], &desktops, 1 ) ) {
desktops = 1;
}
#ifdef HAVE_I3_IPC_H
if ( config_i3_mode ) {
sprintf ( pattern, "%%-%ds %%s", MAX ( 5, classfield ) );
}
else{
#endif
sprintf ( pattern, "%%-%ds %%-%ds %%s", desktops < 10 ? 1 : 2, MAX ( 5, classfield ) );
#ifdef HAVE_I3_IPC_H
}
#endif
char **list = g_malloc0_n ( ( ids->len + 1 ), sizeof ( char* ) );
unsigned int lines = 0;
// build the actual list
Window w = 0;
winlist_ascend ( ids, i, w )
{
client *c;
if ( ( c = window_client ( w ) ) ) {
// final line format
unsigned long wmdesktop;
char desktop[5];
desktop[0] = 0;
char *line = g_malloc ( strlen ( c->title ) + strlen ( c->class ) + classfield + 50 );
#ifdef HAVE_I3_IPC_H
if ( !config_i3_mode ) {
#endif
// find client's desktop. this is zero-based, so we adjust by since most
// normal people don't think like this :-)
if ( !window_get_cardinal_prop ( c->window, netatoms[_NET_WM_DESKTOP], &wmdesktop, 1 ) ) {
wmdesktop = 0xFFFFFFFF;
}
if ( wmdesktop < 0xFFFFFFFF ) {
sprintf ( desktop, "%d", (int) wmdesktop + 1 );
}
sprintf ( line, pattern, desktop, c->class, c->title );
#ifdef HAVE_I3_IPC_H
}
else{
sprintf ( line, pattern, c->class, c->title );
}
#endif
list[lines++] = line;
}
}
Time time;
int selected_line = 0;
MenuReturn mretv = menu ( list, lines, input, "window:", &time, NULL,
window_match, ids, &selected_line, config.levenshtein_sort );
if ( mretv == MENU_NEXT ) {
retv = NEXT_DIALOG;
}
else if ( mretv == MENU_QUICK_SWITCH ) {
retv = selected_line;
}
else if ( mretv == MENU_OK && list[selected_line] ) {
#ifdef HAVE_I3_IPC_H
if ( config_i3_mode ) {
// Hack for i3.
focus_window_i3 ( i3_socket_path, ids->array[selected_line] );
}
else
#endif
{
// Change to the desktop of the selected window/client.
// TODO: get rid of strtol
window_send_message ( root, root, netatoms[_NET_CURRENT_DESKTOP], strtol ( list[selected_line], NULL, 10 ) - 1,
SubstructureNotifyMask | SubstructureRedirectMask, time );
XSync ( display, False );
window_send_message ( root, ids->array[selected_line], netatoms[_NET_ACTIVE_WINDOW], 2, // 2 = pager
SubstructureNotifyMask | SubstructureRedirectMask, time );
}
}
g_strfreev ( list );
winlist_free ( ids );
}
return retv;
}
static int run_dmenu ()
{
int ret_state;
textbox_setup (
config.menu_bg, config.menu_fg,
config.menu_hlbg,
config.menu_hlfg );
char *input = NULL;
// Dmenu modi has a return state.
ret_state = dmenu_switcher_dialog ( &input );
g_free ( input );
// Cleanup font setup.
textbox_cleanup ();
return ret_state;
}
static void run_switcher ( int do_fork, SwitcherMode mode )
{
// we fork because it's technically possible to have multiple window
// lists up at once on a zaphod multihead X setup.
// this also happens to isolate the Xft font stuff in a child process
// that gets cleaned up every time. that library shows some valgrind
// strangeness...
if ( do_fork == TRUE ) {
if ( fork () ) {
return;
}
display = XOpenDisplay ( 0 );
XSync ( display, True );
}
// Because of the above fork, we want to do this here.
// Make sure this is isolated to its own thread.
textbox_setup (
config.menu_bg, config.menu_fg,
config.menu_hlbg,
config.menu_hlfg );
char *input = NULL;
// Otherwise check if requested mode is enabled.
if ( switchers[mode].cb != NULL ) {
do {
SwitcherMode retv;
retv = switchers[mode].cb ( &input, switchers[mode].cb_data );
// Find next enabled
if ( retv == NEXT_DIALOG ) {
mode = ( mode + 1 ) % num_switchers;
}
else if ( retv == RELOAD_DIALOG ) {
// do nothing.
}
else if ( retv < MODE_EXIT ) {
mode = ( retv ) % num_switchers;
}
else {
mode = retv;
}
} while ( mode != MODE_EXIT );
}
g_free ( input );
// Cleanup font setup.
textbox_cleanup ();
if ( do_fork == TRUE ) {
exit ( EXIT_SUCCESS );
}
}
// KeyPress event
static void handle_keypress ( XEvent *ev )
{
KeySym key = XkbKeycodeToKeysym ( display, ev->xkey.keycode, 0, 0 );
if ( ( windows_modmask == AnyModifier || ev->xkey.state & windows_modmask ) &&
key == windows_keysym ) {
int index = switcher_get ( "window" );
if ( index >= 0 ) {
run_switcher ( TRUE, index );
}
}
if ( ( rundialog_modmask == AnyModifier || ev->xkey.state & rundialog_modmask ) &&
key == rundialog_keysym ) {
int index = switcher_get ( "run" );
if ( index >= 0 ) {
run_switcher ( TRUE, index );
}
}
if ( ( sshdialog_modmask == AnyModifier || ev->xkey.state & sshdialog_modmask ) &&
key == sshdialog_keysym ) {
int index = switcher_get ( "ssh" );
if ( index >= 0 ) {
run_switcher ( TRUE, index );
}
}
}
// convert a Mod+key arg to mod mask and keysym
static void parse_key ( char *combo, unsigned int *mod, KeySym *key )
{
unsigned int modmask = 0;
if ( strcasestr ( combo, "shift" ) ) {
modmask |= ShiftMask;
}
if ( strcasestr ( combo, "control" ) ) {
modmask |= ControlMask;
}
if ( strcasestr ( combo, "mod1" ) ) {
modmask |= Mod1Mask;
}
if ( strcasestr ( combo, "alt" ) ) {
modmask |= Mod1Mask;
}
if ( strcasestr ( combo, "mod2" ) ) {
modmask |= Mod2Mask;
}
if ( strcasestr ( combo, "mod3" ) ) {
modmask |= Mod3Mask;
}
if ( strcasestr ( combo, "mod4" ) ) {
modmask |= Mod4Mask;
}
if ( strcasestr ( combo, "mod5" ) ) {
modmask |= Mod5Mask;
}
*mod = modmask ? modmask : AnyModifier;
char i = strlen ( combo );
while ( i > 0 && !strchr ( "-+", combo[i - 1] ) ) {
i--;
}
KeySym sym = XStringToKeysym ( combo + i );
if ( sym == NoSymbol || ( !modmask && ( strchr ( combo, '-' ) || strchr ( combo, '+' ) ) ) ) {
fprintf ( stderr, "sorry, cannot understand key combination: %s\n", combo );
exit ( EXIT_FAILURE );
}
*key = sym;
}
// bind a key combination on a root window, compensating for Lock* states
static void grab_key ( Display *display, unsigned int modmask, KeySym key )
{
Screen *screen = DefaultScreenOfDisplay ( display );
Window root = RootWindow ( display, XScreenNumberOfScreen ( screen ) );
KeyCode keycode = XKeysymToKeycode ( display, key );
XUngrabKey ( display, keycode, AnyModifier, root );
if ( modmask != AnyModifier ) {
// bind to combinations of mod and lock masks, so caps and numlock don't confuse people
XGrabKey ( display, keycode, modmask, root, True, GrabModeAsync, GrabModeAsync );
XGrabKey ( display, keycode, modmask | LockMask, root, True, GrabModeAsync, GrabModeAsync );
if ( NumlockMask ) {
XGrabKey ( display, keycode, modmask | NumlockMask, root, True, GrabModeAsync, GrabModeAsync );
XGrabKey ( display, keycode, modmask | NumlockMask | LockMask, root, True, GrabModeAsync, GrabModeAsync );
}
}
else{
// nice simple single key bind
XGrabKey ( display, keycode, AnyModifier, root, True, GrabModeAsync, GrabModeAsync );
}
}
#ifdef HAVE_I3_IPC_H
static inline void display_get_i3_path ( Display *display )
{
Screen *screen = DefaultScreenOfDisplay ( display );
Window root = RootWindow ( display, XScreenNumberOfScreen ( screen ) );
i3_socket_path = window_get_text_prop ( root, netatoms[I3_SOCKET_PATH] );
config_i3_mode = ( i3_socket_path != NULL ) ? TRUE : FALSE;
}
#endif //HAVE_I3_IPC_H
/**
* Help function. This calls man.
*/
static void help ()
{
int code = execlp ( "man", "man", MANPAGE_PATH, NULL );
if ( code == -1 ) {
fprintf ( stderr, "Failed to execute man: %s\n", strerror ( errno ) );
}
}
static void parse_cmd_options ( int argc, char ** argv )
{
// catch help request
if ( find_arg ( argc, argv, "-h" ) >= 0 ||
find_arg ( argc, argv, "-help" ) >= 0 ) {
help ();
exit ( EXIT_SUCCESS );
}
if ( find_arg ( argc, argv, "-v" ) >= 0 ||
find_arg ( argc, argv, "-version" ) >= 0 ) {
fprintf ( stdout, "Version: "VERSION "\n" );
exit ( EXIT_SUCCESS );
}
find_arg_str ( argc, argv, "-switchers", &( config.switchers ) );
// Parse commandline arguments about the looks.
find_arg_uint ( argc, argv, "-opacity", &( config.window_opacity ) );
find_arg_int ( argc, argv, "-width", &( config.menu_width ) );
find_arg_uint ( argc, argv, "-lines", &( config.menu_lines ) );
find_arg_uint ( argc, argv, "-columns", &( config.menu_columns ) );
find_arg_str ( argc, argv, "-font", &( config.menu_font ) );
find_arg_str ( argc, argv, "-fg", &( config.menu_fg ) );
find_arg_str ( argc, argv, "-bg", &( config.menu_bg ) );
find_arg_str ( argc, argv, "-hlfg", &( config.menu_hlfg ) );
find_arg_str ( argc, argv, "-hlbg", &( config.menu_hlbg ) );
find_arg_str ( argc, argv, "-bc", &( config.menu_bc ) );
find_arg_uint ( argc, argv, "-bw", &( config.menu_bw ) );
// Parse commandline arguments about size and position
find_arg_uint ( argc, argv, "-location", &( config.location ) );
find_arg_uint ( argc, argv, "-padding", &( config.padding ) );
find_arg_int ( argc, argv, "-xoffset", &( config.x_offset ) );
find_arg_int ( argc, argv, "-yoffset", &( config.y_offset ) );
if ( find_arg ( argc, argv, "-fixed-num-lines" ) >= 0 ) {
config.fixed_num_lines = 1;
}
if ( find_arg ( argc, argv, "-disable-history" ) >= 0 ) {
config.disable_history = TRUE;
}
if ( find_arg ( argc, argv, "-levenshtein-sort" ) >= 0 ) {
config.levenshtein_sort = TRUE;
}
// Parse commandline arguments about behavior
find_arg_str ( argc, argv, "-terminal", &( config.terminal_emulator ) );
if ( find_arg ( argc, argv, "-hmode" ) >= 0 ) {
config.hmode = TRUE;
}
if ( find_arg ( argc, argv, "-ssh-set-title" ) >= 0 ) {
char *value;
find_arg_str ( argc, argv, "-ssh-set-title", &value );
if ( strcasecmp ( value, "true" ) == 0 ) {
config.ssh_set_title = TRUE;
}
else{
config.ssh_set_title = FALSE;
}
}
// Keybindings
find_arg_str ( argc, argv, "-key", &( config.window_key ) );
find_arg_str ( argc, argv, "-rkey", &( config.run_key ) );
find_arg_str ( argc, argv, "-skey", &( config.ssh_key ) );
// Dump.
if ( find_arg ( argc, argv, "-dump-xresources" ) >= 0 ) {
xresource_dump ();
exit ( EXIT_SUCCESS );
}
}
static void cleanup ()
{
// Cleanup
if ( display != NULL ) {
if ( main_window != None ) {
XFreeGC ( display, gc );
XDestroyWindow ( display, main_window );
XCloseDisplay ( display );
}
}
if ( cache_xattr != NULL ) {
winlist_free ( cache_xattr );
}
if ( cache_client != NULL ) {
winlist_free ( cache_client );
}
#ifdef HAVE_I3_IPC_H
if ( i3_socket_path != NULL ) {
g_free ( i3_socket_path );
}
#endif
// Cleaning up memory allocated by the Xresources file.
// TODO, not happy with this.
parse_xresource_free ();
for ( unsigned int i = 0; i < num_switchers; i++ ) {
// only used for script dialog.
if ( switchers[i].cb_data != NULL ) {
script_switcher_free_options ( switchers[i].cb_data );
}
}
g_free ( switchers );
}
/**
* Do some input validation, especially the first few could break things.
* It is good to catch them beforehand.
*
* This functions exits the program with 1 when it finds an invalid configuration.
*/
static void config_sanity_check ( void )
{
if ( config.menu_lines == 0 ) {
fprintf ( stderr, "config.menu_lines is invalid. You need at least one visible line.\n" );
exit ( 1 );
}
if ( config.menu_columns == 0 ) {
fprintf ( stderr, "config.menu_columns is invalid. You need at least one visible column.\n" );
exit ( 1 );
}
if ( config.menu_width == 0 ) {
fprintf ( stderr, "config.menu_width is invalid. You cannot have a window with no width.\n" );
exit ( 1 );
}
if ( !( config.location >= WL_CENTER && config.location <= WL_WEST ) ) {
fprintf ( stderr, "config.location is invalid. ( %d >= %d >= %d) does not hold.\n",
WL_WEST, config.location, WL_CENTER );
exit ( 1 );
}
if ( !( config.hmode == TRUE || config.hmode == FALSE ) ) {
fprintf ( stderr, "config.hmode is invalid.\n" );
exit ( 1 );
}
}
static void setup_switchers ( void )
{
char *savept;
char *switcher_str = g_strdup ( config.switchers );
char *token;
for ( token = strtok_r ( switcher_str, ",", &savept );
token != NULL;
token = strtok_r ( NULL, ",", &savept ) ) {
if ( strcasecmp ( token, "window" ) == 0 ) {
switchers = (Switcher *) g_realloc ( switchers, sizeof ( Switcher ) * ( num_switchers + 1 ) );
g_strlcpy ( switchers[num_switchers].name, "window", 32 );
switchers[num_switchers].cb = run_switcher_window;
switchers[num_switchers].cb_data = NULL;
num_switchers++;
}
else if ( strcasecmp ( token, "ssh" ) == 0 ) {
switchers = (Switcher *) g_realloc ( switchers, sizeof ( Switcher ) * ( num_switchers + 1 ) );
g_strlcpy ( switchers[num_switchers].name, "ssh", 32 );
switchers[num_switchers].cb = ssh_switcher_dialog;
switchers[num_switchers].cb_data = NULL;
num_switchers++;
}
else if ( strcasecmp ( token, "run" ) == 0 ) {
switchers = (Switcher *) g_realloc ( switchers, sizeof ( Switcher ) * ( num_switchers + 1 ) );
g_strlcpy ( switchers[num_switchers].name, "run", 32 );
switchers[num_switchers].cb = run_switcher_dialog;
switchers[num_switchers].cb_data = NULL;
num_switchers++;
}
else {
ScriptOptions *sw = script_switcher_parse_setup ( token );
if ( sw != NULL ) {
switchers = (Switcher *) g_realloc ( switchers, sizeof ( Switcher ) * ( num_switchers + 1 ) );
g_strlcpy ( switchers[num_switchers].name, sw->name, 32 );
switchers[num_switchers].cb = script_switcher_dialog;
switchers[num_switchers].cb_data = sw;
num_switchers++;
}
else{
fprintf ( stderr, "Invalid script switcher: %s\n", token );
token = NULL;
}
}
}
g_free ( switcher_str );
}
int main ( int argc, char *argv[] )
{
// Get the path to the cache dir.
cache_dir = g_get_user_cache_dir ();
// Register cleanup function.
atexit ( cleanup );
// Get DISPLAY
char *display_str = getenv ( "DISPLAY" );
find_arg_str ( argc, argv, "-display", &display_str );
if ( !( display = XOpenDisplay ( display_str ) ) ) {
fprintf ( stderr, "cannot open display!\n" );
return EXIT_FAILURE;
}
// Load in config from X resources.
parse_xresource_options ( display );
// Parse command line for settings.
parse_cmd_options ( argc, argv );
// Sanity check
config_sanity_check ();
// setup_switchers
setup_switchers ();
// Set up X interaction.
signal ( SIGCHLD, catch_exit );
// Set error handle
XSync ( display, False );
xerror = XSetErrorHandler ( display_oops );
XSync ( display, False );
// determine numlock mask so we can bind on keys with and without it
XModifierKeymap *modmap = XGetModifierMapping ( display );
for ( int i = 0; i < 8; i++ ) {
for ( int j = 0; j < ( int ) modmap->max_keypermod; j++ ) {
if ( modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode ( display, XK_Num_Lock ) ) {
NumlockMask = ( 1 << i );
}
}
}
XFreeModifiermap ( modmap );
cache_client = winlist_new ();
cache_xattr = winlist_new ();
// X atom values
for ( int i = 0; i < NUM_NETATOMS; i++ ) {
netatoms[i] = XInternAtom ( display, netatom_names[i], False );
}
#ifdef HAVE_I3_IPC_H
// Check for i3
display_get_i3_path ( display );
#endif
char *msg = NULL;
if ( find_arg_str ( argc, argv, "-e", &(msg) ) ) {
textbox_setup (
config.menu_bg, config.menu_fg,
config.menu_hlbg,
config.menu_hlfg );
error_dialog(msg);
textbox_cleanup ();
exit (EXIT_SUCCESS);
}
// flags to run immediately and exit
char *sname = NULL;
if ( find_arg_str ( argc, argv, "-show", &sname ) == TRUE ) {
int index = switcher_get ( sname );
if ( index >= 0 ) {
run_switcher ( FALSE, index );
}
else {
fprintf ( stderr, "The %s switcher has not been enabled\n", sname );
}
}
// Old modi.
else if ( find_arg ( argc, argv, "-now" ) >= 0 ) {
int index = switcher_get ( "window" );
if ( index >= 0 ) {
run_switcher ( FALSE, index );
}
else {
fprintf ( stderr, "The window switcher has not been enabled\n" );
}
}
else if ( find_arg ( argc, argv, "-rnow" ) >= 0 ) {
int index = switcher_get ( "run" );
if ( index >= 0 ) {
run_switcher ( FALSE, index );
}
else {
fprintf ( stderr, "The run dialog has not been enabled\n" );
}
}
else if ( find_arg ( argc, argv, "-snow" ) >= 0 ) {
int index = switcher_get ( "ssh" );
if ( index >= 0 ) {
run_switcher ( FALSE, index );
}
else {
fprintf ( stderr, "The ssh dialog has not been enabled\n" );
}
}
else if ( find_arg ( argc, argv, "-dmenu" ) >= 0 ) {
find_arg_str ( argc, argv, "-p", &dmenu_prompt );
int retv = run_dmenu ();
// User cancelled the operation.
if ( retv == FALSE ) {
return EXIT_FAILURE;
}
}
else{
// Daemon mode, Listen to key presses..
if ( switcher_get ( "window" ) >= 0 ) {
parse_key ( config.window_key, &windows_modmask, &windows_keysym );
grab_key ( display, windows_modmask, windows_keysym );
}
if ( switcher_get ( "run" ) >= 0 ) {
parse_key ( config.run_key, &rundialog_modmask, &rundialog_keysym );
grab_key ( display, rundialog_modmask, rundialog_keysym );
}
if ( switcher_get ( "ssh" ) >= 0 ) {
parse_key ( config.ssh_key, &sshdialog_modmask, &sshdialog_keysym );
grab_key ( display, sshdialog_modmask, sshdialog_keysym );
}
// Main loop
for (;; ) {
XEvent ev;
// caches only live for a single event
winlist_empty ( cache_xattr );
winlist_empty ( cache_client );
// block and wait for something
XNextEvent ( display, &ev );
if ( ev.xany.window == None ) {
continue;
}
if ( ev.type == KeyPress ) {
handle_keypress ( &ev );
}
}
}
return EXIT_SUCCESS;
}
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