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rofi/source/dialogs/window.c
QC 9ff5a615e9 Add combi viewer. 
Use by adding combi to the list of enabled modi.
2015-03-30 20:12:22 +02:00

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/**
* rofi
*
* MIT/X11 License
* Copyright 2013-2015 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 <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <strings.h>
#include <string.h>
#include <errno.h>
#include <X11/X.h>
#include <X11/Xatom.h>
#include <X11/Xutil.h>
#include "rofi.h"
#include "helper.h"
#include "x11-helper.h"
#include "i3-support.h"
#include "dialogs/window.h"
#define WINLIST 32
#define CLIENTTITLE 100
#define CLIENTCLASS 50
#define CLIENTNAME 50
#define CLIENTSTATE 10
#define CLIENTROLE 50
// a manageable 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;
// TODO
extern Display *display;
// window lists
typedef struct
{
Window *array;
void **data;
int len;
} winlist;
winlist *cache_client = NULL;
winlist *cache_xattr = 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 ( Window ) );
l->data = g_malloc_n ( WINLIST + 1, sizeof ( void* ) );
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, 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;
}
static void winlist_empty ( winlist *l )
{
while ( l->len > 0 ) {
g_free ( l->data[--( l->len )] );
}
}
/**
* @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, Window w )
{
// 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 )
{
cache_client = winlist_new ();
cache_xattr = winlist_new ();
}
/**
* Free the cache.
*/
static void x11_cache_free ( void )
{
winlist_free ( cache_xattr );
winlist_free ( cache_client );
}
/**
* @param d Display connection to X server
* @param w window
*
* Get window attributes.
* This functions uses caching.
*
* @returns a XWindowAttributes
*/
static XWindowAttributes* window_get_attributes ( Display *display, 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];
}
// _NET_WM_STATE_*
static int client_has_state ( client *c, Atom state )
{
for ( int i = 0; i < c->states; i++ ) {
if ( c->state[i] == state ) {
return 1;
}
}
return 0;
}
static client* window_client ( Display *display, 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 ( display, 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 ( display, win, netatoms[_NET_WM_STATE], c->state, CLIENTSTATE );
char *name;
if ( ( name = window_get_text_prop ( display, 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 ( display, 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 ( display, c->xattr.screen, c->xattr.x, c->xattr.y, &c->monitor );
winlist_append ( cache_client, c->window, c );
return c;
}
typedef struct _SwitcherModePrivateData
{
unsigned int id;
char **cmd_list;
unsigned int cmd_list_length;
winlist *ids;
int config_i3_mode;
int init;
} SwitcherModePrivateData;
static int window_match ( char **tokens, __attribute__( ( unused ) ) const char *input,
int case_sensitive, unsigned int index, Switcher *sw )
{
SwitcherModePrivateData *rmpd = (SwitcherModePrivateData *) sw->private_data;
int match = 1;
winlist *ids = ( winlist * ) rmpd->ids;
client *c = window_client ( display, ids->array[index] );
if ( tokens ) {
// Create collate keys.
char *title_key = token_collate_key ( c->title, case_sensitive );
char *class_key = token_collate_key ( c->class, case_sensitive );
char *role_key = token_collate_key ( c->role, case_sensitive );
char *name_key = token_collate_key ( c->name, case_sensitive );
for ( int j = 0; match && tokens[j]; j++ ) {
int test = 0;
if ( !test && title_key[0] != '\0' ) {
test = ( strstr ( title_key, tokens[j] ) != NULL );
}
if ( !test && class_key[0] != '\0' ) {
test = ( strstr ( class_key, tokens[j] ) != NULL );
}
if ( !test && role_key[0] != '\0' ) {
test = ( strstr ( role_key, tokens[j] ) != NULL );
}
if ( !test && name_key[0] != '\0' ) {
test = ( strstr ( name_key, tokens[j] ) != NULL );
}
if ( test == 0 ) {
match = 0;
}
}
g_free ( title_key );
g_free ( class_key );
g_free ( role_key );
g_free ( name_key );
}
return match;
}
static void window_mode_init ( Switcher *sw )
{
if ( sw->private_data == NULL ) {
SwitcherModePrivateData *pd = g_malloc0 ( sizeof ( *pd ) );
sw->private_data = (void *) pd;
pd->init = FALSE;
}
}
static char ** window_mode_get_data ( unsigned int *length, Switcher *sw )
{
SwitcherModePrivateData *pd = (SwitcherModePrivateData *) sw->private_data;
if ( !pd->init ) {
Screen *screen = DefaultScreenOfDisplay ( display );
Window root = RootWindow ( display, XScreenNumberOfScreen ( screen ) );
// find window list
Atom type;
int nwins;
Window wins[100];
int count = 0;
Window curr_win_id = 0;
// Create cache
x11_cache_create ();
// Check for i3
pd->config_i3_mode = i3_support_initialize ( display );
// Get the active window so we can highlight this.
if ( !( window_get_prop ( display, 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 ( display, 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...
pd->ids = winlist_new ();
// calc widths of fields
for ( i = nwins - 1; i > -1; i-- ) {
client *c;
if ( ( c = window_client ( display, 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 ) );
// In i3 mode, skip the i3bar completely.
if ( pd->config_i3_mode && strstr ( c->class, "i3bar" ) != NULL ) {
continue;
}
if ( c->window == curr_win_id ) {
c->active = TRUE;
}
winlist_append ( pd->ids, c->window, NULL );
}
}
// Create pattern for printing the line.
if ( !window_get_cardinal_prop ( display, root, netatoms[_NET_NUMBER_OF_DESKTOPS], &desktops, 1 ) ) {
desktops = 1;
}
if ( pd->config_i3_mode ) {
sprintf ( pattern, "%%-%ds %%s", MAX ( 5, classfield ) );
}
else{
sprintf ( pattern, "%%-%ds %%-%ds %%s", desktops < 10 ? 1 : 2, MAX ( 5, classfield ) );
}
pd->cmd_list = g_malloc0_n ( ( pd->ids->len + 1 ), sizeof ( char* ) );
// build the actual list
for ( i = 0; i < ( pd->ids->len ); i++ ) {
Window w = pd->ids->array[i];
client *c;
if ( ( c = window_client ( display, 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 );
if ( !pd->config_i3_mode ) {
// 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 ( display, 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 );
}
else{
sprintf ( line, pattern, c->class, c->title );
}
pd->cmd_list[pd->cmd_list_length++] = line;
}
}
}
pd->init = TRUE;
}
*length = pd->cmd_list_length;
return pd->cmd_list;
}
static SwitcherMode window_mode_result ( int mretv, G_GNUC_UNUSED char **input, unsigned int selected_line, Switcher *sw )
{
SwitcherModePrivateData *rmpd = (SwitcherModePrivateData *) sw->private_data;
SwitcherMode retv = MODE_EXIT;
if ( mretv & MENU_NEXT ) {
retv = NEXT_DIALOG;
}
else if ( mretv & MENU_PREVIOUS ) {
retv = PREVIOUS_DIALOG;
}
else if ( mretv == MENU_QUICK_SWITCH ) {
retv = selected_line;
}
else if ( ( mretv & ( MENU_OK | MENU_CUSTOM_INPUT ) ) && rmpd->cmd_list[selected_line] ) {
if ( rmpd->config_i3_mode ) {
// Hack for i3.
i3_support_focus_window ( rmpd->ids->array[selected_line] );
}
else{
Screen *screen = DefaultScreenOfDisplay ( display );
Window root = RootWindow ( display, XScreenNumberOfScreen ( screen ) );
// Change to the desktop of the selected window/client.
// TODO: get rid of strtol
window_send_message ( display, root, root, netatoms[_NET_CURRENT_DESKTOP],
strtol ( rmpd->cmd_list[selected_line], NULL, 10 ) - 1,
SubstructureNotifyMask | SubstructureRedirectMask, 0 );
XSync ( display, False );
window_send_message ( display, root, rmpd->ids->array[selected_line],
netatoms[_NET_ACTIVE_WINDOW], 2, // 2 = pager
SubstructureNotifyMask | SubstructureRedirectMask, 0 );
}
}
return retv;
}
static void window_mode_destroy ( Switcher *sw )
{
SwitcherModePrivateData *rmpd = (SwitcherModePrivateData *) sw->private_data;
if ( rmpd != NULL ) {
g_strfreev ( rmpd->cmd_list );
winlist_free ( rmpd->ids );
i3_support_free_internals ();
x11_cache_free ();
g_free ( rmpd );
sw->private_data = NULL;
}
}
Switcher window_mode =
{
.name = "window",
.tb = NULL,
.keycfg = NULL,
.keystr = NULL,
.modmask = AnyModifier,
.init = window_mode_init,
.get_data = window_mode_get_data,
.result = window_mode_result,
.destroy = window_mode_destroy,
.token_match = window_match,
.private_data = NULL,
.free = NULL
};
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