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awesome/client.c

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/*
* client.c - client management
*
* Copyright © 2007-2008 Julien Danjou <julien@danjou.info>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include <stdio.h>
#include <X11/Xatom.h>
#include <X11/extensions/shape.h>
#include <X11/extensions/Xinerama.h>
#include "client.h"
#include "awesome.h"
#include "tag.h"
#include "rules.h"
#include "util.h"
#include "xutil.h"
#include "statusbar.h"
#include "window.h"
#include "focus.h"
#include "ewmh.h"
#include "screen.h"
#include "layouts/floating.h"
extern AwesomeConf globalconf;
/** Load windows properties, restoring client's tag
* and floating state before awesome was restarted if any
* \todo this may bug if number of tags is != than before
* \param c Client ref
* \param screen Screen ID
*/
static Bool
client_loadprops(Client * c, int screen)
{
int i, ntags = 0;
Tag *tag;
char *prop;
Bool result = False;
for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
ntags++;
prop = p_new(char, ntags + 2);
if(xgettextprop(globalconf.display, c->win, AWESOMEPROPS_ATOM(globalconf.display), prop, ntags + 2))
{
for(i = 0, tag = globalconf.screens[screen].tags; tag && i < ntags && prop[i]; i++, tag = tag->next)
if(prop[i] == '1')
{
tag_client(c, tag);
result = True;
}
else
untag_client(c, tag);
if(i <= ntags && prop[i])
c->isfloating = prop[i] == '1';
}
p_delete(&prop);
return result;
}
/** Check if client supports protocol WM_DELETE_WINDOW
* \param disp the display
* \param win the Window
* \return True if client has WM_DELETE_WINDOW
*/
static Bool
isprotodel(Display *disp, Window win)
{
int i, n;
Atom *protocols;
Bool ret = False;
if(XGetWMProtocols(disp, win, &protocols, &n))
{
for(i = 0; !ret && i < n; i++)
if(protocols[i] == XInternAtom(disp, "WM_DELETE_WINDOW", False))
ret = True;
XFree(protocols);
}
return ret;
}
/** Swap two client in the linked list clients
* \param head pointer ito the client list head
* \param c1 first client
* \param c2 second client
*/
static void
client_swap(Client **head, Client *c1, Client *c2)
{
Client *tmp;
tmp = c1->next;
c1->next = c2->next;
c2->next = (tmp == c2 ? c1 : tmp);
tmp = c2->prev;
c2->prev = c1->prev;
c1->prev = (tmp == c1 ? c2 : tmp );
if(c1->next)
c1->next->prev = c1;
if(c1->prev)
c1->prev->next = c1;
if(c2->next)
c2->next->prev = c2;
if(c2->prev)
c2->prev->next = c2;
if(*head == c1)
*head = c2;
}
/** Get a Client by its window
* \param list Client list to look info
* \param w Client window to find
* \return client
*/
Client *
get_client_bywin(Client *list, Window w)
{
Client *c;
for(c = list; c && c->win != w; c = c->next);
return c;
}
/** Get a client by its name
* \param list Client list
* \param name name to search
* \return first matching client
*/
Client *
get_client_byname(Client *list, char *name)
{
Client *c;
for(c = list; c; c = c->next)
if(strstr(c->name, name))
return c;
return NULL;
}
/** Update client name attribute with its title
* \param c the client
*/
void
client_updatetitle(Client *c)
{
if(!xgettextprop(globalconf.display, c->win, XInternAtom(globalconf.display, "_NET_WM_NAME", False), c->name, sizeof(c->name)))
xgettextprop(globalconf.display, c->win, XInternAtom(globalconf.display, "WM_NAME", False), c->name, sizeof(c->name));
}
/** Ban client and unmap it
* \param c the client
*/
void
client_ban(Client * c)
{
XUnmapWindow(globalconf.display, c->win);
window_setstate(c->win, IconicState);
}
static void
client_attach_at_end(Client *c)
{
Client *iter;
for(iter = globalconf.clients; iter && iter->next; iter = iter->next);
/* stack is empty */
if(!iter)
globalconf.clients = c;
else
{
c->prev = iter;
iter->next = c;
}
}
/** Attach client to the beginning of the clients stack
* \param c the client
*/
void
client_attach(Client *c)
{
if(globalconf.clients)
(globalconf.clients)->prev = c;
c->next = globalconf.clients;
globalconf.clients = c;
}
/** Detach client from clients list
* \param c client to detach
*/
void
client_detach(Client *c)
{
if(c->prev)
c->prev->next = c->next;
if(c->next)
c->next->prev = c->prev;
if(c == globalconf.clients)
globalconf.clients = c->next;
c->next = c->prev = NULL;
}
/** Give focus to client, or to first client if c is NULL
* \param c client
* \param selscreen True if current screen is selected
* \param screen Screen ID
*/
void
focus(Client *c, Bool selscreen, int screen)
{
int phys_screen = get_phys_screen(screen);
/* unfocus current selected client */
if(globalconf.focus->client)
{
window_grabbuttons(get_phys_screen(globalconf.focus->client->screen),
globalconf.focus->client->win, False, True);
XSetWindowBorder(globalconf.display, globalconf.focus->client->win,
globalconf.screens[screen].colors_normal[ColBorder].pixel);
window_settrans(globalconf.focus->client->win,
globalconf.screens[screen].opacity_unfocused);
}
/* if c is NULL or invisible, take next client in the focus history */
if((!c && selscreen) || (c && !client_isvisible(c, screen)))
{
c = focus_get_current_client(screen);
/* if c is still NULL take next client in the stack */
if(!c)
for(c = globalconf.clients; c && (c->skip || !client_isvisible(c, screen)); c = c->next);
}
if(c)
{
XSetWindowBorder(globalconf.display, c->win, globalconf.screens[screen].colors_selected[ColBorder].pixel);
window_grabbuttons(phys_screen, c->win, True, True);
}
if(!selscreen)
return;
/* save sel in focus history */
focus_add_client(c);
statusbar_draw_all(screen);
if(globalconf.focus->client)
{
XSetInputFocus(globalconf.display,
globalconf.focus->client->win, RevertToPointerRoot, CurrentTime);
for(c = globalconf.clients; c; c = c->next)
if(c != globalconf.focus->client)
window_settrans(globalconf.focus->client->win,
globalconf.screens[screen].opacity_unfocused);
window_settrans(globalconf.focus->client->win, -1);
}
else
XSetInputFocus(globalconf.display,
RootWindow(globalconf.display, phys_screen),
RevertToPointerRoot, CurrentTime);
ewmh_update_net_active_window(phys_screen);
}
/** Manage a new client
* \param w The window
* \param wa Window attributes
* \param screen Screen ID
*/
void
client_manage(Window w, XWindowAttributes *wa, int screen)
{
Client *c, *t = NULL;
Window trans;
Status rettrans;
XWindowChanges wc;
Area area, darea;
Tag *tag;
Rule *rule;
int phys_screen = get_phys_screen(screen);
area = get_screen_area(screen, NULL, NULL);
c = p_new(Client, 1);
c->win = w;
c->x = c->rx = wa->x;
c->y = c->ry = wa->y;
c->w = c->rw = wa->width;
c->h = c->rh = wa->height;
c->oldborder = wa->border_width;
c->screen = get_screen_bycoord(c->x, c->y);
move_client_to_screen(c, screen, True);
/* update window title */
client_updatetitle(c);
if(c->w == area.width && c->h == area.height)
c->border = wa->border_width;
else
c->border = globalconf.screens[screen].borderpx;
ewmh_check_client_hints(c);
/* loadprops or apply rules if no props */
if(!client_loadprops(c, screen))
tag_client_with_rules(c);
/* if window request fullscreen mode */
if(c->w == area.width && c->h == area.height)
{
c->x = area.x;
c->y = area.y;
}
else
{
darea = get_display_area(phys_screen,
globalconf.screens[screen].statusbar,
&globalconf.screens[screen].padding);
if(c->x + c->w + 2 * c->border > darea.x + darea.width)
c->x = c->rx = darea.x + darea.width - c->w - 2 * c->border;
if(c->y + c->h + 2 * c->border > darea.y + darea.height)
c->y = c->ry = darea.y + darea.height - c->h - 2 * c->border;
if(c->x < darea.x)
c->x = c->rx = darea.x;
if(c->y < darea.y)
c->y = c->ry = darea.y;
}
/* set borders */
wc.border_width = c->border;
XConfigureWindow(globalconf.display, w, CWBorderWidth, &wc);
XSetWindowBorder(globalconf.display, w, globalconf.screens[screen].colors_normal[ColBorder].pixel);
/* propagates border_width, if size doesn't change */
window_configure(c->win, c->x, c->y, c->w, c->h, c->border);
/* update hints */
client_updatesizehints(c);
client_updatewmhints(c);
XSelectInput(globalconf.display, w, StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
/* handle xshape */
if(globalconf.have_shape)
{
XShapeSelectInput(globalconf.display, w, ShapeNotifyMask);
window_setshape(phys_screen, c->win);
}
/* grab buttons */
window_grabbuttons(phys_screen, c->win, False, True);
/* check for transient and set tags like its parent */
if((rettrans = XGetTransientForHint(globalconf.display, w, &trans) == Success)
&& (t = get_client_bywin(globalconf.clients, trans)))
for(tag = globalconf.screens[c->screen].tags; tag; tag = tag->next)
if(is_client_tagged(t, tag))
tag_client(c, tag);
/* should be floating if transsient or fixed */
if(!c->isfloating)
c->isfloating = (rettrans == Success) || c->isfixed;
/* save new props */
client_saveprops(c);
/* attach to the stack */
for(rule = globalconf.rules; rule; rule = rule->next)
if(rule->not_master && client_match_rule(c, rule))
{
client_attach_at_end(c);
break;
}
if(!rule)
{
if(globalconf.screens[c->screen].new_become_master)
client_attach(c);
else
client_attach_at_end(c);
}
/* some windows require this */
XMoveResizeWindow(globalconf.display, c->win, c->x, c->y, c->w, c->h);
focus(c, True, screen);
ewmh_update_net_client_list(phys_screen);
/* rearrange to display new window */
arrange(screen);
}
/** Resize client window
* \param c client to resize
* \param x x coord
* \param y y coord
* \param w width
* \param h height
* \param sizehints respect size hints
* \param volatile_coords register coords in rx/ry/rw/rh
*/
void
client_resize(Client *c, int x, int y, int w, int h,
Bool sizehints, Bool volatile_coords)
{
double dx, dy, max, min, ratio;
Area area;
Tag **curtags;
if(sizehints)
{
if(c->minay > 0 && c->maxay > 0 && (h - c->baseh) > 0 && (w - c->basew) > 0)
{
dx = (double) (w - c->basew);
dy = (double) (h - c->baseh);
min = (double) (c->minax) / (double) (c->minay);
max = (double) (c->maxax) / (double) (c->maxay);
ratio = dx / dy;
if(max > 0 && min > 0 && ratio > 0)
{
if(ratio < min)
{
dy = (dx * min + dy) / (min * min + 1);
dx = dy * min;
w = (int) dx + c->basew;
h = (int) dy + c->baseh;
}
else if(ratio > max)
{
dy = (dx * min + dy) / (max * max + 1);
dx = dy * min;
w = (int) dx + c->basew;
h = (int) dy + c->baseh;
}
}
}
if(c->minw && w < c->minw)
w = c->minw;
if(c->minh && h < c->minh)
h = c->minh;
if(c->maxw && w > c->maxw)
w = c->maxw;
if(c->maxh && h > c->maxh)
h = c->maxh;
if(c->incw)
w -= (w - c->basew) % c->incw;
if(c->inch)
h -= (h - c->baseh) % c->inch;
}
if(w <= 0 || h <= 0)
return;
/* offscreen appearance fixes */
area = get_display_area(get_phys_screen(c->screen),
NULL,
&globalconf.screens[c->screen].padding);
if(x > area.width)
x = area.width - w - 2 * c->border;
if(y > area.height)
y = area.height - h - 2 * c->border;
if(x + w + 2 * c->border < 0)
x = 0;
if(y + h + 2 * c->border < 0)
y = 0;
if(c->x != x || c->y != y || c->w != w || c->h != h)
{
c->x = x;
c->y = y;
c->w = w;
c->h = h;
curtags = get_current_tags(c->screen);
if(!volatile_coords && (c->isfloating
|| curtags[0]->layout->arrange == layout_floating))
{
c->rx = c->x;
c->ry = c->y;
c->rw = c->w;
c->rh = c->h;
}
p_delete(&curtags);
XMoveResizeWindow(globalconf.display, c->win, c->x, c->y, c->w, c->h);
window_configure(c->win, c->x, c->y, c->w, c->h, c->border);
if(XineramaIsActive(globalconf.display))
{
int new_screen = get_screen_bycoord(c->x, c->y);
if(c->screen != new_screen)
move_client_to_screen(c, new_screen, False);
}
}
}
/** Save client properties as an X property
* \param c client
*/
void
client_saveprops(Client *c)
{
int i = 0, ntags = 0;
char *prop;
Tag *tag;
for(tag = globalconf.screens[c->screen].tags; tag; tag = tag->next)
ntags++;
prop = p_new(char, ntags + 2);
for(tag = globalconf.screens[c->screen].tags; tag; tag = tag->next, i++)
prop[i] = is_client_tagged(c, tag) ? '1' : '0';
if(i <= ntags)
prop[i] = c->isfloating ? '1' : '0';
prop[++i] = '\0';
XChangeProperty(globalconf.display, c->win, AWESOMEPROPS_ATOM(globalconf.display), XA_STRING, 8,
PropModeReplace, (unsigned char *) prop, i);
p_delete(&prop);
}
void
client_unban(Client *c)
{
XMapWindow(globalconf.display, c->win);
window_setstate(c->win, NormalState);
}
void
client_unmanage(Client *c, long state)
{
XWindowChanges wc;
Tag *tag;
wc.border_width = c->oldborder;
/* The server grab construct avoids race conditions. */
XGrabServer(globalconf.display);
XConfigureWindow(globalconf.display, c->win, CWBorderWidth, &wc); /* restore border */
client_detach(c);
if(globalconf.focus->client == c)
focus(NULL, True, c->screen);
focus_delete_client(c);
for(tag = globalconf.screens[c->screen].tags; tag; tag = tag->next)
untag_client(c, tag);
XUngrabButton(globalconf.display, AnyButton, AnyModifier, c->win);
window_setstate(c->win, state);
XSync(globalconf.display, False);
XSetErrorHandler(xerror);
XUngrabServer(globalconf.display);
if(state != NormalState)
arrange(c->screen);
p_delete(&c);
}
void
client_updatewmhints(Client *c)
{
XWMHints *wmh;
if((wmh = XGetWMHints(globalconf.display, c->win)))
{
c->isurgent = (wmh->flags & XUrgencyHint);
if((wmh->flags & StateHint) && wmh->initial_state == WithdrawnState)
c->skip = True;
XFree(wmh);
}
}
void
client_updatesizehints(Client *c)
{
long msize;
XSizeHints size;
if(!XGetWMNormalHints(globalconf.display, c->win, &size, &msize) || !size.flags)
size.flags = PSize;
if(size.flags & PBaseSize)
{
c->basew = size.base_width;
c->baseh = size.base_height;
}
else if(size.flags & PMinSize)
{
c->basew = size.min_width;
c->baseh = size.min_height;
}
else
c->basew = c->baseh = 0;
if(size.flags & PResizeInc)
{
c->incw = size.width_inc;
c->inch = size.height_inc;
}
else
c->incw = c->inch = 0;
if(size.flags & PMaxSize)
{
c->maxw = size.max_width;
c->maxh = size.max_height;
}
else
c->maxw = c->maxh = 0;
if(size.flags & PMinSize)
{
c->minw = size.min_width;
c->minh = size.min_height;
}
else if(size.flags & PBaseSize)
{
c->minw = size.base_width;
c->minh = size.base_height;
}
else
c->minw = c->minh = 0;
if(size.flags & PAspect)
{
c->minax = size.min_aspect.x;
c->maxax = size.max_aspect.x;
c->minay = size.min_aspect.y;
c->maxay = size.max_aspect.y;
}
else
c->minax = c->maxax = c->minay = c->maxay = 0;
if(c->maxw && c->minw && c->maxh && c->minh
&& c->maxw == c->minw && c->maxh == c->minh)
c->isfixed = True;
}
/** Returns True if a client is tagged
* with one of the tags
* \return True or False
*/
Bool
client_isvisible(Client *c, int screen)
{
Tag *tag;
if(c->screen != screen)
return False;
for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
if(tag->selected && is_client_tagged(c, tag))
return True;
return False;
}
/** Set selected client transparency
* \param screen Screen ID
* \param arg unused arg
* \ingroup ui_callback
*/
void
uicb_client_settrans(int screen __attribute__ ((unused)), char *arg)
{
double delta = 100.0, current_opacity = 100.0;
unsigned char *data;
Atom actual;
int format;
unsigned long n, left;
unsigned int current_opacity_raw = 0;
int set_prop = 0;
Client *sel = globalconf.focus->client;
if(!sel)
return;
XGetWindowProperty(globalconf.display, sel->win,
XInternAtom(globalconf.display, "_NET_WM_WINDOW_OPACITY", False),
0L, 1L, False, XA_CARDINAL, &actual, &format, &n, &left,
(unsigned char **) &data);
if(data)
{
memcpy(&current_opacity_raw, data, sizeof(unsigned int));
XFree(data);
current_opacity = (current_opacity_raw * 100.0) / 0xffffffff;
}
else
set_prop = 1;
delta = compute_new_value_from_arg(arg, current_opacity);
if(delta <= 0.0)
delta = 0.0;
else if(delta > 100.0)
{
delta = 100.0;
set_prop = 1;
}
if(delta == 100.0 && !set_prop)
window_settrans(sel->win, -1);
else
window_settrans(sel->win, delta);
}
/** Swap current with next client
* \param screen Screen ID
* \param arg nothing
* \ingroup ui_callback
*/
void
uicb_client_swapnext(int screen, char *arg __attribute__ ((unused)))
{
Client *next, *sel = globalconf.focus->client;
if(!sel)
return;
for(next = sel->next; next && !client_isvisible(next, screen); next = next->next);
if(next)
{
client_swap(&globalconf.clients, sel, next);
arrange(screen);
/* restore focus */
focus(sel, True, screen);
}
}
/** Swap current with previous client
* \param screen Screen ID
* \param arg nothing
* \ingroup ui_callback
*/
void
uicb_client_swapprev(int screen, char *arg __attribute__ ((unused)))
{
Client *prev, *sel = globalconf.focus->client;
if(!sel)
return;
for(prev = sel->prev; prev && !client_isvisible(prev, screen); prev = prev->prev);
if(prev)
{
client_swap(&globalconf.clients, prev, sel);
arrange(screen);
/* restore focus */
focus(sel, True, screen);
}
}
/** Move and resize client
* \param screen Screen ID
* \param arg x y w h
* \ingroup ui_callback
*/
void
uicb_client_moveresize(int screen, char *arg)
{
int nx, ny, nw, nh, ox, oy, ow, oh;
char x[8], y[8], w[8], h[8];
int mx, my, dx, dy, nmx, nmy;
unsigned int dui;
Window dummy;
Client *sel = globalconf.focus->client;
Tag **curtags = get_current_tags(screen);
if(curtags[0]->layout->arrange != layout_floating)
if(!sel || !sel->isfloating || sel->isfixed || !arg)
{
p_delete(&curtags);
return;
}
p_delete(&curtags);
if(sscanf(arg, "%s %s %s %s", x, y, w, h) != 4)
return;
nx = (int) compute_new_value_from_arg(x, sel->x);
ny = (int) compute_new_value_from_arg(y, sel->y);
nw = (int) compute_new_value_from_arg(w, sel->w);
nh = (int) compute_new_value_from_arg(h, sel->h);
ox = sel->x;
oy = sel->y;
ow = sel->w;
oh = sel->h;
Bool xqp = XQueryPointer(globalconf.display,
RootWindow(globalconf.display,
get_phys_screen(screen)),
&dummy, &dummy, &mx, &my, &dx, &dy, &dui);
client_resize(sel, nx, ny, nw, nh, True, False);
if (xqp && ox <= mx && (ox + ow) >= mx && oy <= my && (oy + oh) >= my)
{
nmx = mx - ox + sel->w - ow - 1 < 0 ? 0 : mx - ox + sel->w - ow - 1;
nmy = my - oy + sel->h - oh - 1 < 0 ? 0 : my - oy + sel->h - oh - 1;
XWarpPointer(globalconf.display,
None, sel->win,
0, 0, 0, 0, nmx, nmy);
}
}
void
client_kill(Client *c)
{
XEvent ev;
if(isprotodel(globalconf.display, c->win))
{
ev.type = ClientMessage;
ev.xclient.window = c->win;
ev.xclient.message_type = XInternAtom(globalconf.display, "WM_PROTOCOLS", False);
ev.xclient.format = 32;
ev.xclient.data.l[0] = XInternAtom(globalconf.display, "WM_DELETE_WINDOW", False);
ev.xclient.data.l[1] = CurrentTime;
XSendEvent(globalconf.display, c->win, False, NoEventMask, &ev);
}
else
XKillClient(globalconf.display, c->win);
}
/** Kill selected client
* \param screen Screen ID
* \param arg unused
* \ingroup ui_callback
*/
void
uicb_client_kill(int screen __attribute__ ((unused)), char *arg __attribute__ ((unused)))
{
Client *sel = globalconf.focus->client;
if(sel)
client_kill(sel);
}
void
client_maximize(Client *c, int x, int y, int w, int h, Bool borders)
{
if((c->ismax = !c->ismax))
{
if(borders)
{
c->oldborder = c->border;
c->border = 0;
}
c->wasfloating = c->isfloating;
c->isfloating = True;
client_resize(c, x, y, w, h, False, True);
}
else if(c->wasfloating)
client_resize(c, c->rx, c->ry, c->rw, c->rh, True, False);
else
c->isfloating = False;
if(borders)
c->border = c->oldborder;
arrange(c->screen);
}
/** Toggle maximize for client
* \param screen Screen ID
* \param arg Unused
* \ingroup ui_callback
*/
void
uicb_client_togglemax(int screen, char *arg __attribute__ ((unused)))
{
Client *sel = globalconf.focus->client;
Area area = get_screen_area(screen,
globalconf.screens[screen].statusbar,
&globalconf.screens[screen].padding);
if(sel)
client_maximize(sel, area.x, area.y,
area.width - 2 * sel->border,
area.height - 2 * sel->border, False);
}
/** Toggle vertical maximize for client
* \param screen Screen ID
* \param arg Unused
* \ingroup ui_callback
*/
void
uicb_client_toggleverticalmax(int screen, char *arg __attribute__ ((unused)))
{
Client *sel = globalconf.focus->client;
Area area = get_screen_area(screen,
globalconf.screens[screen].statusbar,
&globalconf.screens[screen].padding);
if(sel)
client_maximize(sel, sel->x, area.y,
sel->w,
area.height - 2 * sel->border, False);
}
/** Toggle horizontal maximize for client
* \param screen Screen ID
* \param arg Unused
* \ingroup ui_callback
*/
void
uicb_client_togglehorizontalmax(int screen, char *arg __attribute__ ((unused)))
{
Client *sel = globalconf.focus->client;
Area area = get_screen_area(screen,
globalconf.screens[screen].statusbar,
&globalconf.screens[screen].padding);
if(sel)
client_maximize(sel, area.x, sel->y,
area.height - 2 * sel->border,
sel->h, False);
}
/** Zoom client
* \param screen Screen ID
* \param arg Unused
* \ingroup ui_callback
*/
void
uicb_client_zoom(int screen, char *arg __attribute__ ((unused)))
{
Client *sel = globalconf.focus->client;
if(globalconf.clients == sel)
for(sel = sel->next; sel && !client_isvisible(sel, screen); sel = sel->next);
if(!sel)
return;
client_detach(sel);
client_attach(sel);
focus(sel, True, screen);
arrange(screen);
}
// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80
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