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409 lines
7.0 KiB
409 lines
7.0 KiB
/* See LICENSE file for copyright and license details. */
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#include "dwm.h"
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#include <regex.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <X11/Xatom.h>
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#include <X11/Xutil.h>
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/* static */
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typedef struct {
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const char *symbol;
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void (*arrange)(void);
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} Layout;
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typedef struct {
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const char *prop;
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const char *tags;
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Bool isfloating;
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} Rule;
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typedef struct {
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regex_t *propregex;
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regex_t *tagregex;
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} Regs;
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TAGS
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RULES
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static char prop[512];
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static unsigned int nrules = 0;
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static unsigned int nlayouts = 0;
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static unsigned int ltidx = 0; /* default */
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static Regs *regs = NULL;
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static unsigned int
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idxoftag(const char *tag) {
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unsigned int i;
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for(i = 0; i < ntags; i++)
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if(tags[i] == tag)
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return i;
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return 0;
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}
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static void
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floating(void) { /* default floating layout */
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Client *c;
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for(c = clients; c; c = c->next)
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if(isvisible(c))
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resize(c, c->x, c->y, c->w, c->h, True);
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}
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static void
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setdwmprops(void) {
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unsigned int i;
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for(i = 0; i < ntags && i < sizeof prop - 1; i++)
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prop[i] = seltags[i] ? '1' : '0';
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if(i < sizeof prop - 1)
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prop[i++] = (char)ltidx;
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prop[i] = '\0';
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XChangeProperty(dpy, root, dwmprops, XA_STRING, 8,
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PropModeReplace, (unsigned char *)prop, i);
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}
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LAYOUTS
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/* extern */
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unsigned int blw = 0;
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void
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applyrules(Client *c) {
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unsigned int i, j;
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regmatch_t tmp;
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Bool matched = False;
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XClassHint ch = { 0 };
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/* rule matching */
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XGetClassHint(dpy, c->win, &ch);
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snprintf(prop, sizeof prop, "%s:%s:%s",
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ch.res_class ? ch.res_class : "",
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ch.res_name ? ch.res_name : "", c->name);
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for(i = 0; i < nrules; i++)
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if(regs[i].propregex && !regexec(regs[i].propregex, prop, 1, &tmp, 0)) {
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c->isfloating = rules[i].isfloating;
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for(j = 0; regs[i].tagregex && j < ntags; j++) {
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if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) {
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matched = True;
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c->tags[j] = True;
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}
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}
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}
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if(ch.res_class)
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XFree(ch.res_class);
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if(ch.res_name)
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XFree(ch.res_name);
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if(!matched)
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for(i = 0; i < ntags; i++)
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c->tags[i] = seltags[i];
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}
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void
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arrange(void) {
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Client *c;
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for(c = clients; c; c = c->next)
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if(isvisible(c))
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unban(c);
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else
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ban(c);
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layouts[ltidx].arrange();
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focus(NULL);
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restack();
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}
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void
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compileregs(void) {
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unsigned int i;
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regex_t *reg;
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if(regs)
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return;
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nrules = sizeof rules / sizeof rules[0];
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regs = emallocz(nrules * sizeof(Regs));
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for(i = 0; i < nrules; i++) {
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if(rules[i].prop) {
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reg = emallocz(sizeof(regex_t));
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if(regcomp(reg, rules[i].prop, REG_EXTENDED))
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free(reg);
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else
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regs[i].propregex = reg;
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}
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if(rules[i].tags) {
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reg = emallocz(sizeof(regex_t));
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if(regcomp(reg, rules[i].tags, REG_EXTENDED))
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free(reg);
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else
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regs[i].tagregex = reg;
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}
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}
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}
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void
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focusnext(const char *arg) {
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Client *c;
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if(!sel)
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return;
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for(c = sel->next; c && !isvisible(c); c = c->next);
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if(!c)
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for(c = clients; c && !isvisible(c); c = c->next);
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if(c) {
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focus(c);
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restack();
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}
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}
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void
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focusprev(const char *arg) {
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Client *c;
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if(!sel)
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return;
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for(c = sel->prev; c && !isvisible(c); c = c->prev);
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if(!c) {
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for(c = clients; c && c->next; c = c->next);
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for(; c && !isvisible(c); c = c->prev);
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}
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if(c) {
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focus(c);
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restack();
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}
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}
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const char *
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getsymbol(void)
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{
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return layouts[ltidx].symbol;
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}
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void
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initlayouts(void) {
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unsigned int i, w;
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nlayouts = sizeof layouts / sizeof layouts[0];
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for(blw = i = 0; i < nlayouts; i++) {
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w = textw(layouts[i].symbol);
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if(w > blw)
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blw = w;
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}
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}
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Bool
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isfloating(void) {
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return layouts[ltidx].arrange == floating;
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}
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Bool
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isarrange(void (*func)())
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{
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return func == layouts[ltidx].arrange;
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}
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Bool
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isvisible(Client *c) {
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unsigned int i;
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for(i = 0; i < ntags; i++)
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if(c->tags[i] && seltags[i])
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return True;
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return False;
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}
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void
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getdwmprops(void) {
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unsigned int i;
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if(gettextprop(root, dwmprops, prop, sizeof prop)) {
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for(i = 0; i < ntags && i < sizeof prop - 1 && prop[i] != '\0'; i++)
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seltags[i] = prop[i] == '1';
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if(i < sizeof prop - 1 && prop[i] != '\0') {
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if(prop[i] < nlayouts)
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ltidx = prop[i];
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}
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}
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}
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Client *
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nexttiled(Client *c) {
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for(; c && (c->isfloating || !isvisible(c)); c = c->next);
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return c;
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}
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void
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restack(void) {
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Client *c;
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XEvent ev;
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XWindowChanges wc;
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drawstatus();
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if(!sel)
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return;
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if(sel->isfloating || isfloating())
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XRaiseWindow(dpy, sel->win);
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if(!isfloating()) {
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wc.stack_mode = Below;
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wc.sibling = barwin;
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if(!sel->isfloating) {
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XConfigureWindow(dpy, sel->win, CWSibling | CWStackMode, &wc);
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wc.sibling = sel->win;
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}
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for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
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if(c == sel)
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continue;
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XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc);
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wc.sibling = c->win;
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}
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}
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XSync(dpy, False);
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while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
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}
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void
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setlayout(const char *arg) {
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int i;
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if(!arg) {
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if(++ltidx == nlayouts)
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ltidx = 0;;
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}
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else {
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i = atoi(arg);
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if(i < 0 || i >= nlayouts)
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return;
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ltidx = i;
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}
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if(sel)
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arrange();
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else
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drawstatus();
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setdwmprops();
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}
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void
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tag(const char *arg) {
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unsigned int i;
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if(!sel)
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return;
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for(i = 0; i < ntags; i++)
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sel->tags[i] = arg == NULL;
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i = idxoftag(arg);
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if(i >= 0 && i < ntags)
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sel->tags[i] = True;
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setprops(sel);
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arrange();
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}
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void
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togglebar(const char *arg) {
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if(bpos == BarOff)
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bpos = (BARPOS == BarOff) ? BarTop : BARPOS;
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else
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bpos = BarOff;
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updatebarpos();
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arrange();
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}
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void
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togglefloating(const char *arg) {
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if(!sel || isfloating())
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return;
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sel->isfloating = !sel->isfloating;
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if(sel->isfloating) {
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resize(sel, sel->x, sel->y, sel->w, sel->h, True);
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setprops(sel);
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}
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arrange();
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}
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void
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togglemax(const char *arg) {
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XEvent ev;
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if(!sel || (!isfloating() && !sel->isfloating) || sel->isfixed)
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return;
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if((sel->ismax = !sel->ismax)) {
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sel->rx = sel->x;
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sel->ry = sel->y;
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sel->rw = sel->w;
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sel->rh = sel->h;
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resize(sel, wax, way, waw - 2 * sel->border, wah - 2 * sel->border, True);
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}
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else
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resize(sel, sel->rx, sel->ry, sel->rw, sel->rh, True);
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drawstatus();
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while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
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}
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void
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toggletag(const char *arg) {
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unsigned int i, j;
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if(!sel)
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return;
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i = idxoftag(arg);
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sel->tags[i] = !sel->tags[i];
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for(j = 0; j < ntags && !sel->tags[j]; j++);
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if(j == ntags)
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sel->tags[i] = True;
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setprops(sel);
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arrange();
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}
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void
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toggleview(const char *arg) {
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unsigned int i, j;
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i = idxoftag(arg);
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seltags[i] = !seltags[i];
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for(j = 0; j < ntags && !seltags[j]; j++);
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if(j == ntags)
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seltags[i] = True; /* cannot toggle last view */
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setdwmprops();
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arrange();
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}
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void
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updatebarpos(void) {
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XEvent ev;
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wax = sx;
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way = sy;
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wah = sh;
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waw = sw;
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switch(bpos) {
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default:
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wah -= bh;
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way += bh;
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XMoveWindow(dpy, barwin, sx, sy);
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break;
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case BarBot:
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wah -= bh;
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XMoveWindow(dpy, barwin, sx, sy + wah);
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break;
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case BarOff:
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XMoveWindow(dpy, barwin, sx, sy - bh);
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break;
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}
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XSync(dpy, False);
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while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
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}
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void
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view(const char *arg) {
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unsigned int i;
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for(i = 0; i < ntags; i++)
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seltags[i] = arg == NULL;
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i = idxoftag(arg);
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if(i >= 0 && i < ntags)
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seltags[i] = True;
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setdwmprops();
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arrange();
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}
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