diff options
Diffstat (limited to 'screen.c')
| -rw-r--r-- | screen.c | 383 |
1 files changed, 383 insertions, 0 deletions
diff --git a/screen.c b/screen.c new file mode 100644 index 0000000..03387eb --- /dev/null +++ b/screen.c @@ -0,0 +1,383 @@ +/* See LICENSE file for copyright and license details. */ +#include "dwm.h" +#include <regex.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <X11/Xatom.h> +#include <X11/Xutil.h> + +/* static */ + +typedef struct { + const char *symbol; + void (*arrange)(void); +} Layout; + +typedef struct { + const char *prop; + const char *tags; + Bool isfloating; +} Rule; + +typedef struct { + regex_t *propregex; + regex_t *tagregex; +} Regs; + +TAGS +RULES + +static char prop[512]; +static unsigned int nrules = 0; +static unsigned int nlayouts = 0; +static unsigned int ltidx = 0; /* default */ +static Regs *regs = NULL; + +static unsigned int +idxoftag(const char *tag) { + unsigned int i; + + for(i = 0; i < ntags; i++) + if(tags[i] == tag) + return i; + return 0; +} + +static void +floating(void) { /* default floating layout */ + Client *c; + + for(c = clients; c; c = c->next) + if(isvisible(c)) + resize(c, c->x, c->y, c->w, c->h, True); +} + +static void +setdwmprops(void) { + unsigned int i; + + for(i = 0; i < ntags && i < sizeof prop - 1; i++) + prop[i] = seltags[i] ? '1' : '0'; + if(i < sizeof prop - 1) + prop[i++] = (char)ltidx; + prop[i] = '\0'; + XChangeProperty(dpy, root, dwmprops, XA_STRING, 8, + PropModeReplace, (unsigned char *)prop, i); +} + +LAYOUTS + +/* extern */ + +unsigned int blw = 0; + +void +applyrules(Client *c) { + unsigned int i, j; + regmatch_t tmp; + Bool matched = False; + XClassHint ch = { 0 }; + + /* rule matching */ + XGetClassHint(dpy, c->win, &ch); + snprintf(prop, sizeof prop, "%s:%s:%s", + ch.res_class ? ch.res_class : "", + ch.res_name ? ch.res_name : "", c->name); + for(i = 0; i < nrules; i++) + if(regs[i].propregex && !regexec(regs[i].propregex, prop, 1, &tmp, 0)) { + c->isfloating = rules[i].isfloating; + for(j = 0; regs[i].tagregex && j < ntags; j++) { + if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) { + matched = True; + c->tags[j] = True; + } + } + } + if(ch.res_class) + XFree(ch.res_class); + if(ch.res_name) + XFree(ch.res_name); + if(!matched) + for(i = 0; i < ntags; i++) + c->tags[i] = seltags[i]; +} + +void +arrange(void) { + Client *c; + + for(c = clients; c; c = c->next) + if(isvisible(c)) + unban(c); + else + ban(c); + layouts[ltidx].arrange(); + focus(NULL); + restack(); +} + +void +compileregs(void) { + unsigned int i; + regex_t *reg; + + if(regs) + return; + nrules = sizeof rules / sizeof rules[0]; + regs = emallocz(nrules * sizeof(Regs)); + for(i = 0; i < nrules; i++) { + if(rules[i].prop) { + reg = emallocz(sizeof(regex_t)); + if(regcomp(reg, rules[i].prop, REG_EXTENDED)) + free(reg); + else + regs[i].propregex = reg; + } + if(rules[i].tags) { + reg = emallocz(sizeof(regex_t)); + if(regcomp(reg, rules[i].tags, REG_EXTENDED)) + free(reg); + else + regs[i].tagregex = reg; + } + } +} + +void +focusnext(const char *arg) { + Client *c; + + if(!sel) + return; + for(c = sel->next; c && !isvisible(c); c = c->next); + if(!c) + for(c = clients; c && !isvisible(c); c = c->next); + if(c) { + focus(c); + restack(); + } +} + +void +focusprev(const char *arg) { + Client *c; + + if(!sel) + return; + for(c = sel->prev; c && !isvisible(c); c = c->prev); + if(!c) { + for(c = clients; c && c->next; c = c->next); + for(; c && !isvisible(c); c = c->prev); + } + if(c) { + focus(c); + restack(); + } +} + +const char * +getsymbol(void) +{ + return layouts[ltidx].symbol; +} + +void +initlayouts(void) { + unsigned int i, w; + + nlayouts = sizeof layouts / sizeof layouts[0]; + for(blw = i = 0; i < nlayouts; i++) { + w = textw(layouts[i].symbol); + if(w > blw) + blw = w; + } +} + +Bool +isfloating(void) { + return layouts[ltidx].arrange == floating; +} + +Bool +isarrange(void (*func)()) +{ + return func == layouts[ltidx].arrange; +} + +Bool +isvisible(Client *c) { + unsigned int i; + + for(i = 0; i < ntags; i++) + if(c->tags[i] && seltags[i]) + return True; + return False; +} + +void +getdwmprops(void) { + unsigned int i; + + if(gettextprop(root, dwmprops, prop, sizeof prop)) { + for(i = 0; i < ntags && i < sizeof prop - 1 && prop[i] != '\0'; i++) + seltags[i] = prop[i] == '1'; + if(i < sizeof prop - 1 && prop[i] != '\0') { + if(prop[i] < nlayouts) + ltidx = prop[i]; + } + } +} + +Client * +nexttiled(Client *c) { + for(; c && (c->isfloating || !isvisible(c)); c = c->next); + return c; +} + +void +restack(void) { + Client *c; + XEvent ev; + XWindowChanges wc; + + drawstatus(); + if(!sel) + return; + if(sel->isfloating || isfloating()) + XRaiseWindow(dpy, sel->win); + if(!isfloating()) { + wc.stack_mode = Below; + wc.sibling = barwin; + if(!sel->isfloating) { + XConfigureWindow(dpy, sel->win, CWSibling | CWStackMode, &wc); + wc.sibling = sel->win; + } + for(c = nexttiled(clients); c; c = nexttiled(c->next)) { + if(c == sel) + continue; + XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc); + wc.sibling = c->win; + } + } + XSync(dpy, False); + while(XCheckMaskEvent(dpy, EnterWindowMask, &ev)); +} + +void +setlayout(const char *arg) { + int i; + + if(!arg) { + if(++ltidx == nlayouts) + ltidx = 0;; + } + else { + i = atoi(arg); + if(i < 0 || i >= nlayouts) + return; + ltidx = i; + } + if(sel) + arrange(); + else + drawstatus(); + setdwmprops(); +} + +void +tag(const char *arg) { + unsigned int i; + + if(!sel) + return; + for(i = 0; i < ntags; i++) + sel->tags[i] = arg == NULL; + i = idxoftag(arg); + if(i >= 0 && i < ntags) + sel->tags[i] = True; + setprops(sel); + arrange(); +} + +void +togglebar(const char *arg) { + if(bpos == BarOff) + bpos = (BARPOS == BarOff) ? BarTop : BARPOS; + else + bpos = BarOff; + updatebarpos(); + arrange(); +} + +void +togglefloating(const char *arg) { + if(!sel || isfloating()) + return; + sel->isfloating = !sel->isfloating; + if(sel->isfloating) { + resize(sel, sel->x, sel->y, sel->w, sel->h, True); + setprops(sel); + } + arrange(); +} + +void +togglemax(const char *arg) { + XEvent ev; + + if(!sel || (!isfloating() && !sel->isfloating) || sel->isfixed) + return; + if((sel->ismax = !sel->ismax)) { + sel->rx = sel->x; + sel->ry = sel->y; + sel->rw = sel->w; + sel->rh = sel->h; + resize(sel, wax, way, waw - 2 * sel->border, wah - 2 * sel->border, True); + } + else + resize(sel, sel->rx, sel->ry, sel->rw, sel->rh, True); + drawstatus(); + while(XCheckMaskEvent(dpy, EnterWindowMask, &ev)); +} + +void +toggletag(const char *arg) { + unsigned int i, j; + + if(!sel) + return; + i = idxoftag(arg); + sel->tags[i] = !sel->tags[i]; + for(j = 0; j < ntags && !sel->tags[j]; j++); + if(j == ntags) + sel->tags[i] = True; + setprops(sel); + arrange(); +} + +void +toggleview(const char *arg) { + unsigned int i, j; + + i = idxoftag(arg); + seltags[i] = !seltags[i]; + for(j = 0; j < ntags && !seltags[j]; j++); + if(j == ntags) + seltags[i] = True; /* cannot toggle last view */ + setdwmprops(); + arrange(); +} + +void +view(const char *arg) { + unsigned int i; + + for(i = 0; i < ntags; i++) + seltags[i] = arg == NULL; + i = idxoftag(arg); + if(i >= 0 && i < ntags) + seltags[i] = True; + setdwmprops(); + arrange(); +} |