* events about window (dis-)appearance. Only one X connection at a time is
* allowed to select for this event mask.
*
- * Calls to fetch an X event from the event queue are blocking. Due reading
- * status text from standard input, a select()-driven main loop has been
- * implemented which selects for reads on the X connection and STDIN_FILENO to
- * handle all data smoothly. The event handlers of dwm are organized in an
- * array which is accessed whenever a new event has been fetched. This allows
- * event dispatching in O(1) time.
+ * The event handlers of dwm are organized in an array which is accessed
+ * whenever a new event has been fetched. This allows event dispatching
+ * in O(1) time.
*
* Each child of the root window is called a client, except windows which have
* set the override_redirect flag. Clients are organized in a global
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
-#include <sys/select.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <X11/cursorfont.h>
static void buttonpress(XEvent *e);
static void checkotherwm(void);
static void cleanup(void);
-static void clearurgent(void);
+static void clearurgent(Client *c);
static void configure(Client *c);
static void configurenotify(XEvent *e);
static void configurerequest(XEvent *e);
static void updategeom(void);
static void updatenumlockmask(void);
static void updatesizehints(Client *c);
+static void updatestatus(void);
static void updatetitle(Client *c);
static void updatewmhints(Client *c);
static void view(const Arg *arg);
}
void
-clearurgent(void) {
+clearurgent(Client *c) {
XWMHints *wmh;
- Client *c;
-
- for(c = clients; c; c = c->next)
- if(ISVISIBLE(c) && c->isurgent) {
- c->isurgent = False;
- if (!(wmh = XGetWMHints(dpy, c->win)))
- continue;
- wmh->flags &= ~XUrgencyHint;
- XSetWMHints(dpy, c->win, wmh);
- XFree(wmh);
- }
+ c->isurgent = False;
+ if(!(wmh = XGetWMHints(dpy, c->win)))
+ return;
+ wmh->flags &= ~XUrgencyHint;
+ XSetWMHints(dpy, c->win, wmh);
+ XFree(wmh);
}
void
XSetWindowBorder(dpy, sel->win, dc.norm[ColBorder]);
}
if(c) {
+ if(c->isurgent)
+ clearurgent(c);
detachstack(c);
attachstack(c);
grabbuttons(c, True);
Window trans;
XPropertyEvent *ev = &e->xproperty;
- if(ev->state == PropertyDelete)
+ if((ev->window == root) && (ev->atom = XA_WM_NAME))
+ updatestatus();
+ else if(ev->state == PropertyDelete)
return; /* ignore */
- if((c = getclient(ev->window))) {
+ else if((c = getclient(ev->window))) {
switch (ev->atom) {
default: break;
case XA_WM_TRANSIENT_FOR:
void
quit(const Arg *arg) {
- readin = running = False;
+ running = False;
}
void
void
run(void) {
- char *p;
- char sbuf[sizeof stext];
- fd_set rd;
- int r, xfd;
- unsigned int len, offset;
XEvent ev;
- /* main event loop, also reads status text from stdin */
+ /* main event loop */
XSync(dpy, False);
- xfd = ConnectionNumber(dpy);
- offset = 0;
- len = sizeof stext - 1;
- sbuf[len] = stext[len] = '\0'; /* 0-terminator is never touched */
- while(running) {
- FD_ZERO(&rd);
- if(readin)
- FD_SET(STDIN_FILENO, &rd);
- FD_SET(xfd, &rd);
- if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) {
- if(errno == EINTR)
- continue;
- die("select failed\n");
- }
- if(FD_ISSET(STDIN_FILENO, &rd)) {
- switch((r = read(STDIN_FILENO, sbuf + offset, len - offset))) {
- case -1:
- strncpy(stext, strerror(errno), len);
- readin = False;
- break;
- case 0:
- strncpy(stext, "EOF", 4);
- readin = False;
- break;
- default:
- for(p = sbuf + offset; r > 0; p++, r--, offset++)
- if(*p == '\n' || *p == '\0') {
- *p = '\0';
- strncpy(stext, sbuf, len);
- p += r - 1; /* p is sbuf + offset + r - 1 */
- for(r = 0; *(p - r) && *(p - r) != '\n'; r++);
- offset = r;
- if(r)
- memmove(sbuf, p - r + 1, r);
- break;
- }
- break;
- }
- drawbar();
- }
- while(XPending(dpy)) {
- XNextEvent(dpy, &ev);
- if(handler[ev.type])
- (handler[ev.type])(&ev); /* call handler */
- }
+ while(running && !XNextEvent(dpy, &ev)) {
+ if(handler[ev.type])
+ (handler[ev.type])(&ev); /* call handler */
}
}
CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
XDefineCursor(dpy, barwin, cursor[CurNormal]);
XMapRaised(dpy, barwin);
- strcpy(stext, "dwm-"VERSION);
- drawbar();
+ updatestatus();
/* EWMH support per view */
XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
/* select for events */
wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask|ButtonPressMask
- |EnterWindowMask|LeaveWindowMask|StructureNotifyMask;
+ |EnterWindowMask|LeaveWindowMask|StructureNotifyMask
+ |PropertyChangeMask;
XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
XSelectInput(dpy, root, wa.event_mask);
if(mask) {
tagset[seltags] = mask;
- clearurgent();
arrange();
}
}
}
void
+updatestatus() {
+ if(!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
+ strcpy(stext, "dwm-"VERSION);
+ drawbar();
+}
+
+void
updatewmhints(Client *c) {
XWMHints *wmh;
if((wmh = XGetWMHints(dpy, c->win))) {
- if(ISVISIBLE(c) && wmh->flags & XUrgencyHint) {
+ if(c == sel && wmh->flags & XUrgencyHint) {
wmh->flags &= ~XUrgencyHint;
XSetWMHints(dpy, c->win, wmh);
}
seltags ^= 1; /* toggle sel tagset */
if(arg->ui & TAGMASK)
tagset[seltags] = arg->ui & TAGMASK;
- clearurgent();
arrange();
}
Got questions, comments, patches, etc.? Contact Jason Woofenden