applied Neale Pickett's xprop status reading patch, updated README and dwm.1 accordingly
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README
2
README
@ -40,7 +40,7 @@ like this in your .xinitrc:
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while true
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do
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echo `date` `uptime | sed 's/.*,//'`
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xsetroot -name "`date` `uptime | sed 's/.*,//'`"
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sleep 1
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done | dwm
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@ -12,7 +12,6 @@ static unsigned int borderpx = 1; /* border pixel of windows */
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static unsigned int snap = 32; /* snap pixel */
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static Bool showbar = True; /* False means no bar */
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static Bool topbar = True; /* False means bottom bar */
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static Bool readin = True; /* False means do not read stdin */
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static Bool usegrab = False; /* True means grabbing the X server
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during mouse-based resizals */
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14
dwm.1
14
dwm.1
@ -20,13 +20,13 @@ Windows are grouped by tags. Each window can be tagged with one or multiple
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tags. Selecting certain tags displays all windows with these tags.
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.P
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dwm contains a small status bar which displays all available tags, the layout,
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the title of the focused window, and the text read from standard input. A
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floating window is indicated with an empty square and a maximised
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floating window is indicated with a filled square before the windows
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title. The selected tags are indicated with a different color. The tags of
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the focused window are indicated with a filled square in the top left
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corner. The tags which are applied to one or more windows are indicated
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with an empty square in the top left corner.
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the title of the focused window, and the text read from the root window name
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property. A floating window is indicated with an empty square and a maximised
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floating window is indicated with a filled square before the windows title.
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The selected tags are indicated with a different color. The tags of the focused
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window are indicated with a filled square in the top left corner. The tags
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which are applied to one or more windows are indicated with an empty square in
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the top left corner.
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.P
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dwm draws a small border around windows to indicate the focus state.
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.SH OPTIONS
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87
dwm.c
87
dwm.c
@ -6,12 +6,9 @@
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* events about window (dis-)appearance. Only one X connection at a time is
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* allowed to select for this event mask.
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*
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* Calls to fetch an X event from the event queue are blocking. Due reading
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* status text from standard input, a select()-driven main loop has been
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* implemented which selects for reads on the X connection and STDIN_FILENO to
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* handle all data smoothly. The event handlers of dwm are organized in an
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* array which is accessed whenever a new event has been fetched. This allows
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* event dispatching in O(1) time.
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* The event handlers of dwm are organized in an array which is accessed
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* whenever a new event has been fetched. This allows event dispatching
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* in O(1) time.
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*
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* Each child of the root window is called a client, except windows which have
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* set the override_redirect flag. Clients are organized in a global
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@ -30,7 +27,6 @@
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/select.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <X11/cursorfont.h>
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@ -196,6 +192,7 @@ static void updatebar(void);
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static void updategeom(void);
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static void updatenumlockmask(void);
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static void updatesizehints(Client *c);
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static void updatestatus(void);
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static void updatetitle(Client *c);
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static void updatewmhints(Client *c);
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static void view(const Arg *arg);
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@ -998,9 +995,11 @@ propertynotify(XEvent *e) {
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Window trans;
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XPropertyEvent *ev = &e->xproperty;
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if(ev->state == PropertyDelete)
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if((ev->window == root) && (ev->atom = XA_WM_NAME))
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updatestatus();
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else if(ev->state == PropertyDelete)
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return; /* ignore */
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if((c = getclient(ev->window))) {
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else if((c = getclient(ev->window))) {
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switch (ev->atom) {
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default: break;
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case XA_WM_TRANSIENT_FOR:
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@ -1026,7 +1025,7 @@ propertynotify(XEvent *e) {
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void
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quit(const Arg *arg) {
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readin = running = False;
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running = False;
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}
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void
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@ -1180,60 +1179,13 @@ restack(void) {
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void
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run(void) {
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char *p;
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char sbuf[sizeof stext];
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fd_set rd;
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int r, xfd;
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unsigned int len, offset;
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XEvent ev;
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/* main event loop, also reads status text from stdin */
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/* main event loop */
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XSync(dpy, False);
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xfd = ConnectionNumber(dpy);
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offset = 0;
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len = sizeof stext - 1;
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sbuf[len] = stext[len] = '\0'; /* 0-terminator is never touched */
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while(running) {
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FD_ZERO(&rd);
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if(readin)
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FD_SET(STDIN_FILENO, &rd);
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FD_SET(xfd, &rd);
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if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) {
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if(errno == EINTR)
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continue;
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die("select failed\n");
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}
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if(FD_ISSET(STDIN_FILENO, &rd)) {
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switch((r = read(STDIN_FILENO, sbuf + offset, len - offset))) {
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case -1:
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strncpy(stext, strerror(errno), len);
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readin = False;
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break;
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case 0:
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strncpy(stext, "EOF", 4);
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readin = False;
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break;
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default:
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for(p = sbuf + offset; r > 0; p++, r--, offset++)
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if(*p == '\n' || *p == '\0') {
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*p = '\0';
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strncpy(stext, sbuf, len);
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p += r - 1; /* p is sbuf + offset + r - 1 */
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for(r = 0; *(p - r) && *(p - r) != '\n'; r++);
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offset = r;
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if(r)
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memmove(sbuf, p - r + 1, r);
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break;
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}
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break;
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}
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drawbar();
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}
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while(XPending(dpy)) {
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XNextEvent(dpy, &ev);
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if(handler[ev.type])
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(handler[ev.type])(&ev); /* call handler */
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}
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while(running && !XNextEvent(dpy, &ev)) {
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if(handler[ev.type])
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(handler[ev.type])(&ev); /* call handler */
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}
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}
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@ -1356,8 +1308,7 @@ setup(void) {
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CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
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XDefineCursor(dpy, barwin, cursor[CurNormal]);
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XMapRaised(dpy, barwin);
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strcpy(stext, "dwm-"VERSION);
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drawbar();
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updatestatus();
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/* EWMH support per view */
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XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
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@ -1365,7 +1316,8 @@ setup(void) {
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/* select for events */
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wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask|ButtonPressMask
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|EnterWindowMask|LeaveWindowMask|StructureNotifyMask;
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|EnterWindowMask|LeaveWindowMask|StructureNotifyMask
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|PropertyChangeMask;
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XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
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XSelectInput(dpy, root, wa.event_mask);
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@ -1646,6 +1598,13 @@ updatetitle(Client *c) {
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gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
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}
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void
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updatestatus() {
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if(!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
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strcpy(stext, "dwm-"VERSION);
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drawbar();
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}
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void
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updatewmhints(Client *c) {
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XWMHints *wmh;
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