about summary refs log tree commit diff stats
Commit message (Collapse)AuthorAgeFilesLines
...
* add close command at global levelAditya Srivastava2019-08-136-100/+72
|
* Add optional body argument to compose commandDaniel Bridges2019-08-132-4/+15
|
* Prevent drawing terminal with nil cmdDrew DeVault2019-08-121-1/+1
|
* Add delete forward <C-k> and backward <C-u>Christopher Vittal2019-08-121-0/+29
| | | | | | | | | | Choose the readline defaults for the behavior of these two functions/keybindings. Depending on the program, either of these can delete the whole line. Note that by default in [compose], <C-k> is bound to :prev-field<Enter>. Leave it up to the user whether or not they want to rebind the key in [compose].
* Joining the args in cf for folders with spacesBen Cohen2019-08-121-1/+5
|
* Pass os stdin to credential commandJonas Mueller2019-08-121-0/+1
| | | | | This is neccessary for `gpg-agent` to display a prompt and get the key to unlock a given password. See https://todo.sr.ht/~sircmpwn/aerc2/250.
* Ignore scroll command when msgstore is nilJelle Besseling2019-08-122-2/+5
| | | | | | | | | Fixes ~sircmpwn/aerc2#205. Many functions do a nil check on the store, so this changes Store() so it returns nil when msglist is nil. It also places the Scroll() behind the nil check in the next-message command. https://todo.sr.ht/~sircmpwn/aerc2/205
* Let user edit arbitrary headers in composerDaniel Bridges2019-08-122-5/+37
|
* maildir: Preserve flags when copying messagesBen Burwell2019-08-081-20/+2
|
* Close backends prior to shutdownReto Brunner2019-08-082-0/+20
| | | | | | | We need some way to signal the backends that we are about to shutdown, allowing them to clean up (for example in notmuch committing the db changes). This commit implements a hook which gets called upon shutdown, providing backends implement the io.Closer interface.
* Fix `unread` commandArt Wild2019-08-081-0/+2
| | | | | | | This fixes ~sircmpwn/aerc2#195. While `read -t` works fine. The `unread` command is not wired. This patch fixes it. https://todo.sr.ht/~sircmpwn/aerc2/195
* Add notmuch docsReto Brunner2019-08-085-1/+73
|
* Add notmuch backendReto Brunner2019-08-083-0/+521
| | | | | | | | | | | | This commit introduces the notmuch backend. The backend is conditionally compiled in if the "notmuch" tag is provided. Most of the message types are implemented, with the notable exceptions of DeleteMessages as well as any copy / move / append type. Reason being, that those aren't normally applicable in a notmuch based workflow. Changes v2 --> v3, based on review comments * Use account config for configuration
* add github.com/zenhack/go.notmuchReto Brunner2019-08-082-2/+3
|
* Extract message parsing to common worker moduleReto Brunner2019-08-082-220/+256
| | | | | | | Things like FetchEntityPartReader etc can be reused by most workers working with raw email files from disk (or any reader for that matter). This patch extract that common functionality in a separate package.
* Don't print imap errors to uiJelle Besseling2019-08-081-0/+1
| | | | | | | | This fixes ~sircmpwn/aerc2#245. This sets up the imap client to send error messages to the logger of the worker. Errors now end up in the bottom status line. https://todo.sr.ht/~sircmpwn/aerc2/245
* Implement next-message in msgview using accountJelle Besseling2019-08-072-28/+37
| | | | | This makes sure that the next-message command accepts the same arguments in the account view and the msgview
* Implement next-folder using NextPrev with amountJelle Besseling2019-08-073-12/+10
| | | | | | This fixes ~sircmpwn/aerc2#182 https://todo.sr.ht/~sircmpwn/aerc2/182
* Update tcellDrew DeVault2019-08-072-1/+3
|
* Allow cc/bcc command to receive no argumentsDaniel Bridges2019-08-073-5/+21
|
* cc/bcc: Append to existing headers if called twiceKevin Kuehler2019-08-072-3/+8
| | | | Signed-off-by: Kevin Kuehler <keur@ocf.berkeley.edu>
* Remove aerc specific code from the uiNicolai Dagestad2019-08-032-8/+10
| | | | | Separatiing the ui code from aerc makes it usable as a library in other projects.
* Fix directory completion case sensitivityBen Burwell2019-08-031-11/+19
| | | | | | Before, lower_only was not being correctly set and was only considering whether the string ended with a lowercase sequence. Refactored this with some more explicit functions as the logic is a little confusing.
* Fixing #231 (alternative preferred mimetypes)Ben Cohen2019-08-031-10/+10
|
* Add cc and bcc commandsDaniel Bridges2019-08-033-14/+87
|
* select next message when deleting from message viewerAditya Srivastava2019-08-021-3/+10
|
* Fix sending attachments with less than 512 bytesBen Burwell2019-08-021-1/+1
|
* Include body MIME terminator in multipart messagesBen Burwell2019-08-021-23/+30
| | | | | | | | Before, the text/plain part of the multipart MIME message was not being correctly terminated with its boundary. The multipart writer writes the terminator when its Close is called, but since the call to Close() was deferred, it was not being called until after the attachments were being written resulting in the boundary not being included at all.
* ChangeFolder: do not depend on the msgstoreReto Brunner2019-08-021-6/+6
| | | | | We need to clear the filtering etc upon folder switch. Not having a valid msgstore is however no reason not to switch directories.
* msglist: add initialization stateReto Brunner2019-08-022-15/+33
| | | | | | | | | Make the msglist aware of whether we are still initializing or not. We never stopped spinning the msglist if we didn't get any Directories back from types.ListDirectories. With this change, we can set the init state from the account and display the spinner only if we don't know whether we have directories or not and else the "no messages" string from the config.
* Clean maildirs when openedBen Burwell2019-08-021-0/+4
| | | | This removes old aborted deliveries from the tmp directory.
* Add filesystem completions for :attach and :cdGalen Abell2019-08-022-2/+24
| | | | | Tab-completions now cycle through filesystem paths when using :attach or :cd commands.
* Add CompletePath methodGalen Abell2019-08-021-0/+91
| | | | | CompletePath takes an existing path and returns possible filesystem completions based on that path.
* doc: Fix missing '\' in aerc-tutorial man page.Ronan Pigott2019-07-291-1/+1
|
* aerc-tutorial(7): add searching and expand viewerDrew DeVault2019-07-291-0/+8
|
* Update version to 0.2.1 0.2.1Drew DeVault2019-07-291-1/+1
|
* Change how VERSION is set in MakefileDrew DeVault2019-07-291-1/+1
|
* Fix test failuresDrew DeVault2019-07-291-1/+1
|
* Ring bell when new messages arrive 0.2.0Ben Burwell2019-07-299-4/+56
| | | | | | | | Add a "new-message-bell" option to the UI section of aerc.conf. A new hook into the message store allows the msglist widget to detect new messages being added to the displayed list. When new messages are delivered, and the new-message-bell option is enabled (as it is by default), the terminal will beep.
* lib/msgstore: Fix Select, Next, Prev with filterKevin Kuehler2019-07-291-8/+10
| | | | | | | | When filter is active we want to use store.results instead of store.uids, since we are dealing with a subset of the uids. Otherwise any methods involving len will have undefined behavior. Signed-off-by: Kevin Kuehler <keur@ocf.berkeley.edu>
* Print errors from config load issues.Reto Brunner2019-07-292-4/+4
| | | | | | Currently we /dev/null stdout, if it is a tty. The checkConfigPerms function, as well as the error print were incorrectly writing to stdout and therefore weren't visible to most users.
* Sendmail: allow for arbitrary parametersReto Brunner2019-07-291-1/+11
| | | | Allows the outgoing command to contain arguments and flags
* Add index option to change-tabJeffas2019-07-273-6/+37
| | | | | | | This allows selection of a tab using its index. It attempts to parse the given argument as a number, if it fails then it uses it as a name. Also supports relative indexes using prefixed + or -.
* Add :detach commandGalen Abell2019-07-273-0/+79
| | | | | | | Add a command for removing attachments from a composed message. Syntax is :detach [path], with path being an optional argument specifying the path of one existing attachment. If no path is specified, the first attachment is removed.
* Fix review message not filling entire spaceGalen Abell2019-07-271-1/+1
| | | | | | Adding an attachment, switching to a different tab, and switching back to the review message caused the "filled space" in the review message to disappear, since there was one too many rows in the layout.
* Add missing fallthroughDrew DeVault2019-07-271-0/+2
|
* Update tcellDrew DeVault2019-07-272-2/+5
|
* Update dependenciesSimon Ser2019-07-272-48/+58
| | | | | | A bug corrupting long In-Reply-To headers has been fixed upstream in go-message: https://github.com/emersion/go-message/issues/44
* Implement sendmail supportDrew DeVault2019-07-277-14/+74
|
* Fix tabstrip over-drawing when not enough spaceJeffas2019-07-261-1/+8
| | | | | | | | Tabstrip didn't take into account the width of the context. Now, it just shows as many tabs as can fit and truncates the last one if necessary. In future it probably would be best to ensure that the selected tab is rendered on the screen.
generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2025-07-30 03:16:39 +0000
href='#n1076'>1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 
/* See LICENSE file for copyright and license details.
 *
 * dynamic window manager is designed like any other X client as well. It is
 * driven through handling X events. In contrast to other X clients, a window
 * manager selects for SubstructureRedirectMask on the root window, to receive
 * 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.
 *
 * 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
 * doubly-linked client list, the focus history is remembered through a global
 * stack list. Each client contains a bit array to indicate the tags of a
 * client.
 *
 * Keys and tagging rules are organized as arrays and defined in config.h.
 *
 * To understand everything else, start reading main().
 */
#include <errno.h>
#include <locale.h>
#include <stdarg.h>
#include <stdio.h>
#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>
#include <X11/keysym.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xproto.h>
#include <X11/Xutil.h>
#ifdef XINERAMA
#include <X11/extensions/Xinerama.h>
#endif

/* macros */
#define MAX(a, b)       ((a) > (b) ? (a) : (b))
#define MIN(a, b)       ((a) < (b) ? (a) : (b))
#define BUTTONMASK      (ButtonPressMask|ButtonReleaseMask)
#define CLEANMASK(mask) (mask & ~(numlockmask|LockMask))
#define LENGTH(x)       (sizeof x / sizeof x[0])
#define MAXTAGLEN       16
#define MOUSEMASK       (BUTTONMASK|PointerMotionMask)
#define TAGMASK         ((int)((1LL << LENGTH(tags)) - 1))
#define TEXTW(x)        (textnw(x, strlen(x)) + dc.font.height)

/* enums */
enum { CurNormal, CurResize, CurMove, CurLast };        /* cursor */
enum { ColBorder, ColFG, ColBG, ColLast };              /* color */
enum { NetSupported, NetWMName, NetLast };              /* EWMH atoms */
enum { WMProtocols, WMDelete, WMName, WMState, WMLast };/* default atoms */

/* typedefs */
typedef unsigned int uint;
typedef unsigned long ulong;
typedef struct Client Client;
struct Client {
	char name[256];
	int x, y, w, h;
	int basew, baseh, incw, inch, maxw, maxh, minw, minh;
	float mina, maxa;
	int bw, oldbw;
	Bool isbanned, isfixed, isfloating, ismoved, isurgent;
	uint tags;
	Client *next;
	Client *snext;
	Window win;
};

typedef struct {
	int x, y, w, h;
	ulong norm[ColLast];
	ulong sel[ColLast];
	Drawable drawable;
	GC gc;
	struct {
		int ascent;
		int descent;
		int height;
		XFontSet set;
		XFontStruct *xfont;
	} font;
} DC; /* draw context */

typedef union {
	int i;
	uint ui;
	float f;
	void *v;
} Arg;

typedef struct {
	uint mod;
	KeySym keysym;
	void (*func)(const Arg *);
	const Arg arg;
} Key;

typedef struct {
	const char *symbol;
	void (*arrange)(void);
} Layout;

typedef struct {
	const char *class;
	const char *instance;
	const char *title;
	uint tags;
	Bool isfloating;
} Rule;

/* function declarations */
static void applyrules(Client *c);
static void arrange(void);
static void attach(Client *c);
static void attachstack(Client *c);
static void buttonpress(XEvent *e);
static void checkotherwm(void);
static void cleanup(void);
static void configure(Client *c);
static void configurenotify(XEvent *e);
static void configurerequest(XEvent *e);
static void destroynotify(XEvent *e);
static void detach(Client *c);
static void detachstack(Client *c);
static void drawbar(void);
static void drawsquare(Bool filled, Bool empty, Bool invert, ulong col[ColLast]);
static void drawtext(const char *text, ulong col[ColLast], Bool invert);
static void enternotify(XEvent *e);
static void eprint(const char *errstr, ...);
static void expose(XEvent *e);
static void focus(Client *c);
static void focusin(XEvent *e);
static void focusstack(const Arg *arg);
static Client *getclient(Window w);
static ulong getcolor(const char *colstr);
static long getstate(Window w);
static Bool gettextprop(Window w, Atom atom, char *text, uint size);
static void grabbuttons(Client *c, Bool focused);
static void grabkeys(void);
static void initfont(const char *fontstr);
static Bool isoccupied(uint t);
static Bool isprotodel(Client *c);
static Bool isurgent(uint t);
static void keypress(XEvent *e);
static void killclient(const Arg *arg);
static void manage(Window w, XWindowAttributes *wa);
static void mappingnotify(XEvent *e);
static void maprequest(XEvent *e);
static void movemouse(Client *c);
static Client *nexttiled(Client *c);
static void propertynotify(XEvent *e);
static void quit(const Arg *arg);
static void resize(Client *c, int x, int y, int w, int h, Bool sizehints);
static void resizemouse(Client *c);
static void restack(void);
static void run(void);
static void scan(void);
static void setclientstate(Client *c, long state);
static void setmfact(const Arg *arg);
static void setup(void);
static void spawn(const Arg *arg);
static void tag(const Arg *arg);
static int textnw(const char *text, uint len);
static void tile(void);
static void togglebar(const Arg *arg);
static void togglefloating(const Arg *arg);
static void togglelayout(const Arg *arg);
static void togglemax(const Arg *arg);
static void toggletag(const Arg *arg);
static void toggleview(const Arg *arg);
static void unmanage(Client *c);
static void unmapnotify(XEvent *e);
static void updatebar(void);
static void updategeom(void);
static void updatesizehints(Client *c);
static void updatetitle(Client *c);
static void updatewmhints(Client *c);
static void view(const Arg *arg);
static int xerror(Display *dpy, XErrorEvent *ee);
static int xerrordummy(Display *dpy, XErrorEvent *ee);
static int xerrorstart(Display *dpy, XErrorEvent *ee);
static void zoom(const Arg *arg);

/* variables */
static char stext[256];
static int screen, sx, sy, sw, sh;
static int by, bh, blw, wx, wy, ww, wh;
static uint seltags = 0;
static int (*xerrorxlib)(Display *, XErrorEvent *);
static uint numlockmask = 0;
static void (*handler[LASTEvent]) (XEvent *) = {
	[ButtonPress] = buttonpress,
	[ConfigureRequest] = configurerequest,
	[ConfigureNotify] = configurenotify,
	[DestroyNotify] = destroynotify,
	[EnterNotify] = enternotify,
	[Expose] = expose,
	[FocusIn] = focusin,
	[KeyPress] = keypress,
	[MappingNotify] = mappingnotify,
	[MapRequest] = maprequest,
	[PropertyNotify] = propertynotify,
	[UnmapNotify] = unmapnotify
};
static Atom wmatom[WMLast], netatom[NetLast];
static Bool ismax = False;
static Bool otherwm, readin;
static Bool running = True;
static uint tagset[] = {1, 1}; /* after start, first tag is selected */
static Client *clients = NULL;
static Client *sel = NULL;
static Client *stack = NULL;
static Cursor cursor[CurLast];
static Display *dpy;
static DC dc = {0};
static Window root, barwin;

/* configuration, allows nested code to access above variables */
#include "config.h"

static Layout *lt = layouts;

/* compile-time check if all tags fit into an uint bit array. */
struct NumTags { char limitexceeded[sizeof(uint) * 8 < LENGTH(tags) ? -1 : 1]; };

/* function implementations */
void
applyrules(Client *c) {
	uint i;
	Rule *r;
	XClassHint ch = { 0 };

	/* rule matching */
	XGetClassHint(dpy, c->win, &ch);
	for(i = 0; i < LENGTH(rules); i++) {
		r = &rules[i];
		if((!r->title || strstr(c->name, r->title))
		&& (!r->class || (ch.res_class && strstr(ch.res_class, r->class)))
		&& (!r->instance || (ch.res_name && strstr(ch.res_name, r->instance)))) {
			c->isfloating = r->isfloating;
			c->tags |= r->tags & TAGMASK;
		}
	}
	if(ch.res_class)
		XFree(ch.res_class);
	if(ch.res_name)
		XFree(ch.res_name);
	if(!c->tags)
		c->tags = tagset[seltags];
}

void
arrange(void) {
	Client *c;

	for(c = clients; c; c = c->next)
		if(c->tags & tagset[seltags]) { /* is visible */
			if(ismax && !c->isfixed) {
				XMoveResizeWindow(dpy, c->win, wx, wy, ww - 2 * c->bw, wh - 2 * c->bw);
				c->ismoved = True;
			}
			else if(!lt->arrange || c->isfloating)
				resize(c, c->x, c->y, c->w, c->h, True);
			c->isbanned = False;
		}
		else if(!c->isbanned) {
			XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
			c->isbanned = c->ismoved = True;
		}

	focus(NULL);
	if(lt->arrange && !ismax)
		lt->arrange();
	restack();
}

void
attach(Client *c) {
	c->next = clients;
	clients = c;
}

void
attachstack(Client *c) {
	c->snext = stack;
	stack = c;
}

void
buttonpress(XEvent *e) {
	uint i, mask;
	int x;
	Client *c;
	XButtonPressedEvent *ev = &e->xbutton;

	if(ev->window == barwin) {
		x = 0;
		for(i = 0; i < LENGTH(tags); i++) {
			x += TEXTW(tags[i]);
			if(ev->x < x) {
				mask = 1 << i;
				if(ev->button == Button1) {
					if(ev->state & MODKEY)
						tag((Arg*)&mask);
					else
						view((Arg*)&mask);
				}
				else if(ev->button == Button3) {
					if(ev->state & MODKEY)
						toggletag((Arg*)&mask);
					else
						toggleview((Arg*)&mask);
				}
				return;
			}
		}
		if(ev->x < x + blw) {
			if(ev->button == Button1) 
				togglelayout(NULL);
			else if(ev->button == Button3) 
				togglemax(NULL);
		}
	}
	else if((c = getclient(ev->window))) {
		focus(c);
		if(CLEANMASK(ev->state) != MODKEY || (ismax && !c->isfixed))
			return;
		if(ev->button == Button1)
			movemouse(c);
		else if(ev->button == Button2)
			togglefloating(NULL);
		else if(ev->button == Button3 && !c->isfixed)
			resizemouse(c);
	}
}

void
checkotherwm(void) {
	otherwm = False;
	XSetErrorHandler(xerrorstart);

	/* this causes an error if some other window manager is running */
	XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
	XSync(dpy, False);
	if(otherwm)
		eprint("dwm: another window manager is already running\n");
	XSetErrorHandler(NULL);
	xerrorxlib = XSetErrorHandler(xerror);
	XSync(dpy, False);
}

void
cleanup(void) {
	Arg a = {.i = ~0};
	close(STDIN_FILENO);
	view(&a);
	while(stack)
		unmanage(stack);
	if(dc.font.set)
		XFreeFontSet(dpy, dc.font.set);
	else
		XFreeFont(dpy, dc.font.xfont);
	XUngrabKey(dpy, AnyKey, AnyModifier, root);
	XFreePixmap(dpy, dc.drawable);
	XFreeGC(dpy, dc.gc);
	XFreeCursor(dpy, cursor[CurNormal]);
	XFreeCursor(dpy, cursor[CurResize]);
	XFreeCursor(dpy, cursor[CurMove]);
	XDestroyWindow(dpy, barwin);
	XSync(dpy, False);
	XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
}

void
configure(Client *c) {
	XConfigureEvent ce;

	ce.type = ConfigureNotify;
	ce.display = dpy;
	ce.event = c->win;
	ce.window = c->win;
	ce.x = c->x;
	ce.y = c->y;
	ce.width = c->w;
	ce.height = c->h;
	ce.border_width = c->bw;
	ce.above = None;
	ce.override_redirect = False;
	XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
}

void
configurenotify(XEvent *e) {
	XConfigureEvent *ev = &e->xconfigure;

	if(ev->window == root && (ev->width != sw || ev->height != sh)) {
		sw = ev->width;
		sh = ev->height;
		updategeom();
		updatebar();
		arrange();
	}
}

void
configurerequest(XEvent *e) {
	Client *c;
	XConfigureRequestEvent *ev = &e->xconfigurerequest;
	XWindowChanges wc;

	if((c = getclient(ev->window))) {
		if(ev->value_mask & CWBorderWidth)
			c->bw = ev->border_width;
		if(ismax && !c->isbanned && !c->isfixed)
			XMoveResizeWindow(dpy, c->win, wx, wy, ww - 2 * c->bw, wh + 2 * c->bw);
		else if(c->isfloating || !lt->arrange) {
			if(ev->value_mask & CWX)
				c->x = sx + ev->x;
			if(ev->value_mask & CWY)
				c->y = sy + ev->y;
			if(ev->value_mask & CWWidth)
				c->w = ev->width;
			if(ev->value_mask & CWHeight)
				c->h = ev->height;
			if((c->x - sx + c->w) > sw && c->isfloating)
				c->x = sx + (sw / 2 - c->w / 2); /* center in x direction */
			if((c->y - sy + c->h) > sh && c->isfloating)
				c->y = sy + (sh / 2 - c->h / 2); /* center in y direction */
			if((ev->value_mask & (CWX|CWY))
			&& !(ev->value_mask & (CWWidth|CWHeight)))
				configure(c);
			if(!c->isbanned)
				XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
		}
		else
			configure(c);
	}
	else {
		wc.x = ev->x;
		wc.y = ev->y;
		wc.width = ev->width;
		wc.height = ev->height;
		wc.border_width = ev->border_width;
		wc.sibling = ev->above;
		wc.stack_mode = ev->detail;
		XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
	}
	XSync(dpy, False);
}

void
destroynotify(XEvent *e) {
	Client *c;
	XDestroyWindowEvent *ev = &e->xdestroywindow;

	if((c = getclient(ev->window)))
		unmanage(c);
}

void
detach(Client *c) {
	Client *i;

	if (c != clients) {
		for(i = clients; i->next != c; i = i->next);
		i->next = c->next;
	}
	else {
		clients = c->next;
	}
	c->next =  NULL;
}

void
detachstack(Client *c) {
	Client **tc;

	for(tc = &stack; *tc && *tc != c; tc = &(*tc)->snext);
	*tc = c->snext;
}

void
drawbar(void) {
	int i, x;
	Client *c;

	dc.x = 0;
	for(c = stack; c && c->isbanned; c = c->snext);
	for(i = 0; i < LENGTH(tags); i++) {
		dc.w = TEXTW(tags[i]);
		if(tagset[seltags] & 1 << i) {
			drawtext(tags[i], dc.sel, isurgent(i));
			drawsquare(c && c->tags & 1 << i, isoccupied(i), isurgent(i), dc.sel);
		}
		else {
			drawtext(tags[i], dc.norm, isurgent(i));
			drawsquare(c && c->tags & 1 << i, isoccupied(i), isurgent(i), dc.norm);
		}
		dc.x += dc.w;
	}
	if(blw > 0) {
		dc.w = blw;
		drawtext(lt->symbol, dc.norm, ismax);
		x = dc.x + dc.w;
	}
	else
		x = dc.x;
	dc.w = TEXTW(stext);
	dc.x = ww - dc.w;
	if(dc.x < x) {
		dc.x = x;
		dc.w = ww - x;
	}
	drawtext(stext, dc.norm, False);
	if((dc.w = dc.x - x) > bh) {
		dc.x = x;
		if(c) {
			drawtext(c->name, dc.sel, False);
			drawsquare(c->isfixed, c->isfloating, False, dc.sel);
		}
		else
			drawtext(NULL, dc.norm, False);
	}
	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, ww, bh, 0, 0);
	XSync(dpy, False);
}

void
drawsquare(Bool filled, Bool empty, Bool invert, ulong col[ColLast]) {
	int x;
	XGCValues gcv;
	XRectangle r = { dc.x, dc.y, dc.w, dc.h };

	gcv.foreground = col[invert ? ColBG : ColFG];
	XChangeGC(dpy, dc.gc, GCForeground, &gcv);
	x = (dc.font.ascent + dc.font.descent + 2) / 4;
	r.x = dc.x + 1;
	r.y = dc.y + 1;
	if(filled) {
		r.width = r.height = x + 1;
		XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
	}
	else if(empty) {
		r.width = r.height = x;
		XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1);
	}
}

void
drawtext(const char *text, ulong col[ColLast], Bool invert) {
	int i, x, y, h, len, olen;
	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
	char buf[256];

	XSetForeground(dpy, dc.gc, col[invert ? ColFG : ColBG]);
	XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
	if(!text)
		return;
	olen = strlen(text);
	len = MIN(olen, sizeof buf);
	memcpy(buf, text, len);
	h = dc.font.ascent + dc.font.descent;
	y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
	x = dc.x + (h / 2);
	/* shorten text if necessary */
	for(; len && (i = textnw(buf, len)) > dc.w - h; len--);
	if(!len)
		return;
	if(len < olen)
		for(i = len; i && i > len - 3; buf[--i] = '.');
	XSetForeground(dpy, dc.gc, col[invert ? ColBG : ColFG]);
	if(dc.font.set)
		XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
	else
		XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
}

void
enternotify(XEvent *e) {
	Client *c;
	XCrossingEvent *ev = &e->xcrossing;

	if((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
		return;
	if((c = getclient(ev->window)))
		focus(c);
	else
		focus(NULL);
}

void
eprint(const char *errstr, ...) {
	va_list ap;

	va_start(ap, errstr);
	vfprintf(stderr, errstr, ap);
	va_end(ap);
	exit(EXIT_FAILURE);
}

void
expose(XEvent *e) {
	XExposeEvent *ev = &e->xexpose;

	if(ev->count == 0 && (ev->window == barwin))
		drawbar();
}

void
focus(Client *c) {
	if(!c || c->isbanned)
		for(c = stack; c && c->isbanned; c = c->snext);
	if(sel && sel != c) {
		grabbuttons(sel, False);
		XSetWindowBorder(dpy, sel->win, dc.norm[ColBorder]);
	}
	if(c) {
		detachstack(c);
		attachstack(c);
		grabbuttons(c, True);
		XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
		XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
	}
	else
		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
	sel = c;
	drawbar();
}

void
focusin(XEvent *e) { /* there are some broken focus acquiring clients */
	XFocusChangeEvent *ev = &e->xfocus;

	if(sel && ev->window != sel->win)
		XSetInputFocus(dpy, sel->win, RevertToPointerRoot, CurrentTime);
}

void
focusstack(const Arg *arg) {
	Client *c = NULL, *i;

	if(!sel)
		return;
	if (arg->i > 0) {
		for(c = sel->next; c && c->isbanned; c = c->next);
		if(!c)
			for(c = clients; c && c->isbanned; c = c->next);
	}
	else {
		for(i = clients; i != sel; i = i->next)
			if (!i->isbanned)
				c = i;
		if(!c) 
			for(; i; i = i->next)
				if (!i->isbanned)
					c = i;
	}
	if(c) {
		focus(c);
		restack();
	}
}

Client *
getclient(Window w) {
	Client *c;

	for(c = clients; c && c->win != w; c = c->next);
	return c;
}

ulong
getcolor(const char *colstr) {
	Colormap cmap = DefaultColormap(dpy, screen);
	XColor color;

	if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
		eprint("error, cannot allocate color '%s'\n", colstr);
	return color.pixel;
}

long
getstate(Window w) {
	int format, status;
	long result = -1;
	unsigned char *p = NULL;
	ulong n, extra;
	Atom real;

	status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
			&real, &format, &n, &extra, (unsigned char **)&p);
	if(status != Success)
		return -1;
	if(n != 0)
		result = *p;
	XFree(p);
	return result;
}

Bool
gettextprop(Window w, Atom atom, char *text, uint size) {
	char **list = NULL;
	int n;
	XTextProperty name;

	if(!text || size == 0)
		return False;
	text[0] = '\0';
	XGetTextProperty(dpy, w, &name, atom);
	if(!name.nitems)
		return False;
	if(name.encoding == XA_STRING)
		strncpy(text, (char *)name.value, size - 1);
	else {
		if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
		&& n > 0 && *list) {
			strncpy(text, *list, size - 1);
			XFreeStringList(list);
		}
	}
	text[size - 1] = '\0';
	XFree(name.value);
	return True;
}

void
grabbuttons(Client *c, Bool focused) {
	int i, j;
	uint buttons[]   = { Button1, Button2, Button3 };
	uint modifiers[] = { MODKEY, MODKEY|LockMask, MODKEY|numlockmask, MODKEY|numlockmask|LockMask };

	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
	if(focused)
		for(i = 0; i < LENGTH(buttons); i++)
			for(j = 0; j < LENGTH(modifiers); j++)
				XGrabButton(dpy, buttons[i], modifiers[j], c->win, False,
					BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
	else
		XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
			BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
}

void
grabkeys(void) {
	uint i, j;
	KeyCode code;
	XModifierKeymap *modmap;

	/* init modifier map */
	modmap = XGetModifierMapping(dpy);
	for(i = 0; i < 8; i++)
		for(j = 0; j < modmap->max_keypermod; j++) {
			if(modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode(dpy, XK_Num_Lock))
				numlockmask = (1 << i);
		}
	XFreeModifiermap(modmap);

	XUngrabKey(dpy, AnyKey, AnyModifier, root);
	for(i = 0; i < LENGTH(keys); i++) {
		code = XKeysymToKeycode(dpy, keys[i].keysym);
		XGrabKey(dpy, code, keys[i].mod, root, True,
				GrabModeAsync, GrabModeAsync);
		XGrabKey(dpy, code, keys[i].mod|LockMask, root, True,
				GrabModeAsync, GrabModeAsync);
		XGrabKey(dpy, code, keys[i].mod|numlockmask, root, True,
				GrabModeAsync, GrabModeAsync);
		XGrabKey(dpy, code, keys[i].mod|numlockmask|LockMask, root, True,
				GrabModeAsync, GrabModeAsync);
	}
}

void
initfont(const char *fontstr) {
	char *def, **missing;
	int i, n;

	missing = NULL;
	if(dc.font.set)
		XFreeFontSet(dpy, dc.font.set);
	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
	if(missing) {
		while(n--)
			fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]);
		XFreeStringList(missing);
	}
	if(dc.font.set) {
		XFontSetExtents *font_extents;
		XFontStruct **xfonts;
		char **font_names;
		dc.font.ascent = dc.font.descent = 0;
		font_extents = XExtentsOfFontSet(dc.font.set);
		n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
		for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
			dc.font.ascent = MAX(dc.font.ascent, (*xfonts)->ascent);
			dc.font.descent = MAX(dc.font.descent,(*xfonts)->descent);
			xfonts++;
		}
	}
	else {
		if(dc.font.xfont)
			XFreeFont(dpy, dc.font.xfont);
		dc.font.xfont = NULL;
		if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
		&& !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
			eprint("error, cannot load font: '%s'\n", fontstr);
		dc.font.ascent = dc.font.xfont->ascent;
		dc.font.descent = dc.font.xfont->descent;
	}
	dc.font.height = dc.font.ascent + dc.font.descent;
}

Bool
isoccupied(uint t) {
	Client *c;

	for(c = clients; c; c = c->next)
		if(c->tags & 1 << t)
			return True;
	return False;
}

Bool
isprotodel(Client *c) {
	int i, n;
	Atom *protocols;
	Bool ret = False;

	if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
		for(i = 0; !ret && i < n; i++)
			if(protocols[i] == wmatom[WMDelete])
				ret = True;
		XFree(protocols);
	}
	return ret;
}

Bool
isurgent(uint t) {
	Client *c;

	for(c = clients; c; c = c->next)
		if(c->isurgent && c->tags & 1 << t)
			return True;
	return False;
}

void
keypress(XEvent *e) {
	uint i;
	KeySym keysym;
	XKeyEvent *ev;

	ev = &e->xkey;
	keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
	for(i = 0; i < LENGTH(keys); i++)
		if(keysym == keys[i].keysym
		   && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
		   && keys[i].func)
			keys[i].func(&(keys[i].arg));
}

void
killclient(const Arg *arg) {
	XEvent ev;

	if(!sel)
		return;
	if(isprotodel(sel)) {
		ev.type = ClientMessage;
		ev.xclient.window = sel->win;
		ev.xclient.message_type = wmatom[WMProtocols];
		ev.xclient.format = 32;
		ev.xclient.data.l[0] = wmatom[WMDelete];
		ev.xclient.data.l[1] = CurrentTime;
		XSendEvent(dpy, sel->win, False, NoEventMask, &ev);
	}
	else
		XKillClient(dpy, sel->win);
}

void
manage(Window w, XWindowAttributes *wa) {
	Client *c, *t = NULL;
	Status rettrans;
	Window trans;
	XWindowChanges wc;

	if(!(c = calloc(1, sizeof(Client))))
		eprint("fatal: could not calloc() %u bytes\n", sizeof(Client));
	c->win = w;

	/* geometry */
	c->x = wa->x;
	c->y = wa->y;
	c->w = wa->width;
	c->h = wa->height;
	c->oldbw = wa->border_width;
	if(c->w == sw && c->h == sh) {
		c->x = sx;
		c->y = sy;
		c->bw = wa->border_width;
	}
	else {
		if(c->x + c->w + 2 * c->bw > sx + sw)
			c->x = sx + sw - c->w - 2 * c->bw;
		if(c->y + c->h + 2 * c->bw > sy + sh)
			c->y = sy + sh - c->h - 2 * c->bw;
		c->x = MAX(c->x, sx);
		c->y = MAX(c->y, by == 0 ? bh : sy);
		c->bw = borderpx;
	}

	wc.border_width = c->bw;
	XConfigureWindow(dpy, w, CWBorderWidth, &wc);
	XSetWindowBorder(dpy, w, dc.norm[ColBorder]);
	configure(c); /* propagates border_width, if size doesn't change */
	updatesizehints(c);
	XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
	grabbuttons(c, False);
	updatetitle(c);
	if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
		for(t = clients; t && t->win != trans; t = t->next);
	if(t)
		c->tags = t->tags;
	else
		applyrules(c);
	if(!c->isfloating)
		c->isfloating = (rettrans == Success) || c->isfixed;
	if(c->isfloating)
		XRaiseWindow(dpy, c->win);
	attach(c);
	attachstack(c);
	XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); /* some windows require this */
	XMapWindow(dpy, c->win);
	setclientstate(c, NormalState);
	arrange();
}

void
mappingnotify(XEvent *e) {
	XMappingEvent *ev = &e->xmapping;

	XRefreshKeyboardMapping(ev);
	if(ev->request == MappingKeyboard)
		grabkeys();
}

void
maprequest(XEvent *e) {
	static XWindowAttributes wa;
	XMapRequestEvent *ev = &e->xmaprequest;

	if(!XGetWindowAttributes(dpy, ev->window, &wa))
		return;
	if(wa.override_redirect)
		return;
	if(!getclient(ev->window))
		manage(ev->window, &wa);
}

void
movemouse(Client *c) {
	int x1, y1, ocx, ocy, di, nx, ny;
	uint dui;
	Window dummy;
	XEvent ev;

	restack();
	ocx = nx = c->x;
	ocy = ny = c->y;
	if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
	None, cursor[CurMove], CurrentTime) != GrabSuccess)
		return;
	XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
	for(;;) {
		XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
		switch (ev.type) {
		case ButtonRelease:
			XUngrabPointer(dpy, CurrentTime);
			return;
		case ConfigureRequest:
		case Expose:
		case MapRequest:
			handler[ev.type](&ev);
			break;
		case MotionNotify:
			XSync(dpy, False);
			nx = ocx + (ev.xmotion.x - x1);
			ny = ocy + (ev.xmotion.y - y1);
			if(snap && nx >= wx && nx <= wx + ww
			        && ny >= wy && ny <= wy + wh) {
				if(abs(wx - nx) < snap)
					nx = wx;
				else if(abs((wx + ww) - (nx + c->w + 2 * c->bw)) < snap)
					nx = wx + ww - c->w - 2 * c->bw;
				if(abs(wy - ny) < snap)
					ny = wy;
				else if(abs((wy + wh) - (ny + c->h + 2 * c->bw)) < snap)
					ny = wy + wh - c->h - 2 * c->bw;
				if(!c->isfloating && lt->arrange && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
					togglefloating(NULL);
			}
			if(!lt->arrange || c->isfloating)
				resize(c, nx, ny, c->w, c->h, False);
			break;
		}
	}
}

Client *
nexttiled(Client *c) {
	for(; c && (c->isfloating || c->isbanned); c = c->next);
	return c;
}

void
propertynotify(XEvent *e) {
	Client *c;
	Window trans;
	XPropertyEvent *ev = &e->xproperty;

	if(ev->state == PropertyDelete)
		return; /* ignore */
	if((c = getclient(ev->window))) {
		switch (ev->atom) {
		default: break;
		case XA_WM_TRANSIENT_FOR:
			XGetTransientForHint(dpy, c->win, &trans);
			if(!c->isfloating && (c->isfloating = (getclient(trans) != NULL)))
				arrange();
			break;
		case XA_WM_NORMAL_HINTS:
			updatesizehints(c);
			break;
		case XA_WM_HINTS:
			updatewmhints(c);
			drawbar();
			break;
		}
		if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
			updatetitle(c);
			if(c == sel)
				drawbar();
		}
	}
}

void
quit(const Arg *arg) {
	readin = running = False;
}

void
resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
	XWindowChanges wc;

	if(sizehints) {
		/* set minimum possible */
		w = MAX(1, w);
		h = MAX(1, h);

		/* temporarily remove base dimensions */
		w -= c->basew;
		h -= c->baseh;

		/* adjust for aspect limits */
		if(c->mina > 0 && c->maxa > 0) {
			if(c->maxa < (float) w/h)
				w = h * c->maxa;
			else if(c->mina > (float) h/w)
				h = w * c->mina;
		}

		/* adjust for increment value */
		if(c->incw)
			w -= w % c->incw;
		if(c->inch)
			h -= h % c->inch;

		/* restore base dimensions */
		w += c->basew;
		h += c->baseh;

		w = MAX(w, c->minw);
		h = MAX(h, c->minh);
		
		if (c->maxw)
			w = MIN(w, c->maxw);

		if (c->maxh)
			h = MIN(h, c->maxh);
	}
	if(w <= 0 || h <= 0)
		return;
	if(x > sx + sw)
		x = sw - w - 2 * c->bw;
	if(y > sy + sh)
		y = sh - h - 2 * c->bw;
	if(x + w + 2 * c->bw < sx)
		x = sx;
	if(y + h + 2 * c->bw < sy)
		y = sy;
	if(h < bh)
		h = bh;
	if(w < bh)
		w = bh;
	if(c->x != x || c->y != y || c->w != w || c->h != h || c->ismoved) {
		c->ismoved = False;
		c->x = wc.x = x;
		c->y = wc.y = y;
		c->w = wc.width = w;
		c->h = wc.height = h;
		wc.border_width = c->bw;
		XConfigureWindow(dpy, c->win,
				CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
		configure(c);
		XSync(dpy, False);
	}
}

void
resizemouse(Client *c) {
	int ocx, ocy;
	int nw, nh;
	XEvent ev;

	restack();
	ocx = c->x;
	ocy = c->y;
	if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
	None, cursor[CurResize], CurrentTime) != GrabSuccess)
		return;
	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
	for(;;) {
		XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask , &ev);
		switch(ev.type) {
		case ButtonRelease:
			XWarpPointer(dpy, None, c->win, 0, 0, 0, 0,
					c->w + c->bw - 1, c->h + c->bw - 1);
			XUngrabPointer(dpy, CurrentTime);
			while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
			return;
		case ConfigureRequest:
		case Expose:
		case MapRequest:
			handler[ev.type](&ev);
			break;
		case MotionNotify:
			XSync(dpy, False);
			nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
			nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);

			if(snap && nw >= wx && nw <= wx + ww
			        && nh >= wy && nh <= wy + wh) {
				if(!c->isfloating && lt->arrange
				   && (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
					togglefloating(NULL);
			}
			if(!lt->arrange || c->isfloating)
				resize(c, c->x, c->y, nw, nh, True);
			break;
		}
	}
}

void
restack(void) {
	Client *c;
	XEvent ev;
	XWindowChanges wc;

	drawbar();
	if(!sel)
		return;
	if(ismax || sel->isfloating || !lt->arrange)
		XRaiseWindow(dpy, sel->win);
	if(!ismax && lt->arrange) {
		wc.stack_mode = Below;
		wc.sibling = barwin;
		for(c = stack; c; c = c->snext)
			if(!c->isfloating && !c->isbanned) {
				XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
				wc.sibling = c->win;
			}
	}
	XSync(dpy, False);
	while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
}

void
run(void) {
	char *p;
	char sbuf[sizeof stext];
	fd_set rd;
	int r, xfd;
	uint len, offset;
	XEvent ev;

	/* main event loop, also reads status text from stdin */
	XSync(dpy, False);
	xfd = ConnectionNumber(dpy);
	readin = True;
	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;
			eprint("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 */
		}
	}
}

void
scan(void) {
	uint i, num;
	Window *wins, d1, d2;
	XWindowAttributes wa;

	wins = NULL;
	if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
		for(i = 0; i < num; i++) {
			if(!XGetWindowAttributes(dpy, wins[i], &wa)
			|| wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
				continue;
			if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
				manage(wins[i], &wa);
		}
		for(i = 0; i < num; i++) { /* now the transients */
			if(!XGetWindowAttributes(dpy, wins[i], &wa))
				continue;
			if(XGetTransientForHint(dpy, wins[i], &d1)
			&& (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
				manage(wins[i], &wa);
		}
	}
	if(wins)
		XFree(wins);
}

void
setclientstate(Client *c, long state) {
	long data[] = {state, None};

	XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
			PropModeReplace, (unsigned char *)data, 2);
}

/* arg > 1.0 will set mfact absolutly */
void
setmfact(const Arg *arg) {
	float f;

	if(!arg || !lt->arrange)
		return;
	f = arg->f < 1.0 ? arg->f + mfact : arg->f - 1.0;
	if(f < 0.1 || f > 0.9)
		return;
	mfact = f;
	arrange();
}

void
setup(void) {
	uint i;
	int w;
	XSetWindowAttributes wa;

	/* init screen */
	screen = DefaultScreen(dpy);
	root = RootWindow(dpy, screen);
	initfont(FONT);
	sx = 0;
	sy = 0;
	sw = DisplayWidth(dpy, screen);
	sh = DisplayHeight(dpy, screen);
	bh = dc.font.height + 2;
	updategeom();

	/* init atoms */
	wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
	wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
	wmatom[WMName] = XInternAtom(dpy, "WM_NAME", False);
	wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
	netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
	netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);

	/* init cursors */
	wa.cursor = cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
	cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
	cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);

	/* init appearance */
	dc.norm[ColBorder] = getcolor(NORMBORDERCOLOR);
	dc.norm[ColBG] = getcolor(NORMBGCOLOR);
	dc.norm[ColFG] = getcolor(NORMFGCOLOR);
	dc.sel[ColBorder] = getcolor(SELBORDERCOLOR);
	dc.sel[ColBG] = getcolor(SELBGCOLOR);
	dc.sel[ColFG] = getcolor(SELFGCOLOR);
	initfont(FONT);
	dc.h = bh;
	dc.drawable = XCreatePixmap(dpy, root, DisplayWidth(dpy, screen), bh, DefaultDepth(dpy, screen));
	dc.gc = XCreateGC(dpy, root, 0, 0);
	XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
	if(!dc.font.set)
		XSetFont(dpy, dc.gc, dc.font.xfont->fid);

	/* init bar */
	for(blw = i = 0; LENGTH(layouts) > 1 && i < LENGTH(layouts); i++) {
		w = TEXTW(layouts[i].symbol);
		blw = MAX(blw, w);
	}

	wa.override_redirect = 1;
	wa.background_pixmap = ParentRelative;
	wa.event_mask = ButtonPressMask|ExposureMask;

	barwin = XCreateWindow(dpy, root, wx, by, ww, bh, 0, DefaultDepth(dpy, screen),
			CopyFromParent, DefaultVisual(dpy, screen),
			CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
	XDefineCursor(dpy, barwin, cursor[CurNormal]);
	XMapRaised(dpy, barwin);
	strcpy(stext, "dwm-"VERSION);
	drawbar();

	/* EWMH support per view */
	XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
			PropModeReplace, (unsigned char *) netatom, NetLast);

	/* select for events */
	wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask
			|EnterWindowMask|LeaveWindowMask|StructureNotifyMask;
	XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
	XSelectInput(dpy, root, wa.event_mask);


	/* grab keys */
	grabkeys();
}

void
spawn(const Arg *arg) {
	/* The double-fork construct avoids zombie processes and keeps the code
	 * clean from stupid signal handlers. */
	if(fork() == 0) {
		if(fork() == 0) {
			if(dpy)
				close(ConnectionNumber(dpy));
			setsid();
			execvp(((char **)arg->v)[0], (char **)arg->v);
			fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]);
			perror(" failed");
		}
		exit(0);
	}
	wait(0);
}

void
tag(const Arg *arg) {
	if(sel && arg->ui & TAGMASK) {
		sel->tags = arg->ui & TAGMASK;
		arrange();
	}
}

int
textnw(const char *text, uint len) {
	XRectangle r;

	if(dc.font.set) {
		XmbTextExtents(dc.font.set, text, len, NULL, &r);
		return r.width;
	}
	return XTextWidth(dc.font.xfont, text, len);
}

void
tile(void) {
	int x, y, h, w, mw;
	uint i, n;
	Client *c;

	for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next), n++);
	if(n == 0)
		return;

	/* master */
	c = nexttiled(clients);
	mw = mfact * ww;
	resize(c, wx, wy, (n == 1 ? ww : mw) - 2 * c->bw, wh - 2 * c->bw, resizehints);

	if(--n == 0)
		return;

	/* tile stack */
	x = (wx + mw > c->x + c->w) ? c->x + c->w + 2 * c->bw : wx + mw;
	y = wy;
	w = (wx + mw > c->x + c->w) ? wx + ww - x : ww - mw;
	h = wh / n;
	if(h < bh)
		h = wh;

	for(i = 0, c = nexttiled(c->next); c; c = nexttiled(c->next), i++) {
		resize(c, x, y, w - 2 * c->bw, /* remainder */ ((i + 1 == n)
		       ? (wy + wh) - y : h) - 2 * c->bw, resizehints);
		if(h != wh)
			y = c->y + c->h + 2 * c->bw;
	}
}

void
togglebar(const Arg *arg) {
	showbar = !showbar;
	updategeom();
	updatebar();
	arrange();
}

void
togglefloating(const Arg *arg) {
	if(!sel)
		return;
	sel->isfloating = !sel->isfloating || sel->isfixed;
	if(sel->isfloating)
		resize(sel, sel->x, sel->y, sel->w, sel->h, True);
	arrange();
}

void
togglelayout(const Arg *arg) {
	if(++lt == &layouts[LENGTH(layouts)])
		lt = &layouts[0];
	if(sel)
		arrange();
	else
		drawbar();
}

void
togglemax(const Arg *arg) {
	ismax = !ismax;
	arrange();
}

void
toggletag(const Arg *arg) {
	if(sel && (sel->tags ^= (arg->ui & TAGMASK)))
		arrange();
}

void
toggleview(const Arg *arg) {
	if((tagset[seltags] ^= (arg->ui & TAGMASK)))
		arrange();
}

void
unmanage(Client *c) {
	XWindowChanges wc;

	wc.border_width = c->oldbw;
	/* The server grab construct avoids race conditions. */
	XGrabServer(dpy);
	XSetErrorHandler(xerrordummy);
	XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
	detach(c);
	detachstack(c);
	if(sel == c)
		focus(NULL);
	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
	setclientstate(c, WithdrawnState);
	free(c);
	XSync(dpy, False);
	XSetErrorHandler(xerror);
	XUngrabServer(dpy);
	arrange();
}

void
unmapnotify(XEvent *e) {
	Client *c;
	XUnmapEvent *ev = &e->xunmap;

	if((c = getclient(ev->window)))
		unmanage(c);
}

void
updatebar(void) {
	if(dc.drawable != 0)
		XFreePixmap(dpy, dc.drawable);
	dc.drawable = XCreatePixmap(dpy, root, ww, bh, DefaultDepth(dpy, screen));
	XMoveResizeWindow(dpy, barwin, wx, by, ww, bh);
}

void
updategeom(void) {
#ifdef XINERAMA
	int i;
	XineramaScreenInfo *info = NULL;

	/* window area geometry */
	if(XineramaIsActive(dpy)) {
		info = XineramaQueryScreens(dpy, &i);
		wx = info[0].x_org;
		wy = showbar && topbar ? info[0].y_org + bh : info[0].y_org;
		ww = info[0].width;
		wh = showbar ? info[0].height - bh : info[0].height;
		XFree(info);
	}
	else
#endif
	{
		wx = sx;
		wy = showbar && topbar ? sy + bh : sy;
		ww = sw;
		wh = showbar ? sh - bh : sh;
	}

	/* bar position */
	by = showbar ? (topbar ? wy - bh : wy + wh) : -bh;
}

void
updatesizehints(Client *c) {
	long msize;
	XSizeHints size;

	XGetWMNormalHints(dpy, c->win, &size, &msize);
	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->mina = (float)size.min_aspect.y / (float)size.min_aspect.x;
		c->maxa = (float)size.max_aspect.x / (float)size.max_aspect.y;
	}
	else
		c->maxa = c->mina = 0.0;
	c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
			&& c->maxw == c->minw && c->maxh == c->minh);
}

void
updatetitle(Client *c) {
	if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
		gettextprop(c->win, wmatom[WMName], c->name, sizeof c->name);
}

void
updatewmhints(Client *c) {
	XWMHints *wmh;

	if((wmh = XGetWMHints(dpy, c->win))) {
		if(c == sel)
			sel->isurgent = False;
		else
			c->isurgent = (wmh->flags & XUrgencyHint) ? True : False;
		XFree(wmh);
	}
}

void
view(const Arg *arg) {
	seltags ^= 1; /* toggle sel tagset */
	if(arg && (arg->ui & TAGMASK))
		tagset[seltags] = arg->i & TAGMASK;
	arrange();
}

/* There's no way to check accesses to destroyed windows, thus those cases are
 * ignored (especially on UnmapNotify's).  Other types of errors call Xlibs
 * default error handler, which may call exit.  */
int
xerror(Display *dpy, XErrorEvent *ee) {
	if(ee->error_code == BadWindow
	|| (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
	|| (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
	|| (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
	|| (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
	|| (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
	|| (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
	|| (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
	|| (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
		return 0;
	fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
			ee->request_code, ee->error_code);
	return xerrorxlib(dpy, ee); /* may call exit */
}

int
xerrordummy(Display *dpy, XErrorEvent *ee) {
	return 0;
}

/* Startup Error handler to check if another window manager
 * is already running. */
int
xerrorstart(Display *dpy, XErrorEvent *ee) {
	otherwm = True;
	return -1;
}

void
zoom(const Arg *arg) {
	Client *c = sel;

	if(ismax || !lt->arrange || (sel && sel->isfloating))
		return;
	if(c == nexttiled(clients))
		if(!c || !(c = nexttiled(c->next)))
			return;
	detach(c);
	attach(c);
	focus(c);
	arrange();
}

int
main(int argc, char *argv[]) {
	if(argc == 2 && !strcmp("-v", argv[1]))
		eprint("dwm-"VERSION", © 2006-2008 dwm engineers, see LICENSE for details\n");
	else if(argc != 1)
		eprint("usage: dwm [-v]\n");

	setlocale(LC_CTYPE, "");
	if(!(dpy = XOpenDisplay(0)))
		eprint("dwm: cannot open display\n");

	checkotherwm();
	setup();
	scan();
	run();
	cleanup();

	XCloseDisplay(dpy);
	return 0;
}
generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2025-07-30 03:16:39 +0000