2007-05-30 06:19:28 -04:00
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/* See LICENSE file for copyright and license details.
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2006-09-12 02:14:22 -04:00
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*
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* dynamic window manager is designed like any other X client as well. It is
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* driven through handling X events. In contrast to other X clients, a window
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2006-09-19 10:13:44 -04:00
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* manager selects for SubstructureRedirectMask on the root window, to receive
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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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2006-09-12 02:14:22 -04:00
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*
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2006-09-19 10:13:44 -04:00
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* Calls to fetch an X event from the event queue are blocking. Due reading
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2006-09-20 03:40:35 -04:00
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* status text from standard input, a select()-driven main loop has been
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2006-09-19 10:13:44 -04:00
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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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2006-09-12 02:14:22 -04:00
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*
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2006-09-12 03:50:06 -04:00
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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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* doubly-linked client list, the focus history is remembered through a global
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* stack list. Each client contains an array of Bools of the same size as the
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* global tags array to indicate the tags of a client. For each client dwm
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2006-09-19 10:13:44 -04:00
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* creates a small title window, which is resized whenever the (_NET_)WM_NAME
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* properties are updated or the client is moved/resized.
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2006-09-12 02:14:22 -04:00
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*
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2006-09-12 03:46:19 -04:00
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* Keys and tagging rules are organized as arrays and defined in the config.h
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* file. These arrays are kept static in event.o and tag.o respectively,
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2007-02-19 10:40:36 -05:00
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* because no other part of dwm needs access to them. The current layout is
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* represented by the lt pointer.
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2006-09-12 02:14:22 -04:00
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*
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2006-09-19 10:13:44 -04:00
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* To understand everything else, start reading main.c:main().
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2006-07-10 10:38:18 -04:00
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*/
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2006-08-02 10:46:59 -04:00
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#include "config.h"
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2006-08-02 10:32:05 -04:00
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#include <X11/Xlib.h>
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2006-07-12 19:30:55 -04:00
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2006-08-01 06:32:33 -04:00
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/* mask shorthands, used in event.c and client.c */
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2006-08-01 09:29:37 -04:00
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#define BUTTONMASK (ButtonPressMask | ButtonReleaseMask)
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2007-05-15 06:09:18 -04:00
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enum { BarTop, BarBot, BarOff }; /* bar position */
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2006-09-11 01:40:41 -04:00
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enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
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2007-01-14 16:37:34 -05:00
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enum { ColBorder, ColFG, ColBG, ColLast }; /* color */
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2007-05-15 06:09:18 -04:00
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enum { NetSupported, NetWMName, NetLast }; /* EWMH atoms */
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enum { WMProtocols, WMDelete, WMName, WMState, WMLast };/* default atoms */
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2006-09-11 01:40:41 -04:00
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2006-08-23 04:21:57 -04:00
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typedef struct Client Client;
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struct Client {
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2006-07-12 19:04:38 -04:00
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char name[256];
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2006-07-20 01:26:23 -04:00
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int x, y, w, h;
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2006-09-22 07:53:28 -04:00
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int rx, ry, rw, rh; /* revert geometry */
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2006-07-11 16:49:09 -04:00
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int basew, baseh, incw, inch, maxw, maxh, minw, minh;
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2007-03-01 06:33:45 -05:00
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int minax, maxax, minay, maxay;
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2007-07-28 11:18:45 -04:00
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int unmapped;
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2006-07-11 16:49:09 -04:00
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long flags;
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2007-04-19 03:24:25 -04:00
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unsigned int border, oldborder;
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2007-02-22 16:10:16 -05:00
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Bool isbanned, isfixed, ismax, isfloating;
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2006-08-03 06:12:26 -04:00
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Bool *tags;
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2006-07-10 10:38:18 -04:00
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Client *next;
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2006-07-20 10:54:20 -04:00
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Client *prev;
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2006-09-07 11:53:40 -04:00
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Client *snext;
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2006-07-17 03:12:29 -04:00
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Window win;
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2006-07-10 10:38:18 -04:00
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};
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2007-02-22 12:17:07 -05:00
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typedef struct {
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int x, y, w, h;
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unsigned long norm[ColLast];
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unsigned long sel[ColLast];
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Drawable drawable;
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GC gc;
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struct {
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int ascent;
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int descent;
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int height;
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XFontSet set;
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XFontStruct *xfont;
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} font;
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} DC; /* draw context */
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2007-06-01 06:11:25 -04:00
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extern const char *tags[]; /* all tags */
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extern char stext[256]; /* status text */
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extern int screen, sx, sy, sw, sh; /* screen geometry */
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extern int wax, way, wah, waw; /* windowarea geometry */
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extern unsigned int bh, blw, bpos; /* bar height, bar layout label width, bar position */
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extern unsigned int ntags, numlockmask; /* number of tags, numlock mask */
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extern void (*handler[LASTEvent])(XEvent *); /* event handler */
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2007-08-18 08:20:56 -04:00
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extern Atom dwmprops, wmatom[WMLast], netatom[NetLast];
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2007-08-17 15:12:55 -04:00
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extern Bool selscreen, *seltags; /* seltags is array of Bool */
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extern Client *clients, *sel, *stack; /* global client list and stack */
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extern Cursor cursor[CurLast];
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extern DC dc; /* global draw context */
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extern Display *dpy;
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extern Window root, barwin;
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2006-07-10 13:46:24 -04:00
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2006-07-10 16:16:48 -04:00
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/* client.c */
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2007-02-24 08:06:35 -05:00
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void attach(Client *c); /* attaches c to global client list */
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2007-06-04 05:50:48 -04:00
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void ban(Client *c); /* bans c */
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2007-02-24 08:06:35 -05:00
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void configure(Client *c); /* send synthetic configure event */
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void detach(Client *c); /* detaches c from global client list */
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2007-05-29 05:35:20 -04:00
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void focus(Client *c); /* focus c if visible && !NULL, or focus top visible */
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2007-05-15 06:09:18 -04:00
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void killclient(const char *arg); /* kill sel nicely */
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2007-08-19 04:57:02 -04:00
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Bool getprops(Client *c); /* gets client properties */
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void manage(Window w, XWindowAttributes *wa); /* manage new client */
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void resize(Client *c, int x, int y,
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2007-02-19 09:17:31 -05:00
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int w, int h, Bool sizehints); /* resize with given coordinates c*/
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2007-08-19 04:57:02 -04:00
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void setprops(Client *c); /* sets client properties */
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2007-06-04 05:50:48 -04:00
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void unban(Client *c); /* unbans c */
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2007-08-15 13:27:32 -04:00
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void unmanage(Client *c, long state); /* unmanage c */
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2007-05-15 06:09:18 -04:00
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void updatesizehints(Client *c); /* update the size hint variables of c */
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2007-02-24 08:06:35 -05:00
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void updatetitle(Client *c); /* update the name of c */
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2006-07-11 10:14:22 -04:00
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2007-02-20 07:46:21 -05:00
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/* draw.c */
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2007-02-24 08:06:35 -05:00
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void drawstatus(void); /* draw the bar */
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void drawtext(const char *text, unsigned long col[ColLast]); /* draw text */
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unsigned int textw(const char *text); /* return the width of text in px*/
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2007-02-20 07:46:21 -05:00
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2006-07-15 10:30:50 -04:00
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/* event.c */
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2007-02-24 08:06:35 -05:00
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void grabkeys(void); /* grab all keys defined in config.h */
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2006-07-11 15:24:10 -04:00
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2006-07-13 05:43:05 -04:00
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/* main.c */
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2007-08-19 04:40:07 -04:00
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Bool gettextprop(Window w, Atom atom,
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char *text, unsigned int size); /* return text property, UTF-8 compliant */
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2007-05-15 06:09:18 -04:00
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void updatebarpos(void); /* updates the bar position */
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2007-02-24 08:06:35 -05:00
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void quit(const char *arg); /* quit dwm nicely */
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int xerror(Display *dsply, XErrorEvent *ee); /* dwm's X error handler */
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2006-07-13 05:43:05 -04:00
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2007-08-19 04:57:02 -04:00
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/* screen.c */
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2007-08-18 07:48:05 -04:00
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void applyrules(Client *c); /* applies rules to c */
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2007-08-19 04:57:02 -04:00
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void arrange(void); /* arranges all windows depending on the layout in use */
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2007-02-24 08:06:35 -05:00
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void compileregs(void); /* initialize regexps of rules defined in config.h */
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2007-08-19 04:57:02 -04:00
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void focusnext(const char *arg); /* focuses next visible client */
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void focusprev(const char *arg); /* focuses prev visible client */
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const char *getsymbol(void); /* returns symbol of enabled layout */
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void initlayouts(void); /* initialize layout array */
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Bool isarrange(void (*func)()); /* returns True if func is the layout function in use */
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Bool isfloating(void); /* returns True if floating layout is enabled */
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2007-02-24 08:06:35 -05:00
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Bool isvisible(Client *c); /* returns True if client is visible */
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2007-08-19 04:57:02 -04:00
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void getdwmprops(void); /* gets dwm properties */
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Client *nexttiled(Client *c); /* returns tiled successor of c */
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void restack(void); /* restores z layers of all clients */
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void setlayout(const char *arg); /* sets layout, NULL means next layout */
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2007-05-14 05:54:30 -04:00
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void tag(const char *arg); /* tags sel with arg's index */
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2007-08-19 04:57:02 -04:00
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void togglebar(const char *arg); /* shows/hides the bar */
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2007-08-15 13:27:32 -04:00
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void togglefloating(const char *arg); /* toggles sel between floating/tiled state */
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2007-08-19 04:57:02 -04:00
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void togglemax(const char *arg); /* toggles maximization of floating client */
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2007-05-15 06:09:18 -04:00
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void toggletag(const char *arg); /* toggles sel tags with arg's index */
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2007-02-24 08:06:35 -05:00
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void toggleview(const char *arg); /* toggles the tag with arg's index (in)visible */
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void view(const char *arg); /* views the tag with arg's index */
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2007-02-19 08:44:05 -05:00
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/* util.c */
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2007-02-24 08:06:35 -05:00
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void *emallocz(unsigned int size); /* allocates zero-initialized memory, exits on error */
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void eprint(const char *errstr, ...); /* prints errstr and exits with 1 */
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void spawn(const char *arg); /* forks a new subprocess with arg's cmd */
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