-/* 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 an array of Bools of the same size as the
- * global tags array to indicate the tags of a client. For each client dwm
- * creates a small title window, which is resized whenever the (_NET_)WM_NAME
- * properties are updated or the client is moved/resized.
- *
- * Keys and tagging rules are organized as arrays and defined in the config.h
- * file. These arrays are kept static in event.o and tag.o respectively,
- * because no other part of dwm needs access to them. The current layout is
- * represented by the lt pointer.
- *
- * To understand everything else, start reading main.c:main().
- */
-
-#include "config.h"
-#include <X11/Xlib.h>
-
-/* mask shorthands, used in event.c and client.c */
-#define BUTTONMASK (ButtonPressMask | ButtonReleaseMask)
+/* See LICENSE file for copyright and license details. */
+/* enums */
enum { BarTop, BarBot, BarOff }; /* bar position */
enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
enum { ColBorder, ColFG, ColBG, ColLast }; /* color */
enum { NetSupported, NetWMName, NetLast }; /* EWMH atoms */
-enum { WMProtocols, WMDelete, WMState, WMLast }; /* default atoms */
+enum { WMProtocols, WMDelete, WMName, WMState, WMLast };/* default atoms */
+/* typedefs */
typedef struct Client Client;
struct Client {
char name[256];
int rx, ry, rw, rh; /* revert geometry */
int basew, baseh, incw, inch, maxw, maxh, minw, minh;
int minax, maxax, minay, maxay;
- long flags;
+ long flags;
unsigned int border, oldborder;
- Bool isbanned, isfixed, ismax, isfloating;
+ Bool isbanned, isfixed, ismax, isfloating, wasfloating;
Bool *tags;
Client *next;
Client *prev;
} DC; /* draw context */
typedef struct {
+ unsigned long mod;
+ KeySym keysym;
+ void (*func)(const char *arg);
+ const char *arg;
+} Key;
+
+typedef struct {
const char *symbol;
void (*arrange)(void);
} Layout;
-extern const char *tags[]; /* all tags */
-char stext[256]; /* status text */
-int screen, sx, sy, sw, sh; /* screen geometry */
-int wax, way, wah, waw; /* windowarea geometry */
-unsigned int bh, blw, bpos; /* bar height, bar layout label width, bar position */
-unsigned int ntags, numlockmask; /* number of tags, dynamic lock mask */
-void (*handler[LASTEvent])(XEvent *); /* event handler */
-Atom wmatom[WMLast], netatom[NetLast];
-Bool selscreen, *seltag; /* seltag is array of Bool */
-Client *clients, *sel, *stack; /* global client list and stack */
-Cursor cursor[CurLast];
-DC dc; /* global draw context */
-Display *dpy;
-Layout *lt;
-Window root, barwin;
-
-/* client.c */
-void attach(Client *c); /* attaches c to global client list */
-void configure(Client *c); /* send synthetic configure event */
-void detach(Client *c); /* detaches c from global client list */
-void focus(Client *c); /* focus c if visible && !NULL, or focus top visible */
-void killclient(const char *arg); /* kill sel nicely */
-void manage(Window w, XWindowAttributes *wa); /* manage new client */
-void resize(Client *c, int x, int y,
- int w, int h, Bool sizehints); /* resize with given coordinates c*/
-void togglefloating(const char *arg); /* toggles sel between floating/tiled state */
-void updatesizehints(Client *c); /* update the size hint variables of c */
-void updatetitle(Client *c); /* update the name of c */
-void unmanage(Client *c); /* destroy c */
-
-/* draw.c */
-void drawstatus(void); /* draw the bar */
-void drawtext(const char *text, unsigned long col[ColLast]); /* draw text */
-unsigned int textw(const char *text); /* return the width of text in px*/
+typedef struct {
+ const char *prop;
+ const char *tags;
+ Bool isfloating;
+} Rule;
-/* event.c */
-void grabkeys(void); /* grab all keys defined in config.h */
+typedef struct {
+ regex_t *propregex;
+ regex_t *tagregex;
+} Regs;
-/* layout.c */
-void floating(void); /* arranges all windows floating */
-void focusclient(const char *arg); /* focuses next(1)/previous(-1) visible client */
-void incmasterw(const char *arg); /* increments the master width with arg's index value */
-void incnmaster(const char *arg); /* increments nmaster with arg's index value */
-void initlayouts(void); /* initialize layout array */
-Client *nexttiled(Client *c); /* returns tiled successor of c */
-void restack(void); /* restores z layers of all clients */
-void setlayout(const char *arg); /* sets layout, NULL means next layout */
-void togglebar(const char *arg); /* shows/hides the bar */
-void togglemax(const char *arg); /* toggles maximization of floating client */
-void zoom(const char *arg); /* zooms the focused client to master area, arg is ignored */
+/* functions */
+void applyrules(Client *c);
+void arrange(void);
+void attach(Client *c);
+void attachstack(Client *c);
+void ban(Client *c);
+void buttonpress(XEvent *e);
+void checkotherwm(void);
+void cleanup(void);
+void compileregs(void);
+void configure(Client *c);
+void configurenotify(XEvent *e);
+void configurerequest(XEvent *e);
+void destroynotify(XEvent *e);
+void detach(Client *c);
+void detachstack(Client *c);
+void drawbar(void);
+void drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]);
+void drawtext(const char *text, unsigned long col[ColLast]);
+void *emallocz(unsigned int size);
+void enternotify(XEvent *e);
+void eprint(const char *errstr, ...);
+void expose(XEvent *e);
+void floating(void); /* default floating layout */
+void focus(Client *c);
+void focusnext(const char *arg);
+void focusprev(const char *arg);
+Client *getclient(Window w);
+unsigned long getcolor(const char *colstr);
+long getstate(Window w);
+Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
+void grabbuttons(Client *c, Bool focused);
+unsigned int idxoftag(const char *tag);
+void initfont(const char *fontstr);
+Bool isarrange(void (*func)());
+Bool isoccupied(unsigned int t);
+Bool isprotodel(Client *c);
+Bool isvisible(Client *c);
+void keypress(XEvent *e);
+void killclient(const char *arg);
+void leavenotify(XEvent *e);
+void manage(Window w, XWindowAttributes *wa);
+void mappingnotify(XEvent *e);
+void maprequest(XEvent *e);
+void movemouse(Client *c);
+Client *nexttiled(Client *c);
+void propertynotify(XEvent *e);
+void quit(const char *arg);
+void resize(Client *c, int x, int y, int w, int h, Bool sizehints);
+void resizemouse(Client *c);
+void restack(void);
+void run(void);
+void scan(void);
+void setclientstate(Client *c, long state);
+void setlayout(const char *arg);
+void setmwfact(const char *arg);
+void setup(void);
+void spawn(const char *arg);
+void tag(const char *arg);
+unsigned int textnw(const char *text, unsigned int len);
+unsigned int textw(const char *text);
+void tile(void);
+void togglebar(const char *arg);
+void togglefloating(const char *arg);
+void togglemax(const char *arg);
+void toggletag(const char *arg);
+void toggleview(const char *arg);
+void unban(Client *c);
+void unmanage(Client *c);
+void unmapnotify(XEvent *e);
+void updatebarpos(void);
+void updatesizehints(Client *c);
+void updatetitle(Client *c);
+void view(const char *arg);
+void viewprevtag(const char *arg); /* views previous selected tags */
+int xerror(Display *dpy, XErrorEvent *ee);
+int xerrordummy(Display *dsply, XErrorEvent *ee);
+int xerrorstart(Display *dsply, XErrorEvent *ee);
+void zoom(const char *arg);
-/* main.c */
-void updatebarpos(void); /* updates the bar position */
-void quit(const char *arg); /* quit dwm nicely */
-int xerror(Display *dsply, XErrorEvent *ee); /* dwm's X error handler */
+/* variables */
+char stext[256];
+double mwfact;
+int screen, sx, sy, sw, sh, wax, way, waw, wah;
+int (*xerrorxlib)(Display *, XErrorEvent *);
+unsigned int bh, bpos;
+unsigned int blw = 0;
+unsigned int ltidx = 0; /* default */
+unsigned int nlayouts = 0;
+unsigned int nrules = 0;
+unsigned int numlockmask = 0;
+void (*handler[LASTEvent]) (XEvent *) = {
+ [ButtonPress] = buttonpress,
+ [ConfigureRequest] = configurerequest,
+ [ConfigureNotify] = configurenotify,
+ [DestroyNotify] = destroynotify,
+ [EnterNotify] = enternotify,
+ [LeaveNotify] = leavenotify,
+ [Expose] = expose,
+ [KeyPress] = keypress,
+ [MappingNotify] = mappingnotify,
+ [MapRequest] = maprequest,
+ [PropertyNotify] = propertynotify,
+ [UnmapNotify] = unmapnotify
+};
+Atom wmatom[WMLast], netatom[NetLast];
+Bool otherwm, readin;
+Bool running = True;
+Bool selscreen = True;
+Client *clients = NULL;
+Client *sel = NULL;
+Client *stack = NULL;
+Cursor cursor[CurLast];
+Display *dpy;
+DC dc = {0};
+Window barwin, root;
+Regs *regs = NULL;
-/* tag.c */
-void compileregs(void); /* initialize regexps of rules defined in config.h */
-Bool isvisible(Client *c); /* returns True if client is visible */
-void settags(Client *c, Client *trans); /* sets tags of c */
-void tag(const char *arg); /* tags sel with arg's index */
-void toggletag(const char *arg); /* toggles sel tags with arg's index */
-void toggleview(const char *arg); /* toggles the tag with arg's index (in)visible */
-void view(const char *arg); /* views the tag with arg's index */
+/* configuration, allows nested code to access above variables */
+#include "config.h"
-/* util.c */
-void *emallocz(unsigned int size); /* allocates zero-initialized memory, exits on error */
-void eprint(const char *errstr, ...); /* prints errstr and exits with 1 */
-void spawn(const char *arg); /* forks a new subprocess with arg's cmd */
+/* statically define the number of tags. */
+unsigned int ntags = sizeof tags / sizeof tags[0];
+Bool seltags[sizeof tags / sizeof tags[0]] = {[0] = True};
+Bool prevtags[sizeof tags / sizeof tags[0]] = {[0] = True};
Got questions, comments, patches, etc.? Contact Jason Woofenden