1/* See LICENSE file for copyright and license details. */
  2
  3/* enums */
  4enum { BarTop, BarBot, BarOff };			/* bar position */
  5enum { CurNormal, CurResize, CurMove, CurLast };	/* cursor */
  6enum { ColBorder, ColFG, ColBG, ColLast };		/* color */
  7enum { NetSupported, NetWMName, NetLast };		/* EWMH atoms */
  8enum { WMProtocols, WMDelete, WMName, WMState, WMLast };/* default atoms */
  9
 10/* typedefs */
 11typedef struct Client Client;
 12struct Client {
 13	char name[256];
 14	int x, y, w, h;
 15	int rx, ry, rw, rh; /* revert geometry */
 16	int basew, baseh, incw, inch, maxw, maxh, minw, minh;
 17	int minax, maxax, minay, maxay;
 18	long flags;
 19	unsigned int border, oldborder;
 20	Bool isbanned, isfixed, ismax, isfloating, wasfloating;
 21	Bool *tags;
 22	Client *next;
 23	Client *prev;
 24	Client *snext;
 25	Window win;
 26};
 27
 28typedef struct {
 29	int x, y, w, h;
 30	unsigned long norm[ColLast];
 31	unsigned long sel[ColLast];
 32	Drawable drawable;
 33	GC gc;
 34	struct {
 35		int ascent;
 36		int descent;
 37		int height;
 38		XFontSet set;
 39		XFontStruct *xfont;
 40	} font;
 41} DC; /* draw context */
 42
 43typedef struct {
 44	unsigned long mod;
 45	KeySym keysym;
 46	void (*func)(const char *arg);
 47	const char *arg;
 48} Key;
 49
 50typedef struct {
 51	const char *symbol;
 52	void (*arrange)(void);
 53} Layout;
 54
 55typedef struct {
 56	const char *prop;
 57	const char *tags;
 58	Bool isfloating;
 59} Rule;
 60
 61typedef struct {
 62	regex_t *propregex;
 63	regex_t *tagregex;
 64} Regs;
 65
 66/* functions */
 67void applyrules(Client *c);
 68void arrange(void);
 69void attach(Client *c);
 70void attachstack(Client *c);
 71void ban(Client *c);
 72void buttonpress(XEvent *e);
 73void checkotherwm(void);
 74void cleanup(void);
 75void compileregs(void);
 76void configure(Client *c);
 77void configurenotify(XEvent *e);
 78void configurerequest(XEvent *e);
 79void destroynotify(XEvent *e);
 80void detach(Client *c);
 81void detachstack(Client *c);
 82void drawbar(void);
 83void drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]);
 84void drawtext(const char *text, unsigned long col[ColLast]);
 85void *emallocz(unsigned int size);
 86void enternotify(XEvent *e);
 87void eprint(const char *errstr, ...);
 88void expose(XEvent *e);
 89void floating(void); /* default floating layout */
 90void focus(Client *c);
 91void focusnext(const char *arg);
 92void focusprev(const char *arg);
 93Client *getclient(Window w);
 94unsigned long getcolor(const char *colstr);
 95long getstate(Window w);
 96Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
 97void grabbuttons(Client *c, Bool focused);
 98unsigned int idxoftag(const char *tag);
 99void initfont(const char *fontstr);
100Bool isarrange(void (*func)());
101Bool isoccupied(unsigned int t);
102Bool isprotodel(Client *c);
103Bool isvisible(Client *c);
104void keypress(XEvent *e);
105void killclient(const char *arg);
106void leavenotify(XEvent *e);
107void manage(Window w, XWindowAttributes *wa);
108void mappingnotify(XEvent *e);
109void maprequest(XEvent *e);
110void movemouse(Client *c);
111Client *nexttiled(Client *c);
112void propertynotify(XEvent *e);
113void quit(const char *arg);
114void resize(Client *c, int x, int y, int w, int h, Bool sizehints);
115void resizemouse(Client *c);
116void restack(void);
117void run(void);
118void scan(void);
119void setclientstate(Client *c, long state);
120void setlayout(const char *arg);
121void setmwfact(const char *arg);
122void setup(void);
123void spawn(const char *arg);
124void tag(const char *arg);
125unsigned int textnw(const char *text, unsigned int len);
126unsigned int textw(const char *text);
127void tile(void);
128void togglebar(const char *arg);
129void togglefloating(const char *arg);
130void togglemax(const char *arg);
131void toggletag(const char *arg);
132void toggleview(const char *arg);
133void unban(Client *c);
134void unmanage(Client *c);
135void unmapnotify(XEvent *e);
136void updatebarpos(void);
137void updatesizehints(Client *c);
138void updatetitle(Client *c);
139void view(const char *arg);
140void viewprevtag(const char *arg);	/* views previous selected tags */
141int xerror(Display *dpy, XErrorEvent *ee);
142int xerrordummy(Display *dsply, XErrorEvent *ee);
143int xerrorstart(Display *dsply, XErrorEvent *ee);
144void zoom(const char *arg);
145
146/* variables */
147char stext[256];
148double mwfact;
149int screen, sx, sy, sw, sh, wax, way, waw, wah;
150int (*xerrorxlib)(Display *, XErrorEvent *);
151unsigned int bh, bpos;
152unsigned int blw = 0;
153unsigned int ltidx = 0; /* default */
154unsigned int nlayouts = 0;
155unsigned int nrules = 0;
156unsigned int numlockmask = 0;
157void (*handler[LASTEvent]) (XEvent *) = {
158	[ButtonPress] = buttonpress,
159	[ConfigureRequest] = configurerequest,
160	[ConfigureNotify] = configurenotify,
161	[DestroyNotify] = destroynotify,
162	[EnterNotify] = enternotify,
163	[LeaveNotify] = leavenotify,
164	[Expose] = expose,
165	[KeyPress] = keypress,
166	[MappingNotify] = mappingnotify,
167	[MapRequest] = maprequest,
168	[PropertyNotify] = propertynotify,
169	[UnmapNotify] = unmapnotify
170};
171Atom wmatom[WMLast], netatom[NetLast];
172Bool otherwm, readin;
173Bool running = True;
174Bool selscreen = True;
175Client *clients = NULL;
176Client *sel = NULL;
177Client *stack = NULL;
178Cursor cursor[CurLast];
179Display *dpy;
180DC dc = {0};
181Window barwin, root;
182Regs *regs = NULL;
183
184/* configuration, allows nested code to access above variables */
185#include "config.h"
186
187/* Statically define the number of tags. */
188unsigned int ntags = sizeof tags / sizeof tags[0];
189Bool seltags[sizeof tags / sizeof tags[0]] = {[0] = True};
190Bool prevtags[sizeof tags / sizeof tags[0]] = {[0] = True};
191