You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
182 lines
7.8 KiB
182 lines
7.8 KiB
/*
|
|
* (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
|
|
* See LICENSE file for 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 mode is
|
|
* represented by the arrange() function pointer, which wether points to
|
|
* dofloat() or dotile().
|
|
*
|
|
* 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)
|
|
#define MOUSEMASK (BUTTONMASK | PointerMotionMask)
|
|
/* other stuff used in different places */
|
|
#define BORDERPX 1
|
|
#define MINW 100
|
|
#define PROTODELWIN 1
|
|
|
|
enum { NetSupported, NetWMName, NetLast }; /* EWMH atoms */
|
|
enum { WMProtocols, WMDelete, WMLast }; /* default atoms */
|
|
enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
|
|
enum { ColFG, ColBG, ColLast }; /* color */
|
|
|
|
typedef enum {
|
|
StackLeft, StackBottom, StackRight
|
|
} StackPos; /* stack position*/
|
|
|
|
typedef enum {
|
|
TopLeft, TopRight, BotLeft, BotRight
|
|
} Corner; /* window corners */
|
|
|
|
typedef union {
|
|
const char *cmd;
|
|
int i;
|
|
} Arg; /* argument type */
|
|
|
|
typedef struct {
|
|
int ascent;
|
|
int descent;
|
|
int height;
|
|
XFontSet set;
|
|
XFontStruct *xfont;
|
|
} Fnt;
|
|
|
|
typedef struct {
|
|
int x, y, w, h;
|
|
unsigned long norm[ColLast];
|
|
unsigned long sel[ColLast];
|
|
unsigned long status[ColLast];
|
|
Drawable drawable;
|
|
Fnt font;
|
|
GC gc;
|
|
} DC; /* draw context */
|
|
|
|
typedef struct Client Client;
|
|
struct Client {
|
|
char name[256];
|
|
int proto;
|
|
int x, y, w, h;
|
|
int rx, ry, rw, rh; /* revert geometry */
|
|
int tx, ty, tw, th; /* title window geometry */
|
|
int basew, baseh, incw, inch, maxw, maxh, minw, minh;
|
|
int grav;
|
|
long flags;
|
|
unsigned int border, weight;
|
|
Bool isfloat, ismax;
|
|
Bool *tags;
|
|
Client *next;
|
|
Client *prev;
|
|
Client *snext;
|
|
Window win;
|
|
Window twin;
|
|
};
|
|
|
|
extern const char *tags[]; /* all tags */
|
|
extern char stext[1024]; /* status text */
|
|
extern int bx, by, bw, bh, bmw; /* bar geometry, bar mode label width */
|
|
extern int master, screen, sx, sy, sw, sh; /* screen geometry, master dimension*/
|
|
extern unsigned int ntags, numlockmask; /* number of tags, dynamic lock mask */
|
|
extern void (*handler[LASTEvent])(XEvent *); /* event handler */
|
|
extern void (*arrange)(Arg *); /* arrange function, indicates mode */
|
|
extern Atom wmatom[WMLast], netatom[NetLast];
|
|
extern Bool running, issel, *seltag; /* seltag is array of Bool */
|
|
extern Bool isvertical; /* stack direction */
|
|
extern Client *clients, *sel, *stack; /* global client list and stack */
|
|
extern Cursor cursor[CurLast];
|
|
extern DC dc; /* global draw context */
|
|
extern Display *dpy;
|
|
extern StackPos stackpos;
|
|
extern Window root, barwin;
|
|
|
|
/* client.c */
|
|
extern void ban(Client *c); /* ban c from screen */
|
|
extern void configure(Client *c); /* send synthetic configure event */
|
|
extern void focus(Client *c); /* focus c, c may be NULL */
|
|
extern Client *getclient(Window w); /* return client of w */
|
|
extern Client *getctitle(Window w); /* return client of title window */
|
|
extern void gravitate(Client *c, Bool invert); /* gravitate c */
|
|
extern void killclient(Arg *arg); /* kill c nicely */
|
|
extern void manage(Window w, XWindowAttributes *wa); /* manage new client */
|
|
extern void resize(Client *c, Bool sizehints, Corner sticky); /* resize c*/
|
|
extern void resizetitle(Client *c); /* resizes c->twin correctly */
|
|
extern void updatesize(Client *c); /* update the size structs of c */
|
|
extern void updatetitle(Client *c); /* update the name of c */
|
|
extern void unmanage(Client *c); /* destroy c */
|
|
|
|
/* draw.c */
|
|
extern void drawall(void); /* draw all visible client titles and the bar */
|
|
extern void drawstatus(void); /* draw the bar */
|
|
extern void drawtitle(Client *c); /* draw title of c */
|
|
extern unsigned long getcolor(const char *colstr); /* return color of colstr */
|
|
extern void setfont(const char *fontstr); /* set the font for DC */
|
|
extern unsigned int textw(const char *text); /* return the width of text in px*/
|
|
|
|
/* event.c */
|
|
extern void grabkeys(void); /* grab all keys defined in config.h */
|
|
extern void procevent(void); /* process pending X events */
|
|
|
|
/* main.c */
|
|
extern int getproto(Window w); /* return protocol mask of WMProtocols property of w */
|
|
extern void quit(Arg *arg); /* quit dwm nicely */
|
|
extern void sendevent(Window w, Atom a, long value); /* send synthetic event to w */
|
|
extern int xerror(Display *dsply, XErrorEvent *ee); /* dwm's X error handler */
|
|
|
|
/* tag.c */
|
|
extern void initrregs(void); /* initialize regexps of rules defined in config.h */
|
|
extern Client *getnext(Client *c); /* returns next visible client */
|
|
extern Client *getprev(Client *c); /* returns previous visible client */
|
|
extern void settags(Client *c, Client *trans); /* sets tags of c */
|
|
extern void tag(Arg *arg); /* tags c with arg's index */
|
|
extern void toggletag(Arg *arg); /* toggles c tags with arg's index */
|
|
|
|
/* util.c */
|
|
extern void *emallocz(unsigned int size); /* allocates zero-initialized memory, exits on error */
|
|
extern void eprint(const char *errstr, ...); /* prints errstr and exits with 1 */
|
|
extern void *erealloc(void *ptr, unsigned int size); /* reallocates memory, exits on error */
|
|
extern void spawn(Arg *arg); /* forks a new subprocess with to arg's cmd */
|
|
|
|
/* view.c */
|
|
extern void detach(Client *c); /* detaches c from global client list */
|
|
extern void dofloat(Arg *arg); /* arranges all windows floating, arg is ignored */
|
|
extern void dotile(Arg *arg); /* arranges all windows, arg is ignored */
|
|
extern void focusnext(Arg *arg); /* focuses next visible client, arg is ignored */
|
|
extern void focusprev(Arg *arg); /* focuses previous visible client, arg is ignored */
|
|
extern Bool isvisible(Client *c); /* returns True if client is visible */
|
|
extern void resizecol(Arg *arg); /* resizes the master dimension with arg's index value */
|
|
extern void restack(void); /* restores z layers of all clients */
|
|
extern void togglestackdir(Arg *arg); /* toggles stack direction */
|
|
extern void togglestackpos(Arg *arg); /* toggles stack position */
|
|
extern void togglemode(Arg *arg); /* toggles global arrange function (dotile/dofloat) */
|
|
extern void toggleview(Arg *arg); /* toggles the tag with arg's index (in)visible */
|
|
extern void updatemaster(void); /* updates master dimension */
|
|
extern void view(Arg *arg); /* views the tag with arg's index */
|
|
extern void viewall(Arg *arg); /* views all tags, arg is ignored */
|
|
extern void zoom(Arg *arg); /* zooms the focused client to master area, arg is ignored */
|