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.
172 lines
7.5 KiB
172 lines
7.5 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) |
|
/* other stuff used in different places */ |
|
#define BORDERPX 1 |
|
#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 { |
|
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; |
|
Bool isfloat, isfixed, 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 screen, sx, sy, sw, sh; /* screen geometry */ |
|
extern int wax, way, wah, waw; /* windowarea geometry */ |
|
extern unsigned int master, ntags, numlockmask; /* master percent, number of tags, dynamic lock mask */ |
|
extern void (*handler[LASTEvent])(XEvent *); /* event handler */ |
|
extern void (*arrange)(void); /* arrange function, indicates mode */ |
|
extern Atom wmatom[WMLast], netatom[NetLast]; |
|
extern Bool running, issel, *seltag; /* seltag is array of Bool */ |
|
extern Client *clients, *sel, *stack; /* global client list and stack */ |
|
extern Cursor cursor[CurLast]; |
|
extern DC dc; /* global draw context */ |
|
extern Display *dpy; |
|
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(void); /* arranges all windows floating */ |
|
extern void dotile(void); /* arranges all windows tiled */ |
|
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 resizemaster(Arg *arg); /* resizes the master percent with arg's index value */ |
|
extern void restack(void); /* restores z layers of all clients */ |
|
extern void togglefloat(Arg *arg); /* toggles focusesd client between floating/non-floating state */ |
|
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 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 */
|
|
|