/* See LICENSE file for copyright and license details. * * Julien's 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 jdwm 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 jdwm * 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 jdwm needs access to them. The current layout is * represented by the lt pointer. * * To understand everything else, start reading main.c:main(). */ #ifndef JDWM_JDWM_H #define JDWM_JDWM_H #include "config.h" enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */ enum { NetSupported, NetWMName, NetLast }; /* EWMH atoms */ enum { WMProtocols, WMDelete, WMName, WMState, WMLast }; /* default atoms */ Bool gettextprop(Display *, Window, Atom, char *, unsigned int); /* return text property, UTF-8 compliant */ void updatebarpos(Display *, Statusbar); /* updates the bar position */ void uicb_quit(Display *, jdwm_config *, const char *); /* quit jdwm nicely */ int xerror(Display *, XErrorEvent *); /* jdwm's X error handler */ #endif