+/*
+ * Copyright (c) 2011-2012, Andy Spencer <andy753421@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <search.h>
+
+#include <X11/Xlib.h>
+#include <X11/Xproto.h>
+#include <X11/Xatom.h>
+#include <X11/keysym.h>
+#include <X11/extensions/Xinerama.h>
+
+#include "util.h"
+#include "conf.h"
+#include "sys.h"
+#include "wm.h"
+
+/* Configuration */
+static int border = 2;
+static int no_capture = 0;
+static int stack = 25;
+
+/* Internal structures */
+struct win_sys {
+ Window xid;
+ Display *dpy;
+ struct {
+ int left, right, top, bottom;
+ } strut;
+};
+
+typedef struct {
+ event_t ev;
+ int sym;
+} event_map_t;
+
+typedef enum {
+ WM_PROTO, WM_FOCUS, WM_DELETE,
+ NET_STATE, NET_FULL, NET_STRUT,
+ NET_TYPE, NET_DIALOG,
+ NATOMS
+} atom_t;
+
+typedef enum {
+ CLR_FOCUS, CLR_UNFOCUS, CLR_URGENT, NCOLORS
+} color_t;
+
+/* Global data */
+static win_t *root;
+static int running;
+static void *cache;
+static Atom atoms[NATOMS];
+static int (*xerrorxlib)(Display *, XErrorEvent *);
+static unsigned long colors[NCOLORS];
+static list_t *screens;
+static list_t *struts;
+
+/* Conversion functions */
+static event_map_t ev2sym[] = {
+ {EV_LEFT , XK_Left },
+ {EV_RIGHT , XK_Right},
+ {EV_UP , XK_Up },
+ {EV_DOWN , XK_Down },
+ {EV_HOME , XK_Home },
+ {EV_END , XK_End },
+ {EV_PAGEUP , XK_Prior},
+ {EV_PAGEDOWN, XK_Next },
+ {EV_F1 , XK_F1 },
+ {EV_F2 , XK_F2 },
+ {EV_F3 , XK_F3 },
+ {EV_F4 , XK_F4 },
+ {EV_F5 , XK_F5 },
+ {EV_F6 , XK_F6 },
+ {EV_F7 , XK_F7 },
+ {EV_F8 , XK_F8 },
+ {EV_F9 , XK_F9 },
+ {EV_F10 , XK_F10 },
+ {EV_F11 , XK_F11 },
+ {EV_F12 , XK_F12 },
+};
+
+/* - Modifiers */
+static mod_t x2mod(unsigned int state, int up)
+{
+ return (mod_t){
+ .alt = !!(state & Mod1Mask ),
+ .ctrl = !!(state & ControlMask),
+ .shift = !!(state & ShiftMask ),
+ .win = !!(state & Mod4Mask ),
+ .up = up,
+ };
+}
+
+static unsigned int mod2x(mod_t mod)
+{
+ return (mod.alt ? Mod1Mask : 0)
+ | (mod.ctrl ? ControlMask : 0)
+ | (mod.shift ? ShiftMask : 0)
+ | (mod.win ? Mod4Mask : 0);
+}
+
+/* - Keycodes */
+static event_t xk2ev(KeySym sym)
+{
+ event_map_t *em = map_getr(ev2sym,sym);
+ return em ? em->ev : sym;
+}
+
+static KeySym ev2xk(event_t ev)
+{
+ event_map_t *em = map_get(ev2sym,ev);
+ return em ? em->sym : ev;
+}
+
+static event_t xb2ev(int btn)
+{
+ return btn + EV_MOUSE0;
+}
+
+static int ev2xb(event_t ev)
+{
+ return ev - EV_MOUSE0;
+}
+
+/* - Pointers */
+static ptr_t x2ptr(XEvent *xe)
+{
+ XKeyEvent *xke = &xe->xkey;
+ return (ptr_t){xke->x, xke->y, xke->x_root, xke->y_root};
+}
+
+static Window getfocus(win_t *root, XEvent *xe)
+{
+ int revert;
+ Window focus = PointerRoot;
+ if (xe->type == KeyPress || xe->type == KeyRelease)
+ XGetInputFocus(root->sys->dpy, &focus, &revert);
+ if (focus == PointerRoot)
+ focus = xe->xkey.subwindow;
+ if (focus == None)
+ focus = xe->xkey.window;
+ return focus;
+}
+
+/* Strut functions
+ * Struts are spaces at the edges of the screen that are used by
+ * toolbars and statusbars such as dzen. */
+static int strut_copy(win_t *to, win_t *from, int scale)
+{
+ int left = from->sys->strut.left;
+ int right = from->sys->strut.right;
+ int top = from->sys->strut.top;
+ int bottom = from->sys->strut.bottom;
+ if (left == 0 && right == 0 && top == 0 && bottom == 0)
+ return 0;
+ to->x += scale*(left );
+ to->y += scale*(top );
+ to->w -= scale*(left+right);
+ to->h -= scale*(top+bottom);
+ to->sys->strut.left += scale*left;
+ to->sys->strut.right += scale*right;
+ to->sys->strut.top += scale*top;
+ to->sys->strut.bottom += scale*bottom;
+ return 1;
+}
+
+static int strut_add(win_t *root, win_t *win)
+{
+ /* Get X11 strut data */
+ Atom ret_type;
+ int ret_size;
+ unsigned long ret_items, bytes_left;
+ unsigned char *xdata;
+ int status = XGetWindowProperty(win->sys->dpy, win->sys->xid,
+ atoms[NET_STRUT], 0L, 4L, False, XA_CARDINAL,
+ &ret_type, &ret_size, &ret_items, &bytes_left, &xdata);
+ if (status != Success || ret_size != 32 || ret_items != 4)
+ return 0;
+
+ win->sys->strut.left = ((long*)xdata)[0];
+ win->sys->strut.right = ((long*)xdata)[1];
+ win->sys->strut.top = ((long*)xdata)[2];
+ win->sys->strut.bottom = ((long*)xdata)[3];
+ struts = list_insert(struts, win);
+ for (list_t *cur = screens; cur; cur = cur->next)
+ strut_copy(cur->data, win, 1);
+ return strut_copy(root, win, 1);
+}
+
+static int strut_del(win_t *root, win_t *win)
+{
+ list_t *lwin = list_find(struts, win);
+ if (lwin)
+ struts = list_remove(struts, lwin, 0);
+ for (list_t *cur = screens; cur; cur = cur->next)
+ strut_copy(cur->data, win, -1);
+ return strut_copy(root, win, -1);
+}
+
+/* Window functions */
+static Atom win_prop(win_t *win, atom_t prop);
+static win_t *win_find(Display *dpy, Window xid, int create);
+
+static win_t *win_new(Display *dpy, Window xid)
+{
+ Window trans;
+ XWindowAttributes attr;
+ if (XGetWindowAttributes(dpy, xid, &attr))
+ if (attr.override_redirect)
+ return NULL;
+
+ win_t *win = new0(win_t);
+ win->x = attr.x;
+ win->y = attr.y;
+ win->w = attr.width;
+ win->h = attr.height;
+ win->sys = new0(win_sys_t);
+ win->sys->dpy = dpy;
+ win->sys->xid = xid;
+
+ if (root) {
+ if (strut_add(root, win))
+ win->type = TYPE_TOOLBAR;
+
+ if (win_prop(win, NET_TYPE) == atoms[NET_DIALOG])
+ win->type = TYPE_DIALOG;
+
+ if (win_prop(win, NET_STATE) == atoms[NET_FULL])
+ win->state = ST_FULL;
+
+ if (XGetTransientForHint(dpy, xid, &trans))
+ win->parent = win_find(dpy, trans, 0);
+
+ XSelectInput(dpy, xid, PropertyChangeMask);
+ }
+
+ printf("win_new: win=%p x11=(%p,%d) state=%x pos=(%d,%d %dx%d) type=%s\n",
+ win, dpy, (int)xid, win->state,
+ win->x, win->y, win->w, win->h,
+ win->type == TYPE_NORMAL ? "normal" :
+ win->type == TYPE_DIALOG ? "dialog" :
+ win->type == TYPE_TOOLBAR ? "toolbar" : "unknown");
+
+ if (root)
+ wm_insert(win);
+
+ return win;
+}
+
+static int win_cmp(const void *_a, const void *_b)
+{
+ const win_t *a = _a, *b = _b;
+ if (a->sys->dpy < b->sys->dpy) return -1;
+ if (a->sys->dpy > b->sys->dpy) return 1;
+ if (a->sys->xid < b->sys->xid) return -1;
+ if (a->sys->xid > b->sys->xid) return 1;
+ return 0;
+}
+
+static win_t *win_find(Display *dpy, Window xid, int create)
+{
+ if (!dpy || !xid)
+ return NULL;
+ //printf("win_find: %p, %d\n", dpy, (int)xid);
+ win_sys_t sys = {.dpy=dpy, .xid=xid};
+ win_t tmp = {.sys=&sys};
+ win_t **old = NULL, *new = NULL;
+ if ((old = tfind(&tmp, &cache, win_cmp)))
+ return *old;
+ if (create && (new = win_new(dpy,xid)))
+ tsearch(new, &cache, win_cmp);
+ return new;
+}
+
+static void win_free(win_t *win)
+{
+ free(win->sys);
+ free(win);
+}
+
+static void win_remove(win_t *win)
+{
+ if (win != root) {
+ strut_del(root, win);
+ wm_remove(win);
+ }
+ tdelete(win, &cache, win_cmp);
+ win_free(win);
+}
+
+static int win_viewable(Display *dpy, Window xid)
+{
+ XWindowAttributes attr;
+ if (XGetWindowAttributes(dpy, xid, &attr))
+ return attr.map_state == IsViewable;
+ else
+ return True;
+}
+
+static int win_msg(win_t *win, atom_t msg)
+{
+ int n, found = 0;
+ Atom *protos;
+ if (!XGetWMProtocols(win->sys->dpy, win->sys->xid, &protos, &n))
+ return 0;
+
+ while (!found && n--)
+ found = protos[n] == atoms[msg];
+ XFree(protos);
+ if (!found)
+ return 0;
+
+ XSendEvent(win->sys->dpy, win->sys->xid, False, NoEventMask, &(XEvent){
+ .type = ClientMessage,
+ .xclient.window = win->sys->xid,
+ .xclient.message_type = atoms[WM_PROTO],
+ .xclient.format = 32,
+ .xclient.data.l[0] = atoms[msg],
+ .xclient.data.l[1] = CurrentTime,
+ });
+ return 1;
+}
+
+static Atom win_prop(win_t *win, atom_t prop)
+{
+ int format;
+ unsigned long nitems, bytes;
+ unsigned char *buf = NULL;
+ Atom atom, type = XA_ATOM;
+ if (XGetWindowProperty(win->sys->dpy, win->sys->xid, atoms[prop],
+ 0L, sizeof(Atom), False, type, &type, &format, &nitems, &bytes, &buf) || !buf)
+ return 0;
+ atom = *(Atom *)buf;
+ XFree(buf);
+ return atom;
+}
+
+/* Drawing functions */
+static unsigned long get_color(Display *dpy, const char *name)
+{
+ XColor color;
+ int screen = DefaultScreen(dpy);
+ Colormap cmap = DefaultColormap(dpy, screen);
+ XAllocNamedColor(dpy, cmap, name, &color, &color);
+ return color.pixel;
+}
+
+/* Callbacks */
+static void process_event(int type, XEvent *xe, win_t *root)
+{
+ Display *dpy = root->sys->dpy;
+ win_t *win = NULL;
+ //printf("event: %d\n", type);
+
+ /* Common data for all these events ... */
+ ptr_t ptr = {}; mod_t mod = {};
+ if (type == KeyPress || type == KeyRelease ||
+ type == ButtonPress || type == ButtonRelease ||
+ type == MotionNotify) {
+ Window xid = getfocus(root, xe);
+ if (!(win = win_find(dpy,xid,0)))
+ return;
+ //printf("button-press %p\n", win);
+ ptr = x2ptr(xe);
+ mod = x2mod(xe->xkey.state, type==KeyRelease||type==ButtonRelease);
+ }
+
+ /* Split based on event */
+ if (type == KeyPress) {
+ while (XCheckTypedEvent(dpy, KeyPress, xe));
+ KeySym sym = XLookupKeysym(&xe->xkey, 0);
+ //printf("got xe %c %hhx\n", xk2ev(sym), mod2int(mod));
+ wm_handle_event(win, xk2ev(sym), mod, ptr);
+ }
+ else if (type == KeyRelease) {
+ //printf("release: %lx\n", xe->xkey.window);
+ }
+ else if (type == ButtonPress) {
+ if (wm_handle_event(win, xb2ev(xe->xbutton.button), mod, ptr)) {
+ //printf("grab pointer\n");
+ XGrabPointer(dpy, xe->xbutton.root, True, PointerMotionMask|ButtonReleaseMask,
+ GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
+ } else {
+ //printf("allow events\n");
+ XAllowEvents(win->sys->dpy, ReplayPointer, xe->xbutton.time);
+ }
+ }
+ else if (type == ButtonRelease) {
+ XUngrabPointer(dpy, CurrentTime);
+ wm_handle_event(win, xb2ev(xe->xbutton.button), mod, ptr);
+ }
+ else if (type == MotionNotify) {
+ while (XCheckTypedEvent(dpy, MotionNotify, xe));
+ wm_handle_ptr(win, ptr);
+ }
+ else if (type == EnterNotify || type == LeaveNotify) {
+ printf("%s: %lx\n", type==EnterNotify?"enter":"leave",
+ xe->xcrossing.window);
+ event_t ev = type == EnterNotify ? EV_ENTER : EV_LEAVE;
+ if ((win = win_find(dpy,xe->xcrossing.window,0)))
+ wm_handle_event(win, ev, MOD(), PTR());
+ }
+ else if (type == FocusIn || type == FocusOut) {
+ //printf("focus: %lx\n", xe->xfocus.window);
+ event_t ev = type == FocusIn ? EV_FOCUS : EV_UNFOCUS;
+ if ((win = win_find(dpy,xe->xfocus.window,0)))
+ wm_handle_event(win, ev, MOD(), PTR());
+ }
+ else if (type == ConfigureNotify) {
+ //printf("configure: %lx\n", xe->xconfigure.window);
+ }
+ else if (type == MapNotify) {
+ printf("map: %lx\n", xe->xmap.window);
+ }
+ else if (type == UnmapNotify) {
+ if ((win = win_find(dpy,xe->xunmap.window,0)) &&
+ win->state != ST_HIDE) {
+ printf("unmap: %lx\n", xe->xunmap.window);
+ wm_handle_state(win, win->state, ST_HIDE);
+ win->state = ST_HIDE;
+ }
+ }
+ else if (type == DestroyNotify) {
+ printf("destroy: %lx\n", xe->xdestroywindow.window);
+ if ((win = win_find(dpy,xe->xdestroywindow.window,0)))
+ win_remove(win);
+ }
+ else if (type == ConfigureRequest) {
+ XConfigureRequestEvent *cre = &xe->xconfigurerequest;
+ printf("configure_req: %lx - (0x%lx) %dx%d @ %d,%d\n",
+ cre->window, cre->value_mask,
+ cre->height, cre->width, cre->x, cre->y);
+ if ((win = win_find(dpy,xe->xconfigurerequest.window,1))) {
+ XSendEvent(dpy, cre->window, False, StructureNotifyMask, &(XEvent){
+ .xconfigure.type = ConfigureNotify,
+ .xconfigure.display = win->sys->dpy,
+ .xconfigure.event = win->sys->xid,
+ .xconfigure.window = win->sys->xid,
+ .xconfigure.x = win->x,
+ .xconfigure.y = win->y,
+ .xconfigure.width = win->w,
+ .xconfigure.height = win->h,
+ .xconfigure.border_width = border,
+ });
+ XSync(win->sys->dpy, False);
+ }
+ }
+ else if (type == MapRequest) {
+ printf("map_req: %lx\n", xe->xmaprequest.window);
+ win = win_find(dpy,xe->xmaprequest.window,1);
+ // fixme, for hide -> max, etc
+ if (win->state == ST_HIDE)
+ win->state = ST_SHOW;
+ sys_show(win, win->state);
+ }
+ else if (type == ClientMessage) {
+ XClientMessageEvent *cme = &xe->xclient;
+ printf("client_msg: %lx - %ld %ld,%ld,%ld,%ld,%ld\n",
+ cme->window, cme->message_type,
+ cme->data.l[0], cme->data.l[1], cme->data.l[2],
+ cme->data.l[3], cme->data.l[4]);
+ if ((win = win_find(dpy,cme->window,0)) &&
+ (cme->message_type == atoms[NET_STATE]) &&
+ (cme->data.l[1] == atoms[NET_FULL] ||
+ cme->data.l[2] == atoms[NET_FULL])) {
+ state_t next = (cme->data.l[0] == 1 || /* _NET_WM_STATE_ADD */
+ (cme->data.l[0] == 2 && /* _NET_WM_STATE_TOGGLE */
+ win->state != ST_FULL)) ? ST_FULL : ST_SHOW;
+ printf("client_msg: fullscreen %x -> %x", win->state, next);
+ wm_handle_state(win, win->state, next);
+ sys_show(win, next);
+ }
+ }
+ else if (type == PropertyNotify) {
+ printf("prop: %lx - %d\n", xe->xproperty.window, xe->xproperty.state);
+ }
+ else {
+ printf("unknown event: %d\n", type);
+ }
+}
+
+static int xerror(Display *dpy, XErrorEvent *err)
+{
+ if (err->error_code == BadWindow ||
+ (err->request_code == X_SetInputFocus && err->error_code == BadMatch ) ||
+ (err->request_code == X_PolyText8 && err->error_code == BadDrawable) ||
+ (err->request_code == X_PolyFillRectangle && err->error_code == BadDrawable) ||
+ (err->request_code == X_PolySegment && err->error_code == BadDrawable) ||
+ (err->request_code == X_ConfigureWindow && err->error_code == BadMatch ) ||
+ (err->request_code == X_GrabButton && err->error_code == BadAccess ) ||
+ (err->request_code == X_GrabKey && err->error_code == BadAccess ) ||
+ (err->request_code == X_CopyArea && err->error_code == BadDrawable))
+ return 0;
+ if (err->request_code == X_ChangeWindowAttributes && err->error_code == BadAccess)
+ error("Another window manager is already running");
+ return xerrorxlib(dpy, err);
+}
+
+static int xnoerror(Display *dpy, XErrorEvent *err)
+{
+ return 0;
+}
+
+
+/********************
+ * System functions *
+ ********************/
+void sys_move(win_t *win, int x, int y, int w, int h)
+{
+ //printf("sys_move: %p - %d,%d %dx%d\n", win, x, y, w, h);
+ int b = 2*border;
+ win->x = x; win->y = y;
+ win->w = MAX(w,1+b); win->h = MAX(h,1+b);
+ w = MAX(w-b,1); h = MAX(h-b,1);
+ XMoveResizeWindow(win->sys->dpy, win->sys->xid, x, y, w, h);
+
+ /* Flush events, so moving window doesn't cause re-focus
+ * There's probably a better way to do this */
+ XEvent xe;
+ XSync(win->sys->dpy, False);
+ while (XCheckMaskEvent(win->sys->dpy, EnterWindowMask|LeaveWindowMask, &xe))
+ printf("Skipping enter/leave event\n");
+}
+
+void sys_raise(win_t *win)
+{
+ //printf("sys_raise: %p\n", win);
+ XRaiseWindow(win->sys->dpy, win->sys->xid);
+ for (list_t *cur = struts; cur; cur = cur->next)
+ XRaiseWindow(((win_t*)cur->data)->sys->dpy,
+ ((win_t*)cur->data)->sys->xid);
+}
+
+void sys_focus(win_t *win)
+{
+ //printf("sys_focus: %p\n", win);
+
+ /* Set actual focus */
+ XSetInputFocus(win->sys->dpy, win->sys->xid,
+ RevertToPointerRoot, CurrentTime);
+ win_msg(win, WM_FOCUS);
+
+ /* Set border on focused window */
+ static win_t *last = NULL;
+ if (last)
+ XSetWindowBorder(last->sys->dpy, last->sys->xid, colors[CLR_UNFOCUS]);
+ XSync(win->sys->dpy, False);
+ XSetWindowBorder(win->sys->dpy, win->sys->xid, colors[CLR_FOCUS]);
+ last = win;
+}
+
+void sys_show(win_t *win, state_t state)
+{
+ switch (state) {
+ case ST_HIDE:
+ printf("sys_show: hide %p\n", win);
+ XUnmapWindow(win->sys->dpy, win->sys->xid);
+ break;
+ case ST_SHOW:
+ printf("sys_show: show %p\n", win);
+ if (win->state == ST_FULL)
+ sys_move(win, win->x, win->y, win->w, win->h);
+ XSetWindowBorderWidth(win->sys->dpy, win->sys->xid, border);
+ XMapWindow(win->sys->dpy, win->sys->xid);
+ XSync(win->sys->dpy, False);
+ break;
+ case ST_MAX:
+ printf("sys_show: max %p\n", win);
+ XMapWindow(win->sys->dpy, win->sys->xid);
+ break;
+ case ST_FULL:
+ printf("sys_show: full %p\n", win);
+ win_t *screen = NULL;
+ for (list_t *cur = screens; cur; cur = cur->next) {
+ screen = cur->data;
+ if (win->x >= screen->x && win->x <= screen->x+screen->w &&
+ win->y >= screen->y && win->y <= screen->y+screen->h)
+ break;
+ }
+ XSetWindowBorderWidth(win->sys->dpy, win->sys->xid, 0);
+ XMapWindow(win->sys->dpy, win->sys->xid);
+ XConfigureWindow(win->sys->dpy, win->sys->xid,
+ CWX|CWY|CWWidth|CWHeight, &(XWindowChanges) {
+ .x = win->x,
+ .y = win->y,
+ .width = win->w,
+ .height = win->h,
+ });
+ XMoveResizeWindow(win->sys->dpy, win->sys->xid,
+ screen->x - screen->sys->strut.left,
+ screen->y - screen->sys->strut.top,
+ screen->w + screen->sys->strut.left + screen->sys->strut.right,
+ screen->h + screen->sys->strut.top + screen->sys->strut.bottom);
+ XRaiseWindow(win->sys->dpy, win->sys->xid);
+ break;
+ case ST_SHADE:
+ printf("sys_show: shade %p\n", win);
+ XConfigureWindow(win->sys->dpy, win->sys->xid, CWHeight,
+ &(XWindowChanges){ .height = stack });
+ XMapWindow(win->sys->dpy, win->sys->xid);
+ break;
+ case ST_ICON:
+ printf("sys_show: icon %p\n", win);
+ break;
+ case ST_CLOSE:
+ printf("sys_show: close %p\n", win);
+ if (!win_msg(win, WM_DELETE)) {
+ XGrabServer(win->sys->dpy);
+ XSetErrorHandler(xnoerror);
+ XSetCloseDownMode(win->sys->dpy, DestroyAll);
+ XKillClient(win->sys->dpy, win->sys->xid);
+ XSync(win->sys->dpy, False);
+ XSetErrorHandler(xerror);
+ XUngrabServer(win->sys->dpy);
+ }
+ XDestroyWindow(win->sys->dpy, win->sys->xid);
+ break;
+ }
+ win->state = state;
+}
+
+void sys_watch(win_t *win, event_t ev, mod_t mod)
+{
+ //printf("sys_watch: %p - %x %hhx\n", win, ev, mod);
+ XWindowAttributes attr;
+ XGetWindowAttributes(win->sys->dpy, win->sys->xid, &attr);
+ long mask = attr.your_event_mask;
+ if (EV_MOUSE0 <= ev && ev <= EV_MOUSE7)
+ XGrabButton(win->sys->dpy, ev2xb(ev), mod2x(mod), win->sys->xid, False,
+ mod.up ? ButtonReleaseMask : ButtonPressMask,
+ GrabModeSync, GrabModeAsync, None, None);
+ else if (ev == EV_ENTER)
+ XSelectInput(win->sys->dpy, win->sys->xid, EnterWindowMask|mask);
+ else if (ev == EV_LEAVE)
+ XSelectInput(win->sys->dpy, win->sys->xid, LeaveWindowMask|mask);
+ else if (ev == EV_FOCUS || ev == EV_UNFOCUS)
+ XSelectInput(win->sys->dpy, win->sys->xid, FocusChangeMask|mask);
+ else
+ XGrabKey(win->sys->dpy, XKeysymToKeycode(win->sys->dpy, ev2xk(ev)),
+ mod2x(mod), win->sys->xid, True, GrabModeAsync, GrabModeAsync);
+}
+
+void sys_unwatch(win_t *win, event_t ev, mod_t mod)
+{
+ if (EV_MOUSE0 <= ev && ev <= EV_MOUSE7)
+ XUngrabButton(win->sys->dpy, ev2xb(ev), mod2x(mod), win->sys->xid);
+}
+
+list_t *sys_info(win_t *win)
+{
+ /* Use global copy of screens so we can add struts */
+ if (screens == NULL) {
+ /* Add Xinerama screens */
+ int n = 0;
+ XineramaScreenInfo *info = NULL;
+ if (XineramaIsActive(win->sys->dpy))
+ info = XineramaQueryScreens(win->sys->dpy, &n);
+ for (int i = 0; i < n; i++) {
+ win_t *screen = new0(win_t);
+ screen->x = info[i].x_org;
+ screen->y = info[i].y_org;
+ screen->w = info[i].width;
+ screen->h = info[i].height;
+ screen->sys = new0(win_sys_t);
+ screens = list_append(screens, screen);
+ }
+ }
+ if (screens == NULL) {
+ /* No xinerama support */
+ win_t *screen = new0(win_t);
+ *screen = *win;
+ screens = list_insert(NULL, screen);
+ }
+ return screens;
+}
+
+win_t *sys_init(void)
+{
+ Display *dpy;
+ Window xid;
+
+ /* Load configuration */
+ stack = conf_get_int("main.stack", stack);
+ border = conf_get_int("main.border", border);
+ no_capture = conf_get_int("main.no-capture", no_capture);
+
+ /* Open the display */
+ if (!(dpy = XOpenDisplay(NULL)))
+ error("Unable to get display");
+ if (!(xid = DefaultRootWindow(dpy)))
+ error("Unable to get root window");
+
+ /* Setup X11 data */
+ atoms[WM_PROTO] = XInternAtom(dpy, "WM_PROTOCOLS", False);
+ atoms[WM_FOCUS] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
+ atoms[WM_DELETE] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
+ atoms[NET_STATE] = XInternAtom(dpy, "_NET_WM_STATE", False);
+ atoms[NET_FULL] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
+ atoms[NET_STRUT] = XInternAtom(dpy, "_NET_WM_STRUT", False);
+ atoms[NET_TYPE] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
+ atoms[NET_DIALOG] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
+
+ colors[CLR_FOCUS] = get_color(dpy, "#a0a0ff");
+ colors[CLR_UNFOCUS] = get_color(dpy, "#101066");
+ colors[CLR_URGENT] = get_color(dpy, "#ff0000");
+ //printf("colors = #%06lx #%06lx #%06lx\n", colors[0], colors[1], colors[2]);
+
+ /* Select window management events */
+ XSelectInput(dpy, xid, SubstructureRedirectMask|SubstructureNotifyMask);
+ xerrorxlib = XSetErrorHandler(xerror);
+
+ return root = win_find(dpy, xid, 1);
+}
+
+void sys_run(win_t *root)
+{
+ /* Add each initial window */
+ if (!no_capture) {
+ unsigned int nkids;
+ Window par, xid, *kids = NULL;
+ if (XQueryTree(root->sys->dpy, root->sys->xid,
+ &par, &xid, &kids, &nkids)) {
+ for(int i = 0; i < nkids; i++)
+ if (win_viewable(root->sys->dpy, kids[i]))
+ win_find(root->sys->dpy, kids[i], 1);
+ XFree(kids);
+ }
+ }
+
+ /* Main loop */
+ running = 1;
+ while (running)
+ {
+ XEvent xe;
+ XNextEvent(root->sys->dpy, &xe);
+ process_event(xe.type, &xe, root);
+ }
+}
+
+void sys_exit(void)
+{
+ running = 0;
+}
+
+void sys_free(win_t *root)
+{
+ XCloseDisplay(root->sys->dpy);
+ while (screens) {
+ win_free(screens->data);
+ screens = list_remove(screens, screens, 0);
+ }
+ tdestroy(cache, (void(*)(void*))win_free);
+}