update

Refresh keyboard mapping uppon MappingNotify event

.gitignore

@@ -0,0 +1,3 @@
+sowm
+sowm.o
+config.h

Makefile

@@ -1,18 +1,24 @@
-CFLAGS+= -std=c99 -Wall -Wno-deprecated-declarations -pedantic
-LDADD+= -lX11
-LDFLAGS=
-PREFIX?= /usr
-BINDIR?= $(PREFIX)/bin
-
-CC ?= gcc
+CFLAGS += -std=c99 -Wall -Wextra -pedantic -Wold-style-declaration
+CFLAGS += -Wmissing-prototypes -Wno-unused-parameter
+PREFIX ?= /usr
+BINDIR ?= $(PREFIX)/bin
+CC     ?= gcc
 
 all: sowm
 
-sowm: sowm.o
-	$(CC) $(LDFLAGS) -Os -o $@ $+ $(LDADD)
+config.h:
+	cp config.def.h config.h
+
+sowm: sowm.c sowm.h config.h Makefile
+	$(CC) -O3 $(CFLAGS) -o $@ $< -lX11 $(LDFLAGS)
 
 install: all
-	install -Dm 755 sowm $(DESTDIR)$(BINDIR)/sowm
+	install -Dm755 sowm $(DESTDIR)$(BINDIR)/sowm
+
+uninstall:
+	rm -f $(DESTDIR)$(BINDIR)/sowm
 
 clean:
 	rm -f sowm *.o
+
+.PHONY: all install uninstall clean

README.md

@@ -1,29 +1,31 @@
-# sowm
+# sowm (*~~Simple~~ Shitty Opinionated Window Manager*)
 
 <a href="https://user-images.githubusercontent.com/6799467/66687576-9747c200-ec72-11e9-947d-5b96753eab03.jpg"><img src="https://user-images.githubusercontent.com/6799467/66687576-9747c200-ec72-11e9-947d-5b96753eab03.jpg" width="43%" align="right"></a>
 
-An itsy bitsy floating window manager (*270~ sloc / 24kb compiled!*).
+An itsy bitsy floating window manager (*220~ sloc!*).
 
 - Floating only.
 - Fullscreen toggle.
 - Window centering.
 - Mix of mouse and keyboard workflow.
 - Focus with cursor.
-- Rounded corners (*[through patch](https://github.com/dylanaraps/sowm/blob/master/patches/sowm-rounded-corners.patch)*)
+- Rounded corners (*[through patch](https://github.com/dylanaraps/sowm/pull/58)*)
+- Titlebars (*[through patch](https://github.com/dylanaraps/sowm/pull/57)*)
 
 <a href="https://user-images.githubusercontent.com/6799467/66687814-8cd9f800-ec73-11e9-97b8-6ae77876bd1b.jpg"><img src="https://user-images.githubusercontent.com/6799467/66687814-8cd9f800-ec73-11e9-97b8-6ae77876bd1b.jpg" width="43%" align="right"></a>
 
 - Alt-Tab window focusing.
 - All windows die on exit.
-- No borders.
-- No bar support.
-- No ICCCM.
-- No EMWH.
+- No window borders.
+- [No ICCCM](https://web.archive.org/web/20190617214524/https://raw.githubusercontent.com/kfish/xsel/1a1c5edf0dc129055f7764c666da2dd468df6016/rant.txt).
+- No EWMH.
 - etc etc etc
 
 
 <br>
 
+Patches available here: https://github.com/dylanaraps/sowm/pulls
+
 ## Default Keybindings
 
 **Window Management**
@@ -36,8 +38,8 @@ An itsy bitsy floating window manager (*270~ sloc / 24kb compiled!*).
 | `MOD4` + `f`               | maximize toggle        |
 | `MOD4` + `c`               | center window          |
 | `MOD4` + `q`               | kill window            |
-| `MOD4` + `1-9`             | desktop swap           |
-| `MOD4` + `Shift` +`1-9`    | send window to desktop |
+| `MOD4` + `1-6`             | desktop swap           |
+| `MOD4` + `Shift` +`1-6`    | send window to desktop |
 | `MOD1` + `TAB` (*alt-tab*) | focus cycle            |
 
 **Programs**
@@ -62,22 +64,35 @@ An itsy bitsy floating window manager (*270~ sloc / 24kb compiled!*).
 
 ## Installation
 
-1) Modify `config.h` to suit your needs.
+1) Copy `config.def.h` to `config.h` and modify it to suit your needs.
 2) Run `make` to build `sowm`.
 3) Copy it to your path or run `make install`.
     - `DESTDIR` and `PREFIX` are supported.
+4) (Optional) Apply patch with `git apply patches/patch-name`
+    - In case of applying multiple patches, it has to be done **manually**.
+
+If you are using GDM, save the following to `/usr/share/xsessions/sowm.desktop`. It is still recommended to start `sowm` from `.xinitrc` or through
+[your own xinit implementation](https://github.com/dylanaraps/bin/blob/dfd9a9ff4555efb1cc966f8473339f37d13698ba/x).
+
+```
+[Desktop Entry]
+Name=sowm
+Comment=This session runs sowm as desktop manager
+Exec=sowm
+Type=Application
+```
 
 
 ## Thanks
 
-- 2bwm
-- SmallWM
-- berry
-- catwm
-- dminiwm
-- dwm
-- monsterwm
-- openbox
-- possumwm
-- swm
-- tinywm
+- [2bwm](https://github.com/venam/2bwm)
+- [SmallWM](https://github.com/adamnew123456/SmallWM)
+- [berry](https://github.com/JLErvin/berry)
+- [catwm](https://github.com/pyknite/catwm)
+- [dminiwm](https://github.com/moetunes/dminiwm)
+- [dwm](https://dwm.suckless.org)
+- [monsterwm](https://github.com/c00kiemon5ter/monsterwm)
+- [openbox](https://github.com/danakj/openbox)
+- [possum-wm](https://github.com/duckinator/possum-wm)
+- [swm](https://github.com/dcat/swm)
+- [tinywm](http://incise.org/tinywm.html)

config.def.h

@@ -15,9 +15,11 @@ const char* colors[]  = {"bud", "/home/goldie/Pictures/Wallpapers", 0};
 
 static struct key keys[] = {
     {MOD,      XK_q,   win_kill,   {0}},
-    {MOD,      XK_c,   win_center, {.i = 0}},
+    {MOD,      XK_c,   win_center, {0}},
     {MOD,      XK_f,   win_fs,     {0}},
-    {Mod1Mask, XK_Tab, win_next,   {0}},
+
+    {Mod1Mask,           XK_Tab, win_next,   {0}},
+    {Mod1Mask|ShiftMask, XK_Tab, win_prev,   {0}},
 
     {MOD, XK_d,      run, {.com = menu}},
     {MOD, XK_w,      run, {.com = colors}},

patches/sowm-rounded-corners.patch

@@ -1,119 +0,0 @@
-diff --git a/Makefile b/Makefile
-index 2549d3a..04c2222 100644
---- a/Makefile
-+++ b/Makefile
-@@ -1,5 +1,5 @@
- CFLAGS+= -std=c99 -Wall -Wno-deprecated-declarations -pedantic
--LDADD+= -lX11
-+LDADD+= -lX11 -lXext
- LDFLAGS=
- PREFIX?= /usr
- BINDIR?= $(PREFIX)/bin
-diff --git a/config.h b/config.h
-index 864c9a7..1525894 100644
---- a/config.h
-+++ b/config.h
-@@ -2,6 +2,7 @@
- #define CONFIG_H
-
- #define MOD Mod4Mask
-+#define ROUND_CORNERS 20
-
- const char* menu[]    = {"dmenu_run",      0};
- const char* term[]    = {"st",             0};
-diff --git a/sowm.c b/sowm.c
-index b9e8867..4c0b3fa 100644
---- a/sowm.c
-+++ b/sowm.c
-@@ -3,6 +3,7 @@
- #include <X11/Xlib.h>
- #include <X11/XF86keysym.h>
- #include <X11/keysym.h>
-+#include <X11/extensions/shape.h>
- #include <stdlib.h>
- #include <signal.h>
- #include <unistd.h>
-@@ -59,6 +59,7 @@ static void win_del(Window w);
- static void win_fs();
- static void win_kill();
- static void win_next();
-+static void win_round_corners(Window w, int rad);
- static void win_to_ws(const Arg arg);
- static void ws_go(const Arg arg);
- static void ws_save(int i);
-@@ -183,6 +185,8 @@ void notify_motion(XEvent *e) {
-             attr.width  + (mouse.button==3 ? xd : 0),
-             attr.height + (mouse.button==3 ? yd : 0));
-
-+        win_round_corners(mouse.subwindow, ROUND_CORNERS);
-+
-         for WIN if (c->w == mouse.subwindow) c->f = 0;
-     }
- }
-@@ -367,9 +367,58 @@ void win_fs() {
-
-         } else
-             XMoveResizeWindow(d, cur, c->a.x, c->a.y, c->a.width, c->a.height);
-+
-+        win_round_corners(cur, c->f ? 0 : ROUND_CORNERS);
-     }
- }
-
-+/*
-+    Round the corners of the desired window.
-+
-+    This isn't included in the actual source as it
-+    requires the 'shape' extension to Xorg and I'd
-+    like to keep the original source simple.
-+
-+    This is very similar to the rounded corners
-+    implementations in the 'dwm' and 'openbox'
-+    patches.
-+*/
-+void win_round_corners(Window w, int rad) {
-+    XWindowAttributes attr2;
-+    XGetWindowAttributes(d, w, &attr2);
-+
-+    int dia = 2 * rad;
-+    int ww  = attr2.width;
-+    int wh  = attr2.height;
-+
-+    if (ww < dia || wh < dia) return;
-+
-+    Pixmap mask = XCreatePixmap(d, w, ww, wh, 1);
-+
-+    if (!mask) return;
-+
-+    XGCValues xgcv;
-+    GC shape_gc = XCreateGC(d, mask, 0, &xgcv);
-+
-+    if (!shape_gc) {
-+        XFreePixmap(d, mask);
-+        return;
-+    }
-+
-+    XSetForeground(d, shape_gc, 0);
-+    XFillRectangle(d, mask, shape_gc, 0, 0, ww, wh);
-+    XSetForeground(d, shape_gc, 1);
-+    XFillArc(d, mask, shape_gc, 0, 0, dia, dia, 0, 23040);
-+    XFillArc(d, mask, shape_gc, ww-dia-1, 0, dia, dia, 0, 23040);
-+    XFillArc(d, mask, shape_gc, 0, wh-dia-1, dia, dia, 0, 23040);
-+    XFillArc(d, mask, shape_gc, ww-dia-1, wh-dia-1, dia, dia, 0, 23040);
-+    XFillRectangle(d, mask, shape_gc, rad, 0, ww-dia, wh);
-+    XFillRectangle(d, mask, shape_gc, 0, rad, ww, wh-dia);
-+    XShapeCombineMask(d, w, ShapeBounding, 0, 0, mask, ShapeSet);
-+    XFreePixmap(d, mask);
-+    XFreeGC(d, shape_gc);
-+ }
-+
- /*
-    This function simply moves the focused window to
-    the desired desktop.
-@@ -510,6 +510,7 @@ void map_request(XEvent *e) {
-                        EnterWindowMask|FocusChangeMask);
-     win_center((Arg){.i = w});
-     XMapWindow(d, w);
-+    win_round_corners(w, ROUND_CORNERS);
-     FOC(w);
-     win_add(w);
- }

sowm.c

@@ -3,439 +3,180 @@
 #include <X11/Xlib.h>
 #include <X11/XF86keysym.h>
 #include <X11/keysym.h>
+#include <X11/XKBlib.h>
 #include <stdlib.h>
 #include <signal.h>
 #include <unistd.h>
 
-/*
-   This iterates over the current desktop's
-   window list and is inserted where needed.
-*/
-#define WIN (c=list;c;c=c->next)
+#include "sowm.h"
 
-/*
-   This sets focus to the given window. It
-   could very well be a function but I feel
-   it belongs here.
-*/
-#define FOC(W) XSetInputFocus(d, W, RevertToParent, CurrentTime);
+static client       *list = {0}, *ws_list[10] = {0}, *cur;
+static int          ws = 1, sw, sh, wx, wy, numlock = 0;
+static unsigned int ww, wh;
 
-typedef union {
-    const char** com;
-    const int i;
-} Arg;
+static Display      *d;
+static XButtonEvent mouse;
+static Window       root;
 
-struct key {
-    unsigned int mod;
-    KeySym keysym;
-    void (*function)(const Arg arg);
-    const Arg arg;
-};
-
-typedef struct client client;
-struct client{
-    client *next, *prev;
-    Window w;
-    XWindowAttributes a;
-    int f;
-};
-
-typedef struct desktop desktop;
-struct desktop{client *list;};
-
-static void button_press(XEvent *e);
-static void button_release();
-static void configure_request(XEvent *e);
-static void key_grab();
-static void key_press(XEvent *e);
-static void map_request(XEvent *e);
-static void notify_destroy(XEvent *e);
-static void notify_enter(XEvent *e);
-static void notify_motion(XEvent *e);
-static void run(const Arg arg);
-static void win_add(Window w);
-static void win_center(const Arg arg);
-static void win_del(Window w);
-static void win_fs();
-static void win_kill();
-static void win_next();
-static void win_to_ws(const Arg arg);
-static void ws_go(const Arg arg);
-static void ws_save(int i);
-static void ws_sel(int i);
-
-static client  *list = {0};
-static desktop ws_list[10];
-static int     ws = 1, sh, sw, s, j;
-
-static Display           *d;
-static Window            root, cur;
-static XButtonEvent      mouse;
-static XWindowAttributes attr;
-
-#include "config.h"
-
-/*
-   The list of events to subscribe to and the paired functions
-   to call on an event.
-*/
 static void (*events[LASTEvent])(XEvent *e) = {
     [ButtonPress]      = button_press,
     [ButtonRelease]    = button_release,
     [ConfigureRequest] = configure_request,
     [KeyPress]         = key_press,
     [MapRequest]       = map_request,
+    [MappingNotify]    = mapping_notify,
     [DestroyNotify]    = notify_destroy,
     [EnterNotify]      = notify_enter,
     [MotionNotify]     = notify_motion
 };
 
-/*
-   'sowm' doesn't keep track of the currently focused window
-   and instead grabs window under the cursor when needed.
+#include "config.h"
 
-   This is a super lazy way of handling current focus, however
-   it aligns perfectly with mouse-follows-focus.
-
-   Logic below will select a real window if this function
-   returns the 'root' window.
-
-   This function returns the current window while at the same
-   time defining a global variable to contain its value. This
-   allows for stupidily simple usage.
-
-   Example: if (win_current() != root) XKillClient(d, cur);
-
-   The value can be used as function output and then
-   the same value can be used as a variable directly afterwards.
-*/
-Window win_current() {
-    XGetInputFocus(d, &cur, &j);
-    return cur;
+void win_focus(client *c) {
+    cur = c;
+    XSetInputFocus(d, cur->w, RevertToParent, CurrentTime);
 }
 
-/*
-   When a window is destroyed it is first removed from the
-   current desktop's window list and finally focus is shifted.
-
-   Focus goes to the window under the cursor if it is *not*
-   the root window. If it is the root window, focus goes to
-   the first window in the desktop.
-*/
 void notify_destroy(XEvent *e) {
     win_del(e->xdestroywindow.window);
 
-    if (list) FOC(win_current() == root ? list->w : cur);
+    if (list) win_focus(list->prev);
 }
 
-/*
-   When the mouse enters or leaves a window this function
-   handles which window shall be focused next.
-
-   The while loop firstly compresses all 'EnterNotify'
-   events down to only the latest which is an optimization
-   when focus changes very quickly (e.g a desktop focus).
-
-   There's no use in computing each and every event as we
-   only really care about the newest one.
-
-   Focus is only then changed if the mouse has entered a
-   window which is *not* the root window.
-*/
 void notify_enter(XEvent *e) {
     while(XCheckTypedEvent(d, EnterNotify, e));
 
-    if (e->xcrossing.window != root) FOC(e->xcrossing.window)
+    for win if (c->w == e->xcrossing.window) win_focus(c);
 }
 
-/*
-   When the mouse is moved and the paired modifier is
-   pressed this function handles a window move or a window
-   resize.
-
-   'mouse' is defined on a modifier+mouse press and then
-   discarded on a modifier+mouse release.
-
-   The while loop firstly compresses all 'MotionNotify'
-   events down to only the latest which is an optimization
-   when motion happens very quickly.
-
-   There's no use in computing each and every event as we
-   only really care about the newest one.
-
-   The window is then moved or resized and finally its
-   fullscreen value is reset to '0' (False).
-*/
 void notify_motion(XEvent *e) {
-    client *c;
+    if (!mouse.subwindow || cur->f) return;
 
-    if (mouse.subwindow != None) {
-        int xd = e->xbutton.x_root - mouse.x_root;
-        int yd = e->xbutton.y_root - mouse.y_root;
+    while(XCheckTypedEvent(d, MotionNotify, e));
 
-        while(XCheckTypedEvent(d, MotionNotify, e));
+    int xd = e->xbutton.x_root - mouse.x_root;
+    int yd = e->xbutton.y_root - mouse.y_root;
 
-        XMoveResizeWindow(d, mouse.subwindow,
-            attr.x      + (mouse.button==1 ? xd : 0),
-            attr.y      + (mouse.button==1 ? yd : 0),
-            attr.width  + (mouse.button==3 ? xd : 0),
-            attr.height + (mouse.button==3 ? yd : 0));
-
-        for WIN if (c->w == mouse.subwindow) c->f = 0;
-    }
+    XMoveResizeWindow(d, mouse.subwindow,
+        wx + (mouse.button == 1 ? xd : 0),
+        wy + (mouse.button == 1 ? yd : 0),
+        MAX(1, ww + (mouse.button == 3 ? xd : 0)),
+        MAX(1, wh + (mouse.button == 3 ? yd : 0)));
 }
 
-/*
-   This function initializes all key bindings defined in 'config.h'.
-   Simple stuff, nothing fancy or different from other window
-   managers happens here.
-*/
-void key_grab() {
-    KeyCode code;
-
-    for (int i=0; i < sizeof(keys)/sizeof(*keys); ++i)
-        if ((code = XKeysymToKeycode(d, keys[i].keysym)))
-            XGrabKey(d, code, keys[i].mod, root,
-                     True, GrabModeAsync, GrabModeAsync);
-}
-
-/*
-   This function fires on a key press and checks to see if there
-   is a matching and defined key binding. If there is a match the
-   function bound to the key is executed.
-
-   The deprecated 'XKeycodeToKeysym' is used as the replacement
-   requires an additional include and I want to keep them to a
-   minimum.
-
-   I highly doubt this deprecated function goes away any time soon
-   and worst case, I simply update this code. Win-win.
-*/
 void key_press(XEvent *e) {
-    KeySym keysym = XKeycodeToKeysym(d, e->xkey.keycode, 0);
+    KeySym keysym = XkbKeycodeToKeysym(d, e->xkey.keycode, 0, 0);
 
-    for (int i=0; i < sizeof(keys)/sizeof(*keys); ++i)
-        if (keys[i].keysym == keysym && keys[i].mod == e->xkey.state)
+    for (unsigned int i=0; i < sizeof(keys)/sizeof(*keys); ++i)
+        if (keys[i].keysym == keysym &&
+            mod_clean(keys[i].mod) == mod_clean(e->xkey.state))
             keys[i].function(keys[i].arg);
 }
 
-/*
-   On a mouse button press the window below the cursor's
-   attributes are stored, the window is raised and the 'mouse'
-   global is set.
-
-   Setting the 'mouse' global tells the motion handling function
-   that it should operate on the window as the user desires a move
-   or resize.
-*/
 void button_press(XEvent *e) {
-    if (e->xbutton.subwindow == None) return;
+    if (!e->xbutton.subwindow) return;
 
-    XGetWindowAttributes(d, e->xbutton.subwindow, &attr);
+    win_size(e->xbutton.subwindow, &wx, &wy, &ww, &wh);
     XRaiseWindow(d, e->xbutton.subwindow);
     mouse = e->xbutton;
 }
 
-/*
-   On a mouse button release we simply unset the 'mouse' global
-   as all of this mouse pointer nonsense is done.
-*/
-void button_release() {
-    mouse.subwindow = None;
+void button_release(XEvent *e) {
+    mouse.subwindow = 0;
 }
 
-/*
-   This function is called whenever a window is mapped to the
-   screen or moved to another desktop.
-
-   Memory is allocated for the new window and the current
-   desktop's window list is updated.
-*/
 void win_add(Window w) {
-    client *c, *t;
+    client *c;
 
-    if (!(c = (client *)calloc(1, sizeof(client))))
+    if (!(c = (client *) calloc(1, sizeof(client))))
         exit(1);
 
-    if (!list) {
-        c->next = 0;
-        c->prev = 0;
-        c->w    = w;
-        list    = c;
+    c->w = w;
+
+    if (list) {
+        list->prev->next = c;
+        c->prev          = list->prev;
+        list->prev       = c;
+        c->next          = list;
 
     } else {
-        for (t=list;t->next;t=t->next);
-
-        c->next = 0;
-        c->prev = t;
-        c->w    = w;
-        t->next = c;
+        list = c;
+        list->prev = list->next = list;
     }
 
     ws_save(ws);
 }
 
-/*
-   This function is called whenever a window is destoyed
-   or moved to another desktop.
-
-   Memory is freed and the current desktop's window list
-   is updated.
-*/
 void win_del(Window w) {
-    client *c;
+    client *x = 0;
 
-    for WIN if (c->w == w) {
-        if (!c->prev && !c->next) {
-            free(list);
-            list = 0;
-            ws_save(ws);
-            return;
-        }
+    for win if (c->w == w) x = c;
 
-        if (!c->prev) {
-            list = c->next;
-            c->next->prev = 0;
+    if (!list || !x)  return;
+    if (x->prev == x) list = 0;
+    if (list == x)    list = x->next;
+    if (x->next)      x->next->prev = x->prev;
+    if (x->prev)      x->prev->next = x->next;
 
-        } else if (!c->next) {
-            c->prev->next = 0;
-
-        } else {
-            c->prev->next = c->next;
-            c->next->prev = c->prev;
-        }
-
-        free(c);
-        ws_save(ws);
-        return;
-    }
+    free(x);
+    ws_save(ws);
 }
 
-/*
-   This function is called from a key binding to
-   close the currently focused window.
-
-   This differs from other window managers as we skip
-   the questions and go straight to the killing of
-   the window.
-
-   When I want to close a window I'm not asking, I
-   want the window closed and so it should immediately
-   close.
-
-   "Shoot first and don't ask questions later?.."
-*/
-void win_kill() {
-    if (win_current() != root) XKillClient(d, cur);
+void win_kill(const Arg arg) {
+    if (cur) XKillClient(d, cur->w);
 }
 
-/*
-   This function simply centers the window passed as
-   an argument. If the argument is '0', use the
-   currently focused window.
-*/
 void win_center(const Arg arg) {
-    Window w = arg.i ? arg.i : win_current();
+    if (!cur) return;
 
-    XGetWindowAttributes(d, w, &attr);
-
-    XMoveWindow(d, w, sw / 2 - attr.width  / 2,
-                      sh / 2 - attr.height / 2);
+    win_size(cur->w, &(int){0}, &(int){0}, &ww, &wh);
+    XMoveWindow(d, cur->w, (sw - ww) / 2, (sh - wh) / 2);
 }
 
-/*
-   This function toggles the fullscreen state for the
-   window passed as an argument.
+void win_fs(const Arg arg) {
+    if (!cur) return;
 
-   The window's data stucture holds an integer which
-   is set to '0' for False and '1' for True.
+    if ((cur->f = cur->f ? 0 : 1)) {
+        win_size(cur->w, &cur->wx, &cur->wy, &cur->ww, &cur->wh);
+        XMoveResizeWindow(d, cur->w, 0, 0, sw, sh);
 
-   When a window is set to fullscreen it is simply
-   resized to fit the screen and the prior size and
-   positioning is stored so it can be restored when
-   the window is un-fullscreened.
-*/
-void win_fs() {
-    client *c;
-
-    win_current();
-
-    for WIN if (c->w == cur) {
-        if ((c->f = c->f == 0 ? 1 : 0)) {
-            XGetWindowAttributes(d, cur, &c->a);
-            XMoveResizeWindow(d, cur, 0, 0, sw, sh);
-
-        } else
-            XMoveResizeWindow(d, cur, c->a.x, c->a.y, c->a.width, c->a.height);
+    } else {
+        XMoveResizeWindow(d, cur->w, cur->wx, cur->wy, cur->ww, cur->wh);
     }
 }
 
-/*
-   This function simply moves the focused window to
-   the desired desktop.
-
-   It firstly adds the window to the destination
-   desktop's window list and secondly deletes it
-   from the current desktop's window list.
-
-   The window is then unmapped from the screen and
-   the focus is shifted to the first window in the
-   list.
-*/
 void win_to_ws(const Arg arg) {
     int tmp = ws;
-    win_current();
 
     if (arg.i == tmp) return;
 
     ws_sel(arg.i);
-    win_add(cur);
+    win_add(cur->w);
     ws_save(arg.i);
 
     ws_sel(tmp);
-    win_del(cur);
-    XUnmapWindow(d, cur);
+    win_del(cur->w);
+    XUnmapWindow(d, cur->w);
     ws_save(tmp);
 
-    if (list) FOC(list->w);
+    if (list) win_focus(list);
 }
 
-/*
-   This function focuses the next window in the
-   current desktop's window list.
+void win_prev(const Arg arg) {
+    if (!cur) return;
 
-   If the end of the window list is reached it
-   wraps back around to the start of the list.
-
-   The newly focused window is then raised to
-   the top of the stack.
-*/
-void win_next() {
-    win_current();
-    client *c;
-
-    if (list) {
-        for WIN if (c->w == cur) break;
-
-        c = c->next ? c->next : list;
-
-        FOC(c->w);
-        XRaiseWindow(d, c->w);
-    }
+    XRaiseWindow(d, cur->prev->w);
+    win_focus(cur->prev);
 }
 
-/*
-    This function changes the focus to another desktop.
+void win_next(const Arg arg) {
+    if (!cur) return;
 
-    To make this operation invisible the destination
-    desktop's windows are mapped first and the previous
-    desktop's windows are then unmapped afterwards.
+    XRaiseWindow(d, cur->next->w);
+    win_focus(cur->next);
+}
 
-    Finally, focus is shifted to the first window on the
-    destination desktop's window list.
-*/
 void ws_go(const Arg arg) {
-    client *c;
     int tmp = ws;
 
     if (arg.i == ws) return;
@@ -443,81 +184,53 @@ void ws_go(const Arg arg) {
     ws_save(ws);
     ws_sel(arg.i);
 
-    if (list) for WIN XMapWindow(d, c->w);
+    for win XMapWindow(d, c->w);
 
     ws_sel(tmp);
 
-    if (list) for WIN XUnmapWindow(d, c->w);
+    for win XUnmapWindow(d, c->w);
 
     ws_sel(arg.i);
 
-    if (list) FOC(list->w);
+    if (list) win_focus(list); else cur = 0;
 }
 
-/*
-    This function saves the current desktop's window list.
-    Simple, nothing to see here.
-*/
-void ws_save(int i) {
-    ws_list[i].list = list;
-}
-
-/*
-    This function restores a saved desktop's window list.
-    Simple, nothing to see here.
-*/
-void ws_sel(int i) {
-    list = ws_list[i].list;
-    ws = i;
-}
-
-/*
-   This function allows a window to request a size,
-   position and other attributes.
-
-   This is required so programs like Firefox or MPV
-   are able to display and function correctly.
-*/
 void configure_request(XEvent *e) {
     XConfigureRequestEvent *ev = &e->xconfigurerequest;
-    XWindowChanges wc;
 
-    wc.x          = ev->x;
-    wc.y          = ev->y;
-    wc.width      = ev->width;
-    wc.height     = ev->height;
-    wc.sibling    = ev->above;
-    wc.stack_mode = ev->detail;
-
-    XConfigureWindow(d, ev->window, ev->value_mask, &wc);
+    XConfigureWindow(d, ev->window, ev->value_mask, &(XWindowChanges) {
+        .x          = ev->x,
+        .y          = ev->y,
+        .width      = ev->width,
+        .height     = ev->height,
+        .sibling    = ev->above,
+        .stack_mode = ev->detail
+    });
 }
 
-/*
-   This function is executed whenever a window is mapped to
-   the screen.
-
-   The window is centered, mapped to the screen, focused and
-   finally added to the current desktop's window list.
-
-   'XSelectInput' is called to subscribe to various events
-   related to the window. For example, this is used to get
-   focus-follows-cursor to work.
-*/
 void map_request(XEvent *e) {
     Window w = e->xmaprequest.window;
 
-    XSelectInput(d, w, PropertyChangeMask|StructureNotifyMask|
-                       EnterWindowMask|FocusChangeMask);
-    win_center((Arg){.i = w});
-    XMapWindow(d, w);
-    FOC(w);
+    XSelectInput(d, w, StructureNotifyMask|EnterWindowMask);
+    win_size(w, &wx, &wy, &ww, &wh);
     win_add(w);
+    cur = list->prev;
+
+    if (wx + wy == 0) win_center((Arg){0});
+
+    XMapWindow(d, w);
+    win_focus(list->prev);
+}
+
+void mapping_notify(XEvent *e) {
+    XMappingEvent *ev = &e->xmapping;
+
+    if (ev->request == MappingKeyboard || ev->request == MappingModifier) {
+        XRefreshKeyboardMapping(ev);
+        input_grab(root);
+    }
 }
 
-/*
-    This function is executed by keybindings to run the
-    specified program. Simple enough.
-*/
 void run(const Arg arg) {
     if (fork()) return;
     if (d) close(ConnectionNumber(d));
@@ -526,60 +239,51 @@ void run(const Arg arg) {
     execvp((char*)arg.com[0], (char**)arg.com);
 }
 
-/*
-    This window manager ignores all Xorg related errors.
+void input_grab(Window root) {
+    unsigned int i, j, modifiers[] = {0, LockMask, numlock, numlock|LockMask};
+    XModifierKeymap *modmap = XGetModifierMapping(d);
+    KeyCode code;
 
-    The window manager either crashes (due to Xorg or
-    itself) or it continues on its merry way.
+    for (i = 0; i < 8; i++)
+        for (int k = 0; k < modmap->max_keypermod; k++)
+            if (modmap->modifiermap[i * modmap->max_keypermod + k]
+                == XKeysymToKeycode(d, 0xff7f))
+                numlock = (1 << i);
 
-    The only errors which are handled are failed memory
-    allocations or a failure to open the display on start.
-*/
-int xerror(Display *d, XErrorEvent *e) {
-    return 0;
+    XUngrabKey(d, AnyKey, AnyModifier, root);
+
+    for (i = 0; i < sizeof(keys)/sizeof(*keys); i++)
+        if ((code = XKeysymToKeycode(d, keys[i].keysym)))
+            for (j = 0; j < sizeof(modifiers)/sizeof(*modifiers); j++)
+                XGrabKey(d, code, keys[i].mod | modifiers[j], root,
+                        True, GrabModeAsync, GrabModeAsync);
+
+    for (i = 1; i < 4; i += 2)
+        for (j = 0; j < sizeof(modifiers)/sizeof(*modifiers); j++)
+            XGrabButton(d, i, MOD | modifiers[j], root, True,
+                ButtonPressMask|ButtonReleaseMask|PointerMotionMask,
+                GrabModeAsync, GrabModeAsync, 0, 0);
+
+    XFreeModifiermap(modmap);
 }
 
-/*
-    Initialize the window manager by registering all
-    keybindings, setting some globals and starting the
-    event loop.
-
-    There's no 'XClosDisplay' or clean up as the only way
-    to exit this window manager is to kill the process.
-
-    This fires up Xorg's internal clean up which covers
-    everything allocated and executed here. It's free!
-*/
 int main(void) {
     XEvent ev;
 
-    if (!(d = XOpenDisplay(0x0))) return 0;
+    if (!(d = XOpenDisplay(0))) exit(1);
 
     signal(SIGCHLD, SIG_IGN);
     XSetErrorHandler(xerror);
 
-    s    = DefaultScreen(d);
-    root = RootWindow(d, s);
-    sw   = XDisplayWidth(d, s);
-    sh   = XDisplayHeight(d, s);
-
-    key_grab();
-
-    ws_go((Arg){.i = 1});
-
-    XSelectInput(d, root, SubstructureNotifyMask|
-        SubstructureRedirectMask|EnterWindowMask|LeaveWindowMask);
-
-    XGrabButton(d, 1, Mod4Mask, root, True,
-        ButtonPressMask|ButtonReleaseMask|PointerMotionMask,
-        GrabModeAsync, GrabModeAsync, None, None);
-
-    XGrabButton(d, 3, Mod4Mask, root, True,
-        ButtonPressMask|ButtonReleaseMask|PointerMotionMask,
-        GrabModeAsync, GrabModeAsync, None, None);
+    int s = DefaultScreen(d);
+    root  = RootWindow(d, s);
+    sw    = XDisplayWidth(d, s);
+    sh    = XDisplayHeight(d, s);
 
+    XSelectInput(d,  root, SubstructureRedirectMask);
     XDefineCursor(d, root, XCreateFontCursor(d, 68));
+    input_grab(root);
 
-    while(1 && !XNextEvent(d, &ev))
+    while (1 && !XNextEvent(d, &ev)) // 1 && will forever be here.
         if (events[ev.type]) events[ev.type](&ev);
 }

sowm.h

@@ -0,0 +1,58 @@
+#include <X11/Xlib.h>
+
+#define win        (client *t=0, *c=list; c && t!=list->prev; t=c, c=c->next)
+#define ws_save(W) ws_list[W] = list
+#define ws_sel(W)  list = ws_list[ws = W]
+#define MAX(a, b)  ((a) > (b) ? (a) : (b))
+
+#define win_size(W, gx, gy, gw, gh) \
+    XGetGeometry(d, W, &(Window){0}, gx, gy, gw, gh, \
+                 &(unsigned int){0}, &(unsigned int){0})
+
+// Taken from DWM. Many thanks. https://git.suckless.org/dwm
+#define mod_clean(mask) (mask & ~(numlock|LockMask) & \
+        (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
+
+typedef struct {
+    const char** com;
+    const int i;
+    const Window w;
+} Arg;
+
+struct key {
+    unsigned int mod;
+    KeySym keysym;
+    void (*function)(const Arg arg);
+    const Arg arg;
+};
+
+typedef struct client {
+    struct client *next, *prev;
+    int f, wx, wy;
+    unsigned int ww, wh;
+    Window w;
+} client;
+
+void button_press(XEvent *e);
+void button_release(XEvent *e);
+void configure_request(XEvent *e);
+void input_grab(Window root);
+void key_press(XEvent *e);
+void map_request(XEvent *e);
+void mapping_notify(XEvent *e);
+void notify_destroy(XEvent *e);
+void notify_enter(XEvent *e);
+void notify_motion(XEvent *e);
+void run(const Arg arg);
+void win_add(Window w);
+void win_center(const Arg arg);
+void win_del(Window w);
+void win_fs(const Arg arg);
+void win_focus(client *c);
+void win_kill(const Arg arg);
+void win_prev(const Arg arg);
+void win_next(const Arg arg);
+void win_to_ws(const Arg arg);
+void ws_go(const Arg arg);
+
+static int xerror() { return 0; }