initial checkin

13 files changed, 1140 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..2453f96
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,19 @@
+CC = gcc
+
+SRC = main.o events.o manage.o list.o bar.o
+
+LIBS = -lX11
+
+LDFLAGS = -L/usr/X11R6/lib
+CFLAGS = -g -Wall -I/usr/X11R6/include 
+
+DEBUG = -DDEBUG
+
+ratpoison: $(SRC)
+	gcc $(SRC) -o $@ $(CFLAGS) $(LDFLAGS) $(LIBS) 
+
+%.o : %.c ratpoison.h conf.h
+	$(CC) -c $(CFLAGS) $(DEBUG) $< -o $@
+
+clean :
+	rm -f *.o ratpoison
diff --git a/bar.c b/bar.c
new file mode 100644
index 0000000..d5ac700
--- /dev/null
+++ b/bar.c
@@ -0,0 +1,117 @@
+/* Functionality for a bar across the bottom of the screen listing the
+   windows currently managed. */
+
+#include <X11/X.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "ratpoison.h"
+
+int
+hide_bar (screen_info *s)
+{
+  if (s->bar_is_raised)
+    {
+      s->bar_is_raised = 0;
+      XUnmapWindow (dpy, s->bar_window);
+      return 1;
+    }
+
+  return 0;
+}
+
+int
+show_bar (screen_info *s)
+{
+  if (!s->bar_is_raised)
+    {
+      s->bar_is_raised = 1;
+      XMapWindow (dpy, s->bar_window);
+      update_window_names (s);
+  
+      /* Set an alarm to auto-hide the bar BAR_TIMEOUT seconds later */
+      alarm (BAR_TIMEOUT);
+      return 1;
+    }
+
+  return 0;
+}
+
+/* Toggle the display of the program bar */
+void
+toggle_bar (screen_info *s)
+{
+  if (!hide_bar (s)) show_bar (s);
+}
+
+static int
+calc_bar_width (XFontStruct *font)
+{
+  int size = 1;
+  rp_window *cur;
+
+  for (cur = rp_window_head; cur; cur = cur->next)
+    {
+      if (cur->state == STATE_UNMAPPED) continue;
+      size += 10 + XTextWidth (font, cur->name, strlen (cur->name));
+    }
+
+  return size;
+}
+
+static int
+bar_x (screen_info *s, int width)
+{
+  if (BAR_LOCATION >= 2) return s->root_attr.width - width;
+  else return 0;
+}
+
+static int
+bar_y (screen_info *s)
+{
+  if (BAR_LOCATION % 2) return 0;
+  else return s->root_attr.height - (FONT_HEIGHT (s->font) + BAR_PADDING * 2) - 2;
+}
+
+void
+update_window_names (screen_info *s)
+{
+  int width = calc_bar_width (s->font);
+  rp_window *cur;
+  int cur_x = 5;
+
+  if (!s->bar_is_raised) return;
+
+  XMoveResizeWindow (dpy, s->bar_window, 
+		     bar_x (s, width), bar_y (s),
+		     width,
+		     (FONT_HEIGHT (s->font) + BAR_PADDING * 2));
+  XClearWindow (dpy, s->bar_window);
+  XRaiseWindow (dpy, s->bar_window);
+
+  if (rp_window_head == NULL) return;
+  for (cur = rp_window_head; cur; cur = cur->next)
+    {
+      if (cur->state == STATE_UNMAPPED) continue;
+
+      if ( rp_current_window == cur) 
+	{
+	  XDrawString (dpy, s->bar_window, s->bold_gc, cur_x, 
+		       BAR_PADDING + s->font->max_bounds.ascent, cur->name, strlen (cur->name));
+	}
+      else
+	{
+	  XDrawString (dpy, s->bar_window, s->normal_gc, cur_x, 
+		       BAR_PADDING + s->font->max_bounds.ascent, cur->name, strlen (cur->name));
+	}
+      cur_x += 10 + XTextWidth (s->font, cur->name, strlen (cur->name));
+    }
+}
+
+
+
diff --git a/bar.h b/bar.h
new file mode 100644
index 0000000..4509b0f
--- /dev/null
+++ b/bar.h
@@ -0,0 +1,10 @@
+/* functions for managing the program bar */
+
+#ifndef _BAR_H
+#define _BAR_H
+
+void update_window_names (screen_info *s);
+void toggle_bar (screen_info *s);
+int show_bar (screen_info *s);
+int hide_bar (screen_info *s);
+#endif _BAR_H
diff --git a/conf.h b/conf.h
new file mode 100644
index 0000000..b12953f
--- /dev/null
+++ b/conf.h
@@ -0,0 +1,23 @@
+/* Config file for ratpoison. Edit these values and recompile. */
+
+#define KEY_PREFIX      't'
+#define MODIFIER_PREFIX ControlMask
+
+#define KEY_XTERM       'c'
+#define KEY_EMACS       'e'
+#define KEY_PREVWINDOW  'p'
+#define KEY_NEXTWINDOW  'n'	
+#define KEY_LASTWINDOW  't'	/* key to toggle between the current window and the last visitted one */
+#define KEY_TOGGLEBAR   'w'	/* key to toggle the display of the program bar */
+
+#define TERM_PROG       "xterm"	/* command to boot an xterm */
+#define EMACS_PROG      "emacs"	/* command to boot emacs */
+
+#define BAR_FG_COLOR    "Gray60"
+#define BAR_BG_COLOR    "Lightgreen"
+#define BAR_BOLD_COLOR  "Black" /* To indicate the current window */
+
+#define FONT_NAME       "fixed"	/* The font you wish to use */
+#define BAR_PADDING     3	/* The amount of padding on the top and bottom of the program bar  */
+#define BAR_LOCATION    3	/* 0=bottom-left 1=top-left 2=bottom-right 3=top-right */
+#define BAR_TIMEOUT     5	/* Number of seconds before the progam bar autohides 0=don't autohide */
diff --git a/data.h b/data.h
new file mode 100644
index 0000000..05cbbb2
--- /dev/null
+++ b/data.h
@@ -0,0 +1,52 @@
+/* our datatypes and global variables */
+
+#ifndef _DATA_H
+#define _DATA_H
+
+#include <X11/X.h>
+#include <X11/Xlib.h>
+
+#define FONT_HEIGHT(f) ((f)->max_bounds.ascent + (f)->max_bounds.descent)
+
+#define STATE_UNMAPPED 0
+#define STATE_MAPPED   1
+
+
+typedef struct rp_window rp_window;
+typedef struct screen_info screen_info;
+
+struct rp_window
+{
+  screen_info *scr;
+  Window w;
+  char *name;
+  int state;
+  int last_access;		
+  rp_window *next, *prev;  
+};
+
+struct screen_info
+{
+  GC normal_gc;
+  GC bold_gc;
+  XFontStruct *font;		/* The font we want to use. */
+  XWindowAttributes root_attr;
+  Window root, bar_window, key_window;
+  int bar_is_raised;
+  int screen_num;		/* Our screen number as dictated my X */
+  Colormap def_cmap;
+};
+
+extern  rp_window *rp_window_head, *rp_window_tail;
+extern  rp_window *rp_current_window;
+extern screen_info *screens;
+extern int num_screens;
+
+extern Display *dpy;
+extern Atom rp_restart;
+
+/* Set to 1 to indicate that the WM should exit at it's earliest
+   convenience. */
+extern int exit_signal;
+
+#endif /* _DATA_H */
diff --git a/events.c b/events.c
new file mode 100644
index 0000000..f148314
--- /dev/null
+++ b/events.c
@@ -0,0 +1,354 @@
+#include <X11/X.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/Xatom.h>
+#include <X11/keysymdef.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/wait.h>
+
+#include "ratpoison.h"
+
+extern Display *dpy;
+
+void
+spawn(char *prog)
+{
+  /*
+   * ugly dance to avoid leaving zombies.  Could use SIGCHLD,
+   * but it's not very portable.
+   */
+  if (fork() == 0) {
+    if (fork() == 0) {
+      putenv(DisplayString(dpy));
+      execlp(prog, prog, 0);
+      fprintf(stderr, "ratpoison: exec %s ", prog);
+      perror(" failed");
+      exit(EXIT_FAILURE);
+    }
+    exit(0);
+  }
+  wait((int *) 0);
+#ifdef DEBUG
+  printf ("spawned %s\n", prog);
+#endif
+}
+
+void
+new_window (XCreateWindowEvent *e)
+{
+  rp_window *win;
+  screen_info *s;
+
+  if (e->override_redirect) return;
+
+  s = find_screen (e->parent);
+  win = find_window (e->window);
+
+  if (s && !win && e->window != s->key_window && e->window != s->bar_window)
+    {
+      win = add_to_window_list (s, e->window);
+      win->state = STATE_UNMAPPED;
+    }
+}
+
+void 
+unmap_notify (XEvent *ev)
+{
+  screen_info *s;
+  rp_window *win;
+
+  s = find_screen (ev->xunmap.event);
+  win = find_window (ev->xunmap.window);
+
+  if (s && win)
+    {
+      win->state = STATE_UNMAPPED;
+      update_window_names (s);
+    }
+}
+
+void 
+map_request (XEvent *ev)
+{
+  screen_info *s;
+  rp_window *win;
+
+  s = find_screen (ev->xmap.event);
+  win = find_window (ev->xmap.window);
+
+  if (s && win) 
+    {
+      switch (win->state)
+	{
+	case STATE_UNMAPPED:
+	  manage (win, s);
+	case STATE_MAPPED:
+	  XMapRaised (dpy, win->w);
+	  rp_current_window = win;
+	  set_active_window (rp_current_window);
+	}
+    }
+  else
+    {
+      printf ("Not managed.\n");
+      XMapWindow (dpy, ev->xmap.window);
+    }
+}
+
+void
+destroy_window (XDestroyWindowEvent *ev)
+{
+  int tmp;
+  Window fwin;
+  screen_info *s;
+  rp_window *win;
+
+  s = find_screen (ev->event);
+  win = find_window (ev->window);
+  if (s && win)
+    {
+      unmanage (win);
+    }
+
+  XGetInputFocus (dpy, &fwin, &tmp);
+  win = find_window (fwin);
+
+  if (win)
+    {
+      rp_current_window = win;
+      set_active_window (win);
+    }
+  else
+    {
+      update_window_names (s);
+    }
+
+#ifdef DEBUG
+  printf ("Remove window event.\n");
+#endif
+}
+
+void
+configure_request (XConfigureRequestEvent *e)
+{
+  XConfigureEvent ce;
+  //  XWindowChanges wc;
+  rp_window *win;
+
+  win = find_window (e->window);
+
+  if (win)
+    {
+/*        if (e->value_mask & CWX) */
+/*  	wc->x = e->x; */
+/*        if (e->value_mask & CWY) */
+/*  	wc->y = e->y; */
+/*        if (e->value_mask & CWWidth) */
+/*  	wc->dx = e->width; */
+/*        if (e->value_mask & CWHeight) */
+/*  	wc->dy = e->height; */
+/*        if (e->value_mask & CWBorderWidth) */
+/*  	wc->border_width = e->border_width; */
+
+/*        if (e->value_mask & CWStackMode) { */
+/*  	if (wc.stack_mode == Above); */
+/*  	else */
+/*  	  we->value_mask &= ~CWStackMode; */
+/*        } */
+
+/*        wc.sibling = None; */
+/*        wc.stack_mode = e.detail; */
+
+/*        XConfigureWindow (dpy, e->window, e->value_mask, &wc); */
+
+
+      ce.type = ConfigureNotify;
+      ce.event = e->window;
+      ce.window = e->window;
+      ce.x = 0;
+      ce.y = 0;
+      ce.width = win->scr->root_attr.width;
+      ce.height = win->scr->root_attr.height;
+      ce.border_width = 0;
+      ce.above = None;
+      ce.override_redirect = 0;
+      XSendEvent(dpy, win->w, False, StructureNotifyMask, (XEvent*)&ce);
+    }
+}
+
+static void
+client_msg (XClientMessageEvent *ev)
+{
+}
+
+static void
+handle_key (screen_info *s)
+{
+  int revert;
+  Window fwin;
+  XEvent ev;
+
+#ifdef DEBUG
+  printf ("handling key.\n");
+#endif
+
+  XGetInputFocus (dpy, &fwin, &revert);
+  XSetInputFocus (dpy, s->key_window, RevertToPointerRoot, CurrentTime);
+  XMaskEvent (dpy, KeyPressMask, &ev);
+  XSetInputFocus (dpy, fwin, revert, CurrentTime);
+
+  if (XLookupKeysym((XKeyEvent *) &ev, 0) == KEY_PREFIX && !ev.xkey.state)
+    {
+      /* Generate the prefix keystroke for the app */
+      ev.xkey.window = fwin;
+      ev.xkey.state = MODIFIER_PREFIX;
+      XSendEvent (dpy, fwin, False, KeyPressMask, &ev);
+      XSync (dpy, False);
+      return;
+    }
+
+  switch (XLookupKeysym((XKeyEvent *) &ev, 0))
+    {
+    case KEY_XTERM:
+      spawn (TERM_PROG);
+      break;
+    case KEY_EMACS:
+      spawn (EMACS_PROG);
+      break;
+    case KEY_PREVWINDOW:
+      prev_window ();
+      break;
+    case KEY_NEXTWINDOW:
+      next_window ();
+      break;
+    case KEY_TOGGLEBAR:
+      toggle_bar (s);
+      break;
+    case KEY_LASTWINDOW:
+      last_window ();
+      break;
+    default:
+      fprintf (stderr, "Unknown key command %c", (char)XKeycodeToKeysym(dpy, ev.xkey.keycode, 0));
+      break;
+    }
+}
+
+void
+key_press (XEvent *ev)
+{
+  screen_info *s;
+  unsigned int modifier = ev->xkey.state;
+  int ks = XLookupKeysym((XKeyEvent *) ev, 0);
+
+  s = find_screen (ev->xkey.root);
+
+  if (s && ks == KEY_PREFIX && (modifier & MODIFIER_PREFIX))
+    {
+      handle_key (s);
+    }
+}
+
+/* Given an event, call the correct function to handle it. */
+void
+delegate_event (XEvent *ev)
+{
+  switch (ev->type)
+    {
+    case ConfigureRequest:
+      configure_request (&ev->xconfigurerequest);
+      printf ("ConfigureRequest\n");
+      break;
+    case CirculateRequest:
+      printf ("CirculateRequest\n");
+      break;
+    case CreateNotify:
+      printf ("CreateNotify\n");
+      new_window (&ev->xcreatewindow);
+      break;
+    case DestroyNotify:
+      printf ("DestroyNotify\n");
+      destroy_window (&ev->xdestroywindow);
+      break;
+    case ClientMessage:
+      client_msg (&ev->xclient);
+      printf ("ClientMessage\n");
+      break;
+    case ColormapNotify:
+      printf ("ColormapNotify\n");
+      break;
+    case PropertyNotify:
+      printf ("PropertyNotify\n");
+      break;
+    case SelectionClear:
+      printf ("SelectionClear\n");
+      break;
+    case SelectionNotify:
+      printf ("SelectionNotify\n");
+      break;
+    case SelectionRequest:
+      printf ("SelectionRequest\n");
+      break;
+    case EnterNotify:
+      printf ("EnterNotify\n");
+      break;
+    case ReparentNotify:
+      printf ("ReparentNotify\n");
+      break;
+    case FocusIn:
+      printf ("FocusIn\n");
+      break;
+
+    case MapRequest:
+      printf ("MapRequest\n");
+      map_request (ev);
+      break;
+
+    case KeyPress:
+      printf ("KeyPress\n");
+      key_press (ev);
+      break;
+      
+    case UnmapNotify:
+      unmap_notify (ev);
+      printf ("UnmapNotify\n");
+      break;
+
+    case MotionNotify:
+      printf ("MotionNotify\n");
+      break;
+    case Expose:
+      printf ("Expose\n");
+      break;
+    case FocusOut:
+      printf ("FocusOut\n");
+      break;
+    case ConfigureNotify:
+      printf ("ConfigureNotify\n");
+      break;
+    case MapNotify:
+      printf ("MapNotify\n");
+      break;
+    case MappingNotify:
+      printf ("MappingNotify\n");
+      break;
+    default:
+      printf ("Unhandled event %d\n", ev->type);
+    }
+}
+
+void
+handle_events ()
+{
+  XEvent ev;
+
+  for (;;) 
+    {
+      XNextEvent (dpy, &ev);
+      delegate_event (&ev);
+    }
+}
+
+
diff --git a/events.h b/events.h
new file mode 100644
index 0000000..b92fe81
--- /dev/null
+++ b/events.h
@@ -0,0 +1,12 @@
+/* Function prototypes */
+
+#ifndef _EVENTS_H
+#define _EVENTS_H
+
+void handle_events ();
+void delegate_event (XEvent *ev);
+void key_press (XEvent *ev);
+void map_request (XEvent *ev);
+void unmap_notify (XEvent *ev);
+
+#endif _EVENTS_H
diff --git a/list.c b/list.c
new file mode 100644
index 0000000..ff38476
--- /dev/null
+++ b/list.c
@@ -0,0 +1,170 @@
+/* functions for handling the window list */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "ratpoison.h"
+
+rp_window *rp_window_head, *rp_window_tail;
+rp_window *rp_current_window;
+
+rp_window *
+add_to_window_list (screen_info *s, Window w)
+{
+  rp_window *new_window;
+
+  new_window = malloc (sizeof (rp_window));
+  if (new_window == NULL)
+    {
+      fprintf (stderr, "list.c:add_to_window_list():Out of memory!\n");
+      exit (EXIT_FAILURE);
+    }
+  new_window->w = w;
+  new_window->scr = s;
+  new_window->last_access = 0;
+  new_window->prev = NULL;
+  if ((new_window->name = malloc (strlen ("Unnamed") + 1)) == NULL)
+    {
+      fprintf (stderr, "list.c:add_to_window_list():Out of memory.\n");
+      exit (EXIT_FAILURE);
+    }
+  strcpy (new_window->name, "Unnamed");
+
+  if (rp_window_head == NULL)
+    {
+      /* The list is empty. */
+      rp_window_head = new_window;
+      rp_window_tail = new_window;
+      new_window->next = NULL;
+      return new_window;
+    }
+
+  /* Add the window to the head of the list. */
+  new_window->next = rp_window_head;
+  rp_window_head->prev = new_window;
+  rp_window_head = new_window;
+
+  return new_window;
+}
+
+/* Check to see if the window is already in our list of managed windows. */
+rp_window *
+find_window (Window w)
+{
+  rp_window *cur;
+
+  for (cur = rp_window_head; cur; cur = cur->next)
+    if (cur->w == w) return cur;
+
+  return NULL;
+}
+      
+void
+remove_from_window_list (rp_window *w)
+{
+  if (rp_window_head == w) rp_window_head = w->next;
+  if (rp_window_tail == w) rp_window_tail = w->prev;
+
+  if (w->prev != NULL) w->prev->next = w->next;
+  if (w->next != NULL) w->next->prev = w->prev;
+
+  if (rp_current_window == w) rp_current_window = rp_window_head;
+  if (rp_current_window && rp_current_window->state == STATE_UNMAPPED) next_window ();
+
+  free (w);
+#ifdef DEBUG
+  printf ("Removed window from list.\n");
+#endif
+}
+
+void
+set_current_window (rp_window *win)
+{
+  rp_current_window = win;  
+}
+
+void
+init_window_list ()
+{
+  rp_window_head = rp_window_tail = NULL;
+  rp_current_window = NULL;
+}
+
+void
+next_window ()
+{
+  if (rp_current_window != NULL)
+    {
+      rp_current_window = rp_current_window->next;
+      if (rp_current_window == NULL) 
+	{
+	  rp_current_window = rp_window_head;
+	}
+      if (rp_current_window->state == STATE_UNMAPPED) next_window ();
+      set_active_window (rp_current_window);
+    }
+}
+
+void
+prev_window ()
+{
+  if (rp_current_window != NULL)
+    {
+      set_current_window (rp_current_window->prev);
+      if (rp_current_window == NULL) 
+	{
+	  rp_current_window = rp_window_tail;
+	}
+      if (rp_current_window->state == STATE_UNMAPPED) prev_window ();
+      set_active_window (rp_current_window);
+    }
+}
+
+rp_window *
+find_last_accessed_window ()
+{
+  int last_access = 0;
+  rp_window *cur, *most_recent = NULL;
+
+  for (cur=rp_window_head; cur; cur=cur->next)
+    {
+      if (cur->last_access > last_access 
+	  && cur != rp_current_window 
+	  && cur->state == STATE_MAPPED) 
+	{
+	  most_recent = cur;
+	  last_access = most_recent->last_access;
+	}
+    }
+
+  return most_recent;
+}
+
+void
+last_window ()
+{
+  rp_current_window = find_last_accessed_window ();
+  set_active_window (rp_current_window);
+}
+
+void
+set_active_window (rp_window *rp_w)
+{
+  static int counter = 1;	/* increments every time this function
+                                   is called. This way we can track
+                                   which window was last accessed.  */
+
+  if (rp_w == NULL) return;
+
+  counter++;
+  rp_w->last_access = counter;
+
+  if (rp_w->scr->bar_is_raised) update_window_names (rp_w->scr);
+
+  XSetInputFocus (dpy, rp_w->w, 
+		  RevertToPointerRoot, CurrentTime);
+  XRaiseWindow (dpy, rp_w->w);
+      
+  /* Make sure the program bar is always on the top */
+  update_window_names (rp_w->scr);
+}
diff --git a/list.h b/list.h
new file mode 100644
index 0000000..bbbea95
--- /dev/null
+++ b/list.h
@@ -0,0 +1,16 @@
+/* functions for managing the window list */
+
+#ifndef _LIST_H
+#define _LIST_H
+
+rp_window *add_to_window_list (screen_info *s, Window w);
+void init_window_list ();
+void remove_from_window_list (rp_window *w);
+void next_window ();
+void prev_window ();
+void last_window ();
+rp_window *find_window (Window w);
+void maximize_current_window ();
+void set_active_window (rp_window *rp_w);
+void set_current_window (rp_window *win);
+#endif /* _LIST_H */
diff --git a/main.c b/main.c
new file mode 100644
index 0000000..5038d93
--- /dev/null
+++ b/main.c
@@ -0,0 +1,229 @@
+#include <X11/X.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/Xatom.h>
+#include <X11/Xproto.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <unistd.h>
+
+#include "ratpoison.h"
+
+static void init_screen (screen_info *s, int screen_num);
+
+Atom wm_state;
+Atom wm_change_state;
+Atom wm_protocols;
+Atom wm_delete;
+Atom wm_take_focus;
+Atom wm_colormaps;
+
+Atom rp_restart;
+
+screen_info *screens;
+int num_screens;
+Display *dpy;
+int exit_signal = 0;		/* Set by the signal handler. if this
+                                   is set, quit. */
+static XFontStruct *font;
+
+char **myargv;
+
+void
+sighandler ()
+{
+  fprintf (stderr, "ratpoison: Agg! I've been SHOT!\n"); 
+  clean_up ();
+  exit (EXIT_FAILURE);
+}
+
+void
+hup_handler ()
+{
+  /* This doesn't seem to restart more than once for some reason...*/
+
+  fprintf (stderr, "ratpoison: Restarting with a fresh plate.\n"); 
+  clean_up ();
+  execvp(myargv[0], myargv);
+}
+
+void
+alrm_handler ()
+{
+  int i;
+
+#ifdef DEBUG
+  printf ("alarm recieved.\n");
+#endif
+
+  /* FIXME: should only hide 1 bar, but we hide them all. */
+  for (i=0; i<num_screens; i++)
+    {
+      hide_bar (&screens[i]);
+    }
+  XSync (dpy, False);
+}
+
+int
+handler (Display *d, XErrorEvent *e)
+{
+  if (e->request_code == X_ChangeWindowAttributes && e->error_code == BadAccess) {
+    fprintf(stderr, "ratpoison: There can be only ONE.\n");
+    exit(EXIT_FAILURE);
+  }  
+
+  fprintf (stderr, "ratpoison: Ya some error happened, but whatever.\n");
+  return 0;
+}
+
+int
+main (int argc, char *argv[])
+{
+  int i;
+
+  myargv = argv;
+
+  if (!(dpy = XOpenDisplay (NULL)))
+    {
+      fprintf (stderr, "Can't open display\n");
+      return EXIT_FAILURE;
+    }
+
+  init_window_list ();
+
+  font = XLoadQueryFont (dpy, FONT_NAME);
+  if (font == NULL)
+    {
+      fprintf (stderr, "ratpoison: Cannot load font %s.\n", FONT_NAME);
+      exit (EXIT_FAILURE);
+    }
+
+  num_screens = ScreenCount (dpy);
+  if ((screens = (screen_info *)malloc (sizeof (screen_info) * num_screens)) == NULL)
+    {
+      fprintf (stderr, "ratpoison:main.c:Out of memory!\n");
+      exit (EXIT_FAILURE);
+    }  
+
+  printf ("%d screens.\n", num_screens);
+
+  /* Initialize the screens */
+  for (i=0; i<num_screens; i++)
+    {
+      init_screen (&screens[i], i);
+    }
+
+  /* Setup signal handlers. */
+  //  XSetErrorHandler(handler);  
+  if (signal (SIGALRM, alrm_handler) == SIG_IGN) signal (SIGALRM, SIG_IGN);
+  if (signal (SIGTERM, sighandler) == SIG_IGN) signal (SIGTERM, SIG_IGN);
+  if (signal (SIGINT, sighandler) == SIG_IGN) signal (SIGINT, SIG_IGN);
+  if (signal (SIGHUP, hup_handler) == SIG_IGN) signal (SIGHUP, SIG_IGN);
+
+  /* Set our Atoms */
+  wm_state = XInternAtom(dpy, "WM_STATE", False);
+  wm_change_state = XInternAtom(dpy, "WM_CHANGE_STATE", False);
+  wm_protocols = XInternAtom(dpy, "WM_PROTOCOLS", False);
+  wm_delete = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
+  wm_take_focus = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
+  wm_colormaps = XInternAtom(dpy, "WM_COLORMAP_WINDOWS", False);
+
+  rp_restart = XInternAtom (dpy, "RP_RESTART", False);
+
+  XSync (dpy, False);
+
+  /* Set an initial window as active. */
+  rp_current_window = rp_window_head;
+  set_active_window (rp_current_window);
+  
+  handle_events ();
+
+  return EXIT_SUCCESS;
+}
+
+static void
+init_screen (screen_info *s, int screen_num)
+{
+  XColor fg_color, bg_color, bold_color, junk;
+  XGCValues gv;
+
+  s->screen_num = screen_num;
+  s->root = RootWindow (dpy, screen_num);
+  s->def_cmap = DefaultColormap (dpy, screen_num);
+  s->font = font;
+  XGetWindowAttributes (dpy, s->root, &s->root_attr);
+
+  /* Get our program bar colors */
+  if (!XAllocNamedColor (dpy, s->def_cmap, BAR_FG_COLOR, &fg_color, &junk))
+    {
+      fprintf (stderr, "Unknown color '%s'\n", BAR_FG_COLOR);
+    }
+
+  if (!XAllocNamedColor (dpy, s->def_cmap, BAR_BG_COLOR, &bg_color, &junk))
+    {
+      fprintf (stderr, "Unknown color '%s'\n", BAR_BG_COLOR);
+    }
+
+  if (!XAllocNamedColor (dpy, s->def_cmap, BAR_BOLD_COLOR, &bold_color, &junk))
+    {
+      fprintf (stderr, "Unknown color '%s'\n", BAR_BOLD_COLOR);
+    }
+
+  /* Setup the GC for drawing the font. */
+  gv.foreground = fg_color.pixel;
+  gv.background = bg_color.pixel;
+  gv.function = GXcopy;
+  gv.line_width = 1;
+  gv.subwindow_mode = IncludeInferiors;
+  gv.font = font->fid;
+  s->normal_gc = XCreateGC(dpy, s->root, 
+			   GCForeground | GCBackground | GCFunction 
+			   | GCLineWidth | GCSubwindowMode | GCFont, 
+			   &gv);
+  gv.foreground = bold_color.pixel;
+  s->bold_gc = XCreateGC(dpy, s->root, 
+			 GCForeground | GCBackground | GCFunction 
+			 | GCLineWidth | GCSubwindowMode | GCFont, 
+			 &gv);
+
+  XSelectInput(dpy, s->root,
+               PropertyChangeMask | ColormapChangeMask
+               | SubstructureRedirectMask | KeyPressMask 
+               | SubstructureNotifyMask );
+  XSync (dpy, 0);
+
+  /* Create the program bar window. */
+  s->bar_is_raised = 0;
+  s->bar_window = XCreateSimpleWindow (dpy, s->root, 0, 0,
+				       1, 1, 1, fg_color.pixel, bg_color.pixel);
+
+  /* Setup the window that will recieve all keystrokes once the prefix
+     key has been pressed. */
+  s->key_window = XCreateSimpleWindow (dpy, s->root, 0, 0, 1, 1, 0, WhitePixel (dpy, 0), BlackPixel (dpy, 0));
+  XSelectInput (dpy, s->bar_window, StructureNotifyMask);
+  XMapWindow (dpy, s->key_window);
+  grab_keys (s);
+
+  scanwins (s);
+}
+
+void
+clean_up ()
+{
+  XSetInputFocus (dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
+  XCloseDisplay (dpy);
+}
+
+/* Given a root window, return the screen_info struct */
+screen_info *
+find_screen (Window w)
+{
+  int i;
+
+  for (i=0; i<num_screens; i++)
+    if (screens[i].root == w) return &screens[i];
+
+  return NULL;
+}
diff --git a/manage.c b/manage.c
new file mode 100644
index 0000000..59dc185
--- /dev/null
+++ b/manage.c
@@ -0,0 +1,108 @@
+/* Manage windows, such as Mapping them and making sure the proper key
+   Grabs have been put in place. */
+
+#include <X11/X.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/Xatom.h>
+#include <X11/keysymdef.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "ratpoison.h"
+
+extern Atom wm_state;
+
+void
+grab_keys (screen_info *s)
+{
+  XGrabKey(dpy, XKeysymToKeycode (dpy, KEY_XTERM ), AnyModifier, s->key_window, True, 
+	   GrabModeAsync, GrabModeAsync);
+  XGrabKey(dpy, XKeysymToKeycode (dpy, KEY_EMACS ), AnyModifier, s->key_window, True, 
+	   GrabModeAsync, GrabModeAsync);
+  XGrabKey(dpy, XKeysymToKeycode (dpy, KEY_PREVWINDOW ), AnyModifier, s->key_window, True, 
+	   GrabModeAsync, GrabModeAsync);
+  XGrabKey(dpy, XKeysymToKeycode (dpy, KEY_NEXTWINDOW ), AnyModifier, s->key_window, True, 
+	   GrabModeAsync, GrabModeAsync);
+  XGrabKey(dpy, XKeysymToKeycode (dpy, KEY_TOGGLEBAR ), AnyModifier, s->key_window, True, 
+	   GrabModeAsync, GrabModeAsync);
+  XGrabKey(dpy, XKeysymToKeycode (dpy, KEY_LASTWINDOW ), AnyModifier, s->key_window, True, 
+	   GrabModeAsync, GrabModeAsync);
+  XGrabKey(dpy, XKeysymToKeycode (dpy, KEY_PREFIX ), AnyModifier, s->key_window, True, 
+	   GrabModeAsync, GrabModeAsync);
+}
+
+static void
+grab_prefix_key (Window w)
+{
+  XGrabKey(dpy, XKeysymToKeycode (dpy, KEY_PREFIX ), MODIFIER_PREFIX, w, True, 
+	   GrabModeAsync, GrabModeAsync);
+}
+
+void
+manage (rp_window *win, screen_info *s)
+{
+  XClassHint hint;
+
+  XMapWindow (dpy, win->w);
+  XMoveResizeWindow (dpy, win->w, 0, 0, s->root_attr.width, s->root_attr.height);
+  XSelectInput (dpy, win->w, PropertyChangeMask);
+  XAddToSaveSet(dpy, win->w);
+  grab_prefix_key (win->w);
+
+  win->state = STATE_MAPPED;
+
+  if (!XGetClassHint (dpy, win->w, &hint))
+    {
+      fprintf (stderr, "ratpoison: I can't get the ClassHint, I don't what to do!\n");
+      exit (EXIT_FAILURE);
+    }
+
+  free (win->name);
+  if ((win->name = malloc (strlen (hint.res_name) + 1)) == NULL)
+    {
+      fprintf (stderr, "manage.c:manage():Out of memory!\n");
+      exit (EXIT_FAILURE);
+    }    
+  strcpy (win->name, hint.res_name);
+
+  /* Its our responsibility to free these. */
+  XFree (hint.res_name);
+  XFree (hint.res_class);
+
+#ifdef DEBUG
+  printf ("window '%s' managed.\n", win->name);
+#endif
+}
+
+void
+unmanage (rp_window *w)
+{
+  remove_from_window_list (w);
+}
+
+/* When starting up scan existing windows and start managing them. */
+void
+scanwins(screen_info *s)
+{
+  rp_window *win;
+  XWindowAttributes attr;
+  unsigned int i, nwins;
+  Window dw1, dw2, *wins;
+
+  XQueryTree(dpy, s->root, &dw1, &dw2, &wins, &nwins);
+#ifdef DEBUG
+  printf ("windows: %d\n", nwins);
+#endif
+
+  for (i = 0; i < nwins; i++) 
+    {
+      XGetWindowAttributes(dpy, wins[i], &attr);
+      if (wins[i] == s->bar_window || wins[i] == s->key_window) continue;
+
+      win = add_to_window_list (s, wins[i]);
+      manage (win, s);
+    }
+  XFree((void *) wins);	/* cast is to shut stoopid compiler up */
+}
diff --git a/manage.h b/manage.h
new file mode 100644
index 0000000..de58131
--- /dev/null
+++ b/manage.h
@@ -0,0 +1,13 @@
+/* manage.h */
+
+#ifndef _MANAGE_H
+#define _MANAGE_H
+
+#include "data.h"
+
+void grab_keys ();
+void scanwins(screen_info *s);
+void manage (rp_window *w, screen_info *s);
+void unmanage (rp_window *w);
+
+#endif /* _MANAGE_H */
diff --git a/ratpoison.h b/ratpoison.h
new file mode 100644
index 0000000..a8ab47a
--- /dev/null
+++ b/ratpoison.h
@@ -0,0 +1,17 @@
+/* Some standard datatypes for ratpoison */
+
+#ifndef _RATPOISON_H
+#define _RATPOISON_H
+
+#include "conf.h"
+
+#include "data.h"
+#include "manage.h"
+#include "list.h"
+#include "bar.h"
+#include "events.h"
+
+void clean_up ();
+screen_info *find_screen (Window w);
+
+#endif /* _RATPOISON_H */