initial checkin

1 files changed, 354 insertions, 0 deletions

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);
+    }
+}
+
+