Change 9wm to look like rio.

src/cmd/rio/client.c

@@ -0,0 +1,242 @@
+/* Copyright (c) 1994-1996 David Hogan, see README for licence details */
+#include <stdio.h>
+#include <X11/X.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include "dat.h"
+#include "fns.h"
+
+Client	*clients;
+Client	*current;
+
+void
+setactive(Client *c, int on)
+{
+	if (c->parent == c->screen->root) {
+		fprintf(stderr, "9wm: bad parent in setactive; dumping core\n");
+		abort();
+	}
+	if (on) {
+		XUngrabButton(dpy, AnyButton, AnyModifier, c->parent);
+		XSetInputFocus(dpy, c->window, RevertToPointerRoot, timestamp());
+		if (c->proto & Ptakefocus)
+			sendcmessage(c->window, wm_protocols, wm_take_focus, 0);
+		cmapfocus(c);
+	}
+	else
+		XGrabButton(dpy, AnyButton, AnyModifier, c->parent, False,
+			ButtonMask, GrabModeAsync, GrabModeSync, None, None);
+	draw_border(c, on);
+}
+
+void
+draw_border(Client *c, int active)
+{
+	unsigned long pixel;
+
+	if(active){
+		if(c->hold)
+			pixel = c->screen->activeholdborder;
+		else
+			pixel = c->screen->activeborder;
+	}else{
+		if(c->hold)
+			pixel = c->screen->inactiveholdborder;
+		else
+			pixel = c->screen->inactiveborder;
+	}
+
+	XSetWindowBackground(dpy, c->parent, pixel);
+	XClearWindow(dpy, c->parent);
+}
+
+void
+active(Client *c)
+{
+	Client *cc;
+
+	if (c == 0) {
+		fprintf(stderr, "9wm: active(c==0)\n");
+		return;
+	}
+	if (c == current)
+		return;
+	if (current) {
+		setactive(current, 0);
+		if (current->screen != c->screen)
+			cmapnofocus(current->screen);
+	}
+	setactive(c, 1);
+	for (cc = clients; cc; cc = cc->next)
+		if (cc->revert == c)
+			cc->revert = c->revert;
+	c->revert = current;
+	while (c->revert && !normal(c->revert))
+		c->revert = c->revert->revert;
+	current = c;
+#ifdef	DEBUG
+	if (debug)
+		dump_revert();
+#endif
+}
+
+void
+nofocus(void)
+{
+	static Window w = 0;
+	int mask;
+	XSetWindowAttributes attr;
+	Client *c;
+
+	if (current) {
+		setactive(current, 0);
+		for (c = current->revert; c; c = c->revert)
+			if (normal(c)) {
+				active(c);
+				return;
+			}
+		cmapnofocus(current->screen);
+		/* if no candidates to revert to, fall through */
+	}
+	current = 0;
+	if (w == 0) {
+		mask = CWOverrideRedirect;
+		attr.override_redirect = 1;
+		w = XCreateWindow(dpy, screens[0].root, 0, 0, 1, 1, 0,
+			CopyFromParent, InputOnly, CopyFromParent, mask, &attr);
+		XMapWindow(dpy, w);
+	}
+	XSetInputFocus(dpy, w, RevertToPointerRoot, timestamp());
+}
+
+void
+top(Client *c)
+{
+	Client **l, *cc;
+
+	l = &clients;
+	for (cc = *l; cc; cc = *l) {
+		if (cc == c) {
+			*l = c->next;
+			c->next = clients;
+			clients = c;
+			return;
+		}
+		l = &cc->next;
+	}
+	fprintf(stderr, "9wm: %x not on client list in top()\n", c);
+}
+
+Client *
+getclient(Window w, int create)
+{
+	Client *c;
+
+	if (w == 0 || getscreen(w))
+		return 0;
+
+	for (c = clients; c; c = c->next)
+		if (c->window == w || c->parent == w)
+			return c;
+
+	if (!create)
+		return 0;
+
+	c = (Client *)malloc(sizeof(Client));
+	memset(c, 0, sizeof(Client));
+	c->window = w;
+	/* c->parent will be set by the caller */
+	c->parent = None;
+	c->reparenting = 0;
+	c->state = WithdrawnState;
+	c->init = 0;
+	c->cmap = None;
+	c->label = c->class = 0;
+	c->revert = 0;
+	c->is9term = 0;
+	c->hold = 0;
+	c->ncmapwins = 0;
+	c->cmapwins = 0;
+	c->wmcmaps = 0;
+	c->next = clients;
+	clients = c;
+	return c;
+}
+
+void
+rmclient(Client *c)
+{
+	Client *cc;
+
+	for (cc = current; cc && cc->revert; cc = cc->revert)
+		if (cc->revert == c)
+			cc->revert = cc->revert->revert;
+
+	if (c == clients)
+		clients = c->next;
+	for (cc = clients; cc && cc->next; cc = cc->next)
+		if (cc->next == c)
+			cc->next = cc->next->next;
+
+	if (hidden(c))
+		unhidec(c, 0);
+
+	if (c->parent != c->screen->root)
+		XDestroyWindow(dpy, c->parent);
+
+	c->parent = c->window = None;		/* paranoia */
+	if (current == c) {
+		current = c->revert;
+		if (current == 0)
+			nofocus();
+		else {
+			if (current->screen != c->screen)
+				cmapnofocus(c->screen);
+			setactive(current, 1);
+		}
+	}
+	if (c->ncmapwins != 0) {
+		XFree((char *)c->cmapwins);
+		free((char *)c->wmcmaps);
+	}
+	if (c->iconname != 0)
+		XFree((char*) c->iconname);
+	if (c->name != 0)
+		XFree((char*) c->name);
+	if (c->instance != 0)
+		XFree((char*) c->instance);
+	if (c->class != 0)
+		XFree((char*) c->class);
+	memset(c, 0, sizeof(Client));		/* paranoia */
+	free(c);
+}
+
+#ifdef	DEBUG
+void
+dump_revert(void)
+{
+	Client *c;
+	int i;
+
+	i = 0;
+	for (c = current; c; c = c->revert) {
+		fprintf(stderr, "%s(%x:%d)", c->label ? c->label : "?", c->window, c->state);
+		if (i++ > 100)
+			break;
+		if (c->revert)
+			fprintf(stderr, " -> ");
+	}
+	if (current == 0)
+		fprintf(stderr, "empty");
+	fprintf(stderr, "\n");
+}
+
+void
+dump_clients(void)
+{
+	Client *c;
+
+	for (c = clients; c; c = c->next)
+		fprintf(stderr, "w 0x%x parent 0x%x @ (%d, %d)\n", c->window, c->parent, c->x, c->y);
+}
+#endif