Added DWM

1 files changed, 206 insertions, 0 deletions

diff --git a/patch/swallow.c b/patch/swallow.c
new file mode 100644
index 0000000..824ca83
--- /dev/null
+++ b/patch/swallow.c
@@ -0,0 +1,206 @@
+#include <X11/Xlib-xcb.h>
+#include <xcb/res.h>
+#ifdef __OpenBSD__
+#include <sys/sysctl.h>
+#include <kvm.h>
+#endif /* __OpenBSD__ */
+
+static int scanner;
+static xcb_connection_t *xcon;
+
+int
+swallow(Client *p, Client *c)
+{
+	Client *s;
+
+	if (c->noswallow > 0 || c->isterminal)
+		return 0;
+	if (c->noswallow < 0 && !swallowfloating && c->isfloating)
+		return 0;
+
+	XMapWindow(dpy, c->win);
+
+	detach(c);
+	detachstack(c);
+
+	setclientstate(c, WithdrawnState);
+	XUnmapWindow(dpy, p->win);
+
+	p->swallowing = c;
+	c->mon = p->mon;
+
+	Window w = p->win;
+	p->win = c->win;
+	c->win = w;
+
+	XChangeProperty(dpy, c->win, netatom[NetClientList], XA_WINDOW, 32, PropModeReplace,
+		(unsigned char *) &(p->win), 1);
+
+	updatetitle(p);
+	s = scanner ? c : p;
+	#if BAR_EWMHTAGS_PATCH
+	setfloatinghint(s);
+	#endif // BAR_EWMHTAGS_PATCH
+	XMoveResizeWindow(dpy, p->win, s->x, s->y, s->w, s->h);
+	arrange(p->mon);
+	configure(p);
+	updateclientlist();
+
+	return 1;
+}
+
+void
+unswallow(Client *c)
+{
+	c->win = c->swallowing->win;
+
+	free(c->swallowing);
+	c->swallowing = NULL;
+
+	XDeleteProperty(dpy, c->win, netatom[NetClientList]);
+
+	/* unfullscreen the client */
+	setfullscreen(c, 0);
+	updatetitle(c);
+	arrange(c->mon);
+	XMapWindow(dpy, c->win);
+	XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
+	#if BAR_EWMHTAGS_PATCH
+	setfloatinghint(c);
+	#endif // BAR_EWMHTAGS_PATCH
+	setclientstate(c, NormalState);
+	focus(NULL);
+	arrange(c->mon);
+}
+
+pid_t
+winpid(Window w)
+{
+	pid_t result = 0;
+
+	#ifdef __linux__
+	xcb_res_client_id_spec_t spec = {0};
+	spec.client = w;
+	spec.mask = XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID;
+
+	xcb_generic_error_t *e = NULL;
+	xcb_res_query_client_ids_cookie_t c = xcb_res_query_client_ids(xcon, 1, &spec);
+	xcb_res_query_client_ids_reply_t *r = xcb_res_query_client_ids_reply(xcon, c, &e);
+
+	if (!r)
+		return (pid_t)0;
+
+	xcb_res_client_id_value_iterator_t i = xcb_res_query_client_ids_ids_iterator(r);
+	for (; i.rem; xcb_res_client_id_value_next(&i)) {
+		spec = i.data->spec;
+		if (spec.mask & XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID) {
+			uint32_t *t = xcb_res_client_id_value_value(i.data);
+			result = *t;
+			break;
+		}
+	}
+
+	free(r);
+
+	if (result == (pid_t)-1)
+		result = 0;
+
+	#endif /* __linux__ */
+	#ifdef __OpenBSD__
+	Atom type;
+	int format;
+	unsigned long len, bytes;
+	unsigned char *prop;
+	pid_t ret;
+
+	if (XGetWindowProperty(dpy, w, XInternAtom(dpy, "_NET_WM_PID", 1), 0, 1, False, AnyPropertyType, &type, &format, &len, &bytes, &prop) != Success || !prop)
+		return 0;
+
+	ret = *(pid_t*)prop;
+	XFree(prop);
+	result = ret;
+	#endif /* __OpenBSD__ */
+
+	return result;
+}
+
+pid_t
+getparentprocess(pid_t p)
+{
+	unsigned int v = 0;
+
+#ifdef __linux__
+	FILE *f;
+	char buf[256];
+	snprintf(buf, sizeof(buf) - 1, "/proc/%u/stat", (unsigned)p);
+
+	if (!(f = fopen(buf, "r")))
+		return (pid_t)0;
+
+	if (fscanf(f, "%*u %*s %*c %u", (unsigned *)&v) != 1)
+		v = (pid_t)0;
+	fclose(f);
+#endif /* __linux__ */
+#ifdef __OpenBSD__
+	int n;
+	kvm_t *kd;
+	struct kinfo_proc *kp;
+
+	kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, NULL);
+	if (!kd)
+		return 0;
+
+	kp = kvm_getprocs(kd, KERN_PROC_PID, p, sizeof(*kp), &n);
+	v = kp->p_ppid;
+#endif /* __OpenBSD__ */
+	return (pid_t)v;
+}
+
+int
+isdescprocess(pid_t p, pid_t c)
+{
+	while (p != c && c != 0)
+		c = getparentprocess(c);
+
+	return (int)c;
+}
+
+Client *
+termforwin(const Client *w)
+{
+	Client *c;
+	Monitor *m;
+
+	if (!w->pid || w->isterminal)
+		return NULL;
+
+	c = selmon->sel;
+	if (c && c->isterminal && !c->swallowing && c->pid && isdescprocess(c->pid, w->pid))
+		return c;
+
+	for (m = mons; m; m = m->next) {
+		for (c = m->clients; c; c = c->next) {
+			if (c->isterminal && !c->swallowing && c->pid && isdescprocess(c->pid, w->pid))
+				return c;
+		}
+	}
+
+	return NULL;
+}
+
+Client *
+swallowingclient(Window w)
+{
+	Client *c;
+	Monitor *m;
+
+	for (m = mons; m; m = m->next) {
+		for (c = m->clients; c; c = c->next) {
+			if (c->swallowing && c->swallowing->win == w)
+				return c;
+		}
+	}
+
+	return NULL;
+}
+