1/*
  2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
  3 * See LICENSE file for license details.
  4 */
  5
  6#include <stdlib.h>
  7#include <string.h>
  8#include <X11/Xatom.h>
  9
 10#include "util.h"
 11#include "wm.h"
 12
 13static void
 14update_client_name(Client *c)
 15{
 16	XTextProperty name;
 17	int n;
 18	char **list = NULL;
 19
 20	name.nitems = 0;
 21	c->name[0] = 0;
 22	XGetTextProperty(dpy, c->win, &name, net_atom[NetWMName]);
 23	if(!name.nitems)
 24		XGetWMName(dpy, c->win, &name);
 25	if(!name.nitems)
 26		return;
 27	if(name.encoding == XA_STRING)
 28		strncpy(c->name, (char *)name.value, sizeof(c->name));
 29	else {
 30		if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
 31				&& n > 0 && *list)
 32		{
 33			strncpy(c->name, *list, sizeof(c->name));
 34			XFreeStringList(list);
 35		}
 36	}
 37	XFree(name.value);
 38}
 39
 40void
 41manage(Window w, XWindowAttributes *wa)
 42{
 43	Client *c, **l;
 44	XSetWindowAttributes twa;
 45	long msize;
 46
 47	c = emallocz(sizeof(Client));
 48	c->win = w;
 49	c->r[RFloat].x = wa->x;
 50	c->r[RFloat].y = wa->y;
 51	c->r[RFloat].width = wa->width;
 52	c->r[RFloat].height = wa->height;
 53	c->border = wa->border_width;
 54	XSetWindowBorderWidth(dpy, c->win, 0);
 55	XGetTransientForHint(dpy, c->win, &c->trans);
 56	if(!XGetWMNormalHints(dpy, c->win, &c->size, &msize) || !c->size.flags)
 57		c->size.flags = PSize;
 58	c->fixedsize =
 59		(c->size.flags & PMinSize && c->size.flags & PMaxSize
 60		 && c->size.min_width == c->size.max_width
 61		 && c->size.min_height == c->size.max_height);
 62	update_client_name(c);
 63	twa.override_redirect = 1;
 64	twa.background_pixmap = ParentRelative;
 65	twa.event_mask = ExposureMask;
 66
 67	c->title = XCreateWindow(dpy, root, c->r[RFloat].x, c->r[RFloat].y,
 68			c->r[RFloat].width, barrect.height, 0,
 69			DefaultDepth(dpy, screen), CopyFromParent,
 70			DefaultVisual(dpy, screen),
 71			CWOverrideRedirect | CWBackPixmap | CWEventMask, &twa);
 72
 73	for(l=&clients; *l; l=&(*l)->next);
 74	c->next = *l; /* *l == nil */
 75	*l = c;
 76	XMapRaised(dpy, c->win);
 77	XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
 78	XFlush(dpy);
 79}
 80
 81static int
 82dummy_error_handler(Display *dpy, XErrorEvent *error)
 83{
 84	return 0;
 85}
 86
 87void
 88unmanage(Client *c)
 89{
 90	Client **l;
 91
 92	XGrabServer(dpy);
 93	XSetErrorHandler(dummy_error_handler);
 94
 95	XUnmapWindow(dpy, c->win);
 96	XDestroyWindow(dpy, c->title);
 97
 98	for(l=&clients; *l && *l != c; l=&(*l)->next);
 99	eassert(*l == c);
100	*l = c->next;
101	free(c);
102
103	XFlush(dpy);
104	XSetErrorHandler(error_handler);
105	XUngrabServer(dpy);
106	/*flush_masked_events(EnterWindowMask); ? */
107}
108
109
110Client *
111getclient(Window w)
112{
113	Client *c;
114	for(c = clients; c; c = c->next)
115		if(c->win == w)
116			return c;
117	return NULL;
118}