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
 13#define CLIENT_MASK		(StructureNotifyMask | PropertyChangeMask | EnterWindowMask)
 14
 15void
 16update_name(Client *c)
 17{
 18	XTextProperty name;
 19	int n;
 20	char **list = NULL;
 21
 22	name.nitems = 0;
 23	c->name[0] = 0;
 24	XGetTextProperty(dpy, c->win, &name, net_atom[NetWMName]);
 25	if(!name.nitems)
 26		XGetWMName(dpy, c->win, &name);
 27	if(!name.nitems)
 28		return;
 29	if(name.encoding == XA_STRING)
 30		strncpy(c->name, (char *)name.value, sizeof(c->name));
 31	else {
 32		if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
 33				&& n > 0 && *list)
 34		{
 35			strncpy(c->name, *list, sizeof(c->name));
 36			XFreeStringList(list);
 37		}
 38	}
 39	XFree(name.value);
 40	if(c == stack)
 41		draw_bar();
 42	else
 43		draw_client(c);
 44}
 45
 46void
 47focus(Client *c)
 48{
 49	Client **l;
 50	for(l=&stack; *l && *l != c; l=&(*l)->snext);
 51	eassert(*l == c);
 52	*l = c->snext;
 53	c->snext = stack;
 54	stack = c;
 55	XRaiseWindow(dpy, c->win);
 56	XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
 57	XFlush(dpy);
 58}
 59
 60void
 61manage(Window w, XWindowAttributes *wa)
 62{
 63	Client *c, **l;
 64	XSetWindowAttributes twa;
 65	long msize;
 66
 67	c = emallocz(sizeof(Client));
 68	c->win = w;
 69	c->r[RFloat].x = wa->x;
 70	c->r[RFloat].y = wa->y;
 71	c->r[RFloat].width = wa->width;
 72	c->r[RFloat].height = wa->height;
 73	c->border = wa->border_width;
 74	XSetWindowBorderWidth(dpy, c->win, 0);
 75	XSelectInput(dpy, c->win, CLIENT_MASK);
 76	XGetTransientForHint(dpy, c->win, &c->trans);
 77	if(!XGetWMNormalHints(dpy, c->win, &c->size, &msize) || !c->size.flags)
 78		c->size.flags = PSize;
 79	c->fixedsize =
 80		(c->size.flags & PMinSize && c->size.flags & PMaxSize
 81		 && c->size.min_width == c->size.max_width
 82		 && c->size.min_height == c->size.max_height);
 83	update_name(c);
 84	twa.override_redirect = 1;
 85	twa.background_pixmap = ParentRelative;
 86	twa.event_mask = ExposureMask;
 87
 88	c->title = XCreateWindow(dpy, root, c->r[RFloat].x, c->r[RFloat].y,
 89			c->r[RFloat].width, barrect.height, 0,
 90			DefaultDepth(dpy, screen), CopyFromParent,
 91			DefaultVisual(dpy, screen),
 92			CWOverrideRedirect | CWBackPixmap | CWEventMask, &twa);
 93
 94	for(l=&clients; *l; l=&(*l)->next);
 95	c->next = *l; /* *l == nil */
 96	*l = c;
 97	c->snext = stack;
 98	stack = c;
 99	XMapWindow(dpy, c->win);
100	XGrabButton(dpy, AnyButton, Mod1Mask, c->win, False, ButtonPressMask,
101			GrabModeAsync, GrabModeSync, None, None);
102	focus(c);
103}
104
105void
106resize(Client *c)
107{
108	XConfigureEvent e;
109
110	XMoveResizeWindow(dpy, c->win, c->r[RFloat].x, c->r[RFloat].y,
111			c->r[RFloat].width, c->r[RFloat].height);
112	e.type = ConfigureNotify;
113	e.event = c->win;
114	e.window = c->win;
115	e.x = c->r[RFloat].x;
116	e.y = c->r[RFloat].y;
117	e.width = c->r[RFloat].width;
118	e.height = c->r[RFloat].height;
119	e.border_width = c->border;
120	e.above = None;
121	e.override_redirect = False;
122	XSelectInput(dpy, c->win, CLIENT_MASK & ~StructureNotifyMask);
123	XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&e);
124	XSelectInput(dpy, c->win, CLIENT_MASK);
125	XFlush(dpy);
126}
127
128static int
129dummy_error_handler(Display *dpy, XErrorEvent *error)
130{
131	return 0;
132}
133
134void
135unmanage(Client *c)
136{
137	Client **l;
138
139	XGrabServer(dpy);
140	XSetErrorHandler(dummy_error_handler);
141
142	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
143	XUnmapWindow(dpy, c->win);
144	XDestroyWindow(dpy, c->title);
145
146	for(l=&clients; *l && *l != c; l=&(*l)->next);
147	eassert(*l == c);
148	*l = c->next;
149	for(l=&stack; *l && *l != c; l=&(*l)->snext);
150	eassert(*l == c);
151	*l = c->snext;
152	free(c);
153
154	XFlush(dpy);
155	XSetErrorHandler(error_handler);
156	XUngrabServer(dpy);
157	discard_events(EnterWindowMask);
158	if(stack)
159		focus(stack);
160}
161
162
163Client *
164getclient(Window w)
165{
166	Client *c;
167	for(c = clients; c; c = c->next)
168		if(c->win == w)
169			return c;
170	return NULL;
171}
172
173void
174draw_client(Client *c)
175{
176	
177
178
179}