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
 47update_size(Client *c)
 48{
 49	XSizeHints size;
 50	long msize;
 51	if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
 52		size.flags = PSize;
 53	c->flags = size.flags;
 54	c->basew = size.base_width;
 55	c->baseh = size.base_height;
 56	c->incw = size.width_inc;
 57	c->inch = size.height_inc;
 58	c->maxw = size.max_width;
 59	c->maxh = size.max_height;
 60	c->minw = size.min_width;
 61	c->minh = size.min_height;
 62}
 63
 64void
 65focus(Client *c)
 66{
 67	Client **l;
 68	for(l=&stack; *l && *l != c; l=&(*l)->snext);
 69	eassert(*l == c);
 70	*l = c->snext;
 71	c->snext = stack;
 72	stack = c;
 73	XRaiseWindow(dpy, c->win);
 74	XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
 75	XFlush(dpy);
 76}
 77
 78void
 79manage(Window w, XWindowAttributes *wa)
 80{
 81	Client *c, **l;
 82	XSetWindowAttributes twa;
 83
 84	c = emallocz(sizeof(Client));
 85	c->win = w;
 86	c->x = wa->x;
 87	c->y = wa->y;
 88	c->w = wa->width;
 89	c->h = wa->height;
 90	update_size(c);
 91	XSetWindowBorderWidth(dpy, c->win, 1);
 92	XSelectInput(dpy, c->win, CLIENT_MASK);
 93	XGetTransientForHint(dpy, c->win, &c->trans);
 94	update_name(c);
 95	twa.override_redirect = 1;
 96	twa.background_pixmap = ParentRelative;
 97	twa.event_mask = ExposureMask;
 98
 99	c->title = XCreateWindow(dpy, root, c->x, c->y, c->w, barrect.height,
100			0, DefaultDepth(dpy, screen), CopyFromParent,
101			DefaultVisual(dpy, screen),
102			CWOverrideRedirect | CWBackPixmap | CWEventMask, &twa);
103
104	for(l=&clients; *l; l=&(*l)->next);
105	c->next = *l; /* *l == nil */
106	*l = c;
107	c->snext = stack;
108	stack = c;
109	XMapWindow(dpy, c->win);
110	XGrabButton(dpy, Button1, Mod1Mask, c->win, False, ButtonPressMask,
111			GrabModeAsync, GrabModeSync, None, None);
112	XGrabButton(dpy, Button2, Mod1Mask, c->win, False, ButtonPressMask,
113			GrabModeAsync, GrabModeSync, None, None);
114	XGrabButton(dpy, Button3, Mod1Mask, c->win, False, ButtonPressMask,
115			GrabModeAsync, GrabModeSync, None, None);
116	focus(c);
117}
118
119void
120resize(Client *c)
121{
122	XConfigureEvent e;
123
124	XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
125	e.type = ConfigureNotify;
126	e.event = c->win;
127	e.window = c->win;
128	e.x = c->x;
129	e.y = c->y;
130	e.width = c->w;
131	e.height = c->h;
132	e.border_width = 0;
133	e.above = None;
134	e.override_redirect = False;
135	XSelectInput(dpy, c->win, CLIENT_MASK & ~StructureNotifyMask);
136	XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&e);
137	XSelectInput(dpy, c->win, CLIENT_MASK);
138	XFlush(dpy);
139}
140
141static int
142dummy_error_handler(Display *dpy, XErrorEvent *error)
143{
144	return 0;
145}
146
147void
148unmanage(Client *c)
149{
150	Client **l;
151
152	XGrabServer(dpy);
153	XSetErrorHandler(dummy_error_handler);
154
155	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
156	XUnmapWindow(dpy, c->win);
157	XDestroyWindow(dpy, c->title);
158
159	for(l=&clients; *l && *l != c; l=&(*l)->next);
160	eassert(*l == c);
161	*l = c->next;
162	for(l=&stack; *l && *l != c; l=&(*l)->snext);
163	eassert(*l == c);
164	*l = c->snext;
165	free(c);
166
167	XFlush(dpy);
168	XSetErrorHandler(error_handler);
169	XUngrabServer(dpy);
170	discard_events(EnterWindowMask);
171	if(stack)
172		focus(stack);
173}
174
175
176Client *
177getclient(Window w)
178{
179	Client *c;
180	for(c = clients; c; c = c->next)
181		if(c->win == w)
182			return c;
183	return NULL;
184}
185
186void
187draw_client(Client *c)
188{
189	
190
191
192}