tmanage.c - plan9port - [fork] Plan 9 from user space
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tmanage.c (10084B)
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1 /*
2 * Window management.
3 */
4
5 /* Copyright (c) 1994-1996 David Hogan, see README for licence details */
6 #include <stdio.h>
7 #include <stdlib.h>
8 #include <inttypes.h>
9 #include <X11/X.h>
10 #include <X11/Xos.h>
11 #include <X11/Xlib.h>
12 #include <X11/Xutil.h>
13 #include <X11/Xatom.h>
14 #include <X11/extensions/shape.h>
15 #include "dat.h"
16 #include "fns.h"
17
18 int isNew;
19
20 int
21 manage(Client *c, int mapped)
22 {
23 int fixsize, dohide, doreshape, state;
24 long msize;
25 XClassHint class;
26 XWMHints *hints;
27 XSetWindowAttributes attrs;
28
29 trace("manage", c, 0);
30 XSelectInput(dpy, c->window, ColormapChangeMask | EnterWindowMask | PropertyChangeMask | FocusChangeMask | KeyPressMask);
31
32 /* Get loads of hints */
33
34 if(XGetClassHint(dpy, c->window, &class) != 0){ /* ``Success'' */
35 c->instance = class.res_name;
36 c->class = class.res_class;
37 c->is9term = 0;
38 if(isNew){
39 c->is9term = strstr(c->class, "term") || strstr(c->class, "Term");
40 isNew = 0;
41 }
42 }
43 else {
44 c->instance = 0;
45 c->class = 0;
46 c->is9term = 0;
47 }
48 c->iconname = getprop(c->window, XA_WM_ICON_NAME);
49 c->name = getprop(c->window, XA_WM_NAME);
50 setlabel(c);
51
52 hints = XGetWMHints(dpy, c->window);
53 if(XGetWMNormalHints(dpy, c->window, &c->size, &msize) == 0 || c->size.flags == 0)
54 c->size.flags = PSize; /* not specified - punt */
55
56 getcmaps(c);
57 getproto(c);
58 gettrans(c);
59 if(c->is9term)
60 c->hold = getiprop(c->window, _rio_hold_mode);
61
62 /* Figure out what to do with the window from hints */
63
64 if(!getstate(c->window, &state))
65 state = hints ? hints->initial_state : NormalState;
66 dohide = (state == IconicState);
67
68 fixsize = 0;
69 if((c->size.flags & (USSize|PSize)))
70 fixsize = 1;
71 if((c->size.flags & (PMinSize|PMaxSize)) == (PMinSize|PMaxSize) && c->size.min_width == c->size.max_width && c->size.min_height == c->size.max_height)
72 fixsize = 1;
73 doreshape = !mapped;
74 if(fixsize){
75 if(c->size.flags & USPosition)
76 doreshape = 0;
77 if(dohide && (c->size.flags & PPosition))
78 doreshape = 0;
79 if(c->trans != None)
80 doreshape = 0;
81 }
82 if(c->is9term)
83 fixsize = 0;
84 if(c->size.flags & PBaseSize){
85 c->min_dx = c->size.base_width;
86 c->min_dy = c->size.base_height;
87 }
88 else if(c->size.flags & PMinSize){
89 c->min_dx = c->size.min_width;
90 c->min_dy = c->size.min_height;
91 }
92 else if(c->is9term){
93 c->min_dx = 100;
94 c->min_dy = 50;
95 }
96 else
97 c->min_dx = c->min_dy = 0;
98
99 if(hints)
100 XFree(hints);
101
102 /* Now do it!!! */
103
104 if(doreshape){
105 if(0) fprintf(stderr, "in doreshape is9term=%d fixsize=%d, x=%d, y=%d, min_dx=%d, min_dy=%d, dx=%d, dy=%d\n",
106 c->is9term, fixsize, c->x, c->y, c->min_dx, c->min_dy, c->dx, c->dy);
107 if(current && current->screen == c->screen)
108 cmapnofocus(c->screen);
109 if(!c->is9term && c->x==0 && c->y==0){
110 static int nwin;
111
112 c->x = 20*nwin+BORDER;
113 c->y = 20*nwin+BORDER;
114 nwin++;
115 nwin %= 10;
116 }
117
118 if(c->is9term && !(fixsize ? drag(c, Button3) : sweep(c, Button3))){
119 XKillClient(dpy, c->window);
120 rmclient(c);
121 if(current && current->screen == c->screen)
122 cmapfocus(current);
123 return 0;
124 }
125 }
126
127 attrs.border_pixel = c->screen->black;
128 attrs.background_pixel = c->screen->white;
129 attrs.colormap = c->screen->def_cmap;
130 c->parent = XCreateWindow(dpy, c->screen->root,
131 c->x - BORDER, c->y - BORDER,
132 c->dx + 2*BORDER, c->dy + 2*BORDER,
133 0,
134 c->screen->depth,
135 CopyFromParent,
136 c->screen->vis,
137 CWBackPixel | CWBorderPixel | CWColormap,
138 &attrs);
139
140 XSelectInput(dpy, c->parent, SubstructureRedirectMask | SubstructureNotifyMask|ButtonPressMask| PointerMotionMask|LeaveWindowMask|KeyPressMask);
141 if(mapped)
142 c->reparenting = 1;
143 if(doreshape && !fixsize)
144 XResizeWindow(dpy, c->window, c->dx, c->dy);
145 XSetWindowBorderWidth(dpy, c->window, 0);
146
147 /*
148 * To have something more than only a big white or black border
149 * XXX should replace this by a pattern in the white or black
150 * such that we can see the border also if all our
151 * windows are black and/or white
152 * (black (or white) border around black (or white) window
153 * is not very helpful.
154 */
155 if(c->screen->depth <= 8){
156 XSetWindowBorderWidth(dpy, c->parent, 1);
157 }
158
159 XReparentWindow(dpy, c->window, c->parent, BORDER, BORDER);
160 #ifdef SHAPE
161 if(shape){
162 XShapeSelectInput(dpy, c->window, ShapeNotifyMask);
163 ignore_badwindow = 1; /* magic */
164 setshape(c);
165 ignore_badwindow = 0;
166 }
167 #endif
168 XAddToSaveSet(dpy, c->window);
169 if(dohide)
170 hide(c);
171 else {
172 XMapWindow(dpy, c->window);
173 XMapWindow(dpy, c->parent);
174 XUnmapWindow(dpy, c->screen->sweepwin);
175 if(nostalgia || doreshape)
176 active(c);
177 else if(c->trans != None && current && current->window == c->trans)
178 active(c);
179 else
180 setactive(c, 0);
181 setstate(c, NormalState);
182 }
183 if(current && (current != c))
184 cmapfocus(current);
185 c->init = 1;
186
187 /*
188 * If we swept the window, let's send a resize event to the
189 * guy who just got resized. It's not clear whether the apps
190 * should notice their new size via other means. Try as I might,
191 * I can't find a way to have them notice during initdraw, so
192 * I solve the problem this way instead. -rsc
193 */
194 if(c->is9term)
195 sendconfig(c);
196 return 1;
197 }
198
199 void
200 scanwins(ScreenInfo *s)
201 {
202 unsigned int i, nwins;
203 Client *c;
204 Window dw1, dw2, *wins;
205 XWindowAttributes attr;
206
207 XQueryTree(dpy, s->root, &dw1, &dw2, &wins, &nwins);
208 for(i = 0; i < nwins; i++){
209 XGetWindowAttributes(dpy, wins[i], &attr);
210 if(attr.override_redirect || wins[i] == s->menuwin)
211 continue;
212 c = getclient(wins[i], 1);
213 if(c != 0 && c->window == wins[i] && !c->init){
214 c->x = attr.x;
215 c->y = attr.y;
216 c->dx = attr.width;
217 c->dy = attr.height;
218 c->border = attr.border_width;
219 c->screen = s;
220 c->parent = s->root;
221 if(attr.map_state == IsViewable)
222 manage(c, 1);
223 }
224 }
225 XFree((void *) wins); /* cast is to shut stoopid compiler up */
226 }
227
228 void
229 gettrans(Client *c)
230 {
231 Window trans;
232
233 trans = None;
234 if(XGetTransientForHint(dpy, c->window, &trans) != 0)
235 c->trans = trans;
236 else
237 c->trans = None;
238 }
239
240 void
241 withdraw(Client *c)
242 {
243 XUnmapWindow(dpy, c->parent);
244 XReparentWindow(dpy, c->window, c->screen->root, c->x, c->y);
245 XRemoveFromSaveSet(dpy, c->window);
246 setstate(c, WithdrawnState);
247
248 /* flush any errors */
249 ignore_badwindow = 1;
250 XSync(dpy, False);
251 ignore_badwindow = 0;
252 }
253
254 static void
255 installcmap(ScreenInfo *s, Colormap cmap)
256 {
257 if(cmap == None)
258 XInstallColormap(dpy, s->def_cmap);
259 else
260 XInstallColormap(dpy, cmap);
261 }
262
263 void
264 cmapfocus(Client *c)
265 {
266 int i, found;
267 Client *cc;
268
269 if(c == 0)
270 return;
271 else if(c->ncmapwins != 0){
272 found = 0;
273 for(i = c->ncmapwins-1; i >= 0; i--){
274 installcmap(c->screen, c->wmcmaps[i]);
275 if(c->cmapwins[i] == c->window)
276 found++;
277 }
278 if(!found)
279 installcmap(c->screen, c->cmap);
280 }
281 else if(c->trans != None && (cc = getclient(c->trans, 0)) != 0 && cc->ncmapwins != 0)
282 cmapfocus(cc);
283 else
284 installcmap(c->screen, c->cmap);
285 }
286
287 void
288 cmapnofocus(ScreenInfo *s)
289 {
290 installcmap(s, None);
291 }
292
293 void
294 getcmaps(Client *c)
295 {
296 int n, i;
297 Window *cw;
298 XWindowAttributes attr;
299
300 if(!c->init){
301 ignore_badwindow = 1;
302 XGetWindowAttributes(dpy, c->window, &attr);
303 c->cmap = attr.colormap;
304 XSync(dpy, False);
305 ignore_badwindow = 0;
306 }
307
308 n = _getprop(c->window, wm_colormaps, XA_WINDOW, 100L, (void*)&cw);
309 if(c->ncmapwins != 0){
310 XFree((char *)c->cmapwins);
311 free((char *)c->wmcmaps);
312 }
313 if(n <= 0){
314 c->ncmapwins = 0;
315 return;
316 }
317
318 c->ncmapwins = n;
319 c->cmapwins = cw;
320
321 c->wmcmaps = (Colormap*)malloc(n*sizeof(Colormap));
322 for(i = 0; i < n; i++){
323 if(cw[i] == c->window)
324 c->wmcmaps[i] = c->cmap;
325 else {
326 /* flush any errors (e.g., caused by mozilla tabs) */
327 ignore_badwindow = 1;
328 XSelectInput(dpy, cw[i], ColormapChangeMask);
329 XGetWindowAttributes(dpy, cw[i], &attr);
330 c->wmcmaps[i] = attr.colormap;
331 XSync(dpy, False);
332 ignore_badwindow = 0;
333 }
334 }
335 }
336
337 void
338 setlabel(Client *c)
339 {
340 char *label, *p;
341
342 if(c->iconname != 0)
343 label = c->iconname;
344 else if(c->name != 0)
345 label = c->name;
346 else if(c->instance != 0)
347 label = c->instance;
348 else if(c->class != 0)
349 label = c->class;
350 else
351 label = "no label";
352 if((p = index(label, ':')) != 0)
353 *p = '\0';
354 c->label = label;
355 }
356
357 #ifdef SHAPE
358 void
359 setshape(Client *c)
360 {
361 int n, order;
362 XRectangle *rect;
363
364 /* don't try to add a border if the window is non-rectangular */
365 rect = XShapeGetRectangles(dpy, c->window, ShapeBounding, &n, &order);
366 if(n > 1)
367 XShapeCombineShape(dpy, c->parent, ShapeBounding, BORDER, BORDER,
368 c->window, ShapeBounding, ShapeSet);
369 XFree((void*)rect);
370 }
371 #endif
372
373 int
374 _getprop(Window w, Atom a, Atom type, long len, unsigned char **p)
375 {
376 Atom real_type;
377 int format;
378 unsigned long n, extra;
379 int status;
380
381 status = XGetWindowProperty(dpy, w, a, 0L, len, False, type, &real_type, &format, &n, &extra, p);
382 if(status != Success || *p == 0)
383 return -1;
384 if(n == 0)
385 XFree((void*) *p);
386 /* could check real_type, format, extra here... */
387 return n;
388 }
389
390 char *
391 getprop(Window w, Atom a)
392 {
393 unsigned char *p;
394
395 if(_getprop(w, a, XA_STRING, 100L, &p) <= 0)
396 return 0;
397 return (char *)p;
398 }
399
400 int
401 get1prop(Window w, Atom a, Atom type)
402 {
403 char **p, *x;
404
405 if(_getprop(w, a, type, 1L, (void*)&p) <= 0)
406 return 0;
407 x = *p;
408 XFree((void*) p);
409 return (int)(uintptr_t)x;
410 }
411
412 Window
413 getwprop(Window w, Atom a)
414 {
415 return get1prop(w, a, XA_WINDOW);
416 }
417
418 int
419 getiprop(Window w, Atom a)
420 {
421 return get1prop(w, a, XA_INTEGER);
422 }
423
424 void
425 setstate(Client *c, int state)
426 {
427 long data[2];
428
429 data[0] = (long) state;
430 data[1] = (long) None;
431
432 c->state = state;
433 XChangeProperty(dpy, c->window, wm_state, wm_state, 32,
434 PropModeReplace, (unsigned char *)data, 2);
435 }
436
437 int
438 getstate(Window w, int *state)
439 {
440 long *p = 0;
441
442 if(_getprop(w, wm_state, wm_state, 2L, (void*)&p) <= 0)
443 return 0;
444
445 *state = (int) *p;
446 XFree((char *) p);
447 return 1;
448 }
449
450 void
451 getproto(Client *c)
452 {
453 Atom *p;
454 int i;
455 long n;
456 Window w;
457
458 w = c->window;
459 c->proto = 0;
460 if((n = _getprop(w, wm_protocols, XA_ATOM, 20L, (void*)&p)) <= 0)
461 return;
462
463 for(i = 0; i < n; i++)
464 if(p[i] == wm_delete)
465 c->proto |= Pdelete;
466 else if(p[i] == wm_take_focus)
467 c->proto |= Ptakefocus;
468 else if(p[i] == wm_lose_focus)
469 c->proto |= Plosefocus;
470
471 XFree((char *) p);
472 }