dwm-meillo: 4e3e22673073 client.c

dwm-meillo

view client.c @ 455:4e3e22673073

fixed some other comments, now also the code side seems to be at a level to be reviewed by experienced programmers

author	Anselm R. Garbe <arg@10kloc.org>
date	Mon, 11 Sep 2006 11:28:28 +0200
parents	026aba558fdf
children	9d23330a5268

line source

1 /*

2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>

3 * See LICENSE file for license details.

4 */

5 #include "dwm.h"

6 #include <stdlib.h>

7 #include <string.h>

8 #include <X11/Xatom.h>

9 #include <X11/Xutil.h>

11 /* static functions */

13 static void

14 detachstack(Client *c)

15 {

16 Client **tc;

17 for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);

18 *tc = c->snext;

19 }

21 static void

22 grabbuttons(Client *c, Bool focused)

23 {

24 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);

26 if(focused) {

27 XGrabButton(dpy, Button1, MODKEY, c->win, False, BUTTONMASK,

28 GrabModeAsync, GrabModeSync, None, None);

29 XGrabButton(dpy, Button1, MODKEY | LockMask, c->win, False, BUTTONMASK,

30 GrabModeAsync, GrabModeSync, None, None);

31 XGrabButton(dpy, Button1, MODKEY | numlockmask, c->win, False, BUTTONMASK,

32 GrabModeAsync, GrabModeSync, None, None);

33 XGrabButton(dpy, Button1, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,

34 GrabModeAsync, GrabModeSync, None, None);

36 XGrabButton(dpy, Button2, MODKEY, c->win, False, BUTTONMASK,

37 GrabModeAsync, GrabModeSync, None, None);

38 XGrabButton(dpy, Button2, MODKEY | LockMask, c->win, False, BUTTONMASK,

39 GrabModeAsync, GrabModeSync, None, None);

40 XGrabButton(dpy, Button2, MODKEY | numlockmask, c->win, False, BUTTONMASK,

41 GrabModeAsync, GrabModeSync, None, None);

42 XGrabButton(dpy, Button2, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,

43 GrabModeAsync, GrabModeSync, None, None);

45 XGrabButton(dpy, Button3, MODKEY, c->win, False, BUTTONMASK,

46 GrabModeAsync, GrabModeSync, None, None);

47 XGrabButton(dpy, Button3, MODKEY | LockMask, c->win, False, BUTTONMASK,

48 GrabModeAsync, GrabModeSync, None, None);

49 XGrabButton(dpy, Button3, MODKEY | numlockmask, c->win, False, BUTTONMASK,

50 GrabModeAsync, GrabModeSync, None, None);

51 XGrabButton(dpy, Button3, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,

52 GrabModeAsync, GrabModeSync, None, None);

53 }

54 else

55 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, BUTTONMASK,

56 GrabModeAsync, GrabModeSync, None, None);

58 }

60 static void

61 resizetitle(Client *c)

62 {

63 c->tw = textw(c->name);

64 if(c->tw > c->w)

65 c->tw = c->w + 2;

66 c->tx = c->x + c->w - c->tw + 2;

67 c->ty = c->y;

68 if(isvisible(c))

69 XMoveResizeWindow(dpy, c->twin, c->tx, c->ty, c->tw, c->th);

70 else

71 XMoveResizeWindow(dpy, c->twin, c->tx + 2 * sw, c->ty, c->tw, c->th);

73 }

75 static int

76 xerrordummy(Display *dsply, XErrorEvent *ee)

77 {

78 return 0;

79 }

81 /* extern functions */

83 void

84 ban(Client *c)

85 {

86 XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);

87 XMoveWindow(dpy, c->twin, c->tx + 2 * sw, c->ty);

88 }

90 void

91 focus(Client *c)

92 {

93 Client *old;

95 if(!issel)

96 return;

97 if(!sel)

98 sel = c;

99 else if(sel != c) {

100 if(maximized)

101 togglemax(NULL);

102 old = sel;

103 sel = c;

104 if(old) {

105 grabbuttons(old, False);

106 drawtitle(old);

107 }

108 }

109 if(c) {

110 detachstack(c);

111 c->snext = stack;

112 stack = c;

113 grabbuttons(c, True);

114 drawtitle(c);

115 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);

116 }

117 else

118 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);

119 }

120

121 Client *

122 getclient(Window w)

123 {

124 Client *c;

125

126 for(c = clients; c; c = c->next)

127 if(c->win == w)

128 return c;

129 return NULL;

130 }

131

132 Client *

133 getctitle(Window w)

134 {

135 Client *c;

136

137 for(c = clients; c; c = c->next)

138 if(c->twin == w)

139 return c;

140 return NULL;

141 }

142

143 void

144 gravitate(Client *c, Bool invert)

145 {

146 int dx = 0, dy = 0;

147

148 switch(c->grav) {

149 default:

150 break;

151 case StaticGravity:

152 case NorthWestGravity:

153 case NorthGravity:

154 case NorthEastGravity:

155 dy = c->border;

156 break;

157 case EastGravity:

158 case CenterGravity:

159 case WestGravity:

160 dy = -(c->h / 2) + c->border;

161 break;

162 case SouthEastGravity:

163 case SouthGravity:

164 case SouthWestGravity:

165 dy = -(c->h);

166 break;

167 }

168

169 switch (c->grav) {

170 default:

171 break;

172 case StaticGravity:

173 case NorthWestGravity:

174 case WestGravity:

175 case SouthWestGravity:

176 dx = c->border;

177 break;

178 case NorthGravity:

179 case CenterGravity:

180 case SouthGravity:

181 dx = -(c->w / 2) + c->border;

182 break;

183 case NorthEastGravity:

184 case EastGravity:

185 case SouthEastGravity:

186 dx = -(c->w + c->border);

187 break;

188 }

189

190 if(invert) {

191 dx = -dx;

192 dy = -dy;

193 }

194 c->x += dx;

195 c->y += dy;

196 }

197

198 void

199 killclient(Arg *arg)

200 {

201 if(!sel)

202 return;

203 if(sel->proto & PROTODELWIN)

204 sendevent(sel->win, wmatom[WMProtocols], wmatom[WMDelete]);

205 else

206 XKillClient(dpy, sel->win);

207 }

208

209 void

210 manage(Window w, XWindowAttributes *wa)

211 {

212 Client *c;

213 Window trans;

214 XSetWindowAttributes twa;

215

216 c = emallocz(sizeof(Client));

217 c->tags = emallocz(ntags * sizeof(Bool));

218 c->win = w;

219 c->x = c->tx = wa->x;

220 c->y = c->ty = wa->y;

221 c->w = c->tw = wa->width;

222 c->h = wa->height;

223 c->th = bh;

224

225 c->border = 0;

226 updatesize(c);

227

228 if(c->x + c->w + 2 > sw)

229 c->x = sw - c->w - 2;

230 if(c->x < 0)

231 c->x = 0;

232 if(c->y + c->h + 2 > sh)

233 c->y = sh - c->h - 2;

234 if(c->h != sh && c->y < bh)

235 c->y = bh;

236

237 c->proto = getproto(c->win);

238 XSelectInput(dpy, c->win,

239 StructureNotifyMask | PropertyChangeMask | EnterWindowMask);

240 XGetTransientForHint(dpy, c->win, &trans);

241 twa.override_redirect = 1;

242 twa.background_pixmap = ParentRelative;

243 twa.event_mask = ExposureMask | EnterWindowMask;

244

245 c->twin = XCreateWindow(dpy, root, c->tx, c->ty, c->tw, c->th,

246 0, DefaultDepth(dpy, screen), CopyFromParent,

247 DefaultVisual(dpy, screen),

248 CWOverrideRedirect | CWBackPixmap | CWEventMask, &twa);

249

250 grabbuttons(c, False);

251 settags(c, getclient(trans));

252 if(!c->isfloat)

253 c->isfloat = trans

254 || (c->maxw && c->minw &&

255 c->maxw == c->minw && c->maxh == c->minh);

256

257 if(clients)

258 clients->prev = c;

259 c->next = clients;

260 c->snext = stack;

261 stack = clients = c;

262

263 updatetitle(c);

264 ban(c);

265 XMapWindow(dpy, c->win);

266 XMapWindow(dpy, c->twin);

267 if(isvisible(c))

268 focus(c);

269 arrange(NULL);

270 }

271

272 void

273 resize(Client *c, Bool sizehints, Corner sticky)

274 {

275 int bottom = c->y + c->h;

276 int right = c->x + c->w;

277 XWindowChanges wc;

278

279 if(sizehints) {

280 if(c->incw)

281 c->w -= (c->w - c->basew) % c->incw;

282 if(c->inch)

283 c->h -= (c->h - c->baseh) % c->inch;

284 if(c->minw && c->w < c->minw)

285 c->w = c->minw;

286 if(c->minh && c->h < c->minh)

287 c->h = c->minh;

288 if(c->maxw && c->w > c->maxw)

289 c->w = c->maxw;

290 if(c->maxh && c->h > c->maxh)

291 c->h = c->maxh;

292 }

293 if(sticky == TopRight || sticky == BotRight)

294 c->x = right - c->w;

295 if(sticky == BotLeft || sticky == BotRight)

296 c->y = bottom - c->h;

297

298 resizetitle(c);

299 wc.x = c->x;

300 wc.y = c->y;

301 wc.width = c->w;

302 wc.height = c->h;

303 if(c->w == sw && c->h == sh)

304 wc.border_width = 0;

305 else

306 wc.border_width = 1;

307 XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc);

308 XSync(dpy, False);

309 }

310

311 void

312 updatesize(Client *c)

313 {

314 long msize;

315 XSizeHints size;

316

317 if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)

318 size.flags = PSize;

319 c->flags = size.flags;

320 if(c->flags & PBaseSize) {

321 c->basew = size.base_width;

322 c->baseh = size.base_height;

323 }

324 else

325 c->basew = c->baseh = 0;

326 if(c->flags & PResizeInc) {

327 c->incw = size.width_inc;

328 c->inch = size.height_inc;

329 }

330 else

331 c->incw = c->inch = 0;

332 if(c->flags & PMaxSize) {

333 c->maxw = size.max_width;

334 c->maxh = size.max_height;

335 }

336 else

337 c->maxw = c->maxh = 0;

338 if(c->flags & PMinSize) {

339 c->minw = size.min_width;

340 c->minh = size.min_height;

341 }

342 else

343 c->minw = c->minh = 0;

344 if(c->flags & PWinGravity)

345 c->grav = size.win_gravity;

346 else

347 c->grav = NorthWestGravity;

348 }

349

350 void

351 updatetitle(Client *c)

352 {

353 char **list = NULL;

354 int n;

355 XTextProperty name;

356

357 name.nitems = 0;

358 c->name[0] = 0;

359 XGetTextProperty(dpy, c->win, &name, netatom[NetWMName]);

360 if(!name.nitems)

361 XGetWMName(dpy, c->win, &name);

362 if(!name.nitems)

363 return;

364 if(name.encoding == XA_STRING)

365 strncpy(c->name, (char *)name.value, sizeof(c->name));

366 else {

367 if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success

368 && n > 0 && *list)

369 {

370 strncpy(c->name, *list, sizeof(c->name));

371 XFreeStringList(list);

372 }

373 }

374 XFree(name.value);

375 resizetitle(c);

376 }

377

378 void

379 togglemax(Arg *arg)

380 {

381 int ox, oy, ow, oh;

382 Client *c;

383 XEvent ev;

384

385 if(!sel)

386 return;

387

388 if((maximized = !maximized)) {

389 ox = sel->x;

390 oy = sel->y;

391 ow = sel->w;

392 oh = sel->h;

393 sel->x = sx;

394 sel->y = sy + bh;

395 sel->w = sw - 2;

396 sel->h = sh - 2 - bh;

397

398 restack();

399 for(c = getnext(clients); c; c = getnext(c->next))

400 if(c != sel)

401 ban(c);

402 resize(sel, arrange == dofloat, TopLeft);

403

404 sel->x = ox;

405 sel->y = oy;

406 sel->w = ow;

407 sel->h = oh;

408 }

409 else

410 arrange(NULL);

411 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));

412 }

413

414 void

415 unmanage(Client *c)

416 {

417 Client *nc;

418

419 XGrabServer(dpy);

420 XSetErrorHandler(xerrordummy);

421

422 detach(c);

423 detachstack(c);

424 if(sel == c) {

425 for(nc = stack; nc && !isvisible(nc); nc = nc->snext);

426 focus(nc);

427 }

428

429 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);

430 XDestroyWindow(dpy, c->twin);

431

432 free(c->tags);

433 free(c);

434

435 XSync(dpy, False);

436 XSetErrorHandler(xerror);

437 XUngrabServer(dpy);

438 arrange(NULL);

439 }