aewl: 3e4596240abb event.c

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view event.c @ 476:3e4596240abb

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author	arg@mmvi
date	Fri, 22 Sep 2006 09:43:21 +0200
parents	2d8af0d7920d
children	635b58a87d20

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 <X11/keysym.h>

8 #include <X11/Xatom.h>

10 /* static */

12 typedef struct {

13 unsigned long mod;

14 KeySym keysym;

15 void (*func)(Arg *arg);

16 Arg arg;

17 } Key;

19 KEYS

21 #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))

23 static void

24 synconfig(Client *c, int x, int y, int w, int h, unsigned int border) {

25 XEvent synev;

27 synev.type = ConfigureNotify;

28 synev.xconfigure.display = dpy;

29 synev.xconfigure.event = c->win;

30 synev.xconfigure.window = c->win;

31 synev.xconfigure.x = x;

32 synev.xconfigure.y = y;

33 synev.xconfigure.width = w;

34 synev.xconfigure.height = h;

35 synev.xconfigure.border_width = border;

36 synev.xconfigure.above = None;

37 XSendEvent(dpy, c->win, True, NoEventMask, &synev);

38 }

40 static void

41 movemouse(Client *c) {

42 int x1, y1, ocx, ocy, di;

43 unsigned int dui;

44 Window dummy;

45 XEvent ev;

47 ocx = c->x;

48 ocy = c->y;

49 if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,

50 None, cursor[CurMove], CurrentTime) != GrabSuccess)

51 return;

52 XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);

53 for(;;) {

54 XMaskEvent(dpy, MOUSEMASK | ExposureMask | StructureNotifyMask, &ev);

55 switch (ev.type) {

56 default:

57 break;

58 case ConfigureRequest:

59 synconfig(c, c->x, c->y, c->w, c->h, ev.xconfigure.border_width);

60 XSync(dpy, False);

61 break;

62 case Expose:

63 handler[Expose](&ev);

64 break;

65 case MotionNotify:

66 XSync(dpy, False);

67 c->x = ocx + (ev.xmotion.x - x1);

68 c->y = ocy + (ev.xmotion.y - y1);

69 resize(c, False, TopLeft);

70 break;

71 case ButtonRelease:

72 XUngrabPointer(dpy, CurrentTime);

73 return;

74 case DestroyNotify:

75 case UnmapNotify:

76 XUngrabPointer(dpy, CurrentTime);

77 handler[ev.type](&ev);

78 return;

79 }

80 }

81 }

83 static void

84 resizemouse(Client *c) {

85 int ocx, ocy;

86 int nw, nh;

87 Corner sticky;

88 XEvent ev;

90 ocx = c->x;

91 ocy = c->y;

92 if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,

93 None, cursor[CurResize], CurrentTime) != GrabSuccess)

94 return;

95 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w, c->h);

96 for(;;) {

97 XMaskEvent(dpy, MOUSEMASK | ExposureMask | StructureNotifyMask, &ev);

98 switch(ev.type) {

99 default:

100 break;

101 case ConfigureRequest:

102 synconfig(c, c->x, c->y, c->w, c->h, ev.xconfigure.border_width);

103 XSync(dpy, False);

104 break;

105 case Expose:

106 handler[Expose](&ev);

107 break;

108 case MotionNotify:

109 XSync(dpy, False);

110 if((nw = abs(ocx - ev.xmotion.x)))

111 c->w = abs(ocx - ev.xmotion.x);

112 if((nh = abs(ocy - ev.xmotion.y)))

113 c->h = abs(ocy - ev.xmotion.y);

114 c->x = (ocx <= ev.xmotion.x) ? ocx : ocx - c->w;

115 c->y = (ocy <= ev.xmotion.y) ? ocy : ocy - c->h;

116 if(ocx <= ev.xmotion.x)

117 sticky = (ocy <= ev.xmotion.y) ? TopLeft : BotLeft;

118 else

119 sticky = (ocy <= ev.xmotion.y) ? TopRight : BotRight;

120 resize(c, True, sticky);

121 break;

122 case ButtonRelease:

123 XUngrabPointer(dpy, CurrentTime);

124 return;

125 case DestroyNotify:

126 case UnmapNotify:

127 XUngrabPointer(dpy, CurrentTime);

128 handler[ev.type](&ev);

129 return;

130 }

131 }

132 }

133

134 static void

135 buttonpress(XEvent *e) {

136 int x;

137 Arg a;

138 Client *c;

139 XButtonPressedEvent *ev = &e->xbutton;

140

141 if(barwin == ev->window) {

142 x = 0;

143 for(a.i = 0; a.i < ntags; a.i++) {

144 x += textw(tags[a.i]);

145 if(ev->x < x) {

146 if(ev->button == Button1) {

147 if(ev->state & MODKEY)

148 tag(&a);

149 else

150 view(&a);

151 }

152 else if(ev->button == Button3) {

153 if(ev->state & MODKEY)

154 toggletag(&a);

155 else

156 toggleview(&a);

157 }

158 return;

159 }

160 }

161 if(ev->x < x + bmw) {

162 if(ev->button == Button1)

163 togglemode(NULL);

164 }

165 }

166 else if((c = getclient(ev->window))) {

167 focus(c);

168 if(CLEANMASK(ev->state) != MODKEY)

169 return;

170 if(ev->button == Button1 && (arrange == dofloat || c->isfloat)) {

171 restack(c);

172 movemouse(c);

173 }

174 else if(ev->button == Button2)

175 zoom(NULL);

176 else if(ev->button == Button3 && (arrange == dofloat || c->isfloat)) {

177 restack(c);

178 resizemouse(c);

179 }

180 }

181 }

182

183 static void

184 configurerequest(XEvent *e) {

185 unsigned long newmask;

186 Client *c;

187 XConfigureRequestEvent *ev = &e->xconfigurerequest;

188 XWindowChanges wc;

189

190 if((c = getclient(ev->window))) {

191 if((c == sel) && !c->isfloat && (arrange != dofloat)) {

192 synconfig(c, sx, sy + bh, sw - 2, sh - 2 - bh, ev->border_width);

193 XSync(dpy, False);

194 return;

195 }

196 gravitate(c, True);

197 if(ev->value_mask & CWX)

198 c->x = ev->x;

199 if(ev->value_mask & CWY)

200 c->y = ev->y;

201 if(ev->value_mask & CWWidth)

202 c->w = ev->width;

203 if(ev->value_mask & CWHeight)

204 c->h = ev->height;

205 if(ev->value_mask & CWBorderWidth)

206 c->border = ev->border_width;

207 gravitate(c, False);

208 wc.x = c->x;

209 wc.y = c->y;

210 wc.width = c->w;

211 wc.height = c->h;

212 newmask = ev->value_mask & (~(CWSibling | CWStackMode | CWBorderWidth));

213 if(newmask)

214 XConfigureWindow(dpy, c->win, newmask, &wc);

215 else

216 synconfig(c, c->x, c->y, c->w, c->h, c->border);

217 XSync(dpy, False);

218 if(c->isfloat)

219 resize(c, False, TopLeft);

220 else

221 arrange(NULL);

222 }

223 else {

224 wc.x = ev->x;

225 wc.y = ev->y;

226 wc.width = ev->width;

227 wc.height = ev->height;

228 wc.border_width = ev->border_width;

229 wc.sibling = ev->above;

230 wc.stack_mode = ev->detail;

231 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);

232 XSync(dpy, False);

233 }

234 }

235

236 static void

237 destroynotify(XEvent *e) {

238 Client *c;

239 XDestroyWindowEvent *ev = &e->xdestroywindow;

240

241 if((c = getclient(ev->window)))

242 unmanage(c);

243 }

244

245 static void

246 enternotify(XEvent *e) {

247 Client *c;

248 XCrossingEvent *ev = &e->xcrossing;

249

250 if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)

251 return;

252

253 if(((c = getclient(ev->window)) || (c = getctitle(ev->window))) && isvisible(c))

254 focus(c);

255 else if(ev->window == root) {

256 issel = True;

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

258 drawall();

259 }

260 }

261

262 static void

263 expose(XEvent *e) {

264 Client *c;

265 XExposeEvent *ev = &e->xexpose;

266

267 if(ev->count == 0) {

268 if(barwin == ev->window)

269 drawstatus();

270 else if((c = getctitle(ev->window)))

271 drawtitle(c);

272 }

273 }

274

275 static void

276 keypress(XEvent *e) {

277 static unsigned int len = sizeof(key) / sizeof(key[0]);

278 unsigned int i;

279 KeySym keysym;

280 XKeyEvent *ev = &e->xkey;

281

282 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);

283 for(i = 0; i < len; i++) {

284 if(keysym == key[i].keysym

285 && CLEANMASK(key[i].mod) == CLEANMASK(ev->state))

286 {

287 if(key[i].func)

288 key[i].func(&key[i].arg);

289 return;

290 }

291 }

292 }

293

294 static void

295 leavenotify(XEvent *e) {

296 XCrossingEvent *ev = &e->xcrossing;

297

298 if((ev->window == root) && !ev->same_screen) {

299 issel = False;

300 drawall();

301 }

302 }

303

304 static void

305 mappingnotify(XEvent *e) {

306 XMappingEvent *ev = &e->xmapping;

307

308 XRefreshKeyboardMapping(ev);

309 if(ev->request == MappingKeyboard)

310 grabkeys();

311 }

312

313 static void

314 maprequest(XEvent *e) {

315 static XWindowAttributes wa;

316 XMapRequestEvent *ev = &e->xmaprequest;

317

318 if(!XGetWindowAttributes(dpy, ev->window, &wa))

319 return;

320

321 if(wa.override_redirect) {

322 XSelectInput(dpy, ev->window,

323 (StructureNotifyMask | PropertyChangeMask));

324 return;

325 }

326

327 if(!getclient(ev->window))

328 manage(ev->window, &wa);

329 }

330

331 static void

332 propertynotify(XEvent *e) {

333 Client *c;

334 Window trans;

335 XPropertyEvent *ev = &e->xproperty;

336

337 if(ev->state == PropertyDelete)

338 return; /* ignore */

339

340 if((c = getclient(ev->window))) {

341 if(ev->atom == wmatom[WMProtocols]) {

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

343 return;

344 }

345 switch (ev->atom) {

346 default: break;

347 case XA_WM_TRANSIENT_FOR:

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

349 if(!c->isfloat && (c->isfloat = (trans != 0)))

350 arrange(NULL);

351 break;

352 case XA_WM_NORMAL_HINTS:

353 updatesize(c);

354 break;

355 }

356 if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {

357 updatetitle(c);

358 drawtitle(c);

359 }

360 }

361 }

362

363 static void

364 unmapnotify(XEvent *e) {

365 Client *c;

366 XUnmapEvent *ev = &e->xunmap;

367

368 if((c = getclient(ev->window)))

369 unmanage(c);

370 }

371

372 /* extern */

373

374 void (*handler[LASTEvent]) (XEvent *) = {

375 [ButtonPress] = buttonpress,

376 [ConfigureRequest] = configurerequest,

377 [DestroyNotify] = destroynotify,

378 [EnterNotify] = enternotify,

379 [LeaveNotify] = leavenotify,

380 [Expose] = expose,

381 [KeyPress] = keypress,

382 [MappingNotify] = mappingnotify,

383 [MapRequest] = maprequest,

384 [PropertyNotify] = propertynotify,

385 [UnmapNotify] = unmapnotify

386 };

387

388 void

389 grabkeys() {

390 static unsigned int len = sizeof(key) / sizeof(key[0]);

391 unsigned int i;

392 KeyCode code;

393

394 XUngrabKey(dpy, AnyKey, AnyModifier, root);

395 for(i = 0; i < len; i++) {

396 code = XKeysymToKeycode(dpy, key[i].keysym);

397 XGrabKey(dpy, code, key[i].mod, root, True,

398 GrabModeAsync, GrabModeAsync);

399 XGrabKey(dpy, code, key[i].mod | LockMask, root, True,

400 GrabModeAsync, GrabModeAsync);

401 XGrabKey(dpy, code, key[i].mod | numlockmask, root, True,

402 GrabModeAsync, GrabModeAsync);

403 XGrabKey(dpy, code, key[i].mod | numlockmask | LockMask, root, True,

404 GrabModeAsync, GrabModeAsync);

405 }

406 }

407

408 void

409 procevent() {

410 XEvent ev;

411

412 while(XPending(dpy)) {

413 XNextEvent(dpy, &ev);

414 if(handler[ev.type])

415 (handler[ev.type])(&ev); /* call handler */

416 }

417 }