aewl: 4aa632b6ba66 event.c

aewl

view event.c @ 292:4aa632b6ba66

changed main event loop

author	Anselm R.Garbe <arg@10ksloc.org>
date	Tue, 15 Aug 2006 07:31:42 +0200
parents	8e6e0aa5e2ae
children	1b45d6f14fca

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 movemouse(Client *c)

25 {

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

27 unsigned int dui;

28 Window dummy;

29 XEvent ev;

31 ocx = c->x;

32 ocy = c->y;

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

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

35 return;

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

37 for(;;) {

38 XMaskEvent(dpy, MOUSEMASK | ExposureMask, &ev);

39 switch (ev.type) {

40 default: break;

41 case Expose:

42 handler[Expose](&ev);

43 break;

44 case MotionNotify:

45 XSync(dpy, False);

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

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

48 resize(c, False, TopLeft);

49 break;

50 case ButtonRelease:

51 XUngrabPointer(dpy, CurrentTime);

52 return;

53 }

54 }

55 }

57 static void

58 resizemouse(Client *c)

59 {

60 int ocx, ocy;

61 int nw, nh;

62 Corner sticky;

63 XEvent ev;

65 ocx = c->x;

66 ocy = c->y;

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

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

69 return;

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

71 for(;;) {

72 XMaskEvent(dpy, MOUSEMASK | ExposureMask, &ev);

73 switch(ev.type) {

74 default: break;

75 case Expose:

76 handler[Expose](&ev);

77 break;

78 case MotionNotify:

79 XSync(dpy, False);

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

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

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

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

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

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

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

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

88 else

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

90 resize(c, True, sticky);

91 break;

92 case ButtonRelease:

93 XUngrabPointer(dpy, CurrentTime);

94 return;

95 }

96 }

97 }

99 static void

100 buttonpress(XEvent *e)

101 {

102 int x;

103 Arg a;

104 Client *c;

105 XButtonPressedEvent *ev = &e->xbutton;

106

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

108 x = 0;

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

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

111 if(ev->x < x) {

112 if(ev->button == Button1)

113 view(&a);

114 else if(ev->button == Button3)

115 toggleview(&a);

116 return;

117 }

118 }

119 }

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

121 focus(c);

122 switch(ev->button) {

123 default:

124 break;

125 case Button1:

126 if(!c->ismax && (arrange == dofloat || c->isfloat)) {

127 restack(c);

128 movemouse(c);

129 }

130 break;

131 case Button2:

132 zoom(NULL);

133 break;

134 case Button3:

135 if(!c->ismax && (arrange == dofloat || c->isfloat)) {

136 restack(c);

137 resizemouse(c);

138 }

139 break;

140 }

141 }

142 }

143

144 static void

145 configurerequest(XEvent *e)

146 {

147 unsigned long newmask;

148 Client *c;

149 XConfigureRequestEvent *ev = &e->xconfigurerequest;

150 XEvent synev;

151 XWindowChanges wc;

152

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

154 gravitate(c, True);

155 if(ev->value_mask & CWX)

156 c->x = ev->x;

157 if(ev->value_mask & CWY)

158 c->y = ev->y;

159 if(ev->value_mask & CWWidth)

160 c->w = ev->width;

161 if(ev->value_mask & CWHeight)

162 c->h = ev->height;

163 if(ev->value_mask & CWBorderWidth)

164 c->border = ev->border_width;

165 gravitate(c, False);

166 wc.x = c->x;

167 wc.y = c->y;

168 wc.width = c->w;

169 wc.height = c->h;

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

171 if(newmask)

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

173 else {

174 synev.type = ConfigureNotify;

175 synev.xconfigure.display = dpy;

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

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

178 synev.xconfigure.x = c->x;

179 synev.xconfigure.y = c->y;

180 synev.xconfigure.width = c->w;

181 synev.xconfigure.height = c->h;

182 synev.xconfigure.border_width = c->border;

183 synev.xconfigure.above = None;

184 /* Send synthetic ConfigureNotify */

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

186 }

187 XSync(dpy, False);

188 if(c->isfloat)

189 resize(c, False, TopLeft);

190 else

191 arrange(NULL);

192 }

193 else {

194 wc.x = ev->x;

195 wc.y = ev->y;

196 wc.width = ev->width;

197 wc.height = ev->height;

198 wc.border_width = ev->border_width;

199 wc.sibling = ev->above;

200 wc.stack_mode = ev->detail;

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

202 XSync(dpy, False);

203 }

204 }

205

206 static void

207 destroynotify(XEvent *e)

208 {

209 Client *c;

210 XDestroyWindowEvent *ev = &e->xdestroywindow;

211

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

213 unmanage(c);

214 }

215

216 static void

217 enternotify(XEvent *e)

218 {

219 Client *c;

220 XCrossingEvent *ev = &e->xcrossing;

221

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

223 return;

224

225 if((c = getclient(ev->window)) || (c = getctitle(ev->window)))

226 focus(c);

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

228 issel = True;

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

230 drawall();

231 }

232 }

233

234 static void

235 expose(XEvent *e)

236 {

237 Client *c;

238 XExposeEvent *ev = &e->xexpose;

239

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

241 if(barwin == ev->window)

242 drawstatus();

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

244 drawtitle(c);

245 }

246 }

247

248 static void

249 keypress(XEvent *e)

250 {

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

252 unsigned int i;

253 KeySym keysym;

254 XKeyEvent *ev = &e->xkey;

255

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

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

258 if(keysym == key[i].keysym &&

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

260 {

261 if(key[i].func)

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

263 return;

264 }

265 }

266 }

267

268 static void

269 leavenotify(XEvent *e)

270 {

271 XCrossingEvent *ev = &e->xcrossing;

272

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

274 issel = False;

275 drawall();

276 }

277 }

278

279 static void

280 mappingnotify(XEvent *e)

281 {

282 XMappingEvent *ev = &e->xmapping;

283

284 XRefreshKeyboardMapping(ev);

285 if(ev->request == MappingKeyboard)

286 grabkeys();

287 }

288

289 static void

290 maprequest(XEvent *e)

291 {

292 static XWindowAttributes wa;

293 XMapRequestEvent *ev = &e->xmaprequest;

294

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

296 return;

297

298 if(wa.override_redirect) {

299 XSelectInput(dpy, ev->window,

300 (StructureNotifyMask | PropertyChangeMask));

301 return;

302 }

303

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

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

306 }

307

308 static void

309 propertynotify(XEvent *e)

310 {

311 Client *c;

312 Window trans;

313 XPropertyEvent *ev = &e->xproperty;

314

315 if(ev->state == PropertyDelete)

316 return; /* ignore */

317

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

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

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

321 return;

322 }

323 switch (ev->atom) {

324 default: break;

325 case XA_WM_TRANSIENT_FOR:

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

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

328 arrange(NULL);

329 break;

330 case XA_WM_NORMAL_HINTS:

331 setsize(c);

332 break;

333 }

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

335 settitle(c);

336 drawtitle(c);

337 }

338 }

339 }

340

341 static void

342 unmapnotify(XEvent *e)

343 {

344 Client *c;

345 XUnmapEvent *ev = &e->xunmap;

346

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

348 unmanage(c);

349 }

350

351 /* extern */

352

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

354 [ButtonPress] = buttonpress,

355 [ConfigureRequest] = configurerequest,

356 [DestroyNotify] = destroynotify,

357 [EnterNotify] = enternotify,

358 [LeaveNotify] = leavenotify,

359 [Expose] = expose,

360 [KeyPress] = keypress,

361 [MappingNotify] = mappingnotify,

362 [MapRequest] = maprequest,

363 [PropertyNotify] = propertynotify,

364 [UnmapNotify] = unmapnotify

365 };

366

367 void

368 grabkeys()

369 {

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

371 unsigned int i;

372 KeyCode code;

373

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

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

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

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

378 GrabModeAsync, GrabModeAsync);

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

380 GrabModeAsync, GrabModeAsync);

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

382 GrabModeAsync, GrabModeAsync);

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

384 GrabModeAsync, GrabModeAsync);

385 }

386 }

387

388 void

389 procevent()

390 {

391 XEvent ev;

392

393 while(XPending(dpy)) {

394 XNextEvent(dpy, &ev);

395 if(handler[ev.type])

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

397 }

398 }

399