aewl: 498b86c72a40 event.c

aewl

view event.c @ 659:498b86c72a40

preserving c1->snext and c2->snext in swap() as well.

author	Anselm R. Garbe <arg@suckless.org>
date	Fri, 05 Jan 2007 21:52:17 +0100
parents	1ed8c40dde36
children	7672a1041218

line source

1 /* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>

2 * See LICENSE file for license details.

3 */

4 #include "dwm.h"

5 #include <stdlib.h>

6 #include <X11/keysym.h>

7 #include <X11/Xatom.h>

9 /* static */

11 typedef struct {

12 unsigned long mod;

13 KeySym keysym;

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

15 Arg arg;

16 } Key;

18 KEYS

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

21 #define MOUSEMASK (BUTTONMASK | PointerMotionMask)

23 static void

24 movemouse(Client *c) {

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

26 unsigned int dui;

27 Window dummy;

28 XEvent ev;

30 ocx = c->x;

31 ocy = c->y;

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

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

34 return;

35 c->ismax = False;

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

37 for(;;) {

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

39 switch (ev.type) {

40 case ButtonRelease:

41 resize(c, True, TopLeft);

42 XUngrabPointer(dpy, CurrentTime);

43 return;

44 case Expose:

45 handler[Expose](&ev);

46 break;

47 case MotionNotify:

48 XSync(dpy, False);

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

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

51 if(abs(wax + c->x) < SNAP)

52 c->x = wax;

53 else if(abs((wax + waw) - (c->x + c->w)) < SNAP)

54 c->x = wax + waw - c->w - 2 * BORDERPX;

55 if(abs(way - c->y) < SNAP)

56 c->y = way;

57 else if(abs((way + wah) - (c->y + c->h)) < SNAP)

58 c->y = way + wah - c->h - 2 * BORDERPX;

59 resize(c, False, TopLeft);

60 break;

61 }

62 }

63 }

65 static void

66 resizemouse(Client *c) {

67 int ocx, ocy;

68 int nw, nh;

69 Corner sticky;

70 XEvent ev;

72 ocx = c->x;

73 ocy = c->y;

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

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

76 return;

77 c->ismax = False;

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

79 for(;;) {

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

81 switch(ev.type) {

82 case ButtonRelease:

83 resize(c, True, TopLeft);

84 XUngrabPointer(dpy, CurrentTime);

85 return;

86 case Expose:

87 handler[Expose](&ev);

88 break;

89 case MotionNotify:

90 XSync(dpy, False);

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

92 c->w = nw;

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

94 c->h = nh;

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

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

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

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

99 else

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

101 resize(c, True, sticky);

102 break;

103 }

104 }

105 }

106

107 static void

108 buttonpress(XEvent *e) {

109 int x;

110 Arg a;

111 Client *c;

112 XButtonPressedEvent *ev = &e->xbutton;

113

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

115 x = 0;

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

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

118 if(ev->x < x) {

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

120 if(ev->state & MODKEY)

121 tag(&a);

122 else

123 view(&a);

124 }

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

126 if(ev->state & MODKEY)

127 toggletag(&a);

128 else

129 toggleview(&a);

130 }

131 return;

132 }

133 }

134 if((ev->x < x + bmw) && (ev->button == Button1))

135 togglemode(NULL);

136 }

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

138 focus(c);

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

140 return;

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

142 restack();

143 movemouse(c);

144 }

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

146 zoom(NULL);

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

148 !c->isfixed) {

149 restack();

150 resizemouse(c);

151 }

152 }

153 }

154

155 static void

156 configurerequest(XEvent *e) {

157 unsigned long newmask;

158 Client *c;

159 XConfigureRequestEvent *ev = &e->xconfigurerequest;

160 XWindowChanges wc;

161

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

163 c->ismax = False;

164 if(ev->value_mask & CWX)

165 c->x = ev->x;

166 if(ev->value_mask & CWY)

167 c->y = ev->y;

168 if(ev->value_mask & CWWidth)

169 c->w = ev->width;

170 if(ev->value_mask & CWHeight)

171 c->h = ev->height;

172 if(ev->value_mask & CWBorderWidth)

173 c->border = ev->border_width;

174 wc.x = c->x;

175 wc.y = c->y;

176 wc.width = c->w;

177 wc.height = c->h;

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

179 if(newmask)

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

181 else

182 configure(c);

183 XSync(dpy, False);

184 if(c->isfloat) {

185 resize(c, False, TopLeft);

186 if(!isvisible(c))

187 ban(c);

188 }

189 else

190 arrange();

191 }

192 else {

193 wc.x = ev->x;

194 wc.y = ev->y;

195 wc.width = ev->width;

196 wc.height = ev->height;

197 wc.border_width = ev->border_width;

198 wc.sibling = ev->above;

199 wc.stack_mode = ev->detail;

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

201 XSync(dpy, False);

202 }

203 }

204

205 static void

206 destroynotify(XEvent *e) {

207 Client *c;

208 XDestroyWindowEvent *ev = &e->xdestroywindow;

209

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

211 unmanage(c);

212 }

213

214 static void

215 enternotify(XEvent *e) {

216 Client *c;

217 XCrossingEvent *ev = &e->xcrossing;

218

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

220 return;

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

222 focus(c);

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

224 issel = True;

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

226 drawall();

227 }

228 }

229

230 static void

231 expose(XEvent *e) {

232 Client *c;

233 XExposeEvent *ev = &e->xexpose;

234

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

236 if(barwin == ev->window)

237 drawstatus();

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

239 drawclient(c);

240 }

241 }

242

243 static void

244 keypress(XEvent *e) {

245 static unsigned int len = sizeof key / sizeof key[0];

246 unsigned int i;

247 KeySym keysym;

248 XKeyEvent *ev = &e->xkey;

249

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

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

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

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

254 {

255 if(key[i].func)

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

257 }

258 }

259 }

260

261 static void

262 leavenotify(XEvent *e) {

263 XCrossingEvent *ev = &e->xcrossing;

264

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

266 issel = False;

267 drawall();

268 }

269 }

270

271 static void

272 mappingnotify(XEvent *e) {

273 XMappingEvent *ev = &e->xmapping;

274

275 XRefreshKeyboardMapping(ev);

276 if(ev->request == MappingKeyboard)

277 grabkeys();

278 }

279

280 static void

281 maprequest(XEvent *e) {

282 static XWindowAttributes wa;

283 XMapRequestEvent *ev = &e->xmaprequest;

284

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

286 return;

287 if(wa.override_redirect) {

288 XSelectInput(dpy, ev->window,

289 (StructureNotifyMask | PropertyChangeMask));

290 return;

291 }

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

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

294 }

295

296 static void

297 propertynotify(XEvent *e) {

298 Client *c;

299 Window trans;

300 XPropertyEvent *ev = &e->xproperty;

301

302 if(ev->state == PropertyDelete)

303 return; /* ignore */

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

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

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

307 return;

308 }

309 switch (ev->atom) {

310 default: break;

311 case XA_WM_TRANSIENT_FOR:

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

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

314 arrange();

315 break;

316 case XA_WM_NORMAL_HINTS:

317 updatesizehints(c);

318 break;

319 }

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

321 updatetitle(c);

322 resizetitle(c);

323 drawclient(c);

324 }

325 }

326 }

327

328 static void

329 unmapnotify(XEvent *e) {

330 Client *c;

331 XUnmapEvent *ev = &e->xunmap;

332

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

334 unmanage(c);

335 }

336

337 /* extern */

338

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

340 [ButtonPress] = buttonpress,

341 [ConfigureRequest] = configurerequest,

342 [DestroyNotify] = destroynotify,

343 [EnterNotify] = enternotify,

344 [LeaveNotify] = leavenotify,

345 [Expose] = expose,

346 [KeyPress] = keypress,

347 [MappingNotify] = mappingnotify,

348 [MapRequest] = maprequest,

349 [PropertyNotify] = propertynotify,

350 [UnmapNotify] = unmapnotify

351 };

352

353 void

354 grabkeys(void) {

355 static unsigned int len = sizeof key / sizeof key[0];

356 unsigned int i;

357 KeyCode code;

358

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

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

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

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

363 GrabModeAsync, GrabModeAsync);

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

365 GrabModeAsync, GrabModeAsync);

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

367 GrabModeAsync, GrabModeAsync);

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

369 GrabModeAsync, GrabModeAsync);

370 }

371 }

372

373 void

374 procevent(void) {

375 XEvent ev;

376

377 while(XPending(dpy)) {

378 XNextEvent(dpy, &ev);

379 if(handler[ev.type])

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

381 }

382 }