aewl: 798b906378d6 event.c

aewl

view event.c @ 551:798b906378d6

added screen-border snapping in floating mode, feels quite well

author	arg@mig29
date	Mon, 30 Oct 2006 11:58:05 +0100
parents	787f6ae02f29
children	98a0d10e9918

line source

1 /* (C)opyright MMVI 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(c->x) < sx + SNAP)

52 c->x = sx;

53 if(abs(c->y) < sy + bh + SNAP)

54 c->y = sy + bh;

55 if(abs(c->x + c->w) > sx + sw - SNAP)

56 c->x = sw - c->w - 2 * BORDERPX;

57 if(abs(c->y + c->h) > sy + sh - SNAP)

58 c->y = sh - 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 gravitate(c, True);

165 if(ev->value_mask & CWX)

166 c->x = ev->x;

167 if(ev->value_mask & CWY)

168 c->y = ev->y;

169 if(ev->value_mask & CWWidth)

170 c->w = ev->width;

171 if(ev->value_mask & CWHeight)

172 c->h = ev->height;

173 if(ev->value_mask & CWBorderWidth)

174 c->border = ev->border_width;

175 gravitate(c, False);

176 wc.x = c->x;

177 wc.y = c->y;

178 wc.width = c->w;

179 wc.height = c->h;

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

181 if(newmask)

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

183 else

184 configure(c);

185 XSync(dpy, False);

186 if(c->isfloat) {

187 resize(c, False, TopLeft);

188 if(!isvisible(c))

189 ban(c);

190 }

191 else

192 arrange();

193 }

194 else {

195 wc.x = ev->x;

196 wc.y = ev->y;

197 wc.width = ev->width;

198 wc.height = ev->height;

199 wc.border_width = ev->border_width;

200 wc.sibling = ev->above;

201 wc.stack_mode = ev->detail;

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

203 XSync(dpy, False);

204 }

205 }

206

207 static void

208 destroynotify(XEvent *e) {

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 Client *c;

219 XCrossingEvent *ev = &e->xcrossing;

220

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

222 return;

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

224 focus(c);

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

226 issel = True;

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

228 drawall();

229 }

230 }

231

232 static void

233 expose(XEvent *e) {

234 Client *c;

235 XExposeEvent *ev = &e->xexpose;

236

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

238 if(barwin == ev->window)

239 drawstatus();

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

241 drawtitle(c);

242 }

243 }

244

245 static void

246 keypress(XEvent *e) {

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

248 unsigned int i;

249 KeySym keysym;

250 XKeyEvent *ev = &e->xkey;

251

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

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

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

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

256 {

257 if(key[i].func)

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

259 return;

260 }

261 }

262 }

263

264 static void

265 leavenotify(XEvent *e) {

266 XCrossingEvent *ev = &e->xcrossing;

267

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

269 issel = False;

270 drawall();

271 }

272 }

273

274 static void

275 mappingnotify(XEvent *e) {

276 XMappingEvent *ev = &e->xmapping;

277

278 XRefreshKeyboardMapping(ev);

279 if(ev->request == MappingKeyboard)

280 grabkeys();

281 }

282

283 static void

284 maprequest(XEvent *e) {

285 static XWindowAttributes wa;

286 XMapRequestEvent *ev = &e->xmaprequest;

287

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

289 return;

290 if(wa.override_redirect) {

291 XSelectInput(dpy, ev->window,

292 (StructureNotifyMask | PropertyChangeMask));

293 return;

294 }

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

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

297 }

298

299 static void

300 propertynotify(XEvent *e) {

301 Client *c;

302 Window trans;

303 XPropertyEvent *ev = &e->xproperty;

304

305 if(ev->state == PropertyDelete)

306 return; /* ignore */

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

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

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

310 return;

311 }

312 switch (ev->atom) {

313 default: break;

314 case XA_WM_TRANSIENT_FOR:

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

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

317 arrange();

318 break;

319 case XA_WM_NORMAL_HINTS:

320 updatesize(c);

321 break;

322 }

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

324 updatetitle(c);

325 resizetitle(c);

326 drawtitle(c);

327 }

328 }

329 }

330

331 static void

332 unmapnotify(XEvent *e) {

333 Client *c;

334 XUnmapEvent *ev = &e->xunmap;

335

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

337 unmanage(c);

338 }

339

340 /* extern */

341

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

343 [ButtonPress] = buttonpress,

344 [ConfigureRequest] = configurerequest,

345 [DestroyNotify] = destroynotify,

346 [EnterNotify] = enternotify,

347 [LeaveNotify] = leavenotify,

348 [Expose] = expose,

349 [KeyPress] = keypress,

350 [MappingNotify] = mappingnotify,

351 [MapRequest] = maprequest,

352 [PropertyNotify] = propertynotify,

353 [UnmapNotify] = unmapnotify

354 };

355

356 void

357 grabkeys(void) {

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

359 unsigned int i;

360 KeyCode code;

361

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

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

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

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

366 GrabModeAsync, GrabModeAsync);

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

368 GrabModeAsync, GrabModeAsync);

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

370 GrabModeAsync, GrabModeAsync);

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

372 GrabModeAsync, GrabModeAsync);

373 }

374 }

375

376 void

377 procevent(void) {

378 XEvent ev;

379

380 while(XPending(dpy)) {

381 XNextEvent(dpy, &ev);

382 if(handler[ev.type])

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

384 }

385 }