aewl: 6283adb1fcf2 client.c

aewl

view client.c @ 734:6283adb1fcf2

replaced getproto with a saner function, now old-school artifacts of WM times in the early 90s completely disappeared, no punned pointer warning anymore ;)

author	Anselm R. Garbe <arg@suckless.org>
date	Wed, 07 Feb 2007 12:37:06 +0100
parents	1950833a5614
children	743061dbe7f2

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 <string.h>

7 #include <X11/Xatom.h>

8 #include <X11/Xutil.h>

10 /* static */

12 static void

13 detachstack(Client *c) {

14 Client **tc;

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

16 *tc = c->snext;

17 }

19 static void

20 grabbuttons(Client *c, Bool focused) {

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

23 if(focused) {

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

25 GrabModeAsync, GrabModeSync, None, None);

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

27 GrabModeAsync, GrabModeSync, None, None);

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

29 GrabModeAsync, GrabModeSync, None, None);

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

31 GrabModeAsync, GrabModeSync, None, None);

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

34 GrabModeAsync, GrabModeSync, None, None);

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

36 GrabModeAsync, GrabModeSync, None, None);

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

38 GrabModeAsync, GrabModeSync, None, None);

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

40 GrabModeAsync, GrabModeSync, None, None);

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

43 GrabModeAsync, GrabModeSync, None, None);

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

45 GrabModeAsync, GrabModeSync, None, None);

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

47 GrabModeAsync, GrabModeSync, None, None);

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

49 GrabModeAsync, GrabModeSync, None, None);

50 }

51 else

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

53 GrabModeAsync, GrabModeSync, None, None);

54 }

56 static void

57 setclientstate(Client *c, long state) {

58 long data[] = {state, None};

59 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,

60 PropModeReplace, (unsigned char *)data, 2);

61 }

63 static int

64 xerrordummy(Display *dsply, XErrorEvent *ee) {

65 return 0;

66 }

68 /* extern */

70 void

71 configure(Client *c) {

72 XEvent synev;

74 synev.type = ConfigureNotify;

75 synev.xconfigure.display = dpy;

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

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

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

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

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

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

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

83 synev.xconfigure.above = None;

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

85 }

87 void

88 focus(Client *c) {

89 if(c && !isvisible(c))

90 return;

91 if(sel && sel != c) {

92 grabbuttons(sel, False);

93 XSetWindowBorder(dpy, sel->win, dc.norm[ColBorder]);

94 }

95 if(c) {

96 detachstack(c);

97 c->snext = stack;

98 stack = c;

99 grabbuttons(c, True);

100 }

101 sel = c;

102 drawstatus();

103 if(!selscreen)

104 return;

105 if(c) {

106 XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);

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

108 }

109 else

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

111 }

112

113 Client *

114 getclient(Window w) {

115 Client *c;

116

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

118 if(c->win == w)

119 return c;

120 return NULL;

121 }

122

123 Bool

124 isprotodel(Client *c) {

125 int i, n;

126 Atom *protocols;

127 Bool ret = False;

128

129 if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {

130 for(i = 0; !ret && i < n; i++)

131 if(protocols[i] == wmatom[WMDelete])

132 ret = True;

133 XFree(protocols);

134 }

135 return ret;

136 }

137

138 void

139 killclient(Arg *arg) {

140 if(!sel)

141 return;

142 if(isprotodel(sel))

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

144 else

145 XKillClient(dpy, sel->win);

146 }

147

148 void

149 manage(Window w, XWindowAttributes *wa) {

150 Client *c;

151 Window trans;

152

153 c = emallocz(sizeof(Client));

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

155 c->win = w;

156 c->x = wa->x;

157 c->y = wa->y;

158 c->w = wa->width;

159 c->h = wa->height;

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

161 c->border = 0;

162 c->x = sx;

163 c->y = sy;

164 }

165 else {

166 c->border = BORDERPX;

167 if(c->x + c->w + 2 * c->border > wax + waw)

168 c->x = wax + waw - c->w - 2 * c->border;

169 if(c->y + c->h + 2 * c->border > way + wah)

170 c->y = way + wah - c->h - 2 * c->border;

171 if(c->x < wax)

172 c->x = wax;

173 if(c->y < way)

174 c->y = way;

175 }

176 updatesizehints(c);

177 XSelectInput(dpy, c->win,

178 StructureNotifyMask | PropertyChangeMask | EnterWindowMask);

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

180 grabbuttons(c, False);

181 XSetWindowBorder(dpy, c->win, dc.norm[ColBorder]);

182 updatetitle(c);

183 settags(c, getclient(trans));

184 if(!c->isfloat)

185 c->isfloat = trans || c->isfixed;

186 if(clients)

187 clients->prev = c;

188 c->next = clients;

189 c->snext = stack;

190 stack = clients = c;

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

192 XMapWindow(dpy, c->win);

193 setclientstate(c, NormalState);

194 if(isvisible(c))

195 focus(c);

196 arrange();

197 }

198

199 void

200 resize(Client *c, Bool sizehints) {

201 float actual, dx, dy, max, min;

202 XWindowChanges wc;

203

204 if(c->w <= 0 || c->h <= 0)

205 return;

206 if(sizehints) {

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

208 c->w = c->minw;

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

210 c->h = c->minh;

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

212 c->w = c->maxw;

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

214 c->h = c->maxh;

215 /* inspired by algorithm from fluxbox */

216 if(c->minay > 0 && c->maxay && (c->h - c->baseh) > 0) {

217 dx = (float)(c->w - c->basew);

218 dy = (float)(c->h - c->baseh);

219 min = (float)(c->minax) / (float)(c->minay);

220 max = (float)(c->maxax) / (float)(c->maxay);

221 actual = dx / dy;

222 if(max > 0 && min > 0 && actual > 0) {

223 if(actual < min) {

224 dy = (dx * min + dy) / (min * min + 1);

225 dx = dy * min;

226 c->w = (int)dx + c->basew;

227 c->h = (int)dy + c->baseh;

228 }

229 else if(actual > max) {

230 dy = (dx * min + dy) / (max * max + 1);

231 dx = dy * min;

232 c->w = (int)dx + c->basew;

233 c->h = (int)dy + c->baseh;

234 }

235 }

236 }

237 if(c->incw)

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

239 if(c->inch)

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

241 }

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

243 c->border = 0;

244 else

245 c->border = BORDERPX;

246 /* offscreen appearance fixes */

247 if(c->x > sw)

248 c->x = sw - c->w - 2 * c->border;

249 if(c->y > sh)

250 c->y = sh - c->h - 2 * c->border;

251 if(c->x + c->w + 2 * c->border < sx)

252 c->x = sx;

253 if(c->y + c->h + 2 * c->border < sy)

254 c->y = sy;

255 wc.x = c->x;

256 wc.y = c->y;

257 wc.width = c->w;

258 wc.height = c->h;

259 wc.border_width = c->border;

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

261 configure(c);

262 XSync(dpy, False);

263 }

264

265 void

266 updatesizehints(Client *c) {

267 long msize;

268 XSizeHints size;

269

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

271 size.flags = PSize;

272 c->flags = size.flags;

273 if(c->flags & PBaseSize) {

274 c->basew = size.base_width;

275 c->baseh = size.base_height;

276 }

277 else

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

279 if(c->flags & PResizeInc) {

280 c->incw = size.width_inc;

281 c->inch = size.height_inc;

282 }

283 else

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

285 if(c->flags & PMaxSize) {

286 c->maxw = size.max_width;

287 c->maxh = size.max_height;

288 }

289 else

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

291 if(c->flags & PMinSize) {

292 c->minw = size.min_width;

293 c->minh = size.min_height;

294 }

295 else

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

297 if(c->flags & PAspect) {

298 c->minax = size.min_aspect.x;

299 c->minay = size.min_aspect.y;

300 c->maxax = size.max_aspect.x;

301 c->maxay = size.max_aspect.y;

302 }

303 else

304 c->minax = c->minay = c->maxax = c->maxay = 0;

305 c->isfixed = (c->maxw && c->minw && c->maxh && c->minh &&

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

307 }

308

309 void

310 updatetitle(Client *c) {

311 char **list = NULL;

312 int n;

313 XTextProperty name;

314

315 name.nitems = 0;

316 c->name[0] = 0;

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

318 if(!name.nitems)

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

320 if(!name.nitems)

321 return;

322 if(name.encoding == XA_STRING)

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

324 else {

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

326 && n > 0 && *list)

327 {

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

329 XFreeStringList(list);

330 }

331 }

332 XFree(name.value);

333 }

334

335 void

336 unmanage(Client *c) {

337 Client *nc;

338

339 /* The server grab construct avoids race conditions. */

340 XGrabServer(dpy);

341 XSetErrorHandler(xerrordummy);

342 detach(c);

343 detachstack(c);

344 if(sel == c) {

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

346 focus(nc);

347 }

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

349 setclientstate(c, WithdrawnState);

350 free(c->tags);

351 free(c);

352 XSync(dpy, False);

353 XSetErrorHandler(xerror);

354 XUngrabServer(dpy);

355 arrange();

356 }