event.c (view raw)
1/*
2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
3 * See LICENSE file for license details.
4 */
5
6#include <fcntl.h>
7#include <stdio.h>
8#include <stdlib.h>
9#include <string.h>
10#include <unistd.h>
11#include <X11/keysym.h>
12#include <X11/Xatom.h>
13
14#include "dwm.h"
15
16#define ButtonMask (ButtonPressMask | ButtonReleaseMask)
17#define MouseMask (ButtonMask | PointerMotionMask)
18
19/********** CUSTOMIZE **********/
20
21const char *term[] = {
22 "urxvtc", "-tr", "+sb", "-bg", "black", "-fg", "white", "-fn",
23 "-*-terminus-medium-*-*-*-13-*-*-*-*-*-iso10646-*",NULL
24};
25const char *browse[] = { "firefox", NULL };
26const char *xlock[] = { "xlock", NULL };
27
28Key key[] = {
29 /* modifier key function arguments */
30 { Mod1Mask, XK_Return, zoom, { 0 } },
31 { Mod1Mask, XK_k, focusprev, { 0 } },
32 { Mod1Mask, XK_j, focusnext, { 0 } },
33 { Mod1Mask, XK_m, maximize, { 0 } },
34 { Mod1Mask, XK_0, view, { .i = Tscratch } },
35 { Mod1Mask, XK_1, view, { .i = Tdev } },
36 { Mod1Mask, XK_2, view, { .i = Twww } },
37 { Mod1Mask, XK_3, view, { .i = Twork } },
38 { Mod1Mask, XK_space, dotile, { 0 } },
39 { Mod1Mask|ShiftMask, XK_space, dofloat, { 0 } },
40 { Mod1Mask|ShiftMask, XK_0, replacetag, { .i = Tscratch } },
41 { Mod1Mask|ShiftMask, XK_1, replacetag, { .i = Tdev } },
42 { Mod1Mask|ShiftMask, XK_2, replacetag, { .i = Twww } },
43 { Mod1Mask|ShiftMask, XK_3, replacetag, { .i = Twork } },
44 { Mod1Mask|ShiftMask, XK_c, killclient, { 0 } },
45 { Mod1Mask|ShiftMask, XK_q, quit, { 0 } },
46 { Mod1Mask|ShiftMask, XK_Return, spawn, { .argv = term } },
47 { Mod1Mask|ShiftMask, XK_w, spawn, { .argv = browse } },
48 { Mod1Mask|ShiftMask, XK_l, spawn, { .argv = xlock } },
49 { ControlMask, XK_0, appendtag, { .i = Tscratch } },
50 { ControlMask, XK_1, appendtag, { .i = Tdev } },
51 { ControlMask, XK_2, appendtag, { .i = Twww } },
52 { ControlMask, XK_3, appendtag, { .i = Twork } },
53};
54
55/********** CUSTOMIZE **********/
56
57/* local functions */
58static void buttonpress(XEvent *e);
59static void configurerequest(XEvent *e);
60static void destroynotify(XEvent *e);
61static void enternotify(XEvent *e);
62static void leavenotify(XEvent *e);
63static void expose(XEvent *e);
64static void keypress(XEvent *e);
65static void maprequest(XEvent *e);
66static void propertynotify(XEvent *e);
67static void unmapnotify(XEvent *e);
68
69void (*handler[LASTEvent]) (XEvent *) = {
70 [ButtonPress] = buttonpress,
71 [ConfigureRequest] = configurerequest,
72 [DestroyNotify] = destroynotify,
73 [EnterNotify] = enternotify,
74 [LeaveNotify] = leavenotify,
75 [Expose] = expose,
76 [KeyPress] = keypress,
77 [MapRequest] = maprequest,
78 [PropertyNotify] = propertynotify,
79 [UnmapNotify] = unmapnotify
80};
81
82void
83grabkeys()
84{
85 static unsigned int len = key ? sizeof(key) / sizeof(key[0]) : 0;
86 unsigned int i;
87 KeyCode code;
88
89 for(i = 0; i < len; i++) {
90 code = XKeysymToKeycode(dpy, key[i].keysym);
91 XUngrabKey(dpy, code, key[i].mod, root);
92 XGrabKey(dpy, code, key[i].mod, root, True,
93 GrabModeAsync, GrabModeAsync);
94 }
95}
96
97static void
98keypress(XEvent *e)
99{
100 XKeyEvent *ev = &e->xkey;
101 static unsigned int len = key ? sizeof(key) / sizeof(key[0]) : 0;
102 unsigned int i;
103 KeySym keysym;
104
105 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
106 for(i = 0; i < len; i++)
107 if((keysym == key[i].keysym) && (key[i].mod == ev->state)) {
108 if(key[i].func)
109 key[i].func(&key[i].arg);
110 return;
111 }
112}
113
114static void
115resizemouse(Client *c)
116{
117 XEvent ev;
118 int ocx, ocy;
119
120 ocx = c->x;
121 ocy = c->y;
122 if(XGrabPointer(dpy, root, False, MouseMask, GrabModeAsync, GrabModeAsync,
123 None, cursor[CurResize], CurrentTime) != GrabSuccess)
124 return;
125 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w, c->h);
126 for(;;) {
127 XMaskEvent(dpy, MouseMask | ExposureMask, &ev);
128 switch(ev.type) {
129 default: break;
130 case Expose:
131 handler[Expose](&ev);
132 break;
133 case MotionNotify:
134 XFlush(dpy);
135 c->w = abs(ocx - ev.xmotion.x);
136 c->h = abs(ocy - ev.xmotion.y);
137 c->x = (ocx <= ev.xmotion.x) ? ocx : ocx - c->w;
138 c->y = (ocy <= ev.xmotion.y) ? ocy : ocy - c->h;
139 resize(c, True);
140 break;
141 case ButtonRelease:
142 XUngrabPointer(dpy, CurrentTime);
143 return;
144 }
145 }
146}
147
148static void
149movemouse(Client *c)
150{
151 XEvent ev;
152 int x1, y1, ocx, ocy, di;
153 unsigned int dui;
154 Window dummy;
155
156 ocx = c->x;
157 ocy = c->y;
158 if(XGrabPointer(dpy, root, False, MouseMask, GrabModeAsync, GrabModeAsync,
159 None, cursor[CurMove], CurrentTime) != GrabSuccess)
160 return;
161 XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
162 for(;;) {
163 XMaskEvent(dpy, MouseMask | ExposureMask, &ev);
164 switch (ev.type) {
165 default: break;
166 case Expose:
167 handler[Expose](&ev);
168 break;
169 case MotionNotify:
170 XFlush(dpy);
171 c->x = ocx + (ev.xmotion.x - x1);
172 c->y = ocy + (ev.xmotion.y - y1);
173 resize(c, False);
174 break;
175 case ButtonRelease:
176 XUngrabPointer(dpy, CurrentTime);
177 return;
178 }
179 }
180}
181
182static void
183buttonpress(XEvent *e)
184{
185 int x;
186 Arg a;
187 XButtonPressedEvent *ev = &e->xbutton;
188 Client *c;
189
190 if(barwin == ev->window) {
191 x = (arrange == dofloat) ? textw("~") : 0;
192 for(a.i = 0; a.i < TLast; a.i++) {
193 x += textw(tags[a.i]);
194 if(ev->x < x) {
195 view(&a);
196 break;
197 }
198 }
199 }
200 else if((c = getclient(ev->window))) {
201 if(arrange == dotile && !c->dofloat)
202 return;
203 higher(c);
204 switch(ev->button) {
205 default:
206 break;
207 case Button1:
208 movemouse(c);
209 break;
210 case Button2:
211 lower(c);
212 break;
213 case Button3:
214 resizemouse(c);
215 break;
216 }
217 }
218}
219
220static void
221configurerequest(XEvent *e)
222{
223 XConfigureRequestEvent *ev = &e->xconfigurerequest;
224 XWindowChanges wc;
225 Client *c;
226
227 ev->value_mask &= ~CWSibling;
228 if((c = getclient(ev->window))) {
229 gravitate(c, True);
230 if(ev->value_mask & CWX)
231 c->x = ev->x;
232 if(ev->value_mask & CWY)
233 c->y = ev->y;
234 if(ev->value_mask & CWWidth)
235 c->w = ev->width;
236 if(ev->value_mask & CWHeight)
237 c->h = ev->height;
238 if(ev->value_mask & CWBorderWidth)
239 c->border = 1;
240 gravitate(c, False);
241 resize(c, True);
242 }
243
244 wc.x = ev->x;
245 wc.y = ev->y;
246 wc.width = ev->width;
247 wc.height = ev->height;
248 wc.border_width = 1;
249 wc.sibling = None;
250 wc.stack_mode = Above;
251 ev->value_mask &= ~CWStackMode;
252 ev->value_mask |= CWBorderWidth;
253 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
254 XFlush(dpy);
255}
256
257static void
258destroynotify(XEvent *e)
259{
260 Client *c;
261 XDestroyWindowEvent *ev = &e->xdestroywindow;
262
263 if((c = getclient(ev->window)))
264 unmanage(c);
265}
266
267static void
268enternotify(XEvent *e)
269{
270 XCrossingEvent *ev = &e->xcrossing;
271 Client *c;
272
273 if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
274 return;
275
276 if((c = getclient(ev->window)))
277 focus(c);
278 else if(ev->window == root)
279 issel = True;
280}
281
282static void
283leavenotify(XEvent *e)
284{
285 XCrossingEvent *ev = &e->xcrossing;
286
287 if((ev->window == root) && !ev->same_screen)
288 issel = True;
289}
290
291static void
292expose(XEvent *e)
293{
294 XExposeEvent *ev = &e->xexpose;
295 Client *c;
296
297 if(ev->count == 0) {
298 if(barwin == ev->window)
299 drawstatus();
300 else if((c = getctitle(ev->window)))
301 drawtitle(c);
302 }
303}
304
305static void
306maprequest(XEvent *e)
307{
308 XMapRequestEvent *ev = &e->xmaprequest;
309 static XWindowAttributes wa;
310
311 if(!XGetWindowAttributes(dpy, ev->window, &wa))
312 return;
313
314 if(wa.override_redirect) {
315 XSelectInput(dpy, ev->window,
316 (StructureNotifyMask | PropertyChangeMask));
317 return;
318 }
319
320 if(!getclient(ev->window))
321 manage(ev->window, &wa);
322}
323
324static void
325propertynotify(XEvent *e)
326{
327 XPropertyEvent *ev = &e->xproperty;
328 Window trans;
329 Client *c;
330
331 if(ev->state == PropertyDelete)
332 return; /* ignore */
333
334 if((c = getclient(ev->window))) {
335 if(ev->atom == wm_atom[WMProtocols]) {
336 c->proto = getproto(c->win);
337 return;
338 }
339 switch (ev->atom) {
340 default: break;
341 case XA_WM_TRANSIENT_FOR:
342 XGetTransientForHint(dpy, c->win, &trans);
343 if(!c->dofloat && (c->dofloat = (trans != 0)))
344 arrange(NULL);
345 break;
346 case XA_WM_NORMAL_HINTS:
347 setsize(c);
348 break;
349 }
350 if(ev->atom == XA_WM_NAME || ev->atom == net_atom[NetWMName]) {
351 settitle(c);
352 drawtitle(c);
353 }
354 }
355}
356
357static void
358unmapnotify(XEvent *e)
359{
360 Client *c;
361 XUnmapEvent *ev = &e->xunmap;
362
363 if((c = getclient(ev->window)))
364 unmanage(c);
365}