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[chaz/openbox] / plugins / mouse / mouse.c
1 #include "kernel/openbox.h"
2 #include "kernel/dispatch.h"
3 #include "kernel/action.h"
4 #include "kernel/event.h"
5 #include "kernel/client.h"
6 #include "kernel/prop.h"
7 #include "kernel/grab.h"
8 #include "kernel/parse.h"
9 #include "kernel/frame.h"
10 #include "translate.h"
11 #include "mouse.h"
12 #include <glib.h>
13
14 static int threshold;
15 static int dclicktime;
16
17 /*
18
19 <context name="Titlebar">
20 <mousebind button="Left" action="Press">
21 <action name="Raise"></action>
22 </mousebind>
23 </context>
24
25 */
26
27 static void parse_xml(xmlDocPtr doc, xmlNodePtr node, void *d)
28 {
29 xmlNodePtr n, nbut, nact;
30 char *buttonstr;
31 char *contextstr;
32 MouseAction mact;
33 Action *action;
34
35 if ((n = parse_find_node("dragThreshold", node)))
36 threshold = parse_int(doc, n);
37 if ((n = parse_find_node("doubleClickTime", node)))
38 dclicktime = parse_int(doc, n);
39
40 n = parse_find_node("context", node);
41 while (n) {
42 if (!parse_attr_string("name", n, &contextstr))
43 goto next_n;
44 nbut = parse_find_node("mousebind", n->xmlChildrenNode);
45 while (nbut) {
46 if (!parse_attr_string("button", nbut, &buttonstr))
47 goto next_nbut;
48 if (parse_attr_contains("press", nbut, "action"))
49 mact = MouseAction_Press;
50 else if (parse_attr_contains("release", nbut, "action"))
51 mact = MouseAction_Release;
52 else if (parse_attr_contains("click", nbut, "action"))
53 mact = MouseAction_Click;
54 else if (parse_attr_contains("doubleclick", nbut,"action"))
55 mact = MouseAction_DClick;
56 else if (parse_attr_contains("drag", nbut, "action"))
57 mact = MouseAction_Motion;
58 else
59 goto next_nbut;
60 nact = parse_find_node("action", nbut->xmlChildrenNode);
61 while (nact) {
62 if ((action = parse_action(doc, nact))) {
63 /* validate that its okay for a mouse binding*/
64 if (mact == MouseAction_Motion) {
65 if (action->func != action_moveresize ||
66 action->data.moveresize.corner ==
67 prop_atoms.net_wm_moveresize_move_keyboard ||
68 action->data.moveresize.corner ==
69 prop_atoms.net_wm_moveresize_size_keyboard) {
70 action_free(action);
71 action = NULL;
72 }
73 } else {
74 if (action->func == action_moveresize &&
75 action->data.moveresize.corner !=
76 prop_atoms.net_wm_moveresize_move_keyboard &&
77 action->data.moveresize.corner !=
78 prop_atoms.net_wm_moveresize_size_keyboard) {
79 action_free(action);
80 action = NULL;
81 }
82 }
83 if (action)
84 mbind(buttonstr, contextstr, mact, action);
85 }
86 nact = parse_find_node("action", nact->next);
87 }
88 g_free(buttonstr);
89 next_nbut:
90 nbut = parse_find_node("mousebind", nbut->next);
91 }
92 g_free(contextstr);
93 next_n:
94 n = parse_find_node("context", n->next);
95 }
96 }
97
98 void plugin_setup_config()
99 {
100 threshold = 3;
101 dclicktime = 200;
102 parse_register("mouse", parse_xml, NULL);
103 }
104
105 /* Array of GSList*s of PointerBinding*s. */
106 static GSList *bound_contexts[NUM_CONTEXTS];
107
108 static void grab_for_client(Client *client, gboolean grab)
109 {
110 int i;
111 GSList *it;
112
113 for (i = 0; i < NUM_CONTEXTS; ++i)
114 for (it = bound_contexts[i]; it != NULL; it = it->next) {
115 /* grab/ungrab the button */
116 MouseBinding *b = it->data;
117 Window win;
118 int mode;
119 unsigned int mask;
120
121 if (i == Context_Frame) {
122 win = client->frame->window;
123 mode = GrabModeAsync;
124 mask = ButtonPressMask | ButtonMotionMask | ButtonReleaseMask;
125 } else if (i == Context_Client) {
126 win = client->frame->plate;
127 mode = GrabModeSync; /* this is handled in event */
128 mask = ButtonPressMask; /* can't catch more than this with Sync
129 mode the release event is
130 manufactured in event() */
131 } else continue;
132
133 if (grab)
134 grab_button_full(b->button, b->state, win, mask, mode, None);
135 else
136 ungrab_button(b->button, b->state, win);
137 }
138 }
139
140 static void grab_all_clients(gboolean grab)
141 {
142 GList *it;
143
144 for (it = client_list; it != NULL; it = it->next)
145 grab_for_client(it->data, grab);
146 }
147
148 static void clearall()
149 {
150 int i;
151 GSList *it;
152
153 for(i = 0; i < NUM_CONTEXTS; ++i) {
154 for (it = bound_contexts[i]; it != NULL; it = it->next) {
155 int j;
156
157 MouseBinding *b = it->data;
158 for (j = 0; j < NUM_MOUSEACTION; ++j) {
159 GSList *it;
160 for (it = b->actions[j]; it; it = it->next) {
161 action_free(it->data);
162 }
163 g_slist_free(b->actions[j]);
164 }
165 g_free(b);
166 }
167 g_slist_free(bound_contexts[i]);
168 }
169 }
170
171 static void fire_button(MouseAction a, Context context, Client *c, guint state,
172 guint button, int x, int y)
173 {
174 GSList *it;
175 MouseBinding *b;
176
177 for (it = bound_contexts[context]; it != NULL; it = it->next) {
178 b = it->data;
179 if (b->state == state && b->button == button)
180 break;
181 }
182 /* if not bound, then nothing to do! */
183 if (it == NULL) return;
184
185 for (it = b->actions[a]; it; it = it->next) {
186 Action *act = it->data;
187 if (act->func != NULL) {
188 act->data.any.c = c;
189
190 g_assert(act->func != action_moveresize);
191
192 if (act->func == action_showmenu) {
193 act->data.showmenu.x = x;
194 act->data.showmenu.y = y;
195 }
196
197 act->func(&act->data);
198 }
199 }
200 }
201
202 static void fire_motion(MouseAction a, Context context, Client *c,
203 guint state, guint button, int x_root, int y_root,
204 guint32 corner)
205 {
206 GSList *it;
207 MouseBinding *b;
208
209 for (it = bound_contexts[context]; it != NULL; it = it->next) {
210 b = it->data;
211 if (b->state == state && b->button == button)
212 break;
213 }
214 /* if not bound, then nothing to do! */
215 if (it == NULL) return;
216
217 for (it = b->actions[a]; it; it = it->next) {
218 Action *act = it->data;
219 if (act->func != NULL) {
220 act->data.any.c = c;
221
222 if (act->func == action_moveresize) {
223 act->data.moveresize.x = x_root;
224 act->data.moveresize.y = y_root;
225 act->data.moveresize.button = button;
226 if (!(act->data.moveresize.corner ==
227 prop_atoms.net_wm_moveresize_move ||
228 act->data.moveresize.corner ==
229 prop_atoms.net_wm_moveresize_move_keyboard ||
230 act->data.moveresize.corner ==
231 prop_atoms.net_wm_moveresize_size_keyboard))
232 act->data.moveresize.corner = corner;
233 } else
234 g_assert_not_reached();
235
236 act->func(&act->data);
237 }
238 }
239 }
240
241 static guint32 pick_corner(int x, int y, int cx, int cy, int cw, int ch)
242 {
243 if (x - cx < cw / 2) {
244 if (y - cy < ch / 2)
245 return prop_atoms.net_wm_moveresize_size_topleft;
246 else
247 return prop_atoms.net_wm_moveresize_size_bottomleft;
248 } else {
249 if (y - cy < ch / 2)
250 return prop_atoms.net_wm_moveresize_size_topright;
251 else
252 return prop_atoms.net_wm_moveresize_size_bottomright;
253 }
254 }
255
256 static void event(ObEvent *e, void *foo)
257 {
258 static Time ltime;
259 static guint button = 0, state = 0, lbutton = 0;
260 static int px, py;
261 gboolean click = FALSE;
262 gboolean dclick = FALSE;
263 Context context;
264
265 switch (e->type) {
266 case Event_Client_Mapped:
267 grab_for_client(e->data.c.client, TRUE);
268 break;
269
270 case Event_Client_Destroy:
271 grab_for_client(e->data.c.client, FALSE);
272 break;
273
274 case Event_X_ButtonPress:
275 context = frame_context(e->data.x.client,
276 e->data.x.e->xbutton.window);
277
278 if (!button) {
279 px = e->data.x.e->xbutton.x_root;
280 py = e->data.x.e->xbutton.y_root;
281 button = e->data.x.e->xbutton.button;
282 state = e->data.x.e->xbutton.state;
283 }
284
285 fire_button(MouseAction_Press, context,
286 e->data.x.client, e->data.x.e->xbutton.state,
287 e->data.x.e->xbutton.button,
288 e->data.x.e->xbutton.x_root, e->data.x.e->xbutton.y_root);
289
290 if (context == Context_Client) {
291 /* Replay the event, so it goes to the client*/
292 XAllowEvents(ob_display, ReplayPointer, event_lasttime);
293 /* Fall through to the release case! */
294 } else
295 break;
296
297 case Event_X_ButtonRelease:
298 context = frame_context(e->data.x.client,
299 e->data.x.e->xbutton.window);
300 if (e->data.x.e->xbutton.button == button) {
301 /* clicks are only valid if its released over the window */
302 int junk1, junk2;
303 Window wjunk;
304 guint ujunk, b, w, h;
305 XGetGeometry(ob_display, e->data.x.e->xbutton.window,
306 &wjunk, &junk1, &junk2, &w, &h, &b, &ujunk);
307 if (e->data.x.e->xbutton.x >= (signed)-b &&
308 e->data.x.e->xbutton.y >= (signed)-b &&
309 e->data.x.e->xbutton.x < (signed)(w+b) &&
310 e->data.x.e->xbutton.y < (signed)(h+b)) {
311 click = TRUE;
312 /* double clicks happen if there were 2 in a row! */
313 if (lbutton == button &&
314 e->data.x.e->xbutton.time - dclicktime <= ltime) {
315 dclick = TRUE;
316 lbutton = 0;
317 } else
318 lbutton = button;
319 } else
320 lbutton = 0;
321
322 button = 0;
323 state = 0;
324 ltime = e->data.x.e->xbutton.time;
325 }
326 fire_button(MouseAction_Release, context,
327 e->data.x.client, e->data.x.e->xbutton.state,
328 e->data.x.e->xbutton.button,
329 e->data.x.e->xbutton.x_root, e->data.x.e->xbutton.y_root);
330 if (click)
331 fire_button(MouseAction_Click, context,
332 e->data.x.client, e->data.x.e->xbutton.state,
333 e->data.x.e->xbutton.button,
334 e->data.x.e->xbutton.x_root,
335 e->data.x.e->xbutton.y_root);
336 if (dclick)
337 fire_button(MouseAction_DClick, context,
338 e->data.x.client, e->data.x.e->xbutton.state,
339 e->data.x.e->xbutton.button,
340 e->data.x.e->xbutton.x_root,
341 e->data.x.e->xbutton.y_root);
342 break;
343
344 case Event_X_MotionNotify:
345 if (button) {
346 if (ABS(e->data.x.e->xmotion.x_root - px) >= threshold ||
347 ABS(e->data.x.e->xmotion.y_root - py) >= threshold) {
348 guint32 corner;
349
350 context = frame_context(e->data.x.client,
351 e->data.x.e->xmotion.window);
352
353 /* You can't drag on buttons */
354 if (context == Context_Maximize ||
355 context == Context_AllDesktops ||
356 context == Context_Shade ||
357 context == Context_Iconify ||
358 context == Context_Icon ||
359 context == Context_Close)
360 break;
361
362 if (!e->data.x.client)
363 corner = prop_atoms.net_wm_moveresize_size_bottomright;
364 else
365 corner =
366 pick_corner(e->data.x.e->xmotion.x_root,
367 e->data.x.e->xmotion.y_root,
368 e->data.x.client->frame->area.x,
369 e->data.x.client->frame->area.y,
370 /* use the client size because the frame
371 can be differently sized (shaded
372 windows) and we want this based on the
373 clients size */
374 e->data.x.client->area.width +
375 e->data.x.client->frame->size.left +
376 e->data.x.client->frame->size.right,
377 e->data.x.client->area.height +
378 e->data.x.client->frame->size.top +
379 e->data.x.client->frame->size.bottom);
380 fire_motion(MouseAction_Motion, context,
381 e->data.x.client, state, button,
382 e->data.x.e->xmotion.x_root,
383 e->data.x.e->xmotion.y_root, corner);
384 button = 0;
385 state = 0;
386 }
387 }
388 break;
389
390 default:
391 g_assert_not_reached();
392 }
393 }
394
395 gboolean mbind(char *buttonstr, char *contextstr, MouseAction mact,
396 Action *action)
397 {
398 guint state, button;
399 Context context;
400 MouseBinding *b;
401 GSList *it;
402
403 if (!translate_button(buttonstr, &state, &button)) {
404 g_warning("invalid button '%s'", buttonstr);
405 return FALSE;
406 }
407
408 contextstr = g_ascii_strdown(contextstr, -1);
409 context = frame_context_from_string(contextstr);
410 if (!context) {
411 g_warning("invalid context '%s'", contextstr);
412 g_free(contextstr);
413 return FALSE;
414 }
415 g_free(contextstr);
416
417 for (it = bound_contexts[context]; it != NULL; it = it->next){
418 b = it->data;
419 if (b->state == state && b->button == button) {
420 b->actions[mact] = g_slist_append(b->actions[mact], action);
421 return TRUE;
422 }
423 }
424
425 grab_all_clients(FALSE);
426
427 /* add the binding */
428 b = g_new0(MouseBinding, 1);
429 b->state = state;
430 b->button = button;
431 b->actions[mact] = g_slist_append(NULL, action);
432 bound_contexts[context] = g_slist_append(bound_contexts[context], b);
433
434 grab_all_clients(TRUE);
435
436 return TRUE;
437 }
438
439 void plugin_startup()
440 {
441 dispatch_register(Event_Client_Mapped | Event_Client_Destroy |
442 Event_X_ButtonPress | Event_X_ButtonRelease |
443 Event_X_MotionNotify, (EventHandler)event, NULL);
444 }
445
446 void plugin_shutdown()
447 {
448 dispatch_register(0, (EventHandler)event, NULL);
449
450 grab_all_clients(FALSE);
451 clearall();
452 }
my patches for the openbox window manager
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