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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/frame.h"
9 #include "parser/parse.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 <context name="Titlebar">
19 <mousebind button="Left" action="Press">
20 <action name="Raise"></action>
21 </mousebind>
22 </context>
23
24 */
25
26 static void parse_xml(xmlDocPtr doc, xmlNodePtr node, void *d)
27 {
28 xmlNodePtr n, nbut, nact;
29 char *buttonstr;
30 char *contextstr;
31 MouseAction mact;
32 Action *action;
33
34 node = node->xmlChildrenNode;
35
36 if ((n = parse_find_node("dragThreshold", node)))
37 threshold = parse_int(doc, n);
38 if ((n = parse_find_node("doubleClickTime", node)))
39 dclicktime = parse_int(doc, n);
40
41 n = parse_find_node("context", node);
42 while (n) {
43 if (!parse_attr_string("name", n, &contextstr))
44 goto next_n;
45 nbut = parse_find_node("mousebind", n->xmlChildrenNode);
46 while (nbut) {
47 if (!parse_attr_string("button", nbut, &buttonstr))
48 goto next_nbut;
49 if (parse_attr_contains("press", nbut, "action"))
50 mact = MouseAction_Press;
51 else if (parse_attr_contains("release", nbut, "action"))
52 mact = MouseAction_Release;
53 else if (parse_attr_contains("click", nbut, "action"))
54 mact = MouseAction_Click;
55 else if (parse_attr_contains("doubleclick", nbut,"action"))
56 mact = MouseAction_DClick;
57 else if (parse_attr_contains("drag", nbut, "action"))
58 mact = MouseAction_Motion;
59 else
60 goto next_nbut;
61 nact = parse_find_node("action", nbut->xmlChildrenNode);
62 while (nact) {
63 if ((action = action_parse(doc, nact))) {
64 /* validate that its okay for a mouse binding*/
65 if (mact == MouseAction_Motion) {
66 if (action->func != action_moveresize ||
67 action->data.moveresize.corner ==
68 prop_atoms.net_wm_moveresize_move_keyboard ||
69 action->data.moveresize.corner ==
70 prop_atoms.net_wm_moveresize_size_keyboard) {
71 action_free(action);
72 action = NULL;
73 }
74 } else {
75 if (action->func == action_moveresize &&
76 action->data.moveresize.corner !=
77 prop_atoms.net_wm_moveresize_move_keyboard &&
78 action->data.moveresize.corner !=
79 prop_atoms.net_wm_moveresize_size_keyboard) {
80 action_free(action);
81 action = NULL;
82 }
83 }
84 if (action)
85 mbind(buttonstr, contextstr, mact, action);
86 }
87 nact = parse_find_node("action", nact->next);
88 }
89 g_free(buttonstr);
90 next_nbut:
91 nbut = parse_find_node("mousebind", nbut->next);
92 }
93 g_free(contextstr);
94 next_n:
95 n = parse_find_node("context", n->next);
96 }
97 }
98
99 void plugin_setup_config()
100 {
101 threshold = 3;
102 dclicktime = 200;
103 parse_register("mouse", parse_xml, NULL);
104 }
105
106 /* Array of GSList*s of PointerBinding*s. */
107 static GSList *bound_contexts[OB_FRAME_NUM_CONTEXTS];
108
109 static void grab_for_client(ObClient *client, gboolean grab)
110 {
111 int i;
112 GSList *it;
113
114 for (i = 0; i < OB_FRAME_NUM_CONTEXTS; ++i)
115 for (it = bound_contexts[i]; it != NULL; it = it->next) {
116 /* grab/ungrab the button */
117 MouseBinding *b = it->data;
118 Window win;
119 int mode;
120 unsigned int mask;
121
122 if (i == OB_FRAME_CONTEXT_FRAME) {
123 win = client->frame->window;
124 mode = GrabModeAsync;
125 mask = ButtonPressMask | ButtonMotionMask | ButtonReleaseMask;
126 } else if (i == OB_FRAME_CONTEXT_CLIENT) {
127 win = client->frame->plate;
128 mode = GrabModeSync; /* this is handled in event */
129 mask = ButtonPressMask; /* can't catch more than this with Sync
130 mode the release event is
131 manufactured in event() */
132 } else continue;
133
134 if (grab)
135 grab_button_full(b->button, b->state, win, mask, mode, None);
136 else
137 ungrab_button(b->button, b->state, win);
138 }
139 }
140
141 static void grab_all_clients(gboolean grab)
142 {
143 GList *it;
144
145 for (it = client_list; it != NULL; it = it->next)
146 grab_for_client(it->data, grab);
147 }
148
149 static void clearall()
150 {
151 int i;
152 GSList *it;
153
154 for(i = 0; i < OB_FRAME_NUM_CONTEXTS; ++i) {
155 for (it = bound_contexts[i]; it != NULL; it = it->next) {
156 int j;
157
158 MouseBinding *b = it->data;
159 for (j = 0; j < NUM_MOUSEACTION; ++j) {
160 GSList *it;
161 for (it = b->actions[j]; it; it = it->next) {
162 action_free(it->data);
163 }
164 g_slist_free(b->actions[j]);
165 }
166 g_free(b);
167 }
168 g_slist_free(bound_contexts[i]);
169 }
170 }
171
172 static void fire_button(MouseAction a, ObFrameContext context,
173 ObClient *c, guint state,
174 guint button, int x, int y)
175 {
176 GSList *it;
177 MouseBinding *b;
178
179 for (it = bound_contexts[context]; it != NULL; it = it->next) {
180 b = it->data;
181 if (b->state == state && b->button == button)
182 break;
183 }
184 /* if not bound, then nothing to do! */
185 if (it == NULL) return;
186
187 for (it = b->actions[a]; it; it = it->next) {
188 Action *act = it->data;
189 if (act->func != NULL) {
190 act->data.any.c = c;
191
192 g_assert(act->func != action_moveresize);
193
194 if (act->func == action_showmenu) {
195 act->data.showmenu.x = x;
196 act->data.showmenu.y = y;
197 }
198
199 act->func(&act->data);
200 }
201 }
202 }
203
204 static void fire_motion(MouseAction a, ObFrameContext context, ObClient *c,
205 guint state, guint button, int x_root, int y_root,
206 guint32 corner)
207 {
208 GSList *it;
209 MouseBinding *b;
210
211 for (it = bound_contexts[context]; it != NULL; it = it->next) {
212 b = it->data;
213 if (b->state == state && b->button == button)
214 break;
215 }
216 /* if not bound, then nothing to do! */
217 if (it == NULL) return;
218
219 for (it = b->actions[a]; it; it = it->next) {
220 Action *act = it->data;
221 if (act->func != NULL) {
222 act->data.any.c = c;
223
224 if (act->func == action_moveresize) {
225 act->data.moveresize.x = x_root;
226 act->data.moveresize.y = y_root;
227 act->data.moveresize.button = button;
228 if (!(act->data.moveresize.corner ==
229 prop_atoms.net_wm_moveresize_move ||
230 act->data.moveresize.corner ==
231 prop_atoms.net_wm_moveresize_move_keyboard ||
232 act->data.moveresize.corner ==
233 prop_atoms.net_wm_moveresize_size_keyboard))
234 act->data.moveresize.corner = corner;
235 } else
236 g_assert_not_reached();
237
238 act->func(&act->data);
239 }
240 }
241 }
242
243 static guint32 pick_corner(int x, int y, int cx, int cy, int cw, int ch)
244 {
245 if (x - cx < cw / 2) {
246 if (y - cy < ch / 2)
247 return prop_atoms.net_wm_moveresize_size_topleft;
248 else
249 return prop_atoms.net_wm_moveresize_size_bottomleft;
250 } else {
251 if (y - cy < ch / 2)
252 return prop_atoms.net_wm_moveresize_size_topright;
253 else
254 return prop_atoms.net_wm_moveresize_size_bottomright;
255 }
256 }
257
258 static void event(ObEvent *e, void *foo)
259 {
260 static Time ltime;
261 static guint button = 0, state = 0, lbutton = 0;
262 static int px, py;
263 gboolean click = FALSE;
264 gboolean dclick = FALSE;
265 ObFrameContext context;
266
267 switch (e->type) {
268 case Event_Client_Mapped:
269 grab_for_client(e->data.c.client, TRUE);
270 break;
271
272 case Event_Client_Destroy:
273 grab_for_client(e->data.c.client, FALSE);
274 break;
275
276 case Event_X_ButtonPress:
277 context = frame_context(e->data.x.client,
278 e->data.x.e->xbutton.window);
279
280 px = e->data.x.e->xbutton.x_root;
281 py = e->data.x.e->xbutton.y_root;
282 button = e->data.x.e->xbutton.button;
283 state = e->data.x.e->xbutton.state;
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 == OB_FRAME_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 == OB_FRAME_CONTEXT_MAXIMIZE ||
355 context == OB_FRAME_CONTEXT_ALLDESKTOPS ||
356 context == OB_FRAME_CONTEXT_SHADE ||
357 context == OB_FRAME_CONTEXT_ICONIFY ||
358 context == OB_FRAME_CONTEXT_ICON ||
359 context == OB_FRAME_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 ObFrameContext 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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