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Keyboard navigatable menus
[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 if ((n = parse_find_node("dragThreshold", node)))
35 threshold = parse_int(doc, n);
36 if ((n = parse_find_node("doubleClickTime", node)))
37 dclicktime = parse_int(doc, n);
38
39 n = parse_find_node("context", node);
40 while (n) {
41 if (!parse_attr_string("name", n, &contextstr))
42 goto next_n;
43 nbut = parse_find_node("mousebind", n->xmlChildrenNode);
44 while (nbut) {
45 if (!parse_attr_string("button", nbut, &buttonstr))
46 goto next_nbut;
47 if (parse_attr_contains("press", nbut, "action"))
48 mact = MouseAction_Press;
49 else if (parse_attr_contains("release", nbut, "action"))
50 mact = MouseAction_Release;
51 else if (parse_attr_contains("click", nbut, "action"))
52 mact = MouseAction_Click;
53 else if (parse_attr_contains("doubleclick", nbut,"action"))
54 mact = MouseAction_DClick;
55 else if (parse_attr_contains("drag", nbut, "action"))
56 mact = MouseAction_Motion;
57 else
58 goto next_nbut;
59 nact = parse_find_node("action", nbut->xmlChildrenNode);
60 while (nact) {
61 if ((action = action_parse(doc, nact))) {
62 /* validate that its okay for a mouse binding*/
63 if (mact == MouseAction_Motion) {
64 if (action->func != action_moveresize ||
65 action->data.moveresize.corner ==
66 prop_atoms.net_wm_moveresize_move_keyboard ||
67 action->data.moveresize.corner ==
68 prop_atoms.net_wm_moveresize_size_keyboard) {
69 action_free(action);
70 action = NULL;
71 }
72 } else {
73 if (action->func == action_moveresize &&
74 action->data.moveresize.corner !=
75 prop_atoms.net_wm_moveresize_move_keyboard &&
76 action->data.moveresize.corner !=
77 prop_atoms.net_wm_moveresize_size_keyboard) {
78 action_free(action);
79 action = NULL;
80 }
81 }
82 if (action)
83 mbind(buttonstr, contextstr, mact, action);
84 }
85 nact = parse_find_node("action", nact->next);
86 }
87 g_free(buttonstr);
88 next_nbut:
89 nbut = parse_find_node("mousebind", nbut->next);
90 }
91 g_free(contextstr);
92 next_n:
93 n = parse_find_node("context", n->next);
94 }
95 }
96
97 void plugin_setup_config()
98 {
99 threshold = 3;
100 dclicktime = 200;
101 parse_register("mouse", parse_xml, NULL);
102 }
103
104 /* Array of GSList*s of PointerBinding*s. */
105 static GSList *bound_contexts[OB_FRAME_NUM_CONTEXTS];
106
107 static void grab_for_client(ObClient *client, gboolean grab)
108 {
109 int i;
110 GSList *it;
111
112 for (i = 0; i < OB_FRAME_NUM_CONTEXTS; ++i)
113 for (it = bound_contexts[i]; it != NULL; it = it->next) {
114 /* grab/ungrab the button */
115 MouseBinding *b = it->data;
116 Window win;
117 int mode;
118 unsigned int mask;
119
120 if (i == OB_FRAME_CONTEXT_FRAME) {
121 win = client->frame->window;
122 mode = GrabModeAsync;
123 mask = ButtonPressMask | ButtonMotionMask | ButtonReleaseMask;
124 } else if (i == OB_FRAME_CONTEXT_CLIENT) {
125 win = client->frame->plate;
126 mode = GrabModeSync; /* this is handled in event */
127 mask = ButtonPressMask; /* can't catch more than this with Sync
128 mode the release event is
129 manufactured in event() */
130 } else continue;
131
132 if (grab)
133 grab_button_full(b->button, b->state, win, mask, mode, None);
134 else
135 ungrab_button(b->button, b->state, win);
136 }
137 }
138
139 static void grab_all_clients(gboolean grab)
140 {
141 GList *it;
142
143 for (it = client_list; it != NULL; it = it->next)
144 grab_for_client(it->data, grab);
145 }
146
147 static void clearall()
148 {
149 int i;
150 GSList *it;
151
152 for(i = 0; i < OB_FRAME_NUM_CONTEXTS; ++i) {
153 for (it = bound_contexts[i]; it != NULL; it = it->next) {
154 int j;
155
156 MouseBinding *b = it->data;
157 for (j = 0; j < NUM_MOUSEACTION; ++j) {
158 GSList *it;
159 for (it = b->actions[j]; it; it = it->next) {
160 action_free(it->data);
161 }
162 g_slist_free(b->actions[j]);
163 }
164 g_free(b);
165 }
166 g_slist_free(bound_contexts[i]);
167 }
168 }
169
170 static void fire_button(MouseAction a, ObFrameContext context,
171 ObClient *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, ObFrameContext context, ObClient *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 ObFrameContext 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 px = e->data.x.e->xbutton.x_root;
279 py = e->data.x.e->xbutton.y_root;
280 button = e->data.x.e->xbutton.button;
281 state = e->data.x.e->xbutton.state;
282
283 fire_button(MouseAction_Press, context,
284 e->data.x.client, e->data.x.e->xbutton.state,
285 e->data.x.e->xbutton.button,
286 e->data.x.e->xbutton.x_root, e->data.x.e->xbutton.y_root);
287
288 if (context == OB_FRAME_CONTEXT_CLIENT) {
289 /* Replay the event, so it goes to the client*/
290 XAllowEvents(ob_display, ReplayPointer, event_lasttime);
291 /* Fall through to the release case! */
292 } else
293 break;
294
295 case Event_X_ButtonRelease:
296 context = frame_context(e->data.x.client,
297 e->data.x.e->xbutton.window);
298 if (e->data.x.e->xbutton.button == button) {
299 /* clicks are only valid if its released over the window */
300 int junk1, junk2;
301 Window wjunk;
302 guint ujunk, b, w, h;
303 XGetGeometry(ob_display, e->data.x.e->xbutton.window,
304 &wjunk, &junk1, &junk2, &w, &h, &b, &ujunk);
305 if (e->data.x.e->xbutton.x >= (signed)-b &&
306 e->data.x.e->xbutton.y >= (signed)-b &&
307 e->data.x.e->xbutton.x < (signed)(w+b) &&
308 e->data.x.e->xbutton.y < (signed)(h+b)) {
309 click = TRUE;
310 /* double clicks happen if there were 2 in a row! */
311 if (lbutton == button &&
312 e->data.x.e->xbutton.time - dclicktime <= ltime) {
313 dclick = TRUE;
314 lbutton = 0;
315 } else
316 lbutton = button;
317 } else
318 lbutton = 0;
319
320 button = 0;
321 state = 0;
322 ltime = e->data.x.e->xbutton.time;
323 }
324 fire_button(MouseAction_Release, context,
325 e->data.x.client, e->data.x.e->xbutton.state,
326 e->data.x.e->xbutton.button,
327 e->data.x.e->xbutton.x_root, e->data.x.e->xbutton.y_root);
328 if (click)
329 fire_button(MouseAction_Click, context,
330 e->data.x.client, e->data.x.e->xbutton.state,
331 e->data.x.e->xbutton.button,
332 e->data.x.e->xbutton.x_root,
333 e->data.x.e->xbutton.y_root);
334 if (dclick)
335 fire_button(MouseAction_DClick, context,
336 e->data.x.client, e->data.x.e->xbutton.state,
337 e->data.x.e->xbutton.button,
338 e->data.x.e->xbutton.x_root,
339 e->data.x.e->xbutton.y_root);
340 break;
341
342 case Event_X_MotionNotify:
343 if (button) {
344 if (ABS(e->data.x.e->xmotion.x_root - px) >= threshold ||
345 ABS(e->data.x.e->xmotion.y_root - py) >= threshold) {
346 guint32 corner;
347
348 context = frame_context(e->data.x.client,
349 e->data.x.e->xmotion.window);
350
351 /* You can't drag on buttons */
352 if (context == OB_FRAME_CONTEXT_MAXIMIZE ||
353 context == OB_FRAME_CONTEXT_ALLDESKTOPS ||
354 context == OB_FRAME_CONTEXT_SHADE ||
355 context == OB_FRAME_CONTEXT_ICONIFY ||
356 context == OB_FRAME_CONTEXT_ICON ||
357 context == OB_FRAME_CONTEXT_CLOSE)
358 break;
359
360 if (!e->data.x.client)
361 corner = prop_atoms.net_wm_moveresize_size_bottomright;
362 else
363 corner =
364 pick_corner(e->data.x.e->xmotion.x_root,
365 e->data.x.e->xmotion.y_root,
366 e->data.x.client->frame->area.x,
367 e->data.x.client->frame->area.y,
368 /* use the client size because the frame
369 can be differently sized (shaded
370 windows) and we want this based on the
371 clients size */
372 e->data.x.client->area.width +
373 e->data.x.client->frame->size.left +
374 e->data.x.client->frame->size.right,
375 e->data.x.client->area.height +
376 e->data.x.client->frame->size.top +
377 e->data.x.client->frame->size.bottom);
378 fire_motion(MouseAction_Motion, context,
379 e->data.x.client, state, button,
380 e->data.x.e->xmotion.x_root,
381 e->data.x.e->xmotion.y_root, corner);
382 button = 0;
383 state = 0;
384 }
385 }
386 break;
387
388 default:
389 g_assert_not_reached();
390 }
391 }
392
393 gboolean mbind(char *buttonstr, char *contextstr, MouseAction mact,
394 Action *action)
395 {
396 guint state, button;
397 ObFrameContext context;
398 MouseBinding *b;
399 GSList *it;
400
401 if (!translate_button(buttonstr, &state, &button)) {
402 g_warning("invalid button '%s'", buttonstr);
403 return FALSE;
404 }
405
406 contextstr = g_ascii_strdown(contextstr, -1);
407 context = frame_context_from_string(contextstr);
408 if (!context) {
409 g_warning("invalid context '%s'", contextstr);
410 g_free(contextstr);
411 return FALSE;
412 }
413 g_free(contextstr);
414
415 for (it = bound_contexts[context]; it != NULL; it = it->next){
416 b = it->data;
417 if (b->state == state && b->button == button) {
418 b->actions[mact] = g_slist_append(b->actions[mact], action);
419 return TRUE;
420 }
421 }
422
423 grab_all_clients(FALSE);
424
425 /* add the binding */
426 b = g_new0(MouseBinding, 1);
427 b->state = state;
428 b->button = button;
429 b->actions[mact] = g_slist_append(NULL, action);
430 bound_contexts[context] = g_slist_append(bound_contexts[context], b);
431
432 grab_all_clients(TRUE);
433
434 return TRUE;
435 }
436
437 void plugin_startup()
438 {
439 dispatch_register(Event_Client_Mapped | Event_Client_Destroy |
440 Event_X_ButtonPress | Event_X_ButtonRelease |
441 Event_X_MotionNotify, (EventHandler)event, NULL);
442 }
443
444 void plugin_shutdown()
445 {
446 dispatch_register(0, (EventHandler)event, NULL);
447
448 grab_all_clients(FALSE);
449 clearall();
450 }
my patches for the openbox window manager
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