dont grab client context stuff on desktop windows. check that clint is non-null
[dana/openbox.git] / openbox / mouse.c
1 #include "openbox.h"
2 #include "config.h"
3 #include "action.h"
4 #include "event.h"
5 #include "client.h"
6 #include "prop.h"
7 #include "grab.h"
8 #include "frame.h"
9 #include "translate.h"
10 #include "mouse.h"
11 #include "keyboard.h"
12 #include <glib.h>
13
14 typedef struct {
15     guint state;
16     guint button;
17     GSList *actions[OB_MOUSE_NUM_ACTIONS]; /* lists of Action pointers */
18 } ObMouseBinding;
19
20 #define CLIENT_CONTEXT(co, cl) ((cl && cl->type == OB_CLIENT_TYPE_DESKTOP) ? \
21                                 co == OB_FRAME_CONTEXT_ROOT : \
22                                 co == OB_FRAME_CONTEXT_CLIENT)
23
24 /* Array of GSList*s of PointerBinding*s. */
25 static GSList *bound_contexts[OB_FRAME_NUM_CONTEXTS];
26
27 void mouse_grab_for_client(ObClient *client, gboolean grab)
28 {
29     int i;
30     GSList *it;
31
32     for (i = 0; i < OB_FRAME_NUM_CONTEXTS; ++i)
33         for (it = bound_contexts[i]; it != NULL; it = it->next) {
34             /* grab/ungrab the button */
35             ObMouseBinding *b = it->data;
36             Window win;
37             int mode;
38             unsigned int mask;
39
40             if (i == OB_FRAME_CONTEXT_FRAME) {
41                 win = client->frame->window;
42                 mode = GrabModeAsync;
43                 mask = ButtonPressMask | ButtonMotionMask | ButtonReleaseMask;
44             } else if (CLIENT_CONTEXT(i, client)) {
45                 win = client->frame->plate;
46                 mode = GrabModeSync; /* this is handled in event */
47                 mask = ButtonPressMask; /* can't catch more than this with Sync
48                                            mode the release event is
49                                            manufactured in event() */
50             } else continue;
51
52             if (grab)
53                 grab_button_full(b->button, b->state, win, mask, mode, None);
54             else
55                 ungrab_button(b->button, b->state, win);
56         }
57 }
58
59 static void grab_all_clients(gboolean grab)
60 {
61     GList *it;
62
63     for (it = client_list; it != NULL; it = it->next)
64         mouse_grab_for_client(it->data, grab);
65 }
66
67 static void clearall()
68 {
69     int i;
70     GSList *it;
71     
72     for(i = 0; i < OB_FRAME_NUM_CONTEXTS; ++i) {
73         for (it = bound_contexts[i]; it != NULL; it = it->next) {
74             int j;
75
76             ObMouseBinding *b = it->data;
77             for (j = 0; j < OB_MOUSE_NUM_ACTIONS; ++j) {
78                 GSList *it;
79                 for (it = b->actions[j]; it; it = it->next) {
80                     action_free(it->data);
81                 }
82                 g_slist_free(b->actions[j]);
83             }
84             g_free(b);
85         }
86         g_slist_free(bound_contexts[i]);
87     }
88 }
89
90 static gboolean fire_button(ObMouseAction a, ObFrameContext context,
91                             ObClient *c, guint state,
92                             guint button, int x, int y)
93 {
94     GSList *it;
95     ObMouseBinding *b;
96
97     for (it = bound_contexts[context]; it != NULL; it = it->next) {
98         b = it->data;
99         if (b->state == state && b->button == button)
100             break;
101     }
102     /* if not bound, then nothing to do! */
103     if (it == NULL) return FALSE;
104
105     for (it = b->actions[a]; it; it = it->next) {
106         ObAction *act = it->data;
107         if (act->func != NULL) {
108             act->data.any.c = c;
109
110             g_assert(act->func != action_moveresize);
111
112             if (act->func == action_showmenu) {
113                 act->data.showmenu.x = x;
114                 act->data.showmenu.y = y;
115             }
116
117             if (act->func == action_desktop_dir)
118             {
119                 act->data.desktopdir.final = FALSE;
120                 act->data.desktopdir.cancel = FALSE;
121             }
122             if (act->func == action_send_to_desktop_dir)
123             {
124                 act->data.sendtodir.final = FALSE;
125                 act->data.sendtodir.cancel = FALSE;
126             }
127
128             if (config_desktop_popup &&
129                 (act->func == action_desktop_dir ||
130                  act->func == action_send_to_desktop_dir))
131             {
132                 keyboard_interactive_grab(state, c, context, act);
133             }
134
135             act->func(&act->data);
136         }
137     }
138     return TRUE;
139 }
140
141 static gboolean fire_motion(ObMouseAction a, ObFrameContext context,
142                             ObClient *c, guint state, guint button,
143                             int x_root, int y_root, guint32 corner)
144 {
145     GSList *it;
146     ObMouseBinding *b;
147
148     for (it = bound_contexts[context]; it != NULL; it = it->next) {
149         b = it->data;
150         if (b->state == state && b->button == button)
151                 break;
152     }
153     /* if not bound, then nothing to do! */
154     if (it == NULL) return FALSE;
155
156     for (it = b->actions[a]; it; it = it->next) {
157         ObAction *act = it->data;
158         if (act->func != NULL) {
159             act->data.any.c = c;
160
161             if (act->func == action_moveresize) {
162                 act->data.moveresize.x = x_root;
163                 act->data.moveresize.y = y_root;
164                 act->data.moveresize.button = button;
165                 if (!(act->data.moveresize.corner ==
166                       prop_atoms.net_wm_moveresize_move ||
167                       act->data.moveresize.corner ==
168                       prop_atoms.net_wm_moveresize_move_keyboard ||
169                       act->data.moveresize.corner ==
170                       prop_atoms.net_wm_moveresize_size_keyboard))
171                     act->data.moveresize.corner = corner;
172             } else
173                 g_assert_not_reached();
174
175             act->func(&act->data);
176         }
177     }
178     return TRUE;
179 }
180
181 static guint32 pick_corner(int x, int y, int cx, int cy, int cw, int ch)
182 {
183     if (x - cx < cw / 2) {
184         if (y - cy < ch / 2)
185             return prop_atoms.net_wm_moveresize_size_topleft;
186         else
187             return prop_atoms.net_wm_moveresize_size_bottomleft;
188     } else {
189         if (y - cy < ch / 2)
190             return prop_atoms.net_wm_moveresize_size_topright;
191         else
192             return prop_atoms.net_wm_moveresize_size_bottomright;
193     }
194 }
195
196 void mouse_event(ObClient *client, ObFrameContext context, XEvent *e)
197 {
198     static Time ltime;
199     static guint button = 0, state = 0, lbutton = 0;
200
201     static Window lwindow = None;
202     static int px, py;
203     gboolean click = FALSE;
204     gboolean dclick = FALSE;
205     
206     switch (e->type) {
207     case ButtonPress:
208         px = e->xbutton.x_root;
209         py = e->xbutton.y_root;
210         button = e->xbutton.button;
211         state = e->xbutton.state;
212
213         fire_button(OB_MOUSE_ACTION_PRESS, context,
214                     client, e->xbutton.state,
215                     e->xbutton.button,
216                     e->xbutton.x_root, e->xbutton.y_root);
217
218         if (CLIENT_CONTEXT(context, client)) {
219             /* Replay the event, so it goes to the client*/
220             XAllowEvents(ob_display, ReplayPointer, event_lasttime);
221             /* Fall through to the release case! */
222         } else
223             break;
224
225     case ButtonRelease:
226         if (e->xbutton.button == button) {
227             /* clicks are only valid if its released over the window */
228             int junk1, junk2;
229             Window wjunk;
230             guint ujunk, b, w, h;
231             XGetGeometry(ob_display, e->xbutton.window,
232                          &wjunk, &junk1, &junk2, &w, &h, &b, &ujunk);
233             if (e->xbutton.x >= (signed)-b &&
234                 e->xbutton.y >= (signed)-b &&
235                 e->xbutton.x < (signed)(w+b) &&
236                 e->xbutton.y < (signed)(h+b)) {
237                 click = TRUE;
238                 /* double clicks happen if there were 2 in a row! */
239                 if (lbutton == button &&
240                     lwindow == e->xbutton.window &&
241                     e->xbutton.time - config_mouse_dclicktime <=
242                     ltime) {
243                     dclick = TRUE;
244                     lbutton = 0;
245                 } else {
246                     lbutton = button;
247                     lwindow = e->xbutton.window;
248                 }
249             } else {
250                 lbutton = 0;
251                 lwindow = None;
252             }
253
254             button = 0;
255             state = 0;
256             ltime = e->xbutton.time;
257         }
258         fire_button(OB_MOUSE_ACTION_RELEASE, context,
259                     client, e->xbutton.state,
260                     e->xbutton.button,
261                     e->xbutton.x_root, e->xbutton.y_root);
262         if (click)
263             fire_button(OB_MOUSE_ACTION_CLICK, context,
264                         client, e->xbutton.state,
265                         e->xbutton.button,
266                         e->xbutton.x_root,
267                         e->xbutton.y_root);
268         if (dclick)
269             fire_button(OB_MOUSE_ACTION_DOUBLE_CLICK, context,
270                         client, e->xbutton.state,
271                         e->xbutton.button,
272                         e->xbutton.x_root,
273                         e->xbutton.y_root);
274         break;
275
276     case MotionNotify:
277         if (button) {
278             if (ABS(e->xmotion.x_root - px) >=
279                 config_mouse_threshold ||
280                 ABS(e->xmotion.y_root - py) >=
281                 config_mouse_threshold) {
282                 guint32 corner;
283
284                 /* You can't drag on buttons */
285                 if (context == OB_FRAME_CONTEXT_MAXIMIZE ||
286                     context == OB_FRAME_CONTEXT_ALLDESKTOPS ||
287                     context == OB_FRAME_CONTEXT_SHADE ||
288                     context == OB_FRAME_CONTEXT_ICONIFY ||
289                     context == OB_FRAME_CONTEXT_ICON ||
290                     context == OB_FRAME_CONTEXT_CLOSE)
291                     break;
292
293                 if (!client)
294                     corner = prop_atoms.net_wm_moveresize_size_bottomright;
295                 else
296                     corner =
297                         pick_corner(e->xmotion.x_root,
298                                     e->xmotion.y_root,
299                                     client->frame->area.x,
300                                     client->frame->area.y,
301                                     /* use the client size because the frame
302                                        can be differently sized (shaded
303                                        windows) and we want this based on the
304                                        clients size */
305                                     client->area.width +
306                                     client->frame->size.left +
307                                     client->frame->size.right,
308                                     client->area.height +
309                                     client->frame->size.top +
310                                     client->frame->size.bottom);
311                 fire_motion(OB_MOUSE_ACTION_MOTION, context,
312                             client, state, button, px, py, corner);
313                 button = 0;
314                 state = 0;
315             }
316         }
317         break;
318
319     default:
320         g_assert_not_reached();
321     }
322 }
323
324 gboolean mouse_bind(char *buttonstr, char *contextstr, ObMouseAction mact,
325                     ObAction *action)
326 {
327     guint state, button;
328     ObFrameContext context;
329     ObMouseBinding *b;
330     GSList *it;
331
332     if (!translate_button(buttonstr, &state, &button)) {
333         g_warning("invalid button '%s'", buttonstr);
334         return FALSE;
335     }
336
337     contextstr = g_ascii_strdown(contextstr, -1);
338     context = frame_context_from_string(contextstr);
339     if (!context) {
340         g_warning("invalid context '%s'", contextstr);
341         g_free(contextstr);
342         return FALSE;
343     }
344     g_free(contextstr);
345
346     for (it = bound_contexts[context]; it != NULL; it = it->next){
347         b = it->data;
348         if (b->state == state && b->button == button) {
349             b->actions[mact] = g_slist_append(b->actions[mact], action);
350             return TRUE;
351         }
352     }
353
354     grab_all_clients(FALSE);
355
356     /* add the binding */
357     b = g_new0(ObMouseBinding, 1);
358     b->state = state;
359     b->button = button;
360     b->actions[mact] = g_slist_append(NULL, action);
361     bound_contexts[context] = g_slist_append(bound_contexts[context], b);
362
363     grab_all_clients(TRUE);
364
365     return TRUE;
366 }
367
368 void mouse_startup()
369 {
370 }
371
372 void mouse_shutdown()
373 {
374     grab_all_clients(FALSE);
375     clearall();
376 }