little bit of an actions overhaul, added action_run* so that duplicated code can...
[mikachu/openbox.git] / openbox / mouse.c
1 #include "openbox.h"
2 #include "config.h"
3 #include "xerror.h"
4 #include "action.h"
5 #include "event.h"
6 #include "client.h"
7 #include "prop.h"
8 #include "grab.h"
9 #include "frame.h"
10 #include "translate.h"
11 #include "mouse.h"
12 #include <glib.h>
13
14 typedef struct {
15     guint state;
16     guint button;
17     GSList *actions[OB_NUM_MOUSE_ACTIONS]; /* lists of Action pointers */
18 } ObMouseBinding;
19
20 #define FRAME_CONTEXT(co, cl) ((cl && cl->type != OB_CLIENT_TYPE_DESKTOP) ? \
21                                co == OB_FRAME_CONTEXT_FRAME : FALSE)
22 #define CLIENT_CONTEXT(co, cl) ((cl && cl->type == OB_CLIENT_TYPE_DESKTOP) ? \
23                                 co == OB_FRAME_CONTEXT_DESKTOP : \
24                                 co == OB_FRAME_CONTEXT_CLIENT)
25
26 /* Array of GSList*s of PointerBinding*s. */
27 static GSList *bound_contexts[OB_FRAME_NUM_CONTEXTS];
28
29 void mouse_grab_for_client(ObClient *client, gboolean grab)
30 {
31     int i;
32     GSList *it;
33
34     for (i = 0; i < OB_FRAME_NUM_CONTEXTS; ++i)
35         for (it = bound_contexts[i]; it != NULL; it = g_slist_next(it)) {
36             /* grab/ungrab the button */
37             ObMouseBinding *b = it->data;
38             Window win;
39             int mode;
40             unsigned int mask;
41
42             if (FRAME_CONTEXT(i, client)) {
43                 win = client->frame->window;
44                 mode = GrabModeAsync;
45                 mask = ButtonPressMask | ButtonMotionMask | ButtonReleaseMask;
46             } else if (CLIENT_CONTEXT(i, client)) {
47                 win = client->frame->plate;
48                 mode = GrabModeSync; /* this is handled in event */
49                 mask = ButtonPressMask; /* can't catch more than this with Sync
50                                            mode the release event is
51                                            manufactured in event() */
52             } else continue;
53
54             if (grab)
55                 grab_button_full(b->button, b->state, win, mask, mode,
56                                  OB_CURSOR_NONE);
57             else
58                 ungrab_button(b->button, b->state, win);
59         }
60 }
61
62 static void grab_all_clients(gboolean grab)
63 {
64     GList *it;
65
66     for (it = client_list; it != NULL; it = it->next)
67         mouse_grab_for_client(it->data, grab);
68 }
69
70 static void clearall()
71 {
72     int i;
73     GSList *it;
74     
75     for(i = 0; i < OB_FRAME_NUM_CONTEXTS; ++i) {
76         for (it = bound_contexts[i]; it != NULL; it = it->next) {
77             ObMouseBinding *b = it->data;
78             int j;
79
80             for (j = 0; j < OB_NUM_MOUSE_ACTIONS; ++j) {
81                 GSList *it;
82
83                 for (it = b->actions[j]; it; it = it->next)
84                     action_free(it->data);
85                 g_slist_free(b->actions[j]);
86             }
87             g_free(b);
88         }
89         g_slist_free(bound_contexts[i]);
90         bound_contexts[i] = NULL;
91     }
92 }
93
94 static gboolean fire_binding(ObMouseAction a, ObFrameContext context,
95                              ObClient *c, guint state,
96                              guint button, int x, int y)
97 {
98     GSList *it;
99     ObMouseBinding *b;
100
101     for (it = bound_contexts[context]; it != NULL; it = it->next) {
102         b = it->data;
103         if (b->state == state && b->button == button)
104             break;
105     }
106     /* if not bound, then nothing to do! */
107     if (it == NULL) return FALSE;
108
109     for (it = b->actions[a]; it; it = it->next)
110         action_run_mouse(it->data, c, context, state, button, x, y);
111     return TRUE;
112 }
113
114 void mouse_event(ObClient *client, ObFrameContext context, XEvent *e)
115 {
116     static Time ltime;
117     static guint button = 0, state = 0, lbutton = 0;
118
119     static Window lwindow = None;
120     static int px, py;
121     gboolean click = FALSE;
122     gboolean dclick = FALSE;
123
124     switch (e->type) {
125     case ButtonPress:
126         px = e->xbutton.x_root;
127         py = e->xbutton.y_root;
128         button = e->xbutton.button;
129         state = e->xbutton.state;
130
131         fire_binding(OB_MOUSE_ACTION_PRESS, context,
132                      client, e->xbutton.state,
133                      e->xbutton.button,
134                      e->xbutton.x_root, e->xbutton.y_root);
135
136         if (CLIENT_CONTEXT(context, client)) {
137             /* Replay the event, so it goes to the client*/
138             XAllowEvents(ob_display, ReplayPointer, event_lasttime);
139             /* Fall through to the release case! */
140         } else
141             break;
142
143     case ButtonRelease:
144         if (e->xbutton.button == button) {
145             /* clicks are only valid if its released over the window */
146             int junk1, junk2;
147             Window wjunk;
148             guint ujunk, b, w, h;
149             xerror_set_ignore(TRUE);
150             junk1 = XGetGeometry(ob_display, e->xbutton.window,
151                                  &wjunk, &junk1, &junk2, &w, &h, &b, &ujunk);
152             xerror_set_ignore(FALSE);
153             if (junk1) {
154                 if (e->xbutton.x >= (signed)-b &&
155                     e->xbutton.y >= (signed)-b &&
156                     e->xbutton.x < (signed)(w+b) &&
157                     e->xbutton.y < (signed)(h+b)) {
158                     click = TRUE;
159                     /* double clicks happen if there were 2 in a row! */
160                     if (lbutton == button &&
161                         lwindow == e->xbutton.window &&
162                         e->xbutton.time - config_mouse_dclicktime <=
163                         ltime) {
164                         dclick = TRUE;
165                         lbutton = 0;
166                     } else {
167                         lbutton = button;
168                         lwindow = e->xbutton.window;
169                     }
170                 } else {
171                     lbutton = 0;
172                     lwindow = None;
173                 }
174             }
175
176             button = 0;
177             state = 0;
178             ltime = e->xbutton.time;
179         }
180         fire_binding(OB_MOUSE_ACTION_RELEASE, context,
181                      client, e->xbutton.state,
182                      e->xbutton.button,
183                      e->xbutton.x_root, e->xbutton.y_root);
184         if (click)
185             fire_binding(OB_MOUSE_ACTION_CLICK, context,
186                          client, e->xbutton.state,
187                          e->xbutton.button,
188                          e->xbutton.x_root,
189                          e->xbutton.y_root);
190         if (dclick)
191             fire_binding(OB_MOUSE_ACTION_DOUBLE_CLICK, context,
192                          client, e->xbutton.state,
193                          e->xbutton.button,
194                          e->xbutton.x_root,
195                          e->xbutton.y_root);
196         break;
197
198     case MotionNotify:
199         if (button) {
200             if (ABS(e->xmotion.x_root - px) >=
201                 config_mouse_threshold ||
202                 ABS(e->xmotion.y_root - py) >=
203                 config_mouse_threshold) {
204
205                 /* You can't drag on buttons */
206                 if (context == OB_FRAME_CONTEXT_MAXIMIZE ||
207                     context == OB_FRAME_CONTEXT_ALLDESKTOPS ||
208                     context == OB_FRAME_CONTEXT_SHADE ||
209                     context == OB_FRAME_CONTEXT_ICONIFY ||
210                     context == OB_FRAME_CONTEXT_ICON ||
211                     context == OB_FRAME_CONTEXT_CLOSE)
212                     break;
213
214                 fire_binding(OB_MOUSE_ACTION_MOTION, context,
215                              client, state, button, px, py);
216                 button = 0;
217                 state = 0;
218             }
219         }
220         break;
221
222     default:
223         g_assert_not_reached();
224     }
225 }
226
227 gboolean mouse_bind(char *buttonstr, char *contextstr, ObMouseAction mact,
228                     ObAction *action)
229 {
230     guint state, button;
231     ObFrameContext context;
232     ObMouseBinding *b;
233     GSList *it;
234
235     if (!translate_button(buttonstr, &state, &button)) {
236         g_warning("invalid button '%s'", buttonstr);
237         return FALSE;
238     }
239
240     contextstr = g_ascii_strdown(contextstr, -1);
241     context = frame_context_from_string(contextstr);
242     if (!context) {
243         g_warning("invalid context '%s'", contextstr);
244         g_free(contextstr);
245         return FALSE;
246     }
247     g_free(contextstr);
248
249     for (it = bound_contexts[context]; it != NULL; it = it->next){
250         b = it->data;
251         if (b->state == state && b->button == button) {
252             b->actions[mact] = g_slist_append(b->actions[mact], action);
253             return TRUE;
254         }
255     }
256
257     /* when there are no modifiers in the binding, then the action cannot
258        be interactive */
259     if (!state && action->data.any.interactive) {
260         action->data.any.interactive = FALSE;
261         action->data.inter.final = TRUE;
262     }
263
264     /* add the binding */
265     b = g_new0(ObMouseBinding, 1);
266     b->state = state;
267     b->button = button;
268     b->actions[mact] = g_slist_append(NULL, action);
269     bound_contexts[context] = g_slist_append(bound_contexts[context], b);
270
271     return TRUE;
272 }
273
274 void mouse_startup(gboolean reconfig)
275 {
276     grab_all_clients(TRUE);
277 }
278
279 void mouse_shutdown(gboolean reconfig)
280 {
281     grab_all_clients(FALSE);
282     clearall();
283 }