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