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) (co == OB_FRAME_CONTEXT_CLIENT || \
  21                                 (co == OB_FRAME_CONTEXT_ROOT && \
  22                                  cl->type == OB_CLIENT_TYPE_DESKTOP))
  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 }