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->func == action_desktop_dir)
 119             {
 120                 act->data.desktopdir.final = FALSE;
 121                 act->data.desktopdir.cancel = FALSE;
 122             }
 123             if (act->func == action_send_to_desktop_dir)
 124             {
 125                 act->data.sendtodir.final = FALSE;
 126                 act->data.sendtodir.cancel = FALSE;
 127             }
 128
 129             if (config_desktop_popup &&
 130                 (act->func == action_desktop_dir ||
 131                  act->func == action_send_to_desktop_dir))
 132             {
 133                 keyboard_interactive_grab(state, c, context, act);
 134             }
 135
 136             act->func(&act->data);
 137         }
 138     }
 139     return TRUE;
 140 }
 141
 142 static gboolean fire_motion(ObMouseAction a, ObFrameContext context,
 143                             ObClient *c, guint state, guint button,
 144                             int x_root, int y_root, guint32 corner)
 145 {
 146     GSList *it;
 147     ObMouseBinding *b;
 148
 149     for (it = bound_contexts[context]; it != NULL; it = it->next) {
 150         b = it->data;
 151         if (b->state == state && b->button == button)
 152                 break;
 153     }
 154     /* if not bound, then nothing to do! */
 155     if (it == NULL) return FALSE;
 156
 157     for (it = b->actions[a]; it; it = it->next) {
 158         ObAction *act = it->data;
 159         if (act->func != NULL) {
 160             act->data.any.c = c;
 161
 162             if (act->func == action_moveresize) {
 163                 act->data.moveresize.x = x_root;
 164                 act->data.moveresize.y = y_root;
 165                 act->data.moveresize.button = button;
 166                 if (!(act->data.moveresize.corner ==
 167                       prop_atoms.net_wm_moveresize_move ||
 168                       act->data.moveresize.corner ==
 169                       prop_atoms.net_wm_moveresize_move_keyboard ||
 170                       act->data.moveresize.corner ==
 171                       prop_atoms.net_wm_moveresize_size_keyboard))
 172                     act->data.moveresize.corner = corner;
 173             } else
 174                 g_assert_not_reached();
 175
 176             act->func(&act->data);
 177         }
 178     }
 179     return TRUE;
 180 }
 181
 182 static guint32 pick_corner(int x, int y, int cx, int cy, int cw, int ch)
 183 {
 184     if (x - cx < cw / 2) {
 185         if (y - cy < ch / 2)
 186             return prop_atoms.net_wm_moveresize_size_topleft;
 187         else
 188             return prop_atoms.net_wm_moveresize_size_bottomleft;
 189     } else {
 190         if (y - cy < ch / 2)
 191             return prop_atoms.net_wm_moveresize_size_topright;
 192         else
 193             return prop_atoms.net_wm_moveresize_size_bottomright;
 194     }
 195 }
 196
 197 void mouse_event(ObClient *client, ObFrameContext context, XEvent *e)
 198 {
 199     static Time ltime;
 200     static guint button = 0, state = 0, lbutton = 0;
 201
 202     static Window lwindow = None;
 203     static int px, py;
 204     gboolean click = FALSE;
 205     gboolean dclick = FALSE;
 206
 207     switch (e->type) {
 208     case ButtonPress:
 209         px = e->xbutton.x_root;
 210         py = e->xbutton.y_root;
 211         button = e->xbutton.button;
 212         state = e->xbutton.state;
 213
 214         fire_button(OB_MOUSE_ACTION_PRESS, context,
 215                     client, e->xbutton.state,
 216                     e->xbutton.button,
 217                     e->xbutton.x_root, e->xbutton.y_root);
 218
 219         if (CLIENT_CONTEXT(context, client)) {
 220             /* Replay the event, so it goes to the client*/
 221             XAllowEvents(ob_display, ReplayPointer, event_lasttime);
 222             /* Fall through to the release case! */
 223         } else
 224             break;
 225
 226     case ButtonRelease:
 227         if (e->xbutton.button == button) {
 228             /* clicks are only valid if its released over the window */
 229             int junk1, junk2;
 230             Window wjunk;
 231             guint ujunk, b, w, h;
 232             xerror_set_ignore(TRUE);
 233             junk1 = XGetGeometry(ob_display, e->xbutton.window,
 234                                  &wjunk, &junk1, &junk2, &w, &h, &b, &ujunk);
 235             xerror_set_ignore(FALSE);
 236             if (junk1) {
 237                 if (e->xbutton.x >= (signed)-b &&
 238                     e->xbutton.y >= (signed)-b &&
 239                     e->xbutton.x < (signed)(w+b) &&
 240                     e->xbutton.y < (signed)(h+b)) {
 241                     click = TRUE;
 242                     /* double clicks happen if there were 2 in a row! */
 243                     if (lbutton == button &&
 244                         lwindow == e->xbutton.window &&
 245                         e->xbutton.time - config_mouse_dclicktime <=
 246                         ltime) {
 247                         dclick = TRUE;
 248                         lbutton = 0;
 249                     } else {
 250                         lbutton = button;
 251                         lwindow = e->xbutton.window;
 252                     }
 253                 } else {
 254                     lbutton = 0;
 255                     lwindow = None;
 256                 }
 257             }
 258
 259             button = 0;
 260             state = 0;
 261             ltime = e->xbutton.time;
 262         }
 263         fire_button(OB_MOUSE_ACTION_RELEASE, context,
 264                     client, e->xbutton.state,
 265                     e->xbutton.button,
 266                     e->xbutton.x_root, e->xbutton.y_root);
 267         if (click)
 268             fire_button(OB_MOUSE_ACTION_CLICK, context,
 269                         client, e->xbutton.state,
 270                         e->xbutton.button,
 271                         e->xbutton.x_root,
 272                         e->xbutton.y_root);
 273         if (dclick)
 274             fire_button(OB_MOUSE_ACTION_DOUBLE_CLICK, context,
 275                         client, e->xbutton.state,
 276                         e->xbutton.button,
 277                         e->xbutton.x_root,
 278                         e->xbutton.y_root);
 279         break;
 280
 281     case MotionNotify:
 282         if (button) {
 283             if (ABS(e->xmotion.x_root - px) >=
 284                 config_mouse_threshold ||
 285                 ABS(e->xmotion.y_root - py) >=
 286                 config_mouse_threshold) {
 287                 guint32 corner;
 288
 289                 /* You can't drag on buttons */
 290                 if (context == OB_FRAME_CONTEXT_MAXIMIZE ||
 291                     context == OB_FRAME_CONTEXT_ALLDESKTOPS ||
 292                     context == OB_FRAME_CONTEXT_SHADE ||
 293                     context == OB_FRAME_CONTEXT_ICONIFY ||
 294                     context == OB_FRAME_CONTEXT_ICON ||
 295                     context == OB_FRAME_CONTEXT_CLOSE)
 296                     break;
 297
 298                 if (!client)
 299                     corner = prop_atoms.net_wm_moveresize_size_bottomright;
 300                 else
 301                     corner =
 302                         pick_corner(e->xmotion.x_root,
 303                                     e->xmotion.y_root,
 304                                     client->frame->area.x,
 305                                     client->frame->area.y,
 306                                     /* use the client size because the frame
 307                                        can be differently sized (shaded
 308                                        windows) and we want this based on the
 309                                        clients size */
 310                                     client->area.width +
 311                                     client->frame->size.left +
 312                                     client->frame->size.right,
 313                                     client->area.height +
 314                                     client->frame->size.top +
 315                                     client->frame->size.bottom);
 316                 fire_motion(OB_MOUSE_ACTION_MOTION, context,
 317                             client, state, button, px, py, corner);
 318                 button = 0;
 319                 state = 0;
 320             }
 321         }
 322         break;
 323
 324     default:
 325         g_assert_not_reached();
 326     }
 327 }
 328
 329 gboolean mouse_bind(char *buttonstr, char *contextstr, ObMouseAction mact,
 330                     ObAction *action)
 331 {
 332     guint state, button;
 333     ObFrameContext context;
 334     ObMouseBinding *b;
 335     GSList *it;
 336
 337     if (!translate_button(buttonstr, &state, &button)) {
 338         g_warning("invalid button '%s'", buttonstr);
 339         return FALSE;
 340     }
 341
 342     contextstr = g_ascii_strdown(contextstr, -1);
 343     context = frame_context_from_string(contextstr);
 344     if (!context) {
 345         g_warning("invalid context '%s'", contextstr);
 346         g_free(contextstr);
 347         return FALSE;
 348     }
 349     g_free(contextstr);
 350
 351     for (it = bound_contexts[context]; it != NULL; it = it->next){
 352         b = it->data;
 353         if (b->state == state && b->button == button) {
 354             b->actions[mact] = g_slist_append(b->actions[mact], action);
 355             return TRUE;
 356         }
 357     }
 358
 359     grab_all_clients(FALSE);
 360
 361     /* add the binding */
 362     b = g_new0(ObMouseBinding, 1);
 363     b->state = state;
 364     b->button = button;
 365     b->actions[mact] = g_slist_append(NULL, action);
 366     bound_contexts[context] = g_slist_append(bound_contexts[context], b);
 367
 368     grab_all_clients(TRUE);
 369
 370     return TRUE;
 371 }
 372
 373 void mouse_startup()
 374 {
 375 }
 376
 377 void mouse_shutdown()
 378 {
 379     grab_all_clients(FALSE);
 380     clearall();
 381 }