Dogcows Code - chaz/openbox/blob - src/atom.cc

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2
   3 #ifdef    HAVE_CONFIG_H
   4 #  include "../config.h"
   5 #endif // HAVE_CONFIG_H
   6
   7 extern "C" {
   8 #include <assert.h>
   9 }
  10
  11 #include "atom.hh"
  12 #include "screen.hh"
  13 #include "util.hh"
  14 #include "otk/display.hh"
  15
  16 namespace ob {
  17
  18 OBAtom::OBAtom() {
  19   // make sure asserts fire if there is a problem
  20   memset(_atoms, 0, sizeof(_atoms));
  21
  22   _atoms[cardinal] = XA_CARDINAL;
  23   _atoms[window] = XA_WINDOW;
  24   _atoms[pixmap] = XA_PIXMAP;
  25   _atoms[atom] = XA_ATOM;
  26   _atoms[string] = XA_STRING;
  27   _atoms[utf8_string] = create("UTF8_STRING");
  28
  29 #ifdef    HAVE_GETPID
  30   _atoms[blackbox_pid] = create("_BLACKBOX_PID");
  31 #endif // HAVE_GETPID
  32
  33   _atoms[wm_colormap_windows] = create("WM_COLORMAP_WINDOWS");
  34   _atoms[wm_protocols] = create("WM_PROTOCOLS");
  35   _atoms[wm_state] = create("WM_STATE");
  36   _atoms[wm_change_state] = create("WM_CHANGE_STATE");
  37   _atoms[wm_delete_window] = create("WM_DELETE_WINDOW");
  38   _atoms[wm_take_focus] = create("WM_TAKE_FOCUS");
  39   _atoms[wm_name] = create("WM_NAME");
  40   _atoms[wm_icon_name] = create("WM_ICON_NAME");
  41   _atoms[wm_class] = create("WM_CLASS");
  42   _atoms[motif_wm_hints] = create("_MOTIF_WM_HINTS");
  43   _atoms[blackbox_hints] = create("_BLACKBOX_HINTS");
  44   _atoms[blackbox_attributes] = create("_BLACKBOX_ATTRIBUTES");
  45   _atoms[blackbox_change_attributes] = create("_BLACKBOX_CHANGE_ATTRIBUTES");
  46   _atoms[blackbox_structure_messages] = create("_BLACKBOX_STRUCTURE_MESSAGES");
  47   _atoms[blackbox_notify_startup] = create("_BLACKBOX_NOTIFY_STARTUP");
  48   _atoms[blackbox_notify_window_add] = create("_BLACKBOX_NOTIFY_WINDOW_ADD");
  49   _atoms[blackbox_notify_window_del] = create("_BLACKBOX_NOTIFY_WINDOW_DEL");
  50   _atoms[blackbox_notify_current_workspace] =
  51     create("_BLACKBOX_NOTIFY_CURRENT_WORKSPACE");
  52   _atoms[blackbox_notify_workspace_count] =
  53     create("_BLACKBOX_NOTIFY_WORKSPACE_COUNT");
  54   _atoms[blackbox_notify_window_focus] =
  55     create("_BLACKBOX_NOTIFY_WINDOW_FOCUS");
  56   _atoms[blackbox_notify_window_raise] =
  57     create("_BLACKBOX_NOTIFY_WINDOW_RAISE");
  58   _atoms[blackbox_notify_window_lower] =
  59     create("_BLACKBOX_NOTIFY_WINDOW_LOWER");
  60
  61   _atoms[blackbox_change_workspace] = create("_BLACKBOX_CHANGE_WORKSPACE");
  62   _atoms[blackbox_change_window_focus] =
  63     create("_BLACKBOX_CHANGE_WINDOW_FOCUS");
  64   _atoms[blackbox_cycle_window_focus] = create("_BLACKBOX_CYCLE_WINDOW_FOCUS");
  65
  66   _atoms[openbox_show_root_menu] = create("_OPENBOX_SHOW_ROOT_MENU");
  67   _atoms[openbox_show_workspace_menu] = create("_OPENBOX_SHOW_WORKSPACE_MENU");
  68
  69   _atoms[net_supported] = create("_NET_SUPPORTED");
  70   _atoms[net_client_list] = create("_NET_CLIENT_LIST");
  71   _atoms[net_client_list_stacking] = create("_NET_CLIENT_LIST_STACKING");
  72   _atoms[net_number_of_desktops] = create("_NET_NUMBER_OF_DESKTOPS");
  73   _atoms[net_desktop_geometry] = create("_NET_DESKTOP_GEOMETRY");
  74   _atoms[net_desktop_viewport] = create("_NET_DESKTOP_VIEWPORT");
  75   _atoms[net_current_desktop] = create("_NET_CURRENT_DESKTOP");
  76   _atoms[net_desktop_names] = create("_NET_DESKTOP_NAMES");
  77   _atoms[net_active_window] = create("_NET_ACTIVE_WINDOW");
  78   _atoms[net_workarea] = create("_NET_WORKAREA");
  79   _atoms[net_supporting_wm_check] = create("_NET_SUPPORTING_WM_CHECK");
  80 //  _atoms[net_virtual_roots] = create("_NET_VIRTUAL_ROOTS");
  81
  82   _atoms[net_close_window] = create("_NET_CLOSE_WINDOW");
  83   _atoms[net_wm_moveresize] = create("_NET_WM_MOVERESIZE");
  84
  85 //  _atoms[net_properties] = create("_NET_PROPERTIES");
  86   _atoms[net_wm_name] = create("_NET_WM_NAME");
  87   _atoms[net_wm_visible_name] = create("_NET_WM_VISIBLE_NAME");
  88   _atoms[net_wm_icon_name] = create("_NET_WM_ICON_NAME");
  89   _atoms[net_wm_visible_icon_name] = create("_NET_WM_VISIBLE_ICON_NAME");
  90   _atoms[net_wm_desktop] = create("_NET_WM_DESKTOP");
  91   _atoms[net_wm_window_type] = create("_NET_WM_WINDOW_TYPE");
  92   _atoms[net_wm_state] = create("_NET_WM_STATE");
  93   _atoms[net_wm_strut] = create("_NET_WM_STRUT");
  94 //  _atoms[net_wm_icon_geometry] = create("_NET_WM_ICON_GEOMETRY");
  95 //  _atoms[net_wm_icon] = create("_NET_WM_ICON");
  96 //  _atoms[net_wm_pid] = create("_NET_WM_PID");
  97 //  _atoms[net_wm_handled_icons] = create("_NET_WM_HANDLED_ICONS");
  98   _atoms[net_wm_allowed_actions] = create("_NET_WM_ALLOWED_ACTIONS");
  99
 100 //  _atoms[net_wm_ping] = create("_NET_WM_PING");
 101
 102   _atoms[net_wm_window_type_desktop] = create("_NET_WM_WINDOW_TYPE_DESKTOP");
 103   _atoms[net_wm_window_type_dock] = create("_NET_WM_WINDOW_TYPE_DOCK");
 104   _atoms[net_wm_window_type_toolbar] = create("_NET_WM_WINDOW_TYPE_TOOLBAR");
 105   _atoms[net_wm_window_type_menu] = create("_NET_WM_WINDOW_TYPE_MENU");
 106   _atoms[net_wm_window_type_utility] = create("_NET_WM_WINDOW_TYPE_UTILITY");
 107   _atoms[net_wm_window_type_splash] = create("_NET_WM_WINDOW_TYPE_SPLASH");
 108   _atoms[net_wm_window_type_dialog] = create("_NET_WM_WINDOW_TYPE_DIALOG");
 109   _atoms[net_wm_window_type_normal] = create("_NET_WM_WINDOW_TYPE_NORMAL");
 110
 111   _atoms[net_wm_moveresize_size_topleft] =
 112     create("_NET_WM_MOVERESIZE_SIZE_TOPLEFT");
 113   _atoms[net_wm_moveresize_size_topright] =
 114     create("_NET_WM_MOVERESIZE_SIZE_TOPRIGHT");
 115   _atoms[net_wm_moveresize_size_bottomleft] =
 116     create("_NET_WM_MOVERESIZE_SIZE_BOTTOMLEFT");
 117   _atoms[net_wm_moveresize_size_bottomright] =
 118     create("_NET_WM_MOVERESIZE_SIZE_BOTTOMRIGHT");
 119   _atoms[net_wm_moveresize_move] =
 120     create("_NET_WM_MOVERESIZE_MOVE");
 121
 122   _atoms[net_wm_action_move] = create("_NET_WM_ACTION_MOVE");
 123   _atoms[net_wm_action_resize] = create("_NET_WM_ACTION_RESIZE");
 124   _atoms[net_wm_action_shade] = create("_NET_WM_ACTION_SHADE");
 125   _atoms[net_wm_action_maximize_horz] = create("_NET_WM_ACTION_MAXIMIZE_HORZ");
 126   _atoms[net_wm_action_maximize_vert] = create("_NET_WM_ACTION_MAXIMIZE_VERT");
 127   _atoms[net_wm_action_change_desktop] =
 128     create("_NET_WM_ACTION_CHANGE_DESKTOP");
 129   _atoms[net_wm_action_close] = create("_NET_WM_ACTION_CLOSE");
 130
 131   _atoms[net_wm_state_modal] = create("_NET_WM_STATE_MODAL");
 132   _atoms[net_wm_state_maximized_vert] = create("_NET_WM_STATE_MAXIMIZED_VERT");
 133   _atoms[net_wm_state_maximized_horz] = create("_NET_WM_STATE_MAXIMIZED_HORZ");
 134   _atoms[net_wm_state_shaded] = create("_NET_WM_STATE_SHADED");
 135   _atoms[net_wm_state_skip_taskbar] = create("_NET_WM_STATE_SKIP_TASKBAR");
 136   _atoms[net_wm_state_skip_pager] = create("_NET_WM_STATE_SKIP_PAGER");
 137   _atoms[net_wm_state_hidden] = create("_NET_WM_STATE_HIDDEN");
 138   _atoms[net_wm_state_fullscreen] = create("_NET_WM_STATE_FULLSCREEN");
 139
 140   _atoms[kde_net_system_tray_windows] = create("_KDE_NET_SYSTEM_TRAY_WINDOWS");
 141   _atoms[kde_net_wm_system_tray_window_for] =
 142     create("_KDE_NET_WM_SYSTEM_TRAY_WINDOW_FOR");
 143   _atoms[kde_net_wm_window_type_override] =
 144     create("_KDE_NET_WM_WINDOW_TYPE_OVERRIDE");
 145 }
 146
 147
 148 /*
 149  * clean up the class' members
 150  */
 151 OBAtom::~OBAtom() {
 152   while (!_support_windows.empty()) {
 153     // make sure we aren't fucking with this somewhere
 154     assert(_support_windows.back() != None);
 155     XDestroyWindow(otk::OBDisplay::display, _support_windows.back());
 156     _support_windows.pop_back();
 157   }
 158 }
 159
 160
 161 /*
 162  * Returns an atom from the Xserver, creating it if necessary.
 163  */
 164 Atom OBAtom::create(const char *name) const {
 165   return XInternAtom(otk::OBDisplay::display, name, False);
 166 }
 167
 168
 169 /*
 170  * Sets which atoms are supported for NETWM, by Openbox, on the root window.
 171  */
 172 void OBAtom::setSupported(const otk::ScreenInfo *screen) {
 173   Window root = screen->getRootWindow();
 174
 175   // create the netwm support window
 176   Window w = XCreateSimpleWindow(otk::OBDisplay::display, root, 0, 0, 1, 1, 0, 0, 0);
 177   assert(w != None);
 178   _support_windows.push_back(w);
 179
 180   // set supporting window
 181   setValue(root, net_supporting_wm_check, window, w);
 182
 183   //set properties on the supporting window
 184   setValue(w, net_wm_name, utf8, "Openbox");
 185   setValue(w, net_supporting_wm_check, window, w);
 186
 187   // we don't support any yet..
 188   // yes we do!
 189
 190   Atom supported[] = {
 191     _atoms[net_current_desktop],
 192     _atoms[net_number_of_desktops],
 193     _atoms[net_desktop_geometry],
 194     _atoms[net_desktop_viewport],
 195     _atoms[net_active_window],
 196     _atoms[net_workarea],
 197     _atoms[net_client_list],
 198     _atoms[net_client_list_stacking],
 199     _atoms[net_desktop_names],
 200     _atoms[net_close_window],
 201     _atoms[net_wm_name],
 202     _atoms[net_wm_visible_name],
 203     _atoms[net_wm_icon_name],
 204     _atoms[net_wm_visible_icon_name],
 205     _atoms[net_wm_desktop],
 206     _atoms[net_wm_strut],
 207     _atoms[net_wm_window_type],
 208     _atoms[net_wm_window_type_desktop],
 209     _atoms[net_wm_window_type_dock],
 210     _atoms[net_wm_window_type_toolbar],
 211     _atoms[net_wm_window_type_menu],
 212     _atoms[net_wm_window_type_utility],
 213     _atoms[net_wm_window_type_splash],
 214     _atoms[net_wm_window_type_dialog],
 215     _atoms[net_wm_window_type_normal],
 216     _atoms[net_wm_moveresize],
 217     _atoms[net_wm_moveresize_size_topleft],
 218     _atoms[net_wm_moveresize_size_topright],
 219     _atoms[net_wm_moveresize_size_bottomleft],
 220     _atoms[net_wm_moveresize_size_bottomright],
 221     _atoms[net_wm_moveresize_move],
 222     _atoms[net_wm_allowed_actions],
 223     _atoms[net_wm_action_move],
 224     _atoms[net_wm_action_resize],
 225     _atoms[net_wm_action_shade],
 226     _atoms[net_wm_action_maximize_horz],
 227     _atoms[net_wm_action_maximize_vert],
 228     _atoms[net_wm_action_change_desktop],
 229     _atoms[net_wm_action_close],
 230     _atoms[net_wm_state],
 231     _atoms[net_wm_state_modal],
 232     _atoms[net_wm_state_maximized_vert],
 233     _atoms[net_wm_state_maximized_horz],
 234     _atoms[net_wm_state_shaded],
 235     _atoms[net_wm_state_skip_taskbar],
 236     _atoms[net_wm_state_skip_pager],
 237     _atoms[net_wm_state_hidden],
 238     _atoms[net_wm_state_fullscreen],
 239   };
 240   const int num_supported = sizeof(supported)/sizeof(Atom);
 241
 242   setValue(root, net_supported, atom, supported, num_supported);
 243 }
 244
 245
 246 /*
 247  * Internal setValue.
 248  * Sets a window property on a window, optionally appending to the existing
 249  * value.
 250  */
 251 void OBAtom::setValue(Window win, Atom atom, Atom type,
 252                      unsigned char* data, int size, int nelements,
 253                      bool append) const {
 254   assert(win != None); assert(atom != None); assert(type != None);
 255   assert(nelements == 0 || (nelements > 0 && data != (unsigned char *) 0));
 256   assert(size == 8 || size == 16 || size == 32);
 257   XChangeProperty(otk::OBDisplay::display, win, atom, type, size,
 258                   (append ? PropModeAppend : PropModeReplace),
 259                   data, nelements);
 260 }
 261
 262
 263 /*
 264  * Set a 32-bit property value on a window.
 265  */
 266 void OBAtom::setValue(Window win, Atoms atom, Atoms type,
 267                      unsigned long value) const {
 268   assert(atom >= 0 && atom < NUM_ATOMS);
 269   assert(type >= 0 && type < NUM_ATOMS);
 270   setValue(win, _atoms[atom], _atoms[type],
 271            reinterpret_cast<unsigned char*>(&value), 32, 1, False);
 272 }
 273
 274
 275 /*
 276  * Set an array of 32-bit properties value on a window.
 277  */
 278 void OBAtom::setValue(Window win, Atoms atom, Atoms type,
 279                      unsigned long value[], int elements) const {
 280   assert(atom >= 0 && atom < NUM_ATOMS);
 281   assert(type >= 0 && type < NUM_ATOMS);
 282   setValue(win, _atoms[atom], _atoms[type],
 283            reinterpret_cast<unsigned char*>(value), 32, elements, False);
 284 }
 285
 286
 287 /*
 288  * Set an string property value on a window.
 289  */
 290 void OBAtom::setValue(Window win, Atoms atom, StringType type,
 291                      const std::string &value) const {
 292   assert(atom >= 0 && atom < NUM_ATOMS);
 293   assert(type >= 0 && type < NUM_STRING_TYPE);
 294
 295   Atom t;
 296   switch (type) {
 297   case ansi: t = _atoms[string]; break;
 298   case utf8: t = _atoms[utf8_string]; break;
 299   default: assert(False); return; // unhandled StringType
 300   }
 301   setValue(win, _atoms[atom], t,
 302            reinterpret_cast<unsigned char *>(const_cast<char *>(value.c_str())),
 303            8, value.size() + 1, False); // add 1 to the size to include the null
 304 }
 305
 306
 307 /*
 308  * Set an array of string property values on a window.
 309  */
 310 void OBAtom::setValue(Window win, Atoms atom, StringType type,
 311                      const StringVect &strings) const {
 312   assert(atom >= 0 && atom < NUM_ATOMS);
 313   assert(type >= 0 && type < NUM_STRING_TYPE);
 314
 315   Atom t;
 316   switch (type) {
 317   case ansi: t = _atoms[string]; break;
 318   case utf8: t = _atoms[utf8_string]; break;
 319   default: assert(False); return; // unhandled StringType
 320   }
 321
 322   std::string value;
 323
 324   StringVect::const_iterator it = strings.begin();
 325   const StringVect::const_iterator end = strings.end();
 326   for (; it != end; ++it)
 327       value += *it + '\0';
 328
 329   setValue(win, _atoms[atom], t,
 330            reinterpret_cast<unsigned char *>(const_cast<char *>(value.c_str())),
 331            8, value.size(), False);
 332 }
 333
 334
 335 /*
 336  * Internal getValue function used by all of the typed getValue functions.
 337  * Gets an property's value from a window.
 338  * Returns True if the property was successfully retrieved; False if the
 339  * property did not exist on the window, or has a different type/size format
 340  * than the user tried to retrieve.
 341  */
 342 bool OBAtom::getValue(Window win, Atom atom, Atom type,
 343                      unsigned long &nelements, unsigned char **value,
 344                      int size) const {
 345   assert(win != None); assert(atom != None); assert(type != None);
 346   assert(size == 8 || size == 16 || size == 32);
 347   assert(nelements > 0);
 348   unsigned char *c_val = 0;        // value alloc'd in Xlib, must be XFree()d
 349   Atom ret_type;
 350   int ret_size;
 351   unsigned long ret_bytes;
 352   int result;
 353   unsigned long maxread = nelements;
 354   bool ret = False;
 355
 356   // try get the first element
 357   result = XGetWindowProperty(otk::OBDisplay::display, win, atom, 0l, 1l, False,
 358                               AnyPropertyType, &ret_type, &ret_size,
 359                               &nelements, &ret_bytes, &c_val);
 360   ret = (result == Success && ret_type == type && ret_size == size &&
 361          nelements > 0);
 362   if (ret) {
 363     if (ret_bytes == 0 || maxread <= nelements) {
 364       // we got the whole property's value
 365       *value = new unsigned char[nelements * size/8 + 1];
 366       memcpy(*value, c_val, nelements * size/8 + 1);
 367     } else {
 368       // get the entire property since it is larger than one long
 369       XFree(c_val);
 370       // the number of longs that need to be retreived to get the property's
 371       // entire value. The last + 1 is the first long that we retrieved above.
 372       int remain = (ret_bytes - 1)/sizeof(long) + 1 + 1;
 373       if (remain > size/8 * (signed)maxread) // dont get more than the max
 374         remain = size/8 * (signed)maxread;
 375       result = XGetWindowProperty(otk::OBDisplay::display, win, atom, 0l, remain, False, type,
 376                                   &ret_type, &ret_size, &nelements, &ret_bytes,
 377                                   &c_val);
 378       ret = (result == Success && ret_type == type && ret_size == size &&
 379              ret_bytes == 0);
 380       /*
 381         If the property has changed type/size, or has grown since our first
 382         read of it, then stop here and try again. If it shrank, then this will
 383         still work.
 384       */
 385       if (! ret)
 386         return getValue(win, atom, type, maxread, value, size);
 387
 388       *value = new unsigned char[nelements * size/8 + 1];
 389       memcpy(*value, c_val, nelements * size/8 + 1);
 390     }
 391   }
 392   if (c_val) XFree(c_val);
 393   return ret;
 394 }
 395
 396
 397 /*
 398  * Gets a 32-bit property's value from a window.
 399  */
 400 bool OBAtom::getValue(Window win, Atoms atom, Atoms type,
 401                          unsigned long &nelements,
 402                          unsigned long **value) const {
 403   assert(atom >= 0 && atom < NUM_ATOMS);
 404   assert(type >= 0 && type < NUM_ATOMS);
 405   return getValue(win, _atoms[atom], _atoms[type], nelements,
 406                   reinterpret_cast<unsigned char **>(value), 32);
 407 }
 408
 409
 410 /*
 411  * Gets a single 32-bit property's value from a window.
 412  */
 413 bool OBAtom::getValue(Window win, Atoms atom, Atoms type,
 414                      unsigned long &value) const {
 415   assert(atom >= 0 && atom < NUM_ATOMS);
 416   assert(type >= 0 && type < NUM_ATOMS);
 417   unsigned long *temp;
 418   unsigned long num = 1;
 419   if (! getValue(win, _atoms[atom], _atoms[type], num,
 420                  reinterpret_cast<unsigned char **>(&temp), 32))
 421     return False;
 422   value = temp[0];
 423   delete [] temp;
 424   return True;
 425 }
 426
 427
 428 /*
 429  * Gets an string property's value from a window.
 430  */
 431 bool OBAtom::getValue(Window win, Atoms atom, StringType type,
 432                      std::string &value) const {
 433   unsigned long n = 1;
 434   StringVect s;
 435   if (getValue(win, atom, type, n, s)) {
 436     value = s[0];
 437     return True;
 438   }
 439   return False;
 440 }
 441
 442
 443 bool OBAtom::getValue(Window win, Atoms atom, StringType type,
 444                      unsigned long &nelements, StringVect &strings) const {
 445   assert(atom >= 0 && atom < NUM_ATOMS);
 446   assert(type >= 0 && type < NUM_STRING_TYPE);
 447   assert(win != None); assert(_atoms[atom] != None);
 448   assert(nelements > 0);
 449
 450   Atom t;
 451   switch (type) {
 452   case ansi: t = _atoms[string]; break;
 453   case utf8: t = _atoms[utf8_string]; break;
 454   default: assert(False); return False; // unhandled StringType
 455   }
 456
 457   unsigned char *value;
 458   unsigned long elements = (unsigned) -1;
 459   if (!getValue(win, _atoms[atom], t, elements, &value, 8) || elements < 1)
 460     return False;
 461
 462   std::string s(reinterpret_cast<char *>(value), elements);
 463   delete [] value;
 464
 465   std::string::const_iterator it = s.begin(), end = s.end();
 466   unsigned long num = 0;
 467   while(num < nelements) {
 468     std::string::const_iterator tmp = it; // current string.begin()
 469     it = std::find(tmp, end, '\0');       // look for null between tmp and end
 470     strings.push_back(std::string(tmp, it));   // s[tmp:it)
 471     ++num;
 472     if (it == end) break;
 473     ++it;
 474     if (it == end) break;
 475   }
 476
 477   nelements = num;
 478
 479   return True;
 480 }
 481
 482
 483 /*
 484  * Removes a property entirely from a window.
 485  */
 486 void OBAtom::eraseValue(Window win, Atoms atom) const {
 487   assert(atom >= 0 && atom < NUM_ATOMS);
 488   XDeleteProperty(otk::OBDisplay::display, win, _atoms[atom]);
 489 }
 490
 491
 492 void OBAtom::sendClientMessage(Window target, Atoms type, Window about,
 493                               long data, long data1, long data2,
 494                               long data3, long data4) const {
 495   assert(atom >= 0 && atom < NUM_ATOMS);
 496   assert(target != None);
 497
 498   XEvent e;
 499   e.xclient.type = ClientMessage;
 500   e.xclient.format = 32;
 501   e.xclient.message_type = _atoms[type];
 502   e.xclient.window = about;
 503   e.xclient.data.l[0] = data;
 504   e.xclient.data.l[1] = data1;
 505   e.xclient.data.l[2] = data2;
 506   e.xclient.data.l[3] = data3;
 507   e.xclient.data.l[4] = data4;
 508
 509   XSendEvent(otk::OBDisplay::display, target, False,
 510              SubstructureRedirectMask | SubstructureNotifyMask,
 511              &e);
 512 }
 513
 514 }