Dogcows Code - chaz/openbox/blob - src/xatom.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 "xatom.hh"
  12 #include "screen.hh"
  13 #include "util.hh"
  14
  15 namespace ob {
  16
  17 XAtom::XAtom(Display *d) {
  18   _display = d;
  19
  20   // make sure asserts fire if there is a problem
  21   memset(_atoms, 0, sizeof(_atoms));
  22
  23   _atoms[cardinal] = XA_CARDINAL;
  24   _atoms[window] = XA_WINDOW;
  25   _atoms[pixmap] = XA_PIXMAP;
  26   _atoms[atom] = XA_ATOM;
  27   _atoms[string] = XA_STRING;
  28   _atoms[utf8_string] = create("UTF8_STRING");
  29
  30 #ifdef    HAVE_GETPID
  31   _atoms[blackbox_pid] = create("_BLACKBOX_PID");
  32 #endif // HAVE_GETPID
  33
  34   _atoms[wm_colormap_windows] = create("WM_COLORMAP_WINDOWS");
  35   _atoms[wm_protocols] = create("WM_PROTOCOLS");
  36   _atoms[wm_state] = create("WM_STATE");
  37   _atoms[wm_change_state] = create("WM_CHANGE_STATE");
  38   _atoms[wm_delete_window] = create("WM_DELETE_WINDOW");
  39   _atoms[wm_take_focus] = create("WM_TAKE_FOCUS");
  40   _atoms[wm_name] = create("WM_NAME");
  41   _atoms[wm_icon_name] = create("WM_ICON_NAME");
  42   _atoms[wm_class] = create("WM_CLASS");
  43   _atoms[motif_wm_hints] = create("_MOTIF_WM_HINTS");
  44   _atoms[blackbox_hints] = create("_BLACKBOX_HINTS");
  45   _atoms[blackbox_attributes] = create("_BLACKBOX_ATTRIBUTES");
  46   _atoms[blackbox_change_attributes] = create("_BLACKBOX_CHANGE_ATTRIBUTES");
  47   _atoms[blackbox_structure_messages] = create("_BLACKBOX_STRUCTURE_MESSAGES");
  48   _atoms[blackbox_notify_startup] = create("_BLACKBOX_NOTIFY_STARTUP");
  49   _atoms[blackbox_notify_window_add] = create("_BLACKBOX_NOTIFY_WINDOW_ADD");
  50   _atoms[blackbox_notify_window_del] = create("_BLACKBOX_NOTIFY_WINDOW_DEL");
  51   _atoms[blackbox_notify_current_workspace] =
  52     create("_BLACKBOX_NOTIFY_CURRENT_WORKSPACE");
  53   _atoms[blackbox_notify_workspace_count] =
  54     create("_BLACKBOX_NOTIFY_WORKSPACE_COUNT");
  55   _atoms[blackbox_notify_window_focus] =
  56     create("_BLACKBOX_NOTIFY_WINDOW_FOCUS");
  57   _atoms[blackbox_notify_window_raise] =
  58     create("_BLACKBOX_NOTIFY_WINDOW_RAISE");
  59   _atoms[blackbox_notify_window_lower] =
  60     create("_BLACKBOX_NOTIFY_WINDOW_LOWER");
  61
  62   _atoms[blackbox_change_workspace] = create("_BLACKBOX_CHANGE_WORKSPACE");
  63   _atoms[blackbox_change_window_focus] =
  64     create("_BLACKBOX_CHANGE_WINDOW_FOCUS");
  65   _atoms[blackbox_cycle_window_focus] = create("_BLACKBOX_CYCLE_WINDOW_FOCUS");
  66
  67   _atoms[openbox_show_root_menu] = create("_OPENBOX_SHOW_ROOT_MENU");
  68   _atoms[openbox_show_workspace_menu] = create("_OPENBOX_SHOW_WORKSPACE_MENU");
  69
  70   _atoms[net_supported] = create("_NET_SUPPORTED");
  71   _atoms[net_client_list] = create("_NET_CLIENT_LIST");
  72   _atoms[net_client_list_stacking] = create("_NET_CLIENT_LIST_STACKING");
  73   _atoms[net_number_of_desktops] = create("_NET_NUMBER_OF_DESKTOPS");
  74   _atoms[net_desktop_geometry] = create("_NET_DESKTOP_GEOMETRY");
  75   _atoms[net_desktop_viewport] = create("_NET_DESKTOP_VIEWPORT");
  76   _atoms[net_current_desktop] = create("_NET_CURRENT_DESKTOP");
  77   _atoms[net_desktop_names] = create("_NET_DESKTOP_NAMES");
  78   _atoms[net_active_window] = create("_NET_ACTIVE_WINDOW");
  79   _atoms[net_workarea] = create("_NET_WORKAREA");
  80   _atoms[net_supporting_wm_check] = create("_NET_SUPPORTING_WM_CHECK");
  81 //  _atoms[net_virtual_roots] = create("_NET_VIRTUAL_ROOTS");
  82
  83   _atoms[net_close_window] = create("_NET_CLOSE_WINDOW");
  84   _atoms[net_wm_moveresize] = create("_NET_WM_MOVERESIZE");
  85
  86 //  _atoms[net_properties] = create("_NET_PROPERTIES");
  87   _atoms[net_wm_name] = create("_NET_WM_NAME");
  88   _atoms[net_wm_visible_name] = create("_NET_WM_VISIBLE_NAME");
  89   _atoms[net_wm_icon_name] = create("_NET_WM_ICON_NAME");
  90   _atoms[net_wm_visible_icon_name] = create("_NET_WM_VISIBLE_ICON_NAME");
  91   _atoms[net_wm_desktop] = create("_NET_WM_DESKTOP");
  92   _atoms[net_wm_window_type] = create("_NET_WM_WINDOW_TYPE");
  93   _atoms[net_wm_state] = create("_NET_WM_STATE");
  94   _atoms[net_wm_strut] = create("_NET_WM_STRUT");
  95 //  _atoms[net_wm_icon_geometry] = create("_NET_WM_ICON_GEOMETRY");
  96 //  _atoms[net_wm_icon] = create("_NET_WM_ICON");
  97 //  _atoms[net_wm_pid] = create("_NET_WM_PID");
  98 //  _atoms[net_wm_handled_icons] = create("_NET_WM_HANDLED_ICONS");
  99   _atoms[net_wm_allowed_actions] = create("_NET_WM_ALLOWED_ACTIONS");
 100
 101 //  _atoms[net_wm_ping] = create("_NET_WM_PING");
 102
 103   _atoms[net_wm_window_type_desktop] = create("_NET_WM_WINDOW_TYPE_DESKTOP");
 104   _atoms[net_wm_window_type_dock] = create("_NET_WM_WINDOW_TYPE_DOCK");
 105   _atoms[net_wm_window_type_toolbar] = create("_NET_WM_WINDOW_TYPE_TOOLBAR");
 106   _atoms[net_wm_window_type_menu] = create("_NET_WM_WINDOW_TYPE_MENU");
 107   _atoms[net_wm_window_type_utility] = create("_NET_WM_WINDOW_TYPE_UTILITY");
 108   _atoms[net_wm_window_type_splash] = create("_NET_WM_WINDOW_TYPE_SPLASH");
 109   _atoms[net_wm_window_type_dialog] = create("_NET_WM_WINDOW_TYPE_DIALOG");
 110   _atoms[net_wm_window_type_normal] = create("_NET_WM_WINDOW_TYPE_NORMAL");
 111
 112   _atoms[net_wm_moveresize_size_topleft] =
 113     create("_NET_WM_MOVERESIZE_SIZE_TOPLEFT");
 114   _atoms[net_wm_moveresize_size_topright] =
 115     create("_NET_WM_MOVERESIZE_SIZE_TOPRIGHT");
 116   _atoms[net_wm_moveresize_size_bottomleft] =
 117     create("_NET_WM_MOVERESIZE_SIZE_BOTTOMLEFT");
 118   _atoms[net_wm_moveresize_size_bottomright] =
 119     create("_NET_WM_MOVERESIZE_SIZE_BOTTOMRIGHT");
 120   _atoms[net_wm_moveresize_move] =
 121     create("_NET_WM_MOVERESIZE_MOVE");
 122
 123   _atoms[net_wm_action_move] = create("_NET_WM_ACTION_MOVE");
 124   _atoms[net_wm_action_resize] = create("_NET_WM_ACTION_RESIZE");
 125   _atoms[net_wm_action_shade] = create("_NET_WM_ACTION_SHADE");
 126   _atoms[net_wm_action_maximize_horz] = create("_NET_WM_ACTION_MAXIMIZE_HORZ");
 127   _atoms[net_wm_action_maximize_vert] = create("_NET_WM_ACTION_MAXIMIZE_VERT");
 128   _atoms[net_wm_action_change_desktop] =
 129     create("_NET_WM_ACTION_CHANGE_DESKTOP");
 130   _atoms[net_wm_action_close] = create("_NET_WM_ACTION_CLOSE");
 131
 132   _atoms[net_wm_state_modal] = create("_NET_WM_STATE_MODAL");
 133   _atoms[net_wm_state_maximized_vert] = create("_NET_WM_STATE_MAXIMIZED_VERT");
 134   _atoms[net_wm_state_maximized_horz] = create("_NET_WM_STATE_MAXIMIZED_HORZ");
 135   _atoms[net_wm_state_shaded] = create("_NET_WM_STATE_SHADED");
 136   _atoms[net_wm_state_skip_taskbar] = create("_NET_WM_STATE_SKIP_TASKBAR");
 137   _atoms[net_wm_state_skip_pager] = create("_NET_WM_STATE_SKIP_PAGER");
 138   _atoms[net_wm_state_hidden] = create("_NET_WM_STATE_HIDDEN");
 139   _atoms[net_wm_state_fullscreen] = create("_NET_WM_STATE_FULLSCREEN");
 140
 141   _atoms[kde_net_system_tray_windows] = create("_KDE_NET_SYSTEM_TRAY_WINDOWS");
 142   _atoms[kde_net_wm_system_tray_window_for] =
 143     create("_KDE_NET_WM_SYSTEM_TRAY_WINDOW_FOR");
 144   _atoms[kde_net_wm_window_type_override] =
 145     create("_KDE_NET_WM_WINDOW_TYPE_OVERRIDE");
 146 }
 147
 148
 149 /*
 150  * clean up the class' members
 151  */
 152 XAtom::~XAtom() {
 153   while (!_support_windows.empty()) {
 154     // make sure we aren't fucking with this somewhere
 155     assert(_support_windows.back() != None);
 156     XDestroyWindow(_display, _support_windows.back());
 157     _support_windows.pop_back();
 158   }
 159 }
 160
 161
 162 /*
 163  * Returns an atom from the Xserver, creating it if necessary.
 164  */
 165 Atom XAtom::create(const char *name) const {
 166   return XInternAtom(_display, name, False);
 167 }
 168
 169
 170 /*
 171  * Sets which atoms are supported for NETWM, by Openbox, on the root window.
 172  */
 173 void XAtom::setSupported(const otk::ScreenInfo *screen) {
 174   Window root = screen->getRootWindow();
 175
 176   // create the netwm support window
 177   Window w = XCreateSimpleWindow(_display, root, 0, 0, 1, 1, 0, 0, 0);
 178   assert(w != None);
 179   _support_windows.push_back(w);
 180
 181   // set supporting window
 182   setValue(root, net_supporting_wm_check, window, w);
 183
 184   //set properties on the supporting window
 185   setValue(w, net_wm_name, utf8, "Openbox");
 186   setValue(w, net_supporting_wm_check, window, w);
 187
 188   // we don't support any yet..
 189   // yes we do!
 190
 191   Atom supported[] = {
 192     _atoms[net_current_desktop],
 193     _atoms[net_number_of_desktops],
 194     _atoms[net_desktop_geometry],
 195     _atoms[net_desktop_viewport],
 196     _atoms[net_active_window],
 197     _atoms[net_workarea],
 198     _atoms[net_client_list],
 199     _atoms[net_client_list_stacking],
 200     _atoms[net_desktop_names],
 201     _atoms[net_close_window],
 202     _atoms[net_wm_name],
 203     _atoms[net_wm_visible_name],
 204     _atoms[net_wm_icon_name],
 205     _atoms[net_wm_visible_icon_name],
 206     _atoms[net_wm_desktop],
 207     _atoms[net_wm_strut],
 208     _atoms[net_wm_window_type],
 209     _atoms[net_wm_window_type_desktop],
 210     _atoms[net_wm_window_type_dock],
 211     _atoms[net_wm_window_type_toolbar],
 212     _atoms[net_wm_window_type_menu],
 213     _atoms[net_wm_window_type_utility],
 214     _atoms[net_wm_window_type_splash],
 215     _atoms[net_wm_window_type_dialog],
 216     _atoms[net_wm_window_type_normal],
 217     _atoms[net_wm_moveresize],
 218     _atoms[net_wm_moveresize_size_topleft],
 219     _atoms[net_wm_moveresize_size_topright],
 220     _atoms[net_wm_moveresize_size_bottomleft],
 221     _atoms[net_wm_moveresize_size_bottomright],
 222     _atoms[net_wm_moveresize_move],
 223     _atoms[net_wm_allowed_actions],
 224     _atoms[net_wm_action_move],
 225     _atoms[net_wm_action_resize],
 226     _atoms[net_wm_action_shade],
 227     _atoms[net_wm_action_maximize_horz],
 228     _atoms[net_wm_action_maximize_vert],
 229     _atoms[net_wm_action_change_desktop],
 230     _atoms[net_wm_action_close],
 231     _atoms[net_wm_state],
 232     _atoms[net_wm_state_modal],
 233     _atoms[net_wm_state_maximized_vert],
 234     _atoms[net_wm_state_maximized_horz],
 235     _atoms[net_wm_state_shaded],
 236     _atoms[net_wm_state_skip_taskbar],
 237     _atoms[net_wm_state_skip_pager],
 238     _atoms[net_wm_state_hidden],
 239     _atoms[net_wm_state_fullscreen],
 240   };
 241   const int num_supported = sizeof(supported)/sizeof(Atom);
 242
 243   setValue(root, net_supported, atom, supported, num_supported);
 244 }
 245
 246
 247 /*
 248  * Internal setValue.
 249  * Sets a window property on a window, optionally appending to the existing
 250  * value.
 251  */
 252 void XAtom::setValue(Window win, Atom atom, Atom type,
 253                      unsigned char* data, int size, int nelements,
 254                      bool append) const {
 255   assert(win != None); assert(atom != None); assert(type != None);
 256   assert(nelements == 0 || (nelements > 0 && data != (unsigned char *) 0));
 257   assert(size == 8 || size == 16 || size == 32);
 258   XChangeProperty(_display, win, atom, type, size,
 259                   (append ? PropModeAppend : PropModeReplace),
 260                   data, nelements);
 261 }
 262
 263
 264 /*
 265  * Set a 32-bit property value on a window.
 266  */
 267 void XAtom::setValue(Window win, Atoms atom, Atoms type,
 268                      unsigned long value) const {
 269   assert(atom >= 0 && atom < NUM_ATOMS);
 270   assert(type >= 0 && type < NUM_ATOMS);
 271   setValue(win, _atoms[atom], _atoms[type],
 272            reinterpret_cast<unsigned char*>(&value), 32, 1, False);
 273 }
 274
 275
 276 /*
 277  * Set an array of 32-bit properties value on a window.
 278  */
 279 void XAtom::setValue(Window win, Atoms atom, Atoms type,
 280                      unsigned long value[], int elements) const {
 281   assert(atom >= 0 && atom < NUM_ATOMS);
 282   assert(type >= 0 && type < NUM_ATOMS);
 283   setValue(win, _atoms[atom], _atoms[type],
 284            reinterpret_cast<unsigned char*>(value), 32, elements, False);
 285 }
 286
 287
 288 /*
 289  * Set an string property value on a window.
 290  */
 291 void XAtom::setValue(Window win, Atoms atom, StringType type,
 292                      const std::string &value) const {
 293   assert(atom >= 0 && atom < NUM_ATOMS);
 294   assert(type >= 0 && type < NUM_STRING_TYPE);
 295
 296   Atom t;
 297   switch (type) {
 298   case ansi: t = _atoms[string]; break;
 299   case utf8: t = _atoms[utf8_string]; break;
 300   default: assert(False); return; // unhandled StringType
 301   }
 302   setValue(win, _atoms[atom], t,
 303            reinterpret_cast<unsigned char *>(const_cast<char *>(value.c_str())),
 304            8, value.size() + 1, False); // add 1 to the size to include the null
 305 }
 306
 307
 308 /*
 309  * Set an array of string property values on a window.
 310  */
 311 void XAtom::setValue(Window win, Atoms atom, StringType type,
 312                      const StringVect &strings) const {
 313   assert(atom >= 0 && atom < NUM_ATOMS);
 314   assert(type >= 0 && type < NUM_STRING_TYPE);
 315
 316   Atom t;
 317   switch (type) {
 318   case ansi: t = _atoms[string]; break;
 319   case utf8: t = _atoms[utf8_string]; break;
 320   default: assert(False); return; // unhandled StringType
 321   }
 322
 323   std::string value;
 324
 325   StringVect::const_iterator it = strings.begin();
 326   const StringVect::const_iterator end = strings.end();
 327   for (; it != end; ++it)
 328       value += *it + '\0';
 329
 330   setValue(win, _atoms[atom], t,
 331            reinterpret_cast<unsigned char *>(const_cast<char *>(value.c_str())),
 332            8, value.size(), False);
 333 }
 334
 335
 336 /*
 337  * Internal getValue function used by all of the typed getValue functions.
 338  * Gets an property's value from a window.
 339  * Returns True if the property was successfully retrieved; False if the
 340  * property did not exist on the window, or has a different type/size format
 341  * than the user tried to retrieve.
 342  */
 343 bool XAtom::getValue(Window win, Atom atom, Atom type,
 344                      unsigned long &nelements, unsigned char **value,
 345                      int size) const {
 346   assert(win != None); assert(atom != None); assert(type != None);
 347   assert(size == 8 || size == 16 || size == 32);
 348   assert(nelements > 0);
 349   unsigned char *c_val = 0;        // value alloc'd in Xlib, must be XFree()d
 350   Atom ret_type;
 351   int ret_size;
 352   unsigned long ret_bytes;
 353   int result;
 354   unsigned long maxread = nelements;
 355   bool ret = False;
 356
 357   // try get the first element
 358   result = XGetWindowProperty(_display, win, atom, 0l, 1l, False,
 359                               AnyPropertyType, &ret_type, &ret_size,
 360                               &nelements, &ret_bytes, &c_val);
 361   ret = (result == Success && ret_type == type && ret_size == size &&
 362          nelements > 0);
 363   if (ret) {
 364     if (ret_bytes == 0 || maxread <= nelements) {
 365       // we got the whole property's value
 366       *value = new unsigned char[nelements * size/8 + 1];
 367       memcpy(*value, c_val, nelements * size/8 + 1);
 368     } else {
 369       // get the entire property since it is larger than one long
 370       XFree(c_val);
 371       // the number of longs that need to be retreived to get the property's
 372       // entire value. The last + 1 is the first long that we retrieved above.
 373       int remain = (ret_bytes - 1)/sizeof(long) + 1 + 1;
 374       if (remain > size/8 * (signed)maxread) // dont get more than the max
 375         remain = size/8 * (signed)maxread;
 376       result = XGetWindowProperty(_display, win, atom, 0l, remain, False, type,
 377                                   &ret_type, &ret_size, &nelements, &ret_bytes,
 378                                   &c_val);
 379       ret = (result == Success && ret_type == type && ret_size == size &&
 380              ret_bytes == 0);
 381       /*
 382         If the property has changed type/size, or has grown since our first
 383         read of it, then stop here and try again. If it shrank, then this will
 384         still work.
 385       */
 386       if (! ret)
 387         return getValue(win, atom, type, maxread, value, size);
 388
 389       *value = new unsigned char[nelements * size/8 + 1];
 390       memcpy(*value, c_val, nelements * size/8 + 1);
 391     }
 392   }
 393   if (c_val) XFree(c_val);
 394   return ret;
 395 }
 396
 397
 398 /*
 399  * Gets a 32-bit property's value from a window.
 400  */
 401 bool XAtom::getValue(Window win, Atoms atom, Atoms type,
 402                          unsigned long &nelements,
 403                          unsigned long **value) const {
 404   assert(atom >= 0 && atom < NUM_ATOMS);
 405   assert(type >= 0 && type < NUM_ATOMS);
 406   return getValue(win, _atoms[atom], _atoms[type], nelements,
 407                   reinterpret_cast<unsigned char **>(value), 32);
 408 }
 409
 410
 411 /*
 412  * Gets a single 32-bit property's value from a window.
 413  */
 414 bool XAtom::getValue(Window win, Atoms atom, Atoms type,
 415                      unsigned long &value) const {
 416   assert(atom >= 0 && atom < NUM_ATOMS);
 417   assert(type >= 0 && type < NUM_ATOMS);
 418   unsigned long *temp;
 419   unsigned long num = 1;
 420   if (! getValue(win, _atoms[atom], _atoms[type], num,
 421                  reinterpret_cast<unsigned char **>(&temp), 32))
 422     return False;
 423   value = temp[0];
 424   delete [] temp;
 425   return True;
 426 }
 427
 428
 429 /*
 430  * Gets an string property's value from a window.
 431  */
 432 bool XAtom::getValue(Window win, Atoms atom, StringType type,
 433                      std::string &value) const {
 434   unsigned long n = 1;
 435   StringVect s;
 436   if (getValue(win, atom, type, n, s)) {
 437     value = s[0];
 438     return True;
 439   }
 440   return False;
 441 }
 442
 443
 444 bool XAtom::getValue(Window win, Atoms atom, StringType type,
 445                      unsigned long &nelements, StringVect &strings) const {
 446   assert(atom >= 0 && atom < NUM_ATOMS);
 447   assert(type >= 0 && type < NUM_STRING_TYPE);
 448   assert(win != None); assert(_atoms[atom] != None);
 449   assert(nelements > 0);
 450
 451   Atom t;
 452   switch (type) {
 453   case ansi: t = _atoms[string]; break;
 454   case utf8: t = _atoms[utf8_string]; break;
 455   default: assert(False); return False; // unhandled StringType
 456   }
 457
 458   unsigned char *value;
 459   unsigned long elements = (unsigned) -1;
 460   if (!getValue(win, _atoms[atom], t, elements, &value, 8) || elements < 1)
 461     return False;
 462
 463   std::string s(reinterpret_cast<char *>(value), elements);
 464   delete [] value;
 465
 466   std::string::const_iterator it = s.begin(), end = s.end();
 467   unsigned long num = 0;
 468   while(num < nelements) {
 469     std::string::const_iterator tmp = it; // current string.begin()
 470     it = std::find(tmp, end, '\0');       // look for null between tmp and end
 471     strings.push_back(std::string(tmp, it));   // s[tmp:it)
 472     ++num;
 473     if (it == end) break;
 474     ++it;
 475     if (it == end) break;
 476   }
 477
 478   nelements = num;
 479
 480   return True;
 481 }
 482
 483
 484 /*
 485  * Removes a property entirely from a window.
 486  */
 487 void XAtom::eraseValue(Window win, Atoms atom) const {
 488   assert(atom >= 0 && atom < NUM_ATOMS);
 489   XDeleteProperty(_display, win, _atoms[atom]);
 490 }
 491
 492
 493 void XAtom::sendClientMessage(Window target, Atoms type, Window about,
 494                               long data, long data1, long data2,
 495                               long data3, long data4) const {
 496   assert(atom >= 0 && atom < NUM_ATOMS);
 497   assert(target != None);
 498
 499   XEvent e;
 500   e.xclient.type = ClientMessage;
 501   e.xclient.format = 32;
 502   e.xclient.message_type = _atoms[type];
 503   e.xclient.window = about;
 504   e.xclient.data.l[0] = data;
 505   e.xclient.data.l[1] = data1;
 506   e.xclient.data.l[2] = data2;
 507   e.xclient.data.l[3] = data3;
 508   e.xclient.data.l[4] = data4;
 509
 510   XSendEvent(_display, target, False,
 511              SubstructureRedirectMask | SubstructureNotifyMask,
 512              &e);
 513 }
 514
 515 }