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