Dogcows Code - chaz/openbox/blob - otk/property.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 "property.hh"
  12 #include "display.hh"
  13
  14 namespace otk {
  15
  16 OBProperty::OBProperty()
  17 {
  18   assert(OBDisplay::display);
  19
  20   // make sure asserts fire if there is a problem
  21   memset(_atoms, 0, sizeof(_atoms));
  22
  23   _atoms[Atom_Cardinal] = XA_CARDINAL;
  24   _atoms[Atom_Window] = XA_WINDOW;
  25   _atoms[Atom_Pixmap] = XA_PIXMAP;
  26   _atoms[Atom_Atom] = XA_ATOM;
  27   _atoms[Atom_String] = XA_STRING;
  28   _atoms[Atom_Utf8] = 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 OBProperty::~OBProperty()
 153 {
 154 }
 155
 156
 157 /*
 158  * Returns an atom from the Xserver, creating it if necessary.
 159  */
 160 Atom OBProperty::create(const char *name) const
 161 {
 162   return XInternAtom(OBDisplay::display, name, False);
 163 }
 164
 165
 166 /*
 167  * Internal set.
 168  * Sets a window property on a window, optionally appending to the existing
 169  * value.
 170  */
 171 void OBProperty::set(Window win, Atom atom, Atom type,
 172                           unsigned char* data, int size, int nelements,
 173                           bool append) const
 174 {
 175   assert(win != None); assert(atom != None); assert(type != None);
 176   assert(nelements == 0 || (nelements > 0 && data != (unsigned char *) 0));
 177   assert(size == 8 || size == 16 || size == 32);
 178   XChangeProperty(OBDisplay::display, win, atom, type, size,
 179                   (append ? PropModeAppend : PropModeReplace),
 180                   data, nelements);
 181 }
 182
 183
 184 /*
 185  * Set a 32-bit property value on a window.
 186  */
 187 void OBProperty::set(Window win, Atoms atom, Atoms type,
 188                           unsigned long value) const
 189 {
 190   assert(atom >= 0 && atom < NUM_ATOMS);
 191   assert(type >= 0 && type < NUM_ATOMS);
 192   set(win, _atoms[atom], _atoms[type],
 193            reinterpret_cast<unsigned char*>(&value), 32, 1, False);
 194 }
 195
 196
 197 /*
 198  * Set an array of 32-bit properties value on a window.
 199  */
 200 void OBProperty::set(Window win, Atoms atom, Atoms type,
 201                           unsigned long value[], int elements) const
 202 {
 203   assert(atom >= 0 && atom < NUM_ATOMS);
 204   assert(type >= 0 && type < NUM_ATOMS);
 205   set(win, _atoms[atom], _atoms[type],
 206       reinterpret_cast<unsigned char*>(value), 32, elements, False);
 207 }
 208
 209
 210 /*
 211  * Set an string property value on a window.
 212  */
 213 void OBProperty::set(Window win, Atoms atom, StringType type,
 214                           const std::string &value) const
 215 {
 216   assert(atom >= 0 && atom < NUM_ATOMS);
 217   assert(type >= 0 && type < NUM_STRING_TYPE);
 218
 219   Atom t;
 220   switch (type) {
 221   case ascii: t = _atoms[Atom_String]; break;
 222   case utf8:  t = _atoms[Atom_Utf8]; break;
 223   default: assert(False); return; // unhandled StringType
 224   }
 225   set(win, _atoms[atom], t,
 226       reinterpret_cast<unsigned char *>(const_cast<char *>(value.c_str())),
 227       8, value.size() + 1, False); // add 1 to the size to include the null
 228 }
 229
 230
 231 /*
 232  * Set an array of string property values on a window.
 233  */
 234 void OBProperty::set(Window win, Atoms atom, StringType type,
 235                      const StringVect &strings) const
 236 {
 237   assert(atom >= 0 && atom < NUM_ATOMS);
 238   assert(type >= 0 && type < NUM_STRING_TYPE);
 239
 240   Atom t;
 241   switch (type) {
 242   case ascii: t = _atoms[Atom_String]; break;
 243   case utf8:  t = _atoms[Atom_Utf8]; break;
 244   default: assert(False); return; // unhandled StringType
 245   }
 246
 247   std::string value;
 248
 249   StringVect::const_iterator it = strings.begin();
 250   const StringVect::const_iterator end = strings.end();
 251   for (; it != end; ++it)
 252       value += *it + '\0';
 253
 254   set(win, _atoms[atom], t,
 255       reinterpret_cast<unsigned char *>(const_cast<char *>(value.c_str())),
 256       8, value.size(), False);
 257 }
 258
 259
 260 /*
 261  * Internal get function used by all of the typed get functions.
 262  * Gets an property's value from a window.
 263  * Returns True if the property was successfully retrieved; False if the
 264  * property did not exist on the window, or has a different type/size format
 265  * than the user tried to retrieve.
 266  */
 267 bool OBProperty::get(Window win, Atom atom, Atom type,
 268                           unsigned long *nelements, unsigned char **value,
 269                           int size) const
 270 {
 271   assert(win != None); assert(atom != None); assert(type != None);
 272   assert(size == 8 || size == 16 || size == 32);
 273   assert(*nelements > 0);
 274   unsigned char *c_val = 0;        // value alloc'd in Xlib, must be XFree()d
 275   Atom ret_type;
 276   int ret_size;
 277   unsigned long ret_bytes;
 278   int result;
 279   unsigned long maxread = *nelements;
 280   bool ret = False;
 281
 282   // try get the first element
 283   result = XGetWindowProperty(OBDisplay::display, win, atom, 0l, 1l,
 284                               False, AnyPropertyType, &ret_type, &ret_size,
 285                               nelements, &ret_bytes, &c_val);
 286   ret = (result == Success && ret_type == type && ret_size == size &&
 287          *nelements > 0);
 288   if (ret) {
 289     if (ret_bytes == 0 || maxread <= *nelements) {
 290       // we got the whole property's value
 291       *value = new unsigned char[*nelements * size/8 + 1];
 292       memcpy(*value, c_val, *nelements * size/8 + 1);
 293     } else {
 294       // get the entire property since it is larger than one long
 295       XFree(c_val);
 296       // the number of longs that need to be retreived to get the property's
 297       // entire value. The last + 1 is the first long that we retrieved above.
 298       int remain = (ret_bytes - 1)/sizeof(long) + 1 + 1;
 299       if (remain > size/8 * (signed)maxread) // dont get more than the max
 300         remain = size/8 * (signed)maxread;
 301       result = XGetWindowProperty(OBDisplay::display, win, atom, 0l,
 302                                   remain, False, type, &ret_type, &ret_size,
 303                                   nelements, &ret_bytes, &c_val);
 304       ret = (result == Success && ret_type == type && ret_size == size &&
 305              ret_bytes == 0);
 306       /*
 307         If the property has changed type/size, or has grown since our first
 308         read of it, then stop here and try again. If it shrank, then this will
 309         still work.
 310       */
 311       if (! ret)
 312         return get(win, atom, type, &maxread, value, size);
 313
 314       *value = new unsigned char[*nelements * size/8 + 1];
 315       memcpy(*value, c_val, *nelements * size/8 + 1);
 316     }
 317   }
 318   if (c_val) XFree(c_val);
 319   return ret;
 320 }
 321
 322
 323 /*
 324  * Gets a 32-bit property's value from a window.
 325  */
 326 bool OBProperty::get(Window win, Atoms atom, Atoms type,
 327                           unsigned long *nelements,
 328                           unsigned long **value) const
 329 {
 330   assert(atom >= 0 && atom < NUM_ATOMS);
 331   assert(type >= 0 && type < NUM_ATOMS);
 332   return get(win, _atoms[atom], _atoms[type], nelements,
 333                   reinterpret_cast<unsigned char **>(value), 32);
 334 }
 335
 336
 337 /*
 338  * Gets a single 32-bit property's value from a window.
 339  */
 340 bool OBProperty::get(Window win, Atoms atom, Atoms type,
 341                      unsigned long *value) const
 342 {
 343   assert(atom >= 0 && atom < NUM_ATOMS);
 344   assert(type >= 0 && type < NUM_ATOMS);
 345   unsigned long *temp;
 346   unsigned long num = 1;
 347   if (! get(win, _atoms[atom], _atoms[type], &num,
 348                  reinterpret_cast<unsigned char **>(&temp), 32))
 349     return False;
 350   *value = temp[0];
 351   delete [] temp;
 352   return True;
 353 }
 354
 355
 356 /*
 357  * Gets an string property's value from a window.
 358  */
 359 bool OBProperty::get(Window win, Atoms atom, StringType type,
 360                      std::string *value) const
 361 {
 362   unsigned long n = 1;
 363   StringVect s;
 364   if (get(win, atom, type, &n, &s)) {
 365     *value = s[0];
 366     return True;
 367   }
 368   return False;
 369 }
 370
 371
 372 bool OBProperty::get(Window win, Atoms atom, StringType type,
 373                      unsigned long *nelements, StringVect *strings) const
 374 {
 375   assert(atom >= 0 && atom < NUM_ATOMS);
 376   assert(type >= 0 && type < NUM_STRING_TYPE);
 377   assert(win != None); assert(_atoms[atom] != None);
 378   assert(*nelements > 0);
 379
 380   Atom t;
 381   switch (type) {
 382   case ascii: t = _atoms[Atom_String]; break;
 383   case utf8:  t = _atoms[Atom_Utf8]; break;
 384   default: assert(False); return False; // unhandled StringType
 385   }
 386
 387   unsigned char *value;
 388   unsigned long elements = (unsigned) -1;
 389   if (!get(win, _atoms[atom], t, &elements, &value, 8) || elements < 1)
 390     return False;
 391
 392   std::string s(reinterpret_cast<char *>(value), elements);
 393   delete [] value;
 394
 395   std::string::const_iterator it = s.begin(), end = s.end();
 396   unsigned long num = 0;
 397   while(num < *nelements) {
 398     std::string::const_iterator tmp = it; // current string.begin()
 399     it = std::find(tmp, end, '\0');       // look for null between tmp and end
 400     strings->push_back(std::string(tmp, it));   // s[tmp:it)
 401     ++num;
 402     if (it == end) break;
 403     ++it;
 404     if (it == end) break;
 405   }
 406
 407   *nelements = num;
 408
 409   return True;
 410 }
 411
 412
 413 /*
 414  * Removes a property entirely from a window.
 415  */
 416 void OBProperty::erase(Window win, Atoms atom) const
 417 {
 418   assert(atom >= 0 && atom < NUM_ATOMS);
 419   XDeleteProperty(OBDisplay::display, win, _atoms[atom]);
 420 }
 421
 422 }