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 #include "property.hh"
   8 #include "display.hh"
   9
  10 extern "C" {
  11 #include <assert.h>
  12 }
  13
  14 #include <algorithm>
  15
  16 namespace otk {
  17
  18 OBProperty::OBProperty()
  19 {
  20   assert(OBDisplay::display);
  21
  22   // make sure asserts fire if there is a problem
  23   memset(_atoms, 0, sizeof(_atoms));
  24
  25   _atoms[Atom_Cardinal] = XA_CARDINAL;
  26   _atoms[Atom_Window] = XA_WINDOW;
  27   _atoms[Atom_Pixmap] = XA_PIXMAP;
  28   _atoms[Atom_Atom] = XA_ATOM;
  29   _atoms[Atom_String] = XA_STRING;
  30   _atoms[Atom_Utf8] = create("UTF8_STRING");
  31
  32   _atoms[openbox_pid] = create("_OPENBOX_PID");
  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_sticky] = create("_NET_WM_STATE_STICKY");
 134   _atoms[net_wm_state_maximized_vert] = create("_NET_WM_STATE_MAXIMIZED_VERT");
 135   _atoms[net_wm_state_maximized_horz] = create("_NET_WM_STATE_MAXIMIZED_HORZ");
 136   _atoms[net_wm_state_shaded] = create("_NET_WM_STATE_SHADED");
 137   _atoms[net_wm_state_skip_taskbar] = create("_NET_WM_STATE_SKIP_TASKBAR");
 138   _atoms[net_wm_state_skip_pager] = create("_NET_WM_STATE_SKIP_PAGER");
 139   _atoms[net_wm_state_hidden] = create("_NET_WM_STATE_HIDDEN");
 140   _atoms[net_wm_state_fullscreen] = create("_NET_WM_STATE_FULLSCREEN");
 141   _atoms[net_wm_state_above] = create("_NET_WM_STATE_ABOVE");
 142   _atoms[net_wm_state_below] = create("_NET_WM_STATE_BELOW");
 143
 144   _atoms[kde_net_system_tray_windows] = create("_KDE_NET_SYSTEM_TRAY_WINDOWS");
 145   _atoms[kde_net_wm_system_tray_window_for] =
 146     create("_KDE_NET_WM_SYSTEM_TRAY_WINDOW_FOR");
 147   _atoms[kde_net_wm_window_type_override] =
 148     create("_KDE_NET_WM_WINDOW_TYPE_OVERRIDE");
 149 }
 150
 151
 152 /*
 153  * clean up the class' members
 154  */
 155 OBProperty::~OBProperty()
 156 {
 157 }
 158
 159
 160 /*
 161  * Returns an atom from the Xserver, creating it if necessary.
 162  */
 163 Atom OBProperty::create(const char *name) const
 164 {
 165   Atom a = XInternAtom(OBDisplay::display, name, False);
 166   assert(a);
 167   return a;
 168 }
 169
 170
 171 /*
 172  * Internal set.
 173  * Sets a window property on a window, optionally appending to the existing
 174  * value.
 175  */
 176 void OBProperty::set(Window win, Atom atom, Atom type,
 177                           unsigned char* data, int size, int nelements,
 178                           bool append) const
 179 {
 180   assert(win != None); assert(atom != None); assert(type != None);
 181   assert(nelements == 0 || (nelements > 0 && data != (unsigned char *) 0));
 182   assert(size == 8 || size == 16 || size == 32);
 183   XChangeProperty(OBDisplay::display, win, atom, type, size,
 184                   (append ? PropModeAppend : PropModeReplace),
 185                   data, nelements);
 186 }
 187
 188
 189 /*
 190  * Set a 32-bit property value on a window.
 191  */
 192 void OBProperty::set(Window win, Atoms atom, Atoms type,
 193                           unsigned long value) const
 194 {
 195   assert(atom >= 0 && atom < NUM_ATOMS);
 196   assert(type >= 0 && type < NUM_ATOMS);
 197   set(win, _atoms[atom], _atoms[type],
 198            reinterpret_cast<unsigned char*>(&value), 32, 1, False);
 199 }
 200
 201
 202 /*
 203  * Set an array of 32-bit properties value on a window.
 204  */
 205 void OBProperty::set(Window win, Atoms atom, Atoms type,
 206                           unsigned long value[], int elements) const
 207 {
 208   assert(atom >= 0 && atom < NUM_ATOMS);
 209   assert(type >= 0 && type < NUM_ATOMS);
 210   set(win, _atoms[atom], _atoms[type],
 211       reinterpret_cast<unsigned char*>(value), 32, elements, False);
 212 }
 213
 214
 215 /*
 216  * Set an string property value on a window.
 217  */
 218 void OBProperty::set(Window win, Atoms atom, StringType type,
 219                           const std::string &value) const
 220 {
 221   assert(atom >= 0 && atom < NUM_ATOMS);
 222   assert(type >= 0 && type < NUM_STRING_TYPE);
 223
 224   Atom t;
 225   switch (type) {
 226   case ascii: t = _atoms[Atom_String]; break;
 227   case utf8:  t = _atoms[Atom_Utf8]; break;
 228   default: assert(False); return; // unhandled StringType
 229   }
 230   set(win, _atoms[atom], t,
 231       reinterpret_cast<unsigned char *>(const_cast<char *>(value.c_str())),
 232       8, value.size() + 1, False); // add 1 to the size to include the null
 233 }
 234
 235
 236 /*
 237  * Set an array of string property values on a window.
 238  */
 239 void OBProperty::set(Window win, Atoms atom, StringType type,
 240                      const StringVect &strings) const
 241 {
 242   assert(atom >= 0 && atom < NUM_ATOMS);
 243   assert(type >= 0 && type < NUM_STRING_TYPE);
 244
 245   Atom t;
 246   switch (type) {
 247   case ascii: t = _atoms[Atom_String]; break;
 248   case utf8:  t = _atoms[Atom_Utf8]; break;
 249   default: assert(False); return; // unhandled StringType
 250   }
 251
 252   std::string value;
 253
 254   StringVect::const_iterator it = strings.begin();
 255   const StringVect::const_iterator end = strings.end();
 256   for (; it != end; ++it)
 257       value += *it + '\0';
 258
 259   set(win, _atoms[atom], t,
 260       reinterpret_cast<unsigned char *>(const_cast<char *>(value.c_str())),
 261       8, value.size(), False);
 262 }
 263
 264
 265 /*
 266  * Internal get function used by all of the typed get functions.
 267  * Gets an property's value from a window.
 268  * Returns True if the property was successfully retrieved; False if the
 269  * property did not exist on the window, or has a different type/size format
 270  * than the user tried to retrieve.
 271  */
 272 bool OBProperty::get(Window win, Atom atom, Atom type,
 273                           unsigned long *nelements, unsigned char **value,
 274                           int size) const
 275 {
 276   assert(win != None); assert(atom != None); assert(type != None);
 277   assert(size == 8 || size == 16 || size == 32);
 278   assert(*nelements > 0);
 279   unsigned char *c_val = 0;        // value alloc'd in Xlib, must be XFree()d
 280   Atom ret_type;
 281   int ret_size;
 282   unsigned long ret_bytes;
 283   int result;
 284   unsigned long maxread = *nelements;
 285   bool ret = False;
 286
 287   // try get the first element
 288   result = XGetWindowProperty(OBDisplay::display, win, atom, 0l, 1l,
 289                               False, AnyPropertyType, &ret_type, &ret_size,
 290                               nelements, &ret_bytes, &c_val);
 291   ret = (result == Success && ret_type == type && ret_size == size &&
 292          *nelements > 0);
 293   if (ret) {
 294     if (ret_bytes == 0 || maxread <= *nelements) {
 295       // we got the whole property's value
 296       *value = new unsigned char[*nelements * size/8 + 1];
 297       memcpy(*value, c_val, *nelements * size/8 + 1);
 298     } else {
 299       // get the entire property since it is larger than one long
 300       XFree(c_val);
 301       // the number of longs that need to be retreived to get the property's
 302       // entire value. The last + 1 is the first long that we retrieved above.
 303       int remain = (ret_bytes - 1)/sizeof(long) + 1 + 1;
 304       if (remain > size/8 * (signed)maxread) // dont get more than the max
 305         remain = size/8 * (signed)maxread;
 306       result = XGetWindowProperty(OBDisplay::display, win, atom, 0l,
 307                                   remain, False, type, &ret_type, &ret_size,
 308                                   nelements, &ret_bytes, &c_val);
 309       ret = (result == Success && ret_type == type && ret_size == size &&
 310              ret_bytes == 0);
 311       /*
 312         If the property has changed type/size, or has grown since our first
 313         read of it, then stop here and try again. If it shrank, then this will
 314         still work.
 315       */
 316       if (! ret)
 317         return get(win, atom, type, &maxread, value, size);
 318
 319       *value = new unsigned char[*nelements * size/8 + 1];
 320       memcpy(*value, c_val, *nelements * size/8 + 1);
 321     }
 322   }
 323   if (c_val) XFree(c_val);
 324   return ret;
 325 }
 326
 327
 328 /*
 329  * Gets a 32-bit property's value from a window.
 330  */
 331 bool OBProperty::get(Window win, Atoms atom, Atoms type,
 332                           unsigned long *nelements,
 333                           unsigned long **value) const
 334 {
 335   assert(atom >= 0 && atom < NUM_ATOMS);
 336   assert(type >= 0 && type < NUM_ATOMS);
 337   return get(win, _atoms[atom], _atoms[type], nelements,
 338                   reinterpret_cast<unsigned char **>(value), 32);
 339 }
 340
 341
 342 /*
 343  * Gets a single 32-bit property's value from a window.
 344  */
 345 bool OBProperty::get(Window win, Atoms atom, Atoms type,
 346                      unsigned long *value) const
 347 {
 348   assert(atom >= 0 && atom < NUM_ATOMS);
 349   assert(type >= 0 && type < NUM_ATOMS);
 350   unsigned long *temp;
 351   unsigned long num = 1;
 352   if (! get(win, _atoms[atom], _atoms[type], &num,
 353                  reinterpret_cast<unsigned char **>(&temp), 32))
 354     return False;
 355   *value = temp[0];
 356   delete [] temp;
 357   return True;
 358 }
 359
 360
 361 /*
 362  * Gets an string property's value from a window.
 363  */
 364 bool OBProperty::get(Window win, Atoms atom, StringType type,
 365                      std::string *value) const
 366 {
 367   unsigned long n = 1;
 368   StringVect s;
 369   if (get(win, atom, type, &n, &s)) {
 370     *value = s[0];
 371     return True;
 372   }
 373   return False;
 374 }
 375
 376
 377 bool OBProperty::get(Window win, Atoms atom, StringType type,
 378                      unsigned long *nelements, StringVect *strings) const
 379 {
 380   assert(atom >= 0 && atom < NUM_ATOMS);
 381   assert(type >= 0 && type < NUM_STRING_TYPE);
 382   assert(win != None); assert(_atoms[atom] != None);
 383   assert(*nelements > 0);
 384
 385   Atom t;
 386   switch (type) {
 387   case ascii: t = _atoms[Atom_String]; break;
 388   case utf8:  t = _atoms[Atom_Utf8]; break;
 389   default: assert(False); return False; // unhandled StringType
 390   }
 391
 392   unsigned char *value;
 393   unsigned long elements = (unsigned) -1;
 394   if (!get(win, _atoms[atom], t, &elements, &value, 8) || elements < 1)
 395     return False;
 396
 397   std::string s(reinterpret_cast<char *>(value), elements);
 398   delete [] value;
 399
 400   std::string::const_iterator it = s.begin(), end = s.end();
 401   unsigned long num = 0;
 402   while(num < *nelements) {
 403     std::string::const_iterator tmp = it; // current string.begin()
 404     it = std::find(tmp, end, '\0');       // look for null between tmp and end
 405     strings->push_back(std::string(tmp, it));   // s[tmp:it)
 406     ++num;
 407     if (it == end) break;
 408     ++it;
 409     if (it == end) break;
 410   }
 411
 412   *nelements = num;
 413
 414   return True;
 415 }
 416
 417
 418 /*
 419  * Removes a property entirely from a window.
 420  */
 421 void OBProperty::erase(Window win, Atoms atom) const
 422 {
 423   assert(atom >= 0 && atom < NUM_ATOMS);
 424   XDeleteProperty(OBDisplay::display, win, _atoms[atom]);
 425 }
 426
 427 }