Dogcows Code - chaz/openbox/blob - otk/property.hh

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2 #ifndef   __atom_hh
   3 #define   __atom_hh
   4
   5 /*! @file property.hh
   6   @brief Provides access to window properties
   7 */
   8
   9 #include "ustring.hh"
  10 #include "screeninfo.hh"
  11
  12 extern "C" {
  13 #include <X11/Xlib.h>
  14 }
  15
  16 #include <vector>
  17 #include <cassert>
  18
  19 namespace otk {
  20
  21 //! The atoms on the X server which this class will cache
  22 struct Atoms {
  23   // types
  24   Atom cardinal; //!< The atom which represents the Cardinal data type
  25   Atom window;   //!< The atom which represents window ids
  26   Atom pixmap;   //!< The atom which represents pixmap ids
  27   Atom atom;     //!< The atom which represents atom values
  28   Atom string;   //!< The atom which represents ascii strings
  29   Atom utf8;     //!< The atom which represents utf8-encoded strings
  30
  31   Atom openbox_pid;
  32
  33   // window hints
  34   Atom wm_colormap_windows;
  35   Atom wm_protocols;
  36   Atom wm_state;
  37   Atom wm_delete_window;
  38   Atom wm_take_focus;
  39   Atom wm_change_state;
  40   Atom wm_name;
  41   Atom wm_icon_name;
  42   Atom wm_class;
  43   Atom wm_window_role;
  44   Atom motif_wm_hints;
  45
  46   Atom openbox_show_root_menu;
  47   Atom openbox_show_workspace_menu;
  48
  49   // NETWM atoms
  50   // root window properties
  51   Atom net_supported;
  52   Atom net_client_list;
  53   Atom net_client_list_stacking;
  54   Atom net_number_of_desktops;
  55   Atom net_desktop_geometry;
  56   Atom net_desktop_viewport;
  57   Atom net_current_desktop;
  58   Atom net_desktop_names;
  59   Atom net_active_window;
  60   Atom net_workarea;
  61   Atom net_supporting_wm_check;
  62 //  Atom net_virtual_roots;
  63   Atom net_desktop_layout;
  64   Atom net_showing_desktop;
  65   // root window messages
  66   Atom net_close_window;
  67   Atom net_wm_moveresize;
  68   // application window properties
  69 //  Atom net_properties;
  70   Atom net_wm_name;
  71   Atom net_wm_visible_name;
  72   Atom net_wm_icon_name;
  73   Atom net_wm_visible_icon_name;
  74   Atom net_wm_desktop;
  75   Atom net_wm_window_type;
  76   Atom net_wm_state;
  77   Atom net_wm_strut;
  78 //  Atom net_wm_icon_geometry;
  79   Atom net_wm_icon;
  80 //  Atom net_wm_pid;
  81 //  Atom net_wm_handled_icons;
  82   Atom net_wm_allowed_actions;
  83   // application protocols
  84 //  Atom   Atom net_wm_ping;
  85
  86   Atom net_wm_window_type_desktop;
  87   Atom net_wm_window_type_dock;
  88   Atom net_wm_window_type_toolbar;
  89   Atom net_wm_window_type_menu;
  90   Atom net_wm_window_type_utility;
  91   Atom net_wm_window_type_splash;
  92   Atom net_wm_window_type_dialog;
  93   Atom net_wm_window_type_normal;
  94
  95   Atom net_wm_moveresize_size_topleft;
  96   Atom net_wm_moveresize_size_topright;
  97   Atom net_wm_moveresize_size_bottomleft;
  98   Atom net_wm_moveresize_size_bottomright;
  99   Atom net_wm_moveresize_move;
 100
 101   Atom net_wm_action_move;
 102   Atom net_wm_action_resize;
 103   Atom net_wm_action_minimize;
 104   Atom net_wm_action_shade;
 105   Atom net_wm_action_stick;
 106   Atom net_wm_action_maximize_horz;
 107   Atom net_wm_action_maximize_vert;
 108   Atom net_wm_action_fullscreen;
 109   Atom net_wm_action_change_desktop;
 110   Atom net_wm_action_close;
 111
 112   Atom net_wm_state_modal;
 113   Atom net_wm_state_sticky;
 114   Atom net_wm_state_maximized_vert;
 115   Atom net_wm_state_maximized_horz;
 116   Atom net_wm_state_shaded;
 117   Atom net_wm_state_skip_taskbar;
 118   Atom net_wm_state_skip_pager;
 119   Atom net_wm_state_hidden;
 120   Atom net_wm_state_fullscreen;
 121   Atom net_wm_state_above;
 122   Atom net_wm_state_below;
 123
 124   Atom kde_net_system_tray_windows;
 125   Atom kde_net_wm_system_tray_window_for;
 126   Atom kde_net_wm_window_type_override;
 127
 128   Atom kwm_win_icon;
 129
 130   Atom rootpmapid;
 131   Atom esetrootid;
 132
 133   Atom openbox_premax;
 134   Atom openbox_active_window;
 135 };
 136
 137
 138 //! Provides easy access to window properties.
 139 class Property {
 140 public:
 141
 142   //! The possible types/encodings of strings
 143   enum StringType {
 144     ascii, //!< Standard 8-bit ascii string
 145     utf8,  //!< Utf8-encoded string
 146 #ifndef DOXYGEN_IGNORE
 147     NUM_STRING_TYPE
 148 #endif
 149   };
 150
 151   //! A list of ustrings
 152   typedef std::vector<ustring> StringVect;
 153
 154   //! The value of all atoms on the X server that exist in the
 155   //! Atoms struct
 156   static Atoms atoms;
 157
 158 private:
 159   //! Sets a property on a window
 160   static void set(Window win, Atom atom, Atom type, unsigned char *data,
 161                   int size, int nelements, bool append);
 162   //! Gets a property's value from a window
 163   static bool get(Window win, Atom atom, Atom type,
 164                   unsigned long *nelements, unsigned char **value,
 165                   int size);
 166
 167 public:
 168   //! Initializes the Property class.
 169   /*!
 170     CAUTION: This function uses otk::Display, so ensure that
 171     otk::Display::initialize has been called before initializing this class!
 172   */
 173   static void initialize();
 174
 175   //! Sets a single-value property on a window to a new value
 176   /*!
 177     @param win The window id of the window on which to set the property's value
 178     @param atom The Atom value of the property to set. This can be found in the
 179                 struct returned by Property::atoms.
 180     @param type The Atom value of the property type. This can be found in the
 181                 struct returned by Property::atoms.
 182     @param value The value to set the property to
 183   */
 184   static void set(Window win, Atom atom, Atom type, unsigned long value);
 185   //! Sets an multiple-value property on a window to a new value
 186   /*!
 187     @param win The window id of the window on which to set the property's value
 188     @param atom The Atom value of the property to set. This can be found in the
 189                 struct returned by Property::atoms.
 190     @param type The Atom value of the property type. This can be found in the
 191                 struct returned by Property::atoms.
 192     @param value Any array of values to set the property to. The array must
 193                  contain <i>elements</i> number of elements
 194     @param elements The number of elements in the <i>value</i> array
 195   */
 196   static void set(Window win, Atom atom, Atom type,
 197                   unsigned long value[], int elements);
 198   //! Sets a string property on a window to a new value
 199   /*!
 200     @param win The window id of the window on which to set the property's value
 201     @param atom The Atom value of the property to set. This can be found in the
 202                 struct returned by Property::atoms.
 203     @param type A member of the Property::StringType enum that specifies the
 204                 type of the string the property is being set to
 205     @param value The string to set the property to
 206   */
 207   static void set(Window win, Atom atom, StringType type,
 208                   const ustring &value);
 209   //! Sets a string-array property on a window to a new value
 210   /*!
 211     @param win The window id of the window on which to set the property's value
 212     @param atom The Atom value of the property to set. This can be found in the
 213                 struct returned by Property::atoms.
 214     @param type A member of the Property::StringType enum that specifies the
 215                 type of the string the property is being set to
 216     @param strings A list of strings to set the property to
 217   */
 218   static void set(Window win, Atom atom, StringType type,
 219                   const StringVect &strings);
 220
 221   //! Gets the value of a property on a window
 222   /*!
 223     @param win The window id of the window to get the property value from
 224     @param atom The Atom value of the property to set. This can be found in the
 225                 struct returned by Property::atoms.
 226     @param type The Atom value of the property type. This can be found in the
 227                 struct returned by Property::atoms.
 228     @param nelements The maximum number of elements to retrieve from the
 229                      property (assuming it has more than 1 value in it). To
 230                      retrieve all possible elements, use "(unsigned) -1".<br>
 231                      When the function returns, if it returns true, this will
 232                      contain the actual number of elements retrieved.<br>
 233     @param value If the function returns true, then this contains an array of
 234                  retrieved values for the property.<br>
 235                  The <i>value</i> is allocated inside the function and
 236                  <b>delete[]</b> value needs to be called when you are done
 237                  with it.<br>
 238                  The <i>value</i> array returned is null terminated, and has
 239                  <i>nelements</i> elements in it plus the terminating null.
 240     @return true if retrieval of the specified property with the specified
 241             type was successful; otherwise, false
 242   */
 243   static bool get(Window win, Atom atom, Atom type,
 244                   unsigned long *nelements, unsigned long **value);
 245   //! Gets a single element from the value of a property on a window
 246   /*!
 247     @param win The window id of the window to get the property value from
 248     @param atom The Atom value of the property to set. This can be found in the
 249                 struct returned by Property::atoms.
 250     @param type The Atom value of the property type. This can be found in the
 251                 struct returned by Property::atoms.
 252     @param value If the function returns true, then this contains the first
 253                  (and possibly only) element in the value of the specified
 254                  property.
 255     @return true if retrieval of the specified property with the specified
 256             type was successful; otherwise, false
 257   */
 258   static bool get(Window win, Atom atom, Atom type, unsigned long *value);
 259   //! Gets a single string from the value of a property on a window
 260   /*!
 261     @param win The window id of the window to get the property value from
 262     @param atom The Atom value of the property to set. This can be found in the
 263                 struct returned by Property::atoms.
 264     @param type A member of the Property::StringType enum that specifies the
 265                 type of the string property to retrieve
 266     @param value If the function returns true, then this contains the first
 267                  (and possibly only) string in the value of the specified
 268                  property.
 269     @return true if retrieval of the specified property with the specified
 270             type was successful; otherwise, false
 271   */
 272   static bool get(Window win, Atom atom, StringType type, ustring *value);
 273   //! Gets strings from the value of a property on a window
 274   /*!
 275     @param win The window id of the window to get the property value from
 276     @param atom The Atom value of the property to set. This can be found in the
 277                 struct returned by Property::atoms.
 278     @param type A member of the Property::StringType enum that specifies the
 279                 type of the string property to retrieve
 280     @param nelements The maximum number of strings to retrieve from the
 281                      property (assuming it has more than 1 string in it). To
 282                      retrieve all possible strings, use "(unsigned) -1".<br>
 283                      When the function returns, if it returns true, this will
 284                      contain the actual number of strings retrieved.<br>
 285     @param strings If the function returns true, then this contains all of the
 286                    strings retrieved from the property's value.
 287     @return true if retrieval of the specified property with the specified
 288             type was successful; otherwise, false
 289   */
 290   static bool get(Window win, Atom atom, StringType type,
 291                   unsigned long *nelements, StringVect *strings);
 292
 293   //! Removes a property from a window
 294   /*!
 295     @param win The window id of the window to remove the property from
 296     @param atom The Atom value of the property to set. This can be found in the
 297                 struct returned by Property::atoms.
 298   */
 299   static void erase(Window win, Atom atom);
 300 };
 301
 302 }
 303
 304 #endif // __atom_hh