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 rootpmapid;
 129   Atom esetrootid;
 130
 131   Atom openbox_premax;
 132   Atom openbox_active_window;
 133 };
 134
 135
 136 //! Provides easy access to window properties.
 137 class Property {
 138 public:
 139
 140   //! The possible types/encodings of strings
 141   enum StringType {
 142     ascii, //!< Standard 8-bit ascii string
 143     utf8,  //!< Utf8-encoded string
 144 #ifndef DOXYGEN_IGNORE
 145     NUM_STRING_TYPE
 146 #endif
 147   };
 148
 149   //! A list of ustrings
 150   typedef std::vector<ustring> StringVect;
 151
 152   //! The value of all atoms on the X server that exist in the
 153   //! Atoms struct
 154   static Atoms atoms;
 155
 156 private:
 157   //! Sets a property on a window
 158   static void set(Window win, Atom atom, Atom type, unsigned char *data,
 159                   int size, int nelements, bool append);
 160   //! Gets a property's value from a window
 161   static bool get(Window win, Atom atom, Atom type,
 162                   unsigned long *nelements, unsigned char **value,
 163                   int size);
 164
 165 public:
 166   //! Initializes the Property class.
 167   /*!
 168     CAUTION: This function uses otk::Display, so ensure that
 169     otk::Display::initialize has been called before initializing this class!
 170   */
 171   static void initialize();
 172
 173   //! Sets a single-value property on a window to a new value
 174   /*!
 175     @param win The window id of the window on which to set the property's value
 176     @param atom The Atom value of the property to set. This can be found in the
 177                 struct returned by Property::atoms.
 178     @param type The Atom value of the property type. This can be found in the
 179                 struct returned by Property::atoms.
 180     @param value The value to set the property to
 181   */
 182   static void set(Window win, Atom atom, Atom type, unsigned long value);
 183   //! Sets an multiple-value property on a window to a new value
 184   /*!
 185     @param win The window id of the window on which to set the property's value
 186     @param atom The Atom value of the property to set. This can be found in the
 187                 struct returned by Property::atoms.
 188     @param type The Atom value of the property type. This can be found in the
 189                 struct returned by Property::atoms.
 190     @param value Any array of values to set the property to. The array must
 191                  contain <i>elements</i> number of elements
 192     @param elements The number of elements in the <i>value</i> array
 193   */
 194   static void set(Window win, Atom atom, Atom type,
 195                   unsigned long value[], int elements);
 196   //! Sets a string property on a window to a new value
 197   /*!
 198     @param win The window id of the window on which to set the property's value
 199     @param atom The Atom value of the property to set. This can be found in the
 200                 struct returned by Property::atoms.
 201     @param type A member of the Property::StringType enum that specifies the
 202                 type of the string the property is being set to
 203     @param value The string to set the property to
 204   */
 205   static void set(Window win, Atom atom, StringType type,
 206                   const ustring &value);
 207   //! Sets a string-array property on a window to a new value
 208   /*!
 209     @param win The window id of the window on which to set the property's value
 210     @param atom The Atom value of the property to set. This can be found in the
 211                 struct returned by Property::atoms.
 212     @param type A member of the Property::StringType enum that specifies the
 213                 type of the string the property is being set to
 214     @param strings A list of strings to set the property to
 215   */
 216   static void set(Window win, Atom atom, StringType type,
 217                   const StringVect &strings);
 218
 219   //! Gets the value of a property on a window
 220   /*!
 221     @param win The window id of the window to get the property value from
 222     @param atom The Atom value of the property to set. This can be found in the
 223                 struct returned by Property::atoms.
 224     @param type The Atom value of the property type. This can be found in the
 225                 struct returned by Property::atoms.
 226     @param nelements The maximum number of elements to retrieve from the
 227                      property (assuming it has more than 1 value in it). To
 228                      retrieve all possible elements, use "(unsigned) -1".<br>
 229                      When the function returns, if it returns true, this will
 230                      contain the actual number of elements retrieved.<br>
 231     @param value If the function returns true, then this contains an array of
 232                  retrieved values for the property.<br>
 233                  The <i>value</i> is allocated inside the function and
 234                  <b>delete[]</b> value needs to be called when you are done
 235                  with it.<br>
 236                  The <i>value</i> array returned is null terminated, and has
 237                  <i>nelements</i> elements in it plus the terminating null.
 238     @return true if retrieval of the specified property with the specified
 239             type was successful; otherwise, false
 240   */
 241   static bool get(Window win, Atom atom, Atom type,
 242                   unsigned long *nelements, unsigned long **value);
 243   //! Gets a single element from the value of a property on a window
 244   /*!
 245     @param win The window id of the window to get the property value from
 246     @param atom The Atom value of the property to set. This can be found in the
 247                 struct returned by Property::atoms.
 248     @param type The Atom value of the property type. This can be found in the
 249                 struct returned by Property::atoms.
 250     @param value If the function returns true, then this contains the first
 251                  (and possibly only) element in the value of the specified
 252                  property.
 253     @return true if retrieval of the specified property with the specified
 254             type was successful; otherwise, false
 255   */
 256   static bool get(Window win, Atom atom, Atom type, unsigned long *value);
 257   //! Gets a single string from the value of a property on a window
 258   /*!
 259     @param win The window id of the window to get the property value from
 260     @param atom The Atom value of the property to set. This can be found in the
 261                 struct returned by Property::atoms.
 262     @param type A member of the Property::StringType enum that specifies the
 263                 type of the string property to retrieve
 264     @param value If the function returns true, then this contains the first
 265                  (and possibly only) string in the value of the specified
 266                  property.
 267     @return true if retrieval of the specified property with the specified
 268             type was successful; otherwise, false
 269   */
 270   static bool get(Window win, Atom atom, StringType type, ustring *value);
 271   //! Gets strings from the value of a property on a window
 272   /*!
 273     @param win The window id of the window to get the property value from
 274     @param atom The Atom value of the property to set. This can be found in the
 275                 struct returned by Property::atoms.
 276     @param type A member of the Property::StringType enum that specifies the
 277                 type of the string property to retrieve
 278     @param nelements The maximum number of strings to retrieve from the
 279                      property (assuming it has more than 1 string in it). To
 280                      retrieve all possible strings, use "(unsigned) -1".<br>
 281                      When the function returns, if it returns true, this will
 282                      contain the actual number of strings retrieved.<br>
 283     @param strings If the function returns true, then this contains all of the
 284                    strings retrieved from the property's value.
 285     @return true if retrieval of the specified property with the specified
 286             type was successful; otherwise, false
 287   */
 288   static bool get(Window win, Atom atom, StringType type,
 289                   unsigned long *nelements, StringVect *strings);
 290
 291   //! Removes a property from a window
 292   /*!
 293     @param win The window id of the window to remove the property from
 294     @param atom The Atom value of the property to set. This can be found in the
 295                 struct returned by Property::atoms.
 296   */
 297   static void erase(Window win, Atom atom);
 298 };
 299
 300 }
 301
 302 #endif // __atom_hh