Dogcows Code - chaz/openbox/blob - src/openbox.hh

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2 #ifndef   __openbox_hh
   3 #define   __openbox_hh
   4
   5 /*! @file openbox.hh
   6   @brief The main class for the Openbox window manager
   7 */
   8
   9 extern "C" {
  10 #include <X11/Xlib.h>
  11 }
  12
  13 #include <string>
  14 #include <vector>
  15 #include <map>
  16
  17 #include "otk/display.hh"
  18 #include "otk/screeninfo.hh"
  19 #include "otk/property.hh"
  20 #include "otk/configuration.hh"
  21 #include "otk/eventdispatcher.hh"
  22 #include "otk/eventhandler.hh"
  23
  24 namespace ob {
  25
  26 class Screen;
  27 class Client;
  28 class Actions;
  29 class Bindings;
  30
  31 //! Mouse cursors used throughout Openbox
  32 struct Cursors {
  33   Cursor session;  //!< The default mouse cursor
  34   Cursor move;     //!< For moving a window
  35   Cursor ll_angle; //!< For resizing the bottom left corner of a window
  36   Cursor lr_angle; //!< For resizing the bottom right corner of a window
  37   Cursor ul_angle; //!< For resizing the top left corner of a window
  38   Cursor ur_angle; //!< For resizing the right corner of a window
  39 };
  40
  41 class Openbox;
  42
  43 //! The single instance of the Openbox class for the application
  44 /*!
  45   Since this variable is globally available in the application, the Openbox
  46   class does not need to be passed around to any of the other classes.
  47 */
  48 extern Openbox *openbox;
  49
  50 //! The main class for the Openbox window manager
  51 /*!
  52   Only a single instance of the Openbox class may be used in the application. A
  53   pointer to this instance is held in the Openbox::instance static member
  54   variable.
  55   Instantiation of this class begins the window manager. After instantiation,
  56   the Openbox::eventLoop function should be called. The eventLoop method does
  57   not exit until the window manager is ready to be destroyed. Destruction of
  58   the Openbox class instance will shutdown the window manager.
  59 */
  60 class Openbox : public otk::EventDispatcher, public otk::EventHandler
  61 {
  62 public:
  63   //! The posible running states of the window manager
  64   enum RunState {
  65     State_Starting, //!< The window manager is starting up (being created)
  66     State_Normal,   //!< The window manager is running in its normal state
  67     State_Exiting   //!< The window manager is exiting (being destroyed)
  68   };
  69
  70   //! A map for looking up a specific client class from the window id
  71   typedef std::map<Window, Client *> ClientMap;
  72
  73   //! A list of Screen classes
  74   typedef std::vector<Screen *> ScreenList;
  75
  76 private:
  77   //! The display on which Openbox is running
  78   otk::Display _display;
  79
  80   // stuff that can be passed on the command line
  81   //! Path to the config file to use/in use
  82   /*!
  83     Defaults to $(HOME)/.openbox/rc3
  84   */
  85   std::string _rcfilepath;
  86   //! Path to the menu file to use/in use
  87   /*!
  88     Defaults to $(HOME)/.openbox/menu3
  89   */
  90   std::string _menufilepath;
  91   //! Path to the script file to execute on startup
  92   /*!
  93     Defaults to $(HOME)/.openbox/user.py
  94   */
  95   std::string _scriptfilepath;
  96   //! The display requested by the user, or null to use the DISPLAY env var
  97   char *_displayreq;
  98   //! The value of argv, i.e. how this application was executed
  99   char **_argv;
 100   //! Run the application in synchronous mode? (for debugging)
 101   bool _sync;
 102   //! Should Openbox run on a single screen or on all available screens?
 103   bool _single;
 104
 105   //! A list of all managed clients
 106   ClientMap _clients;
 107
 108   //! A list of all the managed screens
 109   ScreenList _screens;
 110
 111   //! Cached atoms on the display
 112   /*!
 113     This is a pointer because the Property class uses otk::Display::display
 114     in its constructor, so, it needs to be initialized <b>after</b> the display
 115     is initialized in this class' constructor.
 116   */
 117   otk::Property *_property;
 118
 119   //! The action interface through which all user-available actions occur
 120   Actions *_actions;
 121
 122   //! The interface through which keys/buttons are grabbed and handled
 123   Bindings *_bindings;
 124
 125   //! The running state of the window manager
 126   RunState _state;
 127
 128   //! Mouse cursors used throughout Openbox
 129   Cursors _cursors;
 130
 131   //! When set to true, the Openbox::eventLoop function will stop and return
 132   bool _shutdown;
 133
 134   //! When set to true, and Openbox is about to exit, it will spawn a new
 135   //! process
 136   bool _restart;
 137
 138   //! If this contains anything, a restart will try to execute the program in
 139   //! this variable, and will fallback to reexec'ing itself if that fails
 140   std::string _restart_prog;
 141
 142   //! The client with input focus
 143   /*!
 144     Updated by the clients themselves.
 145   */
 146   Client *_focused_client;
 147
 148   //! The screen with input focus
 149   /*!
 150     Updated by the clients when they update the Openbox::focused_client
 151     property.
 152   */
 153   Screen *_focused_screen;
 154
 155   //! Parses the command line used when executing this application
 156   void parseCommandLine(int argv, char **argv);
 157   //! Displays the version string to stdout
 158   void showVersion();
 159   //! Displays usage information and help to stdout
 160   void showHelp();
 161
 162   //! Handles signal events for the application
 163   static void signalHandler(int signal);
 164
 165 public:
 166 #ifndef SWIG
 167   //! Openbox constructor.
 168   /*!
 169     \param argc Number of command line arguments, as received in main()
 170     \param argv The command line arguments, as received in main()
 171   */
 172   Openbox(int argc, char **argv);
 173   //! Openbox destructor.
 174   virtual ~Openbox();
 175 #endif
 176
 177   //! Returns the state of the window manager (starting, exiting, etc)
 178   inline RunState state() const { return _state; }
 179
 180   //! Returns the otk::Property instance for the window manager
 181   inline const otk::Property *property() const { return _property; }
 182
 183   //! Returns the Actions instance for the window manager
 184   inline Actions *actions() const { return _actions; }
 185
 186   //! Returns the Bindings instance for the window manager
 187   inline Bindings *bindings() const { return _bindings; }
 188
 189   //! Returns a managed screen
 190   inline Screen *screen(int num) {
 191     assert(num >= 0); assert(num < (signed)_screens.size());
 192     if (num >= screenCount())
 193       return NULL;
 194     return _screens[num];
 195   }
 196
 197   //! Returns the number of managed screens
 198   inline int screenCount() const {
 199     return (signed)_screens.size();
 200   }
 201
 202   //! Returns the mouse cursors used throughout Openbox
 203   inline const Cursors &cursors() const { return _cursors; }
 204
 205 #ifndef SWIG
 206   //! The main function of the Openbox class
 207   /*!
 208     This function should be called after instantiating the Openbox class.
 209     It loops indefinately while handling all events for the application.
 210     The Openbox::shutdown method will cause this function to exit.
 211   */
 212   void eventLoop();
 213 #endif
 214
 215   //! Adds an Client to the client list for lookups
 216   void addClient(Window window, Client *client);
 217
 218   //! Removes an Client from the client list for lookups
 219   void removeClient(Window window);
 220
 221   //! Finds an Client based on its window id
 222   Client *findClient(Window window);
 223
 224   //! The client with input focus
 225   inline Client *focusedClient() { return _focused_client; }
 226
 227   //! Change the client which has focus.
 228   /*!
 229     This is called by the clients themselves when their focus state changes.
 230   */
 231   void setFocusedClient(Client *c);
 232
 233   //! The screen with input focus
 234   inline Screen *focusedScreen() { return _focused_screen; }
 235
 236   //! Requests that the window manager exit
 237   /*!
 238     Causes the Openbox::eventLoop function to stop looping, so that the window
 239     manager can be destroyed.
 240   */
 241   inline void shutdown() { _shutdown = true; }
 242
 243   inline void restart(const std::string &bin = "") {
 244     _shutdown = true; _restart = true; _restart_prog = bin;
 245   }
 246
 247   //! Executes a command on a screen
 248   void execute(int screen, const std::string &bin);
 249 };
 250
 251 }
 252
 253 #endif // __openbox_hh