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