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/screeninfo.hh"
  18 #include "otk/timerqueuemanager.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 OBScreen;
  27 class OBClient;
  28 class OBActions;
  29 class OBBindings;
  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
  42 //! The main class for the Openbox window manager
  43 /*!
  44   Only a single instance of the Openbox class may be used in the application. A
  45   pointer to this instance is held in the Openbox::instance static member
  46   variable.
  47   Instantiation of this class begins the window manager. After instantiation,
  48   the Openbox::eventLoop function should be called. The eventLoop method does
  49   not exit until the window manager is ready to be destroyed. Destruction of
  50   the Openbox class instance will shutdown the window manager.
  51 */
  52 class Openbox : public otk::OtkEventDispatcher, public otk::OtkEventHandler
  53 {
  54 public:
  55   //! The single instance of the Openbox class for the application
  56   /*!
  57     Since this variable is globally available in the application, the Openbox
  58     class does not need to be passed around to any of the other classes.
  59   */
  60   static Openbox *instance;
  61
  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, OBClient *> ClientMap;
  71
  72   //! A list of OBScreen classes
  73   typedef std::vector<OBScreen *> ScreenList;
  74
  75 private:
  76   // stuff that can be passed on the command line
  77   //! Path to the config file to use/in use
  78   /*!
  79     Defaults to $(HOME)/.openbox/rc3
  80   */
  81   std::string _rcfilepath;
  82   //! Path to the menu file to use/in use
  83   /*!
  84     Defaults to $(HOME)/.openbox/menu3
  85   */
  86   std::string _menufilepath;
  87   //! Path to the script file to execute on startup
  88   /*!
  89     Defaults to $(HOME)/.openbox/user.py
  90   */
  91   std::string _scriptfilepath;
  92   //! The display requested by the user, or null to use the DISPLAY env var
  93   char *_displayreq;
  94   //! The value of argv, i.e. how this application was executed
  95   char **_argv;
  96
  97   //! A list of all managed clients
  98   ClientMap _clients;
  99
 100   //! A list of all the managed screens
 101   ScreenList _screens;
 102
 103   //! Manages all timers for the application
 104   /*!
 105     Use of the otk::OBTimerQueueManager::fire funtion in this object ensures
 106     that all timers fire when their times elapse.
 107   */
 108   otk::OBTimerQueueManager _timermanager;
 109
 110   //! Cached atoms on the display
 111   /*!
 112     This is a pointer because the OBProperty class uses otk::OBDisplay::display
 113     in its constructor, so, it needs to be initialized <b>after</b> the display
 114     is initialized in this class' constructor.
 115   */
 116   otk::OBProperty *_property;
 117
 118   //! The action interface through which all user-available actions occur
 119   OBActions *_actions;
 120
 121   //! The interface through which keys/buttons are grabbed and handled
 122   OBBindings *_bindings;
 123
 124   //! Run the application in synchronous mode? (for debugging)
 125   bool _sync;
 126
 127   //! The running state of the window manager
 128   RunState _state;
 129
 130   //! Mouse cursors used throughout Openbox
 131   Cursors _cursors;
 132
 133   //! When set to true, the Openbox::eventLoop function will stop and return
 134   bool _shutdown;
 135
 136   //! When set to true, and Openbox is about to exit, it will spawn a new
 137   //! process
 138   bool _restart;
 139
 140   //! If this contains anything, a restart will try to execute the program in
 141   //! this variable, and will fallback to reexec'ing itself if that fails
 142   std::string _restart_prog;
 143
 144   //! The client with input focus
 145   /*!
 146     Updated by the clients themselves.
 147   */
 148   OBClient *_focused_client;
 149
 150   //! The screen with input focus
 151   /*!
 152     Updated by the clients when they update the Openbox::focused_client
 153     property.
 154   */
 155   OBScreen *_focused_screen;
 156
 157   //! Parses the command line used when executing this application
 158   void parseCommandLine(int argv, char **argv);
 159   //! Displays the version string to stdout
 160   void showVersion();
 161   //! Displays usage information and help to stdout
 162   void showHelp();
 163
 164   //! Handles signal events for the application
 165   static void signalHandler(int signal);
 166
 167 public:
 168 #ifndef SWIG
 169   //! Openbox constructor.
 170   /*!
 171     \param argc Number of command line arguments, as received in main()
 172     \param argv The command line arguments, as received in main()
 173   */
 174   Openbox(int argc, char **argv);
 175   //! Openbox destructor.
 176   virtual ~Openbox();
 177 #endif
 178
 179   //! Returns the state of the window manager (starting, exiting, etc)
 180   inline RunState state() const { return _state; }
 181
 182   //! Returns the otk::OBTimerQueueManager for the application
 183   /*!
 184     All otk::OBTimer objects used in the application should be made to use this
 185     otk::OBTimerQueueManager.
 186   */
 187   inline otk::OBTimerQueueManager *timerManager() { return &_timermanager; }
 188
 189   //! Returns the otk::OBProperty instance for the window manager
 190   inline const otk::OBProperty *property() const { return _property; }
 191
 192   //! Returns the OBActions instance for the window manager
 193   inline OBActions *actions() const { return _actions; }
 194
 195   //! Returns the OBBindings instance for the window manager
 196   inline OBBindings *bindings() const { return _bindings; }
 197
 198   //! Returns a managed screen
 199   inline OBScreen *screen(int num) {
 200     assert(num >= 0); assert(num < (signed)_screens.size());
 201     if (num >= screenCount())
 202       return NULL;
 203     return _screens[num];
 204   }
 205
 206   //! Returns the number of managed screens
 207   inline int screenCount() const {
 208     return (signed)_screens.size();
 209   }
 210
 211   //! Returns the mouse cursors used throughout Openbox
 212   inline const Cursors &cursors() const { return _cursors; }
 213
 214 #ifndef SWIG
 215   //! The main function of the Openbox class
 216   /*!
 217     This function should be called after instantiating the Openbox class.
 218     It loops indefinately while handling all events for the application.
 219     The Openbox::shutdown method will cause this function to exit.
 220   */
 221   void eventLoop();
 222 #endif
 223
 224   //! Adds an OBClient to the client list for lookups
 225   void addClient(Window window, OBClient *client);
 226
 227   //! Removes an OBClient from the client list for lookups
 228   void removeClient(Window window);
 229
 230   //! Finds an OBClient based on its window id
 231   OBClient *findClient(Window window);
 232
 233   //! The client with input focus
 234   inline OBClient *focusedClient() { return _focused_client; }
 235
 236   //! Change the client which has focus.
 237   /*!
 238     This is called by the clients themselves when their focus state changes.
 239   */
 240   void setFocusedClient(OBClient *c);
 241
 242   //! The screen with input focus
 243   inline OBScreen *focusedScreen() { return _focused_screen; }
 244
 245   //! Requests that the window manager exit
 246   /*!
 247     Causes the Openbox::eventLoop function to stop looping, so that the window
 248     manager can be destroyed.
 249   */
 250   inline void shutdown() { _shutdown = true; }
 251
 252   inline void restart(const std::string &bin = "") {
 253     _shutdown = true; _restart = true; _restart_prog = bin;
 254   }
 255
 256   //! Executes a command on a screen
 257   void execute(int screen, const std::string &bin);
 258 };
 259
 260 }
 261
 262 #endif // __openbox_hh