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

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2 #ifndef __binding_hh
   3 #define __binding_hh
   4
   5 /*! @file bindings.hh
   6   @brief I dunno.. some binding stuff?
   7 */
   8
   9 #include "actions.hh"
  10 #include "python.hh"
  11 #include "otk/timer.hh"
  12
  13 extern "C" {
  14 #include <Python.h>
  15 }
  16
  17 #include <string>
  18 #include <list>
  19 #include <vector>
  20
  21 namespace ob {
  22
  23 class Client;
  24
  25 typedef std::list<PyObject *> CallbackList;
  26
  27 typedef struct Binding {
  28   unsigned int modifiers;
  29   unsigned int key;
  30
  31   bool operator==(struct Binding &b2) { return key == b2.key &&
  32                                           modifiers == b2.modifiers; }
  33   bool operator!=(struct Binding &b2) { return key != b2.key ||
  34                                           modifiers != b2.modifiers; }
  35   Binding(unsigned int mod, unsigned int k) { modifiers = mod; key = k; }
  36 } Binding;
  37
  38 typedef struct KeyBindingTree {
  39   Binding binding;
  40   CallbackList callbacks; // the callbacks given for the binding in add()
  41   bool chain;     // true if this is a chain to another key (not an action)
  42
  43   struct KeyBindingTree *next_sibling; // the next binding in the tree at the same
  44                                     // level
  45   struct KeyBindingTree *first_child;  // the first child of this binding (next
  46                                     // binding in a chained sequence).
  47   KeyBindingTree() : binding(0, 0) {
  48     chain = true; next_sibling = first_child = 0;
  49   }
  50 } KeyBindingTree;
  51
  52 typedef struct ButtonBinding {
  53   Binding binding;
  54   CallbackList callbacks[NUM_MOUSE_ACTION];
  55   ButtonBinding() : binding(0, 0) {}
  56 };
  57
  58 class Bindings {
  59 public:
  60   //! A list of strings
  61   typedef std::vector<std::string> StringVect;
  62
  63 private:
  64   // root node of the tree (this doesn't have siblings!)
  65   KeyBindingTree _keytree;
  66   KeyBindingTree *_curpos; // position in the keytree
  67
  68   Binding _resetkey; // the key which resets the key chain status
  69
  70   otk::Timer *_timer;
  71
  72   KeyBindingTree *find(KeyBindingTree *search, bool *conflict) const;
  73   KeyBindingTree *buildtree(const StringVect &keylist,
  74                             PyObject *callback) const;
  75   void assimilate(KeyBindingTree *node);
  76
  77   static void resetChains(Bindings *self); // the timer's timeout function
  78
  79   typedef std::list <ButtonBinding*> ButtonBindingList;
  80   ButtonBindingList _buttons[NUM_MOUSE_CONTEXT];
  81
  82   void grabButton(bool grab, const Binding &b, MouseContext context,
  83                   Client *client);
  84
  85   CallbackList _eventlist[NUM_EVENTS];
  86
  87   PyObject *_keybgrab_callback;
  88
  89 public:
  90   //! Initializes an Bindings object
  91   Bindings();
  92   //! Destroys the Bindings object
  93   virtual ~Bindings();
  94
  95   //! Translates a binding string into the actual Binding
  96   bool translate(const std::string &str, Binding &b, bool askey = true) const;
  97
  98   //! Adds a new key binding
  99   /*!
 100     A binding will fail to be added if the binding already exists (as part of
 101     a chain or not), or if any of the strings in the keylist are invalid.
 102     @return true if the binding could be added; false if it could not.
 103   */
 104   bool addKey(const StringVect &keylist, PyObject *callback);
 105
 106   //! Removes a key binding
 107   /*!
 108     @return The callbackid of the binding, or '< 0' if there was no binding to
 109             be removed.
 110   */
 111   bool removeKey(const StringVect &keylist, PyObject *callback);
 112
 113   //! Removes all key bindings
 114   void removeAllKeys();
 115
 116   void fireKey(int screen, unsigned int modifiers,unsigned int key, Time time,
 117                KeyAction action);
 118
 119   void setResetKey(const std::string &key);
 120
 121   void grabKeys(bool grab);
 122
 123   bool grabKeyboard(int screen, PyObject *callback);
 124   void ungrabKeyboard();
 125
 126   bool addButton(const std::string &but, MouseContext context,
 127                  MouseAction action, PyObject *callback);
 128
 129   void grabButtons(bool grab, Client *client);
 130
 131   //! Removes all button bindings
 132   void removeAllButtons();
 133
 134   void fireButton(MouseData *data);
 135
 136   //! Bind a callback for an event
 137   bool addEvent(EventAction action, PyObject *callback);
 138
 139   //! Unbind the callback function from an event
 140   bool removeEvent(EventAction action, PyObject *callback);
 141
 142   //! Remove all callback functions
 143   void removeAllEvents();
 144
 145   void fireEvent(EventData *data);
 146 };
 147
 148 }
 149
 150 #endif // __binding_hh