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 #include <string>
  14 #include <list>
  15 #include <vector>
  16
  17 namespace ob {
  18
  19 class Client;
  20
  21 struct MouseCallbackData {
  22   MouseCallback callback;
  23   void         *data;
  24   MouseCallbackData(MouseCallback c, void *d) : callback(c), data(d) {}
  25   void fire(MouseData *d) { callback(d, data); }
  26   bool operator==(const MouseCallbackData &other) { return (callback ==
  27                                                             other.callback &&
  28                                                             data ==
  29                                                             other.data); }
  30 };
  31
  32 struct KeyCallbackData {
  33   KeyCallback callback;
  34   void       *data;
  35   KeyCallbackData(KeyCallback c, void *d) : callback(c), data(d) {}
  36   void fire(KeyData *d) { callback(d, data); }
  37   bool operator==(const KeyCallbackData &other) { return (callback ==
  38                                                           other.callback &&
  39                                                           data ==
  40                                                           other.data); }
  41 };
  42
  43 struct EventCallbackData {
  44   EventCallback callback;
  45   void         *data;
  46   EventCallbackData(EventCallback c, void *d) : callback(c), data(d) {}
  47   void fire(EventData *d) { callback(d, data); }
  48   bool operator==(const EventCallbackData &other) { return (callback ==
  49                                                             other.callback &&
  50                                                             data ==
  51                                                             other.data); }
  52 };
  53
  54 typedef std::list<MouseCallbackData> MouseCallbackList;
  55 typedef std::list<KeyCallbackData> KeyCallbackList;
  56 typedef std::list<EventCallbackData> EventCallbackList;
  57
  58 typedef struct Binding {
  59   unsigned int modifiers;
  60   unsigned int key;
  61
  62   bool operator==(struct Binding &b2) { return key == b2.key &&
  63                                           modifiers == b2.modifiers; }
  64   bool operator!=(struct Binding &b2) { return key != b2.key ||
  65                                           modifiers != b2.modifiers; }
  66   Binding(unsigned int mod, unsigned int k) { modifiers = mod; key = k; }
  67 } Binding;
  68
  69 typedef struct KeyBindingTree {
  70   Binding binding;
  71   KeyCallbackList callbacks; // the callbacks given for the binding in add()
  72   bool chain;     // true if this is a chain to another key (not an action)
  73
  74   struct KeyBindingTree *next_sibling; // the next binding in the tree at the same
  75                                     // level
  76   struct KeyBindingTree *first_child;  // the first child of this binding (next
  77                                     // binding in a chained sequence).
  78   KeyBindingTree() : binding(0, 0) {
  79     chain = true; next_sibling = first_child = 0;
  80   }
  81 } KeyBindingTree;
  82
  83 typedef struct ButtonBinding {
  84   Binding binding;
  85   MouseCallbackList callbacks[MouseAction::NUM_MOUSE_ACTION];
  86   ButtonBinding() : binding(0, 0) {}
  87 };
  88
  89 class Bindings {
  90 public:
  91   //! A list of strings
  92   typedef std::vector<std::string> StringVect;
  93
  94 private:
  95   // root node of the tree (this doesn't have siblings!)
  96   KeyBindingTree _keytree;
  97   KeyBindingTree *_curpos; // position in the keytree
  98
  99   Binding _resetkey; // the key which resets the key chain status
 100
 101   otk::Timer *_timer;
 102
 103   KeyBindingTree *find(KeyBindingTree *search, bool *conflict) const;
 104   KeyBindingTree *buildtree(const StringVect &keylist,
 105                             KeyCallback callback, void *data) const;
 106   void assimilate(KeyBindingTree *node);
 107
 108   static void resetChains(Bindings *self); // the timer's timeout function
 109
 110   typedef std::list <ButtonBinding*> ButtonBindingList;
 111   ButtonBindingList _buttons[MouseContext::NUM_MOUSE_CONTEXT];
 112
 113   void grabButton(bool grab, const Binding &b, MouseContext::MC context,
 114                   Client *client);
 115
 116   EventCallbackList _eventlist[EventAction::NUM_EVENT_ACTION];
 117
 118   KeyCallbackData _keybgrab_callback;
 119
 120   bool _grabbed;
 121
 122 public:
 123   //! Initializes an Bindings object
 124   Bindings();
 125   //! Destroys the Bindings object
 126   virtual ~Bindings();
 127
 128   //! Translates a binding string into the actual Binding
 129   bool translate(const std::string &str, Binding &b, bool askey = true) const;
 130
 131   //! Adds a new key binding
 132   /*!
 133     A binding will fail to be added if the binding already exists (as part of
 134     a chain or not), or if any of the strings in the keylist are invalid.
 135     @return true if the binding could be added; false if it could not.
 136   */
 137   bool addKey(const StringVect &keylist, KeyCallback callback, void *data);
 138
 139   ////! Removes a key binding
 140   ///*!
 141   //  @return The callbackid of the binding, or '< 0' if there was no binding to
 142   //          be removed.
 143   //*/
 144   //bool removeKey(const StringVect &keylist, KeyCallback callback, void *data);
 145
 146   //! Removes all key bindings
 147   void removeAllKeys();
 148
 149   void fireKey(int screen, unsigned int modifiers,unsigned int key, Time time,
 150                KeyAction::KA action);
 151
 152   void setResetKey(const std::string &key);
 153
 154   void grabKeys(bool grab);
 155
 156   bool grabKeyboard(int screen, KeyCallback callback, void *data);
 157   void ungrabKeyboard();
 158
 159   bool grabPointer(int screen);
 160   void ungrabPointer();
 161
 162   bool addButton(const std::string &but, MouseContext::MC context,
 163                  MouseAction::MA action, MouseCallback callback, void *data);
 164
 165   void grabButtons(bool grab, Client *client);
 166
 167   //! Removes all button bindings
 168   void removeAllButtons();
 169
 170   void fireButton(MouseData *data);
 171
 172   //! Bind a callback for an event
 173   bool addEvent(EventAction::EA action, EventCallback callback, void *data);
 174
 175   //! Unbind the callback function from an event
 176   bool removeEvent(EventAction::EA action, EventCallback callback, void *data);
 177
 178   //! Remove all callback functions
 179   void removeAllEvents();
 180
 181   void fireEvent(EventData *data);
 182 };
 183
 184 }
 185
 186 #endif // __binding_hh