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 binding.hh
   6   @brief I dunno.. some binding stuff?
   7 */
   8
   9 #include "actions.hh"
  10 #include "otk/timer.hh"
  11
  12 extern "C" {
  13 #include <Python.h>
  14 }
  15
  16 #include <string>
  17 #include <list>
  18 #include <vector>
  19
  20 namespace ob {
  21
  22 class OBClient;
  23
  24 typedef struct Binding {
  25   unsigned int modifiers;
  26   unsigned int key;
  27
  28   bool operator==(struct Binding &b2) { return key == b2.key &&
  29                                           modifiers == b2.modifiers; }
  30   bool operator!=(struct Binding &b2) { return key != b2.key ||
  31                                           modifiers != b2.modifiers; }
  32   Binding(unsigned int mod, unsigned int k) { modifiers = mod; key = k; }
  33 } Binding;
  34
  35 typedef struct BindingTree {
  36   Binding binding;
  37   PyObject *callback; // the callback given for the binding in add()
  38   bool chain;     // true if this is a chain to another key (not an action)
  39
  40   struct BindingTree *next_sibling; // the next binding in the tree at the same
  41                                     // level
  42   struct BindingTree *first_child;  // the first child of this binding (next
  43                                     // binding in a chained sequence).
  44   BindingTree(PyObject *callback) : binding(0, 0) {
  45     this->callback = callback; chain = true; next_sibling = first_child = 0;
  46   }
  47   BindingTree() : binding(0, 0) {
  48     this->callback = 0; chain = true; next_sibling = first_child = 0;
  49   }
  50 } BindingTree;
  51
  52 class OBBindings {
  53 public:
  54   //! A list of strings
  55   typedef std::vector<std::string> StringVect;
  56
  57 private:
  58   BindingTree _tree; // root node of the tree (this doesn't have siblings!)
  59   BindingTree *_curpos; // position in the keytree
  60
  61   Binding _resetkey; // the key which resets the key chain status
  62
  63   otk::OBTimer _timer;
  64
  65   PyObject *find(BindingTree *search, bool *conflict) const;
  66   bool translate(const std::string &str, Binding &b) const;
  67   BindingTree *buildtree(const StringVect &keylist, PyObject *callback) const;
  68   void assimilate(BindingTree *node);
  69
  70   static void reset(OBBindings *self); // the timer's timeout function
  71
  72 public:
  73   //! Initializes an OBBinding object
  74   OBBindings();
  75   //! Destroys the OBBinding object
  76   virtual ~OBBindings();
  77
  78   //! Adds a new key binding
  79   /*!
  80     A binding will fail to be added if the binding already exists (as part of
  81     a chain or not), or if any of the strings in the keylist are invalid.
  82     @return true if the binding could be added; false if it could not.
  83   */
  84   bool add(const StringVect &keylist, PyObject *callback);
  85
  86   //! Removes a key binding
  87   /*!
  88     @return The callbackid of the binding, or '< 0' if there was no binding to
  89             be removed.
  90   */
  91   bool remove(const StringVect &keylist);
  92
  93   //! Removes all key bindings
  94   void removeAll();
  95
  96   void fire(unsigned int modifiers,unsigned int key, Time time);
  97
  98   void setResetKey(const std::string &key);
  99
 100   void grabKeys(bool grab);
 101 };
 102
 103 }
 104
 105 #endif // __binding_hh