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
  11 #include <string>
  12 #include <vector>
  13
  14 namespace ob {
  15
  16 class OBClient;
  17
  18 typedef struct Binding {
  19   unsigned int modifiers;
  20   unsigned int key;
  21
  22   bool operator==(struct Binding &b2) { return key == b2.key &&
  23                                           modifiers == b2.modifiers; }
  24   bool operator!=(struct Binding &b2) { return key != b2.key ||
  25                                           modifiers != b2.modifiers; }
  26   Binding(unsigned int mod, unsigned int k) { modifiers = mod; key = k; }
  27 } Binding;
  28
  29 typedef struct BindingTree {
  30   Binding binding;
  31   int id;     // the id given for the binding in add()
  32   bool chain; // true if this is a chain to another key (not an action)
  33
  34   struct BindingTree *next_sibling; // the next binding in the tree at the same
  35                                     // level
  36   struct BindingTree *first_child;  // the first child of this binding (next
  37                                     // binding in a chained sequence).
  38   BindingTree(int id) : binding(0, 0) {
  39     this->id = id; chain = true; next_sibling = first_child = 0;
  40   }
  41   BindingTree() : binding(0, 0) {
  42     this->id = -1; chain = true; next_sibling = first_child = 0;
  43   }
  44 } BindingTree;
  45
  46 class OBBindings {
  47 public:
  48   //! A list of strings
  49   typedef std::vector<std::string> StringVect;
  50
  51 private:
  52   BindingTree _tree; // root node of the tree (this doesn't have siblings!)
  53   BindingTree *_curpos; // position in the keytree
  54
  55   Binding _resetkey; // the key which resets the key chain status
  56
  57   int find(BindingTree *search) const;
  58   bool translate(const std::string &str, Binding &b) const;
  59   BindingTree *buildtree(const StringVect &keylist, int id) const;
  60   void assimilate(BindingTree *node);
  61
  62 public:
  63   //! Initializes an OBBinding object
  64   OBBindings();
  65   //! Destroys the OBBinding object
  66   virtual ~OBBindings();
  67
  68   //! Adds a new key binding
  69   /*!
  70     A binding will fail to be added if the binding already exists (as part of
  71     a chain or not), or if any of the strings in the keylist are invalid.
  72     @return true if the binding could be added; false if it could not.
  73   */
  74   bool add(const StringVect &keylist, int id);
  75
  76   //! Removes a key binding
  77   /*!
  78     @return The id of the binding that was removed, or '< 0' if none were
  79             removed.
  80   */
  81   int remove(const StringVect &keylist);
  82
  83   //! Removes all key bindings
  84   void remove_all();
  85
  86   //! Finds a keybinding and returns its id or '< 0' if it isn't found.
  87   /*!
  88     @return -1 if the keybinding was not found but does not conflict with
  89     any others; -2 if the keybinding conflicts with another.
  90   */
  91   int find(const StringVect &keylist);
  92
  93   void fire(Window window, unsigned int modifiers,unsigned int key, Time time);
  94
  95   void setResetKey(const std::string &key);
  96
  97   void grabKeys(bool grab);
  98 };
  99
 100 }
 101
 102 #endif // __binding_hh