lib/actions/action.cpp

   1 #include <lib/actions/action.h>
   2 #include <lib/base/init.h>
   3 #include <lib/base/init_num.h>
   4 #include <lib/actions/actionids.h>
   5 #include <lib/driver/rc.h>
   6
   7 /*
   8
   9   THIS CODE SUCKS.
  10
  11 we need:
  12  - contexts that aren't compared as strings,
  13  - maybe a lookup "device,key,flags" -> actions? (lazy validation, on bindAction)
  14  - devices as ids
  15  - seperate native from python keys? (currently, if an action wasn't found, it's ignored.)
  16
  17 Sorry. I spent 3 days on thinking how this could be made better, and it just DID NOT WORKED OUT.
  18
  19 If you have a better idea, please tell me.
  20
  21  */
  22
  23 DEFINE_REF(eActionMap);
  24
  25 eActionMap *eActionMap::instance;
  26
  27 eActionMap::eActionMap()
  28 {
  29         instance = this;
  30 }
  31
  32 eActionMap::~eActionMap()
  33 {
  34         instance = 0;
  35 }
  36
  37 RESULT eActionMap::getInstance(ePtr<eActionMap> &ptr)
  38 {
  39         ptr = instance;
  40         if (!ptr)
  41                 return -1;
  42         return 0;
  43 }
  44
  45 void eActionMap::bindAction(const std::string &context, int priority, int id, eWidget *widget)
  46 {
  47         eActionBinding bnd;
  48
  49         bnd.m_context = context;
  50         bnd.m_widget = widget;
  51         bnd.m_id = id;
  52         m_bindings.insert(std::pair<int,eActionBinding>(priority, bnd));
  53 }
  54
  55 void eActionMap::bindAction(const std::string &context, int priority, ePyObject function)
  56 {
  57         eActionBinding bnd;
  58
  59         bnd.m_context = context;
  60         bnd.m_widget = 0;
  61         Py_INCREF(function);
  62         bnd.m_fnc = function;
  63         m_bindings.insert(std::pair<int,eActionBinding>(priority, bnd));
  64 }
  65
  66 void eActionMap::unbindAction(eWidget *widget, int id)
  67 {
  68         for (std::multimap<int, eActionBinding>::iterator i(m_bindings.begin()); i != m_bindings.end(); ++i)
  69                 if ((i->second.m_widget == widget) && (i->second.m_id == id))
  70                 {
  71                         m_bindings.erase(i);
  72                         return;
  73                 }
  74 }
  75
  76 void eActionMap::unbindAction(const std::string &context, ePyObject function)
  77 {
  78         for (std::multimap<int, eActionBinding>::iterator i(m_bindings.begin()); i != m_bindings.end(); ++i)
  79         {
  80                 if (i->second.m_fnc && (PyObject_Compare(i->second.m_fnc, function) == 0))
  81                 {
  82                         Py_DECREF(i->second.m_fnc);
  83                         m_bindings.erase(i);
  84                         return;
  85                 }
  86         }
  87         eFatal("unbindAction with illegal python reference");
  88 }
  89
  90
  91 void eActionMap::bindKey(const std::string &domain, const std::string &device, int key, int flags, const std::string &context, const std::string &action)
  92 {
  93                 // first, search the actionlist table
  94         unsigned int i;
  95         for (i=0; i<sizeof(actions)/sizeof(*actions); ++i)
  96         {
  97                 if ((actions[i].m_context == context) && (actions[i].m_action == action))
  98                 {
  99                                 // we found a native action.
 100                         eNativeKeyBinding bind;
 101                         bind.m_device = device;
 102                         bind.m_key = key;
 103                         bind.m_flags = flags;
 104                         bind.m_action = actions[i].m_id;
 105                         bind.m_domain = domain;
 106                         m_native_keys.insert(std::pair<std::string,eNativeKeyBinding>(context, bind));
 107                         return;
 108                 }
 109         }
 110
 111                 // we didn't find the action, so it must be a pythonAction
 112         ePythonKeyBinding bind;
 113
 114         bind.m_device = device;
 115         bind.m_key = key;
 116         bind.m_flags = flags;
 117         bind.m_action = action;
 118         bind.m_domain = domain;
 119         m_python_keys.insert(std::pair<std::string,ePythonKeyBinding>(context, bind));
 120 }
 121
 122 void eActionMap::unbindKeyDomain(const std::string &domain)
 123 {
 124         for (std::multimap<std::string, eNativeKeyBinding>::iterator i(m_native_keys.begin()); i != m_native_keys.end(); ++i)
 125                 if (i->second.m_domain == domain)
 126                 {
 127                         m_native_keys.erase(i);
 128                         i = m_native_keys.begin();
 129                 }
 130
 131         for (std::multimap<std::string, ePythonKeyBinding>::iterator i(m_python_keys.begin()); i != m_python_keys.end(); ++i)
 132                 if (i->second.m_domain == domain)
 133                 {
 134                         m_python_keys.erase(i);
 135                         i = m_python_keys.begin();
 136                 }
 137 }
 138
 139 struct call_entry
 140 {
 141         ePyObject m_fnc, m_arg;
 142         eWidget *m_widget;
 143         void *m_widget_arg, *m_widget_arg2;
 144         call_entry(ePyObject fnc, ePyObject arg): m_fnc(fnc), m_arg(arg), m_widget(0), m_widget_arg(0) { }
 145         call_entry(eWidget *widget, void *arg, void *arg2): m_widget(widget), m_widget_arg(arg), m_widget_arg2(arg2) { }
 146 };
 147
 148 void eActionMap::keyPressed(const std::string &device, int key, int flags)
 149 {
 150         std::list<call_entry> call_list;
 151
 152                 /* iterate active contexts. */
 153         for (std::multimap<int,eActionBinding>::iterator c(m_bindings.begin());
 154                 c != m_bindings.end(); ++c)
 155         {
 156                 if (flags == eRCKey::flagMake)
 157                         c->second.m_prev_seen_make_key = key;
 158                 else if (c->second.m_prev_seen_make_key != key)  // ignore repeat or break when the make code for this key was not visible
 159                         continue;
 160
 161                         /* is this a native context? */
 162                 if (c->second.m_widget)
 163                 {
 164                                 /* is this a named context, i.e. not the wildcard? */
 165                         if (c->second.m_context.size())
 166                         {
 167                                 std::multimap<std::string,eNativeKeyBinding>::const_iterator
 168                                         k = m_native_keys.lower_bound(c->second.m_context),
 169                                         e = m_native_keys.upper_bound(c->second.m_context);
 170
 171                                 for (; k != e; ++k)
 172                                 {
 173                                         if (
 174                                                         (k->second.m_key == key) &&
 175                                                         (k->second.m_flags & (1<<flags)) &&
 176                                                   ((k->second.m_device == device) || (k->second.m_device == "generic"))
 177                                                   )
 178                                                 call_list.push_back(call_entry(c->second.m_widget, (void*)c->second.m_id, (void*)k->second.m_action));
 179                                 }
 180                         } else
 181                         {
 182                                         /* wildcard - get any keys. */
 183                                 if (c->second.m_widget->event(eWidget::evtKey, (void*)key, (void*)flags))
 184                                         return;
 185                         }
 186                 } else if (c->second.m_fnc)
 187                 {
 188                         if (c->second.m_context.size())
 189                         {
 190                                 std::multimap<std::string,ePythonKeyBinding>::const_iterator
 191                                         k = m_python_keys.lower_bound(c->second.m_context),
 192                                         e = m_python_keys.upper_bound(c->second.m_context);
 193
 194                                 for (; k != e; ++k)
 195                                 {
 196                                         if (
 197                                                 (k->second.m_key == key) &&
 198                                                 (k->second.m_flags & (1<<flags)) &&
 199                                                 ((k->second.m_device == device) || (k->second.m_device == "generic"))
 200                                                 )
 201                                         {
 202                                                 ePyObject pArgs = PyTuple_New(2);
 203                                                 PyTuple_SET_ITEM(pArgs, 0, PyString_FromString(k->first.c_str()));
 204                                                 PyTuple_SET_ITEM(pArgs, 1, PyString_FromString(k->second.m_action.c_str()));
 205                                                 Py_INCREF(c->second.m_fnc);
 206                                                 call_list.push_back(call_entry(c->second.m_fnc, pArgs));
 207                                         }
 208                                 }
 209                         } else
 210                         {
 211 //                              eDebug("wildcard.");
 212                                 ePyObject pArgs = PyTuple_New(2);
 213                                 PyTuple_SET_ITEM(pArgs, 0, PyInt_FromLong(key));
 214                                 PyTuple_SET_ITEM(pArgs, 1, PyInt_FromLong(flags));
 215                                 Py_INCREF(c->second.m_fnc);
 216                                 call_list.push_back(call_entry(c->second.m_fnc, pArgs));
 217                         }
 218                 }
 219         }
 220
 221         int res = 0;
 222                         /* we need to iterate over all to not loose a reference */
 223         for (std::list<call_entry>::iterator i(call_list.begin()); i != call_list.end(); ++i)
 224         {
 225                 if (i->m_fnc)
 226                 {
 227                         if (!res)
 228                                 res = ePython::call(i->m_fnc, i->m_arg);
 229                         Py_DECREF(i->m_fnc);
 230                         Py_DECREF(i->m_arg);
 231                 } else if (i->m_widget && !res)
 232                         res = i->m_widget->event(eWidget::evtAction, (void*)i->m_widget_arg, (void*)i->m_widget_arg2 );
 233         }
 234 }
 235
 236 ePtr<eActionMap> NewActionMapPtr(void)
 237 {
 238         ePtr<eActionMap> ptr;
 239         eActionMap::getInstance(ptr);
 240         return ptr;
 241 }
 242
 243 eAutoInitPtr<eActionMap> init_eActionMap(eAutoInitNumbers::actions, "eActionMap");