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