Dogcows Code - chaz/openbox/blob - wrap/callback.i

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2
   3 %{
   4 /*
   5   Calls a python callback for the MouseCallback function type
   6  */
   7 static void PythonMouseCallback(ob::MouseData *data, void *pyfunc)
   8 {
   9   PyObject *arglist, *pdata, *result;
  10
  11   pdata = SWIG_NewPointerObj((void *) data, SWIGTYPE_p_ob__MouseData, 0);
  12   arglist = Py_BuildValue("(O)", pdata);
  13   Py_DECREF(pdata);
  14
  15   // call the callback
  16   result = PyEval_CallObject((PyObject*)pyfunc, arglist);
  17   if (!result || PyErr_Occurred()) {
  18     // an exception occured in the script, display it
  19     PyErr_Print();
  20   }
  21
  22   Py_XDECREF(result);
  23   Py_DECREF(arglist);
  24 }
  25
  26 /*
  27   Calls a python callback for the KeyCallback function type
  28  */
  29 static void PythonKeyCallback(ob::KeyData *data, void *pyfunc)
  30 {
  31   PyObject *arglist, *pdata, *result;
  32
  33   pdata = SWIG_NewPointerObj((void *) data, SWIGTYPE_p_ob__KeyData, 0);
  34   arglist = Py_BuildValue("(O)", pdata);
  35   Py_DECREF(pdata);
  36
  37   // call the callback
  38   result = PyEval_CallObject((PyObject*)pyfunc, arglist);
  39   if (!result || PyErr_Occurred()) {
  40     // an exception occured in the script, display it
  41     PyErr_Print();
  42   }
  43
  44   Py_XDECREF(result);
  45   Py_DECREF(arglist);
  46 }
  47
  48 /*
  49   Calls a python callback for the EventCallback function type
  50  */
  51 static void PythonEventCallback(ob::EventData *data, void *pyfunc)
  52 {
  53   PyObject *arglist, *pdata, *result;
  54
  55   pdata = SWIG_NewPointerObj((void *) data, SWIGTYPE_p_ob__EventData, 0);
  56   arglist = Py_BuildValue("(O)", pdata);
  57   Py_DECREF(pdata);
  58
  59   // call the callback
  60   result = PyEval_CallObject((PyObject*)pyfunc, arglist);
  61   if (!result || PyErr_Occurred()) {
  62     // an exception occured in the script, display it
  63     PyErr_Print();
  64   }
  65
  66   Py_XDECREF(result);
  67   Py_DECREF(arglist);
  68 }
  69 %}
  70
  71 // for all of these, PyErr_SetString is called before they return a false!
  72 %exception mbind {
  73   $action
  74   if (!result) return NULL;
  75 }
  76 %exception kbind {
  77   $action
  78   if (!result) return NULL;
  79 }
  80 %exception ebind {
  81   $action
  82   if (!result) return NULL;
  83 }
  84 %exception kgrab {
  85   $action
  86   if (!result) return NULL;
  87 }
  88 %exception mgrab {
  89   $action
  90   if (!result) return NULL;
  91 }
  92
  93 // Grab a Python function object as a Python object.
  94 %typemap(python,in) PyObject *func {
  95   if (!PyCallable_Check($input)) {
  96     PyErr_SetString(PyExc_TypeError, "Excepting a callable object.");
  97     return NULL;
  98   }
  99   $1 = $input;
 100 }
 101
 102 %inline %{
 103 bool mbind(const std::string &button, ob::MouseContext::MC context,
 104            ob::MouseAction::MA action, PyObject *func)
 105 {
 106   if(context < 0 || context >= ob::MouseContext::NUM_MOUSE_CONTEXT) {
 107     PyErr_SetString(PyExc_ValueError, "Invalid MouseContext");
 108     return false;
 109   }
 110   if(action < 0 || action >= ob::MouseAction::NUM_MOUSE_ACTION) {
 111     PyErr_SetString(PyExc_ValueError, "Invalid MouseAction");
 112     return false;
 113   }
 114
 115   if (!ob::openbox->bindings()->addButton(button, context,
 116                                           action, PythonMouseCallback, func)) {
 117     PyErr_SetString(PyExc_RuntimeError,"Unable to add binding.");
 118     return false;
 119   }
 120   Py_INCREF(func);
 121   return true;
 122 }
 123
 124 bool ebind(ob::EventAction::EA action, PyObject *func)
 125 {
 126   if(action < 0 || action >= ob::EventAction::NUM_EVENT_ACTION) {
 127     PyErr_SetString(PyExc_ValueError, "Invalid EventAction");
 128     return false;
 129   }
 130
 131   if (!ob::openbox->bindings()->addEvent(action, PythonEventCallback, func)) {
 132     PyErr_SetString(PyExc_RuntimeError,"Unable to add binding.");
 133     return false;
 134   }
 135   Py_INCREF(func);
 136   return true;
 137 }
 138
 139 bool kgrab(int screen, PyObject *func)
 140 {
 141   if (!ob::openbox->bindings()->grabKeyboard(screen,
 142                                              PythonKeyCallback, func)) {
 143     PyErr_SetString(PyExc_RuntimeError,"Unable to grab keybaord.");
 144     return false;
 145   }
 146   Py_INCREF(func);
 147   return true;
 148 }
 149
 150 void kungrab()
 151 {
 152   ob::openbox->bindings()->ungrabKeyboard();
 153 }
 154
 155 bool mgrab(int screen)
 156 {
 157   if (!ob::openbox->bindings()->grabPointer(screen)) {
 158     PyErr_SetString(PyExc_RuntimeError,"Unable to grab pointer.");
 159     return false;
 160   }
 161   return true;
 162 }
 163
 164 void mungrab()
 165 {
 166   ob::openbox->bindings()->ungrabPointer();
 167 }
 168
 169 bool kbind(PyObject *keylist, ob::KeyContext::KC context, PyObject *func)
 170 {
 171   if (!PyList_Check(keylist)) {
 172     PyErr_SetString(PyExc_TypeError, "Invalid keylist. Not a list.");
 173     return false;
 174   }
 175   if(context < 0 || context >= ob::KeyContext::NUM_KEY_CONTEXT) {
 176     PyErr_SetString(PyExc_ValueError, "Invalid KeyContext");
 177     return false;
 178   }
 179
 180   ob::Bindings::StringVect vectkeylist;
 181   for (int i = 0, end = PyList_Size(keylist); i < end; ++i) {
 182     PyObject *str = PyList_GetItem(keylist, i);
 183     if (!PyString_Check(str)) {
 184       PyErr_SetString(PyExc_TypeError,
 185                      "Invalid keylist. It must contain only strings.");
 186       return false;
 187     }
 188     vectkeylist.push_back(PyString_AsString(str));
 189   }
 190
 191   (void)context; // XXX use this sometime!
 192   if (!ob::openbox->bindings()->addKey(vectkeylist, PythonKeyCallback, func)) {
 193     PyErr_SetString(PyExc_RuntimeError,"Unable to add binding.");
 194     return false;
 195   }
 196   Py_INCREF(func);
 197   return true;
 198 }
 199
 200 %};