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

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2
   3 %module ob_callback
   4
   5 %include "std_string.i"
   6
   7 %{
   8 /*
   9   Calls a python callback for the MouseCallback function type
  10  */
  11 static void PythonMouseCallback(ob::MouseData *data, void *pyfunc)
  12 {
  13   PyObject *arglist, *pdata, *result;
  14
  15   pdata = SWIG_NewPointerObj((void *) data, SWIGTYPE_p_ob__MouseData, 0);
  16   arglist = Py_BuildValue("(O)", pdata);
  17   Py_DECREF(pdata);
  18
  19   // call the callback
  20   result = PyEval_CallObject((PyObject*)pyfunc, arglist);
  21   if (!result || PyErr_Occurred()) {
  22     // an exception occured in the script, display it
  23     PyErr_Print();
  24   }
  25
  26   Py_XDECREF(result);
  27   Py_DECREF(arglist);
  28 }
  29
  30 /*
  31   Calls a python callback for the KeyCallback function type
  32  */
  33 static void PythonKeyCallback(ob::KeyData *data, void *pyfunc)
  34 {
  35   PyObject *arglist, *pdata, *result;
  36
  37   pdata = SWIG_NewPointerObj((void *) data, SWIGTYPE_p_ob__KeyData, 0);
  38   arglist = Py_BuildValue("(O)", pdata);
  39   Py_DECREF(pdata);
  40
  41   // call the callback
  42   result = PyEval_CallObject((PyObject*)pyfunc, arglist);
  43   if (!result || PyErr_Occurred()) {
  44     // an exception occured in the script, display it
  45     PyErr_Print();
  46   }
  47
  48   Py_XDECREF(result);
  49   Py_DECREF(arglist);
  50 }
  51
  52 /*
  53   Calls a python callback for the EventCallback function type
  54  */
  55 static void PythonEventCallback(ob::EventData *data, void *pyfunc)
  56 {
  57   PyObject *arglist, *pdata, *result;
  58
  59   pdata = SWIG_NewPointerObj((void *) data, SWIGTYPE_p_ob__EventData, 0);
  60   arglist = Py_BuildValue("(O)", pdata);
  61   Py_DECREF(pdata);
  62
  63   // call the callback
  64   result = PyEval_CallObject((PyObject*)pyfunc, arglist);
  65   if (!result || PyErr_Occurred()) {
  66     // an exception occured in the script, display it
  67     PyErr_Print();
  68   }
  69
  70   Py_XDECREF(result);
  71   Py_DECREF(arglist);
  72 }
  73 %}
  74
  75 // for all of these, PyErr_SetString is called before they return a false!
  76 %exception mbind {
  77   $action
  78   if (!result) return NULL;
  79 }
  80 %exception kbind {
  81   $action
  82   if (!result) return NULL;
  83 }
  84 %exception ebind {
  85   $action
  86   if (!result) return NULL;
  87 }
  88 %exception kgrab {
  89   $action
  90   if (!result) return NULL;
  91 }
  92 %exception mgrab {
  93   $action
  94   if (!result) return NULL;
  95 }
  96
  97 // Grab a Python function object as a Python object.
  98 %typemap(python,in) PyObject *func {
  99   if (!PyCallable_Check($input)) {
 100     PyErr_SetString(PyExc_TypeError, "Excepting a callable object.");
 101     return NULL;
 102   }
 103   $1 = $input;
 104 }
 105
 106 %inline %{
 107 #include "bindings.hh"
 108
 109 bool mbind(const std::string &button, ob::MouseContext::MC context,
 110            ob::MouseAction::MA action, PyObject *func)
 111 {
 112   if(context < 0 || context >= ob::MouseContext::NUM_MOUSE_CONTEXT) {
 113     PyErr_SetString(PyExc_ValueError, "Invalid MouseContext");
 114     return false;
 115   }
 116   if(action < 0 || action >= ob::MouseAction::NUM_MOUSE_ACTION) {
 117     PyErr_SetString(PyExc_ValueError, "Invalid MouseAction");
 118     return false;
 119   }
 120
 121   if (!ob::openbox->bindings()->addButton(button, context,
 122                                           action, PythonMouseCallback, func)) {
 123     PyErr_SetString(PyExc_RuntimeError,"Unable to add binding.");
 124     return false;
 125   }
 126   Py_INCREF(func); // the func is never decreffed... XXX
 127   return true;
 128 }
 129
 130 bool ebind(ob::EventAction::EA action, PyObject *func)
 131 {
 132   if(action < 0 || action >= ob::EventAction::NUM_EVENT_ACTION) {
 133     PyErr_SetString(PyExc_ValueError, "Invalid EventAction");
 134     return false;
 135   }
 136
 137   if (!ob::openbox->bindings()->addEvent(action, PythonEventCallback, func)) {
 138     PyErr_SetString(PyExc_RuntimeError,"Unable to add binding.");
 139     return false;
 140   }
 141   Py_INCREF(func); // the func is never decreffed... XXX
 142   return true;
 143 }
 144
 145 bool kgrab(int screen, PyObject *func)
 146 {
 147   if (!ob::openbox->bindings()->grabKeyboard(screen,
 148                                              PythonKeyCallback, func)) {
 149     PyErr_SetString(PyExc_RuntimeError,"Unable to grab keybaord.");
 150     return false;
 151   }
 152   Py_INCREF(func); // the func is never decreffed... XXX
 153   return true;
 154 }
 155
 156 void kungrab()
 157 {
 158   ob::openbox->bindings()->ungrabKeyboard();
 159 }
 160
 161 bool mgrab(int screen)
 162 {
 163   if (!ob::openbox->bindings()->grabPointer(screen)) {
 164     PyErr_SetString(PyExc_RuntimeError,"Unable to grab pointer.");
 165     return false;
 166   }
 167   return true;
 168 }
 169
 170 void mungrab()
 171 {
 172   ob::openbox->bindings()->ungrabPointer();
 173 }
 174
 175 bool kbind(PyObject *keylist, ob::KeyContext::KC context, PyObject *func)
 176 {
 177   if (!PyList_Check(keylist)) {
 178     PyErr_SetString(PyExc_TypeError, "Invalid keylist. Not a list.");
 179     return false;
 180   }
 181   if(context < 0 || context >= ob::KeyContext::NUM_KEY_CONTEXT) {
 182     PyErr_SetString(PyExc_ValueError, "Invalid KeyContext");
 183     return false;
 184   }
 185
 186   ob::Bindings::StringVect vectkeylist;
 187   for (int i = 0, end = PyList_Size(keylist); i < end; ++i) {
 188     PyObject *str = PyList_GetItem(keylist, i);
 189     if (!PyString_Check(str)) {
 190       PyErr_SetString(PyExc_TypeError,
 191                      "Invalid keylist. It must contain only strings.");
 192       return false;
 193     }
 194     vectkeylist.push_back(PyString_AsString(str));
 195   }
 196
 197   (void)context; // XXX use this sometime!
 198   if (!ob::openbox->bindings()->addKey(vectkeylist, PythonKeyCallback, func)) {
 199     PyErr_SetString(PyExc_RuntimeError,"Unable to add binding.");
 200     return false;
 201   }
 202   Py_INCREF(func); // the func is never decreffed... XXX
 203   return true;
 204 }
 205
 206 %};