Dogcows Code - chaz/openbox/blob - src/python.cc

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2
   3 #include "python.hh"
   4 #include "openbox.hh"
   5 #include "actions.hh"
   6 #include "python.hh"
   7 #include "bindings.hh"
   8 #include "otk/display.hh"
   9 #include "otk/util.hh"
  10
  11 extern "C" {
  12 // The initializer in openbox_wrap.cc / otk_wrap.cc
  13 extern void init_ob(void);
  14 extern void init_otk(void);
  15 }
  16
  17 namespace ob {
  18
  19 static PyObject *obdict = NULL;
  20
  21 void python_init(char *argv0)
  22 {
  23   // start the python engine
  24   Py_SetProgramName(argv0);
  25   Py_Initialize();
  26   // initialize the C python module
  27   init_otk();
  28   init_ob();
  29   // prepend the openbox directories for python scripts to the sys path
  30   PyRun_SimpleString("import sys");
  31   PyRun_SimpleString("sys.path.insert(0, '" SCRIPTDIR "')");
  32   PyRun_SimpleString(const_cast<char*>(("sys.path.insert(0, '" +
  33                                         otk::expandTilde("~/.openbox/python") +
  34                                         "')").c_str()));
  35   PyRun_SimpleString("import ob; import otk; import config;");
  36   // set up convenience global variables
  37   PyRun_SimpleString("ob.openbox = ob.Openbox_instance()");
  38   PyRun_SimpleString("otk.display = otk.Display_instance()");
  39
  40   // set up access to the python global variables
  41   PyObject *obmodule = PyImport_AddModule("config");
  42   obdict = PyModule_GetDict(obmodule);
  43 }
  44
  45 void python_destroy()
  46 {
  47   Py_DECREF(obdict);
  48 }
  49
  50 bool python_exec(const std::string &path)
  51 {
  52   FILE *rcpyfd = fopen(path.c_str(), "r");
  53   if (!rcpyfd) {
  54     printf("failed to load python file %s\n", path.c_str());
  55     return false;
  56   }
  57   PyRun_SimpleFile(rcpyfd, const_cast<char*>(path.c_str()));
  58   fclose(rcpyfd);
  59   return true;
  60 }
  61
  62 bool python_get_long(const char *name, long *value)
  63 {
  64   PyObject *val = PyDict_GetItemString(obdict, const_cast<char*>(name));
  65   if (!(val && PyInt_Check(val))) return false;
  66
  67   *value = PyInt_AsLong(val);
  68   return true;
  69 }
  70
  71 bool python_get_string(const char *name, otk::ustring *value)
  72 {
  73   PyObject *val = PyDict_GetItemString(obdict, const_cast<char*>(name));
  74   if (!(val && PyString_Check(val))) return false;
  75
  76   *value = PyString_AsString(val);
  77   return true;
  78 }
  79
  80 bool python_get_stringlist(const char *name, std::vector<otk::ustring> *value)
  81 {
  82   PyObject *val = PyDict_GetItemString(obdict, const_cast<char*>(name));
  83   if (!(val && PyList_Check(val))) return false;
  84
  85   for (int i = 0, end = PyList_Size(val); i < end; ++i) {
  86     PyObject *str = PyList_GetItem(val, i);
  87     if (PyString_Check(str))
  88       value->push_back(PyString_AsString(str));
  89   }
  90   return true;
  91 }
  92
  93 // ************************************* //
  94 // Stuff for calling from Python scripts //
  95 // ************************************* //
  96
  97 PyObject *mbind(const std::string &button, ob::MouseContext::MC context,
  98                 ob::MouseAction::MA action, PyObject *func)
  99 {
 100   if (!PyCallable_Check(func)) {
 101     PyErr_SetString(PyExc_TypeError, "Invalid callback function.");
 102     return NULL;
 103   }
 104
 105   if (!ob::openbox->bindings()->addButton(button, context,
 106                                           action, func)) {
 107     PyErr_SetString(PyExc_RuntimeError,"Unable to add binding.");
 108     return NULL;
 109   }
 110   Py_INCREF(Py_None); return Py_None;
 111 }
 112
 113 PyObject *ebind(ob::EventAction::EA action, PyObject *func)
 114 {
 115   if (!PyCallable_Check(func)) {
 116     PyErr_SetString(PyExc_TypeError, "Invalid callback function.");
 117     return NULL;
 118   }
 119
 120   if (!ob::openbox->bindings()->addEvent(action, func)) {
 121     PyErr_SetString(PyExc_RuntimeError,"Unable to add binding.");
 122     return NULL;
 123   }
 124   Py_INCREF(Py_None); return Py_None;
 125 }
 126
 127 PyObject *kgrab(int screen, PyObject *func)
 128 {
 129   if (!PyCallable_Check(func)) {
 130     PyErr_SetString(PyExc_TypeError, "Invalid callback function.");
 131     return NULL;
 132   }
 133
 134   if (!ob::openbox->bindings()->grabKeyboard(screen, func)) {
 135     PyErr_SetString(PyExc_RuntimeError,"Unable to grab keybaord.");
 136     return NULL;
 137   }
 138   Py_INCREF(Py_None); return Py_None;
 139 }
 140
 141 PyObject *kungrab()
 142 {
 143   ob::openbox->bindings()->ungrabKeyboard();
 144   Py_INCREF(Py_None); return Py_None;
 145 }
 146
 147 PyObject *mgrab(int screen)
 148 {
 149   if (!ob::openbox->bindings()->grabPointer(screen)) {
 150     PyErr_SetString(PyExc_RuntimeError,"Unable to grab pointer.");
 151     return NULL;
 152   }
 153   Py_INCREF(Py_None); return Py_None;
 154 }
 155
 156 PyObject *mungrab()
 157 {
 158   ob::openbox->bindings()->ungrabPointer();
 159   Py_INCREF(Py_None); return Py_None;
 160 }
 161
 162 PyObject *kbind(PyObject *keylist, ob::KeyContext::KC context, PyObject *func)
 163 {
 164   if (!PyCallable_Check(func)) {
 165     PyErr_SetString(PyExc_TypeError, "Invalid callback function.");
 166     return NULL;
 167   }
 168   if (!PyList_Check(keylist)) {
 169     PyErr_SetString(PyExc_TypeError, "Invalid keylist. Not a list.");
 170     return NULL;
 171   }
 172
 173   ob::Bindings::StringVect vectkeylist;
 174   for (int i = 0, end = PyList_Size(keylist); i < end; ++i) {
 175     PyObject *str = PyList_GetItem(keylist, i);
 176     if (!PyString_Check(str)) {
 177       PyErr_SetString(PyExc_TypeError,
 178                      "Invalid keylist. It must contain only strings.");
 179       return NULL;
 180     }
 181     vectkeylist.push_back(PyString_AsString(str));
 182   }
 183
 184   (void)context; // XXX use this sometime!
 185   if (!ob::openbox->bindings()->addKey(vectkeylist, func)) {
 186     PyErr_SetString(PyExc_RuntimeError,"Unable to add binding.");
 187     return NULL;
 188   }
 189   Py_INCREF(Py_None); return Py_None;
 190 }
 191
 192 PyObject *kunbind(PyObject *keylist, PyObject *func)
 193 {
 194   if (!PyList_Check(keylist)) {
 195     PyErr_SetString(PyExc_TypeError, "Invalid keylist. Not a list.");
 196     return NULL;
 197   }
 198   if (!PyCallable_Check(func)) {
 199     PyErr_SetString(PyExc_TypeError, "Invalid callback function.");
 200     return NULL;
 201   }
 202
 203   ob::Bindings::StringVect vectkeylist;
 204   for (int i = 0, end = PyList_Size(keylist); i < end; ++i) {
 205     PyObject *str = PyList_GetItem(keylist, i);
 206     if (!PyString_Check(str)) {
 207       PyErr_SetString(PyExc_TypeError,
 208                      "Invalid keylist. It must contain only strings.");
 209       return NULL;
 210     }
 211     vectkeylist.push_back(PyString_AsString(str));
 212   }
 213
 214   if (!ob::openbox->bindings()->removeKey(vectkeylist, func)) {
 215       PyErr_SetString(PyExc_RuntimeError, "Could not remove callback.");
 216       return NULL;
 217   }
 218   Py_INCREF(Py_None); return Py_None;
 219 }
 220
 221 void kunbind_all()
 222 {
 223   ob::openbox->bindings()->removeAllKeys();
 224 }
 225
 226 void set_reset_key(const std::string &key)
 227 {
 228   ob::openbox->bindings()->setResetKey(key);
 229 }
 230
 231 PyObject *send_client_msg(Window target, Atom type, Window about,
 232                           long data, long data1, long data2,
 233                           long data3, long data4)
 234 {
 235   XEvent e;
 236   e.xclient.type = ClientMessage;
 237   e.xclient.format = 32;
 238   e.xclient.message_type = type;
 239   e.xclient.window = about;
 240   e.xclient.data.l[0] = data;
 241   e.xclient.data.l[1] = data1;
 242   e.xclient.data.l[2] = data2;
 243   e.xclient.data.l[3] = data3;
 244   e.xclient.data.l[4] = data4;
 245
 246   XSendEvent(**otk::display, target, false,
 247              SubstructureRedirectMask | SubstructureNotifyMask,
 248              &e);
 249   Py_INCREF(Py_None); return Py_None;
 250 }
 251
 252 void execute(const std::string &bin, int screen)
 253 {
 254   if (screen >= ScreenCount(**otk::display))
 255     screen = 0;
 256   otk::bexec(bin, otk::display->screenInfo(screen)->displayString());
 257 }
 258
 259 }