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   Py_Finalize();
  49 }
  50
  51 bool python_exec(const std::string &path)
  52 {
  53   FILE *rcpyfd = fopen(path.c_str(), "r");
  54   if (!rcpyfd) {
  55     printf("Failed to load python file %s\n", path.c_str());
  56     return false;
  57   }
  58   PyRun_SimpleFile(rcpyfd, const_cast<char*>(path.c_str()));
  59   fclose(rcpyfd);
  60   return true;
  61 }
  62
  63 bool python_get_long(const char *name, long *value)
  64 {
  65   PyObject *val = PyDict_GetItemString(obdict, const_cast<char*>(name));
  66   if (!(val && PyInt_Check(val))) return false;
  67
  68   *value = PyInt_AsLong(val);
  69   return true;
  70 }
  71
  72 bool python_get_string(const char *name, otk::ustring *value)
  73 {
  74   PyObject *val = PyDict_GetItemString(obdict, const_cast<char*>(name));
  75   if (!(val && PyString_Check(val))) return false;
  76
  77   *value = PyString_AsString(val);
  78   return true;
  79 }
  80
  81 bool python_get_stringlist(const char *name, std::vector<otk::ustring> *value)
  82 {
  83   PyObject *val = PyDict_GetItemString(obdict, const_cast<char*>(name));
  84   if (!(val && PyList_Check(val))) return false;
  85
  86   for (int i = 0, end = PyList_Size(val); i < end; ++i) {
  87     PyObject *str = PyList_GetItem(val, i);
  88     if (PyString_Check(str))
  89       value->push_back(PyString_AsString(str));
  90   }
  91   return true;
  92 }
  93
  94 // ************************************* //
  95 // Stuff for calling from Python scripts //
  96 // ************************************* //
  97
  98 PyObject *mbind(const std::string &button, ob::MouseContext::MC context,
  99                 ob::MouseAction::MA action, PyObject *func)
 100 {
 101   if (!PyCallable_Check(func)) {
 102     PyErr_SetString(PyExc_TypeError, "Invalid callback function.");
 103     return NULL;
 104   }
 105
 106   if (!ob::openbox->bindings()->addButton(button, context,
 107                                           action, func)) {
 108     PyErr_SetString(PyExc_RuntimeError,"Unable to add binding.");
 109     return NULL;
 110   }
 111   Py_INCREF(Py_None); return Py_None;
 112 }
 113
 114 PyObject *ebind(ob::EventAction::EA action, PyObject *func)
 115 {
 116   if (!PyCallable_Check(func)) {
 117     PyErr_SetString(PyExc_TypeError, "Invalid callback function.");
 118     return NULL;
 119   }
 120
 121   if (!ob::openbox->bindings()->addEvent(action, func)) {
 122     PyErr_SetString(PyExc_RuntimeError,"Unable to add binding.");
 123     return NULL;
 124   }
 125   Py_INCREF(Py_None); return Py_None;
 126 }
 127
 128 PyObject *kgrab(int screen, PyObject *func)
 129 {
 130   if (!PyCallable_Check(func)) {
 131     PyErr_SetString(PyExc_TypeError, "Invalid callback function.");
 132     return NULL;
 133   }
 134
 135   if (!ob::openbox->bindings()->grabKeyboard(screen, func)) {
 136     PyErr_SetString(PyExc_RuntimeError,"Unable to grab keybaord.");
 137     return NULL;
 138   }
 139   Py_INCREF(Py_None); return Py_None;
 140 }
 141
 142 PyObject *kungrab()
 143 {
 144   ob::openbox->bindings()->ungrabKeyboard();
 145   Py_INCREF(Py_None); return Py_None;
 146 }
 147
 148 PyObject *mgrab(int screen)
 149 {
 150   if (!ob::openbox->bindings()->grabPointer(screen)) {
 151     PyErr_SetString(PyExc_RuntimeError,"Unable to grab pointer.");
 152     return NULL;
 153   }
 154   Py_INCREF(Py_None); return Py_None;
 155 }
 156
 157 PyObject *mungrab()
 158 {
 159   ob::openbox->bindings()->ungrabPointer();
 160   Py_INCREF(Py_None); return Py_None;
 161 }
 162
 163 PyObject *kbind(PyObject *keylist, ob::KeyContext::KC context, PyObject *func)
 164 {
 165   if (!PyCallable_Check(func)) {
 166     PyErr_SetString(PyExc_TypeError, "Invalid callback function.");
 167     return NULL;
 168   }
 169   if (!PyList_Check(keylist)) {
 170     PyErr_SetString(PyExc_TypeError, "Invalid keylist. Not a list.");
 171     return NULL;
 172   }
 173
 174   ob::Bindings::StringVect vectkeylist;
 175   for (int i = 0, end = PyList_Size(keylist); i < end; ++i) {
 176     PyObject *str = PyList_GetItem(keylist, i);
 177     if (!PyString_Check(str)) {
 178       PyErr_SetString(PyExc_TypeError,
 179                      "Invalid keylist. It must contain only strings.");
 180       return NULL;
 181     }
 182     vectkeylist.push_back(PyString_AsString(str));
 183   }
 184
 185   (void)context; // XXX use this sometime!
 186   if (!ob::openbox->bindings()->addKey(vectkeylist, func)) {
 187     PyErr_SetString(PyExc_RuntimeError,"Unable to add binding.");
 188     return NULL;
 189   }
 190   Py_INCREF(Py_None); return Py_None;
 191 }
 192
 193 PyObject *kunbind(PyObject *keylist, PyObject *func)
 194 {
 195   if (!PyList_Check(keylist)) {
 196     PyErr_SetString(PyExc_TypeError, "Invalid keylist. Not a list.");
 197     return NULL;
 198   }
 199   if (!PyCallable_Check(func)) {
 200     PyErr_SetString(PyExc_TypeError, "Invalid callback function.");
 201     return NULL;
 202   }
 203
 204   ob::Bindings::StringVect vectkeylist;
 205   for (int i = 0, end = PyList_Size(keylist); i < end; ++i) {
 206     PyObject *str = PyList_GetItem(keylist, i);
 207     if (!PyString_Check(str)) {
 208       PyErr_SetString(PyExc_TypeError,
 209                      "Invalid keylist. It must contain only strings.");
 210       return NULL;
 211     }
 212     vectkeylist.push_back(PyString_AsString(str));
 213   }
 214
 215   if (!ob::openbox->bindings()->removeKey(vectkeylist, func)) {
 216       PyErr_SetString(PyExc_RuntimeError, "Could not remove callback.");
 217       return NULL;
 218   }
 219   Py_INCREF(Py_None); return Py_None;
 220 }
 221
 222 void kunbind_all()
 223 {
 224   ob::openbox->bindings()->removeAllKeys();
 225 }
 226
 227 void set_reset_key(const std::string &key)
 228 {
 229   ob::openbox->bindings()->setResetKey(key);
 230 }
 231
 232 PyObject *send_client_msg(Window target, Atom type, Window about,
 233                           long data, long data1, long data2,
 234                           long data3, long data4)
 235 {
 236   XEvent e;
 237   e.xclient.type = ClientMessage;
 238   e.xclient.format = 32;
 239   e.xclient.message_type = type;
 240   e.xclient.window = about;
 241   e.xclient.data.l[0] = data;
 242   e.xclient.data.l[1] = data1;
 243   e.xclient.data.l[2] = data2;
 244   e.xclient.data.l[3] = data3;
 245   e.xclient.data.l[4] = data4;
 246
 247   XSendEvent(**otk::display, target, false,
 248              SubstructureRedirectMask | SubstructureNotifyMask,
 249              &e);
 250   Py_INCREF(Py_None); return Py_None;
 251 }
 252
 253 void execute(const std::string &bin, int screen)
 254 {
 255   if (screen >= ScreenCount(**otk::display))
 256     screen = 0;
 257   otk::bexec(bin, otk::display->screenInfo(screen)->displayString());
 258 }
 259
 260 }