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