xed/plugin-loaders/python/bindings/xedmessage.override

%%
headers

#include <xed/xed-message-bus.h>
#include <xed/xed-message.h>

static GType
_helper_wrap_get_gtype_from_pytype (PyObject *pytype)
{
    PyTypeObject *type = (PyTypeObject *)pytype;
    
    if (type == &PyList_Type || type == &PyTuple_Type)
    	return G_TYPE_STRV;

    return pyg_type_from_object (pytype);
}

static gchar *
_helper_wrap_get_string (PyObject *obj)
{
	PyObject *str;
	gchar *result;
	
	str = PyObject_Str (obj);
	
	if (!str)
		return NULL;
	
	result = g_strdup (PyString_AsString (str));
	Py_DECREF (str);
	
	return result;
}

static int
_helper_wrap_list_to_gvalue (GValue *gvalue, PyObject *pyvalue)
{
	int num;
	gchar **lst;
	gint i;
	
	num = PySequence_Size (pyvalue);
	lst = g_new0 (gchar *, num + 1);
	
	for (i = 0; i < num; i++)
	{
		lst[i] = _helper_wrap_get_string (PySequence_GetItem (pyvalue, i));
		
		if (lst[i] == NULL)
		{
			g_strfreev (lst);
			return 1;
		}
	}
	
	g_value_set_boxed (gvalue, lst);
	g_strfreev (lst);
	
	return 0;
}

static int
_helper_wrap_get_gvalue_from_pyobject (GValue *gvalue, PyObject *pyvalue)
{
	if (pyvalue->ob_type == &PyList_Type || pyvalue->ob_type == &PyTuple_Type)
		return _helper_wrap_list_to_gvalue (gvalue, pyvalue);

	return pyg_value_from_pyobject(gvalue, pyvalue);
}

static int
_helper_wrap_message_set_value(XedMessage *message, PyObject *pykey, PyObject *pyvalue)
{
    gchar *key;
    GType gtype;
    GValue value = {0,};

    key = _helper_wrap_get_string(pykey);
    
    if (key == NULL)
        return 0;

    gtype = xed_message_get_key_type(message, key);
    
    if (gtype == 0) {
        PyErr_SetString(PyExc_TypeError, "invalid key");
        g_free (key);
        return 0;
    }

    g_value_init(&value, gtype);
    
    if (_helper_wrap_get_gvalue_from_pyobject (&value, pyvalue)) {
        PyErr_SetString(PyExc_TypeError,
                        "value is of the wrong type for this key");
        g_free (key);
        return 0;
    }

    xed_message_set_value(message, key, &value);
    g_value_unset(&value);
    g_free (key);
    
    return 1;
}

typedef void (*ParsePairFunc)(PyObject *key, PyObject *value, gpointer user_data);

static void
_helper_parse_pairs_dict (PyObject *dict, ParsePairFunc func, gpointer user_data)
{
    if (!dict)
        return;
    
    PyObject *key, *value;
    Py_ssize_t i = 0;
    
    while (PyDict_Next(dict, &i, &key, &value))
    {
        func(key, value, user_data);
    }
}

static void
_helper_parse_pairs(PyObject *args, PyObject *kwargs, ParsePairFunc func, gpointer user_data)
{
    guint len;
    guint i;
    
    len = PyTuple_Size(args);
    
    for (i = 0; i < len; ++i)
    {
    	PyObject *d = PyTuple_GetItem(args, i);
    	
    	if (PyDict_Check(d))
            _helper_parse_pairs_dict(d, func, user_data);
    }
  
    _helper_parse_pairs_dict(kwargs, func, user_data);  
}

static void
_helper_message_set(PyObject *key, PyObject *value, XedMessage *message)
{
    _helper_wrap_message_set_value(message, key, value);
}

static void
_helper_message_set_values(XedMessage *message, PyObject *args, PyObject *kwargs)
{
    _helper_parse_pairs(args, kwargs, (ParsePairFunc)_helper_message_set, message);
}

static XedMessage *
_helper_wrap_create_message(XedMessageBus *bus, PyObject *args, PyObject *kwargs)
{
    PyObject *pypath, *pymethod, *pydict;
    
    if (!PyArg_ParseTuple(args, "OO|O:XedMessage.create", &pypath, &pymethod, &pydict))
        return NULL;
    
    gchar *object_path = _helper_wrap_get_string(pypath);
    gchar *method = _helper_wrap_get_string(pymethod);
    
    XedMessageType *message_type = xed_message_bus_lookup (bus, object_path, method);
    XedMessage *message;
     
    if (message_type)
    {
        message = xed_message_type_instantiate(message_type, NULL);
        _helper_message_set_values(message, args, kwargs);
    }
    else
    {
    	PyErr_SetString(PyExc_StandardError, "Message type does not exist");
        message = NULL;
    }
    
    g_free(object_path);
    g_free(method);
    
    return message;
}

typedef struct {
    PyObject *func;
    PyObject *data;
} PyXedCustomNotify;

static void 
pyxed_custom_destroy_notify(gpointer user_data)
{
    PyXedCustomNotify *cunote = user_data;
    PyGILState_STATE state;
    
    g_return_if_fail(user_data);
    state = pyg_gil_state_ensure();
    Py_XDECREF(cunote->func);
    Py_XDECREF(cunote->data);
    pyg_gil_state_release(state);
    
    g_free(cunote);
}
%%
ignore-glob
  *_get_type
  xed_message_type_foreach
  xed_message_type_instantiate_valist
  xed_message_type_new_valist
  xed_message_get_valist
  xed_message_set_valist
  xed_message_set_valuesv
  xed_message_bus_disconnect_by_func
  xed_message_bus_block_by_func
  xed_message_bus_unblock_by_func
%%
override xed_message_type_new kwargs

typedef struct
{
    XedMessageType *message_type;
    PyObject *optional;
} MessageTypeSetInfo;

static void
_message_type_set(PyObject *key, PyObject *value, MessageTypeSetInfo *info)
{
    GType gtype;
    
    gchar *k = _helper_wrap_get_string(key);

    if (!k)
        return;

    gtype = _helper_wrap_get_gtype_from_pytype(value);
    
    gboolean optional = info->optional && PySequence_Contains(info->optional, key);
    
    xed_message_type_set(info->message_type, optional, k, gtype, NULL);
    g_free(k);
}

static int
_wrap_xed_message_type_new(PyGObject *self, PyObject *args, PyObject *kwargs)
{
    PyObject *pypath, *pymethod, *optional = NULL, *pydict;
    
    if (!PyArg_ParseTuple(args, "OO|OO:XedMessageType.new", &pypath, &pymethod, &optional, &pydict))
        return -1;
    
    XedMessageType *message_type = XED_MESSAGE_TYPE(g_object_new(pyg_type_from_object((PyObject *) self), NULL));
    
    MessageTypeSetInfo info = {message_type, optional && PySequence_Check(optional) ? optional : NULL};
    _helper_parse_pairs (args, kwargs, (ParsePairFunc)_message_type_set, &info);
    
    self->obj = (GObject *)message_type;    
    pygobject_register_wrapper((PyObject *) self);
    
    return 0;
}
%%
override xed_message_type_instantiate kwargs
static PyObject *
_wrap_xed_message_type_instantiate(PyGObject *self, PyObject *args, PyObject *kwargs)
{
    XedMessageType *message_type = XED_MESSAGE_TYPE (self->obj);
    XedMessage *message = xed_message_type_instantiate(message_type, NULL);
    
    _helper_message_set_values(message, args, kwargs);
    
    return pygobject_new((GObject *)message);
}
%%
override xed_message_get args
static PyObject *
_wrap_xed_message_get(PyGObject *self, PyObject *args)
{
    guint len, i;
    PyObject *ret;

    len = PyTuple_Size(args);
    
    ret = PyTuple_New(len);
    
    for (i = 0; i < len; i++) {
        GValue value = { 0, };
        PyObject *py_key = PyTuple_GetItem(args, i);
        gchar *key = _helper_wrap_get_string(py_key);
        
        if (!key) {
	    PyErr_SetString(PyExc_TypeError, "keys must be strings");
	    Py_DECREF(ret);
	    return NULL;
	}
	
	xed_message_get_value (XED_MESSAGE (self->obj), key, &value);
	g_free (key);

	PyTuple_SetItem(ret, i, pyg_value_as_pyobject(&value, TRUE));
	g_value_unset(&value);
    }
    
    return ret;
}
%%
override xed_message_get_value kwargs
static PyObject *
_wrap_xed_message_get_value(PyGObject *self, PyObject *args, PyObject *kwargs)
{
    static char *kwlist[] = { "key", NULL };
    const gchar *key;
    PyObject *ret;
    GValue value = { 0, };
    
    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s:XedMessage.get_value", kwlist, &key))
        return NULL;

    xed_message_get_value(XED_MESSAGE(self->obj), key, &value);
    ret = pyg_value_as_pyobject(&value, TRUE);
    g_value_unset(&value);
    
    return ret;
}
%%
override xed_message_set_value kwargs
static PyObject *
_wrap_xed_message_set_value(PyGObject *self, PyObject *args, PyObject *kwargs)
{
    static char *kwlist[] = { "key", "value", NULL };
    PyObject *pykey, *pyvalue;
    
    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "OO:XedMessage.set_value", kwlist, &pykey, &pyvalue))
        return NULL;
    
    if (!_helper_wrap_message_set_value(XED_MESSAGE(self->obj), pykey, pyvalue))
        return NULL;
    
    Py_INCREF(Py_None);
    return Py_None;
}
%%
override xed_message_set kwargs
static PyObject *
_wrap_xed_message_set (PyGObject *self, PyObject *args, PyObject *kwargs) {
    _helper_message_set_values(XED_MESSAGE(self->obj), args, kwargs);

    Py_INCREF(Py_None);
    return Py_None;
}
%%
override xed_message_bus_new
static int
_wrap_xed_message_bus_new(PyGObject *self)
{
    pygobject_construct (self, NULL);
    
    if (!self->obj) {
        PyErr_SetString (PyExc_RuntimeError, "could not create xed.MessageBus object");
        return -1;
    }

    return 0;
}
%%
new-constructor XED_TYPE_MESSAGE_BUS
%%
override xed_message_bus_register kwargs
static PyObject *
_wrap_xed_message_bus_register(PyGObject *self, PyObject *args, PyObject *kwargs)
{
    PyObject *pypath, *pymethod, *optional = NULL, *pydict;
    XedMessageBus *bus = XED_MESSAGE_BUS(self->obj);

    if (!PyArg_ParseTuple(args, "OO|OO:XedMessageBus.register", &pypath, &pymethod, &optional, &pydict))
        return NULL;
    
    gchar *object_path = _helper_wrap_get_string(pypath);
    gchar *method = _helper_wrap_get_string(pymethod);
    
    XedMessageType *message_type = xed_message_bus_register(bus, object_path, method, 0, NULL);
    
    g_free(object_path);
    g_free(method);
    
    if (!message_type)
    {
    	PyErr_SetString(PyExc_StandardError, "Message type already exists");
    	return NULL;
    }
    
    MessageTypeSetInfo info = {message_type, optional && PySequence_Check(optional) ? optional : NULL};
    _helper_parse_pairs (args, kwargs, (ParsePairFunc)_message_type_set, &info);
    
    return pyg_boxed_new(XED_TYPE_MESSAGE_TYPE, message_type, TRUE, TRUE);
}
%%
override xed_message_bus_connect kwargs
static void
pyxed_message_bus_connect_cb(XedMessageBus *bus, XedMessage *message, gpointer data)
{
    PyGILState_STATE state;
    PyXedCustomNotify *cunote = data;
    PyObject *pybus, *pymessage, *retobj;

    g_assert(cunote->func);

    state = pyg_gil_state_ensure();

    pybus = pygobject_new((GObject *)bus);
    pymessage = pygobject_new((GObject *)message);

    if (cunote->data) {
        retobj = PyEval_CallFunction(cunote->func, "(NNO)", pybus, pymessage, cunote->data);
    } else {
        retobj = PyEval_CallFunction(cunote->func, "(NN)", pybus, pymessage);
    }

    if (PyErr_Occurred()) {
        PyErr_Print();
    }

    Py_XDECREF(retobj);

    pyg_gil_state_release(state);
}

static PyObject *
_wrap_xed_message_bus_connect(PyGObject *self, PyObject *args, PyObject *kwargs) 
{
    static char *kwlist[] = { "domain", "name", "func", "data", NULL };
    PyObject *pyfunc, *pyarg = NULL;
    const gchar *domain;
    const gchar *name;
    PyXedCustomNotify *cunote;

    if (!PyArg_ParseTupleAndKeywords(args, kwargs,
				     "ssO|O:XedMessageBus.connect",
				     kwlist, &domain, &name, &pyfunc, &pyarg))
        return NULL;

    if (!PyCallable_Check(pyfunc)) {
        PyErr_SetString(PyExc_TypeError, "func must be a callable object");
        return NULL;
    }
    cunote = g_new(PyXedCustomNotify, 1);
    Py_INCREF(pyfunc);
    cunote->func = pyfunc;
    Py_XINCREF(pyarg);
    cunote->data = pyarg;

    guint id = xed_message_bus_connect(XED_MESSAGE_BUS(self->obj),
                                         domain,
                                         name,
                                         pyxed_message_bus_connect_cb,
                                         (gpointer)cunote,
                                         pyxed_custom_destroy_notify);
    return PyLong_FromUnsignedLong(id);
}
%%
override xed_message_bus_send kwargs
static PyObject *
_wrap_xed_message_bus_send(PyGObject *self, PyObject *args, PyObject *kwargs)
{
    /* create a new message object */
    XedMessage *message;
    XedMessageBus *bus = XED_MESSAGE_BUS(self->obj);
    message = _helper_wrap_create_message(bus, args, kwargs);
    
    if (!message)
        return NULL;
    
    xed_message_bus_send_message(bus, message);
    g_object_unref (message);
    
    Py_INCREF(Py_None);
    return Py_None;
}
%%
override xed_message_bus_send_sync kwargs
static PyObject *
_wrap_xed_message_bus_send_sync(PyGObject *self, PyObject *args, PyObject *kwargs)
{
    /* create a new message object */
    XedMessage *message;
    XedMessageBus *bus = XED_MESSAGE_BUS(self->obj);
    
    message = _helper_wrap_create_message(bus, args, kwargs);
    
    if (!message)
        return NULL;
    
    xed_message_bus_send_message_sync(bus, message);
    return pygobject_new((GObject *)message);
}
%%
override-slot XedMessage.tp_getattro
static PyObject *
_wrap_xed_message_tp_getattro(PyObject *self, PyObject *attrname)
{
	XedMessage *message = XED_MESSAGE(((PyGObject *)self)->obj);
	XedMessageType *type;

	gchar *name = _helper_wrap_get_string (attrname);
	gboolean exists;
	gboolean intype;
	PyObject *ret;
	
	if (name == NULL)
	{
		PyErr_SetString(PyExc_TypeError, "attr name somehow not a string");
		return NULL;
	}
	
	g_object_get (message, "type", &type, NULL);
	intype = xed_message_type_lookup (type, name) != G_TYPE_INVALID;
	xed_message_type_unref (type);
	
	exists = xed_message_has_key (message, name);
	
	if (!intype)
	{
		ret = PyObject_GenericGetAttr(self, attrname);
	}
	else if (exists)
	{
		GValue value = { 0, };
		xed_message_get_value (message, name, &value);
		ret = pyg_value_as_pyobject(&value, TRUE);
		g_value_unset (&value);
	}
	else
	{
		Py_INCREF(Py_None);
		ret = Py_None;
	}

	g_free (name);
	return ret;
}
%%
override-slot XedMessage.tp_setattro
static int
_wrap_xed_message_tp_setattro(PyObject *self, PyObject *attrname, PyObject *value)
{
	XedMessage *message = XED_MESSAGE(((PyGObject *)self)->obj);

	if (!_helper_wrap_message_set_value(message, attrname, value))
	{
		return PyObject_GenericSetAttr(self, attrname, value);
	}
	else
	{
		return 1;
	}
}