/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Python XPCOM language bindings.
*
* The Initial Developer of the Original Code is
* ActiveState Tool Corp.
* Portions created by the Initial Developer are Copyright (C) 2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Mark Hammond <mhammond@skippinet.com.au> (original author)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
// Py_nsIID.cpp -- IID type for Python/XPCOM
//
// This code is part of the XPCOM extensions for Python.
//
// Written May 2000 by Mark Hammond.
//
// Based heavily on the Python COM support, which is
// (c) Mark Hammond and Greg Stein.
//
// (c) 2000, ActiveState corp.
//
// @doc
#include "PyXPCOM_std.h"
#include <nsIInterfaceInfoManager.h>
PYXPCOM_EXPORT nsIID Py_nsIID_NULL = {0,0,0,{0,0,0,0,0,0,0,0}};
// @pymethod <o Py_nsIID>|xpcom|IID|Creates a new IID object
PYXPCOM_EXPORT PyObject *PyXPCOMMethod_IID(PyObject *self, PyObject *args)
{
PyObject *obIID;
PyObject *obBuf;
if ( PyArg_ParseTuple(args, "O", &obBuf)) {
if (PyBuffer_Check(obBuf)) {
PyBufferProcs *pb = NULL;
pb = obBuf->ob_type->tp_as_buffer;
void *buf = NULL;
int size = (*pb->bf_getreadbuffer)(obBuf, 0, &buf);
if (size != sizeof(nsIID) || buf==NULL) {
PyErr_Format(PyExc_ValueError, "A buffer object to be converted to an IID must be exactly %d bytes long", sizeof(nsIID));
return NULL;
}
nsIID iid;
unsigned char *ptr = (unsigned char *)buf;
iid.m0 = XPT_SWAB32(*((PRUint32 *)ptr));
ptr = ((unsigned char *)buf) + offsetof(nsIID, m1);
iid.m1 = XPT_SWAB16(*((PRUint16 *)ptr));
ptr = ((unsigned char *)buf) + offsetof(nsIID, m2);
iid.m2 = XPT_SWAB16(*((PRUint16 *)ptr));
ptr = ((unsigned char *)buf) + offsetof(nsIID, m3);
for (int i=0;i<8;i++) {
iid.m3[i] = *((PRUint8 *)ptr);
ptr += sizeof(PRUint8);
}
return new Py_nsIID(iid);
}
}
PyErr_Clear();
// @pyparm string/Unicode|iidString||A string representation of an IID, or a ContractID.
if ( !PyArg_ParseTuple(args, "O", &obIID) )
return NULL;
nsIID iid;
if (!Py_nsIID::IIDFromPyObject(obIID, &iid))
return NULL;
return new Py_nsIID(iid);
}
/*static*/ PRBool
Py_nsIID::IIDFromPyObject(PyObject *ob, nsIID *pRet) {
PRBool ok = PR_TRUE;
nsIID iid;
if (ob==NULL) {
PyErr_SetString(PyExc_RuntimeError, "The IID object is invalid!");
return PR_FALSE;
}
if (PyString_Check(ob)) {
ok = iid.Parse(PyString_AsString(ob));
if (!ok) {
PyErr_SetString(PyExc_ValueError, "The string is formatted as a valid nsID");
return PR_FALSE;
}
} else if (ob->ob_type == &type) {
iid = ((Py_nsIID *)ob)->m_iid;
} else if (PyInstance_Check(ob)) {
// Get the _iidobj_ attribute
PyObject *use_ob = PyObject_GetAttrString(ob, "_iidobj_");
if (use_ob==NULL) {
PyErr_SetString(PyExc_TypeError, "Only instances with _iidobj_ attributes can be used as IID objects");
return PR_FALSE;
}
if (use_ob->ob_type != &type) {
Py_DECREF(use_ob);
PyErr_SetString(PyExc_TypeError, "instance _iidobj_ attributes must be raw IID object");
return PR_FALSE;
}
iid = ((Py_nsIID *)use_ob)->m_iid;
Py_DECREF(use_ob);
} else {
PyErr_Format(PyExc_TypeError, "Objects of type '%s' can not be converted to an IID", ob->ob_type->tp_name);
ok = PR_FALSE;
}
if (ok) *pRet = iid;
return ok;
}
// @object Py_nsIID|A Python object, representing an IID/CLSID.
// <nl>All pythoncom functions that return a CLSID/IID will return one of these
// objects. However, in almost all cases, functions that expect a CLSID/IID
// as a param will accept either a string object, or a native Py_nsIID object.
PYXPCOM_EXPORT PyTypeObject Py_nsIID::type =
{
PyObject_HEAD_INIT(&PyType_Type)
0,
"IID",
sizeof(Py_nsIID),
0,
PyTypeMethod_dealloc, /* tp_dealloc */
0, /* tp_print */
PyTypeMethod_getattr, /* tp_getattr */
0, /* tp_setattr */
PyTypeMethod_compare, /* tp_compare */
PyTypeMethod_repr, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
0, /* tp_as_mapping */
PyTypeMethod_hash, /* tp_hash */
0, /* tp_call */
PyTypeMethod_str, /* tp_str */
};
Py_nsIID::Py_nsIID(const nsIID &riid)
{
ob_type = &type;
_Py_NewReference(this);
m_iid = riid;
}
/*static*/PyObject *
Py_nsIID::PyTypeMethod_getattr(PyObject *self, char *name)
{
Py_nsIID *me = (Py_nsIID *)self;
if (strcmp(name, "name")==0) {
char *iid_repr = nsnull;
nsCOMPtr<nsIInterfaceInfoManager> iim(do_GetService(
NS_INTERFACEINFOMANAGER_SERVICE_CONTRACTID));
if (iim!=nsnull)
iim->GetNameForIID(&me->m_iid, &iid_repr);
if (iid_repr==nsnull)
iid_repr = me->m_iid.ToString();
PyObject *ret;
if (iid_repr != nsnull) {
ret = PyString_FromString(iid_repr);
nsMemory::Free(iid_repr);
} else
ret = PyString_FromString("<cant get IID info!>");
return ret;
}
return PyErr_Format(PyExc_AttributeError, "IID objects have no attribute '%s'", name);
}
/* static */ int
Py_nsIID::PyTypeMethod_compare(PyObject *self, PyObject *other)
{
Py_nsIID *s_iid = (Py_nsIID *)self;
Py_nsIID *o_iid = (Py_nsIID *)other;
int rc = memcmp(&s_iid->m_iid, &o_iid->m_iid, sizeof(s_iid->m_iid));
return rc == 0 ? 0 : (rc < 0 ? -1 : 1);
}
/* static */ PyObject *
Py_nsIID::PyTypeMethod_repr(PyObject *self)
{
Py_nsIID *s_iid = (Py_nsIID *)self;
char buf[256];
char *sziid = s_iid->m_iid.ToString();
sprintf(buf, "_xpcom.IID('%s')", sziid);
nsMemory::Free(sziid);
return PyString_FromString(buf);
}
/* static */ PyObject *
Py_nsIID::PyTypeMethod_str(PyObject *self)
{
Py_nsIID *s_iid = (Py_nsIID *)self;
char *sziid = s_iid->m_iid.ToString();
PyObject *ret = PyString_FromString(sziid);
nsMemory::Free(sziid);
return ret;
}
/* static */long
Py_nsIID::PyTypeMethod_hash(PyObject *self)
{
const nsIID &iid = ((Py_nsIID *)self)->m_iid;
long ret = iid.m0 + iid.m1 + iid.m2;
for (int i=0;i<7;i++)
ret += iid.m3[i];
if ( ret == -1 )
return -2;
return ret;
}
/*static*/ void
Py_nsIID::PyTypeMethod_dealloc(PyObject *ob)
{
delete (Py_nsIID *)ob;
}