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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt for Python.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "dynamicqmetaobject_p.h"
#include "pysidesignal_p.h"
#include "pysideslot_p.h"
#include <shiboken.h>
#include <QtCore/QMetaObject>
#include <QtCore/QString>
#include <signature.h>
using namespace Shiboken;
struct SlotData
{
QByteArray name;
QByteArray args;
QByteArray resultType;
};
typedef struct
{
PyObject_HEAD
SlotData *slotData;
} PySideSlot;
extern "C"
{
static int slotTpInit(PyObject *, PyObject *, PyObject *);
static PyObject *slotCall(PyObject *, PyObject *, PyObject *);
// Class Definition -----------------------------------------------
static PyType_Slot PySideSlotType_slots[] = {
{Py_tp_call, (void *)slotCall},
{Py_tp_init, (void *)slotTpInit},
{Py_tp_new, (void *)PyType_GenericNew},
{Py_tp_dealloc, (void *)Sbk_object_dealloc},
{0, 0}
};
static PyType_Spec PySideSlotType_spec = {
"2:PySide2.QtCore.Slot",
sizeof(PySideSlot),
0,
Py_TPFLAGS_DEFAULT,
PySideSlotType_slots,
};
static PyTypeObject *PySideSlotTypeF(void)
{
static PyTypeObject *type = reinterpret_cast<PyTypeObject *>(
SbkType_FromSpec(&PySideSlotType_spec));
return type;
}
int slotTpInit(PyObject *self, PyObject *args, PyObject *kw)
{
static PyObject *emptyTuple = nullptr;
static const char *kwlist[] = {"name", "result", nullptr};
char *argName = nullptr;
PyObject *argResult = nullptr;
if (emptyTuple == 0)
emptyTuple = PyTuple_New(0);
if (!PyArg_ParseTupleAndKeywords(emptyTuple, kw, "|sO:QtCore.Slot",
const_cast<char **>(kwlist), &argName, &argResult)) {
return -1;
}
PySideSlot *data = reinterpret_cast<PySideSlot *>(self);
if (!data->slotData)
data->slotData = new SlotData;
for(Py_ssize_t i = 0, i_max = PyTuple_Size(args); i < i_max; i++) {
PyObject *argType = PyTuple_GET_ITEM(args, i);
const auto typeName = PySide::Signal::getTypeName(argType);
if (typeName.isEmpty()) {
PyErr_Format(PyExc_TypeError, "Unknown signal argument type: %s", Py_TYPE(argType)->tp_name);
return -1;
}
if (!data->slotData->args.isEmpty())
data->slotData->args += ',';
data->slotData->args += typeName;
}
if (argName)
data->slotData->name = argName;
data->slotData->resultType = argResult
? PySide::Signal::getTypeName(argResult) : PySide::Signal::voidType();
return 0;
}
PyObject *slotCall(PyObject *self, PyObject *args, PyObject * /* kw */)
{
static PyObject *pySlotName = nullptr;
PyObject *callback;
callback = PyTuple_GetItem(args, 0);
Py_INCREF(callback);
if (Py_TYPE(callback)->tp_call != nullptr) {
PySideSlot *data = reinterpret_cast<PySideSlot *>(self);
if (!data->slotData)
data->slotData = new SlotData;
if (data->slotData->name.isEmpty()) {
// PYSIDE-198: Use PyObject_GetAttr instead of PepFunction_GetName to support Nuitka.
AutoDecRef funcName(PyObject_GetAttr(callback, PyMagicName::name()));
data->slotData->name = String::toCString(funcName);
}
const QByteArray returnType = QMetaObject::normalizedType(data->slotData->resultType);
const QByteArray signature =
returnType + ' ' + data->slotData->name + '(' + data->slotData->args + ')';
if (!pySlotName)
pySlotName = String::fromCString(PYSIDE_SLOT_LIST_ATTR);
PyObject *pySignature = String::fromCString(signature);
PyObject *signatureList = 0;
if (PyObject_HasAttr(callback, pySlotName)) {
signatureList = PyObject_GetAttr(callback, pySlotName);
} else {
signatureList = PyList_New(0);
PyObject_SetAttr(callback, pySlotName, signatureList);
Py_DECREF(signatureList);
}
PyList_Append(signatureList, pySignature);
Py_DECREF(pySignature);
//clear data
delete data->slotData;
data->slotData = nullptr;
return callback;
}
return callback;
}
} // extern "C"
namespace PySide {
namespace Slot {
static const char *Slot_SignatureStrings[] = {
"PySide2.QtCore.Slot(self,*types:type,name:str=nullptr,result:str=nullptr)->typing.Callable[...,typing.Optional[str]]",
nullptr}; // Sentinel
void init(PyObject *module)
{
if (InitSignatureStrings(PySideSlotTypeF(), Slot_SignatureStrings) < 0)
return;
Py_INCREF(PySideSlotTypeF());
PyModule_AddObject(module, "Slot", reinterpret_cast<PyObject *>(PySideSlotTypeF()));
}
} // namespace Slot
} // namespace PySide
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