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scrap.c
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scrap.c
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/*
pygame - Python Game Library
Copyright (C) 2006, 2007 Rene Dudfield, Marcus von Appen
Originally written and put in the public domain by Sam Lantinga.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* Handle clipboard text and data in arbitrary formats */
#include "pgcompat.h"
#include <limits.h>
#include <stdio.h>
#include "pgcompat.h"
#include "SDL.h"
#include "SDL_syswm.h"
#include "scrap.h"
#include "pygame.h"
#include "doc/scrap_doc.h"
/**
* Indicates, whether pygame.scrap was initialized or not.
*/
static int _scrapinitialized = 0;
/**
* Currently active Clipboard object.
*/
static ScrapClipType _currentmode;
static PyObject *_selectiondata = NULL;
static PyObject *_clipdata = NULL;
/* Forward declarations. */
static PyObject *
_scrap_get_types(PyObject *self, PyObject *args);
static PyObject *
_scrap_contains(PyObject *self, PyObject *args);
static PyObject *
_scrap_get_scrap(PyObject *self, PyObject *args);
static PyObject *
_scrap_put_scrap(PyObject *self, PyObject *args);
static PyObject *
_scrap_lost_scrap(PyObject *self, PyObject *args);
static PyObject *
_scrap_set_mode(PyObject *self, PyObject *args);
/* Determine what type of clipboard we are using */
#if IS_SDLv2
#define SDL2_SCRAP
#include "scrap_sdl2.c"
#elif defined(__unix__) && defined(SDL_VIDEO_DRIVER_X11)
/*!defined(__QNXNTO__) &&*/
#define X11_SCRAP
#include <time.h> /* Needed for clipboard timeouts. */
#include "scrap_x11.c"
#elif defined(__WIN32__)
#define WIN_SCRAP
#include "scrap_win.c"
/*
#elif defined(__QNXNTO__)
#define QNX_SCRAP
static uint32_t _cliptype = 0;
#include "scrap_qnx.c"
*/
#elif defined(__APPLE__)
#define MAC_SCRAP
#include "scrap_mac.c"
#else
#error Unknown window manager for clipboard handling
#endif /* scrap type */
/**
* \brief Indicates whether the scrap module is already initialized.
*
* \return 0 if the module is not initialized, 1, if it is.
*/
int
pygame_scrap_initialized(void)
{
return _scrapinitialized;
}
#if !defined(MAC_SCRAP)
/*
* Initializes the pygame scrap module.
*/
static PyObject *
_scrap_init(PyObject *self, PyObject *args)
{
VIDEO_INIT_CHECK();
if (!pygame_scrap_initialized()) {
Py_XDECREF(_clipdata);
Py_XDECREF(_selectiondata);
_clipdata = PyDict_New();
_selectiondata = PyDict_New();
}
/* In case we've got not video surface, we won't initialize
* anything.
*/
#if IS_SDLv1
if (!SDL_GetVideoSurface())
return RAISE(pgExc_SDLError, "No display mode is set");
#endif
if (!pygame_scrap_init())
return RAISE(pgExc_SDLError, SDL_GetError());
Py_RETURN_NONE;
}
#endif
/*
* Indicates whether the scrap module is currently initialized.
*
* Note: All platforms supported here.
*/
static PyObject *
_scrap_get_init(PyObject *self, PyObject *args)
{
return PyBool_FromLong(pygame_scrap_initialized());
}
#if !defined(MAC_SCRAP)
/*
* Gets the currently available types from the active clipboard.
*/
static PyObject *
_scrap_get_types(PyObject *self, PyObject *args)
{
int i = 0;
char **types;
char *type;
PyObject *list;
PyObject *tmp;
PYGAME_SCRAP_INIT_CHECK();
if (!pygame_scrap_lost()) {
switch (_currentmode) {
case SCRAP_SELECTION:
return PyDict_Keys(_selectiondata);
case SCRAP_CLIPBOARD:
default:
return PyDict_Keys(_clipdata);
}
}
list = PyList_New(0);
types = pygame_scrap_get_types();
if (!types)
return list;
while (types[i] != NULL) {
type = types[i];
tmp = PyUnicode_DecodeASCII(type, strlen(type), 0);
if (!tmp) {
Py_DECREF(list);
return 0;
}
if (PyList_Append(list, tmp)) {
Py_DECREF(list);
Py_DECREF(tmp);
return 0;
}
Py_DECREF(tmp);
i++;
}
return list;
}
#endif
#if !defined(MAC_SCRAP)
/*
* Checks whether the active clipboard contains a certain type.
*/
static PyObject *
_scrap_contains(PyObject *self, PyObject *args)
{
char *type = NULL;
if (!PyArg_ParseTuple(args, "s", &type))
return NULL;
if (pygame_scrap_contains(type))
Py_RETURN_TRUE;
Py_RETURN_FALSE;
}
#endif
#if !defined(MAC_SCRAP)
/*
* Gets the content for a certain type from the active clipboard.
*/
static PyObject *
_scrap_get_scrap(PyObject *self, PyObject *args)
{
char *scrap = NULL;
PyObject *retval;
char *scrap_type;
unsigned long count;
PYGAME_SCRAP_INIT_CHECK();
if (!PyArg_ParseTuple(args, "s", &scrap_type))
return NULL;
if (!pygame_scrap_lost()) {
/* Still own the clipboard. */
PyObject *scrap_dict = NULL;
PyObject *key = NULL;
PyObject *val = NULL;
switch (_currentmode) {
case SCRAP_SELECTION:
scrap_dict = _selectiondata;
break;
case SCRAP_CLIPBOARD:
default:
scrap_dict = _clipdata;
break;
}
#if PY3
key = PyUnicode_FromString(scrap_type);
if (NULL == key) {
return PyErr_Format(PyExc_ValueError,
"invalid scrap data type identifier (%s)",
scrap_type);
}
val = PyDict_GetItemWithError(scrap_dict, key);
Py_DECREF(key);
if (NULL == val) {
if (PyErr_Occurred()) {
return PyErr_Format(PyExc_SystemError,
"pygame.scrap internal error (key=%s)",
scrap_type);
}
Py_RETURN_NONE;
}
#else /* !PY3 */
val = PyDict_GetItemString(scrap_dict, scrap_type);
if (NULL == val) {
Py_RETURN_NONE;
}
#endif /* !PY3 */
Py_INCREF(val);
return val;
}
/* pygame_get_scrap() only returns NULL or !NULL, but won't set any
* errors. */
scrap = pygame_scrap_get(scrap_type, &count);
if (!scrap)
Py_RETURN_NONE;
retval = Bytes_FromStringAndSize(scrap, count);
#if defined(PYGAME_SCRAP_FREE_STRING)
free(scrap);
#endif
return retval;
}
#endif
#if !defined(MAC_SCRAP)
/*
* This will put a python string into the clipboard.
*/
static PyObject *
_scrap_put_scrap(PyObject *self, PyObject *args)
{
int scraplen;
char *scrap = NULL;
char *scrap_type;
PyObject *tmp;
#if PY3
static const char argfmt[] = "sy#";
#else
static char argfmt[] = "st#";
#endif
PYGAME_SCRAP_INIT_CHECK();
if (!PyArg_ParseTuple(args, argfmt, &scrap_type, &scrap, &scraplen)) {
return NULL;
}
/* Set it in the clipboard. */
if (!pygame_scrap_put(scrap_type, scraplen, scrap))
return RAISE(pgExc_SDLError,
"content could not be placed in clipboard.");
/* Add or replace the set value. */
switch (_currentmode) {
case SCRAP_SELECTION: {
tmp = Bytes_FromStringAndSize(scrap, scraplen);
PyDict_SetItemString(_selectiondata, scrap_type, tmp);
Py_DECREF(tmp);
break;
}
case SCRAP_CLIPBOARD:
default: {
tmp = Bytes_FromStringAndSize(scrap, scraplen);
PyDict_SetItemString(_clipdata, scrap_type, tmp);
Py_DECREF(tmp);
break;
}
}
Py_RETURN_NONE;
}
#endif
#if !defined(MAC_SCRAP)
/*
* Checks whether the pygame window has lost the clipboard.
*/
static PyObject *
_scrap_lost_scrap(PyObject *self, PyObject *args)
{
PYGAME_SCRAP_INIT_CHECK();
if (pygame_scrap_lost())
Py_RETURN_TRUE;
Py_RETURN_FALSE;
}
#endif
#if !defined(MAC_SCRAP)
/*
* Sets the clipboard mode. This only works for the X11 environment, which
* diverses between mouse selections and the clipboard.
*/
static PyObject *
_scrap_set_mode(PyObject *self, PyObject *args)
{
PYGAME_SCRAP_INIT_CHECK();
if (!PyArg_ParseTuple(args, "i", &_currentmode))
return NULL;
if (_currentmode != SCRAP_CLIPBOARD && _currentmode != SCRAP_SELECTION)
return RAISE(PyExc_ValueError, "invalid clipboard mode");
#ifndef X11_SCRAP
/* Force the clipboard, if not in a X11 environment. */
_currentmode = SCRAP_CLIPBOARD;
#endif
Py_RETURN_NONE;
}
#endif /* !defined(MAC_SCRAP) */
static PyMethodDef scrap_builtins[] = {
/*
* Only initialise these functions for ones we know about.
*
* Note, the macosx stuff is done in sdlosx_main.m
*/
#if (defined(X11_SCRAP) || defined(WIN_SCRAP) || defined(QNX_SCRAP) || \
defined(MAC_SCRAP) || defined(SDL2_SCRAP))
{"init", _scrap_init, 1, DOC_PYGAMESCRAPINIT},
{"get_init", _scrap_get_init, METH_NOARGS, DOC_PYGAMESCRAPGETINIT},
{"contains", _scrap_contains, METH_VARARGS, DOC_PYGAMESCRAPCONTAINS},
{"get", _scrap_get_scrap, METH_VARARGS, DOC_PYGAMESCRAPGET},
{"get_types", _scrap_get_types, METH_NOARGS, DOC_PYGAMESCRAPGETTYPES},
{"put", _scrap_put_scrap, METH_VARARGS, DOC_PYGAMESCRAPPUT},
{"lost", _scrap_lost_scrap, METH_NOARGS, DOC_PYGAMESCRAPLOST},
{"set_mode", _scrap_set_mode, METH_VARARGS, DOC_PYGAMESCRAPSETMODE},
#endif
{NULL, NULL, 0, NULL}};
MODINIT_DEFINE(scrap)
{
#if PY3
static struct PyModuleDef _module = {PyModuleDef_HEAD_INIT,
"scrap",
"",
-1,
scrap_builtins,
NULL,
NULL,
NULL,
NULL};
#endif
/* imported needed apis; Do this first so if there is an error
the module is not loaded.
*/
import_pygame_base();
if (PyErr_Occurred()) {
MODINIT_ERROR;
}
/* create the module */
#if PY3
return PyModule_Create(&_module);
#else
Py_InitModule3(MODPREFIX "scrap", scrap_builtins, NULL);
#endif
}