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/** \file
* Code for handling XSLT extensions.
*/
/*
* Authors:
* Ted Gould <ted@gould.cx>
* Jon A. Cruz <jon@joncruz.org>
* Abhishek Sharma
*
* Copyright (C) 2006-2007 Authors
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <glibmm/fileutils.h>
#include "file.h"
#include "xslt.h"
#include "../extension.h"
#include "../output.h"
#include "extension/input.h"
#include "io/resource.h"
#include <unistd.h>
#include <cstring>
#include "document.h"
#include <libxslt/transform.h>
#include <libxslt/xsltutils.h>
Inkscape::XML::Document * sp_repr_do_read (xmlDocPtr doc, const gchar * default_ns);
/* Namespaces */
namespace Inkscape {
namespace Extension {
namespace Implementation {
/* Real functions */
/**
\return A XSLT object
\brief This function creates a XSLT object and sets up the
variables.
*/
XSLT::XSLT() :
Implementation(),
_filename(""),
_parsedDoc(nullptr),
_stylesheet(nullptr)
{
}
Glib::ustring XSLT::solve_reldir(Inkscape::XML::Node *reprin) {
gchar const *s = reprin->attribute("reldir");
if (!s) {
Glib::ustring str = reprin->firstChild()->content();
return str;
}
Glib::ustring reldir = s;
if (reldir == "extensions") {
using namespace Inkscape::IO::Resource;
return get_filename(EXTENSIONS, reprin->firstChild()->content());
} else {
Glib::ustring str = reprin->firstChild()->content();
return str;
}
}
bool XSLT::check(Inkscape::Extension::Extension *module)
{
if (load(module)) {
unload(module);
return true;
} else {
return false;
}
}
bool XSLT::load(Inkscape::Extension::Extension *module)
{
if (module->loaded()) { return true; }
Inkscape::XML::Node *child_repr = module->get_repr()->firstChild();
while (child_repr != nullptr) {
if (!strcmp(child_repr->name(), INKSCAPE_EXTENSION_NS "xslt")) {
child_repr = child_repr->firstChild();
while (child_repr != nullptr) {
if (!strcmp(child_repr->name(), INKSCAPE_EXTENSION_NS "file")) {
_filename = solve_reldir(child_repr);
}
child_repr = child_repr->next();
}
break;
}
child_repr = child_repr->next();
}
_parsedDoc = xmlParseFile(_filename.c_str());
if (_parsedDoc == nullptr) { return false; }
_stylesheet = xsltParseStylesheetDoc(_parsedDoc);
return true;
}
void XSLT::unload(Inkscape::Extension::Extension *module)
{
if (!module->loaded()) { return; }
xsltFreeStylesheet(_stylesheet);
// No need to use xmlfreedoc(_parsedDoc), it's handled by xsltFreeStylesheet(_stylesheet);
return;
}
SPDocument * XSLT::open(Inkscape::Extension::Input */*module*/,
gchar const *filename)
{
xmlDocPtr filein = xmlParseFile(filename);
if (filein == nullptr) { return nullptr; }
const char * params[1];
params[0] = nullptr;
xmlDocPtr result = xsltApplyStylesheet(_stylesheet, filein, params);
xmlFreeDoc(filein);
Inkscape::XML::Document * rdoc = sp_repr_do_read( result, SP_SVG_NS_URI);
xmlFreeDoc(result);
if (rdoc == nullptr) {
return nullptr;
}
if (strcmp(rdoc->root()->name(), "svg:svg") != 0) {
return nullptr;
}
gchar * base = nullptr;
gchar * name = nullptr;
gchar * s = nullptr, * p = nullptr;
s = g_strdup(filename);
p = strrchr(s, '/');
if (p) {
name = g_strdup(p + 1);
p[1] = '\0';
base = g_strdup(s);
} else {
base = nullptr;
name = g_strdup(filename);
}
g_free(s);
SPDocument * doc = SPDocument::createDoc(rdoc, filename, base, name, true, nullptr);
g_free(base); g_free(name);
return doc;
}
void XSLT::save(Inkscape::Extension::Output *module, SPDocument *doc, gchar const *filename)
{
/* TODO: Should we assume filename to be in utf8 or to be a raw filename?
* See JavaFXOutput::save for discussion. */
g_return_if_fail(doc != nullptr);
g_return_if_fail(filename != nullptr);
Inkscape::XML::Node *repr = doc->getReprRoot();
std::string tempfilename_out;
int tempfd_out = 0;
try {
tempfd_out = Glib::file_open_tmp(tempfilename_out, "ink_ext_XXXXXX");
} catch (...) {
/// \todo Popup dialog here
return;
}
if (!sp_repr_save_rebased_file(repr->document(), tempfilename_out.c_str(), SP_SVG_NS_URI,
doc->getBase(), filename)) {
throw Inkscape::Extension::Output::save_failed();
}
xmlDocPtr svgdoc = xmlParseFile(tempfilename_out.c_str());
close(tempfd_out);
if (svgdoc == nullptr) {
return;
}
std::list<std::string> params;
module->paramListString(params);
const int max_parameters = params.size() * 2;
const char * xslt_params[max_parameters+1] ;
int count = 0;
for(std::list<std::string>::iterator t=params.begin(); t != params.end(); ++t) {
std::size_t pos = t->find("=");
std::ostringstream parameter;
std::ostringstream value;
parameter << t->substr(2,pos-2);
value << t->substr(pos+1);
xslt_params[count++] = g_strdup_printf("%s", parameter.str().c_str());
xslt_params[count++] = g_strdup_printf("'%s'", value.str().c_str());
}
xslt_params[count] = nullptr;
xmlDocPtr newdoc = xsltApplyStylesheet(_stylesheet, svgdoc, xslt_params);
//xmlSaveFile(filename, newdoc);
int success = xsltSaveResultToFilename(filename, newdoc, _stylesheet, 0);
xmlFreeDoc(newdoc);
xmlFreeDoc(svgdoc);
xsltCleanupGlobals();
xmlCleanupParser();
if (success < 1) {
throw Inkscape::Extension::Output::save_failed();
}
return;
}
} /* Implementation */
} /* module */
} /* Inkscape */
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
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