Added missing (and very important) file.

[inkscape.git] / src / extension / implementation / xslt.cpp

diff --git a/src/extension/implementation/xslt.cpp b/src/extension/implementation/xslt.cpp
index 3301679ccd1b1a184aca242e644d0ccb942bced1..f34fea64a36a30daaa4f489ec70f20814be59a5c 100644 (file)
--- a/src/extension/implementation/xslt.cpp
+++ b/src/extension/implementation/xslt.cpp
@@ -5,7 +5,7 @@
  * Authors:
  *   Ted Gould <ted@gould.cx>
  *
- * Copyright (C) 2006 Authors
+ * Copyright (C) 2006-2007 Authors
  *
  * Released under GNU GPL, read the file 'COPYING' for more information
  */
@@ -15,7 +15,20 @@
 #endif
 
 #include "xslt.h"
+#include "../extension.h"
+#include "../output.h"
 
+#include "xml/repr.h"
+#include "io/sys.h"
+#include "file.h"
+#include <unistd.h>
+#include <cstring>
+#include "document.h"
+
+#include <libxml/parser.h>
+#include <libxslt/transform.h>
+
+Inkscape::XML::Document * sp_repr_do_read (xmlDocPtr doc, const gchar * default_ns);
 
 /* Namespaces */
 namespace Inkscape {
@@ -30,8 +43,185 @@ namespace Implementation {
 
 */
 XSLT::XSLT(void) :
-    Implementation()
+    Implementation(),
+    _filename(""),
+    _parsedDoc(NULL),
+    _stylesheet(NULL)
+{
+}
+
+Glib::ustring
+XSLT::solve_reldir(Inkscape::XML::Node *reprin) {
+
+    gchar const *s = reprin->attribute("reldir");
+
+    if (!s) {
+        Glib::ustring str = sp_repr_children(reprin)->content();
+        return str;
+    }
+
+    Glib::ustring reldir = s;
+
+    if (reldir == "extensions") {
+
+        for (unsigned int i=0;
+            i < Inkscape::Extension::Extension::search_path.size();
+            i++) {
+
+            gchar * fname = g_build_filename(
+               Inkscape::Extension::Extension::search_path[i],
+               sp_repr_children(reprin)->content(),
+               NULL);
+            Glib::ustring filename = fname;
+            g_free(fname);
+
+            if ( Inkscape::IO::file_test(filename.c_str(), G_FILE_TEST_EXISTS) )
+                return filename;
+
+        }
+    } else {
+        Glib::ustring str = sp_repr_children(reprin)->content();
+        return str;
+    }
+
+    return "";
+}
+
+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 = sp_repr_children(module->get_repr());
+    while (child_repr != NULL) {
+        if (!strcmp(child_repr->name(), INKSCAPE_EXTENSION_NS "xslt")) {
+            child_repr = sp_repr_children(child_repr);
+            while (child_repr != NULL) {
+                if (!strcmp(child_repr->name(), INKSCAPE_EXTENSION_NS "file")) {
+                    _filename = solve_reldir(child_repr);
+                }
+                child_repr = sp_repr_next(child_repr);
+            }
+
+            break;
+        }
+        child_repr = sp_repr_next(child_repr);
+    }
+
+    _parsedDoc = xmlParseFile(_filename.c_str());
+    if (_parsedDoc == NULL) { return false; }
+
+    _stylesheet = xsltParseStylesheetDoc(_parsedDoc);
+
+    return true;
+}
+
+void
+XSLT::unload(Inkscape::Extension::Extension *module)
 {
+    if (!module->loaded()) { return; }
+    xsltFreeStylesheet(_stylesheet);
+    xmlFreeDoc(_parsedDoc);
+    return;
+}
+
+SPDocument *
+XSLT::open(Inkscape::Extension::Input */*module*/, gchar const *filename)
+{
+    xmlDocPtr filein = xmlParseFile(filename);
+    if (filein == NULL) { return NULL; }
+
+    const char * params[1];
+    params[0] = NULL;
+
+    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 == NULL) {
+        return NULL;
+    }
+
+    if (strcmp(rdoc->root()->name(), "svg:svg") != 0) {
+        return NULL;
+    }
+
+    gchar * base = NULL;
+    gchar * name = NULL;
+    gchar * s = NULL, * p = NULL;
+    s = g_strdup(filename);
+    p = strrchr(s, '/');
+    if (p) {
+        name = g_strdup(p + 1);
+        p[1] = '\0';
+        base = g_strdup(s);
+    } else {
+        base = NULL;
+        name = g_strdup(filename);
+    }
+    g_free(s);
+
+    SPDocument * doc = sp_document_create(rdoc, filename, base, name, true);
+
+    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 != NULL);
+    g_return_if_fail(filename != NULL);
+
+    Inkscape::XML::Node *repr = NULL;
+    repr = sp_document_repr_root (doc);
+
+    std::string tempfilename_out;
+    int tempfd_out = 0;
+    try {
+        tempfd_out = Inkscape::IO::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->base, filename)) {
+        throw Inkscape::Extension::Output::save_failed();
+    }
+
+    xmlDocPtr svgdoc = xmlParseFile(tempfilename_out.c_str());
+    close(tempfd_out);
+    if (svgdoc == NULL) {
+        return;
+    }
+
+    const char * params[1];
+    params[0] = NULL;
+
+    xmlDocPtr newdoc = xsltApplyStylesheet(_stylesheet, svgdoc, params);
+    xmlSaveFile(filename, newdoc);
+
+    xmlFreeDoc(newdoc);
+    xmlFreeDoc(svgdoc);
+
+    return;
 }