1 files changed, 78 insertions, 1 deletions
diff --git a/backend/epub/epub-document.c b/backend/epub/epub-document.c
index e2fec54a..dd5d458c 100644
--- a/backend/epub/epub-document.c
+++ b/backend/epub/epub-document.c
@@ -25,6 +25,7 @@
 #include "unzip.h"
 #include "ev-document-thumbnails.h"
 #include "ev-document-find.h"
+#include "ev-backends-manager.h"
 #include "ev-document-links.h"
 #include "ev-document-misc.h"
 #include <libxml/parser.h>
@@ -1566,6 +1567,82 @@ epub_document_set_index_pages(GList *index,GList *contentList)
 g_list_foreach(index,(GFunc)page_set_function,contentList);
 }
 
+
+static void
+add_mathjax_script_node_to_file(gchar *filename, gchar *data)
+{
+ xmlDocPtr mathdocument = xmlParseFile (filename);
+ xmlNodePtr mathroot = xmlDocGetRootElement(mathdocument);
+
+ if (mathroot == NULL)
+ return;
+
+ xmlNodePtr head = mathroot->children;
+
+ while(head != NULL) {
+ if (!xmlStrcmp(head->name,(xmlChar*)"head")) {
+ break;
+ }
+ head = head->next;
+ }
+
+ if (xmlStrcmp(head->name,(xmlChar*)"head")) {
+ return ;
+ }
+
+ xmlNodePtr script = xmlNewTextChild (head,NULL,(xmlChar*)"script",(xmlChar*)"");
+ xmlNewProp(script,(xmlChar*)"type",(xmlChar*)"text/javascript");
+ xmlNewProp(script,(xmlChar*)"src",(xmlChar*)data);
+
+ xmlSaveFormatFile(filename, mathdocument, 0);
+ xmlFreeDoc (mathdocument);
+}
+
+static void
+epub_document_add_mathJax(gchar* containeruri,gchar* documentdir)
+{
+ gchar *containerfilename= g_filename_from_uri(containeruri,NULL,NULL);
+ gchar *backenddir = ev_backends_manager_get_backends_dir();
+ GString *mathjaxdir = g_string_new(backenddir);
+ g_string_append_printf(mathjaxdir,"/epub/MathJax");
+
+ gchar *mathjaxref = g_filename_to_uri(mathjaxdir->str,NULL,NULL);
+ gchar *nodedata = g_strdup_printf("%s/MathJax.js?config=TeX-AMS-MML_SVG",mathjaxref);
+
+ open_xml_document(containerfilename);
+ set_xml_root_node(NULL);
+ xmlNodePtr manifest = xml_get_pointer_to_node((xmlChar*)"manifest",NULL,NULL);
+
+ xmlNodePtr item = manifest->xmlChildrenNode;
+
+ while (item != NULL) {
+ if (xmlStrcmp(item->name,(xmlChar*)"item")) {
+ item = item->next;
+ continue;
+ }
+
+ xmlChar *mathml = xml_get_data_from_node(item,XML_ATTRIBUTE, (xmlChar*)"properties");
+
+ if (mathml != NULL &&
+ !xmlStrcmp(mathml, (xmlChar*)"mathml") ) {
+ gchar *href = (gchar*)xml_get_data_from_node(item, XML_ATTRIBUTE, (xmlChar*)"href");
+ gchar *filename = g_strdup_printf("%s/%s",documentdir,href);
+
+ add_mathjax_script_node_to_file(filename,nodedata);
+ g_free(href);
+ g_free(filename);
+ }
+ g_free(mathml);
+ item = item->next;
+ }
+ xml_free_doc();
+ g_free(backenddir);
+ g_free(mathjaxref);
+ g_free(containerfilename);
+ g_free(nodedata);
+ g_string_free(mathjaxdir,TRUE);
+}
+
 static gboolean
 epub_document_load (EvDocument* document,
 const char* uri,
@@ -1615,7 +1692,7 @@ epub_document_load (EvDocument* document,
 epub_document->contentList = setup_document_content_list (contentOpfUri,&err,epub_document->documentdir);
 
 epub_document_set_index_pages(epub_document->index, epub_document->contentList);
- 
+ epub_document_add_mathJax(contentOpfUri,epub_document->documentdir);
 if ( epub_document->contentList == NULL )
 {
 g_propagate_error(error,err);