diff options
Diffstat (limited to 'backend/epub')
| -rw-r--r-- | backend/epub/epub-document.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/backend/epub/epub-document.c b/backend/epub/epub-document.c index d0dce118..9caa8432 100644 --- a/backend/epub/epub-document.c +++ b/backend/epub/epub-document.c @@ -1267,6 +1267,139 @@ epub_document_get_page(EvDocument *document, return page ; } +static void +change_to_night_sheet(contentListNode *nodedata,gpointer user_data) +{ + gchar *filename = g_filename_from_uri(nodedata->value,NULL,NULL); + open_xml_document(filename); + set_xml_root_node(NULL); + xmlNodePtr head =xml_get_pointer_to_node((xmlChar*)"head",NULL,NULL); + + xmlretval = NULL; + xml_parse_children_of_node(head,(xmlChar*)"link",(xmlChar*)"rel",(xmlChar*)"stylesheet"); + + xmlNodePtr day = xmlretval; + xmlSetProp(day,(xmlChar*)"rel",(xmlChar*)"alternate stylesheet"); + + xmlretval = NULL; + xml_parse_children_of_node(head,(xmlChar*)"link",(xmlChar*)"class",(xmlChar*)"night"); + xmlSetProp(xmlretval,(xmlChar*)"rel",(xmlChar*)"stylesheet"); + xmlSaveFormatFile (filename, xmldocument, 0); + xml_free_doc(); + g_free(filename); +} + +static void +change_to_day_sheet(contentListNode *nodedata,gpointer user_data) +{ + gchar *filename = g_filename_from_uri(nodedata->value,NULL,NULL); + open_xml_document(filename); + set_xml_root_node(NULL); + xmlNodePtr head =xml_get_pointer_to_node((xmlChar*)"head",NULL,NULL); + + xmlretval = NULL; + xml_parse_children_of_node(head,(xmlChar*)"link",(xmlChar*)"rel",(xmlChar*)"stylesheet"); + + xmlNodePtr day = xmlretval; + xmlSetProp(day,(xmlChar*)"rel",(xmlChar*)"alternate stylesheet"); + + xmlretval = NULL; + xml_parse_children_of_node(head,(xmlChar*)"link",(xmlChar*)"class",(xmlChar*)"day"); + xmlSetProp(xmlretval,(xmlChar*)"rel",(xmlChar*)"stylesheet"); + xmlSaveFormatFile (filename, xmldocument, 0); + xml_free_doc(); + g_free(filename); +} + +static gchar* +epub_document_get_alternate_stylesheet(gchar *docuri) +{ + gchar *filename = g_filename_from_uri(docuri,NULL,NULL); + open_xml_document(filename); + + set_xml_root_node(NULL); + + xmlNodePtr head= xml_get_pointer_to_node((xmlChar*)"head",NULL,NULL); + + xmlretval = NULL; + + xml_parse_children_of_node(head,(xmlChar*)"link",(xmlChar*)"class",(xmlChar*)"night"); + + if (xmlretval != NULL) { + return (gchar*)xml_get_data_from_node(xmlretval,XML_ATTRIBUTE,(xmlChar*)"href"); + } + g_free(filename); + xml_free_doc(); + return NULL; +} + +static void +add_night_sheet(contentListNode *listdata,gchar *sheet) +{ + gchar *sheeturi = g_filename_to_uri(sheet,NULL,NULL); + open_xml_document(listdata->value); + + set_xml_root_node(NULL); + xmlNodePtr head = xml_get_pointer_to_node((xmlChar*)"head",NULL,NULL); + + xmlNodePtr link = xmlNewTextChild(head,NULL,(xmlChar*)"link",NULL); + xmlAttrPtr href = xmlNewProp(link,(xmlChar*)"href",(xmlChar*)sheeturi); + xmlAttrPtr rel = xmlNewProp(link,(xmlChar*)"rel",(xmlChar*)"alternate stylesheet"); + xmlAttrPtr class = xmlNewProp(link,(xmlChar*)"class",(xmlChar*)"night"); + + xmlSaveFormatFile (listdata->value, xmldocument, 0); + xml_free_doc(); + g_free(sheeturi); +} + +static void +epub_document_check_add_night_sheet(EvDocument *document) +{ + EpubDocument *epub_document = EPUB_DOCUMENT(document); + + g_return_if_fail(EPUB_IS_DOCUMENT(epub_document)); + + /* + * We'll only check the first page for a supplied night mode stylesheet. + * Odds are, if this one has it, all others have it too. + */ + contentListNode *node = epub_document->contentList->data; + gchar* stylesheetfilename = epub_document_get_alternate_stylesheet((gchar*)node->value) ; + + if (stylesheetfilename == NULL) { + gchar *style = "body {color:rgb(255,255,255);background-color:rgb(0,0,0);text-align:justify;line-spacing:1.8; margin-top:0px;margin-bottom:4px;margin-right:50px;\ + margin-left:50px;text-indent:3em;"; + + gchar *csspath = g_strdup_printf("%s/atrilnightstyle.css",epub_document->documentdir); + + + GFile *styles = g_file_new_for_path (csspath); + GOutputStream *outstream = (GOutputStream*)g_file_create(styles,G_FILE_CREATE_PRIVATE,NULL,NULL); + if ( g_output_stream_write((GOutputStream*)outstream,style,strlen(style),NULL,NULL) == -1 ) + { + return ; + } + g_output_stream_close((GOutputStream*)outstream,NULL,NULL); + g_object_unref(styles) ; + g_object_unref(outstream) ; + //add this stylesheet to each document, for later. + g_list_foreach(epub_document->contentList,(GFunc)add_night_sheet,csspath); + g_free(csspath); + } + g_free(stylesheetfilename); +} + +static void +epub_document_toggle_night_mode(EvDocument *document,gboolean night) +{ + EpubDocument *epub_document = EPUB_DOCUMENT(document); + + g_return_if_fail(EPUB_IS_DOCUMENT(epub_document)); + if (night) + g_list_foreach(epub_document->contentList,(GFunc)change_to_night_sheet,NULL); + else + g_list_foreach(epub_document->contentList,(GFunc)change_to_day_sheet,NULL); +} static gboolean epub_document_load (EvDocument* document, @@ -1388,4 +1521,6 @@ epub_document_class_init (EpubDocumentClass *klass) ev_document_class->get_n_pages = epub_document_get_n_pages; ev_document_class->get_info = epub_document_get_info; ev_document_class->get_page = epub_document_get_page; + ev_document_class->toggle_night_mode = epub_document_toggle_night_mode; + ev_document_class->check_add_night_sheet = epub_document_check_add_night_sheet; }
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