[tracker] tracker-extract, msoffice-xml: Move querying content type to a new method

[Aleksander Morgado <aleksm src gnome org>]

commit c9029dac1e4a752aa950fab2aae3c553e1f6809e
Author: Aleksander Morgado <aleksander lanedo com>
Date:   Wed Nov 24 11:15:54 2010 +0100

    tracker-extract, msoffice-xml: Move querying content type to a new method

 src/tracker-extract/tracker-extract-msoffice-xml.c |   99 +++++++++++--------
 1 files changed, 57 insertions(+), 42 deletions(-)
---
diff --git a/src/tracker-extract/tracker-extract-msoffice-xml.c b/src/tracker-extract/tracker-extract-msoffice-xml.c
index 7e34dd3..a8652a4 100644
--- a/src/tracker-extract/tracker-extract-msoffice-xml.c
+++ b/src/tracker-extract/tracker-extract-msoffice-xml.c
@@ -214,7 +214,7 @@ xml_end_element_handler_document_data (GMarkupParseContext  *context,
 }
 
 static void
-xml_start_element_handler_core_data	(GMarkupParseContext  *context,
+xml_start_element_handler_core_data (GMarkupParseContext  *context,
                                      const gchar           *element_name,
                                      const gchar          **attribute_names,
                                      const gchar          **attribute_values,
@@ -600,69 +600,84 @@ xml_start_element_handler_content_types (GMarkupParseContext  *context,
 	}
 }
 
-static void
-extract_msoffice_xml (const gchar          *uri,
-                      TrackerSparqlBuilder *preupdate,
-                      TrackerSparqlBuilder *metadata)
+static MsOfficeXMLFileType
+msoffice_xml_get_file_type (const gchar *uri)
 {
-	MsOfficeXMLParserInfo info;
-	MsOfficeXMLFileType file_type;
-	TrackerConfig *config;
 	GFile *file;
 	GFileInfo *file_info;
-	GMarkupParseContext *context = NULL;
-	GError *error = NULL;
-	gulong  total_bytes;
-	GMarkupParser parser = {
-		xml_start_element_handler_content_types,
-		xml_end_element_handler_document_data,
-		NULL,
-		NULL,
-		NULL
-	};
 	const gchar *mime_used;
 
-	if (G_UNLIKELY (maximum_size_error_quark == 0)) {
-		maximum_size_error_quark = g_quark_from_static_string ("maximum_size_error");
-	}
-
+	/* Get GFile from uri... */
 	file = g_file_new_for_uri (uri);
-
 	if (!file) {
-		g_warning ("Could not create GFile for URI:'%s'",
-		           uri);
-		return;
+		g_warning ("Could not create GFile for URI:'%s'", uri);
+		return FILE_TYPE_INVALID;
 	}
 
+	/* Get GFileInfo from GFile... (synchronous) */
 	file_info = g_file_query_info (file,
 	                               G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE,
 	                               G_FILE_QUERY_INFO_NONE,
 	                               NULL,
 	                               NULL);
 	g_object_unref (file);
-
 	if (!file_info) {
-		g_warning ("Could not get GFileInfo for URI:'%s'",
-		           uri);
-		return;
+		g_warning ("Could not get GFileInfo for URI:'%s'", uri);
+		return FILE_TYPE_INVALID;
 	}
 
+	/* Get Content Type from GFileInfo */
 	mime_used = g_file_info_get_content_type (file_info);
+	g_object_unref (file_info);
 
+	/* MsOffice Word document? */
 	if (g_ascii_strcasecmp (mime_used, "application/vnd.openxmlformats-officedocument.wordprocessingml.document") == 0) {
-		file_type = FILE_TYPE_DOCX;
-	} else if (g_ascii_strcasecmp (mime_used, "application/vnd.openxmlformats-officedocument.presentationml.presentation") == 0) {
-		file_type = FILE_TYPE_PPTX;
-	} else if (g_ascii_strcasecmp (mime_used, "application/vnd.openxmlformats-officedocument.presentationml.slideshow") == 0) {
-		file_type = FILE_TYPE_PPSX;
-	} else if (g_ascii_strcasecmp (mime_used, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet") == 0) {
-		file_type = FILE_TYPE_XLSX;
-	} else {
-		g_message ("Mime type was not recognised:'%s'", mime_used);
-		file_type = FILE_TYPE_INVALID;
+		return FILE_TYPE_DOCX;
 	}
 
-	g_object_unref (file_info);
+	/* MsOffice Powerpoint document? */
+	if (g_ascii_strcasecmp (mime_used, "application/vnd.openxmlformats-officedocument.presentationml.presentation") == 0) {
+		return FILE_TYPE_PPTX;
+	}
+	if (g_ascii_strcasecmp (mime_used, "application/vnd.openxmlformats-officedocument.presentationml.slideshow") == 0) {
+		return FILE_TYPE_PPSX;
+	}
+
+	/* MsOffice Excel document? */
+	if (g_ascii_strcasecmp (mime_used, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet") == 0) {
+		return FILE_TYPE_XLSX;
+	}
+
+	g_message ("Mime type was not recognised:'%s'", mime_used);
+	return FILE_TYPE_INVALID;
+}
+
+static void
+extract_msoffice_xml (const gchar          *uri,
+                      TrackerSparqlBuilder *preupdate,
+                      TrackerSparqlBuilder *metadata)
+{
+	MsOfficeXMLParserInfo info;
+	MsOfficeXMLFileType file_type;
+	TrackerConfig *config;
+
+	GMarkupParseContext *context = NULL;
+	GError *error = NULL;
+	gulong  total_bytes;
+	GMarkupParser parser = {
+		xml_start_element_handler_content_types,
+		xml_end_element_handler_document_data,
+		NULL,
+		NULL,
+		NULL
+	};
+
+	if (G_UNLIKELY (maximum_size_error_quark == 0)) {
+		maximum_size_error_quark = g_quark_from_static_string ("maximum_size_error");
+	}
+
+	/* Get current Content Type */
+	file_type = msoffice_xml_get_file_type (uri);
 
 	/* Setup conf */
 	config = tracker_main_get_config ();
@@ -688,7 +703,7 @@ extract_msoffice_xml (const gchar          *uri,
 	tracker_gsf_parse_xml_in_zip (uri,
 	                              "[Content_Types].xml",
 	                              context,
-                                  &error);
+	                              &error);
 
 	/* If we got any content, add it */
 	if (info.content) {