Change api to lookup from uri. Do fast lookup first, if the type is

2005-05-08  Marco Pesenti Gritti  <mpg@redhat.com>

        * shell/ev-document-types.c: (get_slow_mime_type),
        (get_document_type_from_mime), (ev_document_type_lookup):
        * shell/ev-document-types.h:

        Change api to lookup from uri. Do fast lookup first, if the
        type is unknown try with data sniffing.

        * shell/ev-window.c: (ev_window_open), (ev_window_open_uri_list):
        * thumbnailer/evince-thumbnailer.c: (evince_thumbnail_pngenc_get):

        Adapt to api change

3 files changed, 69 insertions, 24 deletions

diff --git a/shell/ev-document-types.c b/shell/ev-document-types.c
index 2d64594..a373d18 100644
--- a/shell/ev-document-types.c
+++ b/shell/ev-document-types.c
@@ -36,6 +36,9 @@
 #endif
 
 #include <string.h>
+#include <libgnomevfs/gnome-vfs-mime-utils.h>
+#include <libgnomevfs/gnome-vfs-file-info.h>
+#include <libgnomevfs/gnome-vfs-ops.h>
 
 typedef struct _EvDocumentType EvDocumentType;
 struct _EvDocumentType
@@ -102,16 +105,36 @@ mime_type_supported_by_gdk_pixbuf (const gchar *mime_type)
 	return retval;
 }
 
-GType
-ev_document_type_lookup (const char *mime_type)
+static char *
+get_slow_mime_type (const char *uri)
 {
-	int i;
+        GnomeVFSFileInfo *info;
+        char *mime_type;
+        GnomeVFSResult result;
+
+        info = gnome_vfs_file_info_new ();
+        result = gnome_vfs_get_file_info (uri, info,
+                                          GNOME_VFS_FILE_INFO_GET_MIME_TYPE |
+                                          GNOME_VFS_FILE_INFO_FORCE_SLOW_MIME_TYPE |
+                                          GNOME_VFS_FILE_INFO_FOLLOW_LINKS);
+        if (info->mime_type == NULL || result != GNOME_VFS_OK) {
+                mime_type = NULL;
+        } else {
+                mime_type = g_strdup (info->mime_type);
+        }
+        gnome_vfs_file_info_unref (info);
+
+        return mime_type;
+}
 
-	g_return_val_if_fail (mime_type, G_TYPE_INVALID);
+static GType
+get_document_type_from_mime (const char *mime_type)
+{
+	int i;
 
-	for (i=0;i<G_N_ELEMENTS (document_types);i++) {
-		if (0==strcmp(mime_type, document_types[i].mime_type)) {
-			g_assert (document_types[i].document_type_factory_callback!=NULL);
+	for (i = 0; i < G_N_ELEMENTS (document_types); i++) {
+		if (strcmp (mime_type, document_types[i].mime_type) == 0) {
+			g_assert (document_types[i].document_type_factory_callback != NULL);
 			return document_types[i].document_type_factory_callback();
 		}
 	}
@@ -122,3 +145,33 @@ ev_document_type_lookup (const char *mime_type)
 
 	return G_TYPE_INVALID;
 }
+
+GType
+ev_document_type_lookup (const char *uri, char **mime_type)
+{
+	GType type = G_TYPE_INVALID;
+	char *mime;
+
+	g_return_val_if_fail (uri, G_TYPE_INVALID);
+
+	mime = gnome_vfs_get_mime_type (uri);
+	if (mime) {
+		type = get_document_type_from_mime (mime);
+	}
+
+	if (type == G_TYPE_INVALID) {
+		g_free (mime);
+		mime = get_slow_mime_type (uri);
+		if (mime) {
+			type = get_document_type_from_mime (mime);
+		}
+	}
+
+	if (mime_type) {
+		*mime_type = mime;
+	} else {
+		g_free (mime);
+	}
+
+	return type;
+}
diff --git a/shell/ev-document-types.h b/shell/ev-document-types.h
index faf2320..e3e8fa0 100644
--- a/shell/ev-document-types.h
+++ b/shell/ev-document-types.h
@@ -25,7 +25,8 @@
 
 G_BEGIN_DECLS
 
-GType ev_document_type_lookup (const char *mime_type);
+GType ev_document_type_lookup (const char  *uri,
+			       char       **mime_type);
 
 G_END_DECLS
 
diff --git a/shell/ev-window.c b/shell/ev-window.c
index 58d30a4..2f102bf 100644
--- a/shell/ev-window.c
+++ b/shell/ev-window.c
@@ -54,7 +54,6 @@
 #include <gtk/gtk.h>
 #include <gnome.h>
 
-#include <libgnomevfs/gnome-vfs-mime-utils.h>
 #include <libgnomevfs/gnome-vfs-uri.h>
 #include <libgnomevfs/gnome-vfs-utils.h>
 #include <libgnomeprintui/gnome-print-dialog.h>
@@ -743,21 +742,15 @@ void
 ev_window_open (EvWindow *ev_window, const char *uri)
 {
 	EvDocument *document = NULL;
-	char *mime_type;
+	GType document_type;
+	char *mime_type = NULL;
 
 	g_free (ev_window->priv->uri);
 	ev_window->priv->uri = g_strdup (uri);
 
-	mime_type = gnome_vfs_get_mime_type (uri);
-
-	if (mime_type == NULL)
-		document = NULL;
-	else {
-		GType document_type = ev_document_type_lookup (mime_type);
-
-		if (document_type!=G_TYPE_INVALID) {
-			document = g_object_new (document_type, NULL);
-		}
+	document_type = ev_document_type_lookup (uri, &mime_type);
+	if (document_type != G_TYPE_INVALID) {
+		document = g_object_new (document_type, NULL);
 	}
 
 	if (document) {
@@ -782,16 +775,15 @@ static void
 ev_window_open_uri_list (EvWindow *ev_window, GList *uri_list)
 {
 	GList *list;
-	gchar *uri, *mime_type;
+	gchar *uri;
 	
 	g_return_if_fail (uri_list != NULL);
 	
 	list = uri_list;
 	while (list) {
 		uri = gnome_vfs_uri_to_string (list->data, GNOME_VFS_URI_HIDE_NONE);
-		mime_type = gnome_vfs_get_mime_type (uri);
 		
-		if (ev_document_type_lookup (mime_type)!=G_TYPE_INVALID) {
+		if (ev_document_type_lookup (uri, NULL) != G_TYPE_INVALID) {
 			if (ev_window_is_empty (EV_WINDOW (ev_window))) {
 				ev_window_open (ev_window, uri);
 				
@@ -806,7 +798,6 @@ ev_window_open_uri_list (EvWindow *ev_window, GList *uri_list)
 			}
 		}
 
-		g_free (mime_type);
 		g_free (uri);
 
 		list = g_list_next (list);