[grilo] Serialize all properties

[Juan A. Suarez Romero <jasuarez src gnome org>]

commit 5063c4e2cee62a037c6a8e50c0e88dc80784ebba
Author: Juan A. Suarez Romero <jasuarez igalia com>
Date:   Tue May 25 20:05:53 2010 +0200

    Serialize all properties
    
    This is an improvement in serialize() function.
    
    It allows to specify if serializing should include also all media properties.
    
    Thus, when unserializing it all properties can be recovered in the media, and
    not only "id" and "source".

 src/data/grl-media.c |   87 +++++++++++++++++++++++++++++++++++++++++++-------
 src/data/grl-media.h |    3 +-
 2 files changed, 76 insertions(+), 14 deletions(-)
---
diff --git a/src/data/grl-media.c b/src/data/grl-media.c
index 662e36b..183a538 100644
--- a/src/data/grl-media.c
+++ b/src/data/grl-media.c
@@ -32,11 +32,13 @@
  */
 
 #include "grl-media.h"
+#include <grilo.h>
 
 #undef G_LOG_DOMAIN
 #define G_LOG_DOMAIN "grl-media"
 
 #define RATING_MAX  5.00
+#define SERIAL_STRING_ALLOC 100
 
 static void grl_media_dispose (GObject *object);
 static void grl_media_finalize (GObject *object);
@@ -105,16 +107,20 @@ grl_media_set_rating (GrlMedia *media, gfloat rating, gfloat max)
 }
 
 gchar *
-grl_media_serialize (GrlMedia *media)
+grl_media_serialize (GrlMedia *media,
+                     gboolean full)
 {
+  GList *key;
+  GList *keylist;
   GRegex *type_regex;
+  GString *serial;
+  GrlKeyID grlkey;
+  GrlPluginRegistry *registry;
+  const GValue *value;
   const gchar *id;
   const gchar *source;
   const gchar *type_name;
-  gchar *escaped_id;
-  gchar *escaped_source;
   gchar *protocol;
-  gchar *serial;
 
   g_return_val_if_fail (GRL_IS_MEDIA (media), NULL);
   g_return_val_if_fail ((id = grl_media_get_id (media)), NULL);
@@ -128,15 +134,72 @@ grl_media_serialize (GrlMedia *media)
   g_regex_unref (type_regex);
 
   /* Build serial string with escaped components */
-  escaped_id = g_uri_escape_string (id, NULL, TRUE);
-  escaped_source = g_uri_escape_string (source, NULL, TRUE);
+  serial = g_string_sized_new (SERIAL_STRING_ALLOC);
+  g_string_assign (serial, protocol);
+  g_string_append (serial, "://");
+  g_string_append_uri_escaped (serial, source, NULL, TRUE);
+  g_string_append_c (serial, '/');
+  g_string_append_uri_escaped (serial, id, NULL, TRUE);
 
-  serial = g_strconcat (protocol, "://", escaped_source, "/", escaped_id, NULL);
+  g_free (protocol);
 
-  g_free (escaped_id);
-  g_free (escaped_source);
+  /* Include all properties */
+  if (full) {
+    g_string_append_c (serial, '?');
+    registry = grl_plugin_registry_get_instance ();
+
+    keylist = grl_metadata_key_list_new (GRL_METADATA_KEY_TITLE,
+                                         GRL_METADATA_KEY_URL,
+                                         GRL_METADATA_KEY_ARTIST,
+                                         GRL_METADATA_KEY_ALBUM,
+                                         GRL_METADATA_KEY_GENRE,
+                                         GRL_METADATA_KEY_THUMBNAIL,
+                                         GRL_METADATA_KEY_AUTHOR,
+                                         GRL_METADATA_KEY_DESCRIPTION,
+                                         GRL_METADATA_KEY_LYRICS,
+                                         GRL_METADATA_KEY_SITE,
+                                         GRL_METADATA_KEY_DATE,
+                                         GRL_METADATA_KEY_MIME,
+                                         GRL_METADATA_KEY_LAST_PLAYED,
+                                         GRL_METADATA_KEY_DURATION,
+                                         GRL_METADATA_KEY_CHILDCOUNT,
+                                         GRL_METADATA_KEY_WIDTH,
+                                         GRL_METADATA_KEY_HEIGHT,
+                                         GRL_METADATA_KEY_BITRATE,
+                                         GRL_METADATA_KEY_PLAY_COUNT,
+                                         GRL_METADATA_KEY_LAST_POSITION,
+                                         GRL_METADATA_KEY_FRAMERATE,
+                                         GRL_METADATA_KEY_RATING,
+                                         NULL);
+    for (key = keylist; key; key = g_list_next (key)) {
+      grlkey = POINTER_TO_GRLKEYID (key->data);
+      value = grl_data_get (GRL_DATA (media), grlkey);
+      if (value) {
+        g_string_append_printf (serial,
+                                "%s=",
+                                GRL_METADATA_KEY_GET_NAME (grl_plugin_registry_lookup_metadata_key (registry,
+                                                                                                    grlkey)));
+        if (G_VALUE_HOLDS_STRING (value)) {
+          g_string_append_uri_escaped (serial,
+                                       g_value_get_string (value),
+                                       NULL,
+                                       TRUE);
+        } else if (G_VALUE_HOLDS_INT (value)) {
+          g_string_append_printf (serial, "%d", g_value_get_int (value));
+        } else if (G_VALUE_HOLDS_FLOAT (value)) {
+          g_string_append_printf (serial, "%f", g_value_get_float (value));
+        }
+        g_string_append_c (serial, '&');
+      }
+    }
+
+    g_list_free (keylist);
+
+    /* Remove trailing ?/& character */
+    g_string_erase (serial, serial->len - 1, -1);
+  }
 
-  return serial;
+  return g_string_free (serial, FALSE);
 }
 
 GrlMedia *
diff --git a/src/data/grl-media.h b/src/data/grl-media.h
index f83d02f..5c33085 100644
--- a/src/data/grl-media.h
+++ b/src/data/grl-media.h
@@ -31,7 +31,6 @@
 
 #include <grl-data.h>
 
-
 G_BEGIN_DECLS
 
 #define GRL_TYPE_MEDIA                          \
@@ -387,7 +386,7 @@ GType grl_media_get_type (void) G_GNUC_CONST;
 
 GrlMedia *grl_media_new (void);
 
-gchar *grl_media_serialize (GrlMedia *media);
+gchar *grl_media_serialize (GrlMedia *media, gboolean full);
 
 GrlMedia *grl_media_unserialize (const gchar *serial);