[epiphany] snapshot-service: Add a memory cache of snapshots paths saved

[Carlos Garcia Campos <carlosgc src gnome org>]

commit d6a7f9e214a3e60931367bdcbc010bdb546f41f1
Author: Carlos Garcia Campos <cgarcia igalia com>
Date:   Fri Feb 28 12:16:09 2014 +0100

    snapshot-service: Add a memory cache of snapshots paths saved
    
    And add a method to query that cache.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=725393

 lib/ephy-snapshot-service.c |   17 ++++++++++++++++-
 lib/ephy-snapshot-service.h |    3 +++
 2 files changed, 19 insertions(+), 1 deletions(-)
---
diff --git a/lib/ephy-snapshot-service.c b/lib/ephy-snapshot-service.c
index 3fb7bbe..5c5f2bb 100644
--- a/lib/ephy-snapshot-service.c
+++ b/lib/ephy-snapshot-service.c
@@ -34,6 +34,7 @@
 struct _EphySnapshotServicePrivate
 {
   GnomeDesktopThumbnailFactory *factory;
+  GHashTable *cache;
 };
 
 G_DEFINE_TYPE (EphySnapshotService, ephy_snapshot_service, G_TYPE_OBJECT)
@@ -50,9 +51,11 @@ ephy_snapshot_service_class_init (EphySnapshotServiceClass *klass)
 static void
 ephy_snapshot_service_init (EphySnapshotService *self)
 {
-
   self->priv = EPHY_SNAPSHOT_SERVICE_GET_PRIVATE (self);
   self->priv->factory = gnome_desktop_thumbnail_factory_new (GNOME_DESKTOP_THUMBNAIL_SIZE_LARGE);
+  self->priv->cache = g_hash_table_new_full (g_str_hash, g_str_equal,
+                                             (GDestroyNotify)g_free,
+                                             (GDestroyNotify)g_free);
 }
 
 typedef struct {
@@ -105,6 +108,8 @@ get_snapshot_for_url_thread (GSimpleAsyncResult *result,
     return;
   }
 
+  g_hash_table_insert (service->priv->cache, g_strdup (data->url), g_strdup (data->path));
+
   data->snapshot = gdk_pixbuf_new_from_file (data->path, &error);
   if (data->snapshot == NULL) {
     g_simple_async_result_set_error (result,
@@ -317,6 +322,7 @@ save_snapshot_thread (GSimpleAsyncResult *result,
                                                   data->url,
                                                   data->mtime);
   data->path = gnome_desktop_thumbnail_path_for_uri (data->url, GNOME_DESKTOP_THUMBNAIL_SIZE_LARGE);
+  g_hash_table_insert (service->priv->cache, g_strdup (data->url), g_strdup (data->path));
 }
 
 GQuark
@@ -638,3 +644,12 @@ ephy_snapshot_service_prepare_snapshot (cairo_surface_t *surface,
 
   return scaled;
 }
+
+const char *
+ephy_snapshot_service_lookup_snapshot_path (EphySnapshotService *service,
+                                            const char *url)
+{
+  g_return_val_if_fail (EPHY_IS_SNAPSHOT_SERVICE (service), NULL);
+
+  return g_hash_table_lookup (service->priv->cache, url);
+}
diff --git a/lib/ephy-snapshot-service.h b/lib/ephy-snapshot-service.h
index c21282b..4971803 100644
--- a/lib/ephy-snapshot-service.h
+++ b/lib/ephy-snapshot-service.h
@@ -108,6 +108,9 @@ char                *ephy_snapshot_service_save_snapshot_finish        (EphySnap
 GdkPixbuf           *ephy_snapshot_service_prepare_snapshot            (cairo_surface_t *surface,
                                                                         cairo_surface_t *favicon);
 
+const char          *ephy_snapshot_service_lookup_snapshot_path        (EphySnapshotService *service,
+                                                                        const char *url);
+
 G_END_DECLS
 
 #endif /* _EPHY_SNAPSHOT_SERVICE_H */