[PATCH 09/14] tracker: add category support

[llandwerlin gmail com]

From: Lionel Landwerlin <lionel g landwerlin linux intel com>

Signed-off-by: Lionel Landwerlin <lionel g landwerlin linux intel com>
---
 src/tracker/grl-tracker.c |   73 ++++++++++++++++++++++++++++++++++++--------
 1 files changed, 59 insertions(+), 14 deletions(-)

diff --git a/src/tracker/grl-tracker.c b/src/tracker/grl-tracker.c
index aff7efd..f54f16e 100644
--- a/src/tracker/grl-tracker.c
+++ b/src/tracker/grl-tracker.c
@@ -106,6 +106,15 @@ enum {
   ORDER BY ASC(nfo:fileName(?urn))                                    \
   OFFSET %i LIMIT %i"
 
+#define TRACKER_BROWSE_CATEGORY_REQUEST "                             \
+  SELECT %s                                                           \
+  WHERE {                                                             \
+    { ?urn a %s }                                                     \
+    ?urn tracker:available ?tr                                        \
+    }                                                                 \
+  ORDER BY DESC(nfo:fileLastModified(?urn))                            \
+  OFFSET %i LIMIT %i"
+
 #define TRACKER_SEARCH_REQUEST "                                    \
   SELECT %s                                                         \
   WHERE {                                                           \
@@ -134,6 +143,7 @@ typedef enum {
 typedef enum {
   TRACKER_BROWSING_MODE_FLAT,
   TRACKER_BROWSING_MODE_DIRECTORY,
+  TRACKER_BROWSING_MODE_CATEGORY,
   TRACKER_BROWSING_MODE_INVALID,
 } tracker_browsing_mode_t;
 
@@ -314,7 +324,7 @@ grl_tracker_source_class_init (GrlTrackerSourceClass * klass)
                                    PROP_BROWSING_MODE,
                                    g_param_spec_string ("browsing-mode",
                                                         "browsing-mode",
-                                                        "Method used to browse a tracker source (flat,directory)",
+                                                        "Method used to browse a tracker source (category,directory,flat)",
                                                         "directory",
                                                         G_PARAM_READABLE
                                                         | G_PARAM_WRITABLE
@@ -330,7 +340,7 @@ grl_tracker_source_init (GrlTrackerSource *source)
 {
   source->priv = GRL_TRACKER_SOURCE_GET_PRIVATE (source);
 
-  source->priv->browsing_mode = TRACKER_BROWSING_MODE_DIRECTORY;
+  source->priv->browsing_mode = TRACKER_BROWSING_MODE_CATEGORY;
 }
 
 static void
@@ -398,14 +408,13 @@ tracker_browsing_mode_to_str (tracker_browsing_mode_t mode)
   switch (mode) {
   case TRACKER_BROWSING_MODE_FLAT:
     return "flat";
-
   case TRACKER_BROWSING_MODE_DIRECTORY:
     return "directory";
-
+  case TRACKER_BROWSING_MODE_CATEGORY:
+    return "category";
   default:
     return "invalid";
   }
-
   return "invalid";
 }
 
@@ -418,6 +427,8 @@ tracker_browsing_mode_from_str (const gchar *str)
     return TRACKER_BROWSING_MODE_FLAT;
   if (!strcmp (str, "directory"))
     return TRACKER_BROWSING_MODE_DIRECTORY;
+  if (!strcmp (str, "category"))
+    return TRACKER_BROWSING_MODE_CATEGORY;
   return TRACKER_BROWSING_MODE_INVALID;
 }
 
@@ -1018,6 +1029,7 @@ grl_tracker_source_browse (GrlMediaSource           *source,
   gchar                *sparql_final;
   GError               *error = NULL;
   struct OperationSpec *os;
+  GrlMedia             *media;
 
   GRL_DEBUG ("grl_tracker_source_browse");
 
@@ -1028,20 +1040,53 @@ grl_tracker_source_browse (GrlMediaSource           *source,
     goto send_error;
   }
 
-  sparql_select = get_select_string (source, bs->keys);
-  if (priv->browsing_mode == TRACKER_BROWSING_MODE_FLAT) {
-    sparql_final = g_strdup_printf (TRACKER_BROWSE_FLAT_REQUEST,
-                                    sparql_select, bs->skip, bs->count);
+  if ((priv->browsing_mode == TRACKER_BROWSING_MODE_CATEGORY) &&
+      (bs->container == NULL || grl_media_get_id (bs->container) == NULL)) {
+    /* Hardcoded categories */
+    media = grl_media_box_new ();
+    grl_media_set_title (media, "Music");
+    grl_media_set_id (media, "nmm:MusicPiece");
+    bs->callback (bs->source, bs->browse_id, media, 2, bs->user_data, NULL);
+
+    media = grl_media_box_new ();
+    grl_media_set_title (media, "Photo");
+    grl_media_set_id (media, "nmm:Photo");
+    bs->callback (bs->source, bs->browse_id, media, 1, bs->user_data, NULL);
+
+    media = grl_media_box_new ();
+    grl_media_set_title (media, "Video");
+    grl_media_set_id (media, "nmm:Video");
+    bs->callback (bs->source, bs->browse_id, media, 0, bs->user_data, NULL);
+    return;
   } else {
-    if (bs->container == NULL ||
-        grl_media_get_id (bs->container) == NULL) {
-      sparql_final = g_strdup_printf (TRACKER_BROWSE_DIRECTORY_ROOT_REQUEST,
+    sparql_select = get_select_string (source, bs->keys);
+    switch (priv->browsing_mode) {
+    case TRACKER_BROWSING_MODE_FLAT:
+      sparql_final = g_strdup_printf (TRACKER_BROWSE_FLAT_REQUEST,
                                       sparql_select, bs->skip, bs->count);
-    } else {
-      sparql_final = g_strdup_printf (TRACKER_BROWSE_DIRECTORY_CONT_REQUEST,
+      break;
+
+    case TRACKER_BROWSING_MODE_INVALID:
+    case TRACKER_BROWSING_MODE_DIRECTORY:
+    default:
+      if (bs->container == NULL ||
+          grl_media_get_id (bs->container) == NULL) {
+        sparql_final = g_strdup_printf (TRACKER_BROWSE_DIRECTORY_ROOT_REQUEST,
+                                        sparql_select, bs->skip, bs->count);
+      } else {
+        sparql_final = g_strdup_printf (TRACKER_BROWSE_DIRECTORY_CONT_REQUEST,
+                                        sparql_select,
+                                        grl_media_get_id (bs->container),
+                                        bs->skip, bs->count);
+      }
+      break;
+
+    case TRACKER_BROWSING_MODE_CATEGORY:
+      sparql_final = g_strdup_printf (TRACKER_BROWSE_CATEGORY_REQUEST,
                                       sparql_select,
                                       grl_media_get_id (bs->container),
                                       bs->skip, bs->count);
+      break;
     }
   }
 
-- 
1.7.2.3