tagtree: defer context menu disk access

When the database isn't loaded into RAM,
or the "quick" load setting is enabled,
filenames for tracks must be retrieved
from disk.

With a single track selected, this
can cause a delay before its context
menu is displayed.

Since filenames are only needed after the
user has selected something from the menu,
it makes sense to defer retrieval until
disk access becomes inevitable.

Change-Id: I72b57eff3102b50f3e19441119e20aad903b1f2b

apps/onplay.c

@@ -64,6 +64,9 @@
 #include "pathfuncs.h"
 #include "shortcuts.h"
 #include "misc.h"
+#ifdef HAVE_DISK_STORAGE
+#include "storage.h"
+#endif
 
 static int onplay_result = ONPLAY_OK;
 static bool in_queue_submenu = false;
@@ -267,6 +270,11 @@ static void op_playlist_insert_selected(int position, bool queue)
         ctx_current_playlist_insert(position, queue, false);
         return;
     }
+    else if (selected_file.context == CONTEXT_ID3DB)
+    {
+        tagtree_current_playlist_insert(position, queue);
+        return;
+    }
 #endif
     if ((selected_file.attr & FILE_ATTR_MASK) == FILE_ATTR_AUDIO)
         playlist_insert_track(NULL, selected_file.path, position, queue, true);
@@ -274,13 +282,6 @@ static void op_playlist_insert_selected(int position, bool queue)
         playlist_insert_playlist(NULL, selected_file.path, position, queue);
     else if (selected_file.attr & ATTR_DIRECTORY)
     {
-#ifdef HAVE_TAGCACHE
-        if (selected_file.context == CONTEXT_ID3DB)
-        {
-            tagtree_current_playlist_insert(position, queue);
-            return;
-        }
-#endif
         bool recurse = (global_settings.recursive_dir_insert == RECURSE_ON);
         if (global_settings.recursive_dir_insert == RECURSE_ASK)
         {
@@ -839,16 +840,33 @@ static bool list_viewers(void)
 #ifdef HAVE_TAGCACHE
 static bool prepare_database_sel(void *param)
 {
-    if (selected_file.context == CONTEXT_ID3DB &&
-        (selected_file.attr & FILE_ATTR_MASK) != FILE_ATTR_AUDIO)
+    if (selected_file.context == CONTEXT_ID3DB)
     {
-        if (!strcmp(param, "properties"))
+        if (param && !strcmp(param, "properties")
+            && (selected_file.attr & FILE_ATTR_MASK) != FILE_ATTR_AUDIO)
+        {
             strmemccpy(selected_file.buf, MAKE_ACT_STR(ACTIVITY_DATABASEBROWSER),
                        sizeof(selected_file.buf));
-        else if (!tagtree_get_subentry_filename(selected_file.buf, MAX_PATH))
+        }
+        else
         {
-            onplay_result = ONPLAY_RELOAD_DIR;
-            return false;
+            /* If database is not loaded into RAM, or tagcache_ram is
+               set to "quick", filename needs to be retrieved from disk! */
+#ifdef HAVE_DISK_STORAGE
+            if ((selected_file.attr & FILE_ATTR_MASK) == FILE_ATTR_AUDIO
+                && !storage_disk_is_active()
+#ifdef HAVE_TC_RAMCACHE
+                && (global_settings.tagcache_ram != TAGCACHE_RAM_ON
+                    || !tagcache_is_in_ram())
+#endif
+            )
+                splash(0, ID2P(LANG_WAIT));
+#endif
+             if (!tagtree_get_subentry_filename(selected_file.buf, MAX_PATH))
+            {
+                onplay_result = ONPLAY_RELOAD_DIR;
+                return false;
+            }
         }
 
         selected_file.path = selected_file.buf;
@@ -1173,6 +1191,9 @@ static bool hotkey_delete_item(void)
     if (selected_file.context == CONTEXT_ID3DB &&
         (selected_file.attr & FILE_ATTR_MASK) != FILE_ATTR_AUDIO)
         return false;
+
+     if (!prepare_database_sel(NULL))
+        return false;
 #endif
 
     return clipboard_delete_selected_fileobject();
@@ -1186,6 +1207,10 @@ static bool hotkey_open_with(void)
 #ifdef HAVE_MULTIVOLUME
     if (selected_file.attr & ATTR_VOLUME)
         return false;
+#endif
+#ifdef HAVE_TAGCACHE
+    if (!prepare_database_sel(NULL))
+        return false;
 #endif
     return list_viewers();
 }
@@ -1341,8 +1366,7 @@ int onplay(char* file, int attr, int from_context, bool hotkey, int customaction
     selected_file_set(from_context, NULL, attr);
 
 #ifdef HAVE_TAGCACHE
-    if (from_context == CONTEXT_ID3DB &&
-        (attr & FILE_ATTR_MASK) != FILE_ATTR_AUDIO)
+    if (from_context == CONTEXT_ID3DB)
     {
         ctx_add_to_playlist = tagtree_add_to_playlist;
         if (file != NULL)

apps/playlist_catalog.c

@@ -286,8 +286,8 @@ static int add_track_to_playlist(char* filename, void* context)
 
 /* Add "sel" file into specified "playlist".  How to insert depends on type
    of file */
-static int add_to_playlist(const char* playlist, bool new_playlist,
-                           const char* sel, int sel_attr)
+int catalog_insert_into(const char* playlist, bool new_playlist,
+                        const char* sel, int sel_attr)
 {
     int fd;
     int result = -1;
@@ -514,7 +514,7 @@ bool catalog_add_to_a_playlist(const char* sel, int sel_attr,
         result = ctx_add_to_playlist(playlist, new_playlist);
     }
     else
-        result = add_to_playlist(playlist, new_playlist, sel, sel_attr);
+        result = catalog_insert_into(playlist, new_playlist, sel, sel_attr);
 
     return (result == 0);
 }

apps/playlist_catalog.h

@@ -36,6 +36,9 @@ bool catalog_view_playlists(void);
 bool catalog_pick_new_playlist_name(char *pl_name, size_t buf_size,
                                     const char* curr_pl_name);
 
+int catalog_insert_into(const char* playlist, bool new_playlist,
+                        const char* sel, int sel_attr);
+
 /*
  * Add something to a playlist (new or select from list of playlists in
  * catalog).

apps/tagtree.c

@@ -59,6 +59,7 @@
 #include "onplay.h"
 #include "plugin.h"
 #include "language.h"
+#include "playlist_catalog.h"
 
 #define str_or_empty(x) (x ? x : "(NULL)")
 
@@ -2544,7 +2545,10 @@ static bool tagtree_insert_selection(int position, bool queue,
         if (tagtree_get_filename(tc, buf, sizeof buf) < 0)
             return false;
 
-        playlist_insert_track(NULL, buf, position, queue, true);
+        if (!playlist)
+            playlist_insert_track(NULL, buf, position, queue, true);
+        else
+            catalog_insert_into(playlist, new_playlist, buf, FILE_ATTR_AUDIO);
 
         return true;
     }

apps/tree.c

@@ -919,7 +919,10 @@ static int dirbrowse(void)
                         if (tagtree_get_attr(&tc) == FILE_ATTR_AUDIO)
                         {
                             attr = FILE_ATTR_AUDIO;
-                            tagtree_get_filename(&tc, buf, sizeof(buf));
+
+                            /* Look up the filename only once it is needed, so we
+                               don't have to wait for the disk to wake up here. */
+                            buf[0] = '\0';
                         }
                         else
                         {