Plugins tree browsing restriction

Don't leave the subtree and show only appropriate files.

Author: poretsky

apps/filetree.c

@@ -355,6 +355,10 @@ int ft_load(struct tree_context* c, const char* tempdir)
              file_attr != FILE_ATTR_M3U) ||
             ((*c->dirfilter == SHOW_MUSIC && file_attr != FILE_ATTR_AUDIO) &&
              file_attr != FILE_ATTR_M3U) ||
+            (*c->dirfilter == SHOW_PLUGINS_TREE &&
+             (dptr->attr & FILE_ATTR_MASK) != FILE_ATTR_ROCK &&
+             (dptr->attr & FILE_ATTR_MASK) != FILE_ATTR_LUA &&
+             (dptr->attr & FILE_ATTR_MASK) != FILE_ATTR_OPX) ||
             (*c->dirfilter == SHOW_SUPPORTED && !filetype_supported(dptr->attr)))) ||
             (*c->dirfilter == SHOW_WPS && file_attr != FILE_ATTR_WPS) ||
             (*c->dirfilter == SHOW_FONT && file_attr != FILE_ATTR_FONT) ||

apps/open_plugin.c

@@ -387,7 +387,7 @@ void open_plugin_browse(const char *key)
         strcpy(op_entry->path, PLUGIN_DIR"/");
 
     struct browse_context browse = {
-        .dirfilter = SHOW_ALL,
+        .dirfilter = SHOW_PLUGINS_TREE,
         .flags = BROWSE_SELECTONLY | BROWSE_NO_CONTEXT_MENU | BROWSE_DIRFILTER,
         .title = str(LANG_OPEN_PLUGIN),
         .icon = Icon_Plugin,

apps/settings.h

@@ -147,7 +147,7 @@ enum
 enum { SHOW_ALL, SHOW_SUPPORTED, SHOW_MUSIC, SHOW_PLAYLIST, SHOW_ID3DB,
        NUM_FILTER_MODES,
        SHOW_WPS, SHOW_RWPS, SHOW_FMS, SHOW_RFMS, SHOW_SBS, SHOW_RSBS, SHOW_FMR, SHOW_CFG,
-       SHOW_LNG, SHOW_MOD, SHOW_FONT, SHOW_PLUGINS, SHOW_M3U};
+       SHOW_LNG, SHOW_MOD, SHOW_FONT, SHOW_PLUGINS, SHOW_M3U, SHOW_PLUGINS_TREE};
 
 /* file and dir sort options */
 enum { SORT_ALPHA, SORT_DATE, SORT_DATE_REVERSED, SORT_TYPE, /* available as settings */

apps/tree.c

@@ -987,7 +987,7 @@ int rockbox_browse(struct browse_context *browse)
     tc.sort_dir = global_settings.sort_dir;
 
     reload_dir = true;
-    if (*tc.dirfilter >= NUM_FILTER_MODES)
+    if (*tc.dirfilter >= NUM_FILTER_MODES && *tc.dirfilter != SHOW_PLUGINS_TREE)
     {
         int last_context;
         /* don't reset if its the same browse already loaded */
@@ -1018,11 +1018,14 @@ int rockbox_browse(struct browse_context *browse)
     }
     else
     {
-        if (dirfilter != SHOW_ID3DB && (browse->flags & BROWSE_DIRFILTER) == 0)
-            tc.dirfilter = &global_settings.dirfilter;
         tc.browse = browse;
         strmemccpy(current, browse->root, MAX_PATH);
         set_current_file(current);
+        if (dirfilter == SHOW_PLUGINS_TREE)
+            tc.dirlevel = 0; 
+        else if (dirfilter != SHOW_ID3DB)
+            tc.dirfilter = &global_settings.dirfilter;
+
         if (browse->flags&BROWSE_RUNFILE)
             ret_val = ft_enter(&tc);
         else