int fb_ls_ext(const char *ext){
int CurrentNavId = -1;
// if no navigator available, return an error
if ((CurrentNavId = fsaccess_alloc_nav_id()) < 0) return ERROR_NO_NAV_ID;
// select the navigator
nav_select( CurrentNavId );
// navigate to folder
if(nav_setcwd((FS_STRING)currentDirectory, FALSE, FALSE) == FALSE){
fsaccess_free_nav_id(CurrentNavId);
return ERROR_NOT_A_DIRECTORY;
}
if(nav_filelist_first(FS_FILE)==FALSE){
fsaccess_free_nav_id(CurrentNavId);
return ERROR_UNKNOWN;
}
char filename[255];
if(nav_file_getname(filename,sizeof(filename))==FALSE){
fsaccess_free_nav_id(CurrentNavId);
return ERROR_UNKNOWN;
}
seprintf("Contents of folder %s:\n\n",currentDirectory);
nav_filelist_single_enable( FS_DIR );
int filecount = nav_filelist_nb(FS_DIR);
short a;
for(a=0; a < filecount; a++){
if(nav_filelist_goto(a)==FALSE)return ERROR_UNKNOWN;
char filename[255];
if(nav_file_getname(filename,sizeof(filename))==FALSE){
fsaccess_free_nav_id(CurrentNavId);
return ERROR_UNKNOWN;
}
seprintf("%d: %s\n",a,filename);
}
nav_filelist_single_enable( FS_FILE );
filecount = nav_filelist_nb(FS_FILE);
for(a=0; a < filecount; a++){
if(nav_filelist_goto(a)==FALSE)return ERROR_UNKNOWN;
if(!nav_file_checkext(ext))continue;
char filename[255];
if(nav_file_getname(filename,sizeof(filename))==FALSE){
fsaccess_free_nav_id(CurrentNavId);
return ERROR_UNKNOWN;
}
seprintf("%d: %s\n",a,filename);
}
fsaccess_free_nav_id(CurrentNavId);
return 0;
}
int fb_iterator_init(Bool type){
file_or_dir = type;
fb_iterator_reset();
// if no navigator available, return an error
if ((iterator_navid = fsaccess_alloc_nav_id()) < 0) return ERROR_NO_NAV_ID;
fsaccess_take_mutex();
// select the navigator
nav_select( iterator_navid );
// navigate to folder
if(nav_setcwd((FS_STRING)currentDirectory, FALSE, FALSE) == FALSE){
fsaccess_free_nav_id(iterator_navid);
return ERROR_NOT_A_DIRECTORY;
}
//select top of list
if(nav_filelist_first(type)==FALSE){
fsaccess_free_nav_id(iterator_navid);
return ERROR_UNKNOWN;
}
nav_filelist_single_enable( type );
filecount = nav_filelist_nb(file_or_dir);
return 0;
}
//! This function computes the number of files and/or directories in filtered file list
//! This function is not blocking. It will return after \<retry\> iteration if the result
//! is not yet computed.
//!
//! @param fl_type FL_ALL To check all types (files and directories). <br>
//! FL_DIR To check the directory presence. <br>
//! FL_FILE To check the file presence.
//!
//! @param sz_filterext Extension filter (ASCII format, e.g.: "txt" or "txt,d*,wk" ). <br>
//! If this argument in NULL, then it uses the default filter used by the filterlist. <br>
//! This argument is also ignored for b_type == FS_DIR.
//! @param p_total Pointer to the result which will be updated by the function (added).
//! Initialization shall be done before entering into this function.
//! @param retry Number of files seen before leaving the function. 0 means that the
//! function is blocking until the result is known.
//!
//! @return number of files and/or directories present in filtered file list.
//!
bool nav_filterlist_nb_ex( fl_type_t fl_type, const FS_STRING sz_filterext, uint16_t* p_total, uint8_t retry )
{
static uint16_t u16_save_position;
bool b_is_dir;
// save current position
if( *p_total==(uint16_t) -1 )
{
u16_save_position = fs_g_nav.u16_pos_filterlist;
// Reset position
if ( !nav_filterlist_reset())
return true;
if (fl_type == FL_DIR)
nav_filelist_single_enable(FS_DIR);
else if (fl_type == FL_FILE)
nav_filelist_single_enable(FS_FILE);
*p_total = 0;
}
// Scan all
while( nav_filelist_set( 0, FS_FIND_NEXT ) )
{
b_is_dir = nav_file_isdir();
// Check if its a file for FL_FILE mode
if (fl_type == FL_FILE && b_is_dir)
{
if (!update_counter(&retry))
return false;
continue;
}
// Check if its a directory for FL_DIR mode
if (fl_type == FL_DIR && !b_is_dir)
{
if (!update_counter(&retry))
return false;
continue;
}
// If the selection is on a file
if (!b_is_dir)
{
// Check the extension of the file
if (!((sz_filterext)?nav_file_checkext(sz_filterext):nav_file_checkext(fs_g_nav.sz_filterext)))
if (!update_counter(&retry))
return false;
}
(*p_total)++;
if (!update_counter(&retry))
return false;
}
nav_filelist_single_disable();
// Restore previous position
if ( u16_save_position != FS_NO_SEL )
{
nav_filterlist_reset();
}else{
// After operation, there are a file selected
nav_filterlist_goto( u16_save_position );
}
return true;
}
