rockbox/apps/plugins/lua_scripts/filebrowse.lua
William Wilgus 0f23cadbca lua -- add sort by name, size, date to filebrowse include
I had previously added the fuctionality to luadir but I didn't update
the examples

also breaks out the file_browser function to be a bit more accessible

Change-Id: I14067256b9d76a757f732840cbee1cf84d775b1b
2020-09-25 23:07:30 -04:00

241 lines
7.9 KiB
Lua
Executable file

--[[
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2017 William Wilgus
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
]]
if ... == nil then rb.splash(rb.HZ * 3, "use 'require'") end
require("printtable")
local _lcd = require("lcd")
local _timer = require("timer")
--------------------------------------------------------------------------------
--[[ returns a sorted tables of directories and (another) of files
-- path is the starting path; norecurse == true.. only that path will be searched
-- findfile & finddir are definable search functions
-- if not defined all files/dirs are returned if false is passed.. none
-- or you can provide your own function see below..
-- f_t and d_t allow you to pass your own tables for re-use but isn't necessary
]]
local function get_files(path, norecurse, finddir, findfile, sort_by, f_t, d_t)
local quit = false
local sort_by_function -- forward declaration
local filepath_function -- forward declaration
local files = f_t or {}
local dirs = d_t or {}
local function f_filedir(name)
--default find function
-- example: return name:find(".mp3", 1, true) ~= nil
if name:len() <= 2 and (name == "." or name == "..") then
return false
end
return true
end
local function d_filedir(name)
--default discard function
return false
end
if finddir == nil then
finddir = f_filedir
elseif type(finddir) ~= "function" then
finddir = d_filedir
end
if findfile == nil then
findfile = f_filedir
elseif type(findfile) ~= "function" then
findfile = d_filedir
end
local function _get_files(path, cancelbtn)
local sep = ""
local filepath
local finfo_t
if string.sub(path, - 1) ~= "/" then sep = "/" end
for fname, isdir, finfo_t in luadir.dir(path, true) do
if isdir and finddir(fname) then
table.insert(dirs, path .. sep ..fname)
elseif not isdir and findfile(fname) then
filepath = filepath_function(path, sep, fname, finfo_t.attribute, finfo_t.size, finfo_t.time)
table.insert(files, filepath)
end
if rb.get_plugin_action(0) == cancelbtn then
return true
end
end
end
local function cmp_alphanum (op1, op2)
local type1= type(op1)
local type2 = type(op2)
if type1 ~= type2 then
return type1 < type2
else
if type1 == "string" then
op1 = op1:upper()
op2 = op2:upper()
return sort_by_function(op1, op2)
end
return op1 < op2
end
end
_lcd:splashf(1, "Searching for Files")
if sort_by == "name" then
sort_by_function = function(s1, s2) return s1 < s2 end
filepath_function = function(path, sep, fname, fattrib, fsize, ftime)
return string.format("%s%s%s;", path, sep, fname)
end
elseif sort_by == "size" then
filepath_function = function(path, sep, fname, fattrib, fsize, ftime)
return string.format("%s%s%s; At:%d, Sz:%d, Tm:%d", path, sep, fname, fattrib, fsize, ftime)
end
sort_by_function = function(s1, s2)
local v1, v2
v1 = string.match(s1, "SZ:(%d+)")
v2 = string.match(s2, "SZ:(%d+)")
if v1 or v2 then
return tonumber(v1 or 0) < tonumber(v2 or 0)
end
return s1 < s2
end
elseif sort_by == "date" then
filepath_function = function(path, sep, fname, fattrib, fsize, ftime)
return string.format("%s%s%s; At:%d, Sz:%d, Tm:%d", path, sep, fname, fattrib, fsize, ftime)
end
sort_by_function = function(s1, s2)
local v1, v2
v1 = string.match(s1, "TM:(%d+)")
v2 = string.match(s2, "TM:(%d+)")
if v1 or v2 then
return tonumber(v1 or 0) < tonumber(v2 or 0)
end
return s1 < s2
end
end
table.insert(dirs, path) -- root
for key,value in pairs(dirs) do
--luadir.dir may error out so we need to do the call protected
-- _get_files(value, CANCEL_BUTTON)
_, quit = pcall(_get_files, value, CANCEL_BUTTON)
if quit == true or norecurse then
break;
end
end
table.sort(files, cmp_alphanum)
table.sort(dirs, cmp_alphanum)
return dirs, files
end -- get_files
--------------------------------------------------------------------------------
-- uses print_table and get_files to display simple file browser
-- sort_by "date" "name" "size"
-- descending true/false
function file_choose(dir, title, sort_by, descending)
local dstr, hstr = ""
if not title then
dstr = "%d items found in %0d.%02d seconds"
else
hstr = title
end
if not sort_by then sort_by = "name" end
sort_by = sort_by:lower()
-- returns whole seconds and remainder
local function tick2seconds(ticks)
local secs = (ticks / rb.HZ)
local csecs = (ticks - (secs * rb.HZ))
return secs, csecs
end
local norecurse = true
local f_finddir = nil -- function to match directories; nil all, false none
local f_findfile = nil -- function to match files; nil all, false none
local p_settings = {wrap = true, hasheader = true}
local timer
local files = {}
local dirs = {}
local item = 1
_lcd:clear()
while item > 0 do
if not title then
timer = _timer()
end
dirs, files = get_files(dir, norecurse, f_finddir, f_findfile, sort_by, dirs, files)
local parentdir = dirs[1]
for i = 1, #dirs do
dirs[i] = "\t" .. dirs[i]
end
if not descending then
for i = 1, #files do
-- only store file name .. strip attributes from end
table.insert(dirs, "\t" .. string.match(files[i], "[^;]+") or "?")
end
else
for i = #files, 1, -1 do
-- only store file name .. strip attributes from end
table.insert(dirs, "\t" .. string.match(files[i], "[^;]+") or "?")
end
end
for i=1, #files do files[i] = nil end -- empty table for reuse
if not title then
hstr = string.format(dstr, #dirs - 1, tick2seconds(timer:stop()))
end
table.insert(dirs, 1, hstr)
item = print_table(dirs, #dirs, p_settings)
-- If item was selected follow directory or return filename
if item > 0 then
dir = string.gsub(dirs[item], "%c+","")
if not rb.dir_exists("/" .. dir) then
return dir
end
end
if dir == parentdir then
dir = dir:sub(1, dir:match(".*()/") - 1)
if dir == "" then dir = "/" end
end
for i=1, #dirs do dirs[i] = nil end -- empty table for reuse
end
end -- file_choose
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