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class Directory
def initialize(path)
@path = path
@pos = 0
refresh
end
attr_reader(:path, :files)
attr_accessor(:pos)
def refresh()
@files = Dir::glob(File::join(path, '*')).sort!
end
def self.current()
Fm.current_dir()
end
end
module Fm
def self.initialize
@key = ''
@dirs = {}
@current_dir = ''
enter_dir(Dir.getwd)
end
def self.current_path() self.current_dir.path end
attr_reader(:dirs, :current_dir)
# {
# "/" => [ 2,
# ["usr", "home", "root", "etc"] ],
# ...
# }
def self.getfilehandler(file)
bn = File.basename(file)
case bn
when /\.(avi|mpg|flv)$/
"mplayer #{file} >> /dev/null"
when /\.(jpe?g|png)$/
"feh '#{file}'"
when /\.m3u$/
"cmus-remote -c && cmus-remote -P #{file} && cmus-remote -C 'set play_library=false' && sleep 0.3 && cmus-remote -n"
end
end
def self.enter_dir(dir)
dir = File.expand_path(dir)
olddirs = @dirs.dup
@dirs = {}
cur = 0
got = ""
ary = dir.split('/')
if ary == []; ary = [''] end
["", *ary].each do |folder|
got = File.join(got, folder)
cur = olddirs.has_key?(got) ? olddirs[got][0] : 0
@dirs[got] = [cur, Dir.glob(File.join(got, '*')).sort]
end
# quick fix, sets the cursor correctly when entering ".."
if @dirs.size < olddirs.size
@dirs[@currentdir] = olddirs[@currentdir]
@dirs[got][0] = @dirs[got][1].index(@currentdir) || 0
end
# log @dirs
@currentdir = got
# @dirs[dir] = Dir[File.join(dir, '*')]
Dir.chdir(got)
# log(@dirs)
end
def self.cursor() @dirs[@currentdir][0] end
def self.cursor=(x) @dirs[@currentdir][0] = x end
def self.currentdir() @dirs[@currentdir][1] end
def self.currentfile
@dirs[@currentdir][1][@dirs[@currentdir][0] || 0]
end
def self.get_offset(dir, max)
pos = dir[0]
len = dir[1].size
max -= 2
if len <= max or pos < max/2
return 0
elsif pos > (len - max/2)
return len - max
else
return pos - max/2
end
end
def self.put_directory(c, d)
l = 0
unless d == nil
offset = get_offset(d, lines)
(lines - 1).times do |l|
lpo = l + offset
break if (f = d[1][lpo]) == nil
if File.symlink?(f)
color(3)
elsif File.directory?(f)
color(4)
elsif File.executable?(f)
color(2)
else
color(7)
end
puti l+1, c*@wid, File.basename(f).ljust(@wid-1)[0, @wid]
end
end
column_clear(c, l)
end
def self.column_clear(n, from=0)
(from -1).upto(lines) do |l|
puti l+2, (n * @wid), ' ' * @wid
end
end
def self.column_put_file(n, file)
m = lines
i = 0
File.open(file, 'r') do |f|
f.lines.each do |l|
puti i+1, n * @wid, l.gsub("\t"," ")[0, @wid-1].ljust(@wid-1)
i += 1
break if i == m
end
end
column_clear(n, i)
end
def self.draw
color 7
puti 0, 3, "pwd: #{@current_path}".ljust(cols)
if @dirs.size == 1
@temp = [nil, @dirs["/"]]
else
left = @dirs[@currentdir[0, @currentdir.rindex('/')]]
left ||= @dirs['/']
@temp = [left, @dirs[@currentdir]]
end
@wid = cols / 3
f = currentfile
begin
if File.directory?(f)
put_directory(2, [0, Dir.glob(File.join(f, '*')).sort])
else
column_put_file(2, currentfile)
end
rescue
column_clear(2)
end
2.times do |c|
put_directory(c, @temp[c])
end
movi(self.cursor + 1 - get_offset(@dirs[@currentdir], lines), @wid)
end
# ALL combinations of multiple keys have to be in the COMBS array.
COMBS = %w(
gg
)
def self.main_loop
while true
draw
case @key << geti
when 'j'
self.cursor += 1
self.cursor = currentdir.size - 1 if self.cursor >= currentdir.size
when 'gg'
self.cursor = 0
when 'gh'
enter_dir('~')
when 'G'
self.cursor = currentdir.size - 1
when 'k'
self.cursor -= 1
self.cursor = 0 if self.cursor < 0
when '<bs>', 'h'
enter_dir('..') unless @dirs.size == 1
when '<cr>', 'l'
if File.directory?(currentfile || '')
begin
olddir = @currentdir
enter_dir(currentfile)
rescue Exception
enter_dir olddir
end
else
h = getfilehandler(currentfile)
h and system(h)
end
when 'q'
break
end
unless @key == '' or COMBS.select{ |x|
x.size != @key.size and x.size > @key.size
}.map{ |x|
x[0, @key.size]
}.include? @key
@key = ''
end
end
end
end
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