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|
OPTIONS = {
'hidden' => false,
'sort' => :name,
'dir_first' => true,
'sort_reverse' => false,
'color' => true,
'filepreview' => true,
}
module Fm
SCHEDULER_PRIORITY = -1
COPY_PRIORITY = -2
SCHEDULED = []
COLUMNS = 4
UPDATE_SIGNAL = 31
VI = "vi -c 'map h :quit<CR>' -c 'map q :quit<CR>'" <<
" -c 'map H :unmap h<CR>:unmap H<CR>' %s"
def self.initialize(pwd=nil)
@bars = []
@bars_thread = nil
@buffer = ''
# @mutex = Mutex.new
@pwd = nil
@search_string = ''
@copy = []
@ignore_until = nil
@trash = File.expand_path('~/.trash')
pwd ||= Dir.getwd
# `' and `` are the original PWD unless overwritten by .fmrc
@memory = {
'`' => pwd,
'\'' => pwd
}
# Read the .fmrc
@fmrc = File.expand_path('~/.fmrc')
if (File.exists?(@fmrc))
loaded = Marshal.load(File.read(@fmrc))
if Hash === loaded
@memory.update(loaded)
end
end
# `0 is always the original PWD
@memory['0'] = pwd
# Give me some way to redraw screen while waiting for
# input from Interface.geti
Signal.trap(UPDATE_SIGNAL) do
@pwd.refresh
draw
end
# for i in 1..20
# eval "Signal.trap(#{i}) do
# log #{i}
# exit if #{i} == 9 end"
# end
boot_up(pwd)
end
attr_reader(:dirs, :pwd)
def self.pwd() @pwd end
def self.boot_up(pwd=nil)
pwd ||= @pwd.path || Dir.getwd
# This thread inspects directories
@scheduler_active = false
if defined? @scheduler and Thread === @scheduler
@scheduler.kill
end
@scheduler = Thread.new do
while true
Thread.stop
if @scheduler_active and !SCHEDULED.empty?
# @mutex.synchronize {
while dir = SCHEDULED.shift
dir.refresh(true)
dir.resize
# force_update
end
# }
end
end
end
@scheduler.priority = SCHEDULER_PRIORITY
@dirs = Hash.new() do |hash, key|
hash[key] = newdir = Directory.new(key)
# newdir.schedule
newdir
end
@path = [@dirs['/']]
enter_dir(pwd)
@scheduler_active = true
@scheduler.run
end
def self.force_update
# Send a signal to this process
Process.kill(UPDATE_SIGNAL, PID)
end
def self.lines
Interface::lines - @bars.size
end
def self.dump
remember_dir
dumped = Marshal.dump(@memory)
File.open(@fmrc, 'w') do |f|
f.write(dumped)
end
end
def self.on_interrupt
@buffer = ''
sleep 0.2
end
def self.main_loop
bool = false
while true
if @pwd.size == 0 or @pwd.pos < 0
@pwd.pos = 0
elsif @pwd.pos >= @pwd.size - 1
@pwd.pos = @pwd.size - 1
end
begin
# @mutex.synchronize {
log "drawing"
draw()
# }
rescue Interrupt
on_interrupt
rescue Exception
log($!)
log(caller)
end
begin
# unless bool
# bool = true
key = geti
# else
# key = geti
# key = 'j'
# end
# @mutex.synchronize {
press(key)
# }
rescue Interrupt
on_interrupt
end
end
end
def self.current_path() @pwd.path end
def self.reset_title() set_title("fm: #{@pwd.path}") end
def self.enter_dir_safely(dir)
dir = File.expand_path(dir)
if File.exists?(dir) and File.directory?(dir)
olddir = @pwd.path
begin
enter_dir(dir)
return true
rescue
log("NIGGER" * 100)
log($!)
log(caller)
enter_dir(olddir)
return false
end
end
end
def self.enter_dir(dir)
@pwd.restore if @pwd
@marked = []
dir = File.expand_path(dir)
oldpath = @path.dup
# NOTE: @dirs[unknown] is not nil but Directory.new(unknown)
@path = [@dirs['/']]
unless dir == '/'
dir.slice(0)
accumulated = '/'
for part in dir.split('/')
unless part.empty?
accumulated = File.join(accumulated, part)
@path << @dirs[accumulated]
end
end
end
@pwd = @path.last
@pwd.pos = @pwd.pos
@pwd.files_raw.dup.each do |x|
@dirs[x] if File.directory?(x)
end
reset_title()
if @path.size < oldpath.size
@pwd.pos = @pwd.files_raw.index(oldpath.last.path) || 0
end
i = 0
@path.each_with_index do |p, i|
schedule(p)
unless i == @path.size - 1
p.pointed_file = @path[i+1].path
end
end
Dir.chdir(@pwd.path)
end
def self.currentfile() @pwd.files[@pwd.pos] end
def self.selection()
if @marked.empty?
[currentfile]
else
@marked.dup
end
end
def self.schedule(dir)
dir.scheduled = true
SCHEDULED << dir
@scheduler.run
end
def self.move_to_trash!(fn)
unless File.exists?(@trash)
Dir.mkdir(@trash)
end
new_path = File.join(@trash, fn.basename)
Action.move(fn, new_path)
return new_path
end
def self.move_to_trash(file)
unless file
return
end
if String === file
file = Directory::Entry.new(file)
end
if file.exists?
if file.dir?
if !file.in?(@trash) and file.size > 0
return move_to_trash!(file)
else
Dir.rmdir(file.path) rescue nil
end
elsif file.symlink?
file.delete!
else
if !file.in?(@trash) and file.size > 0
return move_to_trash!(file)
else
file.delete!
end
end
end
return nil
end
def self.bar_add(bar)
if @bars.empty?
# This thread updates the statusbars
@bars_thread = Thread.new do
while true
draw_bars
sleep 0.5
end
end
end
@bars << bar
end
def self.bar_del(bar)
@bars.delete(bar)
if @bars.empty?
@bars_thread.kill
@bars_thread = nil
end
end
end
|