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|
#!/usr/bin/env ruby
#
# This script generates a directory browser, which lists the working
# directory and allows you to open files or subdirectories by
# double-clicking.
# Create a scrollbar on the right side of the main window and a listbox
# on the left side.
require "tkscrollbox"
# The procedure below is invoked to open a browser on a given file; if the
# file is a directory then another instance of this program is invoked; if
# the file is a regular file then the Mx editor is invoked to display
# the file.
$dirlist = {}
def browsedir (dir)
if $dirlist.key? dir
$dirlist[dir]
else
top = if $dirlist.size > 0 then TkToplevel.new else nil end
list = TkScrollbox.new(top) {
relief 'raised'
width 20
height 20
setgrid 'yes'
pack
}
list.insert 'end', *`ls #{dir}`.split
# Set up bindings for the browser.
list.focus
list.bind "Control-q", proc{exit}
list.bind "Control-c", proc{exit}
list.bind "Control-p", proc{
print "selection <", TkSelection.get, ">\n"
}
list.bind "Double-Button-1", proc{
for i in TkSelection.get.split
print "clicked ", i, "\n"
browse dir, i
end
}
$dirlist[dir] = list
end
end
def browse (dir, file)
file="#{dir}/#{file}"
if File.directory? file
browsedir(file)
else
if File.file? file
if ENV['EDITOR']
system format("%s %s&", ENV['EDITOR'], file)
else
system "xedit #{file}&"
end
else
STDERR.print "\"#{file}\" isn't a directory or regular file"
end
end
end
# Fill the listbox with a list of all the files in the directory (run
# the "ls" command to get that information).
if ARGV.length>0
dir = ARGV[0]
else
dir="."
end
browsedir(dir)
Tk.mainloop
|
