progress-bar/lib/progress-bar.rb
2014-12-23 19:45:59 +01:00

139 lines
3 KiB
Ruby

require 'dbus'
module ProgressBar
def self.new *a
if STDERR.tty?
Console.new *a
elsif 'KDE' == ENV['XDG_CURRENT_DESKTOP']
KDialog.new *a
else
KDialog.new *a
end
end
end
class ProgressBar::Base
attr_reader :max, :i, :text, :error
attr_accessor :start
def initialize max = nil, text = nil
@start, @max, @i, @text, @error = Time.now, max || 100, 0, text || '', nil
end
def i= x
@i = x.to_i
change_progress
end
def max= val
@max = val
change_progress
end
def increment!( x = nil) self.i += (x || 1) end
alias to_i i
alias inc! increment!
def done_rel() 100.0*i/max end
def done_dur() (Time.now-@start).seconds end
def total_dur
done_dur * max / i
end
def text= x
@text = x
change_text
end
def error= x
@error = x
change_error
end
def change_progress() end
def change_text() end
def change_error() end
def finish() end
end
class ProgressBar::Console < ProgressBar::Base
def initialize *a
super *a
change_text
end
def format_time t
if t.finite?
sprintf "%02d:%02d:%02d", t/1.hour, t/1.minute % 1.hour, t % 1.minute
else
"--:--:--"
end
end
def change_text
l = (100.0*i/max).to_i
dd, td = done_dur, total_dur
STDOUT.printf "\r\e[J%s / %s [%s>%s] %s", format_time(dd), format_time(td), '='*l, ' '*(100-l), text
end
alias change_progress change_text
def change_error
STDERR.printf "\r\e[J%s\n", error
change_text
end
end
class ProgressBar::KDialog < ProgressBar::Base
attr_reader :dialog_service_path, :dialog_object_path, :errors, :dialog_object
def initialize max, text
super max, text
@errors = []
args = %w[kdialog --progressbar] + [text, max.to_s]
@dialog_service_path, @dialog_object_path = IO.popen( args, 'r', &:readlines).join("\n").split ' '
@dialog_bus = DBus.session_bus
@dialog_service = @dialog_bus[@dialog_service_path]
@dialog_object = @dialog_service.object @dialog_object_path
@dialog_object.introspect
@dialog_object.showCancelButton true
change_progress
rescue DBus::Error
raise Interrupt if $!.name == 'org.freedesktop.DBus.Error.ServiceUnknown'
raise
end
def self.kdialog *a
windowid = ENV['WINDOWID']
windowid = (windowid.is_a?(String) && !windowid.empty?) ? ['--attach', windowid] : []
system 'kdialog', *windowid, *a
end
def kdialog(*a) self.class.kdialog *a end
def change_progress()
@dialog_object.Set '', 'value', i
raise Interrupt if @dialog_object.wasCancelled.first
rescue DBus::Error
raise Interrupt if $!.name == 'org.freedesktop.DBus.Error.ServiceUnknown'
raise
end
def change_text()
@dialog_object.setLabelText text
raise Interrupt if @dialog_object.wasCancelled.first
rescue DBus::Error
raise Interrupt if $!.name == 'org.freedesktop.DBus.Error.ServiceUnknown'
raise
end
def change_error() @errors.push error end
def finish()
@dialog_object.close rescue DBus::Error
kdialog '--detailederror', "Some errors occured:", errors.join( "<br/>\n") unless errors.empty?
end
def max= val
@dialog_object.Set '', 'maximum', val
end
def max
@dialog_object.Get '', 'maximum'
end
end