lib/qasim/gui.rb
require 'qasim/qasim_qrc'
require 'qasim/ui'
module Qasim
class QasimApp ; end
class QasimGui < QasimApp
class LockError < RuntimeError ; end
def initialize
@config = Config.new
@map_manager = MapManager.new @config
@map_menu = nil
@context_menu = nil
@connect_error = {}
@connect_running = {}
end
def dbus_notify title, body, icon
bus = Qt::DBusConnection.sessionBus
if !bus.connected?
$stderr.puts(
"Cannot connect to the D-BUS session bus.\n" \
"To start it, run:\n" \
"\teval `dbus-launch --auto-syntax`\n"
)
exit 1
end
msg = Qt::DBusMessage.create_method_call(
'org.freedesktop.Notifications',
'/org/freedesktop/Notifications',
'org.freedesktop.Notifications',
'Notify'
)
msg.arguments = [ APP_NAME, Qt::Variant.from_value( 0, "unsigned int" ),
icon, title, body, [], {}, -1 ]
_rep = bus.call( msg )
# if rep.type == Qt::DBusMessage
# si.showMessage("Qasim",
# "Sorry dude", 2, 5000 )
end
#
# Rebuild map menu
#
def build_map_menu
# reload maps dynamically
@map_manager.parse_maps
@map_menu ||= Qt::Menu.new
@map_menu.clear
previous_host = nil
@map_manager.sort do |mx,my|
mx.name <=> my.name
end.each do |map|
#if map.host != previous_host and not previous_host.nil? then
# @map_menu.addSeparator
#end
itemx = Qt::Action.new(map.name, @map_menu)
itemx.setCheckable true;
#puts "Loading #{map.inspect}"
if map.mounted? then
itemx.setChecked true
end
itemx.connect(SIGNAL(:triggered)) do
action_trigger_map_item map, itemx
end
@map_menu.addAction itemx;
#previous_host = map.name
end
end
#
# Action when map item triggered
#
def action_trigger_map_item map, item
@connect_error[map.filename] = Set.new
@connect_running[map.filename] = 0
method = if map.mounted? then :umount
else :mount
end
begin
map.send(method) do |linkname,cmd,cmd_args|
process = Qt::Process.new
process.connect(SIGNAL('finished(int, QProcess::ExitStatus)')) do |exitcode,exitstatus|
#puts "exitcode = %s, exitstatus = %s" % [exitcode, exitstatus]
@connect_running[map.filename] -= 1
if exitcode != 0 then
@connect_error[map.filename].add linkname
else
end
if @connect_running[map.filename] == 0 then
# display someting
if @connect_error[map.filename].empty? then
dbus_notify "%s (%s)" % [APP_NAME, map.name],
("<b>Map %sed successfully<b>" % method.to_s),
'dialog-information'
else
erroneous = @connect_error[map.path].to_a.join(', ')
dbus_notify "%s (%s)" % [APP_NAME, map.name],
("<b>Unable to %s map</b><br>" % method.to_s) +
("Broken link(s): %s" % erroneous),
'dialog-error'
end
end
end
@connect_running[map.path] += 1
process.start cmd, cmd_args
end
rescue Map::ConnectError => e
puts e.inspect
end
end
#
#
#
def build_context_menu
@context_menu = Qt::Menu.new
act_pref = Qt::Action.new _('&Preferences'), @context_menu
act_pref.setIcon( Qt::Icon::fromTheme("configure") ) rescue nil
act_pref.setIconVisibleInMenu true
act_pref.setEnabled false
act_pref.connect(SIGNAL(:triggered)) do
_res = @pref_dialog.show
end
@context_menu.addAction act_pref;
act_about = Qt::Action.new '&About', @context_menu
act_about.setIcon( Qt::Icon::fromTheme("help-about") ) rescue nil
act_about.setIconVisibleInMenu true
#act_about.setEnabled true
act_about.connect(SIGNAL(:triggered)) do
_res = @about_dialog.show
end
@context_menu.addAction act_about;
@context_menu.addSeparator
act_quit = Qt::Action.new _('Quit'), @context_menu
act_quit.setIcon( Qt::Icon::fromTheme("application-exit") ) rescue nil
act_quit.setIconVisibleInMenu true
act_quit.connect(SIGNAL(:triggered)) { @app.quit }
@context_menu.addAction act_quit
end
#
#
#
def build_interface
@app = Qt::Application.new(ARGV)
#Qt.debug_level = Qt::DebugLevel::High
#Qt.debug_level = Qt::DebugLevel::Extensive
@app.setQuitOnLastWindowClosed false
@main_win = Qt::MainWindow.new
@systray = Qt::SystemTrayIcon.new @main_win
@about_dialog = Qasim::Ui::About.new @main_win
@pref_dialog = Qasim::Ui::Preferences.new @main_win
std_icon = Qt::Icon.new( ":/qasim/qasim-icon" )
_alt_icon = Qt::Icon.new
_blinking = false
@systray.icon = std_icon
@systray.show
@systray.setToolTip("Qasim %s" % APP_VERSION);
build_map_menu
build_context_menu
@systray.contextMenu = @context_menu
@systray.connect(SIGNAL('activated(QSystemTrayIcon::ActivationReason)')) do |reason|
case reason
when Qt::SystemTrayIcon::Trigger then
build_map_menu
@map_menu.popup(Qt::Cursor::pos())
#blinking = !blinking
#si.icon = blinking ? alt_icon : std_icon
when Qt::SystemTrayIcon::MiddleClick then
#
when Qt::SystemTrayIcon::Context then
#
when Qt::SystemTrayIcon::DoubleClick then
#
end
end
end
def lock_set
begin
# create an exclusive lock file
_have_lock = true
FileUtils.mkdir_p APP_CONFIG_DIR unless File.exist? APP_CONFIG_DIR
lockfname = File.join APP_CONFIG_DIR, "lock"
fd = IO::sysopen( lockfname,
Fcntl::O_WRONLY | Fcntl::O_EXCL | Fcntl::O_CREAT)
f = IO.open(fd)
f.syswrite( "#{Process.pid}\n" )
f.close
rescue Errno::EEXIST => _e
# test if the other process still exist
masterpid = File.read(lockfname).strip
other_path = "/proc/#{masterpid.to_i}"
STDERR.puts "testing %s" % other_path
if File.exist? other_path then
cmdline = File.read( File.join( other_path, 'cmdline' ) )
if cmdline =~ /qasim/ then
raise LockError, "Another instance of %s is already running." % APP_NAME
end
end
fd = IO::sysopen( lockfname,
Fcntl::O_WRONLY | Fcntl::O_EXCL )
f = IO.open(fd)
f.syswrite( "#{Process.pid}\n" )
f.close
end
end
def lock_unset
# remove lock if it exists
lockfname = File.join APP_CONFIG_DIR, "lock"
return unless File.exist? lockfname
masterpid = File.read(lockfname).strip
if masterpid.to_i == Process.pid then
FileUtils.rm lockfname
end
end
#
#
#
def run
#Process.daemon(false) #FIXME: add foreground mode too
lock_set
@app.exec
exit 0
rescue LockError
STDERR.puts "Error: %s is already running" % APP_NAME
exit 1
ensure
lock_unset
end
#
#
#
def self.main
qasim = QasimGui.new
qasim.build_interface
qasim.run
end
end
end