##	systray.py
##
## Copyright (C) 2003-2007 Yann Le Boulanger <asterix@lagaule.org>
## Copyright (C) 2003-2004 Vincent Hanquez <tab@snarc.org>
## Copyright (C) 2005-2006 Nikos Kouremenos <kourem@gmail.com>
## Copyright (C) 2005 Dimitur Kirov <dkirov@gmail.com>
## Copyright (C) 2005-2006 Travis Shirk <travis@pobox.com>
## Copyright (C) 2005 Norman Rasmussen <norman@rasmussen.co.za>
## Copyright (C) 2007 Lukas Petrovicky <lukas@petrovicky.net>
##
## This file is part of Gajim.
##
## Gajim is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published
## by the Free Software Foundation; version 3 only.
##
## Gajim is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Gajim.  If not, see <http://www.gnu.org/licenses/>.
##

import gtk
import gobject
import os

import dialogs
import config
import tooltips
import gtkgui_helpers

from common import gajim
from common import helpers

HAS_SYSTRAY_CAPABILITIES = True

try:
	import egg.trayicon as trayicon	# gnomepythonextras trayicon
except:
	try:
		import trayicon # our trayicon
	except:
		gajim.log.debug('No trayicon module available')
		HAS_SYSTRAY_CAPABILITIES = False


class Systray:
	'''Class for icon in the notification area
	This class is both base class (for statusicon.py) and normal class
	for trayicon in GNU/Linux'''

	def __init__(self):
		self.single_message_handler_id = None
		self.new_chat_handler_id = None
		self.t = None
		# click somewhere else does not popdown menu. workaround this.
		self.added_hide_menuitem = False 
		self.img_tray = gtk.Image()
		self.status = 'offline'
		self.xml = gtkgui_helpers.get_glade('systray_context_menu.glade')
		self.systray_context_menu = self.xml.get_widget('systray_context_menu')
		self.xml.signal_autoconnect(self)
		self.popup_menus = []

	def subscribe_events(self):
		'''Register listeners to the events class'''
		gajim.events.event_added_subscribe(self.on_event_added)
		gajim.events.event_removed_subscribe(self.on_event_removed)

	def unsubscribe_events(self):
		'''Unregister listeners to the events class'''
		gajim.events.event_added_unsubscribe(self.on_event_added)
		gajim.events.event_removed_unsubscribe(self.on_event_removed)

	def on_event_added(self, event):
		'''Called when an event is added to the event list'''
		if event.show_in_systray:
			self.set_img()

	def on_event_removed(self, event_list):
		'''Called when one or more events are removed from the event list'''
		self.set_img()

	def set_img(self):
		if not gajim.interface.systray_enabled:
			return
		if gajim.events.get_nb_systray_events():
			state = 'event'
		else:
			state = self.status
		image = gajim.interface.roster.jabber_state_images['16'][state]
		if image.get_storage_type() == gtk.IMAGE_ANIMATION:
			self.img_tray.set_from_animation(image.get_animation())
		elif image.get_storage_type() == gtk.IMAGE_PIXBUF:
			self.img_tray.set_from_pixbuf(image.get_pixbuf())

	def change_status(self, global_status):
		''' set tray image to 'global_status' '''
		# change image and status, only if it is different 
		if global_status is not None and self.status != global_status:
			self.status = global_status
		self.set_img()

	def start_chat(self, widget, account, jid):
		contact = gajim.contacts.get_first_contact_from_jid(account, jid)
		if gajim.interface.msg_win_mgr.has_window(jid, account):
			gajim.interface.msg_win_mgr.get_window(jid, account).set_active_tab(
				jid, account)
			gajim.interface.msg_win_mgr.get_window(jid, account).window.present()
		elif contact:
			gajim.interface.roster.new_chat(contact, account)
			gajim.interface.msg_win_mgr.get_window(jid, account).set_active_tab(
				jid, account)

	def on_single_message_menuitem_activate(self, widget, account):
		dialogs.SingleMessageWindow(account, action = 'send')

	def on_new_chat(self, widget, account):
		dialogs.NewChatDialog(account)

	def make_menu(self, event_button, event_time):
		'''create chat with and new message (sub) menus/menuitems'''
		for m in self.popup_menus:
			m.destroy()

		chat_with_menuitem = self.xml.get_widget('chat_with_menuitem')
		single_message_menuitem = self.xml.get_widget(
			'single_message_menuitem')
		status_menuitem = self.xml.get_widget('status_menu')
		join_gc_menuitem = self.xml.get_widget('join_gc_menuitem')
		sounds_mute_menuitem = self.xml.get_widget('sounds_mute_menuitem')

		if self.single_message_handler_id:
			single_message_menuitem.handler_disconnect(
				self.single_message_handler_id)
			self.single_message_handler_id = None
		if self.new_chat_handler_id:
			chat_with_menuitem.disconnect(self.new_chat_handler_id)
			self.new_chat_handler_id = None

		sub_menu = gtk.Menu()
		self.popup_menus.append(sub_menu)
		status_menuitem.set_submenu(sub_menu)

		gc_sub_menu = gtk.Menu() # gc is always a submenu
		join_gc_menuitem.set_submenu(gc_sub_menu)

		# We need our own set of status icons, let's make 'em!
		iconset = gajim.config.get('iconset')
		path = os.path.join(helpers.get_iconset_path(iconset), '16x16')
		state_images = gajim.interface.roster.load_iconset(path)

		if state_images.has_key('muc_active'):
			join_gc_menuitem.set_image(state_images['muc_active'])

		for show in ('online', 'chat', 'away', 'xa', 'dnd', 'invisible'):
			uf_show = helpers.get_uf_show(show, use_mnemonic = True)
			item = gtk.ImageMenuItem(uf_show)
			item.set_image(state_images[show])
			sub_menu.append(item)
			item.connect('activate', self.on_show_menuitem_activate, show)

		item = gtk.SeparatorMenuItem()
		sub_menu.append(item)

		item = gtk.ImageMenuItem(_('_Change Status Message...'))
		path = os.path.join(gajim.DATA_DIR, 'pixmaps', 'kbd_input.png')
		img = gtk.Image()
		img.set_from_file(path)
		item.set_image(img)
		sub_menu.append(item)
		item.connect('activate', self.on_change_status_message_activate)
		connected_accounts = gajim.get_number_of_connected_accounts()
		if connected_accounts < 1:
			item.set_sensitive(False)

		item = gtk.SeparatorMenuItem()
		sub_menu.append(item)

		uf_show = helpers.get_uf_show('offline', use_mnemonic = True)
		item = gtk.ImageMenuItem(uf_show)
		item.set_image(state_images['offline'])
		sub_menu.append(item)
		item.connect('activate', self.on_show_menuitem_activate, 'offline')

		iskey = connected_accounts > 0 and not (connected_accounts == 1 and
				gajim.connections[gajim.connections.keys()[0]].is_zeroconf)
		chat_with_menuitem.set_sensitive(iskey)
		single_message_menuitem.set_sensitive(iskey)
		join_gc_menuitem.set_sensitive(iskey)

		if connected_accounts >= 2: # 2 or more connections? make submenus
			account_menu_for_chat_with = gtk.Menu()
			chat_with_menuitem.set_submenu(account_menu_for_chat_with)
			self.popup_menus.append(account_menu_for_chat_with)

			account_menu_for_single_message = gtk.Menu()
			single_message_menuitem.set_submenu(
				account_menu_for_single_message)
			self.popup_menus.append(account_menu_for_single_message)

			accounts_list = gajim.contacts.get_accounts()
			accounts_list.sort()
			for account in accounts_list:
				if gajim.connections[account].is_zeroconf:
					continue
				if gajim.connections[account].connected > 1:
					#for chat_with
					item = gtk.MenuItem(_('using account %s') % account)
					account_menu_for_chat_with.append(item)
					item.connect('activate', self.on_new_chat, account)

					#for single message
					item = gtk.MenuItem(_('using account %s') % account)
					item.connect('activate',
						self.on_single_message_menuitem_activate, account)
					account_menu_for_single_message.append(item)

					# join gc 
					gc_item = gtk.MenuItem(_('using account %s') % account, False)
					gc_sub_menu.append(gc_item)
					gc_menuitem_menu = gtk.Menu()
					gajim.interface.roster.add_bookmarks_list(gc_menuitem_menu,
						account)
					gc_item.set_submenu(gc_menuitem_menu)
					gc_sub_menu.show_all()

		elif connected_accounts == 1: # one account
			# one account connected, no need to show 'as jid'
			for account in gajim.connections:
				if gajim.connections[account].connected > 1:
					self.new_chat_handler_id = chat_with_menuitem.connect(
							'activate', self.on_new_chat, account)
					# for single message
					single_message_menuitem.remove_submenu()
					self.single_message_handler_id = single_message_menuitem.\
						connect('activate',
						self.on_single_message_menuitem_activate, account)

					# join gc
					gajim.interface.roster.add_bookmarks_list(gc_sub_menu,
						account)
					break # No other connected account

		sounds_mute_menuitem.set_active(not gajim.config.get('sounds_on'))

		if os.name == 'nt': 
			if gtk.pygtk_version >= (2, 10, 0) and gtk.gtk_version >= (2, 10, 0):
				if self.added_hide_menuitem is False:
					self.systray_context_menu.prepend(gtk.SeparatorMenuItem()) 
					item = gtk.MenuItem(_('Hide this menu')) 
					self.systray_context_menu.prepend(item) 
					self.added_hide_menuitem = True 
				self.systray_context_menu.popup(None, None,
					gtk.status_icon_position_menu, event_button,
					event_time, self.status_icon)

		else: # GNU and Unices
			self.systray_context_menu.popup(None, None, None, event_button,
				event_time)
		self.systray_context_menu.show_all()

	def on_show_all_events_menuitem_activate(self, widget):
		events = gajim.events.get_systray_events()
		for account in events:
			for jid in events[account]:
				for event in events[account][jid]:
					gajim.interface.handle_event(account, jid, event.type_)

	def on_sounds_mute_menuitem_activate(self, widget):
		gajim.config.set('sounds_on', not widget.get_active()) 
		gajim.interface.save_config()

	def on_show_roster_menuitem_activate(self, widget):
		win = gajim.interface.roster.window
		win.present()

	def on_preferences_menuitem_activate(self, widget):
		if gajim.interface.instances.has_key('preferences'):
			gajim.interface.instances['preferences'].window.present()
		else:
			gajim.interface.instances['preferences'] = config.PreferencesWindow()

	def on_quit_menuitem_activate(self, widget):	
		gajim.interface.roster.on_quit_menuitem_activate(widget)

	def on_left_click(self):
		win = gajim.interface.roster.window
		# toggle visible/hidden for roster window
		if win.get_property('visible') and win.get_property('has-toplevel-focus'):
			# visible in ANY virtual desktop?

			# we could be in another VD right now. eg vd2
			# and we want to show it in vd2
			if not gtkgui_helpers.possibly_move_window_in_current_desktop(win):
				win.hide() # else we hide it from VD that was visible in
		else:
			# in Windows (perhaps other Window Managers too) minimize state
			# is remembered, so make sure it's not minimized (iconified)
			# because user wants to see roster
			win.deiconify()
			win.present()

	def handle_first_event(self):
		account, jid, event = gajim.events.get_first_systray_event()
		gajim.interface.handle_event(account, jid, event.type_)

	def on_middle_click(self):
		'''middle click raises window to have complete focus (fe. get kbd events)
		but if already raised, it hides it'''
		if len(gajim.events.get_systray_events()) == 0:
			return
		self.handle_first_event()

	def on_clicked(self, widget, event):
		self.on_tray_leave_notify_event(widget, None)
		if event.type != gtk.gdk.BUTTON_PRESS:
			return
		if event.button == 1: # Left click
			self.on_left_click()
		elif event.button == 2: # middle click
			self.on_middle_click()
		elif event.button == 3: # right click
			self.make_menu(event.button, event.time)

	def on_show_menuitem_activate(self, widget, show):
		# we all add some fake (we cannot select those nor have them as show)
		# but this helps to align with roster's status_combobox index positions
		l = ['online', 'chat', 'away', 'xa', 'dnd', 'invisible', 'SEPARATOR',
			'CHANGE_STATUS_MSG_MENUITEM', 'SEPARATOR', 'offline']
		index = l.index(show)
		current = gajim.interface.roster.status_combobox.get_active()
		if index != current:
			gajim.interface.roster.status_combobox.set_active(index)
		elif not helpers.statuses_unified():
			# We maybe need to emit the changed signal if all globaly sync'ed
			# account don't have the global status
			gajim.interface.roster.status_combobox.emit('changed')

	def on_change_status_message_activate(self, widget):
		model = gajim.interface.roster.status_combobox.get_model()
		active = gajim.interface.roster.status_combobox.get_active()
		status = model[active][2].decode('utf-8')
		dlg = dialogs.ChangeStatusMessageDialog(status)
		dlg.window.present()
		message = dlg.run()
		if message is not None: # None if user press Cancel
			accounts = gajim.connections.keys()
			for acct in accounts:
				if not gajim.config.get_per('accounts', acct,
					'sync_with_global_status'):
					continue
				show = gajim.SHOW_LIST[gajim.connections[acct].connected]
				gajim.interface.roster.send_status(acct, show, message)

	def show_tooltip(self, widget):
		position = widget.window.get_origin()
		if self.tooltip.id == position:
			size = widget.window.get_size()
			self.tooltip.show_tooltip('', size[1], position[1])

	def on_tray_motion_notify_event(self, widget, event):
		position = widget.window.get_origin()
		if self.tooltip.timeout > 0:
			if self.tooltip.id != position:
				self.tooltip.hide_tooltip()
		if self.tooltip.timeout == 0 and \
			self.tooltip.id != position:
			self.tooltip.id = position
			self.tooltip.timeout = gobject.timeout_add(500,
				self.show_tooltip, widget)

	def on_tray_leave_notify_event(self, widget, event):
		position = widget.window.get_origin()
		if self.tooltip.timeout > 0 and \
			self.tooltip.id == position:
			self.tooltip.hide_tooltip()

	def on_tray_destroyed(self, widget):
		'''re-add trayicon when systray is destroyed'''
		self.t = None
		if gajim.interface.systray_enabled:
			self.show_icon()

	def show_icon(self):
		if not self.t:
			self.t = trayicon.TrayIcon('Gajim')
			self.t.connect('destroy', self.on_tray_destroyed)
			eb = gtk.EventBox()
			# avoid draw seperate bg color in some gtk themes
			eb.set_visible_window(False)
			eb.set_events(gtk.gdk.POINTER_MOTION_MASK)
			eb.connect('button-press-event', self.on_clicked)
			eb.connect('motion-notify-event', self.on_tray_motion_notify_event)
			eb.connect('leave-notify-event', self.on_tray_leave_notify_event)
			self.tooltip = tooltips.NotificationAreaTooltip()

			self.img_tray = gtk.Image()
			eb.add(self.img_tray)
			self.t.add(eb)
			self.set_img()
			self.subscribe_events()
		self.t.show_all()

	def hide_icon(self):
		if self.t:
			self.t.destroy()
			self.t = None
			self.unsubscribe_events()