##	message_window.py
##
## Copyright (C) 2005-2006 Travis Shirk <travis@pobox.com>
##
## This program 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 2 only.
##
## This program 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.
##

import gtk
import gtk.glade
import pango
import gobject

import common
from common import gajim

####################
# FIXME: Can't this stuff happen once?
from common import i18n
_ = i18n._
APP = i18n.APP

GTKGUI_GLADE = 'gtkgui.glade'
####################

class MessageWindow:
	'''Class for windows which contain message like things; chats,
	groupchats, etc.'''

	def __init__(self):
		self._controls = {}

		self.widget_name = 'message_window'
		self.xml = gtk.glade.XML(GTKGUI_GLADE, self.widget_name, APP)
		self.window = self.xml.get_widget(self.widget_name)
		self.alignment = self.xml.get_widget('alignment')
		self.notebook = self.xml.get_widget('notebook')

		# Remove the glade pages
		while self.notebook.get_n_pages():
			self.notebook.remove_page(0)
		# Tab customizations
		pref_pos = gajim.config.get('tabs_position')
		if pref_pos != 'top':
			if pref_pos == 'bottom':
				nb_pos = gtk.POS_BOTTOM
			elif pref_pos == 'left':
				nb_pos = gtk.POS_LEFT
			elif pref_pos == 'right':
				nb_pos = gtk.POS_RIGHT
			else:
				nb_pos = gtk.POS_TOP
		else:
			nb_pos = gtk.POS_TOP
		self.notebook.set_tab_pos(nb_pos)
		if gajim.config.get('tabs_always_visible'):
			self.notebook.set_show_tabs(True)
			self.alignment.set_property('top-padding', 2)
		else:
			self.notebook.set_show_tabs(False)
		self.notebook.set_show_border(gajim.config.get('tabs_border'))

		self.window.show_all()

	def new_tab(self, type, contact, acct):
		pass

class MessageWindowMgr:
	'''A manager and factory for MessageWindow objects'''

	# These constants map to common.config.opt_one_window_types indices
	CONFIG_NEVER   = 0
	CONFIG_ALWAYS  = 1
	CONFIG_PERACCT = 2
	CONFIG_PERTYPE = 3
	# A key constant for the main window for all messages
	MAIN_WIN = 'main'

	def __init__(self):
		''' A dictionary of windows; the key depends on the config:
		 CONFIG_NEVER: The key is the contact JID
		 CONFIG_ALWAYS: The key is MessageWindowMgr.MAIN_WIN 
		 CONFIG_PERACCT: The key is the account name
		 CONFIG_PERTYPE: The key is a message type constant'''
		self._windows = {}
		# Map the mode to a int constant for frequent compares
		mode = gajim.config.get('one_message_window')
		self.mode = common.config.opt_one_window_types.index(mode)
		assert(self.mode != -1)
	
	def _new_window(self):
		win = MessageWindow()
		# we track the lifetime of this window
		win.window.connect('delete-event', self._on_window_delete)
		win.window.connect('destroy', self._on_window_destroy)
		return win

	def _gtkWinToMsgWin(self, gtk_win):
		for w in self._windows:
			if w.window == gtk_win:
				return w
		return None

	def _on_window_delete(self, win, event):
		# FIXME
		print "MessageWindowMgr._on_window_delete:", win
		msg_win = self._gtkWinToMsgWin(win)
		# TODO

	def _on_window_destroy(self, win):
		# FIXME
		print "MessageWindowMgr._on_window_destroy:", win
		# TODO: Clean up _windows

	def get_window(self, contact, acct, type):
		key = None
		if self.mode == self.CONFIG_NEVER:
			key = contact.jid
		elif self.mode == self.CONFIG_ALWAYS:
			key = self.MAIN_WIN
		elif self.mode == self.CONFIG_PERACCT:
			key = acct
		elif self.mode == self.CONFIG_PERTYPE:
			key = type

		win = None
		try:
			win = self._windows[key]
		except KeyError:
			# FIXME
			print "Creating tabbed chat window for '%s'" % str(key)
			win = self._new_window()
			self._windows[key] = win
		assert(win)
		return win

class MessageControl(gtk.VBox):
	'''An abstract base widget that can embed in the gtk.Notebook of a MessageWindow'''

	def __init__(self, widget_name, contact):
		gtk.VBox.__init__(self)

		self.contact = contact
		self.compact_view = False

		self.widget_name = widget_name
		self.xml = gtk.glade.XML(GTKGUI_GLADE, widget_name, APP)
		self.widget = self.xml.get_widget(widget_name)

		self.draw_widgets()
	
	def draw_banner(self):
		# TODO
		pass
	def draw_widgets(self):
		self.draw_banner()
		# NOTE: Derived classes should implement this