# -*- coding: utf-8 -*-

## 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/>.
##

'''
Message length notifier plugin.

:author: Mateusz Biliński <mateusz@bilinski.it>
:since: 1st June 2008
:copyright: Copyright (2008) Mateusz Biliński <mateusz@bilinski.it>
:license: GPL
'''

import sys

import gtk
from common import i18n

from plugins import GajimPlugin
from plugins.helpers import log, log_calls
from plugins.gui import GajimPluginConfigDialog

class LengthNotifierPlugin(GajimPlugin):
	name = u'Message Length Notifier'
	short_name = u'length_notifier'
	version = u'0.1'
	description = u'''Highlights message entry field in chat window when given length of message is exceeded.'''
	authors = [u'Mateusz Biliński <mateusz@bilinski.it>']
	homepage = u'http://blog.bilinski.it'
	
	@log_calls('LengthNotifierPlugin')
	def init(self):
		self.config_dialog = LengthNotifierPluginConfigDialog(self)
		
		self.gui_extension_points = {
			'chat_control' : (self.connect_with_chat_control,
							  self.disconnect_from_chat_control)
		}
		
		self.config_default_values = {'MESSAGE_WARNING_LENGTH' : (140, _('Message length at which notification is invoked.')),
									  'WARNING_COLOR' : ('#F0DB3E', _('Background color of text entry field in chat window when notification is invoked.')),
									  'JIDS' : ([], _('JabberIDs that plugin should be used with (eg. restrict only to one microblogging bot). If empty plugin is used with every JID. [not implemented]'))
									 }
		
	@log_calls('LengthNotifierPlugin')
	def textview_length_warning(self, tb, chat_control):
		tv = chat_control.msg_textview
		d = chat_control.length_notifier_plugin_data
		t = tb.get_text(tb.get_start_iter(), tb.get_end_iter())
		if t:
			len_t = len(t)
			#print("len_t: %d"%(len_t))
			if len_t>self.config['MESSAGE_WARNING_LENGTH']:
				if not d['prev_color']:
					d['prev_color'] = tv.style.copy().base[gtk.STATE_NORMAL]
				tv.modify_base(gtk.STATE_NORMAL, gtk.gdk.color_parse(self.config['WARNING_COLOR']))
			elif d['prev_color']:
				tv.modify_base(gtk.STATE_NORMAL, d['prev_color'])
				d['prev_color'] = None
	
	@log_calls('LengthNotifierPlugin')
	def connect_with_chat_control(self, chat_control):
		jid = chat_control.contact.jid
		if self.jid_is_ok(jid):
			d = {'prev_color' : None}
			tv = chat_control.msg_textview
			tb = tv.get_buffer()
			h_id = tb.connect('changed', self.textview_length_warning, chat_control)
			d['h_id'] = h_id
			
			t = tb.get_text(tb.get_start_iter(), tb.get_end_iter())
			if t:
				len_t = len(t)
				if len_t>self.config['MESSAGE_WARNING_LENGTH']:
					d['prev_color'] = tv.style.copy().base[gtk.STATE_NORMAL]
					tv.modify_base(gtk.STATE_NORMAL, gtk.gdk.color_parse(self.config['WARNING_COLOR']))
				
			chat_control.length_notifier_plugin_data = d
			
			return True
		
		return False
	
	@log_calls('LengthNotifierPlugin')
	def disconnect_from_chat_control(self, chat_control):
		try:
			d = chat_control.length_notifier_plugin_data
			tv = chat_control.msg_textview
			tv.get_buffer().disconnect(d['h_id'])
			if d['prev_color']:
				tv.modify_base(gtk.STATE_NORMAL, d['prev_color'])
		except AttributeError, error:
			pass
			#log.debug('Length Notifier Plugin was (probably) never connected with this chat window.\n Error: %s' % (error))
	
	@log_calls('LengthNotifierPlugin')
	def jid_is_ok(self, jid):
		if jid in self.config['JIDS'] or not self.config['JIDS']:
			return True
		
		return False
	
class LengthNotifierPluginConfigDialog(GajimPluginConfigDialog):
	def init(self):
		self.GLADE_FILE_PATH = self.plugin.local_file_path('config_dialog.glade')
		self.xml = gtk.glade.XML(self.GLADE_FILE_PATH, root='length_notifier_config_table', domain=i18n.APP)
		self.config_table = self.xml.get_widget('length_notifier_config_table')
		self.child.pack_start(self.config_table)
		
		self.message_length_spinbutton = self.xml.get_widget('message_length_spinbutton')
		self.notification_colorbutton = self.xml.get_widget('notification_colorbutton')
		self.jids_entry = self.xml.get_widget('jids_entry')
		
		self.xml.signal_autoconnect(self)
	
	def on_run(self):
		self.message_length_spinbutton.set_value(self.plugin.config['MESSAGE_WARNING_LENGTH'])
		self.notification_colorbutton.set_color(gtk.gdk.color_parse(self.plugin.config['WARNING_COLOR']))
		#self.jids_entry.set_text(self.plugin.config['JIDS'])
		self.jids_entry.set_text(','.join(self.plugin.config['JIDS']))
		
	@log_calls('LengthNotifierPluginConfigDialog')
	def on_message_length_spinbutton_value_changed(self, spinbutton):
		self.plugin.config['MESSAGE_WARNING_LENGTH'] = spinbutton.get_value()
	
	@log_calls('LengthNotifierPluginConfigDialog')
	def on_notification_colorbutton_color_set(self, colorbutton):
		self.plugin.config['WARNING_COLOR'] = colorbutton.get_color().to_string()
	
	@log_calls('LengthNotifierPluginConfigDialog')
	def on_jids_entry_changed(self, entry):
		text = entry.get_text()
		if len(text)>0:
			self.plugin.config['JIDS'] = entry.get_text().split(',')
		else:
			self.plugin.config['JIDS'] = []
	
	@log_calls('LengthNotifierPluginConfigDialog')
	def on_jids_entry_editing_done(self, entry):
		pass