##	conversation_textview.py
##
## Contributors for this file:
##	- Yann Le Boulanger <asterix@lagaule.org>
##	- Nikos Kouremenos <kourem@gmail.com>
##
## Copyright (C) 2003-2004 Yann Le Boulanger <asterix@lagaule.org>
##                         Vincent Hanquez <tab@snarc.org>
## Copyright (C) 2005 Yann Le Boulanger <asterix@lagaule.org>
##                    Vincent Hanquez <tab@snarc.org>
##                    Nikos Kouremenos <nkour@jabber.org>
##                    Dimitur Kirov <dkirov@gmail.com>
##                    Travis Shirk <travis@pobox.com>
##                    Norman Rasmussen <norman@rasmussen.co.za>
##
## 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 time
import tooltips
import dialogs
import locale

from common import gajim
from common import helpers
from common import i18n
from calendar import timegm

_ = i18n._
APP = i18n.APP
gtk.glade.bindtextdomain(APP, i18n.DIR)
gtk.glade.textdomain(APP)

GTKGUI_GLADE = 'gtkgui.glade'

class ConversationTextview(gtk.TextView):
	'''Class for the conversation textview (where user reads already said messages)
	for chat/groupchat windows'''
	def __init__(self, account):
		gtk.TextView.__init__(self)

		# set properties
		self.set_border_width(1)
		self.set_accepts_tab(True)
		self.set_editable(False)
		self.set_cursor_visible(False)
		self.set_wrap_mode(gtk.WRAP_WORD)
		self.set_left_margin(2)
		self.set_right_margin(2)

		# connect signals
		self.connect('motion_notify_event', self.on_textview_motion_notify_event)
		self.connect('populate_popup', self.on_textview_populate_popup)
		self.connect('button_press_event', self.on_textview_button_press_event)

		self.account = account
		self.change_cursor = None
		self.last_time_printout = 0

		font = pango.FontDescription(gajim.config.get('conversation_font'))
		self.modify_font(font)
		buffer = self.get_buffer()
		end_iter = buffer.get_end_iter()
		buffer.create_mark('end', end_iter, False)

		self.tagIn = buffer.create_tag('incoming')
		color = gajim.config.get('inmsgcolor')
		self.tagIn.set_property('foreground', color)
		self.tagOut = buffer.create_tag('outgoing')
		color = gajim.config.get('outmsgcolor')
		self.tagOut.set_property('foreground', color)
		self.tagStatus = buffer.create_tag('status')
		color = gajim.config.get('statusmsgcolor')
		self.tagStatus.set_property('foreground', color)

		tag = buffer.create_tag('marked')
		color = gajim.config.get('markedmsgcolor')
		tag.set_property('foreground', color)
		tag.set_property('weight', pango.WEIGHT_BOLD)

		tag = buffer.create_tag('time_sometimes')
		tag.set_property('foreground', 'grey')
		tag.set_property('scale', pango.SCALE_SMALL)
		tag.set_property('justification', gtk.JUSTIFY_CENTER)

		tag = buffer.create_tag('small')
		tag.set_property('scale', pango.SCALE_SMALL)

		tag = buffer.create_tag('restored_message')
		color = gajim.config.get('restored_messages_color')
		tag.set_property('foreground', color)

		tag = buffer.create_tag('url')
		color = gajim.config.get('urlmsgcolor')
		tag.set_property('foreground', color)
		tag.set_property('underline', pango.UNDERLINE_SINGLE)
		tag.connect('event', self.hyperlink_handler, 'url')

		tag = buffer.create_tag('mail')
		tag.set_property('foreground', color)
		tag.set_property('underline', pango.UNDERLINE_SINGLE)
		tag.connect('event', self.hyperlink_handler, 'mail')

		tag = buffer.create_tag('bold')
		tag.set_property('weight', pango.WEIGHT_BOLD)

		tag = buffer.create_tag('italic')
		tag.set_property('style', pango.STYLE_ITALIC)

		tag = buffer.create_tag('underline')
		tag.set_property('underline', pango.UNDERLINE_SINGLE)

		buffer.create_tag('focus-out-line', justification = gtk.JUSTIFY_CENTER)

		self.line_tooltip = tooltips.BaseTooltip()

	def update_tags(self):
		self.tagIn.set_property('foreground', gajim.config.get('inmsgcolor'))
		self.tagOut.set_property('foreground', gajim.config.get('outmsgcolor'))
		self.tagStatus.set_property('foreground',
			gajim.config.get('statusmsgcolor'))

	def at_the_end(self):
		buffer = self.get_buffer()
		end_iter = buffer.get_end_iter()
		end_rect = self.get_iter_location(end_iter)
		visible_rect = self.get_visible_rect()
		if end_rect.y <= (visible_rect.y + visible_rect.height):
			return True
		return False

	def scroll_to_end(self):
		parent = self.get_parent()
		buffer = self.get_buffer()
		self.scroll_to_mark(buffer.get_mark('end'), 0, True, 0, 1)
		adjustment = parent.get_hadjustment()
		adjustment.set_value(0)
		return False # when called in an idle_add, just do it once

	def bring_scroll_to_end(self, diff_y = 0):
		''' scrolls to the end of textview if end is not visible '''
		buffer = self.get_buffer()
		end_iter = buffer.get_end_iter()
		end_rect = self.get_iter_location(end_iter)
		visible_rect = self.get_visible_rect()
		# scroll only if expected end is not visible
		if end_rect.y >= (visible_rect.y + visible_rect.height + diff_y):
			gobject.idle_add(self.scroll_to_end_iter)

	def scroll_to_end_iter(self):
		buffer = self.get_buffer()
		end_iter = buffer.get_end_iter()
		self.scroll_to_iter(end_iter, 0, False, 1, 1)
		return False # when called in an idle_add, just do it once

	def show_line_tooltip(self):
		pointer = self.get_pointer()
		x, y = self.window_to_buffer_coords(gtk.TEXT_WINDOW_TEXT, pointer[0],
			pointer[1])
		tags = self.get_iter_at_location(x, y).get_tags()
		tag_table = self.get_buffer().get_tag_table()
		over_line = False
		for tag in tags:
			if tag == tag_table.lookup('focus-out-line'):
				over_line = True
				break
		if over_line and not self.line_tooltip.win:
			# check if the current pointer is still over the line
			position = self.window.get_origin()
			win = self.get_toplevel()
			self.line_tooltip.show_tooltip(_('Text below this line is what has '
			'been said since the last time you paid attention to this group chat'),	8, position[1] + pointer[1])

	def on_textview_motion_notify_event(self, widget, event):
		'''change the cursor to a hand when we are over a mail or an url'''
		pointer_x, pointer_y, spam = self.window.get_pointer()
		x, y = self.window_to_buffer_coords(gtk.TEXT_WINDOW_TEXT, pointer_x,
			pointer_y)
		tags = self.get_iter_at_location(x, y).get_tags()
		if self.change_cursor:
			self.get_window(gtk.TEXT_WINDOW_TEXT).set_cursor(
				gtk.gdk.Cursor(gtk.gdk.XTERM))
			self.change_cursor = None
		tag_table = self.get_buffer().get_tag_table()
		over_line = False
		for tag in tags:
			if tag in (tag_table.lookup('url'), tag_table.lookup('mail')):
				self.get_window(gtk.TEXT_WINDOW_TEXT).set_cursor(
					gtk.gdk.Cursor(gtk.gdk.HAND2))
				self.change_cursor = tag
			elif tag == tag_table.lookup('focus-out-line'):
				over_line = True

		if self.line_tooltip.timeout != 0:
			# Check if we should hide the line tooltip
			if not over_line:
				self.line_tooltip.hide_tooltip()
		if over_line and not self.line_tooltip.win:
			self.line_tooltip.timeout = gobject.timeout_add(500,
				self.show_line_tooltip)
			self.get_window(gtk.TEXT_WINDOW_TEXT).set_cursor(
				gtk.gdk.Cursor(gtk.gdk.LEFT_PTR))
			self.change_cursor = tag

	def clear(self, tv = None):
		'''clear text in the textview'''
		buffer = self.get_buffer()
		start, end = buffer.get_bounds()
		buffer.delete(start, end)

	def visit_url_from_menuitem(self, widget, link):
		'''basically it filters out the widget instance'''
		helpers.launch_browser_mailer('url', link)

	def on_textview_populate_popup(self, textview, menu):
		'''we override the default context menu and we prepend Clear
		and if we have sth selected we show a submenu with actions on the phrase
		(see on_conversation_textview_button_press_event)'''
		item = gtk.SeparatorMenuItem()
		menu.prepend(item)
		item = gtk.ImageMenuItem(gtk.STOCK_CLEAR)
		menu.prepend(item)
		item.connect('activate', self.clear)
		if self.selected_phrase:
			s = self.selected_phrase
			if len(s) > 25:
				s = s[:21] + '...'
			item = gtk.MenuItem(_('Actions for "%s"') % s)
			menu.prepend(item)
			submenu = gtk.Menu()
			item.set_submenu(submenu)

			always_use_en = gajim.config.get('always_english_wikipedia')
			if always_use_en:
				link = 'http://en.wikipedia.org/wiki/Special:Search?search=%s'\
					% self.selected_phrase
			else:
				link = 'http://%s.wikipedia.org/wiki/Special:Search?search=%s'\
					% (gajim.LANG, self.selected_phrase)
			item = gtk.MenuItem(_('Read _Wikipedia Article'))
			item.connect('activate', self.visit_url_from_menuitem, link)
			submenu.append(item)

			item = gtk.MenuItem(_('Look it up in _Dictionary'))
			dict_link = gajim.config.get('dictionary_url')
			if dict_link == 'WIKTIONARY':
				# special link (yeah undocumented but default)
				always_use_en = gajim.config.get('always_english_wiktionary')
				if always_use_en:
					link = 'http://en.wiktionary.org/wiki/Special:Search?search=%s'\
						% self.selected_phrase
				else:
					link = 'http://%s.wiktionary.org/wiki/Special:Search?search=%s'\
						% (gajim.LANG, self.selected_phrase)
				item.connect('activate', self.visit_url_from_menuitem, link)
			else:
				if dict_link.find('%s') == -1:
					#we must have %s in the url if not WIKTIONARY
					item = gtk.MenuItem(_('Dictionary URL is missing an "%s" and it is not WIKTIONARY'))
					item.set_property('sensitive', False)
				else:
					link = dict_link % self.selected_phrase
					item.connect('activate', self.visit_url_from_menuitem, link)
			submenu.append(item)


			search_link = gajim.config.get('search_engine')
			if search_link.find('%s') == -1:
				#we must have %s in the url
				item = gtk.MenuItem(_('Web Search URL is missing an "%s"'))
				item.set_property('sensitive', False)
			else:
				item = gtk.MenuItem(_('Web _Search for it'))
				link =  search_link % self.selected_phrase
				item.connect('activate', self.visit_url_from_menuitem, link)
			submenu.append(item)

		menu.show_all()

	def on_textview_button_press_event(self, widget, event):
		# If we clicked on a taged text do NOT open the standard popup menu
		# if normal text check if we have sth selected

		self.selected_phrase = ''

		if event.button != 3: # if not right click
			return False

		win = self.get_window(gtk.TEXT_WINDOW_TEXT)
		x, y = self.window_to_buffer_coords(gtk.TEXT_WINDOW_TEXT,
			int(event.x), int(event.y))
		iter = self.get_iter_at_location(x, y)
		tags = iter.get_tags()


		if tags: # we clicked on sth special (it can be status message too)
			for tag in tags:
				tag_name = tag.get_property('name')
				if 'url' in tag_name or 'mail' in tag_name:
					return True # we block normal context menu

		# we check if sth was selected and if it was we assign
		# selected_phrase variable
		# so on_conversation_textview_populate_popup can use it
		buffer = self.get_buffer()
		return_val = buffer.get_selection_bounds()
		if return_val: # if sth was selected when we right-clicked
			# get the selected text
			start_sel, finish_sel = return_val[0], return_val[1]
			self.selected_phrase = buffer.get_text(start_sel, finish_sel).decode('utf-8')

	def on_open_link_activate(self, widget, kind, text):
		helpers.launch_browser_mailer(kind, text)

	def on_copy_link_activate(self, widget, text):
		clip = gtk.clipboard_get()
		clip.set_text(text)

	def on_start_chat_activate(self, widget, jid):
		gajim.interface.roster.new_chat_from_jid(self.account, jid)

	def on_join_group_chat_menuitem_activate(self, widget, jid):
		room, server = jid.split('@')
		if gajim.interface.instances[self.account].has_key('join_gc'):
			instance = gajim.interface.instances[self.account]['join_gc']
			instance.xml.get_widget('server_entry').set_text(server)
			instance.xml.get_widget('room_entry').set_text(room)
			gajim.interface.instances[self.account]['join_gc'].window.present()
		else:
			try:
				gajim.interface.instances[self.account]['join_gc'] = \
				dialogs.JoinGroupchatWindow(self.account, server, room)
			except RuntimeError:
				pass

	def on_add_to_roster_activate(self, widget, jid):
		dialogs.AddNewContactWindow(self.account, jid)

	def make_link_menu(self, event, kind, text):
		xml = gtk.glade.XML(GTKGUI_GLADE, 'chat_context_menu', APP)
		menu = xml.get_widget('chat_context_menu')
		childs = menu.get_children()
		if kind == 'url':
			childs[0].connect('activate', self.on_copy_link_activate, text)
			childs[1].connect('activate', self.on_open_link_activate, kind, text)
			childs[2].hide() # copy mail address
			childs[3].hide() # open mail composer
			childs[4].hide() # jid section seperator
			childs[5].hide() # start chat
			childs[6].hide() # join group chat
			childs[7].hide() # add to roster
		else: # It's a mail or a JID
			childs[2].connect('activate', self.on_copy_link_activate, text)
			childs[3].connect('activate', self.on_open_link_activate, kind, text)
			childs[5].connect('activate', self.on_start_chat_activate, text)
			childs[6].connect('activate',
				self.on_join_group_chat_menuitem_activate, text)

			allow_add = False
			c = gajim.contacts.get_first_contact_from_jid(self.account, text)
			if c and not gajim.contacts.is_pm_from_contact(self.account, c):
				if _('Not in Roster') in c.groups:
					allow_add = True
			else: # he or she's not at all in the account contacts
				allow_add = True

			if allow_add:
				childs[7].connect('activate', self.on_add_to_roster_activate, text)
				childs[7].show() # show add to roster menuitem
			else:
				childs[7].hide() # hide add to roster menuitem

			childs[0].hide() # copy link location
			childs[1].hide() # open link in browser

		menu.popup(None, None, None, event.button, event.time)

	def hyperlink_handler(self, texttag, widget, event, iter, kind):
		if event.type == gtk.gdk.BUTTON_PRESS:
			begin_iter = iter.copy()
			# we get the begining of the tag
			while not begin_iter.begins_tag(texttag):
				begin_iter.backward_char()
			end_iter = iter.copy()
			# we get the end of the tag
			while not end_iter.ends_tag(texttag):
				end_iter.forward_char()
			word = self.get_buffer().get_text(begin_iter, end_iter).decode('utf-8')
			if event.button == 3: # right click
				self.make_link_menu(event, kind, word)
			else:
				# we launch the correct application
				helpers.launch_browser_mailer(kind, word)

	def detect_and_print_special_text(self, otext, other_tags):
		'''detects special text (emots & links & formatting)
		prints normal text before any special text it founts,
		then print special text (that happens many times until
		last special text is printed) and then returns the index
		after *last* special text, so we can print it in
		print_conversation_line()'''

		buffer = self.get_buffer()

		start = 0
		end = 0
		index = 0

		# basic: links + mail + formatting is always checked (we like that)
		if gajim.config.get('emoticons_theme'): # search for emoticons & urls
			iterator = gajim.interface.emot_and_basic_re.finditer(otext)
		else: # search for just urls + mail + formatting
			iterator = gajim.interface.basic_pattern_re.finditer(otext)
		for match in iterator:
			start, end = match.span()
			special_text = otext[start:end]
			if start != 0:
				text_before_special_text = otext[index:start]
				end_iter = buffer.get_end_iter()
				# we insert normal text
				buffer.insert_with_tags_by_name(end_iter,
					text_before_special_text, *other_tags)
			index = end # update index

			# now print it
			self.print_special_text(special_text, other_tags)

		return index # the position after *last* special text

	def print_special_text(self, special_text, other_tags):
		'''is called by detect_and_print_special_text and prints
		special text (emots, links, formatting)'''
		tags = []
		use_other_tags = True
		show_ascii_formatting_chars = \
			gajim.config.get('show_ascii_formatting_chars')
		buffer = self.get_buffer()

		possible_emot_ascii_caps = special_text.upper() # emoticons keys are CAPS
		if gajim.config.get('emoticons_theme') and \
		possible_emot_ascii_caps in gajim.interface.emoticons.keys():
			#it's an emoticon
			emot_ascii = possible_emot_ascii_caps
			end_iter = buffer.get_end_iter()
			anchor = buffer.create_child_anchor(end_iter)
			img = gtk.Image()
			img.set_from_file(gajim.interface.emoticons[emot_ascii])
			img.show()
			#add with possible animation
			self.add_child_at_anchor(img, anchor)
		elif special_text.startswith('http://') or \
			special_text.startswith('www.') or \
			special_text.startswith('ftp://') or \
			special_text.startswith('ftp.') or \
			special_text.startswith('https://') or \
			special_text.startswith('gopher://') or \
			special_text.startswith('news://') or \
			special_text.startswith('ed2k://') or \
			special_text.startswith('irc://') or \
			special_text.startswith('sip:') or \
			special_text.startswith('magnet:'):
			#it's a url
			tags.append('url')
			use_other_tags = False
		elif special_text.startswith('mailto:'):
			#it's a mail
			tags.append('mail')
			use_other_tags = False
		elif gajim.interface.sth_at_sth_dot_sth_re.match(special_text):
			#it's a mail
			tags.append('mail')
			use_other_tags = False
		elif special_text.startswith('*'): # it's a bold text
			tags.append('bold')
			if special_text[1] == '/' and special_text[-2] == '/' and len(special_text) > 4: # it's also italic
				tags.append('italic')
				if not show_ascii_formatting_chars:
					special_text = special_text[2:-2] # remove */ /*
			elif special_text[1] == '_' and special_text[-2] == '_' and len(special_text) > 4: # it's also underlined
				tags.append('underline')
				if not show_ascii_formatting_chars:
					special_text = special_text[2:-2] # remove *_ _*
			else:
				if not show_ascii_formatting_chars:
					special_text = special_text[1:-1] # remove * *
		elif special_text.startswith('/'): # it's an italic text
			tags.append('italic')
			if special_text[1] == '*' and special_text[-2] == '*' and len(special_text) > 4: # it's also bold
				tags.append('bold')
				if not show_ascii_formatting_chars:
					special_text = special_text[2:-2] # remove /* */
			elif special_text[1] == '_' and special_text[-2] == '_' and len(special_text) > 4: # it's also underlined
				tags.append('underline')
				if not show_ascii_formatting_chars:
					special_text = special_text[2:-2] # remove /_ _/
			else:
				if not show_ascii_formatting_chars:
					special_text = special_text[1:-1] # remove / /
		elif special_text.startswith('_'): # it's an underlined text
			tags.append('underline')
			if special_text[1] == '*' and special_text[-2] == '*' and len(special_text) > 4: # it's also bold
				tags.append('bold')
				if not show_ascii_formatting_chars:
					special_text = special_text[2:-2] # remove _* *_
			elif special_text[1] == '/' and special_text[-2] == '/' and len(special_text) > 4: # it's also italic
				tags.append('italic')
				if not show_ascii_formatting_chars:
					special_text = special_text[2:-2] # remove _/ /_
			else:
				if not show_ascii_formatting_chars:
					special_text = special_text[1:-1] # remove _ _
		else:
			#it's a url
			tags.append('url')
			use_other_tags = False

		if len(tags) > 0:
			end_iter = buffer.get_end_iter()
			all_tags = tags[:]
			if use_other_tags:
				all_tags += other_tags
			buffer.insert_with_tags_by_name(end_iter, special_text, *all_tags)

	def print_empty_line(self):
		buffer = self.get_buffer()
		end_iter = buffer.get_end_iter()
		buffer.insert(end_iter, '\n')

	def print_conversation_line(self, text, jid, kind, name, tim,
			other_tags_for_name = [], other_tags_for_time = [],
			other_tags_for_text = [], subject = None):
		'''prints 'chat' type messages'''
		if kind == 'status' and not gajim.config.get('print_status_in_chats'):
				return
		# kind = info, we print things as if it was a status: same color, ...
		if kind == 'info':
			kind = 'status'
		buffer = self.get_buffer()
		buffer.begin_user_action()
		end_iter = buffer.get_end_iter()
		at_the_end = False
		if self.at_the_end():
			at_the_end = True

		if buffer.get_char_count() > 0:
			buffer.insert(end_iter, '\n')
		if kind == 'incoming_queue':
			kind = 'incoming'
		# print the time stamp
		if not tim:
			# We don't have tim for outgoing messages...
			tim = time.localtime()
		if gajim.config.get('print_time') == 'always':
			before_str = gajim.config.get('before_time')
			after_str = gajim.config.get('after_time')
			# get difference in days since epoch (86400 = 24*3600)
			# number of days since epoch for current time (in GMT) -
			# number of days since epoch for message (in GMT)
			diff_day = int(timegm(time.localtime())) / 86400 - int(timegm(tim)) / 86400
			if diff_day == 0:
				day_str = ''
			elif diff_day == 1:
				day_str = _('Yesterday')
			else:
				#the number is >= 2
				# %i is day in year (1-365), %d (1-31) we want %i
				day_str = _('%i days ago') % diff_day
			format = before_str
			if day_str:
				format += day_str + ' '
			format += '%X' + after_str
			tim_format = time.strftime(format, tim).decode(
				locale.getpreferredencoding())
			buffer.insert_with_tags_by_name(end_iter, tim_format + ' ',
				*other_tags_for_time)
		elif gajim.config.get('print_time') == 'sometimes':
			every_foo_seconds = 60 * gajim.config.get(
				'print_ichat_every_foo_minutes')
			seconds_passed = time.mktime(tim) - self.last_time_printout
			if seconds_passed > every_foo_seconds:
				self.last_time_printout = time.mktime(tim)
				end_iter = buffer.get_end_iter()
				tim_format = time.strftime('%H:%M', tim).decode(
					locale.getpreferredencoding())
				buffer.insert_with_tags_by_name(end_iter, tim_format + '\n',
					'time_sometimes')
		other_text_tag = self.detect_other_text_tag(text, kind)
		text_tags = other_tags_for_text[:] # create a new list
		if other_text_tag:
			text_tags.append(other_text_tag)
		else: # not status nor /me
			self.print_name(name, kind, other_tags_for_name)
		self.print_subject(subject)
		self.print_real_text(text, text_tags, name)

		# scroll to the end of the textview
		if at_the_end or kind == 'outgoing':
			# we are at the end or we are sending something
			# scroll to the end (via idle in case the scrollbar has appeared)
			gobject.idle_add(self.scroll_to_end)

		buffer.end_user_action()

	def detect_other_text_tag(self, text, kind):
		if kind == 'status':
			return kind
		elif text.startswith('/me ') or text.startswith('/me\n'):
			return kind

	def print_name(self, name, kind, other_tags_for_name):
		if name:
			buffer = self.get_buffer()
			end_iter = buffer.get_end_iter()
			name_tags = other_tags_for_name[:] # create a new list
			name_tags.append(kind)
			before_str = gajim.config.get('before_nickname')
			after_str = gajim.config.get('after_nickname')
			format = before_str + name + after_str + ' '
			buffer.insert_with_tags_by_name(end_iter, format, *name_tags)

	def print_subject(self, subject):
		if subject: # if we have subject, show it too!
			subject = _('Subject: %s\n') % subject
			buffer = self.get_buffer()
			end_iter = buffer.get_end_iter()
			buffer.insert(end_iter, subject)
			self.print_empty_line()

	def print_real_text(self, text, text_tags = [], name = None):
		'''this adds normal and special text. call this to add text'''
		buffer = self.get_buffer()
		# /me is replaced by name if name is given
		if name and text.startswith('/me ') or text.startswith('/me\n'):
			text = '* ' + name + text[3:]
		# detect urls formatting and if the user has it on emoticons
		index = self.detect_and_print_special_text(text, text_tags)

		# add the rest of text located in the index and after
		end_iter = buffer.get_end_iter()
		buffer.insert_with_tags_by_name(end_iter, text[index:], *text_tags)