##	tooltips.py
##
## Copyright (C) 2005-2006 Dimitur Kirov <dkirov@gmail.com>
## Copyright (C) 2005-2006 Nikos Kouremenos <kourem@gmail.com>
## Copyright (C) 2005-2006 Yann Le Boulanger <asterix@lagaule.org>
##
## 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 gobject
import os
import time
import locale

import gtkgui_helpers
import message_control

from common import gajim
from common import helpers
from common import i18n

class BaseTooltip:
	''' Base Tooltip class;
		Usage:
			tooltip = BaseTooltip()
			.... 
			tooltip.show_tooltip(data, widget_height, widget_y_position)
			....
			if tooltip.timeout != 0:
				tooltip.hide_tooltip()
		
		* data - the text to be displayed  (extenders override this argument and 
			display more complex contents)
		* widget_height  - the height of the widget on which we want to show tooltip
		* widget_y_position - the vertical position of the widget on the screen
		
		Tooltip is displayed aligned centered to the mouse poiner and 4px below the widget.
		In case tooltip goes below the visible area it is shown above the widget.
	'''
	def __init__(self):
		self.timeout = 0
		self.preferred_position = [0, 0]
		self.win = None
		self.id = None
		
	def populate(self, data):
		''' this method must be overriden by all extenders
		This is the most simple implementation: show data as value of a label
		'''
		self.create_window()
		self.win.add(gtk.Label(data))
		
	def create_window(self):
		''' create a popup window each time tooltip is requested '''
		self.win = gtk.Window(gtk.WINDOW_POPUP)
		self.win.set_border_width(3)
		self.win.set_resizable(False)
		self.win.set_name('gtk-tooltips')
		
		self.win.set_events(gtk.gdk.POINTER_MOTION_MASK)
		self.win.connect_after('expose_event', self.expose)
		self.win.connect('size-request', self.on_size_request)
		self.win.connect('motion-notify-event', self.motion_notify_event)
		self.screen = self.win.get_screen()
	
	def _get_icon_name_for_tooltip(self, contact):
		''' helper function used for tooltip contacts/acounts 
		Tooltip on account has fake contact with sub == '', in this case we show
		real status of the account
		'''
		if contact.ask == 'subscribe':
			return 'requested'
		elif contact.sub in ('both', 'to', ''):
			return contact.show
		return 'not in roster'

	def motion_notify_event(self, widget, event):
		self.hide_tooltip()

	def on_size_request(self, widget, requisition):
		half_width = requisition.width / 2 + 1
		if self.preferred_position[0] < half_width: 
			self.preferred_position[0] = 0
		elif self.preferred_position[0]  + requisition.width > \
			self.screen.get_width() + half_width:
			self.preferred_position[0] = self.screen.get_width() - \
				requisition.width
		else:
			self.preferred_position[0] -= half_width 
			self.screen.get_height()
		if self.preferred_position[1] + requisition.height > \
			self.screen.get_height():
			# flip tooltip up
			self.preferred_position[1] -= requisition.height  + \
				self.widget_height + 8
		if self.preferred_position[1] < 0:
			self.preferred_position[1] = 0
		self.win.move(self.preferred_position[0], self.preferred_position[1])

	def expose(self, widget, event):
		style = self.win.get_style()
		size = self.win.get_size()
		style.paint_flat_box(self.win.window, gtk.STATE_NORMAL, gtk.SHADOW_OUT,
			None, self.win, 'tooltip', 0, 0, -1, 1)
		style.paint_flat_box(self.win.window, gtk.STATE_NORMAL, gtk.SHADOW_OUT,
			None, self.win, 'tooltip', 0, size[1] - 1, -1, 1)
		style.paint_flat_box(self.win.window, gtk.STATE_NORMAL, gtk.SHADOW_OUT,
			None, self.win, 'tooltip', 0, 0, 1, -1)
		style.paint_flat_box(self.win.window, gtk.STATE_NORMAL, gtk.SHADOW_OUT,
			None, self.win, 'tooltip', size[0] - 1, 0, 1, -1)
		return True
	
	def show_tooltip(self, data, widget_height, widget_y_position):
		''' show tooltip on widget.
		data contains needed data for tooltip contents
		widget_height is the height of the widget on which we show the tooltip
		widget_y_position is vertical position of the widget on the screen
		'''
		# set tooltip contents 
		self.populate(data)
		
		# get the X position of mouse pointer on the screen
		pointer_x = self.screen.get_display().get_pointer()[1]
		
		# get the prefered X position of the tooltip on the screen in case this position is > 
		# than the height of the screen, tooltip will be shown above the widget
		preferred_y = widget_y_position + widget_height + 4
		
		self.preferred_position = [pointer_x, preferred_y]
		self.widget_height = widget_height
		self.win.ensure_style()
		self.win.show_all()

	def hide_tooltip(self):
		if self.timeout > 0:
			gobject.source_remove(self.timeout)
			self.timeout = 0
		if self.win:
			self.win.destroy()
			self.win = None
		self.id = None

class StatusTable:
	''' Contains methods for creating status table. This 
	is used in Roster and NotificationArea tooltips	'''
	def __init__(self):
		self.current_row = 1
		self.table = None
		self.text_label = None
		self.spacer_label = '   '
		
	def create_table(self):
		self.table = gtk.Table(4, 1)
		self.table.set_property('column-spacing', 2)
	
	def add_text_row(self, text):
		self.text_label = gtk.Label()
		self.text_label.set_line_wrap(True)
		self.text_label.set_alignment(0, 0)
		self.text_label.set_selectable(False)
		self.text_label.set_markup(text)
		self.table.attach(self.text_label, 1, 4, 1, 2)
		
	def get_status_info(self, resource, priority, show, status):
		str_status = resource + ' (' + unicode(priority) + ')'
		if status:
			status = status.strip()
			if status != '':
				# make sure 'status' is unicode before we send to to reduce_chars
				if isinstance(status, str):
					status = unicode(status, encoding='utf-8')
				# reduce to 100 chars, 1 line
				status = helpers.reduce_chars_newlines(status, 100, 1)
				str_status = gtkgui_helpers.escape_for_pango_markup(str_status)
				status = gtkgui_helpers.escape_for_pango_markup(status)
				str_status += ' - <i>' + status + '</i>'
		return str_status
	
	def add_status_row(self, file_path, show, str_status, status_time = None, show_lock = False):
		''' appends a new row with status icon to the table '''
		self.current_row += 1
		state_file = show.replace(' ', '_')
		files = []
		files.append(os.path.join(file_path, state_file + '.png'))
		files.append(os.path.join(file_path, state_file + '.gif'))
		image = gtk.Image()
		image.set_from_pixbuf(None)
		for file in files:
			if os.path.exists(file):
				image.set_from_file(file)
				break
		spacer = gtk.Label(self.spacer_label)
		image.set_alignment(1, 0.5)
		self.table.attach(spacer, 1, 2, self.current_row, 
			self.current_row + 1, 0, 0, 0, 0)
		self.table.attach(image, 2, 3, self.current_row, 
			self.current_row + 1, gtk.FILL, gtk.FILL, 2, 0)
		status_label = gtk.Label()
		status_label.set_markup(str_status)
		status_label.set_alignment(0, 0)
		status_label.set_line_wrap(True)
		self.table.attach(status_label, 3, 4, self.current_row,
			self.current_row + 1, gtk.FILL | gtk.EXPAND, 0, 0, 0)
		if show_lock:
			lock_image = gtk.Image()
			lock_image.set_from_stock(gtk.STOCK_DIALOG_AUTHENTICATION, 
				gtk.ICON_SIZE_MENU)
			self.table.attach(lock_image, 4, 5, self.current_row,
				self.current_row + 1, 0, 0, 0, 0)
	
class NotificationAreaTooltip(BaseTooltip, StatusTable):
	''' Tooltip that is shown in the notification area '''
	def __init__(self):
		BaseTooltip.__init__(self)
		StatusTable.__init__(self)

	def fill_table_with_accounts(self, accounts):
		iconset = gajim.config.get('iconset')
		if not iconset:
			iconset = 'dcraven'
		file_path = os.path.join(gajim.DATA_DIR, 'iconsets', iconset, '16x16')
		for acct in accounts:
			message = acct['message']
			# before reducing the chars we should assure we send unicode, else 
			# there are possible pango TBs on 'set_markup'
			if isinstance(message, str):
				message = unicode(message, encoding = 'utf-8')
			message = helpers.reduce_chars_newlines(message, 100, 1)
			message = gtkgui_helpers.escape_for_pango_markup(message)
			if gajim.con_types.has_key(acct['name']) and \
				gajim.con_types[acct['name']] in ('tls', 'ssl'):
				show_lock = True
			else:
				show_lock = False
			if message:
				self.add_status_row(file_path, acct['show'], 
					gtkgui_helpers.escape_for_pango_markup(acct['name']) + \
					' - ' + message, show_lock=show_lock)
			else:
				self.add_status_row(file_path, acct['show'], 
					gtkgui_helpers.escape_for_pango_markup(acct['name']) 
					, show_lock=show_lock)

	def populate(self, data):
		self.create_window()
		self.create_table()
		accounts = helpers.get_accounts_info()
		if len(accounts) > 1:
			self.table.resize(2, 1)
			self.fill_table_with_accounts(accounts)
		self.hbox = gtk.HBox()
		self.table.set_property('column-spacing', 1)

		text = helpers.get_notification_icon_tooltip_text()
		text = gtkgui_helpers.escape_for_pango_markup(text)
		
		self.add_text_row(text)
		self.hbox.add(self.table)
		self.win.add(self.hbox)

class GCTooltip(BaseTooltip):
	''' Tooltip that is shown in the GC treeview '''
	def __init__(self):
		self.account = None
		self.text_label = gtk.Label()
		self.text_label.set_line_wrap(True)
		self.text_label.set_alignment(0, 0)
		self.text_label.set_selectable(False)
		self.avatar_image = gtk.Image()

		BaseTooltip.__init__(self)
		
	def populate(self, contact):
		if not contact:
			return
		self.create_window()
		vcard_table = gtk.Table(3, 1)
		vcard_table.set_property('column-spacing', 2)
		vcard_table.set_homogeneous(False)
		vcard_current_row = 1
		properties = []

		nick_markup = '<b>' + \
			gtkgui_helpers.escape_for_pango_markup(contact.get_shown_name()) \
			+ '</b>' 
		properties.append((nick_markup, None))

		if contact.status: # status message 
			status = contact.status.strip()
			if status != '':
				# escape markup entities
				status = helpers.reduce_chars_newlines(status, 100, 5)
				status = '<i>' +\
					 gtkgui_helpers.escape_for_pango_markup(status) + '</i>'
				properties.append((status, None))
		else: # no status message, show SHOW instead
			show = helpers.get_uf_show(contact.show)
			show = '<i>' + show + '</i>'
			properties.append((show, None))

		if contact.jid.strip() != '':
			properties.append((_('JID: '), contact.jid))

		if hasattr(contact, 'resource') and contact.resource.strip() != '':
			properties.append((_('Resource: '), 
				gtkgui_helpers.escape_for_pango_markup(contact.resource) ))
		if contact.affiliation != 'none':
			uf_affiliation = helpers.get_uf_affiliation(contact.affiliation)
			affiliation_str = \
				_('%(owner_or_admin_or_member)s of this group chat') %\
				{'owner_or_admin_or_member': uf_affiliation}
			properties.append((affiliation_str, None))
		
		# Add avatar
		puny_name = helpers.sanitize_filename(contact.name)
		puny_room = helpers.sanitize_filename(contact.room_jid)
		for type_ in ('jpeg', 'png'):
			file = os.path.join(gajim.AVATAR_PATH, puny_room,
				puny_name + '.' + type_)
			if os.path.exists(file):
				self.avatar_image.set_from_file(file)
				pix = self.avatar_image.get_pixbuf()
				pix = gtkgui_helpers.get_scaled_pixbuf(pix, 'tooltip')
				self.avatar_image.set_from_pixbuf(pix)
				break
		else:
			self.avatar_image.set_from_pixbuf(None)
		while properties:
			property = properties.pop(0)
			vcard_current_row += 1
			vertical_fill = gtk.FILL
			if not properties:
				vertical_fill |= gtk.EXPAND
			label = gtk.Label()
			label.set_alignment(0, 0)
			if property[1]:
				label.set_markup(property[0])
				vcard_table.attach(label, 1, 2, vcard_current_row,
					vcard_current_row + 1, gtk.FILL, vertical_fill, 0, 0)
				label = gtk.Label()
				label.set_alignment(0, 0)
				label.set_markup(property[1])
				label.set_line_wrap(True)
				vcard_table.attach(label, 2, 3, vcard_current_row,
					vcard_current_row + 1, gtk.EXPAND | gtk.FILL,
					vertical_fill, 0, 0)
			else:
				label.set_markup(property[0])
				vcard_table.attach(label, 1, 3, vcard_current_row,
					vcard_current_row + 1, gtk.FILL, vertical_fill, 0)
		
		self.avatar_image.set_alignment(0, 0)
		vcard_table.attach(self.avatar_image, 3, 4, 2, vcard_current_row + 1, 
			gtk.FILL, gtk.FILL | gtk.EXPAND, 3, 3)
		self.win.add(vcard_table)

class RosterTooltip(NotificationAreaTooltip):
	''' Tooltip that is shown in the roster treeview '''
	def __init__(self):
		self.account = None
		self.image = gtk.Image()
		self.image.set_alignment(0, 0)
		# padding is independent of the total length and better than alignment
		self.image.set_padding(1, 2) 
		self.avatar_image = gtk.Image()
		NotificationAreaTooltip.__init__(self)

	def populate(self, contacts):
		self.create_window()
		
		self.create_table()
		if not contacts or len(contacts) == 0:
			# Tooltip for merged accounts row
			accounts = helpers.get_accounts_info()
			self.table.resize(2, 1)
			self.spacer_label = ''
			self.fill_table_with_accounts(accounts)
			self.win.add(self.table)
			return
		
		
		# primary contact
		prim_contact = gajim.contacts.get_highest_prio_contact_from_contacts(
			contacts)
		
		puny_jid = helpers.sanitize_filename(prim_contact.jid)
		table_size = 3
		
		for type_ in ('jpeg', 'png'):
			file = os.path.join(gajim.AVATAR_PATH, puny_jid + '.' + type_)
			if os.path.exists(file):
				self.avatar_image.set_from_file(file)
				pix = self.avatar_image.get_pixbuf()
				pix = gtkgui_helpers.get_scaled_pixbuf(pix, 'tooltip')
				self.avatar_image.set_from_pixbuf(pix)
				table_size = 4
				break
		else:
			self.avatar_image.set_from_pixbuf(None)
		vcard_table = gtk.Table(table_size, 1)
		vcard_table.set_property('column-spacing', 2)
		vcard_table.set_homogeneous(False)
		vcard_current_row = 1
		properties = []

		name_markup = u'<span weight="bold">' + \
			gtkgui_helpers.escape_for_pango_markup(prim_contact.get_shown_name())\
			+ '</span>'
		properties.append((name_markup, None))
		
		num_resources = 0
		# put contacts in dict, where key is priority
		contacts_dict = {}
		for contact in contacts:
			if contact.resource:
				num_resources += 1
				if contact.priority in contacts_dict:
					contacts_dict[contact.priority].append(contact)
				else:
					contacts_dict[contact.priority] = [contact]

		if num_resources > 1:
			properties.append((_('Status: '),	' '))
			transport = gajim.get_transport_name_from_jid(
				prim_contact.jid)
			if transport:
				file_path = os.path.join(gajim.DATA_DIR, 'iconsets', 
					'transports', transport , '16x16')
			else:
				iconset = gajim.config.get('iconset')
				if not iconset:
					iconset = 'dcraven'
				file_path = os.path.join(gajim.DATA_DIR,
					'iconsets', iconset, '16x16')

			contact_keys = contacts_dict.keys()
			contact_keys.sort()
			contact_keys.reverse()
			for priority in contact_keys:
				for contact in contacts_dict[priority]:
					status_line = self.get_status_info(contact.resource,
						contact.priority, contact.show, contact.status)
					
					icon_name = self._get_icon_name_for_tooltip(contact)
					self.add_status_row(file_path, icon_name, status_line,
						contact.last_status_time)
			properties.append((self.table,	None))
		else: # only one resource
			if contact.show:
				show = helpers.get_uf_show(contact.show) 
				if contact.last_status_time:
					vcard_current_row += 1
					if contact.show == 'offline':
						text = ' - ' + _('Last status: %s')
					else:
						text = _(' since %s')
					
					if time.strftime('%j', time.localtime())== \
							time.strftime('%j', contact.last_status_time):
					# it's today, show only the locale hour representation
						# FIXME : last_status_time is UTC but _we_ may not be
						local_time = time.strftime('%X',
							contact.last_status_time)
					else:
						# time.strftime returns locale encoded string
						local_time = time.strftime('%c',
							contact.last_status_time)
					local_time = local_time.decode(
						locale.getpreferredencoding())
					text = text % local_time 
					show += text
				show = '<i>' + show + '</i>'
				# we append show below
				
				if contact.status:
					status = contact.status.strip()
					if status:
						# reduce long status
						# (no more than 100 chars on line and no more than 5 lines)
						status = helpers.reduce_chars_newlines(status, 100, 5)
						# escape markup entities. 
						status = gtkgui_helpers.escape_for_pango_markup(status)
						properties.append(('<i>%s</i>' % status, None))
				properties.append((show, None))
		
		properties.append((_('Jabber ID: '), prim_contact.jid ))

		# contact has only one ressource
		if num_resources == 1 and contact.resource:
			properties.append((_('Resource: '),
				gtkgui_helpers.escape_for_pango_markup(contact.resource) +\
				' (' + unicode(contact.priority) + ')'))
		
		if prim_contact.sub and prim_contact.sub != 'both':
			# ('both' is the normal sub so we don't show it)
			properties.append(( _('Subscription: '), 
				gtkgui_helpers.escape_for_pango_markup(helpers.get_uf_sub(prim_contact.sub))))
	
		if prim_contact.keyID:
			keyID = None
			if len(prim_contact.keyID) == 8:
				keyID = prim_contact.keyID
			elif len(prim_contact.keyID) == 16:
				keyID = prim_contact.keyID[8:]
			if keyID:
				properties.append((_('OpenPGP: '),
					gtkgui_helpers.escape_for_pango_markup(keyID)))
		
		while properties:
			property = properties.pop(0)
			vcard_current_row += 1
			vertical_fill = gtk.FILL
			if not properties and table_size == 4:
				vertical_fill |= gtk.EXPAND
			label = gtk.Label()
			label.set_alignment(0, 0)
			if property[1]:
				label.set_markup(property[0])
				vcard_table.attach(label, 1, 2, vcard_current_row,
					vcard_current_row + 1, gtk.FILL,  vertical_fill, 0, 0)
				label = gtk.Label()
				label.set_alignment(0, 0)
				label.set_markup(property[1])
				label.set_line_wrap(True)
				vcard_table.attach(label, 2, 3, vcard_current_row,
					vcard_current_row + 1, gtk.EXPAND | gtk.FILL,
						vertical_fill, 0, 0)
			else:
				if isinstance(property[0], (unicode, str)): #FIXME: rm unicode?
					label.set_markup(property[0])
				else:
					label = property[0]
				vcard_table.attach(label, 1, 3, vcard_current_row,
					vcard_current_row + 1, gtk.FILL, vertical_fill, 0)
		self.avatar_image.set_alignment(0, 0)
		if table_size == 4:
			vcard_table.attach(self.avatar_image, 3, 4, 2,
				vcard_current_row + 1, gtk.FILL, gtk.FILL | gtk.EXPAND, 3, 3)
		self.win.add(vcard_table)

class FileTransfersTooltip(BaseTooltip):
	''' Tooltip that is shown in the notification area '''
	def __init__(self):
		BaseTooltip.__init__(self)

	def populate(self, file_props):
		ft_table = gtk.Table(2, 1)
		ft_table.set_property('column-spacing', 2)
		current_row = 1
		self.create_window()
		properties = []
		name = file_props['name']
		if file_props['type'] == 'r':
			(file_path, file_name) = os.path.split(file_props['file-name'])
		else:
			file_name = file_props['name']
		properties.append((_('Name: '), 
			gtkgui_helpers.escape_for_pango_markup(file_name)))
		if file_props['type'] == 'r':
			type =  _('Download')
			actor = _('Sender: ') 
			sender = unicode(file_props['sender']).split('/')[0]
			name = gajim.contacts.get_first_contact_from_jid( 
				file_props['tt_account'], sender).get_shown_name()
		else:
			type = _('Upload')
			actor = _('Recipient: ')
			receiver = file_props['receiver']
			if hasattr(receiver, 'name'):
				name = receiver.get_shown_name()
			else:
				name = receiver.split('/')[0]
		properties.append((_('Type: '), type))
		properties.append((actor, gtkgui_helpers.escape_for_pango_markup(name)))
		
		transfered_len = 0
		if file_props.has_key('received-len'):
			transfered_len = file_props['received-len']
		properties.append((_('Transferred: '), helpers.convert_bytes(transfered_len)))
		status = '' 
		if not file_props.has_key('started') or not file_props['started']:
			status =  _('Not started')
		elif file_props.has_key('connected'):
			if file_props.has_key('stopped') and \
				file_props['stopped'] == True:
				status = _('Stopped')
			elif file_props['completed']:
					status = _('Completed')
			elif file_props['connected'] == False:
				if file_props['completed']:
					status = _('Completed')
			else:
				if file_props.has_key('paused') and  \
					file_props['paused'] == True:
					status = _('Paused')
				elif file_props.has_key('stalled') and \
					file_props['stalled'] == True:
					#stalled is not paused. it is like 'frozen' it stopped alone
					status = _('Stalled')
				else:
					status = _('Transferring')
		else:
			status =  _('Not started')
		properties.append((_('Status: '), status))
		while properties:
			property = properties.pop(0)
			current_row += 1
			label = gtk.Label()
			label.set_alignment(0, 0)
			label.set_markup(property[0])
			ft_table.attach(label, 1, 2, current_row, current_row + 1, 
																gtk.FILL,  gtk.FILL, 0, 0)
			label = gtk.Label()
			label.set_alignment(0, 0)
			label.set_line_wrap(True)
			label.set_markup(property[1])
			ft_table.attach(label, 2, 3, current_row, current_row + 1, 
											gtk.EXPAND | gtk.FILL, gtk.FILL, 0, 0)
		
		self.win.add(ft_table)


class ServiceDiscoveryTooltip(BaseTooltip):
	''' Tooltip that is shown when hovering over a service discovery row '''
	def populate(self, status):
		self.create_window()
		label = gtk.Label()
		label.set_line_wrap(True)
		label.set_alignment(0, 0)
		label.set_selectable(False)
		if status == 1:
			label.set_text(
				_('This service has not yet responded with detailed information'))
		elif status == 2:
			label.set_text(
				_('This service could not respond with detailed information.\n'
				'It is most likely legacy or broken'))
		self.win.add(label)