Only allow using XHTML if the receiver supports it.

src/chat_control.py

@@ -49,8 +49,8 @@ from common.contacts import GC_Contact
 from common.logger import Constants
 constants = Constants()
 from common.pep import MOODS, ACTIVITIES
-from common.xmpp.protocol import NS_XHTML, NS_FILE, NS_MUC, NS_RECEIPTS
-from common.xmpp.protocol import NS_ESESSION
+from common.xmpp.protocol import NS_XHTML, NS_XHTML_IM, NS_FILE, NS_MUC
+from common.xmpp.protocol import NS_RECEIPTS, NS_ESESSION
 
 try:
 	import gtkspell
@@ -1061,13 +1061,18 @@ class ChatControlBase(MessageControl):
 	def got_connected(self):
 		self.msg_textview.set_sensitive(True)
 		self.msg_textview.set_editable(True)
+		# FIXME: This seems wrong. What if we have caps?
+		self.xml.get_widget('formattings_button').set_sensitive(True)
 		self.xml.get_widget('send_button').set_sensitive(True)
+		self.xml.get_widget('convert_to_gc_button').set_sensitive(True)
 
 	def got_disconnected(self):
 		self.msg_textview.set_sensitive(False)
 		self.msg_textview.set_editable(False)
 		self.conv_textview.tv.grab_focus()
+		self.xml.get_widget('formattings_button').set_sensitive(False)
 		self.xml.get_widget('send_button').set_sensitive(False)
+		self.xml.get_widget('convert_to_gc_button').set_sensitive(False)
 
 ################################################################################
 class ChatControl(ChatControlBase):
@@ -1086,6 +1091,8 @@ class ChatControl(ChatControlBase):
 		id = self.actions_button.connect('clicked', self.on_actions_button_clicked)
 		self.handlers[id] = self.actions_button
 
+		self._formattings_button = self.xml.get_widget('formattings_button')
+
 		self._add_to_roster_button = self.xml.get_widget(
 			'add_to_roster_button')
 		id = self._add_to_roster_button.connect('clicked',
@@ -1232,6 +1239,12 @@ class ChatControl(ChatControlBase):
 		self.msg_textview.grab_focus()
 
 	def update_toolbar(self):
+		# Formatting
+		if gajim.capscache.is_supported(self.contact, NS_XHTML_IM):
+			self._formattings_button.set_sensitive(True)
+		else:
+			self._formattings_button.set_sensitive(False)
+
 		# Add to roster
 		if not isinstance(self.contact, GC_Contact) \
 		and _('Not in Roster') in self.contact.groups: