sugar-toolkit-gtk3/sugar/chat/ChatEditor.py

import pygtk
pygtk.require('2.0')
import gtk

from sugar.chat.sketchpad.SketchPad import SketchPad
import richtext

class ChatEditor(gtk.HBox):
	TEXT_MODE = 0
	SKETCH_MODE = 1

	def __init__(self, chat, mode):
		gtk.HBox.__init__(self, False, 6)

		self._chat = chat

		self._notebook = gtk.Notebook()
		self._notebook.set_show_tabs(False)
		self._notebook.set_show_border(False)
		self._notebook.set_size_request(-1, 70)
	
		chat_view_sw = gtk.ScrolledWindow()
		chat_view_sw.set_shadow_type(gtk.SHADOW_IN)
		chat_view_sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
		self._text_view = richtext.RichTextView()
		self._text_view.connect("key-press-event", self.__key_press_event_cb)
		self._text_view.connect("button-press-event", self.__button_press_event_cb)
		chat_view_sw.add(self._text_view)
		self._text_view.show()
		
		self._notebook.append_page(chat_view_sw)
		chat_view_sw.show()
		
		self._sketchpad = SketchPad()
		self._notebook.append_page(self._sketchpad)
		self._sketchpad.show()
		
		self.pack_start(self._notebook)
		self._notebook.show()
		
		send_button = gtk.Button("Send")
		send_button.set_size_request(60, -1)
		send_button.connect('clicked', self.__send_button_clicked_cb)
		self.pack_start(send_button, False, True)
		send_button.show()
		
		self.set_mode(mode)

	def set_color(self, color):
		self._sketchpad.set_color(color)
		
	def get_buffer(self):
		return self._text_view.get_buffer()

	def set_mode(self, mode):
		self._mode = mode
		if self._mode == ChatEditor.SKETCH_MODE:
			self._notebook.set_current_page(1)
		elif self._mode == ChatEditor.TEXT_MODE:
			self._notebook.set_current_page(0)

	def __send_button_clicked_cb(self, button):
		self._send()

	def _send(self):
		if self._mode == ChatEditor.SKETCH_MODE:
			self._send_sketch()
		elif self._mode == ChatEditor.TEXT_MODE:
			self._send_text()

	def _send_sketch(self):
		self._chat.send_sketch(self._sketchpad.to_svg())
		self._sketchpad.clear()

	def _send_text(self):
		buf = self._text_view.get_buffer()
		text = buf.get_text(buf.get_start_iter(), buf.get_end_iter())
		if len(text.strip()) > 0:
			serializer = richtext.RichTextSerializer()
			text = serializer.serialize(buf)
			self._chat.send_text_message(text)

		buf.set_text("")
		buf.place_cursor(buf.get_start_iter())
			
	def __key_press_event_cb(self, text_view, event):
		if event.keyval == gtk.keysyms.Return:
			self._send()
			return True

	def __button_press_event_cb(self, text_view, event):
		# Need to explicitly get keyboard focus in the window
		# because docks doesn't take it by default.
		toplevel = text_view.get_toplevel()
		toplevel.window.focus()