sugar-toolkit-gtk3/browser/browser.py

#!/usr/bin/env python

import dbus
import dbus.service
import dbus.glib

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

import geckoembed

################################################################################
# Code below will be moved to a module someday

class Activity(dbus.service.Object):

	def __init__(self):
		pass

	def name_owner_changed(self, service_name, old_service_name, new_service_name):
		#print "in name_owner_changed: svc=%s oldsvc=%s newsvc=%s"%(service_name, old_service_name, new_service_name)
		if service_name == "com.redhat.Sugar.Shell" and new_service_name == "":
			self.activity_on_disconnected_from_shell()
		#elif service_name == "com.redhat.Sugar.Shell" and old_service_name == "":
		#	self.activity_on_shell_reappeared()

	def activity_connect_to_shell(self):
		self.__bus = dbus.SessionBus()

		self.__bus.add_signal_receiver(self.name_owner_changed, dbus_interface = "org.freedesktop.DBus", signal_name = "NameOwnerChanged")

		self.__activity_container_object = self.__bus.get_object("com.redhat.Sugar.Shell", \
															   "/com/redhat/Sugar/Shell/ActivityContainer")
		self.__activity_container = dbus.Interface(self.__activity_container_object, \
												   "com.redhat.Sugar.Shell.ActivityContainer")

		self.__activity_id = self.__activity_container.add_activity("")
		self.__object_path = "/com/redhat/Sugar/Shell/Activities/%d"%self.__activity_id

		print "object_path = %s"%self.__object_path

		self.__activity_object = dbus.Interface(self.__bus.get_object("com.redhat.Sugar.Shell", self.__object_path), \
											  "com.redhat.Sugar.Shell.ActivityHost")
		self.__window_id = self.__activity_object.get_host_xembed_id()

		print "XEMBED window_id = %d"%self.__window_id

		self.__plug = gtk.Plug(self.__window_id)

		# Now let the Activity register a peer service so the Shell can poke it
		self.__peer_service_name = "com.redhat.Sugar.Activity%d"%self.__activity_id
		self.__peer_object_name = "/com/redhat/Sugar/Activity/%d"%self.__activity_id
		self.__service = dbus.service.BusName(self.__peer_service_name, bus=self.__bus)
		dbus.service.Object.__init__(self, self.__service, self.__peer_object_name)

		self.__activity_object.set_peer_service_name(self.__peer_service_name, self.__peer_object_name)

		self.activity_on_connected_to_shell()

	def activity_get_gtk_plug(self):
		return self.__plug

	def activity_set_can_close(self, can_close):
		self.__activity_object.set_can_close(can_close)

	@dbus.service.method("com.redhat.Sugar.Activity", \
						 in_signature="", \
						 out_signature="")

	def activity_set_tab_text(self, text):
		self.__activity_object.set_tab_text(text)

	@dbus.service.method("com.redhat.Sugar.Activity", \
						 in_signature="", \
						 out_signature="")
	def lost_focus(self):
		self.activity_on_lost_focus()

	@dbus.service.method("com.redhat.Sugar.Activity", \
						 in_signature="", \
						 out_signature="")
	def got_focus(self):
		self.activity_on_got_focus()


	@dbus.service.method("com.redhat.Sugar.Activity", \
						 in_signature="", \
						 out_signature="")
	def close_from_user(self):
		self.activity_on_close_from_user()

	def activity_get_id(self):
		return self.__activity_id


	def __shutdown_reply_cb(self):
		print "in __reply_cb"

		self.__plug.destroy()
		self.__plug = None

		self.__bus = None
		self.__activity_container_object = None
		self.__activity_container = None
		self.__activity_object = None
		self.__service = None

		self.__bus.remove_signal_receiver(self.name_owner_changed, dbus_interface = "org.freedesktop.DBus", signal_name = "NameOwnerChanged")

		self.activity_on_disconnected_from_shell()


		del self



	def __shutdown_error_cb(self, error):
		print "in __error_cb"

	def activity_shutdown(self):
		self.__activity_object.shutdown(reply_handler = self.__shutdown_reply_cb, error_handler = self.__shutdown_error_cb)

	# pure virtual methods

	def activity_on_connected_to_shell(self):
		print "act %d: you need to override activity_on_connected_to_shell"%self.activity_get_id()

	def activity_on_disconnected_from_shell(self):
		print "act %d: you need to override activity_on_disconnected_from_shell"%self.activity_get_id()

	def activity_on_close_from_user(self):
		print "act %d: you need to override activity_on_close_from_user"%self.activity_get_id()

	def activity_on_lost_focus(self):
		print "act %d: you need to override activity_on_lost_focus"%self.activity_get_id()

	def activity_on_got_focus(self):
		print "act %d: you need to override activity_on_got_focus"%self.activity_get_id()

def my_exit():
	sys.exit(0)

def deferred_exit():
	gobject.timeout_add(0, my_exit)

################################################################################

class AddressToolbar(gtk.Toolbar):
	def __init__(self):
		gtk.Toolbar.__init__(self)

		address_item = AddressItem(self.__open_address_cb)		
		self.insert(address_item, 0)
		address_item.show()

	def __open_address_cb(self, address):
		browser = BrowserActivity(address)
		browser.activity_connect_to_shell()

class AddressItem(gtk.ToolItem):
	def __init__(self, callback):
		gtk.ToolItem.__init__(self)
	
		address_entry = AddressEntry(callback)
		self.add(address_entry)
		address_entry.show()

class AddressEntry(gtk.HBox):
	def __init__(self, callback):
		gtk.HBox.__init__(self)

		self.callback = callback
		self.folded = True
		
		label = gtk.Label("Open")
		self.pack_start(label, False)
		label.show()
		
		self.button = gtk.Button()
		self.button.set_relief(gtk.RELIEF_NONE)
		self.button.connect("clicked", self.__button_clicked_cb)
		self.pack_start(self.button, False)
		self.button.show()
		
		self.entry = gtk.Entry()
		self.entry.connect("activate", self.__activate_cb)
		self.pack_start(self.entry, False)
		self.entry.show()

		self._update_folded_state()
	
	def _update_folded_state(self):
		if self.folded:
			image = gtk.Image()
			image.set_from_file("unfold.png")
			self.button.set_image(image)
			image.show()

			self.entry.hide()
		else:
			image = gtk.Image()
			image.set_from_file("fold.png")
			self.button.set_image(image)
			image.show()

			self.entry.show()
			self.entry.grab_focus()
	
	def get_folded(self):
		return self.folded
	
	def set_folded(self, folded):
		self.folded = not self.folded
		self._update_folded_state()		
	
	def __button_clicked_cb(self, button):
		self.set_folded(not self.get_folded())

	def __activate_cb(self, entry):
		self.callback(entry.get_text())
		self.set_folded(True)

class NavigationToolbar(gtk.Toolbar):
	def __init__(self, embed):
		gtk.Toolbar.__init__(self)
		self.embed = embed
		
		self.set_style(gtk.TOOLBAR_ICONS)
		
		self.back = gtk.ToolButton(gtk.STOCK_GO_BACK)
		self.back.connect("clicked", self.__go_back_cb)
		self.insert(self.back, -1)
		self.back.show()

		self.forward = gtk.ToolButton(gtk.STOCK_GO_FORWARD)
		self.forward.connect("clicked", self.__go_forward_cb)
		self.insert(self.forward, -1)
		self.forward.show()

		self.reload = gtk.ToolButton(gtk.STOCK_REFRESH)
		self.reload.connect("clicked", self.__reload_cb)
		self.insert(self.reload, -1)
		self.reload.show()

		separator = gtk.SeparatorToolItem()
		self.insert(separator, -1)
		separator.show()
		
		address_item = AddressItem(self.__open_address_cb)		
		self.insert(address_item, -1)
		address_item.show()

		self._update_sensitivity()

		self.embed.connect("location", self.__location_changed)

	def _update_sensitivity(self):
		self.back.set_sensitive(self.embed.can_go_back())
		self.forward.set_sensitive(self.embed.can_go_forward())
		
	def __go_back_cb(self, button):
		self.embed.go_back()
	
	def __go_forward_cb(self, button):
		self.embed.go_forward()
		
	def __reload_cb(self, button):
		self.embed.reload()
		
	def __location_changed(self, embed):
		self._update_sensitivity()

	def __open_address_cb(self, address):
		self.embed.load_url(address)
		
class BrowserActivity(Activity):
	def __init__(self, uri):
		Activity.__init__(self)
		self.uri = uri
	
	def activity_on_connected_to_shell(self):
		self.activity_set_can_close(True)
		self.activity_set_tab_text("Web Page")

		vbox = gtk.VBox()

		self.embed = geckoembed.Embed()
		self.embed.connect("title", self.__title_cb)
		vbox.pack_start(self.embed)
		
		self.embed.show()
		self.embed.load_url(self.uri)
		
		nav_toolbar = NavigationToolbar(self.embed)
		vbox.pack_start(nav_toolbar, False)
		nav_toolbar.show()

		plug = self.activity_get_gtk_plug()		
		plug.add(vbox)
		plug.show()

		vbox.show()
		
	def __title_cb(self, embed):
		self.activity_set_tab_text(embed.get_title())

	def activity_on_close_from_user(self):
		self.activity_shutdown()

class WebActivity(Activity):
	def __init__(self):
		Activity.__init__(self)
	
	def activity_on_connected_to_shell(self):
		self.activity_set_tab_text("Web Browser")

		vbox = gtk.VBox()
			
		self.embed = geckoembed.Embed()
		self.embed.connect("open-address", self.__open_address);		
		vbox.pack_start(self.embed)
		self.embed.show()

		address_toolbar = AddressToolbar()
		vbox.pack_start(address_toolbar, False)
		address_toolbar.show()
		
		plug = self.activity_get_gtk_plug()		
		plug.add(vbox)
		plug.show()

		vbox.show()
		
		self.embed.load_url("http://www.google.com")
		
	def __open_address(self, embed, uri, data=None):
		if uri.startswith("http://www.google.com"):
			return False
		else:
			browser = BrowserActivity(uri)
			browser.activity_connect_to_shell()
			return True

web_activity = WebActivity()
web_activity.activity_connect_to_shell()
gtk.main()