Fetching command list from entity now works.

If the entity has at least one command exposed, it will be displayed as
a radio button. Other changes: run python interpreter without optimalizations,
otherwise asserts doesn't work. Names of widgets in the glade file were
changed a bit.

data/glade/adhoc_commands_window.glade

@@ -17,6 +17,7 @@
   <property name="type_hint">GDK_WINDOW_TYPE_HINT_NORMAL</property>
   <property name="gravity">GDK_GRAVITY_NORTH_WEST</property>
   <property name="focus_on_map">True</property>
+  <signal name="destroy" handler="on_adhoc_commands_window_destroy" last_modification_time="Thu, 22 Jun 2006 22:50:45 GMT"/>
 
   <child>
     <widget class="GtkVBox" id="vbox1">
@@ -26,7 +27,7 @@
       <property name="spacing">0</property>
 
       <child>
-	<widget class="GtkNotebook" id="mode_notebook">
+	<widget class="GtkNotebook" id="stages_notebook">
 	  <property name="visible">True</property>
 	  <property name="show_tabs">False</property>
 	  <property name="show_border">False</property>
@@ -35,7 +36,7 @@
 	  <property name="enable_popup">False</property>
 
 	  <child>
-	    <widget class="GtkVBox" id="vbox2">
+	    <widget class="GtkVBox" id="retrieving_commands_stage_vbox">
 	      <property name="visible">True</property>
 	      <property name="homogeneous">False</property>
 	      <property name="spacing">0</property>
@@ -114,7 +115,7 @@
 	  </child>
 
 	  <child>
-	    <widget class="GtkVBox" id="vbox5">
+	    <widget class="GtkVBox" id="command_list_stage_vbox">
 	      <property name="visible">True</property>
 	      <property name="homogeneous">False</property>
 	      <property name="spacing">0</property>
@@ -187,7 +188,7 @@
 	  </child>
 
 	  <child>
-	    <widget class="GtkVBox" id="vbox3">
+	    <widget class="GtkVBox" id="sending_form_stage_vbox">
 	      <property name="visible">True</property>
 	      <property name="homogeneous">False</property>
 	      <property name="spacing">0</property>
@@ -314,7 +315,27 @@
 	  </child>
 
 	  <child>
-	    <placeholder/>
+	    <widget class="GtkLabel" id="label257">
+	      <property name="visible">True</property>
+	      <property name="label" translatable="yes">An error has occured.</property>
+	      <property name="use_underline">False</property>
+	      <property name="use_markup">False</property>
+	      <property name="justify">GTK_JUSTIFY_LEFT</property>
+	      <property name="wrap">False</property>
+	      <property name="selectable">False</property>
+	      <property name="xalign">0.5</property>
+	      <property name="yalign">0.5</property>
+	      <property name="xpad">0</property>
+	      <property name="ypad">0</property>
+	      <property name="ellipsize">PANGO_ELLIPSIZE_NONE</property>
+	      <property name="width_chars">-1</property>
+	      <property name="single_line_mode">False</property>
+	      <property name="angle">0</property>
+	    </widget>
+	    <packing>
+	      <property name="tab_expand">False</property>
+	      <property name="tab_fill">True</property>
+	    </packing>
 	  </child>
 
 	  <child>

launch.sh

 #!/bin/sh
 cd `dirname $0`/src
-exec python -OOt gajim.py $@
+exec python -t gajim.py $@

src/adhoc_commands.py

@@ -19,9 +19,16 @@
 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 ## GNU General Public License for more details.
 
+# TODO: think if we need caching command list. it may be wrong if there will
+# TODO: be entities that often change the list, it may be slow to fetch it
+# TODO: every time
+
 import gobject
 import gtk
 
+import common.xmpp as xmpp
+import common.gajim as gajim
+
 import gtkgui_helpers
 
 class CommandWindow:
@@ -35,45 +42,158 @@ class CommandWindow:
 	def __init__(self, account, jid):
 		'''Create new window.'''
 
-		self.pulse_id=None	# to satisfy self..setup_pulsing()
+		# an account object
+		self.account = gajim.connections[account]
+		self.jid = jid
 
-		# connecting to handlers
+		self.pulse_id=None	# to satisfy self.setup_pulsing()
+		self.commandlist=None	# a list of (commandname, commanddescription)
 
 		# retrieving widgets from xml
 		self.xml = gtkgui_helpers.get_glade('adhoc_commands_window.glade')
 		self.window = self.xml.get_widget('adhoc_commands_window')
+		for name in ('cancel_button', 'back_button', 'forward_button',
+			'execute_button','stages_notebook',
+			'retrieving_commands_stage_vbox',
+			'command_list_stage_vbox','command_list_vbox',
+			'sending_form_stage_vbox'):
+			self.__dict__[name] = self.xml.get_widget(name)
 		
-		# setting initial state of widgets
-		self.setup_pulsing(self.xml.get_widget('retrieving_commands_progressbar'))
-
-		# invoking disco to find commands
+		# setting initial stage
+		self.stage1()
 
 		# displaying the window
 		self.xml.signal_autoconnect(self)
 		self.window.show_all()
 
+	def on_adhoc_commands_window_destroy(self, window):
+		''' The window dissappeared somehow... clean the environment,
+		Stop pulsing.'''
+		self.remove_pulsing()
+
+# these functions are set up by appropriate stageX methods
+	def stage_finish(self, *anything): pass
 	def on_cancel_button_clicked(self, *anything): pass
 	def on_back_button_clicked(self, *anything): pass
 	def on_forward_button_clicked(self, *anything): pass
 	def on_execute_button_clicked(self, *anything): pass
+	def on_adhoc_commands_window_destroy(self, *anything): pass
+
+# stage 1: waiting for command list
+	def stage1(self):
+		'''Prepare the first stage. Request command list,
+		set appropriate state of widgets.'''
+		# close old stage...
+		self.stage_finish()
+
+		# show the stage
+		self.stages_notebook.set_current_page(
+			self.stages_notebook.page_num(
+				self.retrieving_commands_stage_vbox))
+
+		# set widgets' state
+		self.cancel_button.set_sensitive(True)
+		self.back_button.set_sensitive(False)
+		self.forward_button.set_sensitive(False)
+		self.execute_button.set_sensitive(False)
+
+		# request command list
+		self.request_command_list()
+		self.setup_pulsing(
+			self.xml.get_widget('retrieving_commands_progressbar'))
+
+		# setup the callbacks
+		self.stage_finish = self.stage1_finish
+		self.on_cancel_button_clicked = self.stage1_on_cancel_button_clicked
+
+	def stage1_finish(self):
+		self.remove_pulsing()
+
+	def stage1_on_cancel_button_clicked(self, widget):
+		# cancelling in this stage is not critical, so we don't
+		# show any popups to user
+		self.stage1_finish()
+		self.window.destroy()
+
+# stage 2: choosing the command to execute
+	def stage2(self):
+		'''Populate the command list vbox with radiobuttons
+		(TODO: if there is more commands, maybe some kind of list?),
+		set widgets' state.'''
+		# close old stage
+		self.stage_finish()
 
+		assert len(self.commandlist)>0
+
+		self.stages_notebook.set_current_page(
+			self.stages_notebook.page_num(
+				self.command_list_stage_vbox))
+
+		self.cancel_button.set_sensitive(True)
+		self.back_button.set_sensitive(False)
+		self.forward_button.set_sensitive(True)
+		self.execute_button.set_sensitive(False)
+
+		# build the commands list radiobuttons
+		first_radio = None
+		for (commandnode, commandname) in self.commandlist:
+			radio = gtk.RadioButton(first_radio, label=commandname)
+			if first_radio is None: first_radio = radio
+			self.command_list_vbox.pack_end(radio, expand=False)
+		self.command_list_vbox.show_all()
+
+		self.stage_finish = self.stage_finish
+		self.on_cancel_button_clicked = self.stage2_on_cancel_button_clicked
+		self.on_forward_button_clicked = self.stage2_on_forward_button_clicked
+
+	def stage2_on_cancel_button_clicked(self):
+		self.stage_finish()
+		self.window.destroy()
+
+	def stage2_on_forward_button_clicked(self):
+		pass
+
+# helpers to handle pulsing in progressbar
 	def setup_pulsing(self, progressbar):
-		'''Useful to set the progressbar to pulse. Makes a custom
+		'''Set the progressbar to pulse. Makes a custom
 		function to repeatedly call progressbar.pulse() method.'''
 		assert self.pulse_id is None
-		assert isinstance(progressbar, Gtk.ProgressBar)
-		assert False
+		assert isinstance(progressbar, gtk.ProgressBar)
 
 		def callback():
 			progressbar.pulse()
 			return True	# important to keep callback be called back!
 
-		# 12 times per second (40 miliseconds)
+		# 12 times per second (80 miliseconds)
 		self.pulse_id = gobject.timeout_add(80, callback)
-		progressbar.pulse()	# start from now!
 
 	def remove_pulsing(self):
-		'''Useful to stop pulsing, especially when removing widget.'''
+		'''Stop pulsing, useful when especially when removing widget.'''
 		if self.pulse_id is not None:
 			gobject.source_remove(self.pulse_id)
 		self.pulse_id=None
+
+# handling xml stanzas
+	def request_command_list(self):
+		'''Request the command list. Change stage on delivery.'''
+		query = xmpp.Iq(typ='get', to=xmpp.JID(self.jid), xmlns=xmpp.NS_DISCO_ITEMS)
+		query.setQuerynode(xmpp.NS_COMMANDS)
+
+		def callback(response):
+			'''Called on response to query.'''
+			# is error => error stage
+			error = response.getError()
+			if error is not None:
+				pass
+
+			# no commands => no commands stage
+			# commands => command selection stage
+			items = response.getTag('query').getTags('item')
+			if len(items)==0:
+				self.commandlist = []
+				self.stage2() # stageX, where X is the number for error page
+			else:
+				self.commandlist = [(t.getAttr('node'), t.getAttr('name')) for t in items]
+				self.stage2()
+
+		self.account.connection.SendAndCallForResponse(query, callback)