primitivus card_game: bug fix and improvement

- changeset 56f8a9c99194 introduced a bug because it connected all the list widgets to the parameter change callback. This is not OK because the Tarot is using a list form that is not a parameter.
- some list processing was raising an error when the data is not initialized
- display the "choose contrat" dialog with valign='top' to allow the user see his hand while taking the decision.

frontends/src/primitivus/card_game.py

@@ -109,9 +109,12 @@ class Hand(urwid.WidgetWrap):
     def update(self, hand):
         """Update the hand displayed in this widget
         @param hand: list of Card"""
-        del self.columns.widget_list[:]
-        del self.columns.column_types[:]
-        self.columns.contents.append((urwid.Text(''),('weight',1, False)))
+        try:
+            del self.columns.widget_list[:]
+            del self.columns.column_types[:]
+        except IndexError:
+            pass
+        self.columns.contents.append((urwid.Text(''), ('weight', 1, False)))
         for card in hand:
             widget = CardDisplayer(card)
             self.columns.widget_list.append(widget)
@@ -260,7 +263,7 @@ class CardGame(QuickCardGame, urwid.WidgetWrap):
         @param xml_data: SàT xml representation of the form"""
         misc = {'callback': self.contratSelected}
         form = XMLUI(self.parent.host, xml_data, title=_('Please choose your contrat'), options=['NO_CANCEL'], misc=misc)
-        form.show()
+        form.show(valign='top')
 
     def showCards(self, game_stage, cards, data):
         """Display cards in the middle of the game (to show for e.g. chien ou poignée)"""

frontends/src/primitivus/primitivus

@@ -321,10 +321,10 @@ class PrimitivusApp(QuickApp, InputHistory):
             #we still have popup to show, we display it
             self.showPopUp(next_popup)
 
-    def showPopUp(self, pop_up_widget, perc_width=40, perc_height=40):
+    def showPopUp(self, pop_up_widget, perc_width=40, perc_height=40, valign='middle'):
         "Show a pop-up window if possible, else put it in queue"
-        if not isinstance(self.loop.widget,urwid.Overlay):
-            display_widget = urwid.Overlay(pop_up_widget, self.main_widget, 'center', ('relative', perc_width), 'middle', ('relative', perc_height))
+        if not isinstance(self.loop.widget, urwid.Overlay):
+            display_widget = urwid.Overlay(pop_up_widget, self.main_widget, 'center', ('relative', perc_width), valign, ('relative', perc_height))
             self.loop.widget = display_widget
             self.redraw()
         else:

frontends/src/primitivus/xmlui.py

@@ -105,7 +105,7 @@ class XMLUI(urwid.WidgetWrap):
                 self.ctrl_list[name] = ({'type':type_, 'control':ctrl})
             elif type_=="list":
                 style=[] if elem.getAttribute("multi")=='yes' else ['single']
-                ctrl = sat_widgets.List(options=[option.getAttribute("value") for option in elem.getElementsByTagName("option")], style=style, on_change=self.onParamChange)
+                ctrl = sat_widgets.List(options=[option.getAttribute("value") for option in elem.getElementsByTagName("option")], style=style, on_change=self.onParamChange if self.type == "param" else None)
                 ctrl.selectValue(elem.getAttribute("value"))
                 self.ctrl_list[name] = ({'type':type_, 'control':ctrl})
             elif type_=="button":
@@ -210,15 +210,18 @@ class XMLUI(urwid.WidgetWrap):
             ret_wid.addFooter(grid_wid)
         return ret_wid
 
-    def show(self,show_type = 'popup'):
+    def show(self, show_type='popup', valign='middle'):
         """Show the constructed UI
         @param show_type: how to show the UI:
             - popup
-            - window"""
+            - window
+        @param valign: vertical alignment when show_type is 'popup'.
+                       Ignored when show_type is 'window'.
+        """
         self.__dest = "popup"
         decorated = sat_widgets.LabelLine(self, sat_widgets.SurroundedText(self.title or ''))
         if show_type == 'popup':
-            self.host.showPopUp(decorated)
+            self.host.showPopUp(decorated, valign=valign)
         elif show_type == 'window':
             self.host.addWindow(decorated)
         else: