# HG changeset patch
# User Goffi <goffi@goffi.org>
# Date 1298158377 -3600
# Node ID 589e5e22f8f1a5ccd229bfbd58b9f6b8271405fa
# Parent  4da76342ae05b5a32ac7ae2b6d3a619424f8f664
menu example: added shortcut example + some comments

diff -r 4da76342ae05 -r 589e5e22f8f1 examples/menu.py
--- a/examples/menu.py	Sun Feb 20 00:04:53 2011 +0100
+++ b/examples/menu.py	Sun Feb 20 00:32:57 2011 +0100
@@ -18,16 +18,16 @@
 
     def __init__(self):
         _frame = urwid.Frame(urwid.Filler(urwid.Text('Menu demo', align='center')))
-        self.loop = urwid.MainLoop(_frame, const_PALETTE, unhandled_input=self.test_quit)
+        self.loop = urwid.MainLoop(_frame, const_PALETTE, unhandled_input=self.keyHandler)
         _frame.set_header(self.buildMenu())
         _frame.set_focus('header')
     
     def run(self):
         self.loop.run()
 
-    def menu_cb(self, menu_data):
+    def _messageExit(self, message):
         #We print the menu data in the middle of the screen
-        new_widget = urwid.Filler(urwid.Text("Menu selected: %s/%s" % menu_data, align='center'))
+        new_widget = urwid.Filler(urwid.Text(message, align='center'))
         self.loop.widget = new_widget
         self.loop.draw_screen()
         #5 seconds pause
@@ -35,22 +35,31 @@
         #see you
         raise urwid.ExitMainLoop()
 
+    def menu_cb(self, menu_data):
+        self._messageExit("Menu selected: %s/%s" % menu_data)
+
+    def exit_cb(self, menu_data):
+        self._messageExit("Exiting throught 'Exit' menu item")
+
     def buildMenu(self):
-        _menu = Menu(self.loop)
+        self.menu = Menu(self.loop)
         _menu1 = "Menu 1"
-        _menu.addMenu(_menu1, "Item 1", self.menu_cb)
-        _menu.addMenu(_menu1, "Item 2", self.menu_cb)
-        _menu.addMenu(_menu1, "Item 3", self.menu_cb)
+        self.menu.addMenu(_menu1, "Item 1", self.menu_cb) #Adding a menu is quite easy
+        self.menu.addMenu(_menu1, "Item 2", self.menu_cb) #Here the callback is always the same,
+        self.menu.addMenu(_menu1, "Item 3", self.menu_cb) #but you use differents one in real life :)
+        self.menu.addMenu(_menu1, "Exit (C-x)", self.exit_cb, 'ctrl x') #You can also add a shortcut
         _menu2 = "Menu 2"
-        _menu.addMenu(_menu2, "Item 1", self.menu_cb)
-        _menu.addMenu(_menu2, "Item 2", self.menu_cb)
-        _menu.addMenu(_menu2, "Item 3", self.menu_cb)
-        return _menu 
+        self.menu.addMenu(_menu2, "Item 1", self.menu_cb)
+        self.menu.addMenu(_menu2, "Item 2", self.menu_cb)
+        self.menu.addMenu(_menu2, "Item 3", self.menu_cb)
+        return self.menu 
 
-    def test_quit(self, input):
+    def keyHandler(self, input):
         """We leave is user press 'esc'"""
         if input in ('esc','q','Q'):
             raise urwid.ExitMainLoop()
+        else:
+            return self.menu.checkShortcuts(input)
 
 demo = MenuDemo()
 demo.run()