Add support for XDG Path property

This only works with fluxbox, as to the best of my knowledge windowmaker
and icewm don't allow switching to another directory with cd and then
executing the command.

Thanks to Gregor Bollerhey (gregor-b on github) for making the initial
pull request about this issue.

src/xdgmenumaker

@@ -98,14 +98,16 @@ def usage():
 	print '    xdgmenumaker -i -f fluxbox'
 
 class MenuEntry:
-	def __init__(self, category, name, icon, command):
+	def __init__(self, category, name, icon, command, path):
 		self.category = category
 		self.name = name
 		self.icon = icon
 		self.command = command
+		self.path = path
 	
 	def __repr__(self):
-		return repr((self.category, self.name, self.icon, self.command))
+		return repr((self.category, self.name, self.icon, self.command,
+			self.path))
 
 def icon_full_path(icon):
 	# If the icon path is absolute and exists, leave it alone.
@@ -155,6 +157,10 @@ def get_entry_info(desktopfile):
 	if terminal is True:
 		command = 'xterm -e '+command
 
+	path = de.getPath()
+	if not path:
+		path = None
+
 	#cleaning up categories and keeping only registered freedesktop.org main categories
 	categories = de.getCategories()
 	if 'AudioVideo' in categories:
@@ -193,7 +199,7 @@ def get_entry_info(desktopfile):
 	if desktop in notshowin:
 		show = False
 	if show == True:
-		return [category, name, icon, command]
+		return [category, name, icon, command, path]
 	else:
 		return None
 
@@ -235,7 +241,7 @@ def menu():
 		try:
 			e = get_entry_info(desktopfile)
 			if e is not None:
-				applist.append(MenuEntry(e[0], e[1], e[2], e[3]))
+				applist.append(MenuEntry(e[0], e[1], e[2], e[3], e[4]))
 		except exc.ParsingError:
 			pass
 
@@ -246,7 +252,8 @@ def menu():
 		appsincategory = []
 		for i in sortedapplist:
 			if i.category == c:
-				appsincategory.append([i.name, i.icon, i.command])
+				appsincategory.append([i.name, i.icon, i.command,
+						i.path])
 		menu.append([c, appsincategory])
 	return menu
 
@@ -309,6 +316,9 @@ def fluxboxmenu():
 			name = j[0].replace(')', '\)')
 			icon = j[1]
 			command = j[2]
+			path = j[3]
+			if path is not None:
+				command = 'cd '+path+' ; '+command
 			if icon is None:
 				print spacing+'  [exec] ('+name+') {'+command+'}'
 			else: