class HelpView(urwid.Frame):
def __init__(self):
self.load_help()
self.ftext = urwid.Text("Dummy")
self.filler = urwid.Filler(self.ftext)
self.parser = HelpParser(logger=ilog)
return super(HelpView, self).__init__(self.filler, urwid.Text("Hilfe-Ansicht"))
def load_help(self):
""" Parse the yaml-file with the help information
"""
try:
path = find_resource("record_help.yaml")
with open(path, "r") as f:
self.helpmap = yaml.load(f)
ilog.debug("help-file successfully loaded")
except IOError:
ilog.warn("help-file could not be opened! - no help availiable")
self.helpmap = None
except yaml.YAMLError as e:
ilog.warn("help-file could not be parsed! - no help availiable")
ilog.warn("Error in help-file: %s" % e)
def show_topic(self, arguments):
text = []
arg0 = arguments[0]
if not self.helpmap:
ilog.warn("Help not avaliable (look for previous errors)")
return False
if not arguments[0] in self.helpmap:
ilog.info("Help on the topic %s could not be found" % arg0)
return False
topic = self.helpmap
while arguments:
arg = arguments.pop()
if not arg in topic:
ilog.info("Help on the subtopic %s could not be found." % arg)
return False
topic = topic[arg]
if "usage" in topic:
text.append(("help_usage", topic["usage"] + "\n\n"))
ilog.debug("Calling Parser for topic %s" % arg0)
text.extend(self.parser.parse(topic["help"]))
self.ftext.set_text(text)
return True
def __init__(self):
self.load_help()
self.ftext = urwid.Text("Dummy")
self.filler = urwid.Filler(self.ftext)
self.parser = HelpParser(logger=ilog)
return super(HelpView, self).__init__(self.filler, urwid.Text("Hilfe-Ansicht"))