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Viewing changes to UpdateManager/HelpViewer.py

  • Committer: Michael Vogt
  • Date: 2005-11-15 14:44:23 UTC
  • Revision ID: egon@top-20051115144423-5d01f44d63b99ecc
* build-system tweaks

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UpdateManager/HelpViewer.py
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# helpviewer.py
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# -*- Mode: Python; indent-tabs-mode: nil; tab-width: 4; coding: utf-8 -*-
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import os
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import subprocess
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# Hardcoded list of available help viewers
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# FIXME: khelpcenter support would be nice
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#KNOWN_VIEWERS = ["/usr/bin/yelp", "/usr/bin/khelpcenter"]
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KNOWN_VIEWERS = ["/usr/bin/yelp"]
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class HelpViewer:
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    def __init__(self, docu):
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        self.command = []
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        self.docu = docu
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        for viewer in KNOWN_VIEWERS:
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            if os.path.exists(viewer):
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                self.command = [viewer, "help:%s" % docu]
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                break
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    def check(self):
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        """check if a viewer is available"""
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        if self.command == []:
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            return False
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        else:
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            return True
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    def run(self):
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        """open the documentation in the viewer"""
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        # avoid running the help viewer as root
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        if os.getuid() == 0 and 'SUDO_USER' in os.environ:
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            self.command = ['sudo', '-u', os.environ['SUDO_USER']] +\
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                self.command
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        subprocess.Popen(self.command)