~azzar1/unity/add-show-desktop-key

# IVLE

# Copyright (C) 2007-2008 The University of Melbourne

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

# App: subjects

# Author: Matt Giuca

# Date: 29/2/2008

# This is an IVLE application.

# A sample / testing application for IVLE.

import os

import urllib

import cgi

from common import util

def handle(req):

    """Handler for the Subjects application. Links to subject home pages."""

    req.styles = ["media/subjects/subjects.css"]

    if req.path == "":

        handle_toplevel_menu(req)

    else:

        handle_subject_page(req, req.path)

def handle_toplevel_menu(req):

    # This is represented as a directory. Redirect and add a slash if it is

    # missing.

    if req.uri[-1] != '/':

        req.throw_redirect(req.uri + '/')

    # Get list of subjects

    # TODO: Fetch from DB. For now, just get directory listing

    try:

        subjects = os.listdir(util.make_local_path(os.path.join('media',

            'subjects')))

    except OSError:

        req.throw_error(req.HTTP_INTERNAL_SERVER_ERROR,

            "There are is no subject homepages directory.")

    subjects.sort()

    req.content_type = "text/html"

    req.write_html_head_foot = True

    req.write('<div id="ivle_padding">\n')

    req.write("<h2>IVLE Subject Homepages</h2>\n")

    req.write("<h2>Subjects</h2>\n<ul>\n")

    for subject in subjects:

        req.write('  <li><a href="%s">%s</a></li>\n'

            % (urllib.quote(subject) + '/', cgi.escape(subject)))

    req.write("</ul>\n")

    req.write("</div>\n")

def handle_subject_page(req, path):

    req.content_type = "text/html"

    req.write_html_head_foot = True     # Have dispatch print head and foot

    # Just make the iframe pointing to media/subjects

    serve_loc = util.make_path(os.path.join('media', 'subjects', path))

    req.write('<iframe src="%s"></iframe>'

        % urllib.quote(serve_loc))