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# This file is part of pybliographer
#
# Copyright (C) 2005 Peter Schulte-Stracke
# Email : mail@schulte-stracke.de
#
# 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
"""
Pyblio.Resource -- handle (electronic) resourcces
View: start an application to display a rresource
--
"""
config_fields = 'resource/viewable-fields'
config_viewers = 'resource/viewers'
CHOOSER_ACTIONS = ('enter/edit', 'select', 'select-directory',
'download', 'move/copy' )
import os, sys, urllib, urlparse
from Pyblio import Config, Fields, userexit
def is_interactive ():
return sys.modules.has_key ('gtk')
class ResourceDirector (object):
""" Under construction ;-) """
Director = ResourceDirector ()
def is_viewable (item):
if userexit.resource_viewer_select (Director, item):
return True
for i in Config.get (config_fields).data:
if item.has_key (i):
return True
def get_viewables (item, priority=[]):
"""Return a list of possible viewable resources for an item"""
R = userexit.resource_viewer_select (Director, item)
if R: return R
viewables = Config.get (config_fields).data
return [ (key, item[key], item [key].get_url ()) for key
in priority + viewables if item.has_key (key)]
def StartViewer (entry, key, stringuri, parent=None, document=None):
if not is_interactive (): return
from Pyblio.GnomeUI import Compat, Utils
uri = Fields.URL (stringuri)
scheme, location, path, parameters, query, fragment = uri.url
fileuri = uri.get_url ()
if uri.invalid or uri.inexact:
message = Utils.Callback (
_("Warning: This URL is marked as Invalid or Approximate: %s\nContinue?") % fileuri)
if not message.answer (): return
if document:
document.statusbar.set_status (_("Determining Mime Type ... "))
try:
mimetype = Compat.get_mime_type (fileuri)
except RuntimeError, mesg:
Utils.error_dialog(_("Cannot determine mime type for item %s ") % entry.key.key,
_("URL in question is: %s\n"
"You should check the url or path given for errors.\n"
"Details: %s")
% (fileuri, mesg))
if document:
document.statusbar.pop ()
return
mimetype1 = mimetype.split ('/', 1) [0]
if document:
document.statusbar.set_status (_("Accessing resource ..."))
if scheme == 'file' and not location:
filename = path
elif mimetype in ['text/html', 'text/plain']:
filename = fileuri
else:
filename, headers = urllib.urlretrieve (fileuri)
if mimetype == 'application/x-gzip':
try:
tempname = os.tmpnam ()
os.system ("gzip -d < %s >%s" %(filename, tempname))
filename = tempname
mimetype = Compat.get_mime_type (filename)
except RuntimeError, mesg:
Utils.error_dialog (_("IOError for item %s: cannot uncompress resource.")
% entry.key.key, _("URL: %s\nDetails: %s")
% (filename, mesg))
if document:
document.statusbar.pop ()
return
viewers = [
item [1] for item in
Config.get (config_viewers).data if item [0] == mimetype] or [
item [1] for item in
Config.get (config_viewers).data if item [0].endswith ('/*') and
item [0] [:-2] == mimetype1]
if viewers:
cmd = viewers [0]
command = userexit.resource_viewer_setup (
Director, entry, key, cmd, filename, uri, mimetype
) or "%s %s&" %(cmd, filename)
if document:
document.statusbar.set_status (_("Starting application ..."))
os.system (command)
else:
Utils.error_dialog (_("No application to view resource"),
_("For mime type %s, no entry found in \n"
"configuration option resource/viewers.\n"
"Please consider adding one.\n"
"URL: %s") % (mimetype, fileuri))
if document:
document.statusbar.pop ()
return
# Local Variables:
# py-master-file: "ut_resource.py"
# coding: "latin-1"
# End:
|
