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# This file is part of the Frescobaldi project, http://www.frescobaldi.org/
#
# Copyright (c) 2008 - 2014 by Wilbert Berendsen
#
# 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
# See http://www.gnu.org/licenses/ for more information.
"""
Manages a local temporary directory for a Document (e.g. unnamed or remote).
"""
import os
import app
import util
import ly.lex
import documentinfo
import plugin
def scratchdir(document):
return ScratchDir.instance(document)
def findDocument(filename):
"""Like app.findDocument(), but also takes a possible scratchdir into account.
If the filename happens to be the scratch-filename of a document, that
document is returned. Otherwise, the document that really has the filename
is returned.
Note that, unlike app.findDocument(), a filename is specified and not a url.
"""
for d in app.documents:
if d.url().toLocalFile() == filename:
return d
s = ScratchDir.instance(d)
if s.directory() and util.equal_paths(filename, s.path()):
return d
class ScratchDir(plugin.DocumentPlugin):
def __init__(self, document):
self._directory = None
def create(self):
"""Creates the local temporary directory."""
if not self._directory:
self._directory = util.tempdir()
def directory(self):
"""Returns the directory if a temporary area was created, else None."""
return self._directory
def path(self):
"""Returns the path the saved document text would have if a temporary area was created, else None."""
if self._directory:
basename = None
if not self.document().url().isEmpty():
basename = os.path.basename(self.document().url().path())
if not basename:
basename = 'document' + ly.lex.extensions[documentinfo.mode(self.document())]
return os.path.join(self._directory, basename)
def saveDocument(self):
"""Writes the text of the document to our path()."""
if not self._directory:
self.create()
with open(self.path(), 'wb') as f:
f.write(self.document().encodedText())
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