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# -*- coding: utf-8 -*-
"""
tkfilebrowser - Alternative to filedialog for Tkinter
Copyright 2017 Juliette Monsel <j_4321@protonmail.com>
tkfilebrowser 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 3 of the License, or
(at your option) any later version.
tkfilebrowser 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, see <http://www.gnu.org/licenses/>.
The icons are modified versions of icons from the elementary project
(the xfce fork to be precise https://github.com/shimmerproject/elementary-xfce)
Copyright 2007-2013 elementary LLC.
Recent files management
"""
class RecentFiles:
"""Recent files manager."""
def __init__(self, filename, nbmax=30):
"""
Create a recent file manager.
Options:
* filename: file where the recent file list is read/saved
* nbmax: maximum number of recent files to remember
"""
self._filename = filename
self.nbmax = nbmax
self._files = [] # most recent files first
try:
with open(filename) as file:
self._files = file.read().splitlines()
except Exception:
pass
def get(self):
"""Return recent file list."""
return self._files
def add(self, file):
"""Add file to recent files."""
if file not in self._files:
self._files.insert(0, file)
if len(self._files) > self.nbmax:
del(self._files[-1])
else:
self._files.remove(file)
self._files.insert(0, file)
try:
with open(self._filename, 'w') as file:
file.write('\n'.join(self._files))
except Exception:
# avoid raising errors if location is read-only or invalid path
pass
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