152 lines
3.4 KiB
Python
152 lines
3.4 KiB
Python
#!/usr/bin/env python3
|
|
# -*- coding: utf-8 -*-
|
|
#
|
|
# Copyright (C) 2019 A S Lewis
|
|
#
|
|
# 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 3 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, see <http://www.gnu.org/licenses/>.
|
|
|
|
|
|
"""File manager classes."""
|
|
|
|
|
|
# Import Gtk modules
|
|
# ...
|
|
|
|
|
|
# Import other modules
|
|
from gi.repository import GdkPixbuf
|
|
import json
|
|
import os
|
|
import threading
|
|
|
|
|
|
# Import our modules
|
|
# ...
|
|
|
|
|
|
# Classes
|
|
|
|
|
|
class FileManager(threading.Thread):
|
|
|
|
"""Called by mainapp.TartubeApp.__init__().
|
|
|
|
Python class to manage loading of thumbnail, icon and JSON files safely
|
|
(i.e. without causing a Gtk crash).
|
|
"""
|
|
|
|
|
|
# Standard class methods
|
|
|
|
|
|
def __init__(self):
|
|
|
|
super(FileManager, self).__init__()
|
|
|
|
|
|
# Public class methods
|
|
|
|
|
|
def load_json(self, full_path):
|
|
|
|
"""Can be called by anything.
|
|
|
|
Given the full path to a JSON file, loads the file into a Python
|
|
dictionary and returns the dictionary.
|
|
|
|
Args:
|
|
|
|
full_path (string): The full path to the JSON file
|
|
|
|
Returns:
|
|
|
|
The JSON data, converted to a Python dictionary (an empty
|
|
dictionary if the file is missing or can't be loaded)
|
|
|
|
"""
|
|
|
|
json_dict = {}
|
|
if not os.path.isfile(full_path):
|
|
return json_dict
|
|
|
|
with open(full_path, 'r') as json_file:
|
|
json_dict = json.load(json_file)
|
|
|
|
return json_dict
|
|
|
|
|
|
def load_text(self, full_path):
|
|
|
|
"""Can be called by anything.
|
|
|
|
Given the full path to a text file, loads it.
|
|
|
|
Args:
|
|
|
|
full_path (string): The full path to the text file
|
|
|
|
Returns:
|
|
|
|
The contents of the text file as a string, or or None if the file
|
|
is missing or can't be loaded
|
|
|
|
"""
|
|
|
|
if not os.path.isfile(full_path):
|
|
return None
|
|
|
|
with open(full_path, 'r') as text_file:
|
|
text = text_file.read()
|
|
|
|
return text
|
|
|
|
|
|
def load_to_pixbuf(self, full_path, width=None, height=None):
|
|
|
|
"""Can be called by anything.
|
|
|
|
Given the full path to an icon file, loads the icon into a pibxuf, and
|
|
returns the pixbuf.
|
|
|
|
Args:
|
|
|
|
full_path (string): The full path to the icon file
|
|
|
|
width, height (int or None): If both are specified, the icon is
|
|
scaled to that size
|
|
|
|
Returns:
|
|
|
|
A GdkPixbuf, or None if the file is missing or can't be loaded
|
|
|
|
"""
|
|
|
|
if not os.path.isfile(full_path):
|
|
return None
|
|
|
|
try:
|
|
pixbuf = GdkPixbuf.Pixbuf.new_from_file(full_path)
|
|
except:
|
|
return None
|
|
|
|
if width is not None and height is not None:
|
|
pixbuf = pixbuf.scale_simple(
|
|
width,
|
|
height,
|
|
GdkPixbuf.InterpType.BILINEAR,
|
|
)
|
|
|
|
return pixbuf
|
|
|