onionshare/onionshare_gui/file_selection.py
2014-11-18 18:35:09 +01:00

222 lines
7.4 KiB
Python

# -*- coding: utf-8 -*-
"""
OnionShare | https://onionshare.org/
Copyright (C) 2014 Micah Lee <micah@micahflee.com>
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/>.
"""
import os
from PyQt4 import QtCore, QtGui
import common
from onionshare import strings, helpers
class FileList(QtGui.QListWidget):
files_dropped = QtCore.pyqtSignal()
files_updated = QtCore.pyqtSignal()
def __init__(self, parent=None):
super(FileList, self).__init__(parent)
self.setAcceptDrops(True)
self.setIconSize(QtCore.QSize(32, 32))
self.setSortingEnabled(True)
class DropHereLabel(QtGui.QLabel):
def __init__(self, parent, image=False):
self.parent = parent
super(DropHereLabel, self).__init__(parent=parent)
self.setAcceptDrops(True)
self.setAlignment(QtCore.Qt.AlignCenter)
if image:
self.setPixmap(QtGui.QPixmap.fromImage(QtGui.QImage(common.get_image_path('drop_files.png'))))
else:
self.setText(QtCore.QString(strings._('gui_drag_and_drop', True)))
self.setStyleSheet('color: #999999;')
self.hide()
def dragEnterEvent(self, event):
self.parent.drop_here_image.hide()
self.parent.drop_here_text.hide()
event.ignore()
self.drop_here_image = DropHereLabel(self, True)
self.drop_here_text = DropHereLabel(self, False)
self.filenames = []
self.update()
def update(self):
# file list should have a background image if empty
if len(self.filenames) == 0:
self.drop_here_image.show()
self.drop_here_text.show()
else:
self.drop_here_image.hide()
self.drop_here_text.hide()
def resizeEvent(self, event):
self.drop_here_image.setGeometry(0, 0, self.width(), self.height())
self.drop_here_text.setGeometry(0, 0, self.width(), self.height())
def dragEnterEvent(self, event):
if event.mimeData().hasUrls:
event.accept()
else:
event.ignore()
def dragLeaveEvent(self, event):
event.accept()
self.update()
def dragMoveEvent(self, event):
if event.mimeData().hasUrls:
event.setDropAction(QtCore.Qt.CopyAction)
event.accept()
else:
event.ignore()
def dropEvent(self, event):
if event.mimeData().hasUrls:
event.setDropAction(QtCore.Qt.CopyAction)
event.accept()
for url in event.mimeData().urls():
filename = str(url.toLocalFile())
self.add_file(filename)
else:
event.ignore()
self.files_dropped.emit()
def add_file(self, filename):
if filename not in self.filenames:
# make filenames unicode-safe for Qt (#141)
filename = filename.encode('utf-8').decode('utf-8', 'replace')
self.filenames.append(filename)
fileinfo = QtCore.QFileInfo(filename)
basename = os.path.basename(filename.rstrip('/'))
ip = QtGui.QFileIconProvider()
icon = ip.icon(fileinfo)
if os.path.isfile(filename):
size = self.human_readable_filesize(fileinfo.size())
else:
size = self.human_readable_filesize(helpers.dir_size(filename))
item_name = unicode('{0} ({1})'.format(basename, size))
item = QtGui.QListWidgetItem(item_name)
item.setToolTip(QtCore.QString(size))
item.setIcon(icon)
self.addItem(item)
self.files_updated.emit()
def human_readable_filesize(self, b):
thresh = 1024.0
if b < thresh:
return '{0} B'.format(b)
units = ['KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB']
u = 0
b /= thresh
while b >= thresh:
b /= thresh
u += 1
return '{0} {1}'.format(round(b, 1), units[u])
class FileSelection(QtGui.QVBoxLayout):
def __init__(self):
super(FileSelection, self).__init__()
self.server_on = False
# file list
self.file_list = FileList()
self.file_list.currentItemChanged.connect(self.update)
self.file_list.files_dropped.connect(self.update)
# buttons
self.add_files_button = QtGui.QPushButton(strings._('gui_add_files', True))
self.add_files_button.clicked.connect(self.add_files)
self.add_dir_button = QtGui.QPushButton(strings._('gui_add_folder', True))
self.add_dir_button.clicked.connect(self.add_dir)
self.delete_button = QtGui.QPushButton(strings._('gui_delete', True))
self.delete_button.clicked.connect(self.delete_file)
button_layout = QtGui.QHBoxLayout()
button_layout.addWidget(self.add_files_button)
button_layout.addWidget(self.add_dir_button)
button_layout.addWidget(self.delete_button)
# add the widgets
self.addWidget(self.file_list)
self.addLayout(button_layout)
self.update()
def update(self):
# all buttons should be disabled if the server is on
if self.server_on:
self.add_files_button.setEnabled(False)
self.add_dir_button.setEnabled(False)
self.delete_button.setEnabled(False)
else:
self.add_files_button.setEnabled(True)
self.add_dir_button.setEnabled(True)
# delete button should be disabled if item isn't selected
current_item = self.file_list.currentItem()
if not current_item:
self.delete_button.setEnabled(False)
else:
self.delete_button.setEnabled(True)
# update the file list
self.file_list.update()
def add_files(self):
filenames = QtGui.QFileDialog.getOpenFileNames(caption=strings._('gui_choose_files', True), options=QtGui.QFileDialog.ReadOnly)
if filenames:
for filename in filenames:
self.file_list.add_file(str(filename))
self.update()
def add_dir(self):
filename = QtGui.QFileDialog.getExistingDirectory(caption=strings._('gui_choose_folder', True), options=QtGui.QFileDialog.ReadOnly)
if filename:
self.file_list.add_file(str(filename))
self.update()
def delete_file(self):
current_row = self.file_list.currentRow()
self.file_list.filenames.pop(current_row)
self.file_list.takeItem(current_row)
self.update()
def server_started(self):
self.server_on = True
self.file_list.setAcceptDrops(False)
self.update()
def server_stopped(self):
self.server_on = False
self.file_list.setAcceptDrops(True)
self.update()
def get_num_files(self):
return len(self.file_list.filenames)