mirror of
https://github.com/onionshare/onionshare.git
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391 lines
13 KiB
Python
391 lines
13 KiB
Python
# -*- coding: utf-8 -*-
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"""
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OnionShare | https://onionshare.org/
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Copyright (C) 2014-2018 Micah Lee <micah@micahflee.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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import os
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from PyQt5 import QtCore, QtWidgets, QtGui
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from onionshare import strings
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from ...widgets import Alert, AddFileDialog
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class DropHereLabel(QtWidgets.QLabel):
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"""
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When there are no files or folders in the FileList yet, display the
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'drop files here' message and graphic.
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"""
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def __init__(self, common, parent, image=False):
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self.parent = parent
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super(DropHereLabel, self).__init__(parent=parent)
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self.common = common
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self.setAcceptDrops(True)
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self.setAlignment(QtCore.Qt.AlignCenter)
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if image:
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self.setPixmap(QtGui.QPixmap.fromImage(QtGui.QImage(self.common.get_resource_path('images/logo_transparent.png'))))
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else:
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self.setText(strings._('gui_drag_and_drop', True))
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self.setStyleSheet(self.common.css['share_file_selection_drop_here_label'])
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self.hide()
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def dragEnterEvent(self, event):
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self.parent.drop_here_image.hide()
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self.parent.drop_here_text.hide()
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event.accept()
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class DropCountLabel(QtWidgets.QLabel):
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"""
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While dragging files over the FileList, this counter displays the
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number of files you're dragging.
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"""
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def __init__(self, common, parent):
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self.parent = parent
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super(DropCountLabel, self).__init__(parent=parent)
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self.common = common
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self.setAcceptDrops(True)
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self.setAlignment(QtCore.Qt.AlignCenter)
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self.setText(strings._('gui_drag_and_drop', True))
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self.setStyleSheet(self.common.css['share_file_selection_drop_count_label'])
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self.hide()
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def dragEnterEvent(self, event):
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self.hide()
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event.accept()
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class FileList(QtWidgets.QListWidget):
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"""
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The list of files and folders in the GUI.
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"""
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files_dropped = QtCore.pyqtSignal()
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files_updated = QtCore.pyqtSignal()
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def __init__(self, common, parent=None):
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super(FileList, self).__init__(parent)
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self.common = common
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self.setAcceptDrops(True)
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self.setIconSize(QtCore.QSize(32, 32))
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self.setSortingEnabled(True)
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self.setMinimumHeight(205)
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self.setSelectionMode(QtWidgets.QAbstractItemView.ExtendedSelection)
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self.drop_here_image = DropHereLabel(self.common, self, True)
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self.drop_here_text = DropHereLabel(self.common, self, False)
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self.drop_count = DropCountLabel(self.common, self)
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self.resizeEvent(None)
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self.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOn)
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def update(self):
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"""
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Update the GUI elements based on the current state.
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"""
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# file list should have a background image if empty
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if self.count() == 0:
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self.drop_here_image.show()
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self.drop_here_text.show()
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else:
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self.drop_here_image.hide()
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self.drop_here_text.hide()
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def server_started(self):
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"""
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Update the GUI when the server starts, by hiding delete buttons.
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"""
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self.setAcceptDrops(False)
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self.setCurrentItem(None)
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self.setSelectionMode(QtWidgets.QAbstractItemView.NoSelection)
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for index in range(self.count()):
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self.item(index).item_button.hide()
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def server_stopped(self):
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"""
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Update the GUI when the server stops, by showing delete buttons.
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"""
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self.setAcceptDrops(True)
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self.setSelectionMode(QtWidgets.QAbstractItemView.ExtendedSelection)
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for index in range(self.count()):
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self.item(index).item_button.show()
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def resizeEvent(self, event):
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"""
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When the widget is resized, resize the drop files image and text.
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"""
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offset = 70
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self.drop_here_image.setGeometry(0, 0, self.width(), self.height() - offset)
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self.drop_here_text.setGeometry(0, offset, self.width(), self.height() - offset)
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if self.count() > 0:
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# Add and delete an empty item, to force all items to get redrawn
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# This is ugly, but the only way I could figure out how to proceed
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item = QtWidgets.QListWidgetItem('fake item')
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self.addItem(item)
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self.takeItem(self.row(item))
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self.update()
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# Extend any filenames that were truncated to fit the window
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# We use 200 as a rough guess at how wide the 'file size + delete button' widget is
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# and extend based on the overall width minus that amount.
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for index in range(self.count()):
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metrics = QtGui.QFontMetrics(self.item(index).font())
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elided = metrics.elidedText(self.item(index).basename, QtCore.Qt.ElideRight, self.width() - 200)
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self.item(index).setText(elided)
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def dragEnterEvent(self, event):
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"""
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dragEnterEvent for dragging files and directories into the widget.
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"""
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if event.mimeData().hasUrls:
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self.setStyleSheet(self.common.css['share_file_list_drag_enter'])
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count = len(event.mimeData().urls())
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self.drop_count.setText('+{}'.format(count))
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size_hint = self.drop_count.sizeHint()
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self.drop_count.setGeometry(self.width() - size_hint.width() - 10, self.height() - size_hint.height() - 10, size_hint.width(), size_hint.height())
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self.drop_count.show()
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event.accept()
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else:
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event.ignore()
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def dragLeaveEvent(self, event):
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"""
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dragLeaveEvent for dragging files and directories into the widget.
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"""
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self.setStyleSheet(self.common.css['share_file_list_drag_leave'])
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self.drop_count.hide()
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event.accept()
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self.update()
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def dragMoveEvent(self, event):
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"""
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dragMoveEvent for dragging files and directories into the widget.
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"""
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if event.mimeData().hasUrls:
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event.setDropAction(QtCore.Qt.CopyAction)
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event.accept()
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else:
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event.ignore()
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def dropEvent(self, event):
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"""
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dropEvent for dragging files and directories into the widget.
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"""
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if event.mimeData().hasUrls:
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event.setDropAction(QtCore.Qt.CopyAction)
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event.accept()
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for url in event.mimeData().urls():
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filename = str(url.toLocalFile())
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self.add_file(filename)
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else:
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event.ignore()
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self.setStyleSheet(self.common.css['share_file_list_drag_leave'])
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self.drop_count.hide()
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self.files_dropped.emit()
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def add_file(self, filename):
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"""
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Add a file or directory to this widget.
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"""
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filenames = []
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for index in range(self.count()):
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filenames.append(self.item(index).filename)
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if filename not in filenames:
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if not os.access(filename, os.R_OK):
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Alert(self.common, strings._("not_a_readable_file", True).format(filename))
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return
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fileinfo = QtCore.QFileInfo(filename)
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ip = QtWidgets.QFileIconProvider()
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icon = ip.icon(fileinfo)
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if os.path.isfile(filename):
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size_bytes = fileinfo.size()
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size_readable = self.common.human_readable_filesize(size_bytes)
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else:
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size_bytes = self.common.dir_size(filename)
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size_readable = self.common.human_readable_filesize(size_bytes)
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# Create a new item
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item = QtWidgets.QListWidgetItem()
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item.setIcon(icon)
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item.size_bytes = size_bytes
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# Item's filename attribute and size labels
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item.filename = filename
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item_size = QtWidgets.QLabel(size_readable)
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item_size.setStyleSheet(self.common.css['share_file_list_item_size'])
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item.basename = os.path.basename(filename.rstrip('/'))
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# Use the basename as the method with which to sort the list
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metrics = QtGui.QFontMetrics(item.font())
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elided = metrics.elidedText(item.basename, QtCore.Qt.ElideRight, self.sizeHint().width())
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item.setData(QtCore.Qt.DisplayRole, elided)
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# Item's delete button
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def delete_item():
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itemrow = self.row(item)
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self.takeItem(itemrow)
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self.files_updated.emit()
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item.item_button = QtWidgets.QPushButton()
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item.item_button.setDefault(False)
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item.item_button.setFlat(True)
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item.item_button.setIcon( QtGui.QIcon(self.common.get_resource_path('images/file_delete.png')) )
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item.item_button.clicked.connect(delete_item)
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item.item_button.setSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed)
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# Item info widget, with a white background
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item_info_layout = QtWidgets.QHBoxLayout()
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item_info_layout.addWidget(item_size)
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item_info_layout.addWidget(item.item_button)
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item_info = QtWidgets.QWidget()
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item_info.setObjectName('item-info')
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item_info.setLayout(item_info_layout)
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# Create the item's widget and layouts
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item_hlayout = QtWidgets.QHBoxLayout()
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item_hlayout.addStretch()
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item_hlayout.addWidget(item_info)
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widget = QtWidgets.QWidget()
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widget.setLayout(item_hlayout)
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item.setSizeHint(widget.sizeHint())
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self.addItem(item)
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self.setItemWidget(item, widget)
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self.files_updated.emit()
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class FileSelection(QtWidgets.QVBoxLayout):
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"""
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The list of files and folders in the GUI, as well as buttons to add and
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delete the files and folders.
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"""
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def __init__(self, common):
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super(FileSelection, self).__init__()
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self.common = common
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self.server_on = False
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# File list
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self.file_list = FileList(self.common)
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self.file_list.itemSelectionChanged.connect(self.update)
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self.file_list.files_dropped.connect(self.update)
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self.file_list.files_updated.connect(self.update)
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# Buttons
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self.add_button = QtWidgets.QPushButton(strings._('gui_add', True))
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self.add_button.clicked.connect(self.add)
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self.delete_button = QtWidgets.QPushButton(strings._('gui_delete', True))
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self.delete_button.clicked.connect(self.delete)
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button_layout = QtWidgets.QHBoxLayout()
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button_layout.addStretch()
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button_layout.addWidget(self.add_button)
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button_layout.addWidget(self.delete_button)
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# Add the widgets
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self.addWidget(self.file_list)
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self.addLayout(button_layout)
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self.update()
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def update(self):
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"""
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Update the GUI elements based on the current state.
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"""
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# All buttons should be hidden if the server is on
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if self.server_on:
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self.add_button.hide()
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self.delete_button.hide()
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else:
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self.add_button.show()
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# Delete button should be hidden if item isn't selected
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if len(self.file_list.selectedItems()) == 0:
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self.delete_button.hide()
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else:
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self.delete_button.show()
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# Update the file list
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self.file_list.update()
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def add(self):
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"""
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Add button clicked.
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"""
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file_dialog = AddFileDialog(self.common, caption=strings._('gui_choose_items', True))
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if file_dialog.exec_() == QtWidgets.QDialog.Accepted:
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for filename in file_dialog.selectedFiles():
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self.file_list.add_file(filename)
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self.file_list.setCurrentItem(None)
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self.update()
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def delete(self):
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"""
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Delete button clicked
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"""
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selected = self.file_list.selectedItems()
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for item in selected:
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itemrow = self.file_list.row(item)
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self.file_list.takeItem(itemrow)
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self.file_list.files_updated.emit()
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self.file_list.setCurrentItem(None)
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self.update()
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def server_started(self):
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"""
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Gets called when the server starts.
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"""
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self.server_on = True
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self.file_list.server_started()
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self.update()
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def server_stopped(self):
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"""
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Gets called when the server stops.
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"""
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self.server_on = False
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self.file_list.server_stopped()
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self.update()
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def get_num_files(self):
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"""
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Returns the total number of files and folders in the list.
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"""
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return len(range(self.file_list.count()))
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def setFocus(self):
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"""
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Set the Qt app focus on the file selection box.
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"""
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self.file_list.setFocus()
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