onionshare/onionshare_gui/mode/history.py

369 lines
12 KiB
Python

# -*- coding: utf-8 -*-
"""
OnionShare | https://onionshare.org/
Copyright (C) 2014-2018 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 time
from PyQt5 import QtCore, QtWidgets, QtGui
from onionshare import strings
class HistoryItem(QtWidgets.QWidget):
"""
The base history item
"""
def __init__(self):
super(HistoryItem, self).__init__()
def update(self):
pass
def cancel(self):
pass
class DownloadHistoryItem(HistoryItem):
"""
Download history item, for share mode
"""
def __init__(self, common, id, total_bytes):
super(DownloadHistoryItem, self).__init__()
self.common = common
self.id = id
self.started = time.time()
self.total_bytes = total_bytes
self.downloaded_bytes = 0
self.setStyleSheet('QWidget { border: 1px solid red; }')
# Progress bar
self.progress_bar = QtWidgets.QProgressBar()
self.progress_bar.setTextVisible(True)
self.progress_bar.setAttribute(QtCore.Qt.WA_DeleteOnClose)
self.progress_bar.setAlignment(QtCore.Qt.AlignHCenter)
self.progress_bar.setMinimum(0)
self.progress_bar.setMaximum(total_bytes)
self.progress_bar.setValue(0)
self.progress_bar.setStyleSheet(self.common.css['downloads_uploads_progress_bar'])
self.progress_bar.total_bytes = total_bytes
# Layout
layout = QtWidgets.QVBoxLayout()
layout.addWidget(self.progress_bar)
self.setLayout(layout)
# Start at 0
self.update(0)
def update(self, downloaded_bytes):
self.downloaded_bytes = downloaded_bytes
self.progress_bar.setValue(downloaded_bytes)
if downloaded_bytes == self.progress_bar.total_bytes:
pb_fmt = strings._('gui_download_upload_progress_complete').format(
self.common.format_seconds(time.time() - self.started))
else:
elapsed = time.time() - self.started
if elapsed < 10:
# Wait a couple of seconds for the download rate to stabilize.
# This prevents a "Windows copy dialog"-esque experience at
# the beginning of the download.
pb_fmt = strings._('gui_download_upload_progress_starting').format(
self.common.human_readable_filesize(downloaded_bytes))
else:
pb_fmt = strings._('gui_download_upload_progress_eta').format(
self.common.human_readable_filesize(downloaded_bytes),
self.estimated_time_remaining)
self.progress_bar.setFormat(pb_fmt)
def cancel(self):
self.progress_bar.setFormat(strings._('gui_canceled'))
@property
def estimated_time_remaining(self):
return self.common.estimated_time_remaining(self.downloaded_bytes,
self.total_bytes,
self.started)
class HistoryItemList(QtWidgets.QScrollArea):
"""
List of items
"""
def __init__(self, common):
super(HistoryItemList, self).__init__()
self.common = common
self.items = {}
# The layout that holds all of the items
self.items_layout = QtWidgets.QVBoxLayout()
self.items_layout.setContentsMargins(0, 0, 0, 0)
self.items_layout.setSizeConstraint(QtWidgets.QLayout.SetMinAndMaxSize)
# Wrapper layout that also contains a stretch
wrapper_layout = QtWidgets.QVBoxLayout()
wrapper_layout.setSizeConstraint(QtWidgets.QLayout.SetMinAndMaxSize)
wrapper_layout.addLayout(self.items_layout)
wrapper_layout.addStretch()
# The internal widget of the scroll area
widget = QtWidgets.QWidget()
widget.setLayout(wrapper_layout)
self.setWidget(widget)
self.setWidgetResizable(True)
# Other scroll area settings
self.setBackgroundRole(QtGui.QPalette.Light)
self.verticalScrollBar().rangeChanged.connect(self.resizeScroll)
def resizeScroll(self, minimum, maximum):
"""
Scroll to the bottom of the window when the range changes.
"""
self.verticalScrollBar().setValue(maximum)
def add(self, id, item):
"""
Add a new item. Override this method.
"""
self.items[id] = item
self.items_layout.addWidget(item)
def update(self, id, data):
"""
Update an item. Override this method.
"""
self.items[id].update(data)
def cancel(self, id):
"""
Cancel an item. Override this method.
"""
self.items[id].cancel()
def reset(self):
"""
Reset all items, emptying the list. Override this method.
"""
for item in self.items.values():
self.items_layout.removeWidget(item)
item.hide()
self.items = {}
class History(QtWidgets.QWidget):
"""
A history of what's happened so far in this mode. This contains an internal
object full of a scrollable list of items.
"""
def __init__(self, common, empty_image, empty_text, header_text):
super(History, self).__init__()
self.common = common
self.setMinimumWidth(350)
# In progress and completed counters
self.in_progress_count = 0
self.completed_count = 0
# In progress and completed labels
self.in_progress_label = QtWidgets.QLabel()
self.in_progress_label.setStyleSheet(self.common.css['mode_info_label'])
self.completed_label = QtWidgets.QLabel()
self.completed_label.setStyleSheet(self.common.css['mode_info_label'])
# Header
self.header_label = QtWidgets.QLabel(header_text)
self.header_label.setStyleSheet(self.common.css['downloads_uploads_label'])
clear_button = QtWidgets.QPushButton(strings._('gui_clear_history', True))
clear_button.setStyleSheet(self.common.css['downloads_uploads_clear'])
clear_button.setFlat(True)
clear_button.clicked.connect(self.reset)
header_layout = QtWidgets.QHBoxLayout()
header_layout.addWidget(self.header_label)
header_layout.addStretch()
header_layout.addWidget(self.in_progress_label)
header_layout.addWidget(self.completed_label)
header_layout.addWidget(clear_button)
# When there are no items
self.empty_image = QtWidgets.QLabel()
self.empty_image.setAlignment(QtCore.Qt.AlignCenter)
self.empty_image.setPixmap(empty_image)
self.empty_text = QtWidgets.QLabel(empty_text)
self.empty_text.setAlignment(QtCore.Qt.AlignCenter)
self.empty_text.setStyleSheet(self.common.css['downloads_uploads_empty_text'])
empty_layout = QtWidgets.QVBoxLayout()
empty_layout.addStretch()
empty_layout.addWidget(self.empty_image)
empty_layout.addWidget(self.empty_text)
empty_layout.addStretch()
self.empty = QtWidgets.QWidget()
self.empty.setStyleSheet(self.common.css['downloads_uploads_empty'])
self.empty.setLayout(empty_layout)
# When there are items
self.item_list = HistoryItemList(self.common)
self.not_empty_layout = QtWidgets.QVBoxLayout()
self.not_empty_layout.addLayout(header_layout)
self.not_empty_layout.addWidget(self.item_list)
self.not_empty = QtWidgets.QWidget()
self.not_empty.setLayout(self.not_empty_layout)
# Layout
layout = QtWidgets.QVBoxLayout()
layout.setContentsMargins(0, 0, 0, 0)
layout.addWidget(self.empty)
layout.addWidget(self.not_empty)
self.setLayout(layout)
# Reset once at the beginning
self.reset()
def add(self, id, item):
"""
Add a new item.
"""
self.common.log('History', 'add', 'id: {}, item: {}'.format(id, item))
# Hide empty, show not empty
self.empty.hide()
self.not_empty.show()
# Add it to the list
self.item_list.add(id, item)
def update(self, id, data):
"""
Update an item.
"""
self.item_list.update(id, data)
def cancel(self, id):
"""
Cancel an item.
"""
self.item_list.cancel(id)
def reset(self):
"""
Reset all items.
"""
self.item_list.reset()
# Hide not empty, show empty
self.not_empty.hide()
self.empty.show()
# Reset counters
self.completed_count = 0
self.in_progress_count = 0
self.update_completed()
self.update_in_progress()
def update_completed(self):
"""
Update the 'completed' widget.
"""
if self.completed_count == 0:
image = self.common.get_resource_path('images/share_completed_none.png')
else:
image = self.common.get_resource_path('images/share_completed.png')
self.completed_label.setText('<img src="{0:s}" /> {1:d}'.format(image, self.completed_count))
self.completed_label.setToolTip(strings._('history_completed_tooltip').format(self.completed_count))
def update_in_progress(self):
"""
Update the 'in progress' widget.
"""
if self.in_progress_count == 0:
image = self.common.get_resource_path('images/share_in_progress_none.png')
else:
image = self.common.get_resource_path('images/share_in_progress.png')
self.in_progress_label.setText('<img src="{0:s}" /> {1:d}'.format(image, self.in_progress_count))
self.in_progress_label.setToolTip(strings._('history_in_progress_tooltip', True).format(self.in_progress_count))
class ToggleHistory(QtWidgets.QPushButton):
"""
Widget for toggling showing or hiding the history, as well as keeping track
of the indicator counter if it's hidden
"""
def __init__(self, common, current_mode, history_widget, icon, selected_icon):
super(ToggleHistory, self).__init__()
self.common = common
self.current_mode = current_mode
self.history_widget = history_widget
self.icon = icon
self.selected_icon = selected_icon
# Toggle button
self.setDefault(False)
self.setFixedWidth(35)
self.setFixedHeight(30)
self.setFlat(True)
self.setIcon(icon)
self.clicked.connect(self.toggle_clicked)
# Keep track of indicator
self.indicator_count = 0
self.indicator_label = QtWidgets.QLabel(parent=self)
self.indicator_label.setStyleSheet(self.common.css['download_uploads_indicator'])
self.update_indicator()
def update_indicator(self, increment=False):
"""
Update the display of the indicator count. If increment is True, then
only increment the counter if Downloads is hidden.
"""
if increment and not self.history_widget.isVisible():
self.indicator_count += 1
self.indicator_label.setText("{}".format(self.indicator_count))
if self.indicator_count == 0:
self.indicator_label.hide()
else:
size = self.indicator_label.sizeHint()
self.indicator_label.setGeometry(35-size.width(), 0, size.width(), size.height())
self.indicator_label.show()
def toggle_clicked(self):
"""
Toggle showing and hiding the history widget
"""
self.common.log('ToggleHistory', 'toggle_clicked')
if self.history_widget.isVisible():
self.history_widget.hide()
self.setIcon(self.icon)
self.setFlat(True)
else:
self.history_widget.show()
self.setIcon(self.selected_icon)
self.setFlat(False)
# Reset the indicator count
self.indicator_count = 0
self.update_indicator()
self.current_mode.resize_window()