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openlp/openlp/core/ui/firsttimeform.py

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# -*- coding: utf-8 -*-
# vim: autoindent shiftwidth=4 expandtab textwidth=120 tabstop=4 softtabstop=4
###############################################################################
# OpenLP - Open Source Lyrics Projection #
# --------------------------------------------------------------------------- #
# Copyright (c) 2008-2019 OpenLP Developers #
# --------------------------------------------------------------------------- #
# 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; version 2 of the License. #
# #
# 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, write to the Free Software Foundation, Inc., 59 #
# Temple Place, Suite 330, Boston, MA 02111-1307 USA #
###############################################################################
"""
This module contains the first time wizard.
"""
import logging
import time
import urllib.error
import urllib.parse
import urllib.request
from configparser import ConfigParser, MissingSectionHeaderError, NoOptionError, NoSectionError
from tempfile import gettempdir
from PyQt5 import QtCore, QtWidgets
from openlp.core.common import clean_button_text, trace_error_handler
from openlp.core.common.applocation import AppLocation
from openlp.core.common.httputils import download_file, get_url_file_size, get_web_page
from openlp.core.common.i18n import translate
from openlp.core.common.mixins import RegistryProperties
from openlp.core.common.path import Path, create_paths
from openlp.core.common.registry import Registry
from openlp.core.common.settings import Settings
from openlp.core.lib import build_icon
from openlp.core.lib.plugin import PluginStatus
from openlp.core.lib.ui import critical_error_message_box
from openlp.core.threading import ThreadWorker, get_thread_worker, is_thread_finished, run_thread
from openlp.core.ui.firsttimewizard import FirstTimePage, UiFirstTimeWizard
log = logging.getLogger(__name__)
class ThemeScreenshotWorker(ThreadWorker):
"""
This thread downloads a theme's screenshot
"""
screenshot_downloaded = QtCore.pyqtSignal(str, str, str)
def __init__(self, themes_url, title, filename, sha256, screenshot):
"""
Set up the worker object
"""
self.was_cancelled = False
self.themes_url = themes_url
self.title = title
self.filename = filename
self.sha256 = sha256
self.screenshot = screenshot
super().__init__()
def start(self):
"""
Run the worker
"""
if self.was_cancelled:
return
try:
download_path = Path(gettempdir()) / 'openlp' / self.screenshot
is_success = download_file(self, '{host}{name}'.format(host=self.themes_url, name=self.screenshot),
download_path)
if is_success and not self.was_cancelled:
# Signal that the screenshot has been downloaded
self.screenshot_downloaded.emit(self.title, self.filename, self.sha256)
except: # noqa
log.exception('Unable to download screenshot')
finally:
self.quit.emit()
@QtCore.pyqtSlot(bool)
def set_download_canceled(self, toggle):
"""
Externally set if the download was canceled
:param toggle: Set if the download was canceled or not
"""
self.was_download_cancelled = toggle
class FirstTimeForm(QtWidgets.QWizard, UiFirstTimeWizard, RegistryProperties):
"""
This is the Theme Import Wizard, which allows easy creation and editing of OpenLP themes.
"""
log.info('ThemeWizardForm loaded')
def __init__(self, parent=None):
"""
Create and set up the first time wizard.
"""
super(FirstTimeForm, self).__init__(parent)
self.web_access = True
self.web = ''
self.setup_ui(self)
def get_next_page_id(self):
"""
Returns the id of the next FirstTimePage to go to based on enabled plugins
"""
if FirstTimePage.ScreenConfig < self.currentId() < FirstTimePage.Songs and self.songs_check_box.isChecked():
# If the songs plugin is enabled then go to the songs page
return FirstTimePage.Songs
elif FirstTimePage.ScreenConfig < self.currentId() < FirstTimePage.Bibles and self.bible_check_box.isChecked():
# Otherwise, if the Bibles plugin is enabled then go to the Bibles page
return FirstTimePage.Bibles
elif FirstTimePage.ScreenConfig < self.currentId() < FirstTimePage.Themes:
# Otherwise, if the current page is somewhere between the Welcome and the Themes pages, go to the themes
return FirstTimePage.Themes
else:
# If all else fails, go to the next page
return self.currentId() + 1
def nextId(self):
"""
Determine the next page in the Wizard to go to.
"""
self.application.process_events()
if self.currentId() == FirstTimePage.Download:
if not self.web_access:
return FirstTimePage.NoInternet
else:
return FirstTimePage.Plugins
elif self.currentId() == FirstTimePage.Plugins:
return self.get_next_page_id()
elif self.currentId() == FirstTimePage.Progress:
return -1
elif self.currentId() == FirstTimePage.NoInternet:
return FirstTimePage.Progress
elif self.currentId() == FirstTimePage.Themes:
self.application.set_busy_cursor()
while not all([is_thread_finished(thread_name) for thread_name in self.theme_screenshot_threads]):
time.sleep(0.1)
self.application.process_events()
# Build the screenshot icons, as this can not be done in the thread.
self._build_theme_screenshots()
self.application.set_normal_cursor()
self.theme_screenshot_threads = []
return self.get_next_page_id()
else:
return self.get_next_page_id()
def exec(self):
"""
Run the wizard.
"""
self.set_defaults()
return QtWidgets.QWizard.exec(self)
def initialize(self, screens):
"""
Set up the First Time Wizard
:param screens: The screens detected by OpenLP
"""
self.screens = screens
self.was_cancelled = False
self.theme_screenshot_threads = []
self.has_run_wizard = False
self.themes_list_widget.itemChanged.connect(self.on_theme_selected)
def _download_index(self):
"""
Download the configuration file and kick off the theme screenshot download threads
"""
# check to see if we have web access
self.web_access = False
self.config = ConfigParser()
user_agent = 'OpenLP/' + Registry().get('application').applicationVersion()
self.application.process_events()
try:
web_config = get_web_page('{host}{name}'.format(host=self.web, name='download.cfg'),
headers={'User-Agent': user_agent})
except ConnectionError:
QtWidgets.QMessageBox.critical(self, translate('OpenLP.FirstTimeWizard', 'Network Error'),
translate('OpenLP.FirstTimeWizard', 'There was a network error attempting '
'to connect to retrieve initial configuration information'),
QtWidgets.QMessageBox.Ok)
web_config = False
if web_config:
try:
self.config.read_string(web_config)
self.web = self.config.get('general', 'base url')
self.songs_url = self.web + self.config.get('songs', 'directory') + '/'
self.bibles_url = self.web + self.config.get('bibles', 'directory') + '/'
self.themes_url = self.web + self.config.get('themes', 'directory') + '/'
self.web_access = True
except (NoSectionError, NoOptionError, MissingSectionHeaderError):
log.debug('A problem occurred while parsing the downloaded config file')
trace_error_handler(log)
self.application.process_events()
self.downloading = translate('OpenLP.FirstTimeWizard', 'Downloading {name}...')
if self.has_run_wizard:
self.songs_check_box.setChecked(self.plugin_manager.get_plugin_by_name('songs').is_active())
self.bible_check_box.setChecked(self.plugin_manager.get_plugin_by_name('bibles').is_active())
self.presentation_check_box.setChecked(self.plugin_manager.get_plugin_by_name('presentations').is_active())
self.image_check_box.setChecked(self.plugin_manager.get_plugin_by_name('images').is_active())
self.media_check_box.setChecked(self.plugin_manager.get_plugin_by_name('media').is_active())
self.custom_check_box.setChecked(self.plugin_manager.get_plugin_by_name('custom').is_active())
self.song_usage_check_box.setChecked(self.plugin_manager.get_plugin_by_name('songusage').is_active())
self.alert_check_box.setChecked(self.plugin_manager.get_plugin_by_name('alerts').is_active())
self.application.set_normal_cursor()
# Sort out internet access for downloads
if self.web_access:
songs = self.config.get('songs', 'languages')
songs = songs.split(',')
for song in songs:
self.application.process_events()
title = self.config.get('songs_{song}'.format(song=song), 'title')
filename = self.config.get('songs_{song}'.format(song=song), 'filename')
sha256 = self.config.get('songs_{song}'.format(song=song), 'sha256', fallback='')
item = QtWidgets.QListWidgetItem(title, self.songs_list_widget)
item.setData(QtCore.Qt.UserRole, (filename, sha256))
item.setCheckState(QtCore.Qt.Unchecked)
item.setFlags(item.flags() | QtCore.Qt.ItemIsUserCheckable)
bible_languages = self.config.get('bibles', 'languages')
bible_languages = bible_languages.split(',')
for lang in bible_languages:
self.application.process_events()
language = self.config.get('bibles_{lang}'.format(lang=lang), 'title')
lang_item = QtWidgets.QTreeWidgetItem(self.bibles_tree_widget, [language])
bibles = self.config.get('bibles_{lang}'.format(lang=lang), 'translations')
bibles = bibles.split(',')
for bible in bibles:
self.application.process_events()
title = self.config.get('bible_{bible}'.format(bible=bible), 'title')
filename = self.config.get('bible_{bible}'.format(bible=bible), 'filename')
sha256 = self.config.get('bible_{bible}'.format(bible=bible), 'sha256', fallback='')
item = QtWidgets.QTreeWidgetItem(lang_item, [title])
item.setData(0, QtCore.Qt.UserRole, (filename, sha256))
item.setCheckState(0, QtCore.Qt.Unchecked)
item.setFlags(item.flags() | QtCore.Qt.ItemIsUserCheckable)
self.bibles_tree_widget.expandAll()
self.application.process_events()
# Download the theme screenshots
themes = self.config.get('themes', 'files').split(',')
for theme in themes:
title = self.config.get('theme_{theme}'.format(theme=theme), 'title')
filename = self.config.get('theme_{theme}'.format(theme=theme), 'filename')
sha256 = self.config.get('theme_{theme}'.format(theme=theme), 'sha256', fallback='')
screenshot = self.config.get('theme_{theme}'.format(theme=theme), 'screenshot')
worker = ThemeScreenshotWorker(self.themes_url, title, filename, sha256, screenshot)
worker.screenshot_downloaded.connect(self.on_screenshot_downloaded)
thread_name = 'theme_screenshot_{title}'.format(title=title)
run_thread(worker, thread_name)
self.theme_screenshot_threads.append(thread_name)
self.application.process_events()
def set_defaults(self):
"""
Set up display at start of theme edit.
"""
self.restart()
self.web = 'http://openlp.org/files/frw/'
self.cancel_button.clicked.connect(self.on_cancel_button_clicked)
self.no_internet_finish_button.clicked.connect(self.on_no_internet_finish_button_clicked)
self.no_internet_cancel_button.clicked.connect(self.on_no_internet_cancel_button_clicked)
self.currentIdChanged.connect(self.on_current_id_changed)
Registry().register_function('config_screen_changed', self.screen_selection_widget.load)
self.no_internet_finish_button.setVisible(False)
self.no_internet_cancel_button.setVisible(False)
# Check if this is a re-run of the wizard.
self.has_run_wizard = Settings().value('core/has run wizard')
create_paths(Path(gettempdir(), 'openlp'))
self.theme_combo_box.clear()
if self.has_run_wizard:
# Add any existing themes to list.
for theme in self.theme_manager.get_themes():
self.theme_combo_box.addItem(theme)
default_theme = Settings().value('themes/global theme')
# Pre-select the current default theme.
index = self.theme_combo_box.findText(default_theme)
self.theme_combo_box.setCurrentIndex(index)
def on_current_id_changed(self, page_id):
"""
Detects Page changes and updates as appropriate.
"""
# Keep track of the page we are at. Triggering "Cancel" causes page_id to be a -1.
self.application.process_events()
if page_id != -1:
self.last_id = page_id
if page_id == FirstTimePage.Download:
self.back_button.setVisible(False)
self.next_button.setVisible(False)
# Set the no internet page text.
if self.has_run_wizard:
self.no_internet_label.setText(self.no_internet_text)
else:
self.no_internet_label.setText(self.no_internet_text + self.cancel_wizard_text)
self.application.set_busy_cursor()
self._download_index()
self.application.set_normal_cursor()
self.back_button.setVisible(False)
self.next_button.setVisible(True)
self.next()
elif page_id == FirstTimePage.NoInternet:
self.back_button.setVisible(False)
self.next_button.setVisible(False)
self.cancel_button.setVisible(False)
self.no_internet_finish_button.setVisible(True)
if self.has_run_wizard:
self.no_internet_cancel_button.setVisible(False)
else:
self.no_internet_cancel_button.setVisible(True)
elif page_id == FirstTimePage.Plugins:
self.back_button.setVisible(False)
elif page_id == FirstTimePage.Progress:
self.application.set_busy_cursor()
self._pre_wizard()
self._perform_wizard()
self._post_wizard()
self.application.set_normal_cursor()
def on_cancel_button_clicked(self):
"""
Process the triggering of the cancel button.
"""
self.was_cancelled = True
if self.theme_screenshot_threads:
for thread_name in self.theme_screenshot_threads:
worker = get_thread_worker(thread_name)
if worker:
worker.set_download_canceled(True)
# Was the thread created.
if self.theme_screenshot_threads:
while any([not is_thread_finished(thread_name) for thread_name in self.theme_screenshot_threads]):
time.sleep(0.1)
self.application.set_normal_cursor()
def on_screenshot_downloaded(self, title, filename, sha256):
"""
Add an item to the list when a theme has been downloaded
:param title: The title of the theme
:param filename: The filename of the theme
"""
self.themes_list_widget.blockSignals(True)
item = QtWidgets.QListWidgetItem(title, self.themes_list_widget)
item.setData(QtCore.Qt.UserRole, (filename, sha256))
item.setCheckState(QtCore.Qt.Unchecked)
item.setFlags(item.flags() | QtCore.Qt.ItemIsUserCheckable)
self.themes_list_widget.blockSignals(False)
def on_theme_selected(self, item):
"""
Add or remove a de/selected sample theme from the theme_combo_box
:param QtWidgets.QListWidgetItem item: The item that has been de/selected
:rtype: None
"""
theme_name = item.text()
if self.theme_manager and theme_name in self.theme_manager.get_themes():
return True
if item.checkState() == QtCore.Qt.Checked:
self.theme_combo_box.addItem(theme_name)
return True
else:
index = self.theme_combo_box.findText(theme_name)
if index != -1:
self.theme_combo_box.removeItem(index)
return True
def on_no_internet_finish_button_clicked(self):
"""
Process the triggering of the "Finish" button on the No Internet page.
"""
self.application.set_busy_cursor()
self._perform_wizard()
self.application.set_normal_cursor()
Settings().setValue('core/has run wizard', True)
self.close()
def on_no_internet_cancel_button_clicked(self):
"""
Process the triggering of the "Cancel" button on the No Internet page.
"""
self.was_cancelled = True
self.close()
def _build_theme_screenshots(self):
"""
This method builds the theme screenshots' icons for all items in the ``self.themes_list_widget``.
"""
themes = self.config.get('themes', 'files')
themes = themes.split(',')
for index, theme in enumerate(themes):
screenshot = self.config.get('theme_{theme}'.format(theme=theme), 'screenshot')
item = self.themes_list_widget.item(index)
if item:
item.setIcon(build_icon(Path(gettempdir(), 'openlp', screenshot)))
def update_progress(self, count, block_size):
"""
Calculate and display the download progress. This method is called by download_file().
"""
increment = (count * block_size) - self.previous_size
self._increment_progress_bar(None, increment)
self.previous_size = count * block_size
def _increment_progress_bar(self, status_text, increment=1):
"""
Update the wizard progress page.
:param status_text: Current status information to display.
:param increment: The value to increment the progress bar by.
"""
if status_text:
self.progress_label.setText(status_text)
if increment > 0:
self.progress_bar.setValue(self.progress_bar.value() + increment)
self.application.process_events()
def _pre_wizard(self):
"""
Prepare the UI for the process.
"""
self.max_progress = 0
self.finish_button.setVisible(False)
self.application.process_events()
try:
# Loop through the songs list and increase for each selected item
for i in range(self.songs_list_widget.count()):
self.application.process_events()
item = self.songs_list_widget.item(i)
if item.checkState() == QtCore.Qt.Checked:
filename, sha256 = item.data(QtCore.Qt.UserRole)
size = get_url_file_size('{path}{name}'.format(path=self.songs_url, name=filename))
self.max_progress += size
# Loop through the Bibles list and increase for each selected item
iterator = QtWidgets.QTreeWidgetItemIterator(self.bibles_tree_widget)
while iterator.value():
self.application.process_events()
item = iterator.value()
if item.parent() and item.checkState(0) == QtCore.Qt.Checked:
filename, sha256 = item.data(0, QtCore.Qt.UserRole)
size = get_url_file_size('{path}{name}'.format(path=self.bibles_url, name=filename))
self.max_progress += size
iterator += 1
# Loop through the themes list and increase for each selected item
for i in range(self.themes_list_widget.count()):
self.application.process_events()
item = self.themes_list_widget.item(i)
if item.checkState() == QtCore.Qt.Checked:
filename, sha256 = item.data(QtCore.Qt.UserRole)
size = get_url_file_size('{path}{name}'.format(path=self.themes_url, name=filename))
self.max_progress += size
except urllib.error.URLError:
trace_error_handler(log)
critical_error_message_box(translate('OpenLP.FirstTimeWizard', 'Download Error'),
translate('OpenLP.FirstTimeWizard', 'There was a connection problem during '
'download, so further downloads will be skipped. Try to re-run the '
'First Time Wizard later.'))
self.max_progress = 0
self.web_access = None
if self.max_progress:
# Add on 2 for plugins status setting plus a "finished" point.
self.max_progress += 2
self.progress_bar.setValue(0)
self.progress_bar.setMinimum(0)
self.progress_bar.setMaximum(self.max_progress)
self.progress_page.setTitle(translate('OpenLP.FirstTimeWizard', 'Setting Up And Downloading'))
self.progress_page.setSubTitle(
translate('OpenLP.FirstTimeWizard', 'Please wait while OpenLP is set up and your data is downloaded.'))
else:
self.progress_bar.setVisible(False)
self.progress_page.setTitle(translate('OpenLP.FirstTimeWizard', 'Setting Up'))
self.progress_page.setSubTitle('Setup complete.')
self.repaint()
self.application.process_events()
# Try to give the wizard a chance to repaint itself
time.sleep(0.1)
def _post_wizard(self):
"""
Clean up the UI after the process has finished.
"""
if self.max_progress:
self.progress_bar.setValue(self.progress_bar.maximum())
if self.has_run_wizard:
text = translate('OpenLP.FirstTimeWizard',
'Download complete. Click the {button} button to return to OpenLP.'
).format(button=clean_button_text(self.buttonText(QtWidgets.QWizard.FinishButton)))
self.progress_label.setText(text)
else:
text = translate('OpenLP.FirstTimeWizard',
'Download complete. Click the {button} button to start OpenLP.'
).format(button=clean_button_text(self.buttonText(QtWidgets.QWizard.FinishButton)))
self.progress_label.setText(text)
else:
if self.has_run_wizard:
text = translate('OpenLP.FirstTimeWizard',
'Click the {button} button to return to OpenLP.'
).format(button=clean_button_text(self.buttonText(QtWidgets.QWizard.FinishButton)))
self.progress_label.setText(text)
else:
text = translate('OpenLP.FirstTimeWizard',
'Click the {button} button to start OpenLP.'
).format(button=clean_button_text(self.buttonText(QtWidgets.QWizard.FinishButton)))
self.progress_label.setText(text)
self.finish_button.setVisible(True)
self.finish_button.setEnabled(True)
self.cancel_button.setVisible(False)
self.next_button.setVisible(False)
self.application.process_events()
def _perform_wizard(self):
"""
Run the tasks in the wizard.
"""
# Set plugin states
self._increment_progress_bar(translate('OpenLP.FirstTimeWizard', 'Enabling selected plugins...'))
self._set_plugin_status(self.songs_check_box, 'songs/status')
self._set_plugin_status(self.bible_check_box, 'bibles/status')
self._set_plugin_status(self.presentation_check_box, 'presentations/status')
self._set_plugin_status(self.image_check_box, 'images/status')
self._set_plugin_status(self.media_check_box, 'media/status')
self._set_plugin_status(self.custom_check_box, 'custom/status')
self._set_plugin_status(self.song_usage_check_box, 'songusage/status')
self._set_plugin_status(self.alert_check_box, 'alerts/status')
if self.web_access:
if not self._download_selected():
critical_error_message_box(translate('OpenLP.FirstTimeWizard', 'Download Error'),
translate('OpenLP.FirstTimeWizard', 'There was a connection problem while '
'downloading, so further downloads will be skipped. Try to re-run '
'the First Time Wizard later.'))
self.screen_selection_widget.save()
if self.theme_combo_box.currentIndex() != -1:
Settings().setValue('themes/global theme', self.theme_combo_box.currentText())
def _download_selected(self):
"""
Download selected songs, bibles and themes. Returns False on download error
"""
# Build directories for downloads
songs_destination_path = Path(gettempdir(), 'openlp')
bibles_destination_path = AppLocation.get_section_data_path('bibles')
themes_destination_path = AppLocation.get_section_data_path('themes')
missed_files = []
# Download songs
for i in range(self.songs_list_widget.count()):
item = self.songs_list_widget.item(i)
if item.checkState() == QtCore.Qt.Checked:
filename, sha256 = item.data(QtCore.Qt.UserRole)
self._increment_progress_bar(self.downloading.format(name=filename), 0)
self.previous_size = 0
destination = songs_destination_path / str(filename)
if not download_file(self, '{path}{name}'.format(path=self.songs_url, name=filename),
destination, sha256):
missed_files.append('Song: {name}'.format(name=filename))
# Download Bibles
bibles_iterator = QtWidgets.QTreeWidgetItemIterator(self.bibles_tree_widget)
while bibles_iterator.value():
item = bibles_iterator.value()
if item.parent() and item.checkState(0) == QtCore.Qt.Checked:
bible, sha256 = item.data(0, QtCore.Qt.UserRole)
self._increment_progress_bar(self.downloading.format(name=bible), 0)
self.previous_size = 0
if not download_file(self, '{path}{name}'.format(path=self.bibles_url, name=bible),
bibles_destination_path / bible, sha256):
missed_files.append('Bible: {name}'.format(name=bible))
bibles_iterator += 1
# Download themes
for i in range(self.themes_list_widget.count()):
item = self.themes_list_widget.item(i)
if item.checkState() == QtCore.Qt.Checked:
theme, sha256 = item.data(QtCore.Qt.UserRole)
self._increment_progress_bar(self.downloading.format(name=theme), 0)
self.previous_size = 0
if not download_file(self, '{path}{name}'.format(path=self.themes_url, name=theme),
themes_destination_path / theme, sha256):
missed_files.append('Theme: {name}'.format(name=theme))
if missed_files:
file_list = ''
for entry in missed_files:
file_list += '{text}<br \\>'.format(text=entry)
msg = QtWidgets.QMessageBox()
msg.setIcon(QtWidgets.QMessageBox.Warning)
msg.setWindowTitle(translate('OpenLP.FirstTimeWizard', 'Network Error'))
msg.setText(translate('OpenLP.FirstTimeWizard', 'Unable to download some files'))
msg.setInformativeText(translate('OpenLP.FirstTimeWizard',
'The following files were not able to be '
'downloaded:<br \\>{text}'.format(text=file_list)))
msg.setStandardButtons(msg.Ok)
msg.exec()
return True
def _set_plugin_status(self, field, tag):
"""
Set the status of a plugin.
"""
status = PluginStatus.Active if field.checkState() == QtCore.Qt.Checked else PluginStatus.Inactive
Settings().setValue(tag, status)
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