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#
# This document *and this document only* uses the Qt naming convention instead
# of PEP because the PyQt5 bindings do not have pythonic names
#
import sys
import json
import enum
import html
import logging
from PyQt5.QtGui import QFont
from PyQt5.Qt import QStyle
from PyQt5.QtCore import Qt, QThread, pyqtSlot, pyqtSignal, QObject
from PyQt5.QtWidgets import QApplication, QWidget, QTreeWidget, QTreeWidgetItem, QTreeWidgetItemIterator, QGridLayout, QHBoxLayout, QPushButton, QProgressBar, QTabWidget, QPlainTextEdit
import moodle
log = logging.getLogger("muddle.gui")
class MoodleItem(QTreeWidgetItem):
class Type(enum.IntEnum):
ROOT = 0
# root
COURSE = 1
# sections
SECTION = 2
# modules
MODULE = 3
## specific module types
FORUM = 4
RESOURCE = 5
FOLDER = 6
ATTENDANCE = 7
LABEL = 8
QUIZ = 9
# contents
CONTENT = 10
## specific content types
FILE = 11
URL = 12
class Metadata:
def __init__(self, **kwargs):
for k, v in kwargs.items():
setattr(self, k, v)
def __init__(self, parent, nodetype, leaves=[], **kwargs):
super().__init__(parent)
self.metadata = MoodleItem.Metadata(type = nodetype, **kwargs)
self.setupQt()
def setupQt(self):
font = QFont("Monospace")
font.setStyleHint(QFont.Monospace)
self.setFont(0, font)
icons = {
MoodleItem.Type.COURSE : QStyle.SP_DriveNetIcon,
MoodleItem.Type.FOLDER : QStyle.SP_DirIcon,
MoodleItem.Type.RESOURCE : QStyle.SP_DirLinkIcon,
MoodleItem.Type.FILE : QStyle.SP_FileIcon,
MoodleItem.Type.URL : QStyle.SP_FileLinkIcon,
}
if icons.get(self.metadata.type):
self.setIcon(0, QApplication.style().standardIcon(icons[self.metadata.type]))
flags = self.flags()
if self.metadata.type in [ MoodleItem.Type.FILE, MoodleItem.Type.FOLDER, MoodleItem.Type.RESOURCE ]:
self.setFlags(flags | Qt.ItemIsUserCheckable | Qt.ItemIsAutoTristate)
self.setCheckState(0, Qt.Unchecked)
else:
self.setFlags(flags & ~Qt.ItemIsUserCheckable)
self.setChildIndicatorPolicy(QTreeWidgetItem.DontShowIndicatorWhenChildless)
self.setText(0, html.unescape(self.metadata.title))
class MoodleFetcher(QThread):
loadedItem = pyqtSignal(MoodleItem.Type, object)
def __init__(self, parent, instance_url, token):
super().__init__()
self.api = moodle.RestApi(instance_url, token)
self.apihelper = moodle.ApiHelper(self.api)
def run(self):
# This is beyond bad but I don't have access to the moodle documentation, so I had to guess
for course in self.getCourses():
self.loadedItem.emit(MoodleItem.Type.COURSE, course)
for section in self.getSections(course):
self.loadedItem.emit(MoodleItem.Type.SECTION, section)
for module in self.getModules(section):
self.loadedItem.emit(MoodleItem.Type.MODULE, module)
for content in self.getContent(module):
self.loadedItem.emit(MoodleItem.Type.CONTENT, content)
def getCourses(self):
coursesReq = self.api.core_enrol_get_users_courses(userid = self.apihelper.get_userid())
if not coursesReq:
return []
return coursesReq.json()
def getSections(self, course):
if not "id" in course:
log.error("cannot get sections from invalid course (no id)")
log.debug(course)
return []
sectionsReq = self.api.core_course_get_contents(courseid = str(course["id"]))
if not sectionsReq:
return
sections = sectionsReq.json()
return sections
def getModules(self, section):
if "modules" in section:
return section["modules"]
else:
return []
def getContent(self, module):
if "contents" in module:
return module["contents"]
else:
return []
class MoodleTreeView(QTreeWidget):
def __init__(self, parent, instance_url, token):
super().__init__(parent)
self.lastInsertedItem = None
self.initUi()
self.worker = MoodleFetcher(self, instance_url, token)
self.worker.loadedItem.connect(self.onWorkerLoadedItem)
self.worker.finished.connect(self.onWorkerDone)
self.worker.start()
self.show()
def initUi(self):
self.setHeaderHidden(True)
self.itemDoubleClicked.connect(self.onItemDoubleClicked, Qt.QueuedConnection)
@pyqtSlot(QTreeWidgetItem, int)
def onItemDoubleClicked(self, item, col):
log.debug(f"double clicked on item with type {str(item.metadata.type)}")
if item.type == MoodleItem.Type.FILE:
# TODO: download in a temp folder and open
pass
@pyqtSlot(MoodleItem.Type, object)
def onWorkerLoadedItem(self, type, item):
# Assume that the items arrive in order
moodleItem = None
parent = None
if type == MoodleItem.Type.COURSE:
moodleItem = MoodleItem(parent = parent, nodetype = type, id = item["id"], title = item["shortname"])
self.addTopLevelItem(moodleItem)
else:
parent = self.lastInsertedItem
while type <= parent.metadata.type and parent.parent():
parent = parent.parent()
if type == MoodleItem.Type.SECTION:
moodleItem = MoodleItem(parent = parent, nodetype = type, id = item["id"], title = item["name"])
elif type == MoodleItem.Type.MODULE:
moduleType = {
"folder" : MoodleItem.Type.FOLDER,
"resource" : MoodleItem.Type.RESOURCE,
"forum" : MoodleItem.Type.FORUM,
"attendance" : MoodleItem.Type.ATTENDANCE,
"label" : MoodleItem.Type.LABEL,
"quiz" : MoodleItem.Type.QUIZ,
}
moodleItem = MoodleItem(parent = parent, nodetype = moduleType.get(item["modname"]) or type, id = item["id"], title = item["name"])
elif type == MoodleItem.Type.CONTENT:
contentType = {
"url" : MoodleItem.Type.URL,
"file" : MoodleItem.Type.FILE,
}
moodleItem = MoodleItem(parent = parent, nodetype = contentType.get(item["type"]) or type, title = item["filename"], url = item["fileurl"])
if not moodleItem:
log.error(f"Could not load item of type {type}")
return
self.lastInsertedItem = moodleItem
@pyqtSlot()
def onWorkerDone(self):
log.debug("worker done")
self.sortByColumn(0, Qt.AscendingOrder)
self.setSortingEnabled(True)
class QLogHandler(QObject, logging.Handler):
newLogMessage = pyqtSignal(str)
def emit(self, record):
msg = self.format(record)
self.newLogMessage.emit(msg)
def write(self, m):
pass
class Muddle(QTabWidget):
def __init__(self, instance_url, token):
super().__init__()
self.instance_url = instance_url
self.token = token
self.initUi()
def initUi(self):
self.setWindowTitle("Muddle")
# moodle tab
self.tabmoodle = QWidget()
self.addTab(self.tabmoodle, "Moodle")
self.tabmoodle.setLayout(QGridLayout())
self.tabmoodle.layout().addWidget(MoodleTreeView(self, self.instance_url, self.token), 0, 0, 1, -1)
# TODO: make number of selected element appear
# TODO: add path selector, to select where to download the files
self.tabmoodle.downloadbtn = QPushButton("Download")
self.tabmoodle.selectallbtn = QPushButton("Select All")
self.tabmoodle.deselectallbtn = QPushButton("Deselect All")
self.tabmoodle.progressbar = QProgressBar()
self.tabmoodle.layout().addWidget(self.tabmoodle.downloadbtn, 1, 0)
self.tabmoodle.layout().addWidget(self.tabmoodle.selectallbtn, 1, 1)
self.tabmoodle.layout().addWidget(self.tabmoodle.deselectallbtn, 1, 2)
self.tabmoodle.layout().addWidget(self.tabmoodle.progressbar, 2, 0, 1, -1)
# log tabs
self.loghandler = QLogHandler(self)
self.loghandler.setFormatter(logging.Formatter("%(name)s - %(levelname)s - %(message)s"))
self.loghandler.newLogMessage.connect(self.onNewLogMessage)
logging.getLogger("muddle").addHandler(self.loghandler)
font = QFont("Monospace")
font.setStyleHint(QFont.Monospace)
self.logtext = QPlainTextEdit()
self.logtext.setReadOnly(True)
self.logtext.setFont(font)
self.addTab(self.logtext, "Logs")
self.show()
@pyqtSlot(str)
def onNewLogMessage(self, msg):
self.logtext.appendPlainText(msg)
def start(instance_url, token):
app = QApplication(sys.argv)
ex = Muddle(instance_url, token)
sys.exit(app.exec_())
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