diff -r 7ce2b8bb0d9b -r 630a173cb137 eric6/Tasks/TasksFile.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/eric6/Tasks/TasksFile.py Wed Jan 27 18:27:52 2021 +0100
@@ -0,0 +1,151 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2021 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a class representing the tasks JSON file.
+"""
+
+import json
+import time
+
+from PyQt5.QtCore import QObject
+
+from E5Gui import E5MessageBox
+from E5Gui.E5OverrideCursor import E5OverridenCursor
+from E5Gui.E5Application import e5App
+
+import Preferences
+
+
+class TasksFile(QObject):
+ """
+ Class representing the tasks JSON file.
+ """
+ def __init__(self, isGlobal: bool, parent: QObject = None):
+ """
+ Constructor
+
+ @param isGlobal flag indicating a file for global tasks
+ @type bool
+ @param parent reference to the parent object
+ @type QObject (optional)
+ """
+ super(TasksFile, self).__init__(parent)
+ self.__isGlobal = isGlobal
+
+ def writeFile(self, filename: str) -> bool:
+ """
+ Public method to write the tasks data to a tasks JSON file.
+
+ @param filename name of the tasks file
+ @type str
+ @return flag indicating a successful write
+ @rtype bool
+ """
+ # prepare the session data dictionary
+ # step 0: header
+ tasksDict = {}
+ tasksDict["header"] = {}
+ if self.__isGlobal:
+ tasksDict["header"] = {
+ "comment": "eric tasks file",
+ "saved": time.strftime('%Y-%m-%d, %H:%M:%S'),
+ "warning": (
+ "This file was generated automatically, do not edit."
+ ),
+ }
+ # step 1: project scan filter
+ tasksDict["ProjectScanFilter"] = ""
+
+ # step 2: tasks
+ tasksDict["Tasks"] = [
+ task.toDict()
+ for task in e5App().getObject("TaskViewer").getGlobalTasks()
+ ]
+ else:
+ tasksDict["header"] = {
+ "comment": "eric tasks file for project {0}".format(
+ e5App().getObject("Project").getProjectName()),
+ "warning": (
+ "This file was generated automatically, do not edit."
+ ),
+ }
+ # TODO: replace 'XMLTimestamp' by 'Timestamp'
+ if Preferences.getProject("XMLTimestamp"):
+ tasksDict["header"]["saved"] = (
+ time.strftime('%Y-%m-%d, %H:%M:%S')
+ )
+ # step 1: project scan filter
+ tasksDict["ProjectScanFilter"] = (
+ e5App().getObject("TaskViewer").getTasksScanFilter()
+ )
+
+ # step 2: tasks
+ tasksDict["Tasks"] = [
+ task.toDict()
+ for task in e5App().getObject("TaskViewer").getProjectTasks()
+ ]
+
+ try:
+ jsonString = json.dumps(tasksDict, indent=2)
+ with open(filename, "w") as f:
+ f.write(jsonString)
+ except (TypeError, EnvironmentError) as err:
+ with E5OverridenCursor():
+ E5MessageBox.critical(
+ None,
+ self.tr("Save Tasks"),
+ self.tr(
+ "<p>The tasks file <b>{0}</b> could not be"
+ " written.</p><p>Reason: {1}</p>"
+ ).format(filename, str(err))
+ )
+ return False
+
+ return True
+
+ def readFile(self, filename: str) -> bool:
+ """
+ Public method to read the tasks data from a task JSON file.
+
+ @param filename name of the project file
+ @type str
+ @return flag indicating a successful read
+ @rtype bool
+ """
+ try:
+ with open(filename, "r") as f:
+ jsonString = f.read()
+ tasksDict = json.loads(jsonString)
+ except (EnvironmentError, json.JSONDecodeError) as err:
+ E5MessageBox.critical(
+ None,
+ self.tr("Read Tasks"),
+ self.tr(
+ "<p>The tasks file <b>{0}</b> could not be read.</p>"
+ "<p>Reason: {1}</p>"
+ ).format(filename, str(err))
+ )
+ return False
+
+ viewer = e5App().getObject("TaskViewer")
+ if tasksDict["ProjectScanFilter"]:
+ viewer.setTasksScanFilter(tasksDict["ProjectScanFilter"])
+
+ addedTasks = []
+ for task in tasksDict["Tasks"]:
+ addedTask = viewer.addTask(
+ task["summary"], priority=task["priority"],
+ filename=task["filename"], lineno=task["lineno"],
+ completed=task["completed"], _time=task["created"],
+ isProjectTask=not self.__isGlobal, taskType=task["type"],
+ description=task["description"], uid=task["uid"],
+ parentTask=task["parent_uid"])
+ addedTasks.append((addedTask, task["expanded"]))
+
+ for task, expanded in addedTasks:
+ task.setExpanded(expanded)
+
+ return True
