[WIP] Manual sorting

[raimund-schluessler]

This PR aims to implement the possibility to manualls sort the task list by drag-and-drop and will fix #86.

TODOs:

• Enable manually sorting tasks in the list view
• Fix sorting of tasks when list is ordered in reverse
• Enable sorting tasks in collection views
• Enable sorting of subtasks
• Automatically switch to manual sorting if a task is dragged

Continues from owncloud/tasks#358

[charlag]

Is this going to be developed or it will be part of #194 ?

[raimund-schluessler]

Is this going to be developed or it will be part of #194 ?

#194 Is meant to port the app to Vue.js providing the same features as before. It will not have major new features, only small things which have to be reimplemented anyway will be changed/improved. New features will be implemented after #194 is done.

[raimund-schluessler]

Closing as it needs to be adjusted to the Vue rewrite first.

[waynema02]

As #194 has been closed, would this PR be reopened and worked on? Manual sorting really helps to organize the tasks in flexible manner. Thanks!

[dohlin]

Any update on whether this can be re-opened and reviewed? This is a much needed feature imho

[raimund-schluessler]

The current PR is #237. But there is nothing to review yet, needs to be developed.