Allow additional tasks states and filtering by states

[sytone]

Goal

When toggling a task, it should be able to move through more states than Todo (- [ ]) or Done (- [x]). This new feature will allow users to provide additional states with - [-] and - [/] being available by default.

Design

When a task is marked as completed it will always match - [x] in alignment with GFM.

To implement this the following sections of the plugin will be updated.

• The settings and settings UI. This will allow users to add other status values to be allowed.
• The task object will have a new states object to track the state and the character representing the state.
• The toggle action would be updated to rotate though the task states. There will be an option to enable/disable this.
• Update the task UI to allow the new states to be shown.

Pending Options

• Allow additional user specified state transitions. This would allow the user to state which state would be rotated through based on the current state of the task.

[quarkquartet]

+1. This could be helpful.

[sytone]

@quarkquartet the PR is pretty much done now and needs review, you can clone and run a local build if you want to test it out.

[quarkquartet]

@sytone Thanks. I'll take a look asap when I have time.

[schemar]

Thank you for the idea @sytone. This could be a duplicate. Did you check?

[sytone]

Could not see an explicit item, there was a issue to track it as well.

[claremacrae]

This was just released, in Tasks 1.23.0 🎉
https://github.com/obsidian-tasks-group/obsidian-tasks/releases/tag/1.23.0
See the links in that release page for copious docs and tips.