Enable file picker for ownCloud Infinite Scale and therewith Spaces

[hodyroff]

Description

User Stories

• As a user who stores her files on ownCloud, I want to choose ownCloud-files from within other applications so that I don't need to leave my current context/app/tab/window.

• As a user, inside my single-sign on OIDC environment, I like to access a server with ownCloud Infinite Scale, rather then ownCloud 10 using the filepicker.

• As an ISV I like to include the file picker in my application to access both ownCloud 10 and ownCloud Infinite Scale.
  First step is to enable the same functions as with folders of a user today and the ability to browse personal, shared and all spaces I have see listed.

Value

Acceptance Criteria

• (If the backend is oc10) Initial view is "All files" (please rename "Home" to "All Files")
• (If the backend is ocis) We need a new Initial view "root":
  • Headline: "Files"
  • Listing (Order is 1st: "Personal", 2nd "Shares", then Spaces in alphabetical order)
    • Personal
    • Shares
    • Space 1
    • Space 2
    • Space n
• Breadcrumb: If the current location is not "Files", then show a left caret icon (<); click on < navigates to the parent folder/view
• Breadcrumb: If the current location is not "Files", show the name of the subfolder on top
• Resource listing if the location is not "Files": Folders on top (alphanumeric), then files.
• Rename Select Resource button to Coose

Technical Notes:

• We have a new major version 3 of the owncloud-sdk (for WebDAV v2)
• Graph Client is needed for listing Spaces https://github.com/owncloud/libre-graph-api-typescript-axios/ - this is typescript. filepicker is JS only at the moment.
• ownCloud Web has a package web-client, which is also published to npmjs.com at https://www.npmjs.com/package/@ownclouders/web-client - the web-client contains types for files and spaces and wraps the owncloud-sdk and graph client for easy API access. Can be used for oC10 and oCIS, so it's recommended to use that. But again, this is typescript.

Definition of ready

[ ] everybody needs to understand the value written in the user story
[ ] acceptance criteria has to be defined
[ ] all dependencies of the user story need to be identified
[ ] feature should be seen from an end user perspective
[ ] user story has to be estimated
[ ] story points need to be less then 20

Definition of done

• Functional requirements
  [ ] functionality described in the user story works
  [ ] acceptance criteria are fulfilled
• Quality
  [ ] code review happened
  [ ] CI is green
  [ ] critical code received unit tests by the developer
  [ ] automated tests passed (if automated tests are not available, this test needs to be created and passed
• Non-functional requirements
  [ ] no sonar cloud issues

Scribbles

[tbsbdr]

update: added Acceptance Criteria, scribble etc. in initial post

[kulmann]

feature-wise done by @LukasHirt 👏 still needs test coverage for this issue to be closed. Also to be done by @LukasHirt

[hodyroff]

Done with release 0.12

[kulmann]

Done with release 0.12

Please keep it open until basic test coverage is done. Those are in progress here #221