[Web] Search on current folder

[tbsbdr]

Description

relates: f22428c

User Stories

• As CERN I only want to provide a filter for the current folder so that system load is kept low.

Value

• if no backend side search is available, at least let users filter the current folder.
• prepare to register other search providers like elastic search

Acceptance Criteria

• search providers can be registered as an extension
• Add devdocs how to get started with extension registration for search

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

[kulmann]

@diocas @elizavetaRa please confirm our assumption that the preview (= drop down under the search input field) is sufficient and you don't need a search result page... or provide corrected acceptance criteria.

[diocas]

That is correct and corresponds to our current implementation.

[tbsbdr]

• Search can currently have different providers via a extensions
• in theory it should be possible that cern can register its own search (~ search only the current folder)
• needs testing if adding a different search provider works as described above

[JammingBen]

Closing here since it has been implemented (see cernbox/web-extensions#22).