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feat(GlDuoChat): support for slash commands

Denys Mishunov requested to merge 2364-duo-chat-slash-commands into main

What does this MR do?

The MR introduces the UI support for the slash commands in Duo Chat. Some notes:

  • the available commands are hardcoded in the component for now
  • the commands' list is shown when the prompt starts with / or if there is any command starting with the current prompt
  • the list allows the keyboard navigation with up/down arrows and Enter as the selection tool
  • the list is filterable and is updated when user types in more characters into a command
  • the component "translates" the slash commands to user-friendly text, using parameters of each command. For example, the prompt /refactor this code … is shown and stored as Refactor this code … user message in the chat

⚠ There is a known need for refactoring GlDuoChat component like extracting the whole prompt form, incl. the slash commands introduced here, into a separate component. However, considering this functionality needs to be delivered asap and within %16.6, this kind of refactoring will be taken as the next step.

Screenshots or screen recordings

slash-commands-2

How to test

  1. Go to the Review App (the link is under the pipeline status in the merge request widget below, something like http://2364-duo-chat-slash-commands.34.140.25.101.nip.io/ at the time of writing)
  2. In the Review App, in the left-hand navigation, go to Experimental/duo/chat/duo-chat/Interactive story.
  3. Try playing with the / in the prompt input

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  • Code review guidelines.
  • GitLab UI's contributing guidelines.
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  • If the MR changes a component's API, integration MR(s) have been opened (see integration merge requests above).
  • Added the ~"component:*" label(s) if applicable.

Security

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  • Label as security and @ mention @gitlab-com/gl-security/appsec
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Accessibility

If this MR adds or modifies a component, take a few moments to review the following:

  • All actions and functionality can be done with a keyboard.
  • Links, buttons, and controls have a visible focus state.
  • All content is presented in text or with a text equivalent. For example, alt text for SVG, or aria-label for icons that have meaning or perform actions.
  • Changes in a component’s state are announced by a screen reader. For example, changing aria-expanded="false" to aria-expanded="true" when an accordion is expanded.
  • Color combinations have sufficient contrast.

Closes #2364 (closed)

Edited by Denys Mishunov

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