Plan

[bmarty]

This is the current plan, which will also help to track progress

• We want to validate and de-risk that using the Rust SDK is possible (and easy!) and performance are good.
• We want to use Jetpack Compose
• We want to spend no more than 4 weeks to do that

Goals

• Repo setup
• README that explain the plan (or link to this issue maybe)
• Android project setup. min API33. We will use a new appId io.element.android.x
• Share debug signature. We will need a release version for performance
• SDK rust & wrapper in https://github.com/matrix-org/matrix-rust-sdk/tree/main/bindings (a new folder will be created here). The library (aar) is published with this action. The API is defined here. Doc of the SDK: https://matrix-org.github.io/matrix-rust-sdk/matrix_sdk
• We will use ViewModel, where object from Rust SDK will be injected.
• We will limit abstration to be fast, and may iterate later.

Design

https://www.figma.com/file/urDzUwqbnLNuXmqg7hYB83/Element-X-%5BEX1%5D?node-id=1561%3A58213&t=oE1ahxhCa9Vm2iU4-0

Screens

There will be 3 screens in this application, each in a separate gradle module

• Simple login with Compose (no new auth screen)
  • carroussel
  • wireframe
  • polished
  • server selection
  • internal module navigation -> Postponed. Not resolved yet. Will be required as an example for others
• Room list
  • placeholder with a fake list
  • polished (Enough done.)
  • pagination -> Postponed. EIX is experimenting it
  • burger menu to sign out
    • with confirmation dialog
  • search v1 where we filter on displayed items (enough for demoing)
  • display name
  • last message if decrypted
• Timeline
  • polished (Enough done. Figma is not up-to-date)
    • Extended bubbles width
    • corner radii
  • backward pagination (when the loader is displayed)
  • Images
  • Reactions display
  • Text message including HTML
  • Replies (bubble in bubble)
  • Contextual menu
    • bottom sheet
    • (Copy)
    • (Quote (optional))
    • (Permalink)
    • Reply
    • Edit
    • Redact (with no reason)
• Text composer (Markdown is supported by the SDK)
  • Text/MD
  • Edit
  • Reply
  • (Image with picker. We can reuse the plus button) . Not available in Rust SDK
• (Minimal design kit where we define constants (maybe a figma export) to quick tuning) -> Postponed. Need design input first
  • (colors)
  • (Font & Font size)
• App icon (black variation of EA)
• Release build to check performance

Other

• Setup nightly builds on Firebase and github action

TBD

• Device verification
• History decryption
• How long will run this demo app?

No goals

• no DI, except if it's very fast to setup (to be discussed - maybe give a try to anvil)
• no time spent on DevX and CI
• Loose time outside room list and timeline screens
• DesignKit. We do not have it for android. It will be a separate tasks
• WYSIWYG views in compose
• Icons. We reuse material ones
• No OIDC