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matrix-spec-proposals/drafts/use_cases.rst

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General UI/UX requirements:
===========================
- Live updates
- No flicker:
* Sending message (local echo)
* Receiving images (encoding w/h)
* Scrollback
* Resolving display names (from user ID)
- Fast startup times
- Fast "opening room" times (esp. when clicking through from a notification)
- Low latency file transfer.
#1 Web client UI
================
Model::
Rooms ----< Messages
- name - type (call/image)
- topic
Home Screen
What's visible:
- Recent chats ordered by timestamp of latest event (with # users)
- Your own display name, user ID and avatar url
- A list of public rooms (with # users and alias + room name + room topic)
What you can do:
- Create a room (public/private, with alias)
- Join a room from alias
- Message a user (with user ID)
- Leave a recent room
- Open a room
Chat Screen
What's visible:
- Enough scrollback to fill a "screen full" of content.
- Each message: timestamp, user ID, display name at the time the message was
sent, avatar URL at the time the message was sent, whether it was a bing message
or not.
- User list: for each user: presence, current avatar url in the room, current
display name in the room, power level, ordered by when they were last speaking.
- Recents list: (same as Home Screen)
- Room name
- Room topic
- Typing notifications
- Desktop/Push Notifications for messages
What you can do:
- Invite a user
- Kick a user
- Ban/Unban a user
- Leave the room
- Send a message (image/text/emote)
- Change someone's power level
- Change your own display name
- Accept an incoming call
- Make an outgoing call
- Get older messages by scrolling up (scrollback)
- Redact a message
- Resend a message which was not sent
Message sending:
- Immediate local echo
- Queue up messages which haven't been sent yet
- Reordering local echo to where it actually happened
VoIP:
- One entry in your display for a call (which may contain duration, type, status)
- Glare resolution
Scrollback:
- Display in reverse chronological order by the originating server's timestamp
- Terminates at the start of the room (which then makes it impossible to request
more scrollback)
Local storage:
- Driven by desire for fast startup times and minimal network traffic
- Display messages from storage and from the network without any gaps in messages.
- Persist scrollback if possible: Scrollback from storage first then from the
network.
Notifications:
- Receive notifications for rooms you're interested in (explicitly or from a default)
- Maybe per device.
- Maybe depending on presence (e.g. idle)
- Maybe depending on message volume
- Maybe depending on room config options.
Message contents:
- images
- video
- rich text
- audio
- arbitrary files
- location
- vcards (potentially)
User screen
What's visible:
- Display name
- Avatar
- User ID
What you can do:
- Start a chat with the user
#2 Bug tracking UI
==================
Model::
Projects ----< Issues ---< Comments
- key - summary - user
- name - ID - message
SYN SYN-52 Fix it nooow!
Landing page
What's visible:
- Issues assigned to me
- Issues I'm watching
- Recent activity on other issues (not refined to me)
- List of projects
What you can do:
- View an issue
- Create an issue
- Sort issues
- View a user
- View a project
- Search for issues (by name, time, priority, description contents, reporter, etc...)
Issue page
What's visible:
- Summary of issue
- Issue key
- Project affected
- Description
- Comments
- Priority, labels, type, purpose, etc..
- Reporter/assignee
- Creation and last updated times
- History of issue changes
What you can do:
- Comment on issue
- Change issue info (labels, type, purpose, etc..)
- Open/Close/Resolve the issue
- Edit the issue
- Watch/Unwatch the issue
#3 Forum UI
===========
Model::
Forum ----< Boards ----< Threads ----< Messages
- Matrix - Dev - HALP! - please halp!
Main page
What's visible:
- Categories (containing boards)
- Boards (with names and # posts and tagline and latest post)
What you can do:
- View a board
- View the latest message on a board
Board page
What's visible:
- Threads (titles, OP, latest post date+author, # replies, # upvotes, whether
the OP contains an image or hyperlink (small icon on title))
- Whether the thread is answered (with link to the answer)
- Pagination for posts within a thread (1,2,3,4,5...10)
- Pagination for threads within a board
- List of threads in chronological order
- Stickied threads
What you can do:
- View a user
- View a thread on a particular page
- View the latest message on a thread
- View older threads (pagination)
- Search the board
Thread page
What's visible:
- Messages in chronological order
- For each message: author, timestamp, # posts by author, avatar, registration
date, status message, message contents, # views of message
What you can do:
- Upvote the message
- Flag the message for a mod
- Reply to the message
- Subscribe to thread or message's RSS feed
- Go to previous/next thread
#4 Google+ community
====================
Model::
Community -----< Categories ----< Posts ---< Comments
Kerbal SP Mods, Help Text Text
(no title!)
Communities page
What's visible:
- List of communities
- For each community: # users, # posts, group pic, title
What you can do:
- Join a community
- View a community
Community Page
What's visible:
- Title, pic
- List of categories
- List of members with avatars (+ total #)
- Most recent posts with comments (most recent comment if >1)
What you can do:
- Join the group
- Post a post (with voting and options)
- Report abuse
- View member
- Expand comments
- Infinite scrolling
- Add a comment to a post
- Share a post
- +1 a post