Prior to this commit we were loading a large number of thread messages without any pagination. This commit attempts to fix this and also improves the following points:
- code sharing between channels and threads:
Attempts to reuse/share the code use in channels for threads. To make it possible part of this code has been extracted in dedicated helpers or has been improved to reduce the duplication needed.
Examples of extracted helpers:
- `stackingContextFix`: the ios hack for rendering bug when momentum scrolling is interrupted
- `scrollListToMessage`, `scrollListToTop`, `scrollListToBottom`: a series of helper to correctly scroll to a specific position in the list of messages
- better general performance of listing messages:
One of the main changes which has been made is to remove the computation of visible message during scroll, it will only happen when needed (update last read for example). This constant recomputation of `message.visible` on intersection observer event while scrolling was consuming a lot of CPU time.
* Moved the settings cog from thread list to thread and
put it in a new header component
* Remove thread original message component, no longer needed
and the list item and thread indicator styles/content
will be quite different
* Start adding content (unread indicator etc.) to the thread
list item and changing structure to be more like designs
* Serialize the last thread reply when opening the thread index,
show in list and update with message bus
This commit also removes safe-area-inset-bottom when keyboard is displayed to avoid having a taller than needed space between composer and replying indicator.
This feature adds the replying indicator in threads, it uses the same `/chat-reply/CHANNEL_ID` prefix than the channel composer replying indicator as we don't have specific right on threads ATM (if you can access channel, you can access thread). Thread will however use a presence channel name of the following format: `/chat-reply/CHANNEL_ID/thread/THREAD_ID`
This commit also simplifies the computation of `users` to eventually avoid a race-condition leading to a leak of the indicator in another channel/thread.
<!-- NOTE: All pull requests should have tests (rspec in Ruby, qunit in JavaScript). If your code does not include test coverage, please include an explanation of why it was omitted. -->
- do not render sidepanel resizer as it's not usable on mobile
- removes 1px to the bottom spacing, this spacing won't be necessary once we implement chat-replying-indicator for thread
This commit implements all the necessary logic to create thread seamlessly. For this it relies on the same logic used for messages and generates a `staged-id`(using the format: `staged-thread-CHANNEL_ID-MESSAGE_ID` which is used to re-conciliate state client sides once the thread has been persisted on the backend.
Part of this change the client side is now always using real thread and channel objects instead of sometimes relying on a flat `threadId` or `channelId`.
This PR also brings three UX changes:
- thread starts from top
- number of buttons on message actions is dependent of the width of the enclosing container
- <kbd>shift + ArrowUp</kbd> will reply to the last message
Prior to this fix uploads event could end up in the wrong textarea. This will most importantly allow pasting an image in the thread composer.
Also fixes a minor padding issue on thread when uploads are associated to it.
This pull request is a full overhaul of the chat-composer and contains various improvements to the thread panel. They have been grouped in the same PR as lots of improvements/fixes to the thread panel needed an improved composer. This is meant as a first step.
### New features included in this PR
- A resizable side panel
- A clear dropzone area for uploads
- A simplified design for image uploads, this is only a first step towards more redesign of this area in the future
### Notable fixes in this PR
- Correct placeholder in thread panel
- Allows to edit the last message of a thread with arrow up
- Correctly focus composer when replying to a message
- The reply indicator is added instantly in the channel when starting a thread
- Prevents a large variety of bug where the composer could bug and prevent sending message or would clear your input while it has content
### Technical notes
To achieve this PR, three important changes have been made:
- `<ChatComposer>` has been fully rewritten and is now a glimmer component
- The chat composer now takes a `ChatMessage` as input which can directly be used in other operations, it simplifies a lot of logic as we are always working a with a `ChatMessage`
- `TextareaInteractor` has been created to wrap the existing `TextareaTextManipulation` mixin, it will make future migrations easier and allow us to have a less polluted `<ChatComposer>`
Note ".chat-live-pane" has been renamed ".chat-channel"
Design for upload dropzone is from @chapoi
This commit introduces a ChatChannelPaneSubscriptionsManager
and a ChatChannelThreadPaneSubscriptionsManager that inherits
from the first service that handle MessageBus subscriptions
for the main channel and the thread panel respectively.
This necessitated a change to Chat::Publisher to be able to
send MessageBus messages to multiple channels based on whether
a message was an OM for a thread, a thread reply, or a regular
channel message.
An initial change to update the thread indicator with new replies
has been done too, but that will be improved in future as we have
more data to update on the indicators.
Still remaining is to fully move over the handleSentMessage
functionality which includes scrolling and new message indicator
things.
Co-authored-by: Joffrey JAFFEUX <j.jaffeux@gmail.com>
This commit is a major overhaul of how chat message actions work, to make it so they are reusable between the main chat channel and the chat thread panel, as well as many improvements and fixes for the thread panel.
There are now several new classes and concepts:
* ChatMessageInteractor - This is initialized from the ChatMessage, ChatMessageActionsDesktop, and ChatMessageActionsMobile components. This handles permissions about what actions can be done for each
message based on the context (thread or channel), handles the actions themselves (e.g. copyLink, delete, edit),
and interacts with the pane of the current context to modify the UI
* ChatChannelThreadPane and ChatChannelPane services - This represents the UI context which contains the
messages, and are mostly used for state management for things like message selection.
* ChatChannelThreadComposer and ChatChannelComposer - This handles interaction between the pane, the
message actions, and the composer, dealing with reply and edit message state.
* Scrolling logic for the messages has now been moved to a helper so it can be shared between the main channel pane and the thread pane
* Various improvements with the emoji picker on both mobile and desktop. The DOM node of each component is now located outside of the message which prevents a large range of issues.
The thread panel now also works in the chat drawer, and the thread messages have less
actions than the main panel, since some do not make sense there (e.g. moving messages to
a different channel). The thread panel title, excerpt, and message sender have also been removed
for now to save space.
This gives us a solid base to keep expanding on and fixing up threads. Subsequent PRs will
make the thread MessageBus subscriptions work and disable echo mode
for the initial release of threads.
Co-authored-by: Joffrey JAFFEUX <j.jaffeux@gmail.com>
This commit introduces the skeleton of the chat thread UI. The
structure of the components looks like this. Its done this way
so the side panel can be used for other things as well if we wish,
not just for threads:
```
.main-chat-outlet
<ChatLivePane />
<ChatSidePanel>
<-- rendered with {{outlet}} -->
<ChatThread />
</ChatSidePanel>
```
Later on the `ChatThreadList` will be rendered here as well.
Now, when you go to a channel you can open a thread by clicking
on either the Open Thread message action button or by clicking on
the reply indicator. This will take you to a route like `chat/c/:slug/:channelId/t/:threadId`.
This works on mobile as well.
This commit includes basic serializers and routes for threads,
as well as a new `ChatThreadsManager` service in JS that caches
threads for a channel the same way the channel threads manager does.
The chat messages inside the thread are intentionally left out
until a later PR.
**NOTE: These changes are gated behind the site setting enable_experimental_chat_threaded_discussions
and the threading_enabled boolean on a ChatChannel**
