When comments are refreshed, each `Comment` gets rendered 4-5 times due to reference invalidation for `othersReacts` (the data didn't actually change).
For selectors without transformation, there is no need to memoize using `createSelector` -- just access it directly. Also, don't do things like `return a[id] || {}` in a reducer, because the reference to the empty object will be different on each call.
Always return directly from the state so that the same reference is returned.
This simple change avoided the wasted resources needed for `createSelector`, and reduced to render to just 2 (initial render, and when reactions are fetched).
followedTags:
- Moved the filtering to the reducer side, so that we don't do it every time. We can't rely on `createSelector` because the store will be invalidated on each `USER_STATE_POPULATE`, unfortunately.
tags:
- Memoize via re-reselect for the "ForUri" selector.
`makeSelectDataForUri` always returns a new reference, so `ClaimPreview` was constantly being rendered. It's pretty expensive since `ClaimPreview`'s rendering checks against a huge blocklist, which is another issue on it's own.
- This commit tests the usage of `re-reselect` as the solution to the multi-instance memoization problem (https://github.com/toomuchdesign/re-reselect/blob/master/examples/1-join-selectors.md)
## Ticket
"Overall React Lag or Extra Re-renders / Volume slider laggy since v0.48"
## The problem
Every redux update results in each mounted component's prop mapping function (the `select` and `perform` stuff) to be recalculated. This is normal per redux, but we do lots of heavy stuff there.
The slider was sending tons of redux update for the Volume and Muted setting.
## Changes
The redux volume/muted setting is just used to restore vjs to the user's setting on the next video, so it doesn't need to be updated immediately/constantly -- vjs keeps it's own video settings. Debounced that action.
- 251 Dragging the floating player is super laggy
Recent changes and/or refactoring combined the effects or added dependancies into the effects, causing them to re-run excessively.
- Restored effects to their original behavior.
- Don't perform the position check when dragging -- only do it when released.
- Do proper debouncing for the 'resize' listener -- the previous method was incorrect as a new function is created on each render.
## Issue
60 setting.Get calls spiked since October
It was called 24 times per livestream page load.
## Notes
The effect was intended to be a one-time effect, but the dependency was changed in 2f4dedfb
## Issue
40 Linked comments doesn't scroll for deep replies
## Notes
Don't need an effect for this, plus it was causing the parent to not pick it up for auto-scrolling.
## Issues
- The current version of the link handler doesn't seem able to control the livestream player's position.
- The "live" position is always 0:00 and everything behind it is a negative timestamp. The current timestamp parser doesn't handle negative values.
* adding functionality to detect user download speed
* calculating bandwidth speed more intelligently
* saving download speed and updating it every 30s
* all the functionality should be done needs testing
* fix linting
* use a 1mb file for calculating bandwidth
* add optional chaining plugin to babel and get bitrate from texttrack
* allow optional chaining for flow
* ignore flow error
* disable bandwidth checking functionality
* fix flow error
* Add option to pass in url-search params.
Impetus: allow linked comment ID and setting the discussion tab when clicking on the `ClaimPreview`.
* comment.list: fix typos and renamed variables
- Switch from 'author' to 'creator' to disambiguate between comment author and content author. For comment author, we'll use 'commenter' from now on.
- Corrected 'commenterClaimId' to 'creatorClaimId' (just a typo, no functional change).
* doCommentReset: change param from uri to claimId
This reduces one lookup as clients will always have the claimID ready, but might not have the full URI.
It was using URI previously just to match the other APIs.
* Add doCommentListOwn -- command to fetch own comments
Since the redux slice is set up based on content or channel ID (for Channel Discussion page), re-use the channel ID for the case of "own comments". We always clear each ID when fetching page-0, so no worries of conflict when actually browsing the Channel Discussion page.
* Comment: add option to hide the actions section
* Implement own-comments page
* Use new param to remove sort-pins-first.
comment.List currently always pushes pins to the top to support pagination. This new param removes this behavior.
I think this the best solution so far, at the expense of a slight delay in scrolling if the network call stalls.
- Added "fetching by ID" state so that we don't need to use the ugly N-retries method.
- `scrollIntoView` doesn't work if the element is already in the viewport, and the `scrollBy` adjustment doesn't take into account the y-position restoration that we perform on certain type of pages. Use `window.scrollTo` instead and taking into account current scroll position.
* Add Channel Mention selection ability
* Fix mentioned user name being smaller than other text
* Improve logic for locating a mention
* Fix mentioning with enter on livestream
* Fix breaking for invalid URI query
* Handle punctuation after mention
* Fix name display and appeareance
* Use canonical url
* Fix missing search
* fix issue where viewcounts were creating a new line
* conditionally add large view css
* conditionally apply class based on if view count should be shown
* last couple touchups
* clean up the css
* add scss to flow config
* add scss component to flow config
It was being recalculated repeatedly.
This memoizes it, although it still re-calculates occasionally despite none of the source arrays changed. I think it is due to the state change in the Preference Sync.
Note: input selectors to `createSelector` needs to be extractions-only (i.e. must not have transformations). I think most of our `makeSelect*` selectors violate this and broke memoization.
## Issue
7176
## Changes
Pitfalls of pausing render via React.memo:
- We'll miss the `doClaimSearch()` since that is sparked by an `useEffect`.
Seems like we can't avoid having a redundant copy of the previously-displayed URIs.
## Ticket
7165 homepage queries don't take into account blocked channel ids (mute does)
## Changes
resolveSearchOptions: was not grabbing redux data correctly.
* ❌ Remove old method of displaying active livestreams
Completely remove it for now to make the commit deltas clearer.
We'll replace it with the new method at the end.
* Fetch and store active-livestream info in redux
* Tiles can now query active-livestream state from redux instead of getting from parent.
* ⏪ ClaimTilesDiscover: revert and cleanup
## Simplify
- Simplify to just `uris` instead of having multiple arrays (`uris`, `modifiedUris`, `prevUris`)
- The `prevUris` is for CLS prevention. With this removal, the CLS issue is back, but we'll handle it differently later.
- Temporarily disable the view-count fetching. Code is left there so that I don't forget.
## Fix
- `shouldPerformSearch` was never true when `prefixUris` is present. Corrected the logic.
- Aside: prefix and pin is so similar in function. Hm ....
* ClaimTilesDiscover: factor out options
## Change
Move the `option` code outside and passed in as a pre-calculated prop.
## Reason
To skip rendering while waiting for `claim_search`, we need to add `React.memo(areEqual)`. However, the flag that determines if we are fetching `claim_search` (fetchingClaimSearchByQuery[]) depends on the derived options as the key.
Instead of calculating `options` twice, we moved it to the props so both sides can use it.
It also makes the component a bit more readable.
The downside is that the prop-passing might not be clear.
* ClaimTilesDiscover: reduce ~17 renders at startup to just 2.
* ClaimTilesDiscover: fill with placeholder while waiting for claim_search
## Issue
Livestream claims are fetched seperately, so they might already exists. While claim_search is running, the list only consists of livestreams (collapsed).
## Fix
Fill up the space with placeholders to prevent layout shift.
* Add 'useFetchViewCount' to handle fetching from lists
This effect also stashes fetched uris, so that we won't re-fetch the same uris during the same instance (e.g. during infinite scroll).
* ⏪ ClaimListDiscover: revert and cleanup
## Revert
- Removed the 'finalUris' stuff that was meant to "pause" visual changes when fetching. I think it'll be cleaner to use React.memo to achieve that.
## Alterations
- Added `renderUri` to make it clear which array that this component will render.
- Re-do the way we fetch view counts now that 'finalUris' is gone. Not the best method, but at least correct for now.
* ClaimListDiscover: add prefixUris, similar to ClaimTilesDiscover
This will be initially used to append livestreams at the top.
* ✅ Re-enable active livestream tiles using the new method
* doFetchActiveLivestreams: add interval check
- Added a default minimum of 5 minutes between fetches. Clients can bypass this through `forceFetch` if needed.
* doFetchActiveLivestreams: add option check
We'll need to support different 'orderBy', so adding an "options check" when determining if we just made the same fetch.
* WildWest: limit livestream tiles + add ability to show more
Most likely this behavior will change in the future, so we'll leave `ClaimListDiscover` untouched and handle the logic at the page level.
This solution uses 2 `ClaimListDiscover` -- if the reduced livestream list is visible, it handles the header; else the normal list handles the header.
* Use better tile-count on larger screens.
Used the same method as how the homepage does it.
## Issue
If you navigated to a Channel Page and returned to the homepage (or any page with ClaimPreview), the view-count is shown because we have that data.
## Fix
Instead of passing props around through the long "list" component chain (`ChannelContent -> ClaimListDiscover -> ClaimList -> ClaimPreview`) to indicate whether we should display it , just check the pathname at the lowest component level; I believe eventually we would display it everywhere anyways, so this we'll be the easiest to clean up.
## Issue
7102 Failed to initialize numberformat on some browsers
## Changes
Just revert to the non-SI notation (but still locale aware) for browsers that does not support the `compactDisplay` option.
I thought of adding an English-only abbreviation for that corner-case, but I think it's not worth the effort maintaining. There are worse issues happening on older browsers, such as icons not aligning properly in buttons and functions that require polyfilling.
