- selectMyChannelClaims depends on `byId`, which currently is always invalidated per update, so it is not memoized.
- Most of the use-cases just needs the ID or the length of the array anyways, so avoid generating a Claim array (in selectMyChannelClaims) unnecessarily -- the client need to reduce it back down to IDs again :/
- The simpler boolean also removes the need to memoize the selector, which saves a bit of memory.
Co-authored-by: infinite-persistence <inf.persistence@gmail.com>
* Attempt to speed up sidebar menu for mobile (#283)
* Exclude default homepage data at compile time
The youtuber IDs alone is pretty huge, and is unused in the `CUSTOM_HOMEPAGE=true` configuration.
* Remove Desktop items and other cleanup
- Moved constants out of the component.
- Remove SIMPLE_SITE check.
- Remove Desktop-only items
* Sidebar: limit subscription and tag section
Too slow for huge lists
Limit to 10 initially, and load everything on "Show more"
* Fix makeSelectThumbnailForUri
- Fix memo
- Expose function to extract directly from claim if client already have it.
* Fix and optimize makeSelectIsSubscribed (#273)
- It will not return true if the uri provided is canonical, because the compared subscription uri is in permanent form. This was causing certain elements like the Heart to not appear in claim tiles.
- It is super slow for large subscriptions not just because of the array size + being a hot selector, but also because it is looking up the claim twice (not memo'd) and also calling `parseURI` to determine if it's a channel, which is unnecessary if you already have the claim.
- Optimize the selector to only look up the claim once, and make operations using already-obtained info.
* Simplify makeSelectTitleForUri
No need to memo given no transformation.
* Simplify makeSelectIsUriResolving
- Memo not required. `resolvingUris` is very dynamic and is a short array anyways.
- Changeg from using `indexOf` to `includes`, which is more concise.
* Cost Info selector fixes
- no memo required since they are just directly accessing the store.
Co-authored-by: infinite-persistence <64950861+infinite-persistence@users.noreply.github.com>
Co-authored-by: infinite-persistence <inf.persistence@gmail.com>
Frequently used; top in perf profile
Most of the time, you already have the claim object in the current context. `selectClaimIsMineForUri` will retrieve the claim again, which is wasteful, even if it is memoized (looking up the cache still takes time).
Break apart the logic and added the alternative `selectClaimIsMine` for faster lookup.
Co-authored-by: infinite-persistence <inf.persistence@gmail.com>
lbry-desktop--6844
This negates 49abbecb.
Now that we have a dedicated chromecast button, we don't need to hack Chrome's default cast button to appear on top of vjs-mobile-ui. The hack no longer works anyway, since the CSS exposure has been deprecated around mid 2020 -- it is still available, but its abilities has become less and less.
* changed behavior of a MenuButton. now it shows drop down on click not on mouse down
* fix 'Enter' key handling
* changed behavior of a MenuButton. now it shows drop down on click not on mouse down
* fix 'Enter' key handling
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
