This is an attempt at #1989. The big issue there is when `shapeUtils`
change when you're relying on tldraw to provide you with the store
instead of providing your own. Our `useTLStore` component had a bug
where it would rely on effects & a ref to detect when its options had
changed whilst still scheduling updates. Fresh opts would come in, but
they'd be different from the ones in the ref, so we'd schedule an
update, so the opts would come in again, but they'd still be different
as we hadn't run effects yet, and we'd schedule an update again (and so
on).
This diff fixes that by storing the previous opts in state instead of a
ref, so they're updating in lockstep with the store itself. this
prevents the update loop.
There are still situations where we can get into loops if the developer
is passing in custom tools, shapeUtils, or components but not memoising
them or defining them outside of react. As a DX improvement, we do some
auto-memoisation of these values using shallow equality to help with
this issue.
### Change Type
- [x] `patch` — Bug fix
### Test Plan
- [x] Unit Tests
### Release Notes
- Fixes a bug that could cause crashes due to a re-render loop with HMR
#1989
This diff tweaks our `debugFlags` framework to support setting different
default value for different environments, makes it easier to define
feature flags, and makes feature flags show up in the debug menu by
default. With this change, feature flags will default to being enabled
in dev and preview environments, but disabled in production.
Specify a feature flag like this:
```ts
const featureFlags = {
myCoolNewFeature: createFeatureFlag('myCoolNewFeature')
}
```
optionally, pass a second value to control its defaults:
```ts
const featureFlags = {
featureEnabledInProduction: createFeatureFlag('someFeature', { all: true }),
customEnabled: createFeatureFlag('otherFeature', {development: true, staging: false, production: false}),
}
```
In code, the value can be read using `featureFlags.myFeature.value`.
Remember to wrap reading it in a reactive context!
### Change Type
- [x] `patch` — Bug Fix
### Test Plan
-
### Release Notes
[internal only change]
Right now this examples app looks exactly the same as our old examples
app, but there are a couple of tiny differences:
- We use `vite` instead of our own esbuild setup for development and
bundling
- We use `@tldraw/assets` for smart asset hashing instead of copying the
assets to a public folder
You can use `@tldraw/assets` with vite with a bunch of extra config, but
it (plus a bunch of other bundlers) also support a special syntax for
specifying asset urls: `new URL('./my/asset.svg',
import.meta.url).href`. This approach is more standards-complient, but
doesn't work with every bundler just yet. This diff also adds a
url-based version of `@tldraw/assets`, although I'd like to tweak the
entry point - right now you need to import from
`@tldraw/assets/lib/urls`, but i'd like to find a way to get this to
`@tldraw/assets/urls` or something at some point.
There are a couple other extra fixes in here:
- vscode builds were broken, they're fixed now!
- there's also a little tweak to the `getBundlerAssetUrls` API to allow
passing in a function instead of an object for URL formatting
- there are new internal-only functions for injecting asset urls
globally instead of passing them in via react props. this means we can
get the benefits of cacheable URLs without having to clutter our
examples by passing them in
