Is immutable.js compatible with this library? about webext-redux HOT 17 CLOSED

@abhinavzspace @vhmth The way that this library works is through Chrome Message Passing. This page states:

A message can contain any valid JSON object (null, boolean, number, string, array, or object).

This is most likely your issue. At the end of the day, as your data moves between event, content-scripts, and popovers, it is being serialized with .toJSON(). This will cause Immutable objects to be turned to normal JS objects.

I think there is a way we could add configuration parameters that would allow the "immutable type" to be passed with the payload, and then have the different components parse the objects back to their expected immutable before being passed around the app.

Would essentially need configuration on ProxyStore and store wrapper that would facilitate this as data is moved between them.

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@abhinavzspace mind posting some error traces? We should make this lib compatible with immutable

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I feel like parsing the serialized object back into immutable type on the view layer seems unnecessary. What's important is just, you can use immutable type in the store (your library seems to work with Immutable.js nicely already). Then on the react view layer, just get the state as if you are getting from a normal js object. You are not mutating it anyway. Just a thought.

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@EdmundLeex Great point! I completely agree with you :)

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@EdmundLeex I am doing exactly the way you mentioned. 👍

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Close issue button should not be too close to comment button...... :)

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BTW there is no need for compatibility with immutable.js. So it's not a real issue. Please close it if you feel like.

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@abhinavzspace Sounds good! Thank you :)

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What about shouldComponentUpdate ? How do we know if an object is the same or wether it has changed (when it has a deep structure)?
That was another great reason for me to use immutable objects.

Thanks.

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@SudoPlz that would be orthogonal to what @EdmundLeex was mentioning. If that's the case and you are afraid of mutations at the view layer in your content and popup scripts (which is something immutable says it protects against), we should probably go with the method of allowing for immutable types in a configuration option (like @tshaddix mentioned).

I would work on this, but, since we don't use immutable.js at Loom, it's hard to justify pushing this effort forward on my end vs. working on #65 (just being real). @SudoPlz or @abhinavzspace would either of y'all be interested in extending the store to allow for immutable data types?

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Hmm, not sure if I got @tshaddix 's answer right, but it seems to me that whenever the immutable is passed as a message, it's being serialised, and the solution would be to manually create a new Immutable after we receive an object from the store.

But that would mean that we'd always have a new immutable object, and the nextProps.anImmutable !== this.props.anImmutable would always return true;

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it seems to me that whenever the immutable is passed as a message, it's being serialised, and the solution would be to manually create a new Immutable after we receive an object from the store

yes, pretty much.

nextProps.anImmutable !== this.props.anImmutable shouldn't this be false if there is a difference if you just compare the serialized js object? Both would've been serialized by the time you compare them in the view layer.

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I think @SudoPlz is correct. nextProps.anImmutable would never equal this.props.anImmutable since the entire object is always serialized. This lib doesn't currently do "patches" to the store. That seems to be the only way to get this right.

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Bringing this issue back to life, as I am no longer able to use Immutable with this library. You cannot simply deserialize the store in the view layer with Immutable fromJS if your state uses non-standard data structures (i.e. OrderedMap). If there were hooks into where serialization happens on both ends of the sendMessage it wouldn't be hard to use something like https://github.com/glenjamin/transit-immutable-js to keep things Immutable across the stack.

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This got landed not too long ago:

#100

Not a fix, but should make things a bit less "horrible" for those relying on immutability (although not perfect - esp. for this case).

How are OrderedMaps usually handled in Redux? Is OrderedMap typically handled/serialized ok in other Redux apps? This is a noob question, but I'm trying to get a lay of immutable.js land.

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@vhmth Oh nice, will take a look at upgrading soon!

In your normal Redux application the Immutable OrderedMap object will retain it's shape (as in it will not be serialized before insertion into the store). This falls apart here across the chrome messaging port since it serializes complex objects. OrderedMap actually serializes to an object (which is obviously wrong, as you lose the order deserialization):

const om = new Immutable.OrderedMap([['foo', 1], ['bar', 2]])
JSON.stringify(om)
//=> "{"foo":1,"bar":2}"

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@corytheboyd this is super late, but is this still an issue for you? I won't be able to tackle this kinda functionality, but I wanna make sure this doesn't slip through the cracks.

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