Summary: It turns out that just only props is not enought to build an initial state value in some cases for some component. Seems we need at least `surfaceId` and `eventEmitter` in some cases (which seems totally reasonable). So, seems using the whole `ShadowNodeFragment` for that purpose is a good choise.
Reviewed By: mdvacca
Differential Revision: D15039135
fbshipit-source-id: d9a5f47f971ccf6cdb2f888bd31f7948b37b67ef
Summary: `getContextContainer` should be marked as const so that const instances can call it.
Reviewed By: shergin
Differential Revision: D14969981
fbshipit-source-id: 8812f24ecf0642a38496580689943fbd43cddad1
Summary:
Registries, providers, providers of registries, registres of providers. All that can be really confusing, but that represents best the constraints and desires that we have:
* We need to be able to register components on-the-fly (so we need a mechanism that will propagate changes);
* We don't want to register ComponentDescriptors separately from ComponentView classes;
* C++ not always gives us abstractions that we want (e.g. pointers to constructors).
After the change, we can remove the whole Buck target that has a bunch of handwritten boilerplate code.
There is a still room for polish and removing some concepts, types or classes but this diff is already huge.
Reviewed By: JoshuaGross
Differential Revision: D14983906
fbshipit-source-id: ce536ebea0c905059c7a4d644dc25233e2809761
Summary:
ComponentDescriptorProvider represents unified way to create a particular descriptor.
Now all ComponentViews (which support RCTComponentViewProtocol) expose a `ComponentDescriptorProvider` which will allow creating and registering ComponentDescriptor instances for all visual components automatically as a part of ComponentView registration process.
Don't panic, everything is still being as explicit as it always was, no magic involved; we just will have only one registration step instead of two parallel.
That also opens a way to register components on the fly.
Reviewed By: JoshuaGross
Differential Revision: D14963488
fbshipit-source-id: 9e9d9166fabaf7b30b35b8647faa6e3a19cd2435
Summary:
Turns out that storing and using ContextContainer in custom subclasses is a huge pain. At the same time seems that a lot of custom components need some DI instrument, so we need this instrument anyway.
Moving stuff from the template to the base class should also help with codesize a bit.
Reviewed By: JoshuaGross
Differential Revision: D14921356
fbshipit-source-id: 4dbb961fe32bd66c73513d7e053bbed229860a31
Summary: That should reduce the size of `ShadowNode`, make an instantiation of shadowNode a bit faster, and make `clone` operation a bit faster because simple dynamic dispatch is faster than std::function invocation. It also should help a bit with code size.
Reviewed By: mdvacca
Differential Revision: D14249200
fbshipit-source-id: c1332b139d27becebf15cd894475507b5fd0eb9f
Summary:
In React Native there are several use cases where React State is not the only input that affects the component tree. E.g., in case of a <Modal> component, the screen size directly affects the layout of components inside modal; in the case of uncontrolled <TextInput> component, the text inside the input affects the layout of the surrounding components. `State` is a special (legit!) workaround for all those similar cases. Native part of React Native maintains a special shared object between all nodes of the same family and use that during cloning and commits.
See coming commits to know how to use that.
In the near future State will fully replace LocalData concept but for simplicity they both exist for now.
Reviewed By: mdvacca
Differential Revision: D14217184
fbshipit-source-id: 6e018c5b68208d662462013bce0f4e2733d2f673
Summary: That's bummer that we have to do it, but it's actually reasonable. Files in `core` and `events` depend on each other creating circular dependencies and other similar hard problem.
Reviewed By: mdvacca
Differential Revision: D14195022
fbshipit-source-id: 96a44ae28631cc9ccd7d7de72a94526f9e0dd12a
Summary: We are moving to more stable APIs removing all mentiones of the effort name from the codebase.
Reviewed By: mdvacca
Differential Revision: D12912894
fbshipit-source-id: 4a0c6b9e7454b8b14e62d419e9e9311dc0c56e7a
Summary: This is the second and the final part of adopting clang-format.
Reviewed By: mdvacca
Differential Revision: D10229624
fbshipit-source-id: d97670b716800ea2488b84bd0aacaf54d8bd2e31
Summary:
As we did in the previous diff, here we implemented `EventEmitter`'s ownership model as a `shared_ptr`. This change fixes problem with leaking `WeakObject`s which happens on hot-reload.
So, in short:
* `EventTargetWrapper` object owns `jsi::WeakObject` that can be converted to actual `jsi::Object` that represent event target in JavaScript realm;
* `EventTargetWrapper` and `jsi::WeakObject` objects must be deallocated as soon as native part does not need them anymore;
* `EventEmitter` objects retain `EventTarget` objects;
* `EventEmitter` can loose event target object in case if assosiated `ShadowNode` got unmounted (not deallocated); in this case `EventEmitter` is loosing possibility to dispatch event even if some mounting-layer code is still retaining it.
Reviewed By: mdvacca
Differential Revision: D9762755
fbshipit-source-id: 96e989767a32914db9f4627fce51b044c71f257a
Summary: This change drops the year from the copyright headers and the LICENSE file.
Reviewed By: yungsters
Differential Revision: D9727774
fbshipit-source-id: df4fc1e4390733fe774b1a160dd41b4a3d83302a
Summary:
@public
Now it accepts `const ShadowNode &` instead of `std::shared_ptr<const ShadowNode>` which is more reasonable (and more performant) becasue the function must not retain ownershipt.
Reviewed By: mdvacca
Differential Revision: D9073921
fbshipit-source-id: c24c475615e0f81b3e004e118dea7565d8e757b4
Summary:
@public
To avoid unnecessary copying of `shared_ptr`s inside ShadowNodeFragment, now we store them as `const &` references.
Reviewed By: mdvacca
Differential Revision: D8988388
fbshipit-source-id: 0b3582e57ce7577b8fa819392bf33f34e1a60b59
Summary:
@public
Now we use same data structure to specify a shape of shadow node as we use in ShadowNode (sub)clases.
Reviewed By: mdvacca
Differential Revision: D8988387
fbshipit-source-id: 475298b2c71ee7ee2b197db009f7b8313b54f5df
Summary:
@public
When we copy-construct ShadowNode, we don't need to retain a source shadow node, so there is no need to pass it as a `shared_ptr`. Passing an argument to constructor as `const &` is also more idiomatic in C++.
Reviewed By: mdvacca
Differential Revision: D8988384
fbshipit-source-id: 1279d9185fa1b4b82fd26e3040bd62fa9495b4d3
Summary:
@public
This diff changes a way how we specify a shape of newly created and/or cloned of ShadowNode. Previously we pass those values as a list of arguments, now those values are coupled into a new data structure called ShadowNodeFragment. All that makes suppose to make code much more easy to read and maintain, this is especially important because we want to add a couple of new entities in this set.
Reviewed By: mdvacca
Differential Revision: D8988389
fbshipit-source-id: 1835f646e1ecc6a1f413feaf1900f3d3ad0ebc05
Summary:
@public
Previously, all ConcreteShadowNode subclasses had to override `getComponentName()` function to specialize a name of the component. And often it was all that those subclasses do. Now, it's a template argument; and many ShadowNode classes can be created as oneliners via *just* specializing ConcreteShadowNode template.
Unfortunately, C++ does not allow to use `std::string`s or string literals as template arguments, but it allows to use pointers. Moreover, those pointers must point to some linked data, hence, those values must be declared in .cpp (not .h) files. For simplicity, we put those constants in Props classes, (but this is not a strong requirement).
Reviewed By: mdvacca
Differential Revision: D8942826
fbshipit-source-id: 4fd517e2485eb8f8c20a51df9b3496941856d8a5
Summary:
@public
This diff consists of many interdependent changes which support one simple idea: YogaLayoutableShadowNode is now using YGNode children to iterate on them (it previously relied on `ShadowNode::getChildren()`). All other changes are just an unavoidable consequence of that. Hence we don't need to filter child nodes every single time when we do layout anymore! The logic around `clone callback` is also drastically simpler now.
The new approach also implies that `LayoutableShadowNode` and `YogaLayoutableShadowNode` don't use `shared_ptr`s to refer to ShadowNode objects because new relationship does not imply ownership. No more `SharedShadowNode` objects in those two classes.
Reviewed By: mdvacca
Differential Revision: D8796159
fbshipit-source-id: 6f52f92d1826f3eb13b2f8a132c3ea77de155d82
Summary:
Removes the concept of instance handle. Instead we pass the event target
to createNode and don't pass it to subsequent clones.
The life time of the event target is managed by native (the event emitter).
It has to be released manually.
Reviewed By: shergin
Differential Revision: D8688330
fbshipit-source-id: e11b61f147ea9ca4dfb453fe07063ed06f24b7ac
Summary:
@public
After reading about move-semantic and rvalue refs I realized that we (I) definitely overuse `auto &&` (aka universal reference) construction. Even if this is harmless, does not look good and idiomatic.
Whenever I used that from a semantical point of view I always meant "I need an alias for this" which is actually "read-only reference" which is `const auto &`.
This is also fit good to our policy where "everything is const (immutable) by default".
Hence I change that to how it should be.
Reviewed By: fkgozali
Differential Revision: D8475637
fbshipit-source-id: 0a691ededa0e798db8ffa053bff0f400913ab7b8
Summary:
Using `EventHandlers` name was a bad idea, and I cannot tolerate it anymore.
The worst part of it is that when you have a collection of `EventHandlers` objects you cannot use plural word to describe it because `EventHandlers` is an already plural word.
And, this object is actually an event emitter, the thing on which we call events.
Reviewed By: fkgozali
Differential Revision: D8247723
fbshipit-source-id: b3303a4b9529bd6d32bb8ca0378287ebefaedda8
Summary:
In order to dispatch event, `EventHandlers` must also know react tag. So we have to store it inside.
We plan to illuminate this requirement (and `tag` from `EventHandlers`) eventually.
Reviewed By: fkgozali
Differential Revision: D8211685
fbshipit-source-id: 2064c0f4a7869cbf4d2c92d0349f4ee3998cb8f5
Summary: This implements `EventHandlers` abstract class (aka "Events Guy") which encapsulates `eventDispatcher` and `instanceHandle` (and ownership of future `eventTarget`), all of this as part of existing {ShadowNode + Props + LayoutMetrics + LocalData + Descriptor + (and now) EventHandlers} infra. (We don't plan to add anything else to this model. Ever.)
Reviewed By: fkgozali
Differential Revision: D8053351
fbshipit-source-id: 1dd9ccbcbe5a2eb284b59ea351dc8beca645e8bf
Summary:
Now ConcreteComponentDescriptor can infer `ComponentName` from `ShadowNodeT` automatically,
so in the most cases we even don't need to create a subclass of that.
Reviewed By: fkgozali
Differential Revision: D8016965
fbshipit-source-id: d910597093c9f4c9f32ca06cb3ef1b12538b9543
Summary: Overriding `adopt` method allows subclasses to configure just created or cloned shadow nodes without overriding `create` and `clone` methods.
Reviewed By: mdvacca
Differential Revision: D7738581
fbshipit-source-id: bfe4e4e2d3d448591a3267b5ea7ca4e0800f5ba0
Summary: To clone a ShadowNode we must use node's ComponentDescriptot, not parent node's one.
Reviewed By: mdvacca
Differential Revision: D7738583
fbshipit-source-id: 83656f9a761530cdaedf65663ae28b3119af75f5
Summary:
The previous approach simply didn't work. :(
As you might notice, in previous implementation of ViewShadowNode::cloneAndReplaceChild we used `ViewShadowNode` class for cloning `childNode`, and this is incorrect becasue `childNode` might be instance of any class.
Reviewed By: fkgozali
Differential Revision: D7595016
fbshipit-source-id: 2215414926f2f7a2e2fd05ca2d065f10d6d32b74
Summary:
The new interface of ComponentDescriptor makes ShadowNode creation/cloning process a bit more explicit:
Now customers (UIManager) must prepare Props object explicitly before creation or cloning.
Besides general clarity, we need this to prepare for a new virtual `ShadowNode::clone()` method which will serve "virtual constructor" role,
redirecting execution to concrete ComponentDescriptor instance.
Actually, the whole purpose of concrete ComponentDescriptor instance is serve "virtual constructor" role (and all this code should be "templated").
Reviewed By: mdvacca
Differential Revision: D7591714
fbshipit-source-id: 8793b3ef70ed7ae113efb36ad1eee20573360dc8
