Summary:
@public
We don't need this anymore.
The same functionality is now implemented as `ShadowView::operator==` in much more reasonable way.
Reviewed By: sahrens
Differential Revision: D9649821
fbshipit-source-id: 8cd5f3cb4f583fd10d2d1e060aba914541341b5b
Summary:
@public
This is quite a big diff but the actual meaningful change is simple: now we use ShadowView class instead of ShadowNode in mutation instructions.
Note:
* In some places (especially during diffing) we have to operate with ShadowNodeViewPair objects (which represents a pair of ShadowNode and ShadowView). The reason for that is that we cannot construct child ShadowViews from parent ShadowViews because they don't have any information about children.
* `ShadowTree::emitLayoutEvents` is now much simpler because ShadowView better represents the specifics of this kind of object.
* The code in RCTMountingManager also became simpler.
This change will allow us to implement more cool tricks soon.
Reviewed By: mdvacca
Differential Revision: D9403564
fbshipit-source-id: dbc7c61af250144d6c7335a01dc30df0005559a2
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
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
ShadowNode class is designed to share `props` and `children` objects between instances. Given that all *Props classes are immutable, it's very easy to share them and we do this from the day one. The `children_` collection is more tricky though because ShadowNode class has a couple of mutation methods. Previously, we dealt with it very simply by copying the whole vector in constructors, and that was far from optimal. Now we store a special flag that indicates that the children list is shared among nodes, and we clone this before the first mutation.
Sharing a `shared_ptr` should be much more efficient (cost of atomic refcount increment) than instantiating whole new collection (an allocation).
Reviewed By: mdvacca
Differential Revision: D8988386
fbshipit-source-id: cb2f6b2fccac70a35e070a1aa108d135f77cd041
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
We need that because gonna add much more event-related stuff, so it deserves separate buck target.
Reviewed By: mdvacca
Differential Revision: D8831547
fbshipit-source-id: 616581b39b425a49302d5f7f86267e62b0d58389
Summary:
@public
In most cases callsite knows probable index of replacing child node, hence it makes sense to provide this info to `replaceChild` to illuminate O(n) search in most cases.
Reviewed By: mdvacca
Differential Revision: D8814809
fbshipit-source-id: 0edf82878a72260365e2757beb3886ad07c7464d
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:
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: 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: We don't use them at all; moreover they complicate adding/changing signatures of those methods (because arguments with defaults must be grouped at the end and some arguments cannot have defaults).
Reviewed By: fkgozali
Differential Revision: D7981456
fbshipit-source-id: d7dd098e83630d1ab3342d2ca52ade9c4e27b2c3
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:
LocalData might be used to communicate some infomation between `ShadowNode`s
and native component views.
We will use it soon to store (and transmit to mounting layer) prepared for rendering attributed text in Text component.
Reviewed By: mdvacca
Differential Revision: D7738582
fbshipit-source-id: 1ead23ffd105cce0b3d9aeb9fc1d0df47673be50
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: Should be more performant theoretically.
Reviewed By: mdvacca
Differential Revision: D7591713
fbshipit-source-id: 74141053f2b91cb621cc0d573f89f3454512c585
Summary:
We have to call shallowSourceNode() in all cases of cloning which were not caused by UIManager instructions,
otherwise the diffing alogorith might produce incorrect mutation instructions.
Reviewed By: mdvacca
Differential Revision: D7503383
fbshipit-source-id: b33e5c39b7ba8cbd0f925fd29b3af379441a40a4
Summary:
The method replaces the current source node with its source node.
It's useful when we have to clone some node but don't want to change a source node pointer.
Reviewed By: fkgozali
Differential Revision: D7503384
fbshipit-source-id: 81ec64079c7e99cb9abdda2af10d85281a94e1b1
Summary: Test for equality will be used in ShadowNode Tree Diffing algorithm.
Reviewed By: fkgozali
Differential Revision: D7467802
fbshipit-source-id: 5383add9fc7d7e4a772ca16e70a54f7e0c36823a
Summary:
We use shource nodes only in the diffing alogorithm. It implies that we have strong pointers to those nodes in trees we compare against.
Using weak_ptr's allows to avoid memory leaks.
Reviewed By: mdvacca
Differential Revision: D7376348
fbshipit-source-id: 34e5f58f18a00475f6bcdfbea3996b41c84dff62
Summary: We will need this later in the diffing alogrithm.
Reviewed By: fkgozali
Differential Revision: D7330337
fbshipit-source-id: 3da44a62e4d5f30deed28b18a5779544153244f3
Summary: Foundation clases for Fabric designed to be "const-first".
Reviewed By: fkgozali
Differential Revision: D7230672
fbshipit-source-id: 433acd35a7958d5d577358b0a306923f970e573f
