Summary:
I was watching a classic magnificent talk about modern C++ by Herb Sutter and I was totally sold on double down on using `auto` in our codebase. Surprisingly, 95% of the code base already follows Herb's guidence; I just changed the last 5% to make it consistent.
All those changes must work *exactly* like it was before.
The talk: https://youtu.be/xnqTKD8uD64?t=28m25s
Reviewed By: mdvacca
Differential Revision: D9753301
fbshipit-source-id: 9629aa485a5d6e51806cc96306c297284d4f90b8
Summary:
When text nodes are nested, as below, `onPress` handlers need to be correctly invoked:
```
render() {
return (
<Text onPress={() => console.warn('hi')}>
hi
<Text onPress={() => console.warn('ramanpreet')}>ramanpreet</Text>
</Text>
);
}
```
In the above example, clicking on "hi" should warn "hi", and clicking on "ramanpreet" should warn "ramanpreet". This diff implements that behaviour.
Reviewed By: shergin
Differential Revision: D9696905
fbshipit-source-id: 2daf24e76c3b3c37aa36cd1540e54876a367faf7
Summary:
This diff includes two changes:
1. `TextShadowNode` represents virtual texts. For the time being, virtual text nodes only need touch capabilities so that they can handle `onPress` events for their children. Therefore, we should set the `TextShadowNode`'s `EventEmitterT` to `TouchEventEmitter`.
2. Since `ParagraphShadowNode` extends an instance of the `ConcreteViewShadowNode` template, it automatically uses the `ViewEventEmitter` if no event emitter is specified. I think it's better to make the event emitter explicitly specified. So, I've included that change in this diff.
Reviewed By: shergin
Differential Revision: D9696906
fbshipit-source-id: ac053ffdde4c2fbc6351f177c07a2ada4445cbb8
Summary: In the future, we may want some components (like Virtual Text) to handle only touch events. Therefore, I've extracted `TouchEventEmitter` from `ViewEventEmitter`.
Reviewed By: shergin
Differential Revision: D9696903
fbshipit-source-id: f6acc90d8ff53b5e6badaa472a5e099fb7cf03ff
Summary:
When a user clicks on some text, `RCTSurfaceTouchHandler` will call into a method on `RCTParagraphComponentView`. That method (i.e: `touchEventEmitter`) would be responsible for identifying the closest ancestral `<Text/>` component to which we should dispatch the `onPress` event, given the point where the user clicked. To answer this query, we'll use a data structure called `UIAttributedString`.
This data structure represents a string, and a corresponding mapping from sequences of its characters to some arbitrary data. In this attributed string, we'll map sequences of characters to their closest ancestral `ParagraphShadowNode` or `TextShadowNode`. That way, when we get a click event on `RCTParagraphComponentView`, we can just look at the character that was clicked, and use that information to do a lookup in the attributed string to find the shadow node who's EventEmitter is responsible for processing the click event.
Reviewed By: shergin
Differential Revision: D9696904
fbshipit-source-id: a199649981ad271afa85414ce4c3f056851348be
Summary: Previously, `BaseTextShadowNode::getAttributedString` used to recurse on a list of `SharedShadowNode`s (i.e: the children). In the `RawText` base case of this recursion, we'll need to record the parent of the current `RawText` (so that we can dispatch the `onPress` event to it). Therefore, we need to start recursing using the `SharedShadowNode` itself, and not its children.
Reviewed By: shergin
Differential Revision: D9696908
fbshipit-source-id: dbf3f9c21a7ae4de421d0355c4e5900b3947dc2a
Summary:
@public
Trivial.
We should not use the name of the effort in the API interfaces where it's not neccecery.
Reviewed By: sahrens
Differential Revision: D9652991
fbshipit-source-id: 52b99e39f92926f9fc99626690eb4385195558f6
Summary:
@public
Now we simply skip `uiManagerDidFinishTransaction` calls if they refer to unregister surfaces. In the future, after we have proper asynchronous scheduling and sync unmounting (and if we chose to have sync unmounting), we can avoid this situation (and assert in this cases).
Reviewed By: sahrens
Differential Revision: D9652731
fbshipit-source-id: e376ea1ae4f93960a903e6397d843bd7c4b72400
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
Apperently, we don't need to store and parse this because we are already doing this for `yogaStyle` field.
Reviewed By: sahrens
Differential Revision: D9649549
fbshipit-source-id: a84a5518674f4c2d574a060cdbebb9562121f5f4
Summary:
@public
Empty (nullptr) color should be treated as `Clear` color ({0, 0, 0, 0} - black, fully tranparent), so `colorComponentsFromColor()` was changed to accomodate this (previously it crashed).
Reviewed By: rsnara
Differential Revision: D9631865
fbshipit-source-id: e211f34a89e9f5f86d9fca2789c7163db4feaab1
Summary:
@public
Apparently, it's how it should be.
Reviewed By: rsnara
Differential Revision: D9631870
fbshipit-source-id: 46f58270104d699fbc9abe21062c12f791460536
Summary:
@public
Previously, ViewProps class coundn't represent whole spectre of possible values of border metrics (e.g. the border color was unified).
Now it's complete and direction-specific.
Reviewed By: sahrens
Differential Revision: D9628361
fbshipit-source-id: 6d3b3d4d7e3008e2168cbca732ff99fe5ea595e8
Summary:
@public
EdgeInsets and CornerInsets are now just qualifications of those generics:
using EdgeInsets = RectangleEdges<Float>;
using CornerInsets = RectangleCorners<Float>;
We will need more concrete types like that in the future diffs.
Reviewed By: mdvacca
Differential Revision: D9614428
fbshipit-source-id: e4d48a11d9083958c3ada68e6368afb150c64f6b
Summary:
@public
Previously, we amitted `default` argument in `convertRawProp` functions assuming that all default values are equal to results of their default constructors (which was something between "wrong" and "lucky coincidence"). Now we use a `YGStyle` default value as a source of all semantic default values of all layout props/styles.
Reviewed By: mdvacca
Differential Revision: D9626469
fbshipit-source-id: 5cfc9c518772556f59da46f608181145cc744928
Summary:
@public
Now it's clear that we don't need to store/handle ShadowTree objects as `shared_ptr`s; Scheduler should own it. This diff changes that to using unique_ptr and removes a base class of ShadowTree.
Reviewed By: mdvacca
Differential Revision: D9403567
fbshipit-source-id: 6e411714b632a04233fd5b25c8ab7cdd260105fd
Summary:
@public
Voalá, this small change actually implements view flattening. Obviously, it does not work right now because there are no `ShadowNode` classes which implement `isLayoutOnly`.
Surprisingly, correct implementing of `isLayoutOnly` is quite tricky, we will work on this in coming diffs.
Reviewed By: mdvacca
Differential Revision: D9403565
fbshipit-source-id: 1f16f912cb5c6841405a1fc3cf36aec28698c11f
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
We need some another object like ShadowNode (but not ShadowNode) to represent an instance of the component in the mutation instructions. This is
the main motivation for introducing ShadowView.
Why not use ShadowNode? ShadowNode is designed to represent a node in ShadowTree, not be a part of a mutation instruction.
* ShadowNode exposes some APIs that should not be exposed to the mounting layer;
* ShadowNode is an immutable data structure, so we cannot mutate it in some way which can be meaningful for mounting;
* We should not add to ShadowNode any functionality which is needed only for mounting;
* ShadowNode is a bit more heavy object to share that it needs to be; it's exposed (embedded into Mutation) as a `shared_ptr` which is not optimal from the performance perspective;
* Retaining ShadowNode from mounting code can unnecessarily extend its lifetime which can negatively affect memory usage.
Reviewed By: mdvacca
Differential Revision: D9403562
fbshipit-source-id: 72ad81ed918157a62cd3d1a03261f14447649d0b
Summary:
@public
Trivial. Those operations are very useful in layout algorithms.
Reviewed By: mdvacca
Differential Revision: D9403566
fbshipit-source-id: e76967aaaac3a36bf6d3e7a468b5ae7769a4dcac
Summary: Unused loads hurt readability and take time to process.
Reviewed By: hramos
Differential Revision: D9494120
fbshipit-source-id: 455b56efadab1cb976344cffcb427772bfda2f71
Summary: This diff implements the HorizontalScrollView component for Android Fabric C++, as part of this diff I also re-named the components AndroidHorizontalScrollContentView for RCTAndroidHorizontalScrollContentView and AndroidHorizontalScrollView for RCTAndroidHorizontalScrollView. This might sound against our plan of removing the RCT preffix, but it is to make it simpler to map components between current implementation of RN and Fabric (otherwise we don't know when to add the RCT preffix in Android side to find the right View Manager), later we can just remove the preffix from C++, Android, iOS and JS.
Reviewed By: shergin, achen1
Differential Revision: D9122729
fbshipit-source-id: e9299552857c6dd0c18abfa5fa49a3d50e221729
Summary:
@public
Now, one of the main purposes of `EventEmitter`s is to create RawEvent instances for all specific event invocations.
Reviewed By: mdvacca
Differential Revision: D8886226
fbshipit-source-id: 82a489174efcda097887e70650a2038dc986d149
Summary:
@public
Now, it's not just an abstract class, it's a regular class which unifies event delivery priorities using specific event beats and event pipe.
Reviewed By: mdvacca
Differential Revision: D8886232
fbshipit-source-id: c4360511e5fd477ca7407fc3ebbd99ca578e79cc
Summary:
@public
The existing code does not use that at all but we need that for testing things and we will need this in the future.
Reviewed By: mdvacca
Differential Revision: D8886236
fbshipit-source-id: 5ca33e4f4d4ca13a6be0f55cc04b59d5f9b27fa9
Summary:
@public
We need that to ensure that we will not deliver events to nodes with invalid state.
Reviewed By: mdvacca
Differential Revision: D8886234
fbshipit-source-id: 1d6ca129c97a5dca0411e85909aea48185f46c54
Summary:
@public
Instead of having two methods it's easier to have just one which can be abstracted as `EventPipe`.
Reviewed By: mdvacca
Differential Revision: D8886231
fbshipit-source-id: af9fd92dc4afa1219a11acce0aa021a85c94d232
Summary:
@public
EventQueue is a queue of events that synchronizing event dispatching with given Event Beat.
The only difference between UnbatchedEventQueue and BatchedEventQueue is that UnbatchedEventQueue `induce` an Event Beat right after enqueing an event.
Reviewed By: mdvacca
Differential Revision: D8886225
fbshipit-source-id: fedba6fdff2ecb6f3c615cea09b5fdaa58890479
Summary:
@public
EventBeat is an abstraction around proper event scheduling combining proper timing and proper threading. Event Queues use Event Beat to ensure that events are delivered on proper threads and in proper timing (probably batched). Consumers can `request` the next beat and `induce` immediatly beat.
MainRunLoopEventBeat implements particular Event Beat synchronized with the main event loop and calling a callback on the main thread.
Reviewed By: mdvacca
Differential Revision: D8886229
fbshipit-source-id: 1a42fcbf4cd61c6cb4c502890566c98b00226f31
Summary: This diff implements the update of props in Fabric C++. The props values are passed to java in a ReadableMap and they are integrated into the current implementation of ViewManagers. In the fututre we will replace the ReadableMap for typed objects.
Reviewed By: shergin
Differential Revision: D9093560
fbshipit-source-id: da58326cfadb0665dac3349a8cf24cde2d401aaa
Summary: this diff exposes the rawProps folly::dynamic map received by JS as part of the Props class
Reviewed By: shergin
Differential Revision: D9093559
fbshipit-source-id: 5f5bc4924aebb6bcc24c7a82ce1a59593d44450e
Summary: This diff fixes the color conversions for Android
Reviewed By: shergin
Differential Revision: D9093561
fbshipit-source-id: a17e61c58be511bd463dc0b21b632dc24066b8b6
Summary: This diff improves the error message that is displayed when a component descriptor is not implemented in C++
Reviewed By: shergin
Differential Revision: D9093562
fbshipit-source-id: 930b381bc66c20af6fa160b09e7484bad4666e28
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
We backported that into Yoga recently, so we don't need it here anymore.
Reviewed By: mdvacca
Differential Revision: D8988439
fbshipit-source-id: 01a538ff291e25d92eeb01b1fdee3a6868b2448b
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
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
Just a type alias to make the code prettier, nothing more.
Reviewed By: mdvacca
Differential Revision: D8988383
fbshipit-source-id: 3f21de0ec0cb9a2270eccfc4a67a3d1108535e42
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
Valentin Shergin
Ramanpreet Nara
Joe Peplowski
Taras Tsugrii
Jonathan Kim
David Vacca