Summary:
Previously, we stored a pointer to ShadowNode inside NSAttributedString's attributes to make possible retrieving an EventEmitter associated with some text fragment.
That worked fine besides only one caveat: the internal implementation of NSAttributedString is quite strange and that causes a memory leak. Because of some reason, NSAttributedString does not release stored attributes after own destruction (maybe OS uses some kind of caching).
So, now, instead of storing a strong pointer to ShadowNode inside NSAttributedString, we store a weak pointer to EventEmitter. Storing a weak pointer is okay because a desired lifetime of EventEmitter is guaranteed by LocalData stored inside a View. Storing a weak EventEmitter instead of weak ShadowNode will also help us with migration to ShadowView (we cannot store ShadowView weakly because it's a stack allocated object).
Reviewed By: sahrens
Differential Revision: D13196886
fbshipit-source-id: f8714e4b3709765629d6456edf0c635bf5f7c53b
Summary: Over-retaining a LocalData object inside the View can cause a crash during tearing down JS VM because LocalData can indirectly retain EventEmitter objects which were not properly "disabled".
Reviewed By: sahrens
Differential Revision: D13196887
fbshipit-source-id: 001d9fadf775c89f750c84fe8da9b84d4636631c
Summary: RCTViewComponentView retains an EventEmitter, so we have to clear this up after we recyled the view.
Reviewed By: sahrens
Differential Revision: D13196884
fbshipit-source-id: e9f2e2400be864c5c6177227255012101ed8c4d1
Summary: View recycling can be pretty aggressive and memory intensive, so we can properly react on system memory-pressure notification.
Reviewed By: mdvacca
Differential Revision: D13176278
fbshipit-source-id: 38ea1b27da988aeaaa5db6ac0b94389a0bd2799e
Summary:
The whole mounting iOS infra now uses `ComponentHandle` instead of `std::string` as a reference to particular `ComponentView` implementation. All changes are pretty straightforward, we use a different thing/type to refer to the particular class; no changes in the logic besides a new `RCTComponentViewFactory` that serves the same role of classes registry as Objective-C runtime served previously.
That has several benefits:
* It should be slightly faster, mostly because we don't need to convert `char *` strings to `std::string` and then to `NSString *`.
* We don't need string-based component-name maps anymore (at least on this layer). We can call classes as we want and it will work because of classes are now explicit about which ShadowNodes they are compatible with.
* Most importantly, it's explicit now! That means that no runtime magic is involved anymore and we can rely on static linting tool now and not be afraid of improper code stripping/overoptimization.
Reviewed By: mdvacca
Differential Revision: D13130760
fbshipit-source-id: aadf70525a1335b96992443abae4da359efdc829
Summary: The new method in the protocol enforces view component classes to expose a component handle of the component that the view component represents. That will allow us to wire up those classes with shadow views in runtime explicitly and in a much more performant way than it is now.
Reviewed By: mdvacca
Differential Revision: D13114663
fbshipit-source-id: 853187d978aab200f85719d9c1d9fea2e3ad4e55
Summary: Future::then taking a value-taking function is deprecated and being deleted. This cleans up a few more callsites.
Reviewed By: yfeldblum, shergin
Differential Revision: D13163277
fbshipit-source-id: 98d1f78c5b34ca34603cc24d79157a4718573576
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: The code fragment `super.accessibilityLabel` always meant "use stored value which came from Props". But after we override the implementation of this getter in the base class, this starts working differently (wrong). This change basically reverts that to original intent.
Reviewed By: sahrens
Differential Revision: D10350597
fbshipit-source-id: 913951eb08c4ede76fc0e9be76b48d86599bcc62
Summary: Empty string in AccessibilityProps basically means same as `nil` in iOS Accessibility API.
Reviewed By: sahrens
Differential Revision: D10350596
fbshipit-source-id: fad9cdc914388c72e1b8261b27f14cbfa9a037db
Summary: We didn't have support for them... and now we have it.
Reviewed By: sahrens
Differential Revision: D10280430
fbshipit-source-id: 7275d4617ed3994366f673a17c24b823293d7092
Summary:
This diff fixes previously broken custom border rendering.
We need a dedicated CALayer for border bitmap in order to fully support all UIView capabilities in case if some subclass uses that. Otherwise, any call of `drawRect:` method can override any content which is stored inside `contents` property of CALayer.
Q&A:
How does it work in current RN? - It does not. All `drawRect:` methods in RCTView subclasses are dysfunctional.
How does text view work in current RN? - RCTTextView does not inherit RCTView, so it does not have this problem.
How does text view support custom borders in current RN then? - It does not.
Reviewed By: PeteTheHeat
Differential Revision: D10228805
fbshipit-source-id: 22bc31f41ab1914a97f3a5981cd1b24ebca725cd
Summary:
Don't ask.
Really, all those descriptions from official docs like below are useless:
* `__bridge_transfer` Moves a Core Foundation pointer to Objective-C with transfer of the ownership to ARC.
* `__bridge` Transfers a pointer between Objective-C and Core Foundation with no transfer of ownership
All that is totally confusing and useless. At the end of the day, we only have to think about which additional `CFRetain` and `CFRelease` ARC will add or will not add for our pointers.
So, following official docs recommendation, we would like to add `__bridge_transfer` because of course, we do want to ARC managing the variable after we introduced it to ARC here. But we also want to have shared ownership of this. That's the key. If we use `__bridge_transfer` ARC will assume that this variable already retained once (because it exists) and will call CFRelease at the end of the scope. Right before that when we pass this variable down to call stack ARC will retain and then manage the variable according to the rest of the code. But still, from this point, we will have zero-balanced reference counter; the owning by `shared_ptr` bump is already compensated with `CFRelease` at the end of the scope. As soon as the rest of the code release the object, it will be incorrectly deallocated.
So, instead of using `__bridge_transfer` we have to use `__bridge`. That will indicate that *in this block* ARC does not manage the reference counter of the variable (which is kinda true because having `shared_ptr` inside the block already retains that) and will not add `CFRelease` at the end of the block.
Reviewed By: mdvacca
Differential Revision: D10054241
fbshipit-source-id: 6e82c5270fe5d53f1ed68e167b94f70dc4367a9f
Summary: Apparently, after updating CALayer props we have to request redrowing on top of it manually.
Reviewed By: mdvacca
Differential Revision: D10053340
fbshipit-source-id: f87311399bab809c9e13a3076f526bbe3f7f3fb4
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:
* Now all `RCTViewComponentView` subclasses are required to set `_props` instance variable in the constructor with a default value;
* `RCTViewComponentView`'s `_props` instance variable now has `ShadredViewProps` type (that enforced by `static_assert` in `ConcreteViewShadowNode` template);
* New we use `static_pointer_cast` instead of `dynamic_pointer_cast` for casting props.
Reviewed By: mdvacca
Differential Revision: D9734199
fbshipit-source-id: b0a0939c936f8b5b540fa5fa1e4a2f1037346fc5
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. Even though `RCTViewComponentView` conforms to `RCTTouchableComponentViewProtocol`, it never implemented this protocol. This diff makes the correction.
2. Make the necessary changes to `RCTSurfaceTouchHandler` required by the changes in `RCTTouchableComponentViewProtocol`. This means modifying the `ActiveTouch` struct to hold `SharedTouchEventEmitter`s. It also means passing in the touch point to the `componentView`'s `touchEventEmitterAtPoint` method.
Reviewed By: shergin
Differential Revision: D9696909
fbshipit-source-id: 3d4a833f7dbae6d0238a0807eb2220250ccbae3d
Summary:
@public
Besides `pointerEvents` there are other two props that affect hit-testing mechanism: `zIndex` and `clipToBounds`.
The default UIKit implementation does not take this into an account (it always assume that `clipToBounds` is true and `zIndex` is same). `betterHitTest` does it right.
Reviewed By: sahrens
Differential Revision: D9688876
fbshipit-source-id: dadfd5e5541ddd1a744fbd8c6b10949c0e266069
Summary:
@public
In RN we have special `pointerEvents` prop that controls whether the View can be the target of touch events.
This is a pretty straight-forward implementation of that.
Reviewed By: sahrens
Differential Revision: D9688877
fbshipit-source-id: 1524647b0a33e4dd14563f531d636469bf3bdef7
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
Now all configurations or border styles are supported by RCTViewComponentView (and all subclasses).
Reviewed By: sahrens
Differential Revision: D9631868
fbshipit-source-id: 3a5b141ac5ffa9c28f4ebb0718f2fc935b8f1a75
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
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 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
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:
@public
This approach is basically copying exising implementation that we have in RCTTextView (D5806097).
Changes in `AttributedString` is quite trivial.
Reviewed By: mdvacca
Differential Revision: D8740000
fbshipit-source-id: 276afdf93d777f7ccb99ca8ee5a18a880de2acbf
Summary:
@public
We have this feature in the current version of RN, so it would be nice to support that in Fabric as well. This should save us tens of ms of views creation during mounting.
And that's quite easy to do!
Reviewed By: fkgozali
Differential Revision: D8701992
fbshipit-source-id: 4e3049df009ffd65bb43043de388e81795e5e559
Summary:
@public
When some `RCTImageComponentView` is going to be recycled, it makes sense to free an associated bitmap because it will not be reused anyways.
Reviewed By: mdvacca
Differential Revision: D8601751
fbshipit-source-id: 1318622b66460b8e5588a4420c91c516fe2b1106
Summary:
@public
We have found that because of some bugs Mounting Manager can request creation of views with same tag several times (which should not happen).
Now, we can fail earlier in such cases.
Reviewed By: fkgozali
Differential Revision: D8585164
fbshipit-source-id: 63c6391de5adfe711552918a20a18396f54ec201
Summary:
@public
We need this to enable measuring, responder-chain management and another features powered by UIManager commands.
As soon we have Fabric specifc command-delivery pipeline this must be reverted.
Reviewed By: fkgozali
Differential Revision: D8552360
fbshipit-source-id: d56e12d38c32d8ad98cb230671bac1f35e87e647
Summary:
@public
For now we only support trivial uniformed (all sides are equal) border rendering (which can be direclty mapped to CALayer features).
Support of the more complex and fancy borders is comming soon.
Reviewed By: mdvacca
Differential Revision: D8528923
fbshipit-source-id: 0883cdc2b855fc63d399e1a93010f259f0628f48
Summary:
@public
Another small but important piece of Accessibility Support.
Reviewed By: mdvacca
Differential Revision: D8528921
fbshipit-source-id: d4ba87bab702d76a90e9ddb751999193243cdc74
Summary:
@public
Trivial. It's also nice this we have a default encoding now.
Reviewed By: fkgozali
Differential Revision: D8528919
fbshipit-source-id: 0853eca828f22ead1a337fea3d7a2fc9a48e84c8
Summary:
@public
This is iOS-specific implementation of <Image> view.
Not all props and features are supported yet.
Known issues:
- Animated GIFs;
- CA transitions during image appearance.
Reviewed By: mdvacca
Differential Revision: D8526570
fbshipit-source-id: a4b1dca583b139b8a09431565a79f051fae67a36
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: After moving all matrix math to C++, the actual client native code is quite trivial.
Reviewed By: fkgozali
Differential Revision: D8344059
fbshipit-source-id: 6910c6af5de64d5f901e82075d30edbde177af40
Summary:
Trivial.
`nativeId` is meant to be used by subclasses of external inspector-like tools, so it does not have any real functionality.
Reviewed By: fkgozali
Differential Revision: D8344064
fbshipit-source-id: d86ef378cda1f7f0e9a7b4ffc09f51004ae530d2
Summary:
This is pretty straightforward implementation uses native `UISwitch`.
Suddenly we need Switch to test a bunch of other things.
Reviewed By: fkgozali
Differential Revision: D8344055
fbshipit-source-id: cfc51b8bc11198eb9d4d5e4745b96fb3a7f14de1
