Summary:
public
In 9baff8f437 (diff-8d9841e5b53fd6c9cf3a7f431827e319R331), I incorrectly assumed that iOS was wrapping promises in an extra Array. What was really happening is that all the callers were doing this. I removed the wrapping in the callers and the special case handling MessageQueue.
Now one can pass whatever object one wants to resolve and it will show properly in the resolve call on the js side. This fixes issue https://github.com/facebook/react-native/issues/5851
Reviewed By: nicklockwood
Differential Revision: D2921565
fb-gh-sync-id: 9f81e2a87f6a48e9197413b843e452db345a7ff9
shipit-source-id: 9f81e2a87f6a48e9197413b843e452db345a7ff9
Summary:
…while an event is dispatched
While it is guarded, a copy of the Set is created before listeners are added or removed. The event dispatch loop continues with the old Set of listeners.
This PR modifies `BackAndroid` to match the proposal at the end of #5781.
Closes https://github.com/facebook/react-native/pull/5783
Reviewed By: svcscm
Differential Revision: D2911282
Pulled By: foghina
fb-gh-sync-id: 34964ec3414af85eb9574bbcef081238fc67ffaf
Summary:
public
Introduce a header bar similar to the one shown when loading the bundle to indicate that the packager server is processing an HMR update. Hook into HMR events to show this bar when appropriate.
Reviewed By: javache
Differential Revision: D2873521
fb-gh-sync-id: a77cbb2368b75b045aa8c6ababce2f731baf514b
Summary:
To allow smoother API changes for users we often deprecate props and keep them around for a while before removing them. Right now it is all done manually, this adds a consistent way to show a warning when using a deprecated prop.
This also adds a deprecation warning of the website generated from the deprecatedPropType.
<img width="643" alt="screen shot 2016-01-26 at 7 43 08 pm" src="https://cloud.githubusercontent.com/assets/2677334/12600172/7af28fb0-c465-11e5-85e5-3786852bf522.png">
It also changes places where we added the warnings manually to use deprecatedPropType instead.
Closes https://github.com/facebook/react-native/pull/5566
Reviewed By: svcscm
Differential Revision: D2874629
Pulled By: nicklockwood
fb-gh-sync-id: c3c63bae7bbec26cc146029abd9aa5efbe73f795
Summary:
This method is defined in the implementation but is missing from the mock.
public
Reviewed By: cpojer
Differential Revision: D2875173
fb-gh-sync-id: 6544c34a3d707ff9cecacc0608ab8320b950bfb7
Summary:
public
To make sourcemaps work on Hot Loading work, we'll need to be able to serve them for each module that is dynamically replaced. To do so we introduced a new parameter to the bundler, namely `entryModuleOnly` to decide whether or not to process the full dependency tree or just the module associated to the entry file. Also we need to add `//sourceMappingURL` to the HMR updates so that in case of an error the runtime retrieves the sourcemaps for the file on which an error occurred from the server.
Finally, we need to refactor a bit how we load the HMR updates into JSC. Unfortunately, if the code is eval'ed when an error is thrown, the line and column number are missing. This is a bug/missing feature in JSC. To walkaround the issue we need to eval the code on native. This adds a bit of complexity to HMR as for both platforms we'll have to have a thin module to inject code but I don't see any other alternative. when debugging this is not needed as Chrome supports sourceMappingURLs on eval'ed code
Reviewed By: javache
Differential Revision: D2841788
fb-gh-sync-id: ad9370d26894527a151cea722463e694c670227e
Summary:
public
The reverted change doesn’t play nice with inline requires, let’s revert it for now.
I will bring it back after fixing it or adapting inline requires
Reviewed By: martinbigio
Differential Revision: D2854771
fb-gh-sync-id: 32fdbf8ad51240a9075b26502decb6328eed4b29
Summary:
Ok, so this started as fixing #5273 but ended up getting a little more complicated. 😄
Currently, AlertIOS has the following API:
* `alert(title, message, buttons, type)`
* `prompt(title, defaultValue, buttons, callback)`
I've changed the API to look like the following:
* `alert(title, message, callbackOrButtons)`
* `prompt(title, message, callbackOrButtons, type, defaultValue)`
I know that breaking changes are a big deal, but I find the current alert API to be fairly inconsistent and unnecessarily confusing. I'll try to justify my changes one by one:
1. Currently `type` is an optional parameter of `alert`. However, the only reason to change the alert type from the default is in order to create one of the input dialogs (text, password or username/password). So we're in a weird state where if you want a normal text input, you use `prompt`, but if you want a password input you use `alert` with the 'secure-text' type. I've moved `type` to `prompt` so all text input is now done with `pro
Closes https://github.com/facebook/react-native/pull/5286
Reviewed By: svcscm
Differential Revision: D2850400
Pulled By: androidtrunkagent
fb-gh-sync-id: 2986cfa2266225df7e4dcd703fce1e322c12b816
Summary:
public
Since the combination of node and haste modules (and modules that can be required as both node and haste module) can lead to situations where it’s impossible to decide an unambiguous module identifier, this diff switches all module ids to integers. Each integer maps to an absolute path to a JS file on disk.
We also had a problem, where haste modules outside and inside node_modules could end up with the same module identifier.
This problem has not manifested yet, because the last definition of a module wins. It becomes a problem when writing file-based unbundle modules to disk: the same file might be written to concurrently, leading to invalid code.
Using indexed modules will also help indexed file unbundles, as we can encode module IDs as integers rather than scanning string IDs.
Reviewed By: martinbigio
Differential Revision: D2842418
fb-gh-sync-id: 97addd28e964ac5f2b5081dcd3f36124d2864df8
Summary:
public
This is the first module moving to the new model of working with Promises.
We now warn on uses of callback version. At some point we will remove that.
Reviewed By: davidaurelio
Differential Revision: D2849811
fb-gh-sync-id: 8a31924cc2b438efc58f3ad22d5f27c273563472
Summary:
public
Map and Set are a standard JavaScript features, but are only supported in a subset of JSC versions that we target (e.g. iOS 7's JSC doesn't support Set).
The consequence of this is that failing to require('Set') before using it won't error during testing on a modern OS, but will fail on older OS versions. This diff makes the Map and Set polyfills available globally to all RN apps to avoid that problem.
Reviewed By: davidaurelio
Differential Revision: D2833997
fb-gh-sync-id: 713d8b69f6a1bce2472a1b2e6b84f69d75f30289
Summary:
This implements #5073. It adds a static method `PixelRatio.pixel()` which returns the smallest drawable line width, primarily for use in styles.
It also updates the example apps to use the new function.
Closes https://github.com/facebook/react-native/pull/5076
Reviewed By: svcscm
Differential Revision: D2799849
Pulled By: nicklockwood
fb-gh-sync-id: b83a77790601fe882affbf65531114e7c5cf4bdf
Summary:
I'm working on deploying haste2 with jest. This updates all the files that require changes for this to work and they are backwards compatible with the current version of jest.
* package.json was just outdated. I think haste1's liberal handling with collisions made this a "non-issue"
* env.js didn't properly set up ErrorUtils, also unsure why that isn't a problem in jest right now already?
* some things were mocking things they shouldn't
* Because of the regex that matches against providesModule and System.import, it isn't possible to list module names more than once. We have multiple tests reusing the same providesModule ids and using System.import with modules that only exist virtually within that test. Splitting up the strings makes the regexes work (we do the same kind of splitting on www sometimes if we need to) and using different providesModule names in different test files fixes the problem. I think the BundlesLayoutIntegration-test is going to be deleted, so this doesn't even matter.
public
Reviewed By: voideanvalue
Differential Revision: D2809681
fb-gh-sync-id: 8fe6ed8b5a1be28ba141e9001de143e502693281
Summary:
public
We should further improve this on the future by showing the actual stacktrace instead of the `HMRClient` one. Also, we need to integrate this with the dev plugin that opens in the default editor the file/line the user clicks on.
Reviewed By: vjeux
Differential Revision: D2798889
fb-gh-sync-id: 2392966908c493e86e11b0d024e7b68156c9066c
Summary:
public
If Hot Loading is enabled bu the packager server is not running, as the user updates files he'll see red boxes caused by the HMR runtime. The error those red boxes show is pretty weird for the end user. Lets improve the feedback we give!.
Reviewed By: vjeux
Differential Revision: D2795534
fb-gh-sync-id: dcc39e6682e0603bf10d0f5e623433262b745660
Summary:
public
Implement all the necessary glue code for several diffs submitted before to get Hot Loading work end to end:
- Simplify `HMRClient`: we don't need to make it stateful allowing to enable and disable it because both when we enable and disable the interface we need to reload the bundle.
- On the native side we introduced a singleton to process the bundle URL. This new class might alter the url to include the `hot` attribute. I'm not 100% sure this is the best way to implement this but we cannot use `CTLSettings` for this as it's are not available on oss and I didn't want to contaminate `RCTBridge` with something specific to hot loading. Also, we could potentially use this processor for other things in the future. Please let me know if you don't like this approach or you have a better idea :).
- Use this processor to alter the default bundle URL and request a `hot` bundle when hot loading is enabled. Also make sure to enable the HMR interface when the client activates it on the dev menu.
- Add packager `hot` option.
- Include gaeron's `react-transform` on Facebook's JS transformer.
The current implementation couples a bit React Native to this feature because `react-transform-hmr` is required on `InitializeJavaScriptAppEngine`. Ideally, the packager should accept an additional list of requires and include them on the bundle among all their dependencies. Note this is not the same as the option `runBeforeMainModule` as that one only adds a require to the provided module but doesn't include all the dependencies that module amy have that the entry point doesn't. I'll address this in a follow up task to enable asap hot loading (9536142)
I had to remove 2 `.babelrc` files from `react-proxy` and `react-deep-force-update`. There's an internal task for fixing the underlaying issue to avoid doing this horrible hack (t9515889).
Reviewed By: vjeux
Differential Revision: D2790806
fb-gh-sync-id: d4b78a2acfa071d6b3accc2e6716ef5611ad4fda
Summary:
public
This diff adds infra to both the Packager and the running app to have a WebSocket based connection between them. This connection is toggled by a new dev menu item, namely `Enable/Disable Hot Loading`.
Reviewed By: vjeux
Differential Revision: D2787621
fb-gh-sync-id: d1dee769348e4830c28782e7b650d025f2b3a786
Summary:
Default behavior should be unchanged.
If we queue up a bunch of expensive tasks during an interaction, the default
`InteractionManager` behavior would execute them all in one synchronous loop at
the end the JS event loop via one `setImmediate` call, blocking the JS thread
the entire time.
The `setDeadline` addition in this diff enables an option to only execute tasks
until the `eventLoopRunningTime` is hit (added to MessageQueue/BatchedBridge),
allowing the queue execution to be paused if an interaction starts in between
tasks, making the app more responsive.
Additionally, if a task ends up generating a bunch of additional tasks
asynchronously, the previous implementation would execute these new tasks after
already scheduled tasks. This is often fine, but I want it to fully resolve
async tasks and all their dependencies before making progress in the rest of the
queue, so I added support for `type PromiseTask = {gen: () => Promise}` to do
just this. It works by building a stack of queues each time a `PromiseTask` is
started, and pops them off the stack once they are resolved and the queues are
processed.
I also pulled all of the actual queue logic out of `InteractionManager` and into
a new `TaskQueue` class to isolate concerns a bit.
public
Reviewed By: josephsavona
Differential Revision: D2754311
fb-gh-sync-id: bfd6d0c54e6410cb261aa1d2c5024dd91a3959e6
Summary:
This pull request adds an example to the Dimensions documentations. Specifically, it gives an example of how to get the height and width from the window.
I'm submitting this documentation because discovering this information cost me some time and my hope is to save other folks time by having this info right in the docs generated from the comments in this file.
Let me know if you need anything else.
Closes https://github.com/facebook/react-native/pull/4211
Reviewed By: svcscm
Differential Revision: D2719953
Pulled By: androidtrunkagent
fb-gh-sync-id: 86d18e3847066211a013a50ce2f2a3e2032f5052
Summary:
public
The `DialogModule` requires `android.support.v4.app.FragmentManager` which means
every app that wants to use Dialogs would need to have its Activity extend the legacy
`android.support.v4.app.FragmentActivity`.
This diff makes the `DialogModule` work with both the Support `FragmentManager`
(for AdsManager & potentially other fb apps) and the `android.app.FragmentManager`
(for new apps with no legacy dependencies).
Also wrap the native module in the same `Alert` API that we have on iOS and provide
a cross-platform example. In my opinion the iOS Alert API is quite nice and easy to use.
We still keep `AlertIOS` around because of its `prompt` function which is iOS-specific
and also for backwards compatibility.
Reviewed By: foghina
Differential Revision: D2647000
fb-gh-sync-id: e2280451890bff58bd9c933ab53cd99055403858
Summary:
public
We were adding all the arguments passed to all the JS functions and callbacks
called over the bridge to marker names, and this args can be huge, meaning a lot
of time spent stringifying arguments and therefore less accurate profile results
Reviewed By: nicklockwood
Differential Revision: D2761809
fb-gh-sync-id: 2d0b5b90cc9e59fe491c108b0360b84ab5fee5b7
Summary:
public
Most of the time - especially during app startup - when we call UIManager.manageChildren(), we are actually just adding the first set of children to a newly created view.
This case is already optimized for in the JS code, by memoizing index arrays at various sizes, but this is not especially efficient since it is still sending an array of indices with each call that could be easily inferred on the native side instead.
I've added a hybrid native/JS optimization that improves the performance for this case. It's not a huge win in terms of time saved, but benchmarks show improvements in the ~1% range for several of the app startup metrics.
Reviewed By: tadeuzagallo
Differential Revision: D2757388
fb-gh-sync-id: 74f0cdbba93af2c04d69b192a8c2cc5cf429fa09
Summary:
public
Rename the `BridgeProfiling` JS module to `Systrace`, since it's actually just
an API to Systrace markers.
This should make it clearer as we add more perf tooling.
Reviewed By: jspahrsummers
Differential Revision: D2734001
fb-gh-sync-id: 642848fa7340c545067f2a7cf5cef8af1c8a69a2
Summary:
MessageQueue no longer falls back to require. To do this we need to register all the modules in our internal unit tests. I did this codemod manually.
This is a bit unfortunate boilerplate but there are very few of these modules outside of unit tests. This boilerplate is only a hassle for these test files.
public
Reviewed By: spicyj
Differential Revision: D2736397
fb-gh-sync-id: 59fa4c4e75c538f3577bc9693b93e1b7c4d4d233
Summary:
The JavaScript ecosystem doesn't have the notion of a built-in native module loader. Even Node is decoupled from its module loader. The module loader system is just JS that runs on top of the global `process` object which has all the built-in goodies.
Additionally there is no such thing as a global require. That is something unique to our providesModule system. In other module systems such as node, every require is contextual. Even registered npm names are localized by version.
The only global namespace that is accessible to the host environment is the global object. Normally module systems attaches itself onto the hooks provided by the host environment on the global object.
Currently, we have two forms of dispatch that reaches directly into the module system. executeJSCall which reaches directly into require. Everything now calls through the BatchedBridge module (except one RCTLog edge case that I will fix). I propose that the executors calls directly onto `BatchedBridge` through an instance on the global so that everything is guaranteed to go through it. It becomes the main communication hub.
I also propose that we drop the dynamic requires inside of MessageQueue/BatchBridge and instead have the modules register themselves with the bridge.
executeJSCall was originally modeled after the XHP equivalent. The XHP equivalent was designed that way because the act of doing the call was the thing that defined a dependency on the module from the page. However, that is not how React Native works.
The JS side is driving the dependencies by virtue of requiring new modules and frameworks and the existence of dependencies is driven by the JS side, so this design doesn't make as much sense.
The main driver for this is to be able to introduce a new module system like Prepack's module system. However, it also unlocks the possibility to do dead module elimination even in our current module system. It is currently not possible because we don't know which module might be called from native.
Since the module system now becomes decoupled we could publish all our providesModule modules as npm/CommonJS modules using a rewrite script. That's what React Core does.
That way people could use any CommonJS bundler such as Webpack, Closure Compiler, Rollup or some new innovation to create a JS bundle.
This diff expands the executeJSCalls to the BatchedBridge's three individual pieces to make them first class instead of being dynamic. This removes one layer of abstraction. Hopefully we can also remove more of the things that register themselves with the BatchedBridge (various EventEmitters) and instead have everything go through the public protocol. ReactMethod/RCT_EXPORT_METHOD.
public
Reviewed By: vjeux
Differential Revision: D2717535
fb-gh-sync-id: 70114f05483124f5ac5c4570422bb91a60a727f6
Summary: Request from issue #3893
* Added support for `secure-text` and `login-password` types to AlertIOS.
* Fixed and extended the cancel button highlighting functionality, which was broken at some point
* Added localization for default `OK` and `Cancel` labels when using UIAlertController
Closes https://github.com/facebook/react-native/pull/4401
Reviewed By: javache
Differential Revision: D2702052
Pulled By: nicklockwood
fb-gh-sync-id: cce312d7fec949f5fd2a7c656e65c657c4832c8f
Summary: I have disected lint warnings fixes to several PRs. This one fixes lint warnings under Libraries/Utility path.
Closes https://github.com/facebook/react-native/pull/4444
Reviewed By: svcscm
Differential Revision: D2705303
Pulled By: spicyj
fb-gh-sync-id: c745ac62cbff30d6bb9478a1d2465fe56b305f0c
Summary: public
RCTUIManager is a public module with several useful methods, however, unlike most such modules, it does not have a JS wrapper that would allow it to be required directly.
Besides making it more cumbersome to use, this also makes it impossible to modify the UIManager API, or smooth over differences between platforms in the JS layer without breaking all of the call sites.
This diff adds a simple JS wrapper file for the UIManager module to make it easier to work with.
Reviewed By: tadeuzagallo
Differential Revision: D2700348
fb-gh-sync-id: dd9030eface100b1baf756da11bae355dc0f266f
Summary: This code generation executes eagerly and these functions are fairly large and takes time to compile.
However, I'm mostly doing this change because it significantly increases the Prepack binary file size.
In theory, there might be a slight impact on the first use of these interpolators but I couldn't really tell.
An alternative would be to create a factory that is called by the components at an appropriate time, or to just refactor the whole thing to use Animated.
I didn't want to dig too deeply for a single component though.
public
Reviewed By: vjeux
Differential Revision: D2687296
fb-gh-sync-id: 6fc8cdf54dfb6f0b50c11db973d67d114bbc7400
Summary: public Add measure() family of methods which allow to easily swizzle methods for profiling
Reviewed By: tadeuzagallo
Differential Revision: D2679904
fb-gh-sync-id: 3724440e1bdaca9e854f4d4124a897a204966dc7
Summary: public
Dynamically profile events from RelayProfiler if available. This will expose time spent in Relay in the systraces.
Reviewed By: tadeuzagallo
Differential Revision: D2674215
fb-gh-sync-id: d5f9d529b86d267a80b0cda2223f6a28a08ac385
Summary: public
We were calling constantsToExport twice for every ViewManager, and including two copies of the values in __fbBatchedBridgeConfig. This diff removes the copy from UIManager and then puts it back on the JS side.
Reviewed By: tadeuzagallo
Differential Revision: D2665625
fb-gh-sync-id: 147ec4bfb404835e3875964476ba233d619c28aa
Summary: public
After reloading the JS side of the profiler wasn't being reenabled.
Reviewed By: javache
Differential Revision: D2602258
fb-gh-sync-id: 5de8afb829e9fa8225600e2b0ff9e00313ac1d4c
Summary: public
Call the native bindings explicitly from BridgeProfiling instead of polyfill'ing `console.profile` with
a function that has a different signature.
Reviewed By: vjeux
Differential Revision: D2602313
fb-gh-sync-id: 9295eff9458f2caa35b7e982c0f7c06dbe65fd09
Summary: public
Use arrays instead of dictionaries for encoding module method information.
This further reduces UIExplorer startup JSON from 16104 bytes to 14119 (12% reduction)
Reviewed By: javache
Differential Revision: D2570057
fb-gh-sync-id: 4a53a9ead4365a136e7caeb650375733e1c24c0e
Summary: public
We're sending a lot of module config data when the app first starts, and much of this is redundant.
UIExplorer current sends 19061 bytes of module config JSON. This diff reduces that to 16104 (15% saving) by stripping modules that have no methods or constants, and removing method types unless method is async.
Reviewed By: tadeuzagallo, javache
Differential Revision: D2570010
fb-gh-sync-id: 8c0abbd1cdee3264b37a4f52e852008caaffb9c5
Summary: @public
Take a step back and de-batch the bridge calls so we can have better profiling data and a better starting point to work on future optimisations. Also gave a 10~15% win on first render.
Reviewed By: @javache
Differential Revision: D2493674
fb-gh-sync-id: 05165fdd00645bdf43e844bb0c4300a2f63e7038
This is an early release and there are several things that are known
not to work if you're porting your iOS app to Android.
See the Known Issues guide on the website.
We will work with the community to reach platform parity with iOS.
Summary:
This will throw an error message with the problematic callback module/method. Previously we would get an invariant in this case when we try to access `callback.apply` later in the method.
Summary:
@public
After refactoring the MessageQueue a guard was missing on around `batchedUpdates`
call.
Test Plan: Introduce an error on `getInitialState` of `AdsManagerTabsModalView.ios.js`
Summary:
### TL/DR:
```
a="function() {return [22]}"
a.substring(a.indexOf("{")+1,a.indexOf("}")-1) // "return [22"
a.substring(a.indexOf("{")+1,a.indexOf("}")) // "return [22]"
```
### In long: why it is broken now and why it worked before:
I've installed latest iOS 9 and started to see really strange issues when code is minified:
```
Invariant Violation: Application app has not been registered."
2015-06-18 16:29:05.898 [error][tid:com.facebook.React.JavaScript] "Error: Unexpected identifier 'transformMatrix'. Expected ']' to end a subscript expression
```
After some investigation it turns out that new Safari returned a bit different string representation for a MatrixOps.unroll. On old safari:
`function(e,t,n,r,o,i,a,s,u,c,l,p,d,h,f,m,g){t=e[0],n=e[1],r=e[2],o=e[3],i=e[4],a=e[5],s=e[6],u=e[7],c=e[8],l=e[9],p=e[10],d=e[11],h=e[12],f=e[13],m=e[14],g=e[15];}`
while using latest iOS:
`function (e,t,n,r,o,i,a,s,u,c,l,p,d,h,f,m,g){t=e[0],n=e[1],r=e[2],o=e[3],i=e[4],a=e[5],s=e[6],u=e[7],c=e[8],l=e[9]
Closes https://github.com/facebook/react-native/pull/1672
Github Author: Artem Yarulin <artem.yarulin@fessguid.com>
Test Plan: Imported from GitHub, without a `Test Plan:` line.
Summary:
@public
Add PerformanceLogger to keep track of JS download, initial script execution and
full TTI.
Test Plan:
The Native side currently calls `addTimespans` when it's finish initializing
with the six values (start and end for the three events), so I just checked it
with a `PerformanceLogger.logTimespans()` at the end of the function.
```
2015-06-18 16:47:19.096 [info][tid:com.facebook.React.JavaScript] "ScriptDownload: 48ms"
2015-06-18 16:47:19.096 [info][tid:com.facebook.React.JavaScript] "ScriptExecution: 106ms"
2015-06-18 16:47:19.096 [info][tid:com.facebook.React.JavaScript] "TTI: 293ms"
```
Summary:
@public
The current implementation of `MessageQueue` is huge, over-complicated and spread
across `MethodQueue`, `MethodQueueMixin`, `BatchedBridge` and `BatchedBridgeFactory`
Refactored in a simpler way, were it's just a `MessageQueue` class and `BatchedBridge`
is only an instance of it.
Test Plan:
I had to make some updates to the tests, but no real update to the native side.
There's also tests covering the `remoteAsync` methods, and more integration tests for UIExplorer.
Verified whats being used by Android, and it should be safe, also tests Android tests have been pretty reliable.
Manually testing: Create a big hierarchy, like `<ListView>` example. Use the `TimerMixin` example to generate multiple calls.
Test the failure callback on the `Geolocation` example.
All the calls go through this entry point, so it's hard to miss if it's broken.
Summary:
@public
This removes the last piece of data that was still stored on the DATA section,
`RCT_IMPORT_METHOD`. JS calls now dynamically populate a lookup table simultaneously
on JS and Native, instead of creating a mapping at load time.
Test Plan: Everything still runs, tests are green.
Summary:
@public
`[Bridge] Add support for JS async functions to RCT_EXPORT_METHOD` was imported but broke some internal code, reverting the `MessageQueue` that caused the issues and add a test, since the method is not used yet.
Test Plan: Run the test o/
Summary:
Adds support for JS async methods and helps guide people writing native modules w.r.t. the callbacks. With this diff, on the native side you write:
```objc
RCT_EXPORT_METHOD(getValueAsync:(NSString *)key
resolver:(RCTPromiseResolver)resolve
rejecter:(RCTPromiseRejecter)reject)
{
NSError *error = nil;
id value = [_nativeDataStore valueForKey:key error:&error];
// "resolve" and "reject" are automatically defined blocks that take
// any object (nil is OK) and an NSError, respectively
if (!error) {
resolve(value);
} else {
reject(error);
}
}
```
On the JS side, you can write:
```js
var {DemoDataStore} = require('react-native').NativeModules;
DemoDataStore.getValueAsync('sample-key').then((value) => {
console.log('Got:', value);
}, (error) => {
console.error(error);
// "error" is an Error object whose message is the NSError's description.
// The NSError's code and domain are also set, and the native trace i
Closes https://github.com/facebook/react-native/pull/1232
Github Author: James Ide <ide@jameside.com>
Test Plan: Imported from GitHub, without a `Test Plan:` line.
Summary:
This allows you to select the displayed owner hierarchy, and see the styles,
props, and position.
@public
Test Plan:
Open the inspector, select something in the middle of the page. Click the
breadcrumb train in the inspector, and verify that:
- styles are reflected
- margin/padding/box is correct
- the highlight updates to show the selected item
See video as well.
[Video](https://www.latest.facebook.com/pxlcld/mqnl)
Screenshot
{F22518618}
Dave Miller
Renyu Liu
Fabian Eichinger
Spencer Ahrens
Martín Bigio
Janic Duplessis
Jan Kassens
Tim Yung
David Aurelio
Kyle Corbitt
Nick Lockwood
Huang Yu
Christoph Pojer
Mike Armstrong
Calvin Freitas
Christopher Chedeau
Martin Konicek
Martin Konicek
Tadeu Zagallo
Justas Brazauskas
Sebastian Markbage
Felipe Martim
Gabe Levi
Christopher Dro
Huang Yu
Alexey Lang
Milen Dzhumerov
Pieter De Baets
Andy Street
Jason Brown
Felix Oghină
Andrei Coman
Eric Vicenti
Jason Zhekov
Jing Chen
chirag04
Krzysztof Magiera
Olivier Notteghem
Artem Yarulin
James Ide
Jared Forsyth
