Commit Graph

4 Commits

Author SHA1 Message Date
Michał Osadnik 75d01075d4 Allow primitivies without default values
Summary:
It's not needed to keep required providing default values even if they are not actually relevant.

Here I add a support for `null`, `0` of `false` instead by default and remove throwing errors if no other default value provided.

Reviewed By: rubennorte

Differential Revision: D16049047

fbshipit-source-id: bc4961af3873190568f2753fc4ec975354896df5
2019-07-01 07:51:25 -07:00
Michał Osadnik 0f83dfab8e Transform BubbleEvent and DirectEvent into DirectEventHandler and BubblingEventHandler
Summary:
It appears that `(e: BubblingEvent<T>) = mixed` exists only in given context and it's pointless to keep in this way. It could be simplified to `BubblingEventHandler<T>` without any negative consequences and that's the motivation of this diff.

The only tradeoff of this decision is leaving an opportunity to declare Bubbling/Direct event in the top of the file bc then analysing the code becomes much more difficult. However, it's not used anywhere so it's not a problem now and probably any time.

Also, changes the names to `DirectEventHandler` and `BubblingEventHandler` which are more related to current state. The names were updated in many places in code.

Reviewed By: rubennorte

Differential Revision: D16054571

fbshipit-source-id: 741d075eb46b80bac8eb73a6b30fc0b448cb3902
2019-07-01 05:13:53 -07:00
Rick Hanlon 9a84970c35 Add paperTopLevelNameDeprecated
Summary:
This diff adds a way for the codegen to handle view configs with non-standard top event names by adding a `paperTopLevelNameDeprecated` field to events in the schema.

## The problem
The problem this is solving is that Android host components build their own options for event settings in the view config. So instead of enforcing `onChange` to use the top level event name `topChange` like iOS does, Android can use `change` or `forbarChange` or anything the person adding the component wanted at the time:

```
// Expected
topChange: {
  registrationName: 'onChange',
},

// Android
bringBackStargateYouCowards: {
  registrationName: 'onChange',
},
```

This is possible because of the way Android builds these settings
```
// On iOS, notice that there's no option to change the top level name:
RCT_EXPORT_VIEW_PROPERTY(onChange, RCTDirectEventBlock);

// On Android, you provide the top level event name
Override
public Map getExportedCustomDirectEventTypeConstants() {
  return MapBuilder.of(
      "bringBackStargateYouCowards",
      MapBuilder.of("registrationName", "onChange"));
}
```

Since the codegen does not allow us to specify the top level event name (similar to iOS), we don't have a way to customize the names to support android

## The solution
To fix this, we're adding an extra option the event flow types:

```
onBubblingChange: (event: BubblingEvent<Event, 'customBubblingName'>) => void,
onDirectChange: (event: DirectEvent<Event, 'customDirectName'>) => void,
```

These will register **both** top level names in the view config:

```
{
  directEventTypes: {
     // Notice the same registration name is configured for different top level events
    topChange: {
      registrationName: 'onChange',
    },
    bringBackStargateYouCowards: {
      registrationName: 'onChange',
    },
  }
}
```
This means when either `topChange` or `bringBackStargateYouCowards` fires it will call the onChange listener. **This gives us the flexibility to rename the native event name without breaking backwards compatibility.** Old apps will work when `bringBackStargateYouCowards` is fired, and new apps with an update will work when `topChange` fires.

Note: only the correct name will be generated for Fabric so technically we don't even really need to migrate the paper names and this prop can be deleted when paper is gone.

Reviewed By: cpojer

Differential Revision: D16042065

fbshipit-source-id: 40d076b43ffbbfc6c65c3c19de481d922a2add62
2019-06-28 06:50:36 -07:00
Rick Hanlon 98b03fa1b9 Switch native codegen over to flow parser
Summary:
This diff switches the native codegen over to the flow parser

It does this by:
- Creating a new e2e directory
- Migrating the schema.js fixtures to flow types in  e2e/
- Updating the buck tests to use the flow type fixtures
- Finally, updating the rest of rn_codegen to use *NativeComponent instead of *Schema.js

Removing all of the schemas in the next diff to keep this one clean

Reviewed By: cpojer

Differential Revision: D15960603

fbshipit-source-id: 3df28b31e618491301578ab7f6e28a80f55404b2
2019-06-27 08:04:13 -07:00