mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
76613ec4cd
Summary:
## Context
Inside native ViewConfigs, events are declared using these bubbling/direct EventType maps:
```
{
uiViewClassName: '...',
bubblingEventTypes: {
topFoo: {
registrationName: "onFoo"
}
},
directEventTypes: {},
validAttributes: {
},
}
```
**Pattern:** Note that the top name (i.e: topFoo) is just the registration name (i.e: onFoo) but with "on" replaced with "top".
On Android, registration names and top names don't have to follow this pattern. The top name can be **anything.** See ReactionsDockView:
https://www.internalfb.com/code/fbsource/[c430d46ed69a03a9d9f40cefa335a6d8bb92f8ec]/fbandroid/java/com/facebook/feedback/reactions/ui/overlay/react/ReactionsDockViewManager.java?lines=26-28%2C32-34%2C38
Here, ReactionDismissedEvent.EVENT_NAME is "topDismiss"
https://www.internalfb.com/code/fbsource/[c9f92314a5c46e561a831100dab82164808b05d0]/fbandroid/java/com/facebook/feedback/reactions/ui/overlay/react/ReactionDismissedEvent.java?lines=10-11%2C26
And so to provide you the flexibility to specify a custom topName, the codegen supports a customTopName in the direct/bubbling event types:
```
onDismissWithFeedbackReaction: DirectEventHandler<Event, 'topDismiss'>,
```
This generates the two bubbling event type entries in ReactionsDockView:
```
{
uiViewClassName: '...',
bubblingEventTypes: {
// custom top name
topDismiss: {
registrationName: "onDismissWithFeedbackReaction"
},
// what the top name should actually be
topDismissWithFeedbackReaction: {
registrationName: "onDismissWithFeedbackReaction"
}
},
directEventTypes: {},
validAttributes: {
},
}
```
**The Problem:** The entry created for "topDismissWithFeedbackReaction" is not necessary. This additional entry creates a discrepancy between ReactionsDockView's static ViewConfig and native ViewConfig. Therefore, this diff removes the second unnecessary entry.
Changelog: [Internal]
Reviewed By: JoshuaGross
Differential Revision: D33418730
fbshipit-source-id: 3988ff6906ad1b2e1ef988a19c64d1e042381ab1