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[Fiber] Use real event priority for hydration scheduling (#28765)
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Stacked on #28751 

Historically explicit hydration scheduling used the reconciler's update
priority to schedule the hydration. There was a lingering todo to switch
to using event priority in the absence of an explicit update priority.
This change updates the hydration priority by referring to the event
priority if no update priority is set
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gnoff authored and rickhanlonii committed Apr 11, 2024
1 parent 00f4435 commit dba6aee
Showing 1 changed file with 2 additions and 5 deletions.
Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,7 @@ import {isHigherEventPriority} from 'react-reconciler/src/ReactEventPriorities';
import {isRootDehydrated} from 'react-reconciler/src/ReactFiberShellHydration';
import {dispatchReplayedFormAction} from './plugins/FormActionEventPlugin';
import {
getCurrentUpdatePriority,
resolveUpdatePriority,
runWithPriority as attemptHydrationAtPriority,
} from '../client/ReactDOMUpdatePriority';

Expand Down Expand Up @@ -333,10 +333,7 @@ function attemptExplicitHydrationTarget(
}

export function queueExplicitHydrationTarget(target: Node): void {
// TODO: This will read the priority if it's dispatched by the React
// event system but not native events. Should read window.event.type, like
// we do for updates (getCurrentEventPriority).
const updatePriority = getCurrentUpdatePriority();
const updatePriority = resolveUpdatePriority();
const queuedTarget: QueuedHydrationTarget = {
blockedOn: null,
target: target,
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