@vaadin/hilla-react-signals/events.js

Signals for Hilla React

import { nanoid } from 'nanoid';
export function createSetStateEvent(value, signalId, parentSignalId) {
    return {
        id: signalId ?? nanoid(),
        type: 'set',
        value,
        accepted: false,
        ...(parentSignalId !== undefined ? { parentSignalId } : {}),
    };
}
export function createReplaceStateEvent(expected, value, signalId, parentSignalId) {
    return {
        id: signalId ?? nanoid(),
        type: 'replace',
        value,
        expected,
        accepted: false,
        ...(parentSignalId !== undefined ? { parentSignalId } : {}),
    };
}
export function createIncrementStateEvent(delta) {
    return {
        id: nanoid(),
        type: 'increment',
        value: delta,
        accepted: false,
    };
}
export function createInsertLastStateEvent(value) {
    return {
        id: nanoid(),
        type: 'insert',
        value,
        position: 'last',
        accepted: false,
    };
}
export function createRemoveStateEvent(entryId) {
    return {
        id: nanoid(),
        type: 'remove',
        entryId,
        value: undefined,
        accepted: false,
    };
}
function isStateEvent(event) {
    return (typeof event === 'object' &&
        event !== null &&
        typeof event.id === 'string' &&
        typeof event.type === 'string' &&
        typeof event.value !== 'undefined' &&
        typeof event.accepted === 'boolean');
}
export function isSnapshotStateEvent(event) {
    return isStateEvent(event) && event.type === 'snapshot';
}
export function isSetStateEvent(event) {
    return isStateEvent(event) && event.type === 'set';
}
export function isReplaceStateEvent(event) {
    return (isStateEvent(event) && typeof event.expected !== 'undefined' && event.type === 'replace');
}
export function isIncrementStateEvent(event) {
    return isStateEvent(event) && event.type === 'increment';
}
export function isListSnapshotStateEvent(event) {
    return (typeof event === 'object' &&
        event !== null &&
        typeof event.id === 'string' &&
        event.type === 'snapshot' &&
        event.entries instanceof Array &&
        typeof event.accepted !== 'undefined');
}
export function isInsertLastStateEvent(event) {
    return isStateEvent(event) && event.type === 'insert' && event.position === 'last';
}
export function isRemoveStateEvent(event) {
    return (typeof event === 'object' &&
        event !== null &&
        typeof event.id === 'string' &&
        event.type === 'remove' &&
        typeof event.entryId === 'string' &&
        typeof event.value === 'undefined');
}
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