Repeater-scope NPM

repeater-scope

The utils for repeated item scope event handlers in Velo by Wix.

Velo by Wix

How to use

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API

Using global select function $w() you can select needed elements group in Repeater Item Template.

useScope(event)
createScope(cb)
getRepeater(event) (since v2.0.0)
updateItem(event, callback) (since v2.0.0)

useScope

Automatic find the parent Repeater by emitted event object.

import { useScope } from 'repeater-scope';

$w.onReady(() => {
  // use dynamic event handler with global selector function $w
  $w('#repeatedButton').onClick((event) => {
    const { $item, itemData, index, data } = useScope(event);

    $item('#repeatedText').text = itemData.title;
  });
});

// or a static event handler
export function repeatedButton_dblClick(event) {
  const { $item, itemData, index, data } = useScope(event);
};

createScope

Create scope function with specific data array. It can be useful with state management libraries.

import { createScope } from 'repeater-scope';

// Create a scope with a callback function that returns actual repeater data.
const useScope = createScope(() => {
  return $w('#repeater').data;
});

export function repeatedButton_Click(event) {
  const { $item, itemData, index, data } = useScope(event);
};

getRepeater

Gets parent Repeater by event

import { getRepeater } from 'repeater-scope';

$w.onReady(() => {
  $w('#repeatedButton').onClick((event) => {
    const $repeater = getRepeater(event);

    $repeater.hide();
  });
});

updateItem

Update Repeated Item by event

import { updateItem } from 'repeater-scope';

$w.onReady(() => {
  $w('#repeatedButton').onClick((event) => {
    updateItem(event, ($item, itemData, index) => {
      $item('#repeatedText').text = itemData.title;
    });
  });
});

Syntax

function useScope(event: $w.Event): ScopeData

function createScope(event: $w.Event): ScopeData

type ScopeData = {
  $item: $w.$w;
  itemData: ItemData;
  index: number;
  data: ItemData[];
}

type ItemData = {
  _id: string;
  [key: string]: any;
}

function getRepeater(event: $w.Event): $w.Repeater

function updateItem(event: $w.Event, callback: $w.ForItemCallback): void

Parameters

$item - A selector function with repeated item scope.
itemData - The object from the repeater's data array that corresponds to the repeated item being created.
index - The index of the itemData object in the data array.
data - A repeater's data array