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68 lines
2.4 KiB
JavaScript
68 lines
2.4 KiB
JavaScript
// JS Module used to combine all the JS modules used in the application into a single entry point,
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// a bit like `app/__init__` in the Flask app.
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//
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// When processed by a bundler, this is turned into a Immediately Invoked Function Expression (IIFE)
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// The IIFE format allows it to run in browsers that don't support JS Modules.
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//
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// Exported items will be added to the window.GOVUK namespace.
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// For example, `export { Frontend }` will assign `Frontend` to `window.Frontend`
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import Header from 'govuk-frontend/components/header/header';
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import Details from 'govuk-frontend/components/details/details';
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import Button from 'govuk-frontend/components/button/button';
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import Radios from 'govuk-frontend/components/radios/radios';
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/**
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* TODO: Ideally this would be a NodeList.prototype.forEach polyfill
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* This seems to fail in IE8, requires more investigation.
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* See: https://github.com/imagitama/nodelist-foreach-polyfill
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*/
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function nodeListForEach (nodes, callback) {
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if (window.NodeList.prototype.forEach) {
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return nodes.forEach(callback)
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}
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for (var i = 0; i < nodes.length; i++) {
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callback.call(window, nodes[i], i, nodes);
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}
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}
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// Copy of the initAll function from https://github.com/alphagov/govuk-frontend/blob/v2.13.0/src/all.js
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// except it only includes, and initialises, the components used by this application.
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function initAll (options) {
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// Set the options to an empty object by default if no options are passed.
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options = typeof options !== 'undefined' ? options : {}
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// Allow the user to initialise GOV.UK Frontend in only certain sections of the page
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// Defaults to the entire document if nothing is set.
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var scope = typeof options.scope !== 'undefined' ? options.scope : document
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// Find all buttons with [role=button] on the scope to enhance.
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new Button(scope).init()
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// Find all global details elements to enhance.
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var $details = scope.querySelectorAll('details')
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nodeListForEach($details, function ($detail) {
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new Details($detail).init()
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})
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// Find first header module to enhance.
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var $toggleButton = scope.querySelector('[data-module="header"]')
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new Header($toggleButton).init()
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var $radios = scope.querySelectorAll('[data-module="radios"]')
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nodeListForEach($radios, function ($radio) {
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new Radios($radio).init()
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})
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}
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// Create separate namespace for GOVUK Frontend.
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var Frontend = {
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"Header": Header,
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"Details": Details,
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"Button": Button,
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"initAll": initAll
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}
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export {
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Frontend
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}
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