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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +1 @@ | ||
| 4.3.1 | ||
| 4.4.0 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,28 +1,6 @@ | ||
| /** | ||
| * TODO: Ideally this would be a NodeList.prototype.forEach polyfill | ||
| * This seems to fail in IE8, requires more investigation. | ||
| * See: https://github.com/imagitama/nodelist-foreach-polyfill | ||
| */ | ||
| export function nodeListForEach (nodes, callback) { | ||
| if (window.NodeList.prototype.forEach) { | ||
| return nodes.forEach(callback) | ||
| } | ||
| for (var i = 0; i < nodes.length; i++) { | ||
| callback.call(window, nodes[i], i, nodes) | ||
| } | ||
| } | ||
|
|
||
| // Used to generate a unique string, allows multiple instances of the component without | ||
| // Them conflicting with each other. | ||
| // https://stackoverflow.com/a/8809472 | ||
| export function generateUniqueID () { | ||
| var d = new Date().getTime() | ||
| if (typeof window.performance !== 'undefined' && typeof window.performance.now === 'function') { | ||
| d += window.performance.now() // use high-precision timer if available | ||
| } | ||
| return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) { | ||
| var r = (d + Math.random() * 16) % 16 | 0 | ||
| d = Math.floor(d / 16) | ||
| return (c === 'x' ? r : (r & 0x3 | 0x8)).toString(16) | ||
| }) | ||
| } | ||
| // Implementation of common function is gathered in the `common` folder | ||
| // as some are split in their own modules to limit impacts of the polyfills | ||
| // they require. | ||
| // This module exports the non polyfilled methods as they used to be | ||
| // to avoid breaking changes | ||
| export * from './common/index.mjs' |
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| import '../vendor/polyfills/Element/prototype/closest.mjs' | ||
|
|
||
| /** | ||
| * Returns the value of the given attribute closest to the given element (including itself) | ||
| * | ||
| * @param {HTMLElement} $element - The element to start walking the DOM tree up | ||
| * @param {string} attributeName - The name of the attribute | ||
| * @returns {string | undefined} Attribute value | ||
| */ | ||
| export function closestAttributeValue ($element, attributeName) { | ||
| var closestElementWithAttribute = $element.closest('[' + attributeName + ']') | ||
| if (closestElementWithAttribute) { | ||
| return closestElementWithAttribute.getAttribute(attributeName) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,159 @@ | ||
| /** | ||
| * Common helpers which do not require polyfill. | ||
| * | ||
| * IMPORTANT: If a helper require a polyfill, please isolate it in its own module | ||
| * so that the polyfill can be properly tree-shaken and does not burden | ||
| * the components that do not need that helper | ||
| * | ||
| * @module common/index | ||
| */ | ||
|
|
||
| /** | ||
| * TODO: Ideally this would be a NodeList.prototype.forEach polyfill | ||
| * This seems to fail in IE8, requires more investigation. | ||
| * See: https://github.com/imagitama/nodelist-foreach-polyfill | ||
| * | ||
| * @param {NodeListOf<Element>} nodes - NodeList from querySelectorAll() | ||
| * @param {nodeListIterator} callback - Callback function to run for each node | ||
| * @returns {undefined} | ||
| */ | ||
| export function nodeListForEach (nodes, callback) { | ||
| if (window.NodeList.prototype.forEach) { | ||
| return nodes.forEach(callback) | ||
| } | ||
| for (var i = 0; i < nodes.length; i++) { | ||
| callback.call(window, nodes[i], i, nodes) | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Used to generate a unique string, allows multiple instances of the component | ||
| * without them conflicting with each other. | ||
| * https://stackoverflow.com/a/8809472 | ||
| * | ||
| * @returns {string} Unique ID | ||
| */ | ||
| export function generateUniqueID () { | ||
| var d = new Date().getTime() | ||
| if (typeof window.performance !== 'undefined' && typeof window.performance.now === 'function') { | ||
| d += window.performance.now() // use high-precision timer if available | ||
| } | ||
| return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) { | ||
| var r = (d + Math.random() * 16) % 16 | 0 | ||
| d = Math.floor(d / 16) | ||
| return (c === 'x' ? r : (r & 0x3 | 0x8)).toString(16) | ||
| }) | ||
| } | ||
|
|
||
| /** | ||
| * Config flattening function | ||
| * | ||
| * Takes any number of objects, flattens them into namespaced key-value pairs, | ||
| * (e.g. {'i18n.showSection': 'Show section'}) and combines them together, with | ||
| * greatest priority on the LAST item passed in. | ||
| * | ||
| * @returns {object} A flattened object of key-value pairs. | ||
| */ | ||
| export function mergeConfigs (/* configObject1, configObject2, ...configObjects */) { | ||
| /** | ||
| * Function to take nested objects and flatten them to a dot-separated keyed | ||
| * object. Doing this means we don't need to do any deep/recursive merging of | ||
| * each of our objects, nor transform our dataset from a flat list into a | ||
| * nested object. | ||
| * | ||
| * @param {object} configObject - Deeply nested object | ||
| * @returns {object} Flattened object with dot-separated keys | ||
| */ | ||
| var flattenObject = function (configObject) { | ||
| // Prepare an empty return object | ||
| var flattenedObject = {} | ||
|
|
||
| // Our flattening function, this is called recursively for each level of | ||
| // depth in the object. At each level we prepend the previous level names to | ||
| // the key using `prefix`. | ||
| var flattenLoop = function (obj, prefix) { | ||
| // Loop through keys... | ||
| for (var key in obj) { | ||
| // Check to see if this is a prototypical key/value, | ||
| // if it is, skip it. | ||
| if (!Object.prototype.hasOwnProperty.call(obj, key)) { | ||
| continue | ||
| } | ||
| var value = obj[key] | ||
| var prefixedKey = prefix ? prefix + '.' + key : key | ||
| if (typeof value === 'object') { | ||
| // If the value is a nested object, recurse over that too | ||
| flattenLoop(value, prefixedKey) | ||
| } else { | ||
| // Otherwise, add this value to our return object | ||
| flattenedObject[prefixedKey] = value | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // Kick off the recursive loop | ||
| flattenLoop(configObject) | ||
| return flattenedObject | ||
| } | ||
|
|
||
| // Start with an empty object as our base | ||
| var formattedConfigObject = {} | ||
|
|
||
| // Loop through each of the remaining passed objects and push their keys | ||
| // one-by-one into configObject. Any duplicate keys will override the existing | ||
| // key with the new value. | ||
| for (var i = 0; i < arguments.length; i++) { | ||
| var obj = flattenObject(arguments[i]) | ||
| for (var key in obj) { | ||
| if (Object.prototype.hasOwnProperty.call(obj, key)) { | ||
| formattedConfigObject[key] = obj[key] | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return formattedConfigObject | ||
| } | ||
|
|
||
| /** | ||
| * Extracts keys starting with a particular namespace from a flattened config | ||
| * object, removing the namespace in the process. | ||
| * | ||
| * @param {object} configObject - The object to extract key-value pairs from. | ||
| * @param {string} namespace - The namespace to filter keys with. | ||
| * @returns {object} Flattened object with dot-separated key namespace removed | ||
| */ | ||
| export function extractConfigByNamespace (configObject, namespace) { | ||
| // Check we have what we need | ||
| if (!configObject || typeof configObject !== 'object') { | ||
| throw new Error('Provide a `configObject` of type "object".') | ||
| } | ||
| if (!namespace || typeof namespace !== 'string') { | ||
| throw new Error('Provide a `namespace` of type "string" to filter the `configObject` by.') | ||
| } | ||
| var newObject = {} | ||
| for (var key in configObject) { | ||
| // Split the key into parts, using . as our namespace separator | ||
| var keyParts = key.split('.') | ||
| // Check if the first namespace matches the configured namespace | ||
| if (Object.prototype.hasOwnProperty.call(configObject, key) && keyParts[0] === namespace) { | ||
| // Remove the first item (the namespace) from the parts array, | ||
| // but only if there is more than one part (we don't want blank keys!) | ||
| if (keyParts.length > 1) { | ||
| keyParts.shift() | ||
| } | ||
| // Join the remaining parts back together | ||
| var newKey = keyParts.join('.') | ||
| // Add them to our new object | ||
| newObject[newKey] = configObject[key] | ||
| } | ||
| } | ||
| return newObject | ||
| } | ||
|
|
||
| /** | ||
| * @callback nodeListIterator | ||
| * @param {Element} value - The current node being iterated on | ||
| * @param {number} index - The current index in the iteration | ||
| * @param {NodeListOf<Element>} nodes - NodeList from querySelectorAll() | ||
| * @returns {undefined} | ||
| */ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| import '../vendor/polyfills/Element/prototype/dataset.mjs' | ||
| import '../vendor/polyfills/String/prototype/trim.mjs' | ||
|
|
||
| /** | ||
| * Normalise string | ||
| * | ||
| * 'If it looks like a duck, and it quacks like a duck…' 🦆 | ||
| * | ||
| * If the passed value looks like a boolean or a number, convert it to a boolean | ||
| * or number. | ||
| * | ||
| * Designed to be used to convert config passed via data attributes (which are | ||
| * always strings) into something sensible. | ||
| * | ||
| * @param {string} value - The value to normalise | ||
| * @returns {string | boolean | number | undefined} Normalised data | ||
| */ | ||
| export function normaliseString (value) { | ||
| if (typeof value !== 'string') { | ||
| return value | ||
| } | ||
|
|
||
| var trimmedValue = value.trim() | ||
|
|
||
| if (trimmedValue === 'true') { | ||
| return true | ||
| } | ||
|
|
||
| if (trimmedValue === 'false') { | ||
| return false | ||
| } | ||
|
|
||
| // Empty / whitespace-only strings are considered finite so we need to check | ||
| // the length of the trimmed string as well | ||
| if (trimmedValue.length > 0 && isFinite(trimmedValue)) { | ||
| return Number(trimmedValue) | ||
| } | ||
|
|
||
| return value | ||
| } | ||
|
|
||
| /** | ||
| * Normalise dataset | ||
| * | ||
| * Loop over an object and normalise each value using normaliseData function | ||
| * | ||
| * @param {DOMStringMap} dataset - HTML element dataset | ||
| * @returns {Object<string, string | boolean | number | undefined>} Normalised dataset | ||
| */ | ||
| export function normaliseDataset (dataset) { | ||
| var out = {} | ||
|
|
||
| for (var key in dataset) { | ||
| out[key] = normaliseString(dataset[key]) | ||
| } | ||
|
|
||
| return out | ||
| } |
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