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document.addEventListener('DOMContentLoaded', () => {
initMaterializeHelper(window.materializeHelper || {})
})
function initMaterializeHelper(customOptions) {
const options = {
debug: false,
selectOptions: true,
selectTriggers: true,
autocompletedInputLabels: true,
...customOptions
}
if (options.selectOptions)
fixSelectOptions(options.debug)
fixNavbarDropdown(options.debug)
if (options.selectTriggers)
fixSelectTriggers(options.debug)
if (options.autocompletedInputLabels)
fixAutocompletedInputLabels(options.debug)
}
/**
* Issue: Select element is misbehaving on iOS.
* When clicking one option, other one is being selected...
*/
function fixSelectOptions(debug) {
setTimeout(() => { // To be called after M.FormSelect.init()
let dragging = false
const opts = { passive: false }
const options = document.querySelectorAll('.select-wrapper ul.select-dropdown li')
if (options.length && debug) {
console.info('[Materialize Helper] Fixed select options', { options })
}
for (const option of options) {
option.addEventListener('touchmove', () => { dragging = true }, opts)
option.addEventListener('touchstart', () => { dragging = false }, opts)
option.addEventListener('touchend', (e) => {
if (dragging) return
else e.stopPropagation()
}, opts)
}
}, 0)
}
function fixNavbarDropdown(debug) {
setTimeout(() => { // To be called after M.FormSelect.init()
let dragging = false
const opts = { passive: false }
const options = document.querySelectorAll('ul.dropdown-content li')
if (options.length && debug) {
console.info('[Materialize Helper] Fixed navbar dropdown', { options })
}
for (const option of options) {
option.addEventListener('touchmove', () => { dragging = true }, opts)
option.addEventListener('touchstart', () => { dragging = false }, opts)
option.addEventListener('touchend', (e) => {
if (dragging) return
else e.stopPropagation()
}, opts)
}
}, 0)
}
/**
* Issue: Select triggers are causing Lighthouse warnings.
*/
function fixSelectTriggers(debug) {
setTimeout(() => { // To be called after M.FormSelect.init()
const triggers = document.querySelectorAll('input.select-dropdown.dropdown-trigger')
for (const trigger of triggers) {
const wrapper = trigger.closest('.select-wrapper')
const select = wrapper.querySelector('select')
const option = select.options[select.selectedIndex]
trigger.placeholder = option.text
}
if (triggers.length && debug) {
console.info('[Materialize Helper] Fixed select triggers', { triggers })
}
}, 0)
}
/**
* Issue: Input label is covering an input when it's autocompleted.
*/
function fixAutocompletedInputLabels(debug) {
document.addEventListener('onautocomplete', function(e) {
const input = e.target
const label = input.parentNode.querySelector(`label[for="${input.id}"]`)
const autocompleted = input.hasAttribute('autocompleted')
if (autocompleted && label) {
label.classList.add('active')
input.classList.add('valid')
if (debug) {
console.info('[Materialize Helper] Fixed autocompleted input label', { input, label })
}
}
})
}
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