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2675cab92e
[web] Password reset strength checking and UI updates GitOrigin-RevId: 442a5c9e7e9d0a61d3ae649f3526bc3c02fd5704
61 lines
1.9 KiB
JavaScript
61 lines
1.9 KiB
JavaScript
export default function inputValidator(inputEl) {
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const messageEl = document.createElement('div')
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messageEl.className =
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inputEl.getAttribute('data-ol-validation-message-classes') ||
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'small text-danger mt-2'
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messageEl.hidden = true
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inputEl.insertAdjacentElement('afterend', messageEl)
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// Hide messages until the user leaves the input field or submits the form.
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let canDisplayErrorMessages = false
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// Handle all kinds of inputs.
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inputEl.addEventListener('input', handleUpdate)
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inputEl.addEventListener('change', handleUpdate)
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// The user has left the input field.
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inputEl.addEventListener('blur', displayValidationMessages)
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// The user has submitted the form and the current field has errors.
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inputEl.addEventListener('invalid', e => {
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// Block the display of browser error messages.
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e.preventDefault()
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// Force the display of messages.
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inputEl.setAttribute('data-ol-dirty', '')
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displayValidationMessages()
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})
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function handleUpdate() {
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// Mark an input as "dirty": the user has typed something in at some point
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inputEl.setAttribute('data-ol-dirty', '')
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// Provide live updates to content sensitive error message like this:
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// Please include an '@' in the email address. 'foo' is missing an '@'.
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// We should not leave a stale message as the user types.
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updateValidationMessageContent()
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}
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function displayValidationMessages() {
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// Display all the error messages and highlight fields with red border.
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canDisplayErrorMessages = true
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updateValidationMessageContent()
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}
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function updateValidationMessageContent() {
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if (!canDisplayErrorMessages) return
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if (!inputEl.hasAttribute('data-ol-dirty')) return
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if (inputEl.validity.valid) {
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messageEl.hidden = true
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// Require another blur before displaying errors again.
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canDisplayErrorMessages = false
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} else {
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messageEl.textContent = inputEl.validationMessage
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messageEl.hidden = false
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}
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}
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}
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