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Fix focus trap when modal form is reloaded with validation errors #1406

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merged 2 commits into from
Nov 13, 2024
Merged

Fix focus trap when modal form is reloaded with validation errors #1406

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d9bc32e
fix(pat modal): fix focus trap when form is reloaded with validation …
petschki Nov 13, 2024
16949bc
implement suggestions
petschki Nov 13, 2024
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95 changes: 43 additions & 52 deletions src/pat/modal/modal.js
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Original file line number Diff line number Diff line change
Expand Up @@ -213,10 +213,10 @@ export default Base.extend({
$form.append(
$(
'<input type="hidden" name="' +
$action.attr("name") +
'" value="' +
$action.attr("value") +
'" />'
$action.attr("name") +
'" value="' +
$action.attr("value") +
'" />'
)
);
}
Expand Down Expand Up @@ -381,12 +381,6 @@ export default Base.extend({
return;
}
var $raw = self.$raw.clone();
// fix for IE9 bug (see http://bugs.jquery.com/ticket/10550)
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$("input:checked", $raw).each(function () {
if (this.setAttribute) {
this.setAttribute("checked", "checked");
}
});

// Object that will be passed to the template
var tplObject = {
Expand Down Expand Up @@ -442,7 +436,7 @@ export default Base.extend({
// The following code will work around this issue:
$("form", self.$modal).on("keydown", function (event) {
// ignore keys which are not enter, and ignore enter inside a textarea.
if (event.keyCode !== 13 || event.target.nodeName === "TEXTAREA") {
if (event.key !== "Enter" || event.target.nodeName === "TEXTAREA") {
return;
}
event.preventDefault();
Expand Down Expand Up @@ -543,7 +537,7 @@ export default Base.extend({
if (self.options.backdropOptions.closeOnEsc === true) {
$(document).on("keydown", function (e) {
if (self.$el.is("." + self.options.templateOptions.classActiveName)) {
if (e.keyCode === 27) {
if (e.key === "Esc") {
// ESC key pressed
self.hide();
}
Expand Down Expand Up @@ -661,12 +655,12 @@ export default Base.extend({
// XXX aria?
self.$raw = $(
"<div><h1>" +
title +
'</h1><div id="content"><div class="modal-image"><img src="' +
src +
'" srcset="' +
srcset +
'" /></div></div></div>'
title +
'</h1><div id="content"><div class="modal-image"><img src="' +
src +
'" srcset="' +
srcset +
'" /></div></div></div>'
);
self._show();
},
Expand Down Expand Up @@ -767,68 +761,64 @@ export default Base.extend({

activateFocusTrap: function () {
var self = this;
var inputsBody = self.$modal
.find("." + self.options.templateOptions.classBodyName)
.first()
.find("select, input[type!=hidden], textarea, button, a");
var inputsFooter = self.$modal
.find("." + self.options.templateOptions.classFooterName)
.first()
.find("select, input[type!=hidden], textarea, button, a");
const modal_el = self.$modal[0];
var inputsBody = modal_el
.querySelector(`.${self.options.templateOptions.classBodyName}`)
.querySelectorAll(`select, input:not([type="hidden"]), textarea, button, a`);
var inputsFooter = modal_el
.querySelector(`.${self.options.templateOptions.classFooterName}`)
.querySelectorAll(`select, input:not([type="hidden"]), textarea, button, a`);
var inputs = [];
for (var i = 0; i < inputsBody.length; i++) {
if ($(inputsBody[i]).is(":visible")) {
inputs.push(inputsBody[i]);
}
}
for (var j = 0; j < inputsFooter.length; j++) {
if ($(inputsFooter[j]).is(":visible")) {
inputs.push(inputsFooter[j]);

for (const el of [...inputsBody, ...inputsFooter]) {
const style = window.getComputedStyle(el);
if (style.display !== 'none' && style.visibility !== 'hidden' && style.opacity !== '0') {
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inputs.push(el);
}
}

if (inputs.length === 0) {
inputs = self.$modal.find(".modal-title");
inputs = modal_el.querySelectorAll(".modal-title");
}
var firstInput = inputs[0];
var lastInput = inputs[inputs.length - 1];
var closeInput = self.$modal.find(".modal-close").first();
$(document).on(
var firstInput = inputs.length !== 0 ? inputs[0] : null;
var lastInput = inputs.length !== 0 ? inputs[inputs.length - 1] : null;
var closeInput = modal_el.querySelector(".modal-close");

modal_el.addEventListener(
"keydown",
"." + self.options.templateOptions.classDialog,
function (e) {
if (e.which === 9) {
(e) => {
if (e.key === "Tab") {
e.preventDefault();

var $target = $(e.target);
var currentIndex = $.inArray($target[0], inputs);
var target = e.target;
var currentIndex = inputs.indexOf(target);
if (currentIndex >= 0 && currentIndex < inputs.length) {
var nextIndex = currentIndex + (e.shiftKey ? -1 : 1);
if (nextIndex < 0 || nextIndex >= inputs.length) {
closeInput.focus();
} else {
inputs[nextIndex].focus();
}
} else if (e.shiftKey) {
} else if (e.shiftKey && lastInput) {
lastInput.focus();
} else {
} else if (firstInput) {
firstInput.focus();
}
}
}
);
if (self.options.backdropOptions.closeOnClick === true) {
self.$modal.on("click", function (e) {
if (
!$(e.target).closest("." + self.options.templateOptions.classModal)
.length
) {
modal_el.addEventListener("click", (e) => {
if (!e.target.closest(`.${self.options.templateOptions.classModal}`)) {
self.hide();
}
});
}

self.$modal.find(".modal-title").focus();
if (firstInput && ["INPUT", "SELECT"].includes(firstInput.nodeName)) {
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// autofocus first element when opening a modal with a form
firstInput.focus();
}
},

positionModal: function () {
Expand Down Expand Up @@ -1023,5 +1013,6 @@ export default Base.extend({
self.positionModal();
registry.scan(self.$modal);
self.emit("afterDraw");
self.activateFocusTrap();
},
});
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