mirror of
https://github.com/go-gitea/gitea.git
synced 2024-11-21 01:14:31 +08:00
Remove jQuery .attr from the Fomantic dropdowns (#30114)
- Switched from jQuery `attr` to plain javascript `getAttribute` and `setAttribute` - Tested the dropdowns and they work as before Signed-off-by: Yarden Shoham <git@yardenshoham.com> Co-authored-by: Giteabot <teabot@gitea.io>
This commit is contained in:
Yarden Shoham
GitHub
parent
a190f68f1b
commit
0922ce8191
@ -21,12 +21,11 @@ function ariaDropdownFn(...args) {
|
||||
// it means that this call will reset the dropdown internal settings, then we need to re-delegate the callbacks.
|
||||
const needDelegate = (!args.length || typeof args[0] !== 'string');
|
||||
for (const el of this) {
|
||||
const $dropdown = $(el);
|
||||
if (!el[ariaPatchKey]) {
|
||||
attachInit($dropdown);
|
||||
attachInit(el);
|
||||
}
|
||||
if (needDelegate) {
|
||||
delegateOne($dropdown);
|
||||
delegateOne($(el));
|
||||
}
|
||||
}
|
||||
return ret;
|
||||
@ -40,17 +39,23 @@ function updateMenuItem(dropdown, item) {
|
||||
item.setAttribute('tabindex', '-1');
|
||||
for (const el of item.querySelectorAll('a, input, button')) el.setAttribute('tabindex', '-1');
|
||||
}
|
||||
|
||||
// make the label item and its "delete icon" has correct aria attributes
|
||||
function updateSelectionLabel($label) {
|
||||
/**
|
||||
* make the label item and its "delete icon" have correct aria attributes
|
||||
* @param {HTMLElement} label
|
||||
*/
|
||||
function updateSelectionLabel(label) {
|
||||
// the "label" is like this: "<a|div class="ui label" data-value="1">the-label-name <i|svg class="delete icon"/></a>"
|
||||
if (!$label.attr('id')) $label.attr('id', generateAriaId());
|
||||
$label.attr('tabindex', '-1');
|
||||
$label.find('.delete.icon').attr({
|
||||
'aria-hidden': 'false',
|
||||
'aria-label': window.config.i18n.remove_label_str.replace('%s', $label.attr('data-value')),
|
||||
'role': 'button',
|
||||
});
|
||||
if (!label.id) {
|
||||
label.id = generateAriaId();
|
||||
}
|
||||
label.tabIndex = -1;
|
||||
|
||||
const deleteIcon = label.querySelector('.delete.icon');
|
||||
if (deleteIcon) {
|
||||
deleteIcon.setAttribute('aria-hidden', 'false');
|
||||
deleteIcon.setAttribute('aria-label', window.config.i18n.remove_label_str.replace('%s', label.getAttribute('data-value')));
|
||||
deleteIcon.setAttribute('role', 'button');
|
||||
}
|
||||
}
|
||||
|
||||
// delegate the dropdown's template functions and callback functions to add aria attributes.
|
||||
@ -86,43 +91,44 @@ function delegateOne($dropdown) {
|
||||
const dropdownOnLabelCreateOld = dropdownCall('setting', 'onLabelCreate');
|
||||
dropdownCall('setting', 'onLabelCreate', function(value, text) {
|
||||
const $label = dropdownOnLabelCreateOld.call(this, value, text);
|
||||
updateSelectionLabel($label);
|
||||
updateSelectionLabel($label[0]);
|
||||
return $label;
|
||||
});
|
||||
}
|
||||
|
||||
// for static dropdown elements (generated by server-side template), prepare them with necessary aria attributes
|
||||
function attachStaticElements($dropdown, $focusable, $menu) {
|
||||
const dropdown = $dropdown[0];
|
||||
|
||||
function attachStaticElements(dropdown, focusable, menu) {
|
||||
// prepare static dropdown menu list popup
|
||||
if (!$menu.attr('id')) $menu.attr('id', generateAriaId());
|
||||
$menu.find('> .item').each((_, item) => updateMenuItem(dropdown, item));
|
||||
if (!menu.id) {
|
||||
menu.id = generateAriaId();
|
||||
}
|
||||
|
||||
$(menu).find('> .item').each((_, item) => updateMenuItem(dropdown, item));
|
||||
|
||||
// this role could only be changed after its content is ready, otherwise some browsers+readers (like Chrome+AppleVoice) crash
|
||||
$menu.attr('role', dropdown[ariaPatchKey].listPopupRole);
|
||||
menu.setAttribute('role', dropdown[ariaPatchKey].listPopupRole);
|
||||
|
||||
// prepare selection label items
|
||||
$dropdown.find('.ui.label').each((_, label) => updateSelectionLabel($(label)));
|
||||
for (const label of dropdown.querySelectorAll('.ui.label')) {
|
||||
updateSelectionLabel(label);
|
||||
}
|
||||
|
||||
// make the primary element (focusable) aria-friendly
|
||||
$focusable.attr({
|
||||
'role': $focusable.attr('role') ?? dropdown[ariaPatchKey].focusableRole,
|
||||
'aria-haspopup': dropdown[ariaPatchKey].listPopupRole,
|
||||
'aria-controls': $menu.attr('id'),
|
||||
'aria-expanded': 'false',
|
||||
});
|
||||
focusable.setAttribute('role', focusable.getAttribute('role') ?? dropdown[ariaPatchKey].focusableRole);
|
||||
focusable.setAttribute('aria-haspopup', dropdown[ariaPatchKey].listPopupRole);
|
||||
focusable.setAttribute('aria-controls', menu.id);
|
||||
focusable.setAttribute('aria-expanded', 'false');
|
||||
|
||||
// use tooltip's content as aria-label if there is no aria-label
|
||||
const tooltipContent = $dropdown.attr('data-tooltip-content');
|
||||
if (tooltipContent && !$dropdown.attr('aria-label')) {
|
||||
$dropdown.attr('aria-label', tooltipContent);
|
||||
const tooltipContent = dropdown.getAttribute('data-tooltip-content');
|
||||
if (tooltipContent && !dropdown.getAttribute('aria-label')) {
|
||||
dropdown.setAttribute('aria-label', tooltipContent);
|
||||
}
|
||||
}
|
||||
|
||||
function attachInit($dropdown) {
|
||||
const dropdown = $dropdown[0];
|
||||
function attachInit(dropdown) {
|
||||
dropdown[ariaPatchKey] = {};
|
||||
if ($dropdown.hasClass('custom')) return;
|
||||
if (dropdown.classList.contains('custom')) return;
|
||||
|
||||
// Dropdown has 2 different focusing behaviors
|
||||
// * with search input: the input is focused, and it works with aria-activedescendant pointing another sibling element.
|
||||
@ -139,64 +145,66 @@ function attachInit($dropdown) {
|
||||
|
||||
// TODO: multiple selection is only partially supported. Check and test them one by one in the future.
|
||||
|
||||
const $textSearch = $dropdown.find('input.search').eq(0);
|
||||
const $focusable = $textSearch.length ? $textSearch : $dropdown; // the primary element for focus, see comment above
|
||||
if (!$focusable.length) return;
|
||||
const textSearch = dropdown.querySelector('input.search');
|
||||
const focusable = textSearch || dropdown; // the primary element for focus, see comment above
|
||||
if (!focusable) return;
|
||||
|
||||
// as a combobox, the input should not have autocomplete by default
|
||||
if ($textSearch.length && !$textSearch.attr('autocomplete')) {
|
||||
$textSearch.attr('autocomplete', 'off');
|
||||
if (textSearch && !textSearch.getAttribute('autocomplete')) {
|
||||
textSearch.setAttribute('autocomplete', 'off');
|
||||
}
|
||||
|
||||
let $menu = $dropdown.find('> .menu');
|
||||
if (!$menu.length) {
|
||||
let menu = $(dropdown).find('> .menu')[0];
|
||||
if (!menu) {
|
||||
// some "multiple selection" dropdowns don't have a static menu element in HTML, we need to pre-create it to make it have correct aria attributes
|
||||
$menu = $('<div class="menu"></div>').appendTo($dropdown);
|
||||
menu = document.createElement('div');
|
||||
menu.classList.add('menu');
|
||||
dropdown.append(menu);
|
||||
}
|
||||
|
||||
// There are 2 possible solutions about the role: combobox or menu.
|
||||
// The idea is that if there is an input, then it's a combobox, otherwise it's a menu.
|
||||
// Since #19861 we have prepared the "combobox" solution, but didn't get enough time to put it into practice and test before.
|
||||
const isComboBox = $dropdown.find('input').length > 0;
|
||||
const isComboBox = dropdown.querySelectorAll('input').length > 0;
|
||||
|
||||
dropdown[ariaPatchKey].focusableRole = isComboBox ? 'combobox' : 'menu';
|
||||
dropdown[ariaPatchKey].listPopupRole = isComboBox ? 'listbox' : '';
|
||||
dropdown[ariaPatchKey].listItemRole = isComboBox ? 'option' : 'menuitem';
|
||||
|
||||
attachDomEvents($dropdown, $focusable, $menu);
|
||||
attachStaticElements($dropdown, $focusable, $menu);
|
||||
attachDomEvents(dropdown, focusable, menu);
|
||||
attachStaticElements(dropdown, focusable, menu);
|
||||
}
|
||||
|
||||
function attachDomEvents($dropdown, $focusable, $menu) {
|
||||
const dropdown = $dropdown[0];
|
||||
function attachDomEvents(dropdown, focusable, menu) {
|
||||
// when showing, it has class: ".animating.in"
|
||||
// when hiding, it has class: ".visible.animating.out"
|
||||
const isMenuVisible = () => ($menu.hasClass('visible') && !$menu.hasClass('out')) || $menu.hasClass('in');
|
||||
const isMenuVisible = () => (menu.classList.contains('visible') && !menu.classList.contains('out')) || menu.classList.contains('in');
|
||||
|
||||
// update aria attributes according to current active/selected item
|
||||
const refreshAriaActiveItem = () => {
|
||||
const menuVisible = isMenuVisible();
|
||||
$focusable.attr('aria-expanded', menuVisible ? 'true' : 'false');
|
||||
focusable.setAttribute('aria-expanded', menuVisible ? 'true' : 'false');
|
||||
|
||||
// if there is an active item, use it (the user is navigating between items)
|
||||
// otherwise use the "selected" for combobox (for the last selected item)
|
||||
const $active = $menu.find('> .item.active, > .item.selected');
|
||||
const active = $(menu).find('> .item.active, > .item.selected')[0];
|
||||
if (!active) return;
|
||||
// if the popup is visible and has an active/selected item, use its id as aria-activedescendant
|
||||
if (menuVisible) {
|
||||
$focusable.attr('aria-activedescendant', $active.attr('id'));
|
||||
focusable.setAttribute('aria-activedescendant', active.id);
|
||||
} else if (dropdown[ariaPatchKey].listPopupRole === 'menu') {
|
||||
// for menu, when the popup is hidden, no need to keep the aria-activedescendant, and clear the active/selected item
|
||||
$focusable.removeAttr('aria-activedescendant');
|
||||
$active.removeClass('active').removeClass('selected');
|
||||
focusable.removeAttribute('aria-activedescendant');
|
||||
active.classList.remove('active', 'selected');
|
||||
}
|
||||
};
|
||||
|
||||
$dropdown.on('keydown', (e) => {
|
||||
dropdown.addEventListener('keydown', (e) => {
|
||||
// here it must use keydown event before dropdown's keyup handler, otherwise there is no Enter event in our keyup handler
|
||||
if (e.key === 'Enter') {
|
||||
const dropdownCall = fomanticDropdownFn.bind($dropdown);
|
||||
const dropdownCall = fomanticDropdownFn.bind($(dropdown));
|
||||
let $item = dropdownCall('get item', dropdownCall('get value'));
|
||||
if (!$item) $item = $menu.find('> .item.selected'); // when dropdown filters items by input, there is no "value", so query the "selected" item
|
||||
if (!$item) $item = $(menu).find('> .item.selected'); // when dropdown filters items by input, there is no "value", so query the "selected" item
|
||||
// if the selected item is clickable, then trigger the click event.
|
||||
// we can not click any item without check, because Fomantic code might also handle the Enter event. that would result in double click.
|
||||
if ($item && ($item[0].matches('a') || $item.hasClass('js-aria-clickable'))) $item[0].click();
|
||||
@ -209,7 +217,7 @@ function attachDomEvents($dropdown, $focusable, $menu) {
|
||||
// without the delay for hiding, the UI will be somewhat laggy and sometimes may get stuck in the animation.
|
||||
const deferredRefreshAriaActiveItem = (delay = 0) => { setTimeout(refreshAriaActiveItem, delay) };
|
||||
dropdown[ariaPatchKey].deferredRefreshAriaActiveItem = deferredRefreshAriaActiveItem;
|
||||
$dropdown.on('keyup', (e) => { if (e.key.startsWith('Arrow')) deferredRefreshAriaActiveItem(); });
|
||||
dropdown.addEventListener('keyup', (e) => { if (e.key.startsWith('Arrow')) deferredRefreshAriaActiveItem(); });
|
||||
|
||||
// if the dropdown has been opened by focus, do not trigger the next click event again.
|
||||
// otherwise the dropdown will be closed immediately, especially on Android with TalkBack
|
||||
|
||||
Loading…
Reference in New Issue
Block a user