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Fix aria.js bugs: incorrect role element problem, mobile focus problem, tippy problem (#23450)

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This PR is extracted from #23346 to address some unclear (I don't
understand) code-belonging concerns.

This PR needs to be backported, otherwise the `aria.js` is too buggy in
some cases. Since there would be two minor conflicts, I will do the
backport manually.

Before: the `aria.js` is still buggy in some cases.

After: tested with AppleVoice, Android TalkBack

* Fix incorrect dropdown init code
* Fix incorrect role element (the menu role should be on the `$menu`
element, but not on the `$focusable`)
* Fix the focus-show-click-hide problem on mobile. Now the language menu
works as expected
* Fix incorrect dropdown template function setting
* Clarify the logic in aria.js
* Hide item's tippy after menu gets hidden
* Fix incorrect tippy `setProps` after `destroy`
* Fix UI lag problem when page gets redirected during menu hiding
animation with screen reader
* Improve comments
* Implement the layout proposed by #19861

<details>


d74a7efb60/web_src/js/features/aria.md (L38-L47)

</details>
This commit is contained in:
wxiaoguang 2023-03-17 11:08:05 +08:00 • committed by GitHub
parent e200c68bad
commit 345aa09756
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8 changed files with 203 additions and 90 deletions
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35
web_src/js/features/common-global.js
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@ -89,9 +89,14 @@ export function initGlobalCommon() {
// Semantic UI modules.
const $uiDropdowns = $('.ui.dropdown');
$uiDropdowns.filter(':not(.custom)').dropdown({
fullTextSearch: 'exact'
});
// do not init "custom" dropdowns, "custom" dropdowns are managed by their own code.
$uiDropdowns.filter(':not(.custom)').dropdown({fullTextSearch: 'exact'});
// The "jump" means this dropdown is mainly used for "menu" purpose,
// clicking an item will jump to somewhere else or trigger an action/function.
// When a dropdown is used for non-refresh actions with tippy,
// it must have this "jump" class to hide the tippy when dropdown is closed.
$uiDropdowns.filter('.jump').dropdown({
action: 'hide',
onShow() {
@ -101,17 +106,23 @@ export function initGlobalCommon() {
},
onHide() {
this._tippy?.enable();
// hide all tippy elements of items after a while. eg: use Enter to click "Copy Link" in the Issue Context Menu
setTimeout(() => {
const $dropdown = $(this);
if ($dropdown.dropdown('is hidden')) {
$(this).find('.menu > .item').each((_, item) => {
item._tippy?.hide();
});
}
}, 2000);
},
fullTextSearch: 'exact'
});
$uiDropdowns.filter('.slide.up').dropdown({
transition: 'slide up',
fullTextSearch: 'exact'
});
$uiDropdowns.filter('.upward').dropdown({
direction: 'upward',
fullTextSearch: 'exact'
});
// special animations/popup-directions
$uiDropdowns.filter('.slide.up').dropdown({transition: 'slide up'});
$uiDropdowns.filter('.upward').dropdown({direction: 'upward'});
attachDropdownAria($uiDropdowns);
attachCheckboxAria($('.ui.checkbox'));