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gitea/web_src/js/modules/tippy.js
wxiaoguang 345aa09756
Fix aria.js bugs: incorrect role element problem, mobile focus problem, tippy problem (#23450)
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>
2023-03-17 11:08:05 +08:00

64 lines
1.9 KiB
JavaScript

import tippy from 'tippy.js';
export function createTippy(target, opts = {}) {
const instance = tippy(target, {
appendTo: document.body,
placement: target.getAttribute('data-placement') || 'top-start',
animation: false,
allowHTML: false,
hideOnClick: false,
interactiveBorder: 30,
ignoreAttributes: true,
maxWidth: 500, // increase over default 350px
arrow: `<svg width="16" height="7"><path d="m0 7 8-7 8 7Z" class="tippy-svg-arrow-outer"/><path d="m0 8 8-7 8 7Z" class="tippy-svg-arrow-inner"/></svg>`,
...(opts?.role && {theme: opts.role}),
...opts,
});
// for popups where content refers to a DOM element, we use the 'tippy-target' class
// to initially hide the content, now we can remove it as the content has been removed
// from the DOM by tippy
if (opts.content instanceof Element) {
opts.content.classList.remove('tippy-target');
}
return instance;
}
export function initTooltip(el, props = {}) {
const content = el.getAttribute('data-content') || props.content;
if (!content) return null;
if (!el.hasAttribute('aria-label')) el.setAttribute('aria-label', content);
return createTippy(el, {
content,
delay: 100,
role: 'tooltip',
...(el.getAttribute('data-tooltip-interactive') === 'true' ? {interactive: true} : {}),
...props,
});
}
export function showTemporaryTooltip(target, content) {
let tippy, oldContent;
if (target._tippy) {
tippy = target._tippy;
oldContent = tippy.props.content;
} else {
tippy = initTooltip(target, {content});
}
tippy.setContent(content);
if (!tippy.state.isShown) tippy.show();
tippy.setProps({
onHidden: (tippy) => {
if (oldContent) {
tippy.setContent(oldContent);
tippy.setProps({onHidden: undefined});
} else {
tippy.destroy();
// after destroy, the `_tippy` is detached, it can't do "setProps (etc...)" anymore
}
},
});
}