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Add ARIA support for Fomantic UI checkboxes (#22599)

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Replace #22593

This is a general approach to add ARIA support for all Fomantic UI
checkboxes (including radioboxes)

* Pros:
* General approach, it works for all Fomantic UI checkboxes / radioboxes
    * No need to write IDs manually everywhere
    * No need to tell new contributors to write IDs again and again

* Cons:
* Slightly affects performance, but it's really trivial, because there
was already a heavy `$('.ui.checkbox').checkbox()` for Fomantic UI
before. So everything is still fine.


Screenshot (from the repo setting page, which has various checkboxes):

<details>


![image](https://user-images.githubusercontent.com/2114189/214480937-3a54d36f-55c3-49de-9c45-c4bb21f1f4c6.png)

</details>
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wxiaoguang 2023-01-25 23:52:10 +08:00 committed by GitHub
parent c8139c0f64
commit e8ac6a9aea
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2 changed files with 19 additions and 2 deletions
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17
web_src/js/features/aria.js
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@ -98,3 +98,20 @@ function attachOneDropdownAria($dropdown) {
export function attachDropdownAria($dropdowns) {
$dropdowns.each((_, e) => attachOneDropdownAria($(e)));
}
export function attachCheckboxAria($checkboxes) {
$checkboxes.checkbox();
// Fomantic UI checkbox needs to be something like: <div class="ui checkbox"><label /><input /></div>
// It doesn't work well with <label><input />...</label>
// To make it work with aria, the "id"/"for" attributes are necessary, so add them automatically if missing.
// In the future, refactor to use native checkbox directly, then this patch could be removed.
for (const el of $checkboxes) {
const label = el.querySelector('label');
const input = el.querySelector('input');
if (!label || !input || input.getAttribute('id')) continue;
const id = generateAriaId();
input.setAttribute('id', id);
label.setAttribute('for', id);
}
}

4
web_src/js/features/common-global.js
View file

@ -4,7 +4,7 @@ import {mqBinarySearch} from '../utils.js';
import {createDropzone} from './dropzone.js';
import {initCompColorPicker} from './comp/ColorPicker.js';
import {showGlobalErrorMessage} from '../bootstrap.js';
import {attachDropdownAria} from './aria.js';
import {attachCheckboxAria, attachDropdownAria} from './aria.js';
import {handleGlobalEnterQuickSubmit} from './comp/QuickSubmit.js';
import {initTooltip} from '../modules/tippy.js';
import {svg} from '../svg.js';
@ -111,7 +111,7 @@ export function initGlobalCommon() {
});
attachDropdownAria($uiDropdowns);
$('.ui.checkbox').checkbox();
attachCheckboxAria($('.ui.checkbox'));
$('.tabular.menu .item').tab();
$('.tabable.menu .item').tab();