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74 lines
2.2 KiB
Markdown
74 lines
2.2 KiB
Markdown
**This document is used as aria/a11y reference for future developers**
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# Checkbox
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## Accessibility-friendly Checkbox
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The ideal checkboxes should be:
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```html
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<label><input type="checkbox"> ... </label>
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```
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However, related styles aren't supported (not implemented) yet, so at the moment, almost all the checkboxes are still using Fomantic UI checkbox.
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## Fomantic UI Checkbox
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```html
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<div class="ui checkbox">
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<input type="checkbox"> <!-- class "hidden" will be added by $.checkbox() -->
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<label>...</label>
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</div>
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```
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Then the JS `$.checkbox()` should be called to make it work with keyboard and label-clicking, then it works like the ideal checkboxes.
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There is still a problem: Fomantic UI checkbox is not friendly to screen readers, so we add IDs to all the Fomantic UI checkboxes automatically by JS.
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# Dropdown
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## ARIA Dropdown
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There are different solutions:
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* combobox + listbox + option
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* menu + menuitem
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At the moment, `menu + menuitem` seems to work better with Fomantic UI Dropdown, so we only use it now.
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```html
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<div>
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<input role="combobox" aria-haspopup="listbox" aria-expanded="false" aria-controls="the-menu-listbox" aria-activedescendant="item-id-123456">
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<ul id="the-menu-listbox" role="listbox">
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<li role="option" id="item-id-123456" aria-selected="true">
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<a tabindex="-1" href="....">....</a>
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</li>
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</ul>
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</div>
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```
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## Fomantic UI Dropdown
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```html
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<!-- read-only dropdown -->
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<div class="ui dropdown"> <!-- focused here, then it's not perfect to use aria-activedescendant to point to the menu item -->
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<input type="hidden" ...>
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<div class="text">Default</div>
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<div class="menu" tabindex="-1"> <!-- "transition hidden|visible" classes will be added by $.dropdown() and when the dropdown is working -->
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<div class="item active selected">Default</div>
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<div class="item">...</div>
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</div>
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</div>
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<!-- search input dropdown -->
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<div class="ui dropdown">
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<input type="hidden" ...>
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<input class="search" autocomplete="off" tabindex="0"> <!-- focused here -->
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<div class="text"></div>
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<div class="menu" tabindex="-1"> <!-- "transition hidden|visible" classes will be added by $.dropdown() and when the dropdown is working -->
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<div class="item selected">...</div>
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<div class="item">...</div>
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</div>
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</div>
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```
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