76 lines
3.3 KiB
Vue
76 lines
3.3 KiB
Vue
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<template>
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<DocSectionText id="accessibility" label="Accessibility" v-bind="$attrs">
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<h3>Screen Reader</h3>
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<p>
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Accordion header elements have a <i>button</i> role, an <i>aria-label</i> defined using the <i>label</i> property of the menuitem model and <i>aria-controls</i> to define the id of the content section along with <i>aria-expanded</i> for
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the visibility state.
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</p>
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<p>The content of an accordion panel uses <i>region</i> role, defines an id that matches the <i>aria-controls</i> of the header and <i>aria-labelledby</i> referring to the id of the header.</p>
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<p>
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The tree elements has a <i>tree</i> as the role and each menu item has a <i>treeitem</i> role along with <i>aria-label</i>, <i>aria-selected</i> and <i>aria-expanded</i> attributes. The container element of a treenode has the
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<i>group</i> role. The <i>aria-setsize</i>, <i>aria-posinset</i> and <i>aria-level</i> attributes are calculated implicitly and added to each treeitem.
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</p>
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<h3>Header Keyboard Support</h3>
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<div class="doc-tablewrapper">
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<table class="doc-table">
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<thead>
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<tr>
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<th>Key</th>
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<th>Function</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td>
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<i>tab</i>
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</td>
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<td>Moves focus to the next the focusable element in the page tab sequence.</td>
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</tr>
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<tr>
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<td><i>shift</i> + <i>tab</i></td>
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<td>Moves focus to the previous the focusable element in the page tab sequence.</td>
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</tr>
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<tr>
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<td>
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<i>enter</i>
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</td>
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<td>Toggles the visibility of the content.</td>
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</tr>
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<tr>
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<td>
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<i>space</i>
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</td>
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<td>Toggles the visibility of the content.</td>
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</tr>
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<tr>
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<td>
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<i>down arrow</i>
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</td>
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<td>Moves focus to the next header. If focus is on the last header, moves focus to the first header.</td>
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</tr>
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<tr>
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<td>
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<i>up arrow</i>
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</td>
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<td>Moves focus to the previous header. If focus is on the first header, moves focus to the last header.</td>
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</tr>
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<tr>
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<td>
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<i>home</i>
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</td>
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<td>Moves focus to the first header.</td>
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</tr>
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<tr>
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<td>
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<i>end</i>
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</td>
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<td>Moves focus to the last header.</td>
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</tr>
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</tbody>
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</table>
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</div>
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</DocSectionText>
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</template>
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