SelectButton | hidden checkbox and radio roles added
parent
af37fb5510
commit
79803baf11
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@ -46,6 +46,12 @@ const SelectButtonProps = [
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type: "string",
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default: "null",
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description: "A property to uniquely identify an option."
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},
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{
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name: "aria-labelledby",
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type: "string",
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default: "null",
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description: "Identifier of the underlying element."
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}
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];
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@ -51,6 +51,10 @@ export interface SelectButtonProps {
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* A property to uniquely identify an option.
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*/
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dataKey?: string | undefined;
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/**
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* Identifier of the underlying element.
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*/
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"aria-labelledby"?: string | undefined;
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}
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export interface SelectButtonSlots {
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@ -1,8 +1,7 @@
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<template>
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<div :class="containerClass" role="group">
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<div v-for="(option, i) of options" :key="getOptionRenderKey(option)" :aria-label="getOptionLabel(option)" role="button" :aria-pressed="isSelected(option)"
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:class="getButtonClass(option)" :tabindex="isOptionDisabled(option) ? null : '0'" v-ripple
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@click="onOptionSelect($event, option)" @keydown="onKeydown($event, option)" @focus="onFocus($event)" @blur="onBlur($event)">
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<div ref="container" :class="containerClass" role="group" :aria-labelledby="ariaLabelledby">
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<div v-for="(option, i) of options" :key="getOptionRenderKey(option)" :tabindex="i === focusedIndex ? '0' : '-1'" :aria-label="getOptionLabel(option)" :role="multiple ? 'checkbox' : 'radio'" :aria-checked="isSelected(option)" :aria-disabled="optionDisabled"
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:class="getButtonClass(option, i)" @click="onOptionSelect($event, option, i)" @keydown="onKeydown($event, option, i)" @focus="onFocus($event)" @blur="onBlur($event, option)" v-ripple>
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<slot name="option" :option="option" :index="i">
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<span class="p-button-label">{{getOptionLabel(option)}}</span>
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</slot>
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@ -11,7 +10,7 @@
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</template>
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<script>
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import {ObjectUtils} from 'primevue/utils';
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import {ObjectUtils,DomHandler} from 'primevue/utils';
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import Ripple from 'primevue/ripple';
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export default {
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@ -25,9 +24,31 @@ export default {
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optionDisabled: null,
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multiple: Boolean,
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disabled: Boolean,
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dataKey: null
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dataKey: null,
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'aria-labelledby': {
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type: String,
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default: null
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}
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},
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data() {
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return {
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focusedIndex: 0
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}
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},
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mounted() {
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this.defaultTabIndexes();
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},
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methods: {
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defaultTabIndexes() {
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let opts = DomHandler.find(this.$refs.container, '.p-button');
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let firstHighlight = DomHandler.findSingle(this.$refs.container, '.p-highlight');
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for (let i = 0; i < opts.length; i++) {
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if ((DomHandler.hasClass(opts[i], 'p-highlight') && ObjectUtils.equals(opts[i], firstHighlight)) || (firstHighlight === null && i == 0)) {
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this.focusedIndex = i;
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}
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}
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},
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getOptionLabel(option) {
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return this.optionLabel ? ObjectUtils.resolveFieldData(option, this.optionLabel) : option;
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},
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@ -40,7 +61,7 @@ export default {
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isOptionDisabled(option) {
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return this.optionDisabled ? ObjectUtils.resolveFieldData(option, this.optionDisabled) : false;
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},
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onOptionSelect(event, option) {
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onOptionSelect(event, option, index) {
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if (this.disabled || this.isOptionDisabled(option)) {
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return;
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}
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@ -49,7 +70,7 @@ export default {
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let optionValue = this.getOptionValue(option);
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let newValue;
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if(this.multiple) {
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if (this.multiple) {
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if (selected)
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newValue = this.modelValue.filter(val => !ObjectUtils.equals(val, optionValue, this.equalityKey));
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else
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@ -59,16 +80,10 @@ export default {
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newValue = selected ? null : optionValue;
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}
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this.focusedIndex = index;
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this.$emit('update:modelValue', newValue);
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this.$emit('change', {event: event, value: newValue});
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},
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onKeydown(event, option) {
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//space
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if (event.which === 32) {
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this.onOptionSelect(event, option);
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event.preventDefault();
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}
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},
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isSelected(option) {
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let selected = false;
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let optionValue = this.getOptionValue(option);
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@ -89,11 +104,60 @@ export default {
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return selected;
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},
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onKeydown(event, option, index) {
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switch (event.code) {
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case 'Space': {
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this.onOptionSelect(event, option, index);
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event.preventDefault();
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break;
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}
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case 'ArrowDown':
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case 'ArrowRight': {
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this.changeTabIndexes(event, 'next');
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event.preventDefault();
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break;
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}
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case 'ArrowUp':
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case 'ArrowLeft': {
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this.changeTabIndexes(event, 'prev');
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event.preventDefault();
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break;
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}
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default:
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//no op
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break;
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}
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},
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changeTabIndexes(event, direction) {
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let firstTabableChild, index;
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for (let i = 0; i <= this.$refs.container.children.length - 1; i++) {
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if (this.$refs.container.children[i].getAttribute('tabindex') === '0')
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firstTabableChild = {elem: this.$refs.container.children[i], index: i};
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}
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if (direction === 'prev') {
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if (firstTabableChild.index === 0) index = this.$refs.container.children.length - 1;
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else index = firstTabableChild.index - 1;
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}
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else {
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if (firstTabableChild.index === this.$refs.container.children.length - 1) index = 0;
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else index = firstTabableChild.index + 1;
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}
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this.focusedIndex = index;
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this.$refs.container.children[index].focus();
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},
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onFocus(event) {
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this.$emit('focus', event);
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},
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onBlur(event) {
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this.$emit('blur', event);
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onBlur(event, option) {
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if (event.target && event.target.parentElement && event.relatedTarget && event.relatedTarget.parentElement && event.target.parentElement.getAttribute('aria-labelledby') !== event.relatedTarget.parentElement.getAttribute('aria-labelledby')) {
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this.defaultTabIndexes();
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}
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this.$emit('blur', event, option);
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},
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getButtonClass(option) {
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return ['p-button p-component', {
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@ -10,14 +10,14 @@
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<div class="content-section implementation">
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<div class="card">
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<h5>Single Selection</h5>
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<SelectButton v-model="value1" :options="options" />
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<h5 id="single">Single Selection</h5>
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<SelectButton v-model="value1" :options="options" aria-labelledby="single" />
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<h5>Multiple Selection</h5>
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<SelectButton v-model="value2" :options="paymentOptions" optionLabel="name" multiple />
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<h5 id="multiple">Multiple Selection</h5>
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<SelectButton v-model="value2" :options="paymentOptions" optionLabel="name" multiple aria-labelledby="multiple" />
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<h5>Custom Content</h5>
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<SelectButton v-model="value3" :options="justifyOptions" optionLabel="value" dataKey="value" >
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<h5 id="custom">Custom Content</h5>
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<SelectButton v-model="value3" :options="justifyOptions" optionLabel="value" dataKey="value" aria-labelledby="custom" >
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<template #option="slotProps">
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<i :class="slotProps.option.icon"></i>
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</template>
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@ -175,11 +175,11 @@ export default {
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<h5>Accessibility</h5>
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<DevelopmentSection>
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<h6>Screen Reader</h6>
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<p>The container element that wraps the buttons has a <i>group</i> role whereas each button element uses <i>button</i> role and <i>aria-pressed</i> is updated depending on selection state.
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Value to describe an option is automatically set using the <i>aria-label</i> property that refers to the label of an option so it is still suggested to define a label even the option display
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consists of presentational content like icons only.</p>
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<p>SelectButton component uses hidden native checkbox role for multiple selection and hidden radio role for single selection that is only visible to screen readers.
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Value to describe the component can be provided via <i>aria-labelledby</i> property.</p>
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<h6>Keyboard Support</h6>
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<p>Keyboard interaction is derived from the native browser handling of checkboxs in a group.</p>
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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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@ -191,7 +191,25 @@ export default {
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<tbody>
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<tr>
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<td><i>tab</i></td>
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<td>Moves focus to the buttons.</td>
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<td>Moves focus to the first selected option, if there is none then first option receives the focus.</td>
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</tr>
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<tr>
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<td>
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<span class="inline-flex flex-column">
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<i class="mb-1">right arrow</i>
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<i>up arrow</i>
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</span>
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</td>
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<td>Moves focus to the previous option.</td>
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</tr>
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<tr>
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<td>
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<span class="inline-flex flex-column">
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<i class="mb-1">left arrow</i>
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<i>down arrow</i>
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</span>
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</td>
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<td>Moves focus to the next option.</td>
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</tr>
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<tr>
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<td><i>space</i></td>
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@ -217,14 +235,14 @@ export default {
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content: `
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<template>
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<div>
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<h5>Single Selection</h5>
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<SelectButton v-model="value1" :options="options" />
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<h5 id="single">Single Selection</h5>
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<SelectButton v-model="value1" :options="options" aria-labelledby="single" />
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<h5>Multiple Selection</h5>
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<SelectButton v-model="value2" :options="paymentOptions" optionLabel="name" multiple />
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<h5 id="multiple">Multiple Selection</h5>
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<SelectButton v-model="value2" :options="paymentOptions" optionLabel="name" multiple aria-labelledby="multiple" />
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<h5>Custom Content</h5>
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<SelectButton v-model="value3" :options="justifyOptions" optionLabel="value" dataKey="value">
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<h5 id="custom">Custom Content</h5>
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<SelectButton v-model="value3" :options="justifyOptions" optionLabel="value" dataKey="value" aria-labelledby="custom">
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<template #option="slotProps">
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<i :class="slotProps.option.icon"></i>
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</template>
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@ -261,14 +279,14 @@ export default {
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content: `
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<template>
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<div>
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<h5>Single Selection</h5>
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<SelectButton v-model="value1" :options="options" />
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<h5 id="single">Single Selection</h5>
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<SelectButton v-model="value1" :options="options" aria-labelledby="single" />
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<h5>Multiple Selection</h5>
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<SelectButton v-model="value2" :options="paymentOptions" optionLabel="name" multiple />
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<h5 id="multiple">Multiple Selection</h5>
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<SelectButton v-model="value2" :options="paymentOptions" optionLabel="name" multiple aria-labelledby="multiple" />
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<h5>Custom Content</h5>
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<SelectButton v-model="value3" :options="justifyOptions" optionLabel="value" dataKey="value">
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<h5 id="custom">Custom Content</h5>
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<SelectButton v-model="value3" :options="justifyOptions" optionLabel="value" dataKey="value" aria-labelledby="custom">
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<template #option="slotProps">
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<i :class="slotProps.option.icon"></i>
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</template>
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@ -307,14 +325,14 @@ export default {
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tabName: 'Browser Source',
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imports: `<script src="https://unpkg.com/primevue@^3/selectbutton/selectbutton.min.js"><\\/script>`,
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content: `<div id="app">
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<h5>Single Selection</h5>
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<p-selectbutton v-model="value1" :options="options"></p-selectbutton>
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<h5 id="single">Single Selection</h5>
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<p-selectbutton v-model="value1" :options="options" aria-labelledby="single"></p-selectbutton>
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<h5>Multiple Selection</h5>
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<p-selectbutton v-model="value2" :options="paymentOptions" option-label="name" multiple></p-selectbutton>
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<h5 id="multiple">Multiple Selection</h5>
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<p-selectbutton v-model="value2" :options="paymentOptions" option-label="name" multiple aria-labelledby="multiple"></p-selectbutton>
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<h5>Custom Content</h5>
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<p-selectbutton v-model="value3" :options="justifyOptions" option-label="value" data-key="value">
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<h5 id="custom">Custom Content</h5>
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<p-selectbutton v-model="value3" :options="justifyOptions" option-label="value" data-key="value" aria-labelledby="custom">
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<template #option="slotProps">
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<i :class="slotProps.option.icon"></i>
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</template>
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