307 lines
10 KiB
Vue
307 lines
10 KiB
Vue
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<template>
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<ul :class="containerClass" :role="root ? 'menubar' : 'menu'">
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<template v-for="(item, i) of model" :key="label(item) + i.toString()">
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<li role="none" :class="getItemClass(item)" :style="item.style" v-if="visible(item) && !item.separator"
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@mouseenter="onItemMouseEnter($event, item)">
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<template v-if="!template">
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<router-link v-if="item.to && !disabled(item)" :to="item.to" custom v-slot="{navigate, href, isActive, isExactActive}">
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<a :href="href" @click="onItemClick($event, item, navigate)" :class="linkClass(item, {isActive, isExactActive})" v-ripple @keydown="onItemKeyDown($event, item)" role="menuitem">
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<span :class="['p-menuitem-icon', item.icon]" v-if="item.icon"></span>
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<span class="p-menuitem-text">{{label(item)}}</span>
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</a>
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</router-link>
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<a v-else :href="item.url" :class="linkClass(item)" :target="item.target" :aria-haspopup="item.items != null" :aria-expanded="item === activeItem"
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@click="onItemClick($event, item)" @keydown="onItemKeyDown($event, item)" role="menuitem" :tabindex="disabled(item) ? null : '0'" v-ripple>
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<span :class="['p-menuitem-icon', item.icon]" v-if="item.icon"></span>
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<span class="p-menuitem-text">{{label(item)}}</span>
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<span :class="getSubmenuIcon()" v-if="item.items"></span>
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</a>
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</template>
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<component v-else :is="template" :item="item"></component>
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<MenubarSub :model="item.items" v-if="visible(item) && item.items" :key="label(item) + '_sub_'" :mobileActive="mobileActive"
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@leaf-click="onLeafClick" @keydown-item="onChildItemKeyDown" :parentActive="item === activeItem" :template="template" :exact="exact" />
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</li>
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<li :class="['p-menu-separator', item.class]" :style="item.style" v-if="visible(item) && item.separator" :key="'separator' + i.toString()" role="separator"></li>
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</template>
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</ul>
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</template>
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<script>
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import {DomHandler} from 'primevue/utils';
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import Ripple from 'primevue/ripple';
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export default {
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name: 'MenubarSub',
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emits: ['keydown-item', 'leaf-click'],
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props: {
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model: {
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type: Array,
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default: null
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},
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root: {
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type: Boolean,
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default: false
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},
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popup: {
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type: Boolean,
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default: false
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},
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parentActive: {
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type: Boolean,
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default: false
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},
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mobileActive: {
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type: Boolean,
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default: false
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},
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template: {
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type: Function,
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default: null
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},
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exact: {
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type: Boolean,
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default: true
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}
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},
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documentClickListener: null,
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watch: {
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parentActive(newValue) {
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if (!newValue) {
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this.activeItem = null;
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}
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}
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},
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data() {
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return {
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activeItem: null
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}
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},
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updated() {
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if (this.root && this.activeItem) {
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this.bindDocumentClickListener();
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}
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},
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beforeUnmount() {
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this.unbindDocumentClickListener();
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},
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methods: {
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onItemMouseEnter(event, item) {
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if (this.disabled(item) || this.mobileActive) {
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event.preventDefault();
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return;
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}
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if (this.root) {
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if (this.activeItem || this.popup) {
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this.activeItem = item;
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}
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}
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else {
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this.activeItem = item;
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}
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},
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onItemClick(event, item, navigate) {
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if (this.disabled(item)) {
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event.preventDefault();
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return;
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}
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if (item.command) {
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item.command({
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originalEvent: event,
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item: item
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});
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}
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if (item.items) {
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if (this.activeItem && item === this.activeItem)
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this.activeItem = null;
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else
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this.activeItem = item;
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}
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if (!item.items) {
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this.onLeafClick();
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}
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if (item.to && navigate) {
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navigate(event);
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}
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},
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onLeafClick() {
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this.activeItem = null;
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this.$emit('leaf-click');
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},
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onItemKeyDown(event, item) {
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let listItem = event.currentTarget.parentElement;
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switch(event.which) {
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//down
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case 40:
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if (this.root) {
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if (item.items) {
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this.expandSubmenu(item, listItem);
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}
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}
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else {
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this.navigateToNextItem(listItem);
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}
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event.preventDefault();
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break;
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//up
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case 38:
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if (!this.root) {
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this.navigateToPrevItem(listItem);
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}
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event.preventDefault();
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break;
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//right
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case 39:
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if (this.root) {
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var nextItem = this.findNextItem(listItem);
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if (nextItem) {
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nextItem.children[0].focus();
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}
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}
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else {
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if (item.items) {
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this.expandSubmenu(item, listItem);
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}
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}
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event.preventDefault();
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break;
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//left
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case 37:
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if (this.root) {
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this.navigateToPrevItem(listItem);
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}
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event.preventDefault();
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break;
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default:
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break;
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}
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this.$emit('keydown-item', {
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originalEvent: event,
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element: listItem
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});
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},
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onChildItemKeyDown(event) {
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if (this.root) {
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//up
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if (event.originalEvent.which === 38 && event.element.previousElementSibling == null) {
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this.collapseMenu(event.element);
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}
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}
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else {
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//left
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if (event.originalEvent.which === 37) {
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this.collapseMenu(event.element);
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}
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}
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},
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findNextItem(item) {
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let nextItem = item.nextElementSibling;
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if (nextItem)
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return DomHandler.hasClass(nextItem, 'p-disabled') || !DomHandler.hasClass(nextItem, 'p-menuitem') ? this.findNextItem(nextItem) : nextItem;
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else
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return null;
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},
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findPrevItem(item) {
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let prevItem = item.previousElementSibling;
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if (prevItem)
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return DomHandler.hasClass(prevItem, 'p-disabled') || !DomHandler.hasClass(prevItem, 'p-menuitem') ? this.findPrevItem(prevItem) : prevItem;
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else
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return null;
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},
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expandSubmenu(item, listItem) {
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this.activeItem = item;
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setTimeout(() => {
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listItem.children[1].children[0].children[0].focus();
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}, 50);
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},
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collapseMenu(listItem) {
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this.activeItem = null;
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listItem.parentElement.previousElementSibling.focus();
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},
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navigateToNextItem(listItem) {
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var nextItem = this.findNextItem(listItem);
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if (nextItem) {
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nextItem.children[0].focus();
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}
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},
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navigateToPrevItem(listItem) {
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var prevItem = this.findPrevItem(listItem);
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if (prevItem) {
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prevItem.children[0].focus();
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}
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},
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getItemClass(item) {
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return [
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'p-menuitem', item.class, {
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'p-menuitem-active': this.activeItem === item
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}
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]
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},
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linkClass(item, routerProps) {
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return ['p-menuitem-link', {
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'p-disabled': this.disabled(item),
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'router-link-active': routerProps && routerProps.isActive,
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'router-link-active-exact': this.exact && routerProps && routerProps.isExactActive
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}];
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},
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bindDocumentClickListener() {
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if (!this.documentClickListener) {
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this.documentClickListener = (event) => {
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if (this.$el && !this.$el.contains(event.target)) {
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this.activeItem = null;
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this.unbindDocumentClickListener();
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}
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};
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document.addEventListener('click', this.documentClickListener);
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}
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},
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unbindDocumentClickListener() {
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if (this.documentClickListener) {
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document.removeEventListener('click', this.documentClickListener);
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this.documentClickListener = null;
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}
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},
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getSubmenuIcon() {
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return [
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'p-submenu-icon pi', {'pi-angle-right': !this.root, 'pi-angle-down': this.root}
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];
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},
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visible(item) {
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return (typeof item.visible === 'function' ? item.visible() : item.visible !== false);
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},
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disabled(item) {
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return (typeof item.disabled === 'function' ? item.disabled() : item.disabled);
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},
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label(item) {
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return (typeof item.label === 'function' ? item.label() : item.label);
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}
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},
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computed: {
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containerClass() {
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return {'p-submenu-list': !this.root, 'p-menubar-root-list': this.root};
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}
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},
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directives: {
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'ripple': Ripple
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}
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}
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</script>
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