443 lines
14 KiB
Vue
443 lines
14 KiB
Vue
<template>
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<Portal :appendTo="appendTo" :disabled="!popup">
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<transition name="p-connected-overlay" @enter="onEnter" @leave="onLeave" @after-leave="onAfterLeave">
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<div v-if="popup ? overlayVisible : true" :ref="containerRef" :id="id" :class="containerClass" v-bind="$attrs" @click="onOverlayClick">
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<div v-if="$slots.start" class="p-menu-start">
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<slot name="start"></slot>
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</div>
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<ul
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:ref="listRef"
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:id="id + '_list'"
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class="p-menu-list p-reset"
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role="menu"
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:tabindex="tabindex"
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:aria-activedescendant="focused ? focusedOptionId : undefined"
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:aria-label="ariaLabel"
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:aria-labelledby="ariaLabelledby"
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@focus="onListFocus"
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@blur="onListBlur"
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@keydown="onListKeyDown"
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>
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<template v-for="(item, i) of model" :key="label(item) + i.toString()">
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<template v-if="item.items && visible(item) && !item.separator">
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<li v-if="item.items" :id="id + '_' + i" class="p-submenu-header" role="none">
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<slot name="item" :item="item">{{ label(item) }}</slot>
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</li>
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<template v-for="(child, j) of item.items" :key="child.label + i + '_' + j">
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<PVMenuitem v-if="visible(child) && !child.separator" :id="id + '_' + i + '_' + j" :item="child" :template="$slots.item" :exact="exact" :focusedOptionId="focusedOptionId" @item-click="itemClick" />
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<li v-else-if="visible(child) && child.separator" :key="'separator' + i + j" :class="separatorClass(item)" :style="child.style" role="separator"></li>
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</template>
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</template>
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<li v-else-if="visible(item) && item.separator" :key="'separator' + i.toString()" :class="separatorClass(item)" :style="item.style" role="separator"></li>
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<PVMenuitem v-else :key="label(item) + i.toString()" :id="id + '_' + i" :item="item" :template="$slots.item" :exact="exact" :focusedOptionId="focusedOptionId" @item-click="itemClick" />
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</template>
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</ul>
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<div v-if="$slots.end" class="p-menu-end">
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<slot name="end"></slot>
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</div>
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</div>
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</transition>
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</Portal>
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</template>
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<script>
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import OverlayEventBus from 'primevue/overlayeventbus';
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import Portal from 'primevue/portal';
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import { ConnectedOverlayScrollHandler, DomHandler, UniqueComponentId, ZIndexUtils } from 'primevue/utils';
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import Menuitem from './Menuitem.vue';
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export default {
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name: 'Menu',
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inheritAttrs: false,
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emits: ['show', 'hide', 'focus', 'blur'],
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props: {
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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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model: {
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type: Array,
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default: null
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},
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appendTo: {
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type: String,
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default: 'body'
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},
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autoZIndex: {
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type: Boolean,
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default: true
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},
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baseZIndex: {
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type: Number,
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default: 0
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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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tabindex: {
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type: Number,
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default: 0
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},
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'aria-label': {
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type: String,
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default: null
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},
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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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id: this.$attrs.id,
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overlayVisible: false,
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focused: false,
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focusedOptionIndex: -1,
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selectedOptionIndex: -1
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};
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},
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watch: {
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'$attrs.id': function (newValue) {
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this.id = newValue || UniqueComponentId();
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}
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},
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target: null,
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outsideClickListener: null,
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scrollHandler: null,
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resizeListener: null,
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container: null,
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list: null,
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mounted() {
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this.id = this.id || UniqueComponentId();
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if (!this.popup) {
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this.bindResizeListener();
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this.bindOutsideClickListener();
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}
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},
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beforeUnmount() {
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this.unbindResizeListener();
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this.unbindOutsideClickListener();
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if (this.scrollHandler) {
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this.scrollHandler.destroy();
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this.scrollHandler = null;
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}
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this.target = null;
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if (this.container && this.autoZIndex) {
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ZIndexUtils.clear(this.container);
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}
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this.container = null;
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},
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methods: {
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itemClick(event) {
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const item = event.item;
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if (this.disabled(item)) {
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return;
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}
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if (item.command) {
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item.command(event);
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}
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if (item.to && event.navigate) {
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event.navigate(event.originalEvent);
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}
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if (this.overlayVisible) this.hide();
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if (!this.popup && this.focusedOptionIndex !== event.id) {
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this.focusedOptionIndex = event.id;
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}
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},
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onListFocus(event) {
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this.focused = true;
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if (!this.popup) {
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if (this.selectedOptionIndex !== -1) {
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this.changeFocusedOptionIndex(this.selectedOptionIndex);
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this.selectedOptionIndex = -1;
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} else this.changeFocusedOptionIndex(0);
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}
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this.$emit('focus', event);
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},
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onListBlur(event) {
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this.focused = false;
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this.focusedOptionIndex = -1;
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this.$emit('blur', event);
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},
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onListKeyDown(event) {
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switch (event.code) {
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case 'ArrowDown':
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this.onArrowDownKey(event);
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break;
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case 'ArrowUp':
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this.onArrowUpKey(event);
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break;
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case 'Home':
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this.onHomeKey(event);
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break;
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case 'End':
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this.onEndKey(event);
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break;
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case 'Enter':
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this.onEnterKey(event);
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break;
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case 'Space':
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this.onSpaceKey(event);
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break;
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case 'Escape':
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if (this.popup) {
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DomHandler.focus(this.target);
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this.hide();
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}
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case 'Tab':
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this.overlayVisible && this.hide();
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break;
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default:
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break;
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}
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},
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onArrowDownKey(event) {
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const optionIndex = this.findNextOptionIndex(this.focusedOptionIndex);
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this.changeFocusedOptionIndex(optionIndex);
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event.preventDefault();
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},
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onArrowUpKey(event) {
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if (event.altKey && this.popup) {
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DomHandler.focus(this.target);
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this.hide();
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event.preventDefault();
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} else {
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const optionIndex = this.findPrevOptionIndex(this.focusedOptionIndex);
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this.changeFocusedOptionIndex(optionIndex);
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event.preventDefault();
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}
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},
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onHomeKey(event) {
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this.changeFocusedOptionIndex(0);
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event.preventDefault();
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},
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onEndKey(event) {
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this.changeFocusedOptionIndex(DomHandler.find(this.container, 'li.p-menuitem:not(.p-disabled)').length - 1);
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event.preventDefault();
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},
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onEnterKey(event) {
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const element = DomHandler.findSingle(this.list, `li[id="${`${this.focusedOptionIndex}`}"]`);
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const anchorElement = element && DomHandler.findSingle(element, '.p-menuitem-link');
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this.popup && DomHandler.focus(this.target);
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anchorElement ? anchorElement.click() : element && element.click();
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event.preventDefault();
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},
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onSpaceKey(event) {
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this.onEnterKey(event);
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},
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findNextOptionIndex(index) {
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const links = DomHandler.find(this.container, 'li.p-menuitem:not(.p-disabled)');
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const matchedOptionIndex = [...links].findIndex((link) => link.id === index);
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return matchedOptionIndex > -1 ? matchedOptionIndex + 1 : 0;
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},
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findPrevOptionIndex(index) {
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const links = DomHandler.find(this.container, 'li.p-menuitem:not(.p-disabled)');
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const matchedOptionIndex = [...links].findIndex((link) => link.id === index);
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return matchedOptionIndex > -1 ? matchedOptionIndex - 1 : 0;
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},
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changeFocusedOptionIndex(index) {
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const links = DomHandler.find(this.container, 'li.p-menuitem:not(.p-disabled)');
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let order = index >= links.length ? links.length - 1 : index < 0 ? 0 : index;
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order > -1 && (this.focusedOptionIndex = links[order].getAttribute('id'));
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},
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toggle(event) {
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if (this.overlayVisible) this.hide();
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else this.show(event);
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},
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show(event) {
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this.overlayVisible = true;
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this.target = event.currentTarget;
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},
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hide() {
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this.overlayVisible = false;
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this.target = null;
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},
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onEnter(el) {
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this.alignOverlay();
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this.bindOutsideClickListener();
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this.bindResizeListener();
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this.bindScrollListener();
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if (this.autoZIndex) {
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ZIndexUtils.set('menu', el, this.baseZIndex + this.$primevue.config.zIndex.menu);
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}
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if (this.popup) {
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DomHandler.focus(this.list);
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this.changeFocusedOptionIndex(0);
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}
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this.$emit('show');
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},
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onLeave() {
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this.unbindOutsideClickListener();
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this.unbindResizeListener();
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this.unbindScrollListener();
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this.$emit('hide');
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},
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onAfterLeave(el) {
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if (this.autoZIndex) {
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ZIndexUtils.clear(el);
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}
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},
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alignOverlay() {
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DomHandler.absolutePosition(this.container, this.target);
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this.container.style.minWidth = DomHandler.getOuterWidth(this.target) + 'px';
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},
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bindOutsideClickListener() {
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if (!this.outsideClickListener) {
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this.outsideClickListener = (event) => {
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const isOutsideContainer = this.container && !this.container.contains(event.target);
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const isOutsideTarget = !(this.target && (this.target === event.target || this.target.contains(event.target)));
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if (this.overlayVisible && isOutsideContainer && isOutsideTarget) {
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this.hide();
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} else if (!this.popup && isOutsideContainer && isOutsideTarget) {
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this.focusedOptionIndex = -1;
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}
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};
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document.addEventListener('click', this.outsideClickListener);
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}
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},
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unbindOutsideClickListener() {
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if (this.outsideClickListener) {
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document.removeEventListener('click', this.outsideClickListener);
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this.outsideClickListener = null;
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}
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},
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bindScrollListener() {
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if (!this.scrollHandler) {
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this.scrollHandler = new ConnectedOverlayScrollHandler(this.target, () => {
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if (this.overlayVisible) {
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this.hide();
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}
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});
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}
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this.scrollHandler.bindScrollListener();
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},
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unbindScrollListener() {
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if (this.scrollHandler) {
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this.scrollHandler.unbindScrollListener();
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}
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},
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bindResizeListener() {
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if (!this.resizeListener) {
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this.resizeListener = () => {
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if (this.overlayVisible && !DomHandler.isTouchDevice()) {
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this.hide();
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}
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};
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window.addEventListener('resize', this.resizeListener);
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}
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},
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unbindResizeListener() {
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if (this.resizeListener) {
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window.removeEventListener('resize', this.resizeListener);
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this.resizeListener = null;
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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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separatorClass(item) {
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return ['p-menuitem-separator', item.class];
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},
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onOverlayClick(event) {
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OverlayEventBus.emit('overlay-click', {
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originalEvent: event,
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target: this.target
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});
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},
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containerRef(el) {
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this.container = el;
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},
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listRef(el) {
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this.list = el;
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}
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},
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computed: {
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containerClass() {
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return [
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'p-menu p-component',
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{
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'p-menu-overlay': this.popup,
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'p-input-filled': this.$primevue.config.inputStyle === 'filled',
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'p-ripple-disabled': this.$primevue.config.ripple === false
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}
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];
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},
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focusedOptionId() {
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return this.focusedOptionIndex !== -1 ? this.focusedOptionIndex : null;
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}
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},
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components: {
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PVMenuitem: Menuitem,
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Portal: Portal
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}
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};
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</script>
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<style>
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.p-menu-overlay {
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position: absolute;
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top: 0;
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left: 0;
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}
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.p-menu ul {
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margin: 0;
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padding: 0;
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list-style: none;
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}
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.p-menu .p-menuitem-link {
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cursor: pointer;
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display: flex;
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align-items: center;
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text-decoration: none;
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overflow: hidden;
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position: relative;
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}
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.p-menu .p-menuitem-text {
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line-height: 1;
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}
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</style>
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