primevue-mirror/components/lib/tabmenu/TabMenu.vue

325 lines
10 KiB
Vue
Executable File

<template>
<div class="p-tabmenu p-component" v-bind="ptm('root')">
<ul ref="nav" class="p-tabmenu-nav p-reset" role="menubar" :aria-labelledby="ariaLabelledby" :aria-label="ariaLabel" v-bind="ptm('menu')">
<template v-for="(item, i) of model" :key="label(item) + '_' + i.toString()">
<router-link v-if="item.to && !disabled(item)" v-slot="{ navigate, href, isActive, isExactActive }" :to="item.to" custom>
<li v-if="visible(item)" ref="tab" :class="getRouteItemClass(item, isActive, isExactActive)" :style="item.style" role="presentation" v-bind="ptm('menuitem')">
<template v-if="!$slots.item">
<a
ref="tabLink"
v-ripple
role="menuitem"
:href="href"
class="p-menuitem-link"
:aria-label="label(item)"
:aria-disabled="disabled(item)"
:tabindex="isExactActive ? '0' : '-1'"
@click="onItemClick($event, item, i, navigate)"
@keydown="onKeydownItem($event, item, i, navigate)"
v-bind="ptm('action')"
>
<component v-if="$slots.itemicon" :is="$slots.itemicon" :item="item" :class="getItemIcon(item)" />
<span v-else-if="item.icon" :class="getItemIcon(item)" v-bind="ptm('icon')" />
<span class="p-menuitem-text" v-bind="ptm('label')">{{ label(item) }}</span>
</a>
</template>
<component v-else :is="$slots.item" :item="item" :index="i"></component>
</li>
</router-link>
<li v-else-if="visible(item)" ref="tab" :class="getItemClass(item, i)" role="presentation" @click="onItemClick($event, item, i)" @keydown="onKeydownItem($event, item, i)" v-bind="ptm('menuitem')">
<template v-if="!$slots.item">
<a ref="tabLink" v-ripple role="menuitem" :href="item.url" class="p-menuitem-link" :target="item.target" :aria-label="label(item)" :aria-disabled="disabled(item)" :tabindex="setTabIndex(i)" v-bind="ptm('action')">
<component v-if="$slots.itemicon" :is="$slots.itemicon" :item="item" :class="getItemIcon(item)" />
<span v-else-if="item.icon" :class="getItemIcon(item)" v-bind="ptm('icon')" />
<span class="p-menuitem-text" v-bind="ptm('label')">{{ label(item) }}</span>
</a>
</template>
<component v-else :is="$slots.item" :item="item" :index="i"></component>
</li>
</template>
<li ref="inkbar" role="none" class="p-tabmenu-ink-bar" v-bind="ptm('inkbar')"></li>
</ul>
</div>
</template>
<script>
import BaseComponent from 'primevue/basecomponent';
import Ripple from 'primevue/ripple';
import { DomHandler } from 'primevue/utils';
export default {
name: 'TabMenu',
extends: BaseComponent,
emits: ['update:activeIndex', 'tab-change'],
props: {
model: {
type: Array,
default: null
},
exact: {
type: Boolean,
default: true
},
activeIndex: {
type: Number,
default: 0
},
'aria-labelledby': {
type: String,
default: null
},
'aria-label': {
type: String,
default: null
}
},
timeout: null,
data() {
return {
d_activeIndex: this.activeIndex
};
},
watch: {
$route() {
this.timeout = setTimeout(() => this.updateInkBar(), 50);
},
activeIndex(newValue) {
this.d_activeIndex = newValue;
}
},
mounted() {
this.updateInkBar();
},
updated() {
this.updateInkBar();
},
beforeUnmount() {
clearTimeout(this.timeout);
},
methods: {
onItemClick(event, item, index, navigate) {
if (this.disabled(item)) {
event.preventDefault();
return;
}
if (item.command) {
item.command({
originalEvent: event,
item: item
});
}
if (item.to && navigate) {
navigate(event);
}
if (index !== this.d_activeIndex) {
this.d_activeIndex = index;
this.$emit('update:activeIndex', this.d_activeIndex);
}
this.$emit('tab-change', {
originalEvent: event,
index: index
});
},
onKeydownItem(event, item, index) {
let i = index;
let foundElement = {};
const tabLinkRef = this.$refs.tabLink;
switch (event.code) {
case 'ArrowRight': {
foundElement = this.findNextItem(this.$refs.tab, i);
i = foundElement.i;
break;
}
case 'ArrowLeft': {
foundElement = this.findPrevItem(this.$refs.tab, i);
i = foundElement.i;
break;
}
case 'End': {
foundElement = this.findPrevItem(this.$refs.tab, this.model.length);
i = foundElement.i;
event.preventDefault();
break;
}
case 'Home': {
foundElement = this.findNextItem(this.$refs.tab, -1);
i = foundElement.i;
event.preventDefault();
break;
}
case 'Space':
case 'Enter': {
if (event.currentTarget) {
event.currentTarget.click();
}
event.preventDefault();
break;
}
case 'Tab': {
this.setDefaultTabIndexes(tabLinkRef);
break;
}
default:
break;
}
if (tabLinkRef[i] && tabLinkRef[index]) {
tabLinkRef[index].tabIndex = '-1';
tabLinkRef[i].tabIndex = '0';
tabLinkRef[i].focus();
}
},
findNextItem(items, index) {
let i = index + 1;
if (i >= items.length) {
return { nextItem: items[items.length], i: items.length };
}
let nextItem = items[i];
if (nextItem) return DomHandler.hasClass(nextItem, 'p-disabled') ? this.findNextItem(items, i) : { nextItem, i };
else return null;
},
findPrevItem(items, index) {
let i = index - 1;
if (i < 0) {
return { nextItem: items[0], i: 0 };
}
let prevItem = items[i];
if (prevItem) return DomHandler.hasClass(prevItem, 'p-disabled') ? this.findPrevItem(items, i) : { prevItem, i };
else return null;
},
getItemClass(item, index) {
return [
'p-tabmenuitem',
item.class,
{
'p-highlight': this.d_activeIndex === index,
'p-disabled': this.disabled(item)
}
];
},
getRouteItemClass(item, isActive, isExactActive) {
return [
'p-tabmenuitem',
item.class,
{
'p-highlight': this.exact ? isExactActive : isActive,
'p-disabled': this.disabled(item)
}
];
},
getItemIcon(item) {
return ['p-menuitem-icon', item.icon];
},
visible(item) {
return typeof item.visible === 'function' ? item.visible() : item.visible !== false;
},
disabled(item) {
return typeof item.disabled === 'function' ? item.disabled() : item.disabled;
},
label(item) {
return typeof item.label === 'function' ? item.label() : item.label;
},
setDefaultTabIndexes(tabLinkRef) {
setTimeout(() => {
tabLinkRef.forEach((item) => {
item.tabIndex = DomHandler.hasClass(item.parentElement, 'p-highlight') ? '0' : '-1';
});
}, 300);
},
setTabIndex(index) {
return this.d_activeIndex === index ? '0' : '-1';
},
updateInkBar() {
let tabs = this.$refs.nav.children;
let inkHighlighted = false;
for (let i = 0; i < tabs.length; i++) {
let tab = tabs[i];
if (DomHandler.hasClass(tab, 'p-highlight')) {
this.$refs.inkbar.style.width = DomHandler.getWidth(tab) + 'px';
this.$refs.inkbar.style.left = DomHandler.getOffset(tab).left - DomHandler.getOffset(this.$refs.nav).left + 'px';
inkHighlighted = true;
}
}
if (!inkHighlighted) {
this.$refs.inkbar.style.width = '0px';
this.$refs.inkbar.style.left = '0px';
}
}
},
directives: {
ripple: Ripple
}
};
</script>
<style>
.p-tabmenu {
overflow-x: auto;
}
.p-tabmenu-nav {
display: flex;
margin: 0;
padding: 0;
list-style-type: none;
flex-wrap: nowrap;
}
.p-tabmenu-nav a {
cursor: pointer;
user-select: none;
display: flex;
align-items: center;
position: relative;
text-decoration: none;
text-decoration: none;
overflow: hidden;
}
.p-tabmenu-nav a:focus {
z-index: 1;
}
.p-tabmenu-nav .p-menuitem-text {
line-height: 1;
}
.p-tabmenu-ink-bar {
display: none;
z-index: 1;
}
.p-tabmenu::-webkit-scrollbar {
display: none;
}
</style>