<template>
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<view
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ref="container"
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class="nut-tabs"
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:class="[direction, { fullHeight, noContent: !showPaneContent, flexTitle }]"
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>
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<div :class="['pro-tabs__titles_wrapper', { isTransparent }]">
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<scroll-view
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:id="`nut-tabs__titles_${name}`"
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:scroll-x="getScrollX"
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:scroll-y="getScrollY"
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:scroll-with-animation="true"
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:scroll-left="scrollLeft"
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:scroll-top="scrollTop"
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:enable-flex="true"
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class="nut-tabs__titles tabs-scrollview"
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:class="{
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[type]: type,
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scrollable: titleScroll,
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'scroll-vertical': getScrollY,
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[size]: size,
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}"
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:style="tabsNavStyle"
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enhanced
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:show-scrollbar="false"
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@scroll="onScroll"
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>
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<view class="nut-tabs__list">
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<slot v-if="$slots.titles" name="titles"></slot>
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<template v-else>
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<view
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v-for="(item, index) in titles"
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:key="item.paneKey"
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class="nut-tabs__titles-item taro"
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:style="titleStyle"
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:class="{ active: item.paneKey == modelValue, disabled: item.disabled }"
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@click="tabMethods.tabChange(item, index)"
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>
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<view
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v-if="type == 'line'"
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class="nut-tabs__titles-item__line"
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:style="tabsActiveStyle"
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></view>
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<view
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v-if="type == 'smile'"
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class="nut-tabs__titles-item__smile"
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:style="tabsActiveStyle"
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>
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<JoySmile :color="color" />
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</view>
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<nut-badge
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right="-12"
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top="4"
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:value="item.badgeValue"
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:max="99"
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:hidden="!item.badgeValue"
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color="#FC0B0B"
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>
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<view class="nut-tabs__titles-item__text" :class="{ ellipsis: ellipsis }"
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>{{ item.title }}
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</view>
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</nut-badge>
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<view class="nut-tabs__sub-titles-item__text" :class="{ ellipsis: ellipsis }"
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>{{ item.subTitle }}
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</view>
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</view>
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<view
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v-if="canShowLabel"
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class="nut-tabs__titles-item nut-tabs__titles-placeholder"
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></view>
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</template>
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</view>
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</scroll-view>
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<slot name="right"></slot>
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</div>
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<view
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:id="'tabsContentRef-' + refRandomId"
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ref="tabsContentRef"
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class="nut-tabs__content"
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:style="contentStyle"
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@touchstart="touchMethods.onTouchStart"
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@touchmove="touchMethods.onTouchMove"
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@touchend="touchMethods.onTouchEnd"
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@touchcancel="touchMethods.onTouchEnd"
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v-show="showPaneContent"
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>
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<slot name="default"></slot>
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</view>
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</view>
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</template>
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<script setup lang="ts">
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import { JoySmile } from '@nutui/icons-vue-taro';
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import { tabsProps, Title, TypeOfFun, RectItem, raf, pxCheck, useTabContentTouch } from './tabs';
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import Taro from '@tarojs/taro';
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import {
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CSSProperties,
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useSlots,
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computed,
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ref,
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onMounted,
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provide,
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VNode,
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Ref,
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nextTick,
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watch,
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onActivated,
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} from 'vue';
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import { useTaroRect, useScrollDistance } from 'senin-mini/hooks';
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defineOptions({
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name: 'ProTabs',
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});
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const props = defineProps(tabsProps);
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const emit = defineEmits<{
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(e: 'update:modelValue', value: string | number): void;
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(e: 'click', item: Title): void;
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(e: 'change', item: Title): void;
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}>();
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const slots = useSlots();
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const container = ref(null);
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provide('tabsOpiton', {
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activeKey: computed(() => props.modelValue || '0'),
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autoHeight: computed(() => props.autoHeight),
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animatedTime: computed(() => props.animatedTime),
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});
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const titles: Ref<Title[]> = ref([]);
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const renderTitles = (vnodes: VNode[]) => {
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vnodes.forEach((vnode: VNode, index: number) => {
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let type = vnode?.type;
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type = (type as any).name || type;
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if (type === 'nut-tab-pane' || type === 'ProTabPane') {
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let title = new Title();
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if (vnode.props?.title || vnode.props?.['pane-key'] || vnode.props?.['paneKey']) {
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let paneKeyType = TypeOfFun(vnode.props?.['pane-key']);
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let paneIndex =
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paneKeyType === 'number' || paneKeyType === 'string'
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? String(vnode.props?.['pane-key'])
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: null;
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let camelPaneKeyType = TypeOfFun(vnode.props?.['paneKey']);
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let camelPaneIndex =
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camelPaneKeyType === 'number' || camelPaneKeyType === 'string'
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? String(vnode.props?.['paneKey'])
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: null;
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title.title = vnode.props?.title;
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title.subTitle = vnode.props?.subTitle;
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title.badgeValue = vnode.props?.badgeValue;
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title.paneKey = paneIndex || camelPaneIndex || String(index);
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title.disabled = vnode.props?.disabled;
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} else {
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// title.titleSlot = vnode.children?.title() as VNode[];
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}
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titles.value.push(title);
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} else {
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if (vnode.children === ' ') {
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return;
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}
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renderTitles(vnode.children as VNode[]);
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}
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});
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};
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const currentIndex = ref((props.modelValue as number) || 0);
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const findTabsIndex = (value: string | number) => {
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let index = titles.value.findIndex((item) => item.paneKey === value);
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if (titles.value.length === 0) {
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// console.warn('[NutUI] <Tabs> 当前未找到 TabPane 组件元素 , 请检查 .');
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} else if (index === -1) {
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// console.warn('[NutUI] <Tabs> 请检查 v-model 值是否为 paneKey ,如 paneKey 未设置，请采用下标控制 .');
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} else {
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currentIndex.value = index;
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}
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};
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const getScrollX = computed(() => {
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return props.titleScroll && props.direction === 'horizontal';
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});
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const getScrollY = computed(() => {
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return props.titleScroll && props.direction === 'vertical';
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});
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const titleRef = ref([]) as Ref<HTMLElement[]>;
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// const scrollLeft = ref(0);
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const scrollTop = ref(0);
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const scrollWithAnimation = ref(false);
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const getRect = (selector: string) => {
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return new Promise((resolve) => {
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Taro.createSelectorQuery()
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.select(selector)
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.boundingClientRect()
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.exec((rect = []) => {
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resolve(rect[0]);
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});
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});
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};
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const getAllRect = (selector: string) => {
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return new Promise((resolve) => {
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Taro.createSelectorQuery()
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.selectAll(selector)
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.boundingClientRect()
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.exec((rect = []) => resolve(rect[0]));
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});
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};
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const navRectRef = ref();
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const titleRectRef = ref<RectItem[]>([]);
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const canShowLabel = ref(false);
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const scrollIntoView = () => {
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if (!props.name) return;
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raf(() => {
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Promise.all([
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getRect(`#nut-tabs__titles_${props.name}`),
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getAllRect(`#nut-tabs__titles_${props.name} .nut-tabs__titles-item`),
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]).then(([navRect, titleRects]: any) => {
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navRectRef.value = navRect;
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titleRectRef.value = titleRects;
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if (navRectRef.value) {
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if (props.direction === 'vertical') {
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const titlesTotalHeight = titleRects.reduce(
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(prev: number, curr: RectItem) => prev + curr.height,
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0
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);
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if (titlesTotalHeight > navRectRef.value.height) {
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canShowLabel.value = true;
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} else {
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canShowLabel.value = false;
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}
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} else {
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const titlesTotalWidth = titleRects.reduce(
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(prev: number, curr: RectItem) => prev + curr.width,
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0
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);
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if (titlesTotalWidth > navRectRef.value.width) {
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canShowLabel.value = true;
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} else {
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canShowLabel.value = false;
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}
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}
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}
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const titleRect: RectItem = titleRectRef.value[currentIndex.value];
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let to = 0;
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if (props.direction === 'vertical') {
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const DEFAULT_PADDING = 11;
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const top = titleRects
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.slice(0, currentIndex.value)
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.reduce((prev: number, curr: RectItem) => prev + curr.height + 0, DEFAULT_PADDING);
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to = top - (navRectRef.value.height - titleRect.height) / 2;
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} else {
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const DEFAULT_PADDING = 31;
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const left = titleRects
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.slice(0, currentIndex.value)
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.reduce((prev: number, curr: RectItem) => prev + curr.width + 20, DEFAULT_PADDING);
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to = left - (navRectRef.value?.width ?? 0 - titleRect?.width ?? 0) / 2;
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}
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nextTick(() => {
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scrollWithAnimation.value = true;
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});
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scrollDirection(to, props.direction);
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});
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});
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};
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const {
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onScroll,
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scrollDistance: scrollLeft,
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setScrollDistance: setScrollLeft,
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} = useScrollDistance({ direction: 'horizontal' });
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const scrollDirection = (to: number, direction: 'horizontal' | 'vertical') => {
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let count = 0;
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const from = direction === 'horizontal' ? scrollLeft.value : scrollTop.value;
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const frames = 1;
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function animate() {
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if (direction === 'horizontal') {
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scrollLeft.value = Math.max(0.1, to);
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} else {
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scrollTop.value += (to - from) / frames;
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}
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if (++count < frames) {
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raf(animate);
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}
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}
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if (direction === 'horizontal') {
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setScrollLeft(Math.max(0.1, to));
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} else {
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animate();
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}
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};
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const init = (vnodes: VNode[] = slots.default?.()) => {
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titles.value = [];
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vnodes = vnodes?.filter((item) => typeof item.children !== 'string');
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if (vnodes && vnodes.length) {
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renderTitles(vnodes);
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}
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findTabsIndex(props.modelValue);
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setTimeout(() => {
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scrollIntoView();
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}, 500);
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};
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watch(
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() => slots.default?.(),
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(vnodes: VNode[]) => {
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init(vnodes);
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}
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);
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watch(
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() => props.modelValue,
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(value: string | number) => {
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findTabsIndex(value);
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setTimeout(() => {
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scrollIntoView();
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}, 500);
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}
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);
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onMounted(init);
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onActivated(init);
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const tabMethods = {
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isBegin: () => {
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return currentIndex.value === 0;
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},
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isEnd: () => {
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return currentIndex.value === titles.value.length - 1;
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},
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next: () => {
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currentIndex.value += 1;
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tabMethods.updateValue(titles.value[currentIndex.value]);
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},
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prev: () => {
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currentIndex.value -= 1;
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tabMethods.updateValue(titles.value[currentIndex.value]);
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},
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updateValue: (item: Title) => {
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emit('update:modelValue', item.paneKey);
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emit('change', item);
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},
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tabChange: (item: Title, index: number) => {
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emit('click', item);
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if (item.disabled || currentIndex.value === index) {
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return;
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}
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currentIndex.value = index;
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tabMethods.updateValue(item);
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},
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setTabItemRef: (el: HTMLElement, index: number) => {
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titleRef.value[index] = el;
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},
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};
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const { tabsContentRef, touchState, touchMethods } = useTabContentTouch(
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props,
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tabMethods,
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Taro,
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useTaroRect
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);
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const contentStyle = computed(() => {
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let offsetPercent = currentIndex.value * 100;
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if (touchState.moving) {
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offsetPercent += touchState.offset;
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}
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let style: CSSProperties = {
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transform:
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props.direction === 'horizontal'
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? `translate3d(-${offsetPercent}%, 0, 0)`
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: `translate3d( 0,-${offsetPercent}%, 0)`,
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transitionDuration: touchState.moving ? undefined : `${props.animatedTime}ms`,
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};
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if (props.animatedTime === 0) {
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style = {};
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}
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return style;
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});
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const tabsNavStyle = computed(() => {
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return {
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background: props.background,
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};
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});
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const tabsActiveStyle = computed(() => {
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return {
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color: props.type === 'smile' ? props.color : '',
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background: props.type === 'line' ? props.color : '',
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};
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});
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const titleStyle = computed(() => {
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if (!props.titleGutter) return {};
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const px = pxCheck(props.titleGutter);
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if (props.direction === 'vertical') {
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return { marginTop: px, marginBottom: px };
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}
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return { marginLeft: px, marginRight: px };
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});
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const refRandomId = Math.random().toString(36).slice(-8);
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</script>
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<style lang="scss">
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@import '@/styles/common.scss';
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.pro-tabs__titles_wrapper {
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display: flex;
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align-items: center;
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background-color: #fff;
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position: relative;
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z-index: 10;
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box-shadow: none;
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padding: 0 boleGetCssVar('size', 'body-padding-h');
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margin-bottom: 8px;
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&.isTransparent {
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background-color: transparent;
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margin-bottom: 0;
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}
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}
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.nut-tabs.noContent {
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box-shadow: none;
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position: relative;
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z-index: 9;
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}
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.flexTitle {
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box-shadow: none;
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position: relative;
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z-index: 9;
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|
.pro-tabs__titles_wrapper {
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padding: 0;
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|
.nut-tabs__titles.tabs-scrollview .nut-tabs__list .nut-tabs__titles-item {
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flex: 1;
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margin: 0;
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min-width: 0;
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flex-shrink: 0;
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}
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}
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}
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.nut-tabs__titles.tabs-scrollview {
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background-color: transparent;
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flex: 1;
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min-width: 0;
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box-sizing: border-box;
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height: 104rpx;
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@include hiddenScrollBar;
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.nut-tabs__list {
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height: 104rpx;
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justify-content: flex-start;
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|
.nut-tabs__titles-item {
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flex: none;
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width: auto;
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margin-right: 78rpx;
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flex-direction: column;
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font-size: 30rpx;
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color: boleGetCssVar('text-color', 'regular');
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align-items: center;
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transition: all 0.3s ease;
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min-width: 0;
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.nut-tabs__sub-titles-item__text {
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font-size: 20rpx;
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color: boleGetCssVar('text-color', 'regular');
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}
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.nut-tabs__titles-item__text {
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font-size: 30rpx;
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color: boleGetCssVar('text-color', 'regular');
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line-height: 40rpx;
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}
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|
&.active {
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color: boleGetCssVar('color', 'primary');
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font-weight: normal;
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font-size: 30rpx;
|
|
.nut-tabs__sub-titles-item__text {
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color: boleGetCssVar('color', 'primary');
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}
|
|
.nut-tabs__titles-item__line {
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width: 100%;
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}
|
|
.nut-tabs__titles-item__text {
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color: boleGetCssVar('color', 'primary');
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}
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}
|
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&:last-child {
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margin-right: 0;
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}
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|
&:first-child {
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margin-left: 0 !important;
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}
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|
.nut-tabs__titles-item__line {
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// width: 100%;
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background: boleGetCssVar('color', 'primary');
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bottom: 20rpx;
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height: 4rpx;
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max-width: 40rpx;
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}
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}
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}
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}
|
|
.nut-tabs.fullHeight {
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height: 100%;
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display: flex;
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flex-direction: column;
|
|
.nut-tabs__content {
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flex: 1;
|
min-height: 0;
|
|
.nut-tab-pane {
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padding: 0;
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background-color: transparent;
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overflow: hidden;
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display: flex;
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flex-direction: column;
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}
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}
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}
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</style>
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