115 lines
3.7 KiB
Vue
115 lines
3.7 KiB
Vue
<template>
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<view>
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<view class="l-tabbar" :class="tabBarClass" :style="[styles]">
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<slot></slot>
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</view>
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<view v-if="fixed && placeholder" :style="{height: rootHeight + 'px'}"></view>
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</view>
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</template>
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<script lang="ts">
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// @ts-nocheck
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/**
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* Tabbar 底部导航栏组件
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* @description 用于实现应用底部导航功能,支持多种样式风格和交互效果
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* <br>插件类型:LTabbarComponentPublicInstance
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* @tutorial https://ext.dcloud.net.cn/plugin?name=lime-tabbar
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*
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* @property {boolean} bordered 显示外边框(默认:true)
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* @property {boolean} fixed 固定在底部(默认:true)
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* @property {boolean} safeAreaInsetBottom 适配iPhoneX底部安全区(默认:true)
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* @property {'normal' | 'round'} shape 标签栏形状(默认:"normal")
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* @value normal
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* @value round
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* @property {boolean} split 显示分割线(默认:true)
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* @property {'normal' | 'tag'} theme 选项风格(默认:"normal")
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* @value normal
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* @value tag
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* @property {string} value 当前选中值(兼容旧版)
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* @property {string} defaultValue 默认选中值(非受控属性)
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* @property {string} modelValue 当前选中值(推荐使用v-model)
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* @property {boolean} placeholder 固定时生成占位元素(默认:false)
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* @property {string} activeColor 选中项颜色(默认:主题色)
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* @property {string} color 未选中项颜色(默认:"#7d7e80")
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* @property {string} lStyle 自定义样式(CSS字符串)
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* @property {string} activeBgColor 选中项背景色
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* @property {string} bgColor 背景颜色
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* @property {number} zIndex 层级(默认:100)
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* @property {string} iconSize 图标尺寸(支持CSS单位)
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* @property {string} fontSize 文字大小(支持CSS单位)
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* @event {Function} change 选项变化时触发(返回选中值)
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*/
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import { ref, defineComponent, computed, Ref, provide, toRefs, onMounted, getCurrentInstance } from '@/uni_modules/lime-shared/vue';
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import TabbarProps from './props'
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import { getRect } from '@/uni_modules/lime-shared/getRect'
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const name = `l-tabbar`
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export default defineComponent({
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// name,
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props: TabbarProps,
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emits: ['change', 'input', 'update:modelValue'],
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setup(props, { emit }) {
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const instance = getCurrentInstance()!.proxy!
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const innerValue = ref('0');
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const activeValue = computed({
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set(value: string) {
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innerValue.value = value
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emit('change', value)
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emit('update:modelValue', value)
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// #ifdef VUE2
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emit('input', value)
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// #endif
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},
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get():string {
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return props.value ?? props.modelValue ?? innerValue.value
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}
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});
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const defaultIndex : Ref<number> = ref(-1);
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const rootHeight = ref(0);
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const children = ref([])
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const tabBarClass = computed(() => [
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// `${name}`,
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{
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[`${name}--bordered`]: props.bordered,
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[`${name}--fixed`]: props.fixed,
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[`${name}--safe`]: props.safeAreaInsetBottom,
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},
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`${name}--${props.shape}`,
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]);
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const styles = computed(()=>{
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const style:Record<string, string> = {};
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if(props.zIndex) {
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style['z-index'] = props.zIndex!
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}
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if(props.bgColor) {
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style['background'] = props.bgColor!
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}
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return style
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})
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const updateChild = (currentValue: number | string) => {
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activeValue.value = currentValue;
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};
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onMounted(() => {
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if(!(props.placeholder && props.fixed)) return;
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getRect(`.${name}`, instance).then(res => {
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rootHeight.value = res.height
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})
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})
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provide('tab-bar', {
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...toRefs(props),
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defaultIndex,
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activeValue,
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updateChild,
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children
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});
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return {
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rootHeight,
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styles,
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tabBarClass
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}
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}
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})
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</script>
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<style lang="scss">
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@import './index-u';
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</style> |