390 lines
10 KiB
Vue
390 lines
10 KiB
Vue
<template>
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<view
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class="u-subsection"
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ref="u-subsection"
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:class="[`u-subsection--${mode}`, `u-subsection--${mode}__${shape}`]"
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:style="[$u.addStyle(customStyle), wrapperStyle]"
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>
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<view
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class="u-subsection__bar"
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ref="u-subsection__bar"
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:style="[barStyle]"
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:class="[
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mode === 'button' && `u-subsection--button__${shape}__bar`,
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innerCurrent === 0 && mode === 'subsection' && `u-subsection__bar--first--${shape}`,
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innerCurrent > 0 && innerCurrent < list.length - 1 && mode === 'subsection' && `u-subsection__bar--center`,
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innerCurrent === list.length - 1 && mode === 'subsection' && `u-subsection__bar--last--${shape}`
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]"
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></view>
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<view
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class="u-subsection__item"
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:class="[
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`u-subsection__item--${index}`,
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index < list.length - 1 && 'u-subsection__item--no-border-right',
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index === 0 && `u-subsection__item--first--${shape}`,
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index === list.length - 1 && `u-subsection__item--last--${shape}`
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]"
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:ref="`u-subsection__item--${index}`"
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:style="[itemStyle(item)]"
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@tap="clickHandler(index, item)"
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v-for="(item, index) in list"
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:key="index"
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>
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<text class="u-subsection__item__text" :style="[textStyle(index,item)]">{{ getText(item) }}</text>
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</view>
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</view>
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</template>
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<script>
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// #ifdef APP-NVUE
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const dom = uni.requireNativePlugin('dom');
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const animation = uni.requireNativePlugin('animation');
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// #endif
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import props from './props.js';
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import mpMixin from '../../libs/mixin/mpMixin';
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import mixin from '../../libs/mixin/mixin';
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/**
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* Subsection 分段器
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* @description 该分段器一般用于用户从几个选项中选择某一个的场景
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* @tutorial https://uveiw.bdxmz.cn/components/subsection.html
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* @property {Array} list tab的数据
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* @property {String ｜ Number} current 当前活动的tab的index（默认 0 ）
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* @property {String} activeColor 激活时的颜色（默认 '#3c9cff' ）
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* @property {String} inactiveColor 未激活时的颜色（默认 '#303133' ）
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* @property {String} mode 模式选择，mode=button为按钮形式，mode=subsection时为分段模式（默认 'button' ）
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* @property {String ｜ Number} fontSize 字体大小，单位px（默认 12 ）
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* @property {Boolean} bold 激活选项的字体是否加粗（默认 true ）
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* @property {String} bgColor 组件背景颜色，mode为button时有效（默认 '#eeeeef' ）
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* @property {Object} customStyle 定义需要用到的外部样式
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* @property {String} keyName 从`list`元素对象中读取的键名（默认 'name' ）
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* @property {String} barColor bar背景颜色
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* @property {String ｜ Number} height 高度
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* @property {Boolean} disabled 是否禁用（默认 false ）
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* @property {String} disabledBgColor 禁用时的背景颜色（默认 '#e5e5e5' ）
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* @property {String} disabledColor 禁用时的文字颜色
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*
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*
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* @event {Function} change 分段器选项发生改变时触发 回调 index：选项的index索引值，从0开始
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* @example <u-subsection :list="list" :current="curNow" @change="sectionChange"></u-subsection>
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*/
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export default {
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name: 'u-subsection',
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mixins: [mpMixin, mixin, props],
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data() {
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return {
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// 组件尺寸
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itemRect: {
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width: 0,
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height: 0
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},
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innerCurrent: ''
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};
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},
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watch: {
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list(newValue, oldValue) {
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this.init();
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},
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current: {
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immediate: true,
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handler(n) {
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if (n !== this.innerCurrent) {
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this.innerCurrent = n;
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}
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// #ifdef APP-NVUE
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// 在安卓nvue上，如果通过translateX进行位移，到最后一个时，会导致右侧无法绘制圆角
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// 故用animation模块进行位移
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const ref = this.$refs?.['u-subsection__bar']?.ref;
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// 不存在ref的时候(理解为第一次初始化时，需要渲染dom，进行一定延时再获取ref)，这里的100ms是经过测试得出的结果(某些安卓需要延时久一点)，勿随意修改
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uni.$u.sleep(ref ? 0 : 100).then(() => {
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animation.transition(this.$refs['u-subsection__bar'].ref, {
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styles: {
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transform: `translateX(${n * this.itemRect.width}px)`,
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transformOrigin: 'center center'
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},
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duration: 300
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});
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});
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// #endif
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}
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}
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},
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computed: {
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wrapperStyle() {
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const style = {};
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// button模式时，设置背景色
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if (this.mode === 'button') {
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style.backgroundColor = this.disabled ? this.disabledBgColor : this.bgColor;
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}
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style.height = uni.$u.addUnit(this.height);
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return style;
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},
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// 滑块的样式
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barStyle() {
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const style = {};
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style.width = uni.$u.addUnit(this.itemRect.width);
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style.height = uni.$u.addUnit(this.itemRect.height);
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// 通过translateX移动滑块，其移动的距离为索引*item的宽度
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// #ifndef APP-NVUE
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style.transform = `translateX(${this.innerCurrent * this.itemRect.width}px)`;
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// #endif
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if (this.mode === 'subsection') {
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// 在subsection模式下，需要动态设置滑块的圆角，因为移动滑块使用的是translateX，无法通过父元素设置overflow: hidden隐藏滑块的直角
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style.backgroundColor = this.disabled ? this.disabledBgColor : this.activeColor;
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}
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if (this.mode === 'button' && this.barColor) {
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style.backgroundColor = this.disabled ? this.disabledBgColor : this.barColor;
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}
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return style;
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},
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// 分段器item的样式
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itemStyle(item) {
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return (item) => {
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const style = {};
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if (this.mode === 'subsection') {
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// 设置border的样式
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style.borderColor = this.disabled || (typeof item === 'object' && item.disabled) ? this.disabledColor : this.activeColor;
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style.borderWidth = '1px';
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style.borderStyle = 'solid';
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}
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return style;
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};
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},
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// 分段器文字颜色
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textStyle(index, item) {
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return (index, item) => {
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const style = {};
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style.fontWeight = this.bold && this.innerCurrent === index ? 'bold' : 'normal';
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style.fontSize = uni.$u.addUnit(this.fontSize);
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let isDisabled = this.disabled;
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let inactiveColor = this.inactiveColor;
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let activeColor = this.activeColor;
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let disabledColor = this.disabledColor;
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if(typeof item === 'object'){
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if(item.disabled){
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isDisabled = true;
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}
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if(item.inactiveColor){
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inactiveColor = item.inactiveColor;
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}
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if(item.activeColor){
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activeColor = item.activeColor;
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}
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if(item.disabledColor){
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disabledColor = item.disabledColor;
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}
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}
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// subsection模式下，激活时默认为白色的文字
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if (this.mode === 'subsection') {
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if (isDisabled) {
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style.color = disabledColor;
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} else {
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style.color = this.innerCurrent === index ? '#fff' : inactiveColor;
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}
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} else {
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// button模式下，激活时文字颜色默认为activeColor
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if (isDisabled) {
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style.color = disabledColor;
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} else {
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style.color = this.innerCurrent === index ? activeColor : inactiveColor;
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}
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}
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return style;
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};
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}
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},
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mounted() {
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this.init();
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//#ifndef MP-ALIPAY || MP-BAIDU || MP-TOUTIAO || MP-HARMONY
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uni.onWindowResize(this.windowResize);
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//#endif
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},
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beforeUnmount() {
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//#ifndef MP-ALIPAY || MP-BAIDU | MP-TOUTIAO | MP-HARMONY
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uni.offWindowResize(this.windowResize);
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//#endif
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},
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// #ifdef VUE3
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emits: ['change', 'update:current'],
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// #endif
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methods: {
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init() {
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uni.$u.sleep().then(() => this.getRect());
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},
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windowResize() {
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this.init();
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},
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// 判断展示文本
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getText(item) {
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return typeof item === 'object' ? item[this.keyName] : item;
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},
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// 获取组件的尺寸
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getRect() {
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// #ifndef APP-NVUE
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this.$uGetRect('.u-subsection__item--0').then(size => {
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this.itemRect = size;
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});
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// #endif
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// #ifdef APP-NVUE
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const ref = this.$refs['u-subsection__item--0'][0];
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ref &&
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dom.getComponentRect(ref, res => {
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this.itemRect = res.size;
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});
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// #endif
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},
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clickHandler(index, item) {
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if (this.disabled || (typeof item === 'object' && item.disabled)) {
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return;
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}
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this.innerCurrent = index;
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this.$emit('change', index, item);
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this.$emit('update:current', index);
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}
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}
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};
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</script>
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<style lang="scss" scoped>
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@import '../../libs/css/components.scss';
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.u-subsection {
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@include flex;
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position: relative;
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overflow: hidden;
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/* #ifndef APP-NVUE */
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width: 100%;
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box-sizing: border-box;
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/* #endif */
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&--button {
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background-color: rgb(238, 238, 239);
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padding: 3px;
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border-radius: 3px;
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align-items: stretch;
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&__square {
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&__bar {
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background-color: #ffffff;
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border-radius: 3px;
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}
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}
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&__circle {
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border-radius: 100px;
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&__bar {
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background-color: #ffffff;
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border-radius: 100px;
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}
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}
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}
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&--subsection {
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&__circle {
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border-radius: 100px;
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}
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}
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&__bar {
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position: absolute;
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/* #ifndef APP-NVUE */
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transition-property: transform, color;
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transition-duration: 0.3s;
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transition-timing-function: ease-in-out;
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/* #endif */
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&--first {
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&--square {
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border-top-left-radius: 3px;
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border-bottom-left-radius: 3px;
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border-top-right-radius: 0px;
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border-bottom-right-radius: 0px;
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}
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&--circle {
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border-top-left-radius: 100px;
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border-bottom-left-radius: 100px;
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border-top-right-radius: 0px;
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border-bottom-right-radius: 0px;
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}
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}
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&--center {
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border-top-left-radius: 0px;
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border-bottom-left-radius: 0px;
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border-top-right-radius: 0px;
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border-bottom-right-radius: 0px;
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}
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&--last {
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&--square {
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border-top-left-radius: 0px;
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border-bottom-left-radius: 0px;
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border-top-right-radius: 3px;
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border-bottom-right-radius: 3px;
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}
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&--circle {
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border-top-left-radius: 0px;
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border-bottom-left-radius: 0px;
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border-top-right-radius: 100px;
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border-bottom-right-radius: 100px;
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}
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}
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}
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&__item {
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@include flex;
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flex: 1;
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justify-content: center;
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align-items: center;
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// vue环境下，需要设置相对定位，因为滑块为绝对定位，item需要在滑块的上面
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position: relative;
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&--no-border-right {
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border-right-width: 0 !important;
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}
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&--first {
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&--square {
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border-top-left-radius: 3px;
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border-bottom-left-radius: 3px;
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}
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&--circle {
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border-top-left-radius: 100px;
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border-bottom-left-radius: 100px;
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}
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}
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&--last {
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&--square {
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border-top-right-radius: 3px;
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border-bottom-right-radius: 3px;
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}
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&--circle {
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border-top-right-radius: 100px;
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border-bottom-right-radius: 100px;
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}
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}
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&__text {
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font-size: 12px;
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line-height: 12px;
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@include flex;
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align-items: center;
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transition-property: color;
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transition-duration: 0.3s;
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}
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}
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}
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</style>
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