228 lines
6.0 KiB
Vue
228 lines
6.0 KiB
Vue
<template>
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<view class="u-radio" :style="[radioStyle]">
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<view class="u-radio__icon-wrap" @tap="toggle">
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<u-icon :class="iconClass" name="checkbox-mark" :size="iconSize" :color="iconColor" class="u-radio__icon" :style="[iconStyle]" />
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</view>
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<view class="u-label-class u-radio__label" @tap="onClickLabel" :style="{
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fontSize: labelSize + 'rpx'
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}">
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<slot />
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</view>
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</view>
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</template>
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<script>
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/**
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* radio 单选框
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* @description 单选框用于有一个选择，用户只能选择其中一个的场景。搭配u-radio-group使用
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* @tutorial https://www.uviewui.com/components/radio.html
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* @property {String Number} icon-size 图标大小，单位rpx（默认24）
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* @property {String Number} label-size label字体大小，单位rpx（默认28）
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* @property {String Number} name radio组件的标示符
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* @property {String} shape 形状，见上方说明（默认circle）
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* @property {Boolean} disabled 是否禁用（默认false）
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* @property {Boolean} label-disabled 点击文本是否可以操作radio（默认true）
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* @property {String} active-color 选中时的颜色，如设置radioGroup的active-color将失效
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* @event {Function} change 某个radio状态发生变化时触发(选中状态)
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* @example <u-radio :label-disabled="false">门掩黄昏，无计留春住</u-radio>
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*/
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export default {
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name: "u-radio",
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props: {
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// radio的名称
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name: {
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type: [String, Number],
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default: ''
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},
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// 形状，square为方形，circle为原型
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shape: {
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type: String,
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default: 'square'
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},
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// 是否禁用
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disabled: {
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type: Boolean,
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default: false
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},
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// 是否禁止点击提示语选中复选框
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labelDisabled: {
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type: Boolean,
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default: false
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},
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// 选中状态下的颜色，如设置此值，将会覆盖radioGroup的activeColor值
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activeColor: {
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type: String,
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default: ''
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},
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// 图标的大小，单位rpx
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iconSize: {
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type: [String, Number],
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default: 20
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},
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// label的字体大小，rpx单位
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labelSize: {
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type: [String, Number],
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default: 28
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},
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},
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inject: ['radioGroup'],
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data() {
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return {
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parentDisabled: false
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};
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},
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created() {
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this.parentDisabled = this.radioGroup.disabled;
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},
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computed: {
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// 设置radio的状态，要求radio的name等于radioGroup的value时才为选中状态
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iconStyle() {
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let style = {};
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if (this.radioActiveColor && this.name == this.radioGroup.value && !this.disabled && !this.parentDisabled) {
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style.borderColor = this.radioActiveColor;
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style.backgroundColor = this.radioActiveColor;
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}
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style.width = this.radioGroup.size + 'rpx';
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style.height = this.radioGroup.size + 'rpx';
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return style;
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},
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iconColor() {
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return this.name == this.radioGroup.value ? '#ffffff' : 'transparent';
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},
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iconClass() {
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let classs = [];
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classs.push('u-radio__icon--' + this.shape);
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if (this.name == this.radioGroup.value) classs.push('u-radio__icon--checked');
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if (this.disabled || this.parentDisabled) classs.push('u-radio__icon--disabled');
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if (this.name == this.radioGroup.value && (this.disabled || this.parentDisabled)) classs.push(
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'u-radio__icon--disabled--checked');
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return classs;
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},
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// 激活的颜色，可能受radioGroup和本组件的activeColor影响
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// 本组件的activeColor值优先
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radioActiveColor() {
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return this.activeColor ? this.activeColor : this.radioGroup.activeColor;
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},
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radioStyle() {
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let style = {};
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if(this.radioGroup.width) {
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style.width = this.radioGroup.width;
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// #ifdef MP
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// 各家小程序因为它们特殊的编译结构，使用float布局
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style.float = 'left';
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// #endif
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// #ifndef MP
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// H5和APP使用flex布局
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style.flex = `0 0 ${this.radioGroup.width}`;
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// #endif
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}
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if(this.radioGroup.wrap) {
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style.width = '100%';
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// #ifndef MP
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// H5和APP使用flex布局，将宽度设置100%，即可自动换行
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style.flex = '0 0 100%';
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// #endif
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}
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return style;
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}
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},
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methods: {
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onClickLabel() {
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if (!this.disabled && !this.labelDisabled && !this.parentDisabled) {
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this.radioGroup.setValue(this.name);
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this.emitEvent();
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}
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},
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toggle() {
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if (!this.disabled && !this.parentDisabled) {
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this.radioGroup.setValue(this.name);
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this.emitEvent();
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}
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},
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emitEvent() {
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this.$emit('change', this.name)
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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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.u-radio {
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display: -webkit-flex;
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display: flex;
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-webkit-align-items: center;
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align-items: center;
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overflow: hidden;
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-webkit-user-select: none;
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user-select: none;
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line-height: 1.8;
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}
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.u-radio__icon-wrap,
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.u-radio__label {
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color: $u-content-color;
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}
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.u-radio__icon-wrap {
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-webkit-flex: none;
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flex: none;
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}
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.u-radio__icon {
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display: -webkit-flex;
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display: flex;
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-webkit-align-items: center;
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align-items: center;
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-webkit-justify-content: center;
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justify-content: center;
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box-sizing: border-box;
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width: 42rpx;
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height: 42rpx;
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color: transparent;
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text-align: center;
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transition-property: color, border-color, background-color;
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font-size: 20px;
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border: 1px solid #c8c9cc;
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transition-duration: 0.2s;
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}
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.u-radio__icon--circle {
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border-radius: 100%;
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}
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.u-radio__icon--square {
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border-radius: 3px;
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}
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.u-radio__icon--checked {
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color: #fff;
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background-color: #2979ff;
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border-color: #2979ff;
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}
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.u-radio__icon--disabled {
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background-color: #ebedf0;
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border-color: #c8c9cc;
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}
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.u-radio__icon--disabled--checked {
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color: #c8c9cc !important;
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}
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.u-radio__label {
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word-wrap: break-word;
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margin-left: 10rpx;
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margin-right: 24rpx;
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color: $u-content-color;
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font-size: 30rpx;
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}
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.u-radio__label--disabled {
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color: #c8c9cc;
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}
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.u-radio__label:empty {
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margin: 0;
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}
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</style>
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