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179 lines
4.7 KiB
179 lines
4.7 KiB
3 months ago
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<template>
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<view class="u-checkbox-group u-clearfix" :class="uFromData.inputAlign == 'right' ? 'flex-end' : ''"><slot></slot></view>
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</template>
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<script>
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import Emitter from "../../libs/util/emitter.js";
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/**
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* checkboxGroup 开关选择器父组件Group
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* @description 复选框组件一般用于需要多个选择的场景,该组件功能完整,使用方便
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* @tutorial https://www.uviewui.com/components/checkbox.html
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* @property {String Number} max 最多能选中多少个checkbox(默认999)
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* @property {String Number} size 组件整体的大小,单位rpx(默认40)
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* @property {Boolean} disabled 是否禁用所有checkbox(默认false)
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* @property {String Number} icon-size 图标大小,单位rpx(默认20)
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* @property {Boolean} label-disabled 是否禁止点击文本操作checkbox(默认false)
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* @property {String} width 宽度,需带单位
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* @property {String} width 宽度,需带单位
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* @property {String} shape 外观形状,shape-方形,circle-圆形(默认circle)
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* @property {Boolean} wrap 是否每个checkbox都换行(默认false)
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* @property {String} active-color 选中时的颜色,应用到所有子Checkbox组件(默认#2979ff)
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* @event {Function} change 任一个checkbox状态发生变化时触发,回调为一个对象
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* @example <u-checkbox-group></u-checkbox-group>
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*/
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export default {
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name: "u-checkbox-group",
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emits: ["update:modelValue", "input", "change"],
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mixins: [Emitter],
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props: {
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// 匹配某一个radio组件,如果某个radio的name值等于此值,那么这个radio就被会选中
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value: {
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type: [String, Number, Array, Boolean],
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default: ""
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},
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modelValue: {
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type: [String, Number, Array, Boolean],
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default: ""
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},
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// 最多能选中多少个checkbox
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max: {
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type: [Number, String],
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default: 999
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},
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// 所有选中项的 name
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// value: {
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// default: Array,
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// default() {
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// return []
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// }
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// },
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// 是否禁用所有复选框
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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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// 在表单内提交时的标识符
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name: {
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type: [Boolean, String],
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default: ""
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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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// 形状,square为方形,circle为圆型
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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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// 选中状态下的颜色
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activeColor: {
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type: String,
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default: "#2979ff"
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},
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// 组件的整体大小
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size: {
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type: [String, Number],
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default: 34
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},
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// 每个checkbox占u-checkbox-group的宽度
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width: {
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type: String,
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default: "auto"
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},
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// 是否每个checkbox都换行
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wrap: {
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type: Boolean,
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default: false
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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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},
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data() {
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return {
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values: [],
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uFromData: {
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inputAlign: "left"
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}
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};
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},
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created() {
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// 如果将children定义在data中,在微信小程序会造成循环引用而报错
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this.children = [];
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},
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mounted() {
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// 支付宝、头条小程序不支持provide/inject,所以使用这个方法获取整个父组件,在created定义,避免循环应用
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let parent = this.$u.$parent.call(this, "u-form");
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if (parent) {
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Object.keys(this.uFromData).map(key => {
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this.uFromData[key] = parent[key];
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});
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}
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},
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methods: {
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emitEvent(obj) {
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let values = this.values || [];
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if (obj.value) {
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let index = values.indexOf(obj.name);
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if (index === -1) {
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values.push(obj.name);
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}
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} else {
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let index = values.indexOf(obj.name);
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if (index > -1) {
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values.splice(index, 1);
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}
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}
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this.$emit("change", values);
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// 通过emit事件,设置父组件通过v-model双向绑定的值
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this.$emit("input", values);
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this.$emit("update:modelValue", values);
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// 发出事件,用于在表单组件中嵌入checkbox的情况,进行验证
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// 由于头条小程序执行迟钝,故需要用几十毫秒的延时
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setTimeout(() => {
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// 将当前的值发送到 u-form-item 进行校验
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this.dispatch("u-form-item", "onFieldChange", values);
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}, 60);
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},
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_emitEvent(obj) {
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let values = this.values || [];
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if (obj.value) {
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let index = values.indexOf(obj.name);
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if (index === -1) {
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values.push(obj.name);
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}
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} else {
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let index = values.indexOf(obj.name);
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if (index > -1) {
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values.splice(index, 1);
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}
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}
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//this.$emit("change", values);
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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/style.components.scss";
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.u-checkbox-group {
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/* #ifndef MP || APP-NVUE */
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display: inline-flex;
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flex-wrap: wrap;
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/* #endif */
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}
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.u-checkbox-group.flex-end {
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/* #ifndef APP-NVUE */
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display: inline-flex;
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justify-content: flex-end;
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flex-wrap: wrap;
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/* #endif */
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}
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</style>
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