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node_modules/uview-ui/components/u-switch/u-switch.vue
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174
node_modules/uview-ui/components/u-switch/u-switch.vue
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<template>
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<view class="u-switch" :class="[value == true ? 'u-switch--on' : '', disabled ? 'u-switch--disabled' : '']" @tap="onClick"
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:style="[switchStyle]">
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<view class="u-switch__node node-class">
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<u-loading :show="loading" class="u-switch__loading" :size="size * 0.6" :color="loadingColor" />
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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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* switch 开关选择器
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* @description 选择开关一般用于只有两个选择，且只能选其一的场景。
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* @tutorial https://www.uviewui.com/components/switch.html
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* @property {Boolean} loading 是否处于加载中（默认false）
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* @property {Boolean} disabled 是否禁用（默认false）
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* @property {String Number} size 开关尺寸，单位rpx（默认50）
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* @property {String} active-color 打开时的背景色（默认#2979ff）
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* @property {Boolean} inactive-color 关闭时的背景色（默认#ffffff）
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* @property {Boolean | Number | String} active-value 打开选择器时通过change事件发出的值（默认true）
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* @property {Boolean | Number | String} inactive-value 关闭选择器时通过change事件发出的值（默认false）
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* @event {Function} change 在switch打开或关闭时触发
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* @example <u-switch v-model="checked" active-color="red" inactive-color="#eee"></u-switch>
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*/
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export default {
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name: "u-switch",
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props: {
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// 是否为加载中状态
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loading: {
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type: Boolean,
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default: false
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},
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// 是否为禁用装填
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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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// 开关尺寸，单位rpx
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size: {
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type: [Number, String],
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default: 50
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},
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// 打开时的背景颜色
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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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// 关闭时的背景颜色
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inactiveColor: {
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type: String,
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default: '#ffffff'
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},
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// 通过v-model双向绑定的值
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value: {
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type: Boolean,
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default: false
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},
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// 是否使手机发生短促震动，目前只在iOS的微信小程序有效(2020-05-06)
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vibrateShort: {
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type: Boolean,
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default: false
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},
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// 打开选择器时的值
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activeValue: {
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type: [Number, String, Boolean],
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default: true
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},
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// 关闭选择器时的值
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inactiveValue: {
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type: [Number, String, Boolean],
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default: false
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},
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},
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data() {
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return {
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}
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},
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computed: {
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switchStyle() {
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let style = {};
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style.fontSize = this.size + 'rpx';
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style.backgroundColor = this.value ? this.activeColor : this.inactiveColor;
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return style;
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},
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loadingColor() {
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return this.value ? this.activeColor : null;
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}
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},
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methods: {
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onClick() {
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if (!this.disabled && !this.loading) {
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// 使手机产生短促震动，微信小程序有效，APP(HX 2.6.8)和H5无效
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if(this.vibrateShort) uni.vibrateShort();
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this.$emit('input', !this.value);
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// 放到下一个生命周期，因为双向绑定的value修改父组件状态需要时间，且是异步的
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this.$nextTick(() => {
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this.$emit('change', this.value ? this.activeValue : this.inactiveValue);
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})
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}
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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-switch {
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position: relative;
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display: inline-block;
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box-sizing: initial;
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width: 2em;
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width: var(--switch-width, 2em);
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height: 1em;
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height: var(--switch-height, 1em);
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background-color: #fff;
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background-color: var(--switch-background-color, #fff);
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border: 1px solid rgba(0, 0, 0, 0.1);
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border: var(--switch-border, 1px solid rgba(0, 0, 0, 0.1));
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border-radius: 1em;
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border-radius: var(--switch-node-size, 1em);
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transition: background-color 0.3s;
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transition: background-color var(--switch-transition-duration, 0.3s);
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}
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.u-switch__node {
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display: flex;
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align-items: center;
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justify-content: center;
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position: absolute;
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top: 0;
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left: 0;
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border-radius: 100%;
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z-index: 1;
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z-index: var(--switch-node-z-index, 1);
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width: 1em;
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width: var(--switch-node-size, 1em);
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height: 1em;
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height: var(--switch-node-size, 1em);
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background-color: #fff;
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background-color: var(--switch-node-background-color, #fff);
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box-shadow: 0 3px 1px 0 rgba(0, 0, 0, 0.05), 0 2px 2px 0 rgba(0, 0, 0, 0.1), 0 3px 3px 0 rgba(0, 0, 0, 0.05);
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box-shadow: var(--switch-node-box-shadow, 0 3px 1px 0 rgba(0, 0, 0, 0.05), 0 2px 2px 0 rgba(0, 0, 0, 0.1), 0 3px 3px 0 rgba(0, 0, 0, 0.05));
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transition: -webkit-transform 0.3s cubic-bezier(0.3, 1.05, 0.4, 1.05);
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transition: transform 0.3s cubic-bezier(0.3, 1.05, 0.4, 1.05);
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transition: transform 0.3s cubic-bezier(0.3, 1.05, 0.4, 1.05), -webkit-transform 0.3s cubic-bezier(0.3, 1.05, 0.4, 1.05);
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transition: -webkit-transform var(--switch-transition-duration, 0.3s) cubic-bezier(0.3, 1.05, 0.4, 1.05);
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transition: transform var(--switch-transition-duration, 0.3s) cubic-bezier(0.3, 1.05, 0.4, 1.05);
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transition: transform var(--switch-transition-duration, 0.3s) cubic-bezier(0.3, 1.05, 0.4, 1.05),
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-webkit-transform var(--switch-transition-duration, 0.3s) cubic-bezier(0.3, 1.05, 0.4, 1.05);
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}
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.u-switch__loading {
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display: flex;
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align-items: center;
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justify-content: center;
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}
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.u-switch--on {
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background-color: #1989fa;
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background-color: var(--switch-on-background-color, #1989fa);
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}
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.u-switch--on .u-switch__node {
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-webkit-transform: translateX(1em);
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transform: translateX(1em);
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-webkit-transform: translateX(calc(var(--switch-width, 2em) - var(--switch-node-size, 1em)));
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transform: translateX(calc(var(--switch-width, 2em) - var(--switch-node-size, 1em)));
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}
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.u-switch--disabled {
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opacity: 0.4;
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opacity: var(--switch-disabled-opacity, 0.4);
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}
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</style>
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