更新:登录功能
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<template>
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<view :class="`wd-segmented ${customClass}`" :style="customStyle">
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<view
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:class="`wd-segmented__item is-${size} ${state.activeIndex === index ? 'is-active' : ''} ${
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disabled || (isObj(option) ? option.disabled : false) ? 'is-disabled' : ''
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}`"
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@click="handleClick(option, index)"
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v-for="(option, index) in options"
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:key="index"
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>
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<view class="wd-segmented__item-label">
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<slot name="label" v-if="$slots.label" :option="isObj(option) ? option : { value: option }"></slot>
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<template v-else>
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{{ isObj(option) ? option.value : option }}
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</template>
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</view>
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</view>
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<view :class="`wd-segmented__item--active ${activeDisabled ? 'is-disabled' : ''}`" :style="state.activeStyle"></view>
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</view>
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</template>
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<script lang="ts">
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export default {
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name: 'wd-segmented',
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options: {
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addGlobalClass: true,
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virtualHost: true,
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styleIsolation: 'shared'
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}
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}
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</script>
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<script setup lang="ts">
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import { computed, getCurrentInstance, onMounted, reactive, watch } from 'vue'
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import { getRect, isObj, objToStyle, addUnit, pause, isEqual } from '../common/util'
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import type { CSSProperties } from 'vue'
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import { segmentedProps, type SegmentedExpose, type SegmentedOption } from './types'
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const $item = '.wd-segmented__item'
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const props = defineProps(segmentedProps)
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const emit = defineEmits(['update:value', 'change', 'click'])
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const state = reactive({
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activeIndex: 0, // 选中项
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activeStyle: '' // 选中样式
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})
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const activeDisabled = computed(() => {
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return props.disabled || (props.options[0] && isObj(props.options[0]) ? props.options[0].disabled : false)
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})
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watch(
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() => props.value,
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() => {
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updateCurrentIndex()
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updateActiveStyle()
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if (props.vibrateShort) {
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uni.vibrateShort({})
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}
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},
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{
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immediate: false
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}
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)
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const { proxy } = getCurrentInstance() as any
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onMounted(async () => {
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updateCurrentIndex()
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await pause()
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updateActiveStyle(false)
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})
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/**
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* 更新滑块偏移量
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*
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*/
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function updateActiveStyle(animation: boolean = true) {
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getRect($item, true, proxy).then((rects) => {
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const rect = rects[state.activeIndex]
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const style: CSSProperties = {
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position: 'absolute',
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width: addUnit(rect.width!),
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'z-index': 0
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}
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const left = rects.slice(0, state.activeIndex).reduce((prev, curr) => prev + Number(curr.width), 0)
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if (left) {
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style.transform = `translateX(${left}px)`
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}
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if (animation) {
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style.transition = 'all 0.2s cubic-bezier(0.645, 0.045, 0.355, 1)'
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}
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state.activeStyle = objToStyle(style)
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})
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}
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/**
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* 更新值
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*/
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function updateValue(newValue: string | number, option: string | number | SegmentedOption) {
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if (!isEqual(newValue, props.value)) {
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emit('update:value', newValue)
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emit('change', isObj(option) ? option : { value: newValue })
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}
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}
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/**
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* 更新当前下标
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*/
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function updateCurrentIndex() {
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const index = props.options.findIndex((option: string | number | SegmentedOption) => {
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const value = isObj(option) ? option.value : option
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return isEqual(value, props.value)
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})
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if (index >= 0) {
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state.activeIndex = index
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} else {
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const value = isObj(props.options[0]) ? props.options[0].value : props.options[0]
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updateValue(value, props.options[0])
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}
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}
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function handleClick(option: string | number | SegmentedOption, index: number) {
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const disabled = props.disabled || (isObj(option) ? option.disabled : false)
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if (disabled) {
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return
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}
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const value = isObj(option) ? option.value : option
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state.activeIndex = index
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updateActiveStyle()
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updateValue(value, option)
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emit('click', isObj(option) ? option : { value })
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}
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defineExpose<SegmentedExpose>({
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updateActiveStyle
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})
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</script>
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<style lang="scss" scoped>
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@import './index.scss';
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</style>
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