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147 lines
3.1 KiB
147 lines
3.1 KiB
7 months ago
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<template>
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<view class="u-drawdown-item">
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<u-overlay
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customStyle="top: 126px"
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:show="show"
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:closeOnClickOverlay="closeOnClickOverlay"
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@click="overlayClick"
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></u-overlay>
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<view
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class="u-drawdown-item__content"
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:style="[style]"
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:animation="animationData"
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ref="animation"
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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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// #ifdef APP-NVUE
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const animation = uni.requireNativePlugin('animation')
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const dom = uni.requireNativePlugin('dom')
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// #endif
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import props from './props.js';
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/**
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* Drawdownitem
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* @description
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* @tutorial url
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* @property {String}
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* @event {Function}
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* @example
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*/
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export default {
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name: 'u-drawdown-item',
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mixins: [uni.$u.mpMixin, uni.$u.mixin, props],
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data() {
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return {
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show: false,
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top: '126px',
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// uni.createAnimation的导出数据
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animationData: {},
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}
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},
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mounted() {
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this.init()
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},
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watch: {
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// 发生变化时，需要去更新父组件对应的值
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dataChange(newValue, oldValue) {
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this.updateParentData()
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}
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},
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computed: {
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// 监听对应变量的变化
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dataChange() {
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return [this.title, this.disabled]
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},
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style() {
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const style = {
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zIndex: 10071,
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position: 'fixed',
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display: 'flex',
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left: 0,
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right: 0
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}
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style.top = uni.$u.addUnit(this.top)
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return style
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}
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},
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methods: {
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init() {
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this.updateParentData()
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},
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// 更新父组件所需的数据
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updateParentData() {
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// 获取父组件u-dropdown
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this.getParentData('u-dropdown')
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if (!this.parent) uni.$u.error('u-dropdown-item必须配合u-dropdown使用')
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// 查找父组件menuList数组中对应的标题数据
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const menuIndex = this.parent.menuList.findIndex(item => item.title === this.title)
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const menuContent = {
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title: this.title,
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disabled: this.disabled
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}
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if (menuIndex >= 0) {
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// 如果能找到，则直接修改
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this.parent.menuList[menuIndex] = menuContent;
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} else {
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// 如果无法找到，则为第一次添加，直接push即可
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this.parent.menuList.push(menuContent);
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}
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},
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async setContentAnimate(height) {
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this.animating = true
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// #ifdef APP-NVUE
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const ref = this.$refs['animation'].ref
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animation.transition(ref, {
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styles: {
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height: uni.$u.addUnit(height)
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},
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duration: this.duration,
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timingFunction: 'ease-in-out',
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}, () => {
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this.animating = false
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})
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// #endif
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// #ifndef APP-NVUE
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const animation = uni.createAnimation({
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timingFunction: 'ease-in-out',
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});
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animation
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.height(height)
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.step({
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duration: this.duration,
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})
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.step()
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// 导出动画数据给面板的animationData值
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this.animationData = animation.export()
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// 标识动画结束
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uni.$u.sleep(this.duration).then(() => {
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this.animating = false
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})
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// #endif
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},
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overlayClick() {
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this.show = false
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this.setContentAnimate(0)
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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-drawdown-item {
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&__content {
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background-color: #FFFFFF;
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overflow: hidden;
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height: 0;
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}
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}
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</style>
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