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<template>
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<view class="u-tips" :class="['u-' + type, isShow ? 'u-tip-show' : '']" :style="{
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top: navbarHeight + 'px',
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zIndex: uZIndex
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}">{{ title }}</view>
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</template>
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<script>
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/**
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* topTips 顶部提示
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* @description 该组件一般用于页面顶部向下滑出一个提示，尔后自动收起的场景。
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* @tutorial https://www.uviewui.com/components/topTips.html
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* @property {String Number} navbar-height 导航栏高度(包含状态栏高度在内)，单位PX
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* @property {String Number} z-index z-index值（默认975）
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* @example <u-top-tips ref="uTips"></u-top-tips>
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*/
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export default {
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name: "u-top-tips",
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props: {
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// 导航栏高度，用于提示的初始化
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navbarHeight: {
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type: [Number, String],
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// #ifndef H5
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default: 0,
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// #endif
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// #ifdef H5
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default: 44,
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// #endif
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},
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// z-index值
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zIndex: {
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type: [Number, String],
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default: ''
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}
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},
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data() {
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return {
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timer: null, // 定时器
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isShow: false, // 是否显示消息组件
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title: '', // 组件中显示的消息内容
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type: 'primary', // 消息的类型（颜色不同），primary，success，error，warning，info
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duration: 2000, // 组件显示的时间，单位为毫秒
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};
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},
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computed: {
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uZIndex() {
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return this.zIndex ? this.zIndex : this.$u.zIndex.topTips;
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}
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},
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methods: {
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show(config = {}) {
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// 先清除定时器（可能是上一次定义的，需要清除了再开始新的）
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clearTimeout(this.timer);
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// 时间，内容，类型主题(type)等参数
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if (config.duration) this.duration = config.duration;
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if (config.type) this.type = config.type;
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this.title = config.title;
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this.isShow = true;
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// 倒计时
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this.timer = setTimeout(() => {
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this.isShow = false;
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clearTimeout(this.timer);
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this.timer = null;
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}, this.duration);
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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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view {
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box-sizing: border-box;
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}
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// 顶部弹出类型样式
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.u-tips {
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width: 100%;
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position: fixed;
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z-index: 1;
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padding: 20rpx 30rpx;
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color: #FFFFFF;
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font-size: 28rpx;
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left: 0;
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right: 0;
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@include vue-flex;
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align-items: center;
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justify-content: center;
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opacity: 0;
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// 此处为最核心点，translateY(-100%)意味着将其从Y轴隐藏（隐藏到顶部(h5)或者说导航栏(app)下面）
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transform: translateY(-100%);
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transition: all 0.35s linear;
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}
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.u-tip-show {
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transform: translateY(0);
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opacity: 1;
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z-index: 99;
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}
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.u-primary {
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background: $u-type-primary;
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}
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.u-success {
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background: $u-type-success;
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}
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.u-warning {
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background: $u-type-warning;
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}
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.u-error {
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background: $u-type-error;
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}
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.u-info {
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background: $u-type-info;
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}
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</style>
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