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uni-app引入使用uView
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sfmind
@@ -0,0 +1,343 @@
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<template>
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<view
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class="u-loading-icon"
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:style="[$u.addStyle(customStyle)]"
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:class="[vertical && 'u-loading-icon--vertical']"
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v-if="show"
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>
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<view
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v-if="!webviewHide"
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class="u-loading-icon__spinner"
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:class="[`u-loading-icon__spinner--${mode}`]"
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ref="ani"
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:style="{
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color: color,
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width: $u.addUnit(size),
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height: $u.addUnit(size),
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borderTopColor: color,
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borderBottomColor: otherBorderColor,
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borderLeftColor: otherBorderColor,
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borderRightColor: otherBorderColor,
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'animation-duration': `${duration}ms`,
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'animation-timing-function': mode === 'semicircle' || mode === 'circle' ? timingFunction : ''
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}"
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>
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<block v-if="mode === 'spinner'">
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<!-- #ifndef APP-NVUE -->
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<view
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v-for="(item, index) in array12"
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:key="index"
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class="u-loading-icon__dot"
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>
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</view>
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<!-- #endif -->
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<!-- #ifdef APP-NVUE -->
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<!-- 此组件内部图标部分无法设置宽高，即使通过width和height配置了也无效 -->
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<loading-indicator
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v-if="!webviewHide"
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class="u-loading-indicator"
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:animating="true"
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:style="{
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color: color,
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width: $u.addUnit(size),
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height: $u.addUnit(size)
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}"
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/>
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<!-- #endif -->
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</block>
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</view>
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<text
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v-if="text"
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class="u-loading-icon__text"
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:style="{
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fontSize: $u.addUnit(textSize),
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color: textColor,
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}"
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>{{text}}</text>
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</view>
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</template>
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<script>
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import props from './props.js';
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// #ifdef APP-NVUE
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const animation = weex.requireModule('animation');
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// #endif
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/**
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* loading 加载动画
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* @description 警此组件为一个小动画，目前用在uView的loadmore加载更多和switch开关等组件的正在加载状态场景。
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* @tutorial https://www.uviewui.com/components/loading.html
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* @property {Boolean} show 是否显示组件 (默认 true)
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* @property {String} color 动画活动区域的颜色，只对 mode = flower 模式有效（默认color['u-tips-color']）
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* @property {String} textColor 提示文本的颜色（默认color['u-tips-color']）
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* @property {Boolean} vertical 文字和图标是否垂直排列 (默认 false )
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* @property {String} mode 模式选择，见官网说明（默认 'circle' ）
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* @property {String | Number} size 加载图标的大小，单位px （默认 24 ）
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* @property {String | Number} textSize 文字大小（默认 15 ）
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* @property {String | Number} text 文字内容
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* @property {String} timingFunction 动画模式 （默认 'ease-in-out' ）
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* @property {String | Number} duration 动画执行周期时间（默认 1200）
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* @property {String} inactiveColor mode=circle时的暗边颜色
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* @property {Object} customStyle 定义需要用到的外部样式
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* @example <u-loading mode="circle"></u-loading>
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*/
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export default {
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name: 'u-loading-icon',
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mixins: [uni.$u.mpMixin, uni.$u.mixin, props],
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data() {
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return {
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// Array.form可以通过一个伪数组对象创建指定长度的数组
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// https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Array/from
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array12: Array.from({
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length: 12
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}),
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// 这里需要设置默认值为360，否则在安卓nvue上，会延迟一个duration周期后才执行
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// 在iOS nvue上，则会一开始默认执行两个周期的动画
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aniAngel: 360, // 动画旋转角度
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webviewHide: false, // 监听webview的状态，如果隐藏了页面，则停止动画，以免性能消耗
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loading: false, // 是否运行中，针对nvue使用
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}
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},
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computed: {
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// 当为circle类型时，给其另外三边设置一个更轻一些的颜色
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// 之所以需要这么做的原因是，比如父组件传了color为红色，那么需要另外的三个边为浅红色
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// 而不能是固定的某一个其他颜色(因为这个固定的颜色可能浅蓝，导致效果没有那么细腻良好)
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otherBorderColor() {
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const lightColor = uni.$u.colorGradient(this.color, '#ffffff', 100)[80]
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if (this.mode === 'circle') {
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return this.inactiveColor ? this.inactiveColor : lightColor
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} else {
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return 'transparent'
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}
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// return this.mode === 'circle' ? this.inactiveColor ? this.inactiveColor : lightColor : 'transparent'
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}
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},
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watch: {
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show(n) {
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// nvue中，show为true，且为非loading状态，就重新执行动画模块
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// #ifdef APP-NVUE
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if (n && !this.loading) {
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setTimeout(() => {
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this.startAnimate()
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}, 30)
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}
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// #endif
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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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methods: {
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init() {
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setTimeout(() => {
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// #ifdef APP-NVUE
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this.show && this.nvueAnimate()
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// #endif
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// #ifdef APP-PLUS
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this.show && this.addEventListenerToWebview()
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// #endif
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}, 20)
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},
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// 监听webview的显示与隐藏
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addEventListenerToWebview() {
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// webview的堆栈
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const pages = getCurrentPages()
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// 当前页面
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const page = pages[pages.length - 1]
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// 当前页面的webview实例
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const currentWebview = page.$getAppWebview()
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// 监听webview的显示与隐藏，从而停止或者开始动画(为了性能)
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currentWebview.addEventListener('hide', () => {
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this.webviewHide = true
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})
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currentWebview.addEventListener('show', () => {
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this.webviewHide = false
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})
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},
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// #ifdef APP-NVUE
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nvueAnimate() {
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// nvue下，非spinner类型时才需要旋转，因为nvue的spinner类型，使用了weex的
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// loading-indicator组件，自带旋转功能
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this.mode !== 'spinner' && this.startAnimate()
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},
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// 执行nvue的animate模块动画
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startAnimate() {
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this.loading = true
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const ani = this.$refs.ani
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if (!ani) return
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animation.transition(ani, {
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// 进行角度旋转
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styles: {
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transform: `rotate(${this.aniAngel}deg)`,
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transformOrigin: 'center center'
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},
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duration: this.duration,
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timingFunction: this.timingFunction,
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// delay: 10
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}, () => {
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// 每次增加360deg，为了让其重新旋转一周
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this.aniAngel += 360
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// 动画结束后，继续循环执行动画，需要同时判断webviewHide变量
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// nvue安卓，页面隐藏后依然会继续执行startAnimate方法
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this.show && !this.webviewHide ? this.startAnimate() : this.loading = false
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})
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}
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// #endif
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}
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}
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</script>
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<style lang="scss" scoped>
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@import "../../libs/css/components.scss";
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$u-loading-icon-color: #c8c9cc !default;
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$u-loading-icon-text-margin-left:4px !default;
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$u-loading-icon-text-color:$u-content-color !default;
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$u-loading-icon-text-font-size:14px !default;
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$u-loading-icon-text-line-height:20px !default;
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$u-loading-width:30px !default;
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$u-loading-height:30px !default;
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$u-loading-max-width:100% !default;
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$u-loading-max-height:100% !default;
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$u-loading-semicircle-border-width: 2px !default;
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$u-loading-semicircle-border-color:transparent !default;
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$u-loading-semicircle-border-top-right-radius: 100px !default;
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$u-loading-semicircle-border-top-left-radius: 100px !default;
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$u-loading-semicircle-border-bottom-left-radius: 100px !default;
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$u-loading-semicircle-border-bottom-right-radiu: 100px !default;
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$u-loading-semicircle-border-style: solid !default;
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$u-loading-circle-border-top-right-radius: 100px !default;
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$u-loading-circle-border-top-left-radius: 100px !default;
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$u-loading-circle-border-bottom-left-radius: 100px !default;
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$u-loading-circle-border-bottom-right-radiu: 100px !default;
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$u-loading-circle-border-width:2px !default;
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$u-loading-circle-border-top-color:#e5e5e5 !default;
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$u-loading-circle-border-right-color:$u-loading-circle-border-top-color !default;
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$u-loading-circle-border-bottom-color:$u-loading-circle-border-top-color !default;
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$u-loading-circle-border-left-color:$u-loading-circle-border-top-color !default;
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$u-loading-circle-border-style:solid !default;
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$u-loading-icon-host-font-size:0px !default;
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$u-loading-icon-host-line-height:1 !default;
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$u-loading-icon-vertical-margin:6px 0 0 !default;
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$u-loading-icon-dot-top:0 !default;
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$u-loading-icon-dot-left:0 !default;
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$u-loading-icon-dot-width:100% !default;
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$u-loading-icon-dot-height:100% !default;
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$u-loading-icon-dot-before-width:2px !default;
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$u-loading-icon-dot-before-height:25% !default;
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$u-loading-icon-dot-before-margin:0 auto !default;
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$u-loading-icon-dot-before-background-color:currentColor !default;
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$u-loading-icon-dot-before-border-radius:40% !default;
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.u-loading-icon {
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/* #ifndef APP-NVUE */
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// display: inline-flex;
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/* #endif */
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flex-direction: row;
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align-items: center;
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justify-content: center;
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color: $u-loading-icon-color;
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&__text {
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margin-left: $u-loading-icon-text-margin-left;
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color: $u-loading-icon-text-color;
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font-size: $u-loading-icon-text-font-size;
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line-height: $u-loading-icon-text-line-height;
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}
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&__spinner {
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width: $u-loading-width;
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height: $u-loading-height;
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position: relative;
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/* #ifndef APP-NVUE */
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box-sizing: border-box;
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max-width: $u-loading-max-width;
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max-height: $u-loading-max-height;
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animation: u-rotate 1s linear infinite;
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/* #endif */
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}
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&__spinner--semicircle {
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border-width: $u-loading-semicircle-border-width;
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border-color: $u-loading-semicircle-border-color;
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border-top-right-radius: $u-loading-semicircle-border-top-right-radius;
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border-top-left-radius: $u-loading-semicircle-border-top-left-radius;
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border-bottom-left-radius: $u-loading-semicircle-border-bottom-left-radius;
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border-bottom-right-radius: $u-loading-semicircle-border-bottom-right-radiu;
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border-style: $u-loading-semicircle-border-style;
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}
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&__spinner--circle {
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border-top-right-radius: $u-loading-circle-border-top-right-radius;
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border-top-left-radius: $u-loading-circle-border-top-left-radius;
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border-bottom-left-radius: $u-loading-circle-border-bottom-left-radius;
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border-bottom-right-radius: $u-loading-circle-border-bottom-right-radiu;
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border-width: $u-loading-circle-border-width;
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border-top-color: $u-loading-circle-border-top-color;
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border-right-color: $u-loading-circle-border-right-color;
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border-bottom-color: $u-loading-circle-border-bottom-color;
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border-left-color: $u-loading-circle-border-left-color;
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border-style: $u-loading-circle-border-style;
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}
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&--vertical {
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flex-direction: column
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}
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}
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/* #ifndef APP-NVUE */
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:host {
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font-size: $u-loading-icon-host-font-size;
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line-height: $u-loading-icon-host-line-height;
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}
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.u-loading-icon {
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&__spinner--spinner {
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animation-timing-function: steps(12)
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}
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&__text:empty {
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display: none
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}
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&--vertical &__text {
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margin: $u-loading-icon-vertical-margin;
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color: $u-content-color;
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}
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&__dot {
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position: absolute;
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top: $u-loading-icon-dot-top;
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left: $u-loading-icon-dot-left;
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width: $u-loading-icon-dot-width;
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height: $u-loading-icon-dot-height;
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&:before {
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display: block;
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width: $u-loading-icon-dot-before-width;
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height: $u-loading-icon-dot-before-height;
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margin: $u-loading-icon-dot-before-margin;
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background-color: $u-loading-icon-dot-before-background-color;
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border-radius: $u-loading-icon-dot-before-border-radius;
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content: " "
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}
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}
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}
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@for $i from 1 through 12 {
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.u-loading-icon__dot:nth-of-type(#{$i}) {
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transform: rotate($i * 30deg);
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opacity: 1 - 0.0625 * ($i - 1);
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}
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}
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@keyframes u-rotate {
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0% {
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transform: rotate(0deg)
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}
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to {
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transform: rotate(1turn)
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}
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}
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/* #endif */
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</style>
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