mirror of
https://gitee.com/huangge1199_admin/vue-pro.git
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235 lines
7.1 KiB
Vue
235 lines
7.1 KiB
Vue
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<template>
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<view
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class="u-icon"
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@tap="clickHandler"
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:class="['u-icon--' + labelPos]"
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>
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<image
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class="u-icon__img"
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v-if="isImg"
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:src="name"
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:mode="imgMode"
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:style="[imgStyle, $u.addStyle(customStyle)]"
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></image>
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<text
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v-else
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class="u-icon__icon"
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:class="uClasses"
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:style="[iconStyle, $u.addStyle(customStyle)]"
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:hover-class="hoverClass"
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>{{icon}}</text>
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<!-- 这里进行空字符串判断，如果仅仅是v-if="label"，可能会出现传递0的时候，结果也无法显示 -->
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<text
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v-if="label !== ''"
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class="u-icon__label"
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:style="{
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color: labelColor,
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fontSize: $u.addUnit(labelSize),
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marginLeft: labelPos == 'right' ? $u.addUnit(space) : 0,
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marginTop: labelPos == 'bottom' ? $u.addUnit(space) : 0,
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marginRight: labelPos == 'left' ? $u.addUnit(space) : 0,
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marginBottom: labelPos == 'top' ? $u.addUnit(space) : 0,
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}"
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>{{ label }}</text>
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</view>
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</template>
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<script>
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// #ifdef APP-NVUE
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// nvue通过weex的dom模块引入字体，相关文档地址如下：
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// https://weex.apache.org/zh/docs/modules/dom.html#addrule
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const fontUrl = 'https://at.alicdn.com/t/font_2225171_8kdcwk4po24.ttf'
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const domModule = weex.requireModule('dom')
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domModule.addRule('fontFace', {
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'fontFamily': "uicon-iconfont",
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'src': `url('${fontUrl}')`
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})
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// #endif
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// 引入图标名称，已经对应的unicode
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import icons from './icons'
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import props from './props.js';;
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/**
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* icon 图标
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* @description 基于字体的图标集，包含了大多数常见场景的图标。
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* @tutorial https://www.uviewui.com/components/icon.html
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* @property {String} name 图标名称，见示例图标集
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* @property {String} color 图标颜色,可接受主题色 （默认 color['u-content-color'] ）
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* @property {String | Number} size 图标字体大小，单位px （默认 '16px' ）
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* @property {Boolean} bold 是否显示粗体 （默认 false ）
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* @property {String | Number} index 点击图标的时候传递事件出去的index（用于区分点击了哪一个）
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* @property {String} hoverClass 图标按下去的样式类，用法同uni的view组件的hoverClass参数，详情见官网
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* @property {String} customPrefix 自定义扩展前缀，方便用户扩展自己的图标库 （默认 'uicon' ）
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* @property {String | Number} label 图标右侧的label文字
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* @property {String} labelPos label相对于图标的位置，只能right或bottom （默认 'right' ）
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* @property {String | Number} labelSize label字体大小，单位px （默认 '15px' ）
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* @property {String} labelColor 图标右侧的label文字颜色 （ 默认 color['u-content-color'] ）
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* @property {String | Number} space label与图标的距离，单位px （默认 '3px' ）
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* @property {String} imgMode 图片的mode
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* @property {String | Number} width 显示图片小图标时的宽度
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* @property {String | Number} height 显示图片小图标时的高度
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* @property {String | Number} top 图标在垂直方向上的定位 用于解决某些情况下，让图标垂直居中的用途 （默认 0 ）
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* @property {Boolean} stop 是否阻止事件传播 （默认 false ）
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* @property {Object} customStyle icon的样式，对象形式
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* @event {Function} click 点击图标时触发
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* @event {Function} touchstart 事件触摸时触发
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* @example <u-icon name="photo" color="#2979ff" size="28"></u-icon>
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*/
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export default {
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name: 'u-icon',
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data() {
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return {
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}
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},
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mixins: [uni.$u.mpMixin, uni.$u.mixin,props],
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computed: {
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uClasses() {
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let classes = []
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classes.push(this.customPrefix + '-' + this.name)
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// // uView的自定义图标类名为u-iconfont
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// if (this.customPrefix == 'uicon') {
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// classes.push('u-iconfont')
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// } else {
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// classes.push(this.customPrefix)
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// }
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// 主题色，通过类配置
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if (this.color && this.$u.config.type.includes(this.color)) classes.push('u-icon__icon--' + this.color)
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// 阿里，头条，百度小程序通过数组绑定类名时，无法直接使用[a, b, c]的形式，否则无法识别
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// 故需将其拆成一个字符串的形式，通过空格隔开各个类名
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//#ifdef MP-ALIPAY || MP-TOUTIAO || MP-BAIDU
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classes = classes.join(' ')
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//#endif
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return classes
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},
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iconStyle() {
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let style = {}
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style = {
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fontSize: this.$u.addUnit(this.size),
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lineHeight: this.$u.addUnit(this.size),
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fontWeight: this.bold ? 'bold' : 'normal',
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// 某些特殊情况需要设置一个到顶部的距离，才能更好的垂直居中
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top: this.$u.addUnit(this.top)
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}
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// 非主题色值时，才当作颜色值
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if (this.color && !this.$u.config.type.includes(this.color)) style.color = this.color
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return style
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},
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// 判断传入的name属性，是否图片路径，只要带有"/"均认为是图片形式
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isImg() {
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return this.name.indexOf('/') !== -1
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},
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imgStyle() {
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let style = {}
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// 如果设置width和height属性，则优先使用，否则使用size属性
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style.width = this.width ? this.$u.addUnit(this.width) : this.$u.addUnit(this.size)
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style.height = this.height ? this.$u.addUnit(this.height) : this.$u.addUnit(this.size)
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return style
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},
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// 通过图标名，查找对应的图标
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icon() {
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// 如果内置的图标中找不到对应的图标，就直接返回name值，因为用户可能传入的是unicode代码
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return icons['uicon-' + this.name] || this.name
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}
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},
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methods: {
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clickHandler(e) {
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this.$emit('click', this.index)
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// 是否阻止事件冒泡
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this.stop && this.$u.preventEvent(e)
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}
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}
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}
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</script>
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<style lang="scss" scoped>
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@import "../../libs/css/components.scss";
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// 变量定义
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$u-icon-primary: $u-primary !default;
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$u-icon-success: $u-success !default;
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$u-icon-info: $u-info !default;
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$u-icon-warning: $u-warning !default;
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$u-icon-error: $u-error !default;
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$u-icon-label-line-height:1 !default;
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/* #ifndef APP-NVUE */
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// 非nvue下加载字体
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@font-face {
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font-family: 'uicon-iconfont';
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src: url('https://at.alicdn.com/t/font_2225171_8kdcwk4po24.ttf') format('truetype');
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}
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/* #endif */
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.u-icon {
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/* #ifndef APP-NVUE */
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display: flex;
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/* #endif */
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align-items: center;
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&--left {
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flex-direction: row-reverse;
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align-items: center;
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}
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&--right {
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flex-direction: row;
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align-items: center;
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}
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&--top {
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flex-direction: column-reverse;
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justify-content: center;
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}
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&--bottom {
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flex-direction: column;
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justify-content: center;
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}
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&__icon {
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font-family: uicon-iconfont;
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position: relative;
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@include flex;
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align-items: center;
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&--primary {
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color: $u-icon-primary;
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}
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&--success {
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color: $u-icon-success;
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}
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&--error {
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color: $u-icon-error;
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}
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&--warning {
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color: $u-icon-warning;
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}
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&--info {
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color: $u-icon-info;
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}
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}
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&__img {
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/* #ifndef APP-NVUE */
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height: auto;
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will-change: transform;
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/* #endif */
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}
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&__label {
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/* #ifndef APP-NVUE */
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line-height: $u-icon-label-line-height;
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/* #endif */
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}
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}
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</style>
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