CNCEC_APP/uni_modules/uview-pro/components/u-loading/u-loading.vue

<template>
    <view
        v-if="show"
        class="u-loading"
        :class="[mode === 'circle' ? 'u-loading-circle' : 'u-loading-flower', customClass]"
        :style="$u.toStyle(cricleStyle, customStyle)"
    >
    </view>
</template>

<script lang="ts">
export default {
    name: 'u-loading',
    options: {
        addGlobalClass: true,
        // #ifndef MP-TOUTIAO
        virtualHost: true,
        // #endif
        styleIsolation: 'shared'
    }
};
</script>

<script setup lang="ts">
import { computed } from 'vue';
import { LoadingProps } from './types';
import { $u } from '../../';

/**
 * loading 加载动画
 * @description 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。
 * @tutorial https://uviewpro.cn/zh/components/loading.html
 * @property {String} mode 模式选择，见官网说明（默认circle）
 * @property {String} color 动画活动区域的颜色，只对 mode = flower 模式有效（默认var(--u-light-color)）
 * @property {String|Number} size 加载图标的大小，单位rpx（默认34）
 * @property {Boolean} show 是否显示动画（默认true）
 * @example <u-loading mode="circle"></u-loading>
 */
const props = defineProps(LoadingProps);

/**
 * 加载中圆圈动画的样式
 * @returns {Record<string, any>}
 */
const cricleStyle = computed(() => {
    let style: Record<string, any> = {};
    style.width = props.size + 'rpx';
    style.height = props.size + 'rpx';
    // 只对圆圈模式生效
    if (props.mode === 'circle') {
        style.borderColor = `var(--u-divider-color) var(--u-divider-color) var(--u-divider-color) ${props.color ? props.color : 'var(--u-light-color)'}`;
    }
    return style;
});
</script>

<style lang="scss" scoped>
@import '../../libs/css/style.components.scss';

.u-loading-circle {
    /* #ifndef APP-NVUE */
    display: inline-flex;
    /* #endif */
    vertical-align: middle;
    width: 28rpx;
    height: 28rpx;
    background: 0 0;
    border-radius: 50%;
    border: 2px solid;
    border-color: var(--u-divider-color) var(--u-divider-color) var(--u-divider-color) var(--u-tips-color);
    animation: u-circle 1s linear infinite;
}

.u-loading-flower {
    width: 20px;
    height: 20px;
    display: inline-block;
    vertical-align: middle;
    -webkit-animation: u-flower 1s steps(12) infinite;
    animation: u-flower 1s steps(12) infinite;
    background: transparent
        url(data:image/svg+xml;base64,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)
        no-repeat;
    background-size: 100%;
}

@keyframes u-flower {
    0% {
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    to {
        -webkit-transform: rotate(1turn);
        transform: rotate(1turn);
    }
}

@keyframes u-circle {
    0% {
        transform: rotate(0);
    }
    100% {
        transform: rotate(360deg);
    }
}
</style>