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| <template>
| <view
| class="cl-noticebar"
| :class="[
| {
| 'is-scrollable': scrollable,
| },
| ]"
| :style="{
| color,
| backgroundColor,
| }"
| v-if="visible"
| >
| <cl-icon
| name="close-border"
| :size="34"
| :margin="[0, 10, 0, 0]"
| @tap="close"
| v-if="closeable"
| />
|
| <slot name="icon">
| <cl-icon :class-name="icon" :size="34" :margin="[0, 10, 0, 0]" v-if="icon" />
| </slot>
|
| <view class="cl-noticebar__box">
| <view
| class="cl-noticebar__scroller"
| :class="[`is-${direction}`]"
| :style="{
| height: parseRpx(height),
| top: scroll.top + 'px',
| left: scroll.left + 'px',
| transition,
| transform: `translateX(-${scroll.translateX}px)`,
| }"
| >
| <view class="cl-noticebar__item" v-for="(item, index) in list" :key="index">
| <text class="cl-noticebar__text">{{ item }}</text>
| </view>
| </view>
| </view>
| </view>
| </template>
|
| <script lang="ts">
| import {
| defineComponent,
| onMounted,
| onUnmounted,
| reactive,
| ref,
| computed,
| getCurrentInstance,
| type PropType,
| } from "vue";
| import { isArray } from "lodash-es";
| import { parseRpx } from "/@/cool/utils";
|
| export default defineComponent({
| name: "cl-noticebar",
|
| props: {
| // 文本内容
| text: {
| type: [String, Array],
| default: "",
| required: true,
| },
| // 方向
| direction: {
| type: String as PropType<"horizontal" | "vertical">,
| default: "horizontal",
| },
| // 字体颜色
| color: String,
| // 背景颜色
| backgroundColor: String,
| // 能否滚动
| scrollable: Boolean,
| // 滚动时长
| duration: {
| type: Number,
| default: 10,
| },
| // 能否关闭
| closeable: Boolean,
| // 左侧图标
| icon: String,
| // 高度
| height: {
| type: [String, Number],
| default: 40,
| },
| },
|
| emits: ["close"],
|
| setup(props, { emit }) {
| const { proxy }: any = getCurrentInstance();
|
| // 是否可见
| const visible = ref(true);
|
| // 滚动配置
| const scroll = reactive({
| left: 0,
| top: 0,
| translateX: 0,
| duration: 0,
| });
|
| // 计时器
| let timer: any = null;
|
| // 文案列表
| const list = computed(() => {
| return isArray(props.text) ? props.text : [props.text];
| });
|
| // 动画过度
| const transition = computed(() => {
| if (props.direction == "horizontal") {
| return `transform ${scroll.duration}s linear`;
| } else {
| return `top 0.3s`;
| }
| });
|
| // 刷新
| function refresh() {
| if (props.scrollable) {
| // 清除定时器
| clear();
|
| // 获取盒子大小
| uni.createSelectorQuery()
| .in(proxy)
| .select(`.cl-noticebar__box`)
| .boundingClientRect((box: any) => {
| // 获取文本大小
| uni.createSelectorQuery()
| .in(proxy)
| .select(`.cl-noticebar__text`)
| .boundingClientRect((text: any) => {
| const duration = props.duration * 1000;
|
| // 水平滑动
| if (props.direction == "horizontal") {
| const fn = () => {
| scroll.duration = props.duration;
| scroll.left = box.width;
| scroll.translateX = text.width + scroll.left;
|
| timer = setTimeout(() => {
| scroll.translateX = 0;
| scroll.duration = 0;
|
| setTimeout(fn, 500);
| }, duration);
| };
|
| fn();
| }
| // 垂直滑动
| else {
| timer = setInterval(() => {
| if (
| Math.abs(scroll.top) >=
| box.height * (list.value.length - 1)
| ) {
| scroll.top = 0;
| } else {
| scroll.top -= box.height;
| }
| }, duration);
| }
| })
| .exec();
| })
| .exec();
| }
| }
|
| // 关闭
| function close() {
| clear();
| visible.value = false;
| emit("close");
| }
|
| // 清空
| function clear() {
| clearInterval(timer);
| clearTimeout(timer);
| timer = null;
| }
|
| onMounted(() => {
| refresh();
| });
|
| onUnmounted(() => {
| clear();
| });
|
| return {
| visible,
| scroll,
| list,
| transition,
| refresh,
| close,
| clear,
| parseRpx,
| };
| },
| });
| </script>
|
|
