initHeader

frontend/src/components/Loading/fullScreen.ts

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+import { ElLoading } from "element-plus";
+
+/* 全局请求 loading */
+let loadingInstance: ReturnType<typeof ElLoading.service>;
+
+/**
+ * @description 开启 Loading
+ * */
+const startLoading = () => {
+  loadingInstance = ElLoading.service({
+    fullscreen: true,
+    lock: true,
+    text: "Loading",
+    background: "rgba(0, 0, 0, 0.7)"
+  });
+};
+
+/**
+ * @description 结束 Loading
+ * */
+const endLoading = () => {
+  loadingInstance.close();
+};
+
+/**
+ * @description 显示全屏加载
+ * */
+let needLoadingRequestCount = 0;
+export const showFullScreenLoading = () => {
+  if (needLoadingRequestCount === 0) {
+    startLoading();
+  }
+  needLoadingRequestCount++;
+};
+
+/**
+ * @description 隐藏全屏加载
+ * */
+export const tryHideFullScreenLoading = () => {
+  if (needLoadingRequestCount <= 0) return;
+  needLoadingRequestCount--;
+  if (needLoadingRequestCount === 0) {
+    endLoading();
+  }
+};

frontend/src/components/Loading/index.scss

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+.loading-box {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  width: 100%;
+  height: 100%;
+  .loading-wrap {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    padding: 98px;
+  }
+}
+.dot {
+  position: relative;
+  box-sizing: border-box;
+  display: inline-block;
+  width: 32px;
+  height: 32px;
+  font-size: 32px;
+  transform: rotate(45deg);
+  animation: ant-rotate 1.2s infinite linear;
+}
+.dot i {
+  position: absolute;
+  display: block;
+  width: 14px;
+  height: 14px;
+  background-color: var(--el-color-primary);
+  border-radius: 100%;
+  opacity: 0.3;
+  transform: scale(0.75);
+  transform-origin: 50% 50%;
+  animation: ant-spin-move 1s infinite linear alternate;
+}
+.dot i:nth-child(1) {
+  top: 0;
+  left: 0;
+}
+.dot i:nth-child(2) {
+  top: 0;
+  right: 0;
+  animation-delay: 0.4s;
+}
+.dot i:nth-child(3) {
+  right: 0;
+  bottom: 0;
+  animation-delay: 0.8s;
+}
+.dot i:nth-child(4) {
+  bottom: 0;
+  left: 0;
+  animation-delay: 1.2s;
+}
+
+@keyframes ant-rotate {
+  to {
+    transform: rotate(405deg);
+  }
+}
+
+@keyframes ant-spin-move {
+  to {
+    opacity: 1;
+  }
+}

frontend/src/components/Loading/index.vue

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+<template>
+  <div class="loading-box">
+    <div class="loading-wrap">
+      <span class="dot dot-spin"><i></i><i></i><i></i><i></i></span>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts" name="Loading"></script>
+
+<style scoped lang="scss">
+@import "./index.scss";
+</style>