refactor: add loading component and demo

src/layouts/default/content/index.less

@@ -14,10 +14,6 @@
     position: absolute;
     z-index: @page-loading-z-index;
 
-    &.fill {
-      background: rgba(240, 242, 245) !important;
-    }
-
     > .basic-loading {
       margin-bottom: 15%;
     }

src/layouts/default/content/index.tsx

@@ -1,31 +1,25 @@
 import './index.less';
 
-import { defineComponent, unref, computed } from 'vue';
-import { FullLoading } from '/@/components/Loading/index';
+import { defineComponent, unref } from 'vue';
+import { Loading } from '/@/components/Loading';
 
 import { RouterView } from 'vue-router';
 
 import { useRootSetting } from '/@/hooks/setting/useRootSetting';
 import { useTransitionSetting } from '/@/hooks/setting/useTransitionSetting';
-import { useMultipleTabSetting } from '/@/hooks/setting/useMultipleTabSetting';
 
 export default defineComponent({
   name: 'LayoutContent',
   setup() {
     const { getOpenPageLoading } = useTransitionSetting();
-    const { getShowMultipleTab } = useMultipleTabSetting();
     const { getLayoutContentMode, getPageLoading } = useRootSetting();
 
-    const getLoadingClass = computed(() => {
-      return [
-        `layout-content__loading`,
-        { fill: unref(getShowMultipleTab), hidden: !unref(getPageLoading) },
-      ];
-    });
     return () => {
       return (
         <div class={['layout-content', unref(getLayoutContentMode)]}>
-          {unref(getOpenPageLoading) && <FullLoading class={unref(getLoadingClass)} />}
+          {unref(getOpenPageLoading) && (
+            <Loading loading={unref(getPageLoading)} absolute class="layout-content__loading" />
+          )}
           <RouterView />
         </div>
       );

src/layouts/page/index.tsx

@@ -22,6 +22,7 @@ export default defineComponent({
   name: 'PageLayout',
   setup() {
     const { getShowMenu } = useMenuSetting();
+
     const { getOpenKeepAlive, getCanEmbedIFramePage } = useRootSetting();
 
     const { getBasicTransition, getEnableTransition } = useTransitionSetting();