feat(projects): 添加页面缓存、记录在tab中的缓存页面的滚动条位置

src/router/helpers/index.ts

@@ -0,0 +1 @@
+export * from './scroll';

src/router/helpers/scroll.ts

@@ -0,0 +1,33 @@
+import type { RouterScrollBehavior } from 'vue-router';
+import { useTabStore } from '@/store';
+
+export const scrollBehavior: RouterScrollBehavior = (to, from) => {
+  return new Promise(resolve => {
+    const tab = useTabStore();
+
+    if (to.hash) {
+      resolve({
+        el: to.hash,
+        behavior: 'smooth'
+      });
+    }
+
+    const { left, top } = tab.getTabScrollPosition(to.path);
+    const scrollPosition = {
+      left,
+      top
+    };
+    const { scrollLeft, scrollTop } = document.documentElement;
+
+    const isFromCached = Boolean(from.meta.keepAlive);
+    if (isFromCached) {
+      tab.recordTabScrollPosition(from.path, { left: scrollLeft, top: scrollTop });
+    }
+
+    const duration = !scrollPosition.left && !scrollPosition.top ? 0 : 350;
+
+    setTimeout(() => {
+      resolve(scrollPosition);
+    }, duration);
+  });
+};