feat: 添加 usePageHeight hook 解决当无法约束子元素溢出的问题

src/layout/hooks/usePageHeight.ts

@@ -0,0 +1,38 @@
+import { computed } from "vue";
+
+import { useGlobal } from "@pureadmin/utils";
+import { useTags } from "@/layout/hooks/useTag";
+
+const NAVBAR_HEIGHT = 48; // 顶部导航栏高度
+const TAGS_HEIGHT_CHROME = 38; // Chrome 模式标签页高度
+const TAGS_HEIGHT_DEFAULT = 34; // 默认标签页高度
+const FOOTER_HEIGHT = 32; // 页脚高度
+
+/**
+ * 获取当前页面内容区的可用高度
+ */
+export function usePageHeight() {
+  const { $storage } = useGlobal<GlobalPropertiesApi>();
+  const { showModel } = useTags();
+
+  const hideTabs = computed(() => $storage?.configure.hideTabs);
+  const hideFooter = computed(() => $storage?.configure.hideFooter);
+
+  const tagsHeight = computed(() => {
+    if (hideTabs.value) return 0;
+    return showModel.value === "chrome"
+      ? TAGS_HEIGHT_CHROME
+      : TAGS_HEIGHT_DEFAULT;
+  });
+
+  const footerHeight = computed(() => {
+    return hideFooter.value ? 0 : FOOTER_HEIGHT;
+  });
+
+  const pageHeight = computed(() => {
+    const offset = NAVBAR_HEIGHT + tagsHeight.value + footerHeight.value;
+    return `calc(100vh - ${offset}px)`;
+  });
+
+  return pageHeight;
+}