✨ feat: 新增 WYSIWYG 编辑器功能和相关工具栏事件处理

web/include/vditor/src/ts/util/hasClosestByHeadings.ts

@@ -0,0 +1,27 @@
+// NOTE: 减少 method.ts 打包，故从 hasClosest.ts 中拆分
+export const hasClosestByTag = (element: Node, nodeName: string) => {
+    if (!element) {
+        return false;
+    }
+    if (element.nodeType === 3) {
+        element = element.parentElement;
+    }
+    let e = element as HTMLElement;
+    let isClosest = false;
+    while (e && !isClosest && !e.classList.contains("vditor-reset")) {
+        if (e.nodeName.indexOf(nodeName) === 0) {
+            isClosest = true;
+        } else {
+            e = e.parentElement;
+        }
+    }
+    return isClosest && e;
+};
+
+export const hasClosestByHeadings = (element: Node) => {
+    const headingElement = hasClosestByTag(element, "H");
+    if (headingElement && headingElement.tagName.length === 2 && headingElement.tagName !== "HR") {
+        return headingElement;
+    }
+    return false;
+};