✨ fix https://github.com/siyuan-note/siyuan/issues/2098

app/src/config/fileTree.ts

@@ -58,6 +58,14 @@ export const fileTree = {
     </div>
     <span class="fn__space"></span>
     <input class="b3-text-field fn__flex-center fn__size200" id="maxListCount" type="number" min="1" max="10240" value="${window.siyuan.config.fileTree.maxListCount}">
+</label>
+<label class="fn__flex b3-label">
+    <div class="fn__flex-1">
+        ${window.siyuan.languages.tabLimit}
+        <div class="b3-label__text">${window.siyuan.languages.tabLimit1}</div>
+    </div>
+    <span class="fn__space"></span>
+    <input class="b3-text-field fn__flex-center fn__size200" id="maxOpenTabCount" type="number" min="1" max="32" value="${window.siyuan.config.fileTree.maxOpenTabCount}">
 </label>`;
     },
     _send() {
@@ -70,6 +78,7 @@ export const fileTree = {
             allowCreateDeeper: (fileTree.element.querySelector("#allowCreateDeeper") as HTMLInputElement).checked,
             removeDocWithoutConfirm: (fileTree.element.querySelector("#removeDocWithoutConfirm") as HTMLInputElement).checked,
             maxListCount: parseInt((fileTree.element.querySelector("#maxListCount") as HTMLInputElement).value),
+            maxOpenTabCount: parseInt((fileTree.element.querySelector("#maxOpenTabCount") as HTMLInputElement).value),
         }, response => {
             fileTree.onSetfiletree(response.data);
         });

app/src/config/search.ts

@@ -18,7 +18,7 @@ export const initConfigSearch = (element: HTMLElement) => {
         ]),
 
         // 文档树
-        getLang(["selectOpen", "fileTree", "fileTree2", "fileTree3", "fileTree4",
+        getLang(["selectOpen", "tabLimit", "fileTree", "fileTree2", "fileTree3", "fileTree4",
             "fileTree5", "fileTree6", "fileTree7", "fileTree8", "fileTree12", "fileTree13", "fileTree15", "fileTree16", "fileTree17"]),
 
         // 图片

app/src/layout/Wnd.ts

@@ -425,7 +425,7 @@ export class Wnd {
         // 移除 centerLayout 中的 empty
         if (this.parent.type === "center" && this.children.length === 2 && !this.children[0].headElement) {
             this.removeTab(this.children[0].id);
-        } else if (this.children.length > 5) { // TODO: 需从后台设置中获取
+        } else if (this.children.length > window.siyuan.config.fileTree.maxOpenTabCount) {
             let removeId: string;
             let openTime: string;
             this.children.forEach((item, index) => {

app/src/types/index.d.ts

@@ -231,6 +231,7 @@ declare interface IFileTree {
     refCreateSavePath: string
     createDocNameTemplate: string
     sort: number
+    maxOpenTabCount: number
     maxListCount: number
 }