From 07989db28e6283eb55a56083ebec44d0b1d3ad88 Mon Sep 17 00:00:00 2001
From: thzxx <thzxx@users.noreply.gitee.com>
Date: Mon, 18 May 2026 14:16:34 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E9=99=90=E5=88=B6=E5=8F=AA=E8=83=BD?=
 =?UTF-8?q?=E6=89=93=E5=BC=80=20md/txt=20=E6=96=87=E4=BB=B6=EF=BC=8C?=
 =?UTF-8?q?=E6=96=B0=E5=BB=BA=E6=96=87=E4=BB=B6=E4=BB=85=E4=BF=9D=E5=AD=98?=
 =?UTF-8?q?=E4=B8=BA=20md?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- 打开对话框移除「所有文件」选项
- 保存对话框移除 .txt 选项
- 拖拽打开增加扩展名过滤
- 浏览器降级路径同步过滤
---
 main.js              | 9 +++------
 renderer/renderer.js | 5 +++++
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/main.js b/main.js
index ef3d7f7..86d3d24 100644
--- a/main.js
+++ b/main.js
@@ -90,8 +90,7 @@ async function showOpenDialog() {
   const result = await dialog.showOpenDialog(mainWindow, {
     properties: ['openFile'],
     filters: [
-      { name: 'Markdown 文件', extensions: ['md', 'markdown', 'txt'] },
-      { name: '所有文件', extensions: ['*'] }
+      { name: 'Markdown 文件', extensions: ['md', 'markdown', 'txt'] }
     ]
   });
   if (!result.canceled && result.filePaths.length > 0) {
@@ -169,8 +168,7 @@ ipcMain.handle('file:save', async (event, { filePath, content }) => {
     } else {
       const result = await dialog.showSaveDialog(mainWindow, {
         filters: [
-          { name: 'Markdown 文件', extensions: ['md'] },
-          { name: '文本文件', extensions: ['txt'] }
+          { name: 'Markdown 文件', extensions: ['md'] }
         ]
       });
       if (!result.canceled) {
@@ -192,8 +190,7 @@ ipcMain.handle('file:saveAs', async (event, { content }) => {
   try {
     const result = await dialog.showSaveDialog(mainWindow, {
       filters: [
-        { name: 'Markdown 文件', extensions: ['md'] },
-        { name: '文本文件', extensions: ['txt'] }
+        { name: 'Markdown 文件', extensions: ['md'] }
       ]
     });
     if (!result.canceled) {
diff --git a/renderer/renderer.js b/renderer/renderer.js
index 4be9963..38c8603 100644
--- a/renderer/renderer.js
+++ b/renderer/renderer.js
@@ -429,6 +429,8 @@
       input.multiple = true;
       input.onchange = (e) => {
         Array.from(e.target.files).forEach(file => {
+          const ext = file.name.substring(file.name.lastIndexOf('.')).toLowerCase();
+          if (!['.md', '.markdown', '.txt'].includes(ext)) return;
           const reader = new FileReader();
           reader.onload = (ev) => {
             createNewTab(file.name, ev.target.result);
@@ -584,8 +586,11 @@
       dropOverlay.classList.add('hidden');
 
       const files = e.dataTransfer.files;
+      const allowedExts = ['.md', '.markdown', '.txt'];
       for (const file of files) {
         const filePath = file.path;
+        const ext = filePath ? filePath.substring(filePath.lastIndexOf('.')).toLowerCase() : '';
+        if (!allowedExts.includes(ext)) continue;
         if (filePath && typeof window.electronAPI !== 'undefined') {
           const result = await window.electronAPI.readFile(filePath);
           if (result.success) {