添加显示图片和视频功能

src-tauri/Cargo.lock

@@ -1465,6 +1465,12 @@ dependencies = [
  "pin-project-lite",
 ]
 
+[[package]]
+name = "http-range"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "21dec9db110f5f872ed9699c3ecf50cf16f423502706ba5c72462e28d3157573"
+
 [[package]]
 name = "httparse"
 version = "1.10.1"
@@ -3291,6 +3297,7 @@ dependencies = [
  "gtk",
  "heck 0.5.0",
  "http",
+ "http-range",
  "jni",
  "libc",
  "log",

src-tauri/Cargo.toml

@@ -18,7 +18,7 @@ crate-type = ["staticlib", "cdylib", "rlib"]
 tauri-build = { version = "2", features = [] }
 
 [dependencies]
-tauri = { version = "2", features = [] }
+tauri = { version = "2", features = ["protocol-asset"] }
 tauri-plugin-dialog = "2"
 tauri-plugin-opener = "2"
 serde = { version = "1", features = ["derive"] }

src-tauri/src/lib.rs

@@ -1,7 +1,7 @@
 // Learn more about Tauri commands at https://tauri.app/develop/calling-rust/
 use std::fs;
 use tauri::menu::{MenuBuilder, MenuItemBuilder, SubmenuBuilder};
-use tauri::Emitter;
+use tauri::{Emitter, Manager};
 use tauri_plugin_dialog::DialogExt;
 
 #[derive(Debug, Clone, serde::Serialize)]
@@ -43,8 +43,12 @@ fn pick_folder(app: tauri::AppHandle) -> Option<String> {
 }
 
 #[tauri::command]
-fn read_dir(path: String) -> Result<Vec<DirEntry>, String> {
+fn read_dir(app: tauri::AppHandle, path: String) -> Result<Vec<DirEntry>, String> {
     let entries = fs::read_dir(&path).map_err(|e| format!("无法读取目录: {}", e))?;
+    app.asset_protocol_scope()
+        .allow_directory(&path, true)
+        .map_err(|e| format!("无法授权媒体预览目录: {}", e))?;
+
     let allowed_extensions = [
         "md", "png", "jpg", "jpeg", "gif", "webp", "avif", "mp4", "webm", "mov", "m4v", "ogv",
     ];

src-tauri/tauri.conf.json

@@ -21,7 +21,11 @@
       }
     ],
     "security": {
-      "csp": null
+      "csp": null,
+      "assetProtocol": {
+        "enable": true,
+        "scope": []
+      }
     }
   },
   "bundle": {