test: download File

src/jensen.js

@@ -695,17 +695,17 @@ Jensen.prototype.getFile = async function (filename, length, ondata, onprogress)
     let fname = [];
     for (let i = 0; i < filename.length; i++) fname.push(filename.charCodeAt(i));
 
-    function visibilitychange() {
-        if (document.visibilityState === 'hidden') {
-            console.log('Page is hidden');
-            // 可以选择暂停数据传输，或通过 Web Worker 继续后台任务
-        } else {
-            console.log('Page is visible');
-            // 重新开始或恢复数据传输
-        }
-    }
-
-    document.addEventListener('visibilitychange', visibilitychange);
+    // function visibilitychange() {
+    //     if (document.visibilityState === 'hidden') {
+    //         console.log('Page is hidden');
+    //         // 可以选择暂停数据传输，或通过 Web Worker 继续后台任务
+    //     } else {
+    //         console.log('Page is visible');
+    //         // 重新开始或恢复数据传输
+    //     }
+    // }
+    //
+    // document.addEventListener('visibilitychange', visibilitychange);
 
     let flen = 0;
     let handler = (msg) => {
@@ -713,12 +713,12 @@ Jensen.prototype.getFile = async function (filename, length, ondata, onprogress)
             flen += msg.body.length || msg.body.byteLength;
             ondata(msg.body);
             if (flen >= length) {
-                document.removeEventListener('visibilitychange', visibilitychange);
+                // document.removeEventListener('visibilitychange', visibilitychange);
                 // return OK indicates all file blocks received
                 return 'OK';
             }
         } else {
-            document.removeEventListener('visibilitychange', visibilitychange);
+            // document.removeEventListener('visibilitychange', visibilitychange);
             ondata('fail');
         }
     };