产品导入修改

app/Libraries/CommonHelper.php

@@ -209,85 +209,51 @@ class CommonHelper
             $('#videoPopup iframe').attr('src', videoUrl); // 设置 iframe 的 src
         });
 
+
 $('.downloadVideo').on('click', function(e) {
     e.preventDefault();
     const button = $(this);
     const videoUrl = button.attr('videoUrl');
 
-    // 使用 Dcat Admin 内置 loading 组件
-    Dcat.loading({
-        shade: 'rgba(0, 0, 0, 0.6)',
-        zIndex: 999999,
-        background: '#fff'
+    // 开启全局遮罩层（网页3的遮罩思路）
+    const loading = Dcat.loading({
+        shade: 'rgba(0,0,0,0.5)',
+        zIndex: 999999
     });
 
     fetch(videoUrl, {
         headers: new Headers({
             'Origin': location.origin,
-            'X-CSRF-TOKEN': Dcat.token // 集成 CSRF 保护[7](@ref)
+            'X-CSRF-TOKEN': Dcat.token
         }),
         mode: 'cors'
     }).then(response => {
         if (!response.ok) throw new Error(`HTTP \${response.status}`);
 
-        // 动态创建进度条组件
-        const progress = new Dcat.Progress({
-            title: '下载进度',
-            showCancel: true,
-            onCancel: () => controller.abort()
-        });
-
         const reader = response.body.getReader();
-        const controller = new AbortController();
-        const contentLength = +response.headers.get('Content-Length');
-        let receivedLength = 0;
         const chunks = [];
 
-        // 流式处理优化
+        // 流式处理核心逻辑（网页5的异步处理思想）
         const processChunk = ({ done, value }) => {
-            if (done || progress.canceled) {
-                if (!progress.canceled) {
-                    const blob = new Blob(chunks);
-                    const filename = videoUrl.split('/').pop() || 'video.mp4';
-                    const link = document.createElement('a');
-
-                    // 集成 Dcat 文件管理器[6](@ref)
-                    Dcat.handleFileDownload(blob, filename);
-                }
-                progress.close();
+            if (done) {
+                const blob = new Blob(chunks);
+                Dcat.handleFileDownload(blob, videoUrl.split('/').pop());
                 Dcat.loading(false);
                 return;
             }
 
             chunks.push(value);
-            receivedLength += value.length;
-            progress.update({
-                percent: Math.round((receivedLength / contentLength) * 100),
-                statusText: `\${formatBytes(receivedLength)} / \${formatBytes(contentLength)}`
-            });
-
             return reader.read().then(processChunk);
         };
 
         return reader.read().then(processChunk);
     }).catch(error => {
         Dcat.loading(false);
-        Dcat.error(`下载失败: \${error.message}`);
+        Dcat.error(`下载失败: \${error.message}`); // 网页7的错误处理思路
         console.error('Download Error:', error);
     });
 });
 
-// 字节单位转换工具函数
-function formatBytes(bytes) {
-    const units = ['B', 'KB', 'MB', 'GB'];
-    let i = 0;
-    while (bytes >= 1024 && i < units.length - 1) {
-        bytes /= 1024;
-        i++;
-    }
-    return `\${bytes.toFixed(1)} \${units[i]}`;
-}
-
 
         // 点击关闭按钮关闭视频
         $('.close-btn').on('click', function() {