te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>javascript - Download multiple files with drag and drop to folder - Stack Overflow

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    javascript - Download multiple files with drag and drop to folder - Stack Overflow

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    I am trying to implement a feature where users can drag and drop multiple files to their desktop for direct download. If I drag one file, it works perfectly, but when I try to drag multiple files at once, it doesn’t work.

    What I Tried: Setting dataTransfer.setData("DownloadURL", ...) for each file This works for a single file, but for multiple files, only one file is downloaded. Joining multiple files with \n separator: Some sources suggest setting multiple DownloadURL values using newline separation:

    vent.dataTransfer.setData("DownloadURL", "application/pdf:file1.pdf:.pdf\napplication/pdf:file2.pdf:.pdf");

    However, Chrome is giving that file is not availible.

    Using dataTransfer.items instead of dataTransfer.setData: I tried dynamically adding files using event.dataTransfer.items.add(), but this doesn’t seem to support file downloads.

    code:

    document.addEventListener("dragstart", function (event) {
let draggedFiles = document.querySelectorAll(".files-a[data-selected='1']");

if (draggedFiles.length === 0) {
    let singleFile = event.target.closest(".files-a");
    if (singleFile) {
        draggedFiles = [singleFile]; // Convert single file to an array
    }
} else {
    draggedFiles = Array.from(draggedFiles); // Convert NodeList to an array
}

if (draggedFiles.length > 0) {
    console.log("Dragging multiple files:", draggedFiles);

    let downloadLinks = draggedFiles.map(file => {
        let fileUrl = file.getAttribute("href");
        let fileName = file.getAttribute("data-name") || fileUrl.split('/').pop();
        let mimeType = getMimeType(fileUrl);
        return `${mimeType}:${fileName}:${window.location.origin + "/priloge/" + fileUrl}`;
    }).join("\n"); // Attempt to set multiple files

    event.dataTransfer.setData("DownloadURL", downloadLinks);
}
});

    My Questions: Is it even possible to drag and drop multiple files for direct download in Chrome? Is there a workaround to trigger multiple file downloads via drag-and-drop? Does any browser allow DownloadURL with multiple files, or is this a hard restriction? I am testing in Chrome, but I’m open to hearing about other browser behaviors as well. Any help would be appreciated!

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