120 lines
4.3 KiB
JavaScript
120 lines
4.3 KiB
JavaScript
'use strict';
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// ---------------------------------------------------------------------------
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// 批量选择 / 批量下载 / 批量删除 (依赖 app.js 的 consts: checkAll, checkAllWrap,
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// batchBtn, batchCount, batchDeleteBtn, batchDeleteCount, filesList, toast)
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// 用 var 顶层声明, 跨文件共享 (classic <script> 加载顺序: app.js → helpers.js → batch.js).
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// ---------------------------------------------------------------------------
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var selectedFiles = new Set();
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function onCheckChange(name, checked) {
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if (checked) selectedFiles.add(name);
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else selectedFiles.delete(name);
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updateBatchUI();
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}
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function updateBatchUI() {
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const n = selectedFiles.size;
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batchCount.textContent = n;
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batchBtn.style.display = n > 0 ? 'inline-block' : 'none';
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batchDeleteCount.textContent = n;
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batchDeleteBtn.style.display = n > 0 ? 'inline-block' : 'none';
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const checks = filesList.querySelectorAll('.file-check');
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if (checks.length === 0) {
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checkAllWrap.style.display = 'none';
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checkAll.checked = false;
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checkAll.indeterminate = false;
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return;
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}
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checkAllWrap.style.display = 'inline-flex';
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let checkedCount = 0;
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checks.forEach(c => { if (c.checked) checkedCount++; });
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checkAll.checked = checkedCount === checks.length;
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checkAll.indeterminate = checkedCount > 0 && checkedCount < checks.length;
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}
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checkAll.addEventListener('change', () => {
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const want = checkAll.checked;
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filesList.querySelectorAll('.file-check').forEach(c => {
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if (c.checked !== want) {
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c.checked = want;
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const name = c.dataset.name;
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if (want) selectedFiles.add(name);
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else selectedFiles.delete(name);
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}
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});
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updateBatchUI();
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});
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batchBtn.addEventListener('click', async () => {
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if (selectedFiles.size === 0) return;
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const names = [...selectedFiles];
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batchBtn.disabled = true;
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const restore = () => { batchBtn.disabled = false; batchBtn.textContent = `批量下载 (${selectedFiles.size})`; };
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batchBtn.textContent = '打包中...';
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try {
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const r = await fetch('/download-zip', {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify({ files: names }),
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});
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if (!r.ok) {
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let msg = 'HTTP ' + r.status;
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try { msg = (await r.json()).error || msg; } catch {}
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throw new Error(msg);
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}
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// 从 Content-Disposition 取 server 起的 zip 文件名, 兜底 'files.zip'
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let fname = 'files.zip';
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const cd = r.headers.get('Content-Disposition') || '';
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const m = cd.match(/filename="?([^";]+)"?/);
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if (m) fname = m[1];
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const blob = await r.blob();
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const url = URL.createObjectURL(blob);
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const a = document.createElement('a');
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a.href = url; a.download = fname;
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document.body.appendChild(a); a.click(); document.body.removeChild(a);
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setTimeout(() => URL.revokeObjectURL(url), 1000);
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toast(`已下载 ${names.length} 个文件`, 'success');
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} catch (e) {
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toast('批量下载失败: ' + e.message, 'error');
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} finally {
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restore();
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}
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});
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batchDeleteBtn.addEventListener('click', async () => {
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if (selectedFiles.size === 0) return;
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const names = [...selectedFiles];
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if (!confirm(`确定删除选中的 ${names.length} 个文件吗? 该操作不可恢复.`)) return;
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batchDeleteBtn.disabled = true;
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const restore = () => { batchDeleteBtn.disabled = false; batchDeleteBtn.textContent = `批量删除 (${selectedFiles.size})`; };
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batchDeleteBtn.textContent = '删除中...';
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try {
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const r = await fetch('/files-delete', {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify({ files: names }),
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});
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if (!r.ok) {
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let msg = 'HTTP ' + r.status;
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try { msg = (await r.json()).error || msg; } catch {}
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throw new Error(msg);
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}
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const data = await r.json();
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toast(`已删除 ${data.deleted} 个文件`, 'success');
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selectedFiles.clear();
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await loadFiles();
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} catch (e) {
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toast('批量删除失败: ' + e.message, 'error');
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} finally {
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restore();
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}
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});
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// ---------------------------------------------------------------------------
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// Boot (从 app.js 末尾移过来, 确保 selectedFiles 已声明再启动首次 loadFiles)
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// ---------------------------------------------------------------------------
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loadFiles();
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setInterval(loadFiles, 30000);
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