feat: file viewer
This commit is contained in:
tao.chen
@@ -357,3 +357,65 @@
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transition: width 0.2s;
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}
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.total-label { font-size: 12px; color: var(--text-dim); white-space: nowrap; }
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/* Preview modal */
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.preview-modal {
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position: fixed;
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inset: 0;
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z-index: 10000;
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display: flex;
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align-items: center;
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justify-content: center;
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}
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.preview-modal[hidden] { display: none; }
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.preview-backdrop {
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position: absolute;
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inset: 0;
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background: rgba(0, 0, 0, 0.7);
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backdrop-filter: blur(2px);
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}
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.preview-panel {
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position: relative;
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width: min(1100px, 92vw);
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height: min(820px, 88vh);
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background: var(--panel);
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border: 1px solid var(--border);
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border-radius: 12px;
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box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
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display: flex;
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flex-direction: column;
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overflow: hidden;
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}
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.preview-header {
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display: flex;
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align-items: center;
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justify-content: space-between;
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gap: 12px;
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padding: 12px 16px;
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border-bottom: 1px solid var(--border);
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background: var(--panel-2);
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}
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.preview-title {
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flex: 1;
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min-width: 0;
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color: var(--text);
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font-size: 14px;
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overflow: hidden;
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text-overflow: ellipsis;
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white-space: nowrap;
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}
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.preview-actions { display: flex; gap: 6px; flex-shrink: 0; }
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.preview-body {
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flex: 1;
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min-height: 0;
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background: var(--bg);
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overflow: auto;
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}
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.preview-loading {
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display: flex;
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align-items: center;
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justify-content: center;
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height: 100%;
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color: var(--text-dim);
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font-size: 14px;
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}
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@@ -23,6 +23,12 @@ const batchBtn = $('batchBtn');
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const batchCount = $('batchCount');
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const batchDeleteBtn = $('batchDeleteBtn');
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const batchDeleteCount= $('batchDeleteCount');
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const previewModal = $('previewModal');
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const previewBackdrop= $('previewBackdrop');
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const previewTitle = $('previewTitle');
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const previewBody = $('previewBody');
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const previewClose = $('previewClose');
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const previewDownload= $('previewDownload');
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// pending[i] = { id, file, xhr, status: 'pending'|'uploading'|'done'|'error'|'cancelled', progress, error }
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let pending = [];
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@@ -377,12 +383,14 @@ function fileRow(f) {
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</div>
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</div>
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<div class="file-actions">
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<button class="icon-btn" title="预览" data-preview="${escapeHtml(f.filename)}">▷</button>
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<button class="icon-btn" title="复制链接" data-url="${escapeHtml(f.url)}">⎘</button>
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<a class="icon-btn" title="下载" href="${escapeHtml(f.url)}" download>↓</a>
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<button class="icon-btn danger" title="删除" data-delete="${escapeHtml(f.filename)}">✕</button>
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</div>
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`;
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div.querySelector('.file-check').addEventListener('change', e => onCheckChange(f.filename, e.target.checked));
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div.querySelector('[data-preview]').onclick = () => openPreview(f.filename, f.url);
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div.querySelector('[data-url]').onclick = () => copyToClipboard(location.origin + f.url);
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div.querySelector('[data-delete]').onclick = () => deleteFile(f.filename, div);
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return div;
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@@ -439,5 +447,58 @@ async function copyToClipboard(text) {
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}
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}
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// ---------------------------------------------------------------------------
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// Preview modal (依赖 CDN 加载的 FlyfishFileViewerWebFull 全局对象)
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// ---------------------------------------------------------------------------
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let previewViewer = null;
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function openPreview(filename, url) {
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if (!window.FlyfishFileViewerWebFull) {
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toast('预览组件尚未加载完成, 请稍后再试', 'error');
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return;
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}
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previewTitle.textContent = filename;
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previewDownload.href = url;
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previewDownload.download = filename;
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previewBody.innerHTML = '<div class="preview-loading">加载中...</div>';
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previewModal.hidden = false;
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document.body.style.overflow = 'hidden';
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// 卸载上一个实例, 防内存泄漏
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if (previewViewer && typeof previewViewer.destroy === 'function') {
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try { previewViewer.destroy(); } catch {}
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}
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previewViewer = null;
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// mountViewer 接收 element 或 selector; 用容器 id 保证重入安全
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try {
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previewViewer = window.FlyfishFileViewerWebFull.mountViewer(previewBody, {
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url,
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options: {
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theme: 'dark',
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toolbar: { position: 'bottom-right' },
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},
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});
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} catch (e) {
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previewBody.innerHTML = `<div class="preview-loading">预览失败: ${escapeHtml(e && e.message || 'unknown')}</div>`;
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}
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}
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function closePreview() {
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previewModal.hidden = true;
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document.body.style.overflow = '';
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if (previewViewer && typeof previewViewer.destroy === 'function') {
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try { previewViewer.destroy(); } catch {}
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}
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previewViewer = null;
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previewBody.innerHTML = '';
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}
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previewClose.addEventListener('click', closePreview);
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previewBackdrop.addEventListener('click', closePreview);
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document.addEventListener('keydown', e => {
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if (e.key === 'Escape' && !previewModal.hidden) closePreview();
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});
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// formatRemain / isAlmostExpired / iconFor / formatSize / formatTime / escapeHtml
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// 见 helpers.js; 倒计时 setInterval 也在 helpers.js 中启动
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@@ -62,6 +62,22 @@
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<div class="toast" id="toast"></div>
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<!-- 文件预览弹窗 (CDN 资源经后端 /file-viewer/*filepath 缓存代理, 避免运行时 unpkg 依赖) -->
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<div class="preview-modal" id="previewModal" hidden>
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<div class="preview-backdrop" id="previewBackdrop"></div>
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<div class="preview-panel">
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<div class="preview-header">
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<span class="preview-title" id="previewTitle"></span>
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<div class="preview-actions">
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<a class="icon-btn" id="previewDownload" title="下载" download>↓</a>
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<button class="icon-btn" id="previewClose" title="关闭" aria-label="关闭预览">✕</button>
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</div>
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</div>
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<div class="preview-body" id="previewBody"></div>
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</div>
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</div>
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<script src="/file-viewer/dist/flyfish-file-viewer-web-full.iife.js"></script>
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<script src="/static/app.js"></script>
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<script src="/static/helpers.js"></script>
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<script src="/static/batch.js"></script>
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