feat: add file manager keyboard navigation

chfs-ng/internal/api/web/index.html

@@ -10,7 +10,7 @@
 button,input{font:inherit}button{border:0;border-radius:9px;padding:9px 13px;cursor:pointer;background:#2563eb;color:#fff}button.ghost{background:#eef2f7;color:#334155}button.danger{background:#dc2626}
 main{max-width:1180px;margin:26px auto;padding:0 18px}.toolbar{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:18px}.toolbar input{min-width:220px;flex:1;padding:10px 12px;border:1px solid #d9dfeb;border-radius:9px;background:#fff}
 .card{background:#fff;border:1px solid #e4e8f0;border-radius:14px;overflow:hidden;box-shadow:0 4px 18px rgba(20,30,50,.04)}
-table{width:100%;border-collapse:separate;border-spacing:0}th,td{text-align:left;padding:12px 15px;border-bottom:1px solid #edf0f5}th{font-size:12px;color:#7b8798;background:#fafbfc;font-weight:650}tr:last-child td{border-bottom:0}.name{display:flex;align-items:center;gap:10px;min-width:0}.name a{color:#172033;text-decoration:none;font-weight:550;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.meta{color:#8792a5;font-size:13px}.actions{display:flex;gap:7px;justify-content:flex-end;opacity:.55;transition:opacity .15s}.file-row:hover .actions,.file-row.selected .actions{opacity:1}.file-row{transition:background .12s}.file-row:hover{background:var(--surface2)}.file-row.selected{background:color-mix(in srgb,var(--primary) 7%,var(--surface))}.file-row .file-kind{width:30px;height:30px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;background:var(--surface2);color:var(--muted);flex:0 0 auto}.file-row .file-kind .ui-icon{width:18px;height:18px}.file-row .size-cell,.file-row .time-cell{white-space:nowrap;color:var(--muted);font-size:12px}.file-row .perm-cell{white-space:nowrap}.perm-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--border);margin-right:5px}.perm-dot.read{background:var(--muted)}.perm-dot.write{background:var(--primary)}.perm-dot.delete{background:var(--danger)}.empty{padding:45px;text-align:center;color:#8a94a6}
+table{width:100%;border-collapse:separate;border-spacing:0}th,td{text-align:left;padding:12px 15px;border-bottom:1px solid #edf0f5}th{font-size:12px;color:#7b8798;background:#fafbfc;font-weight:650}tr:last-child td{border-bottom:0}.name{display:flex;align-items:center;gap:10px;min-width:0}.name a{color:#172033;text-decoration:none;font-weight:550;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.meta{color:#8792a5;font-size:13px}.actions{display:flex;gap:7px;justify-content:flex-end;opacity:.55;transition:opacity .15s}.file-row:hover .actions,.file-row.selected .actions{opacity:1}.file-row{transition:background .12s}.file-row:hover{background:var(--surface2)}.file-row.selected{background:color-mix(in srgb,var(--primary) 7%,var(--surface))}.file-row:focus-within{box-shadow:inset 2px 0 0 var(--primary)}.tile:focus-visible,.file-row:focus-within{outline:2px solid color-mix(in srgb,var(--primary) 65%,transparent);outline-offset:-2px}.file-row .file-kind{width:30px;height:30px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;background:var(--surface2);color:var(--muted);flex:0 0 auto}.file-row .file-kind .ui-icon{width:18px;height:18px}.file-row .size-cell,.file-row .time-cell{white-space:nowrap;color:var(--muted);font-size:12px}.file-row .perm-cell{white-space:nowrap}.perm-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--border);margin-right:5px}.perm-dot.read{background:var(--muted)}.perm-dot.write{background:var(--primary)}.perm-dot.delete{background:var(--danger)}.empty{padding:45px;text-align:center;color:#8a94a6}
 .modal{position:fixed;inset:0;background:rgba(15,23,42,.5);display:none;align-items:center;justify-content:center;padding:18px;z-index:4;backdrop-filter:blur(4px)}.modal.show{display:flex}.dialog{width:min(480px,100%);max-height:calc(100vh - 36px);overflow:auto;background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:22px;box-shadow:0 24px 80px rgba(0,0,0,.18)}.dialog.preview-dialog{width:min(1000px,100%);padding:0;overflow:hidden}.dialog h2{margin-top:0}.field{display:grid;gap:7px;margin:13px 0}.field input{padding:10px 11px;border:1px solid #d7ddea;border-radius:9px}.row{display:flex;gap:9px;justify-content:flex-end;margin-top:18px}.preview-head{display:flex;align-items:center;gap:12px;padding:14px 16px;border-bottom:1px solid var(--border)}.preview-title{font-weight:650;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-right:auto}.preview-stage{min-height:180px;max-height:calc(100vh - 150px);overflow:auto;background:#0b0f14;padding:24px;display:flex;align-items:center;justify-content:center}.preview-stage img{max-width:100%;max-height:70vh;object-fit:contain}.preview-stage video{width:min(920px,100%);max-height:70vh;border-radius:10px}.preview-stage audio{width:min(720px,100%)}.preview-stage iframe{width:100%;height:70vh;border:0;background:#fff}.preview-text{width:min(920px,100%);max-height:70vh;overflow:auto;text-align:left;white-space:pre-wrap;background:#111821;color:#dce5f2;padding:18px;border-radius:10px;font:13px/1.6 ui-monospace,SFMono-Regular,monospace}.preview-empty{color:#aab5c5;text-align:center}.preview-foot{padding:12px 16px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}
 .login{max-width:390px;margin:10vh auto}.notice{padding:12px 14px;background:#eff6ff;border-radius:10px;color:#315b9b;margin-bottom:14px}
 @media(max-width:700px){.size-col,.time-col,.perm-col,.size-cell,.time-cell,.perm-cell{display:none}.top{padding:0 13px}.path{max-width:40vw}.actions button{padding:7px 9px}.toolbar input{min-width:160px}.file-row td{padding:10px 9px}}
@@ -60,6 +60,7 @@ function render(items){lastItems=items;selected=new Set([...selected].filter(p=>
 function renderList(items){const body=$("files");body.innerHTML=items.map(f=>{const p=current?current+"/"+f.name:f.name,canRead=(f.mask||"").includes("R"),canWrite=(f.mask||"").includes("W"),canDelete=(f.mask||"").includes("D"),selectedNow=selected.has(p);const perms='<span class="perm-dot '+(canRead?'read':'')+'"></span><span class="perm-dot '+(canWrite?'write':'')+'"></span><span class="perm-dot '+(canDelete?'delete':'')+'"></span>';return '<tr class="file-row '+(selectedNow?'selected':'')+'"><td><input class="selectbox" type="checkbox" '+(selectedNow?"checked":"")+' onchange="selectItem('+JSON.stringify(p)+',this.checked)"></td><td><div class="name"><span class="file-kind">'+iconFor(f)+'</span>'+(f.dir&&canRead?'<a href="#" onclick="openDir('+JSON.stringify(p)+');return false">'+esc(f.name)+'</a>':(canRead?'<a href="#" onclick="previewFile('+JSON.stringify(p)+');return false">'+esc(f.name)+'</a>':'<span>'+esc(f.name)+'</span>'))+'</div></td><td class="size-cell">'+(f.dir?"—":fmt(f.size))+'</td><td class="time-cell">'+esc(f.modified||"")+'</td><td class="perm-cell">'+perms+'</td><td><div class="actions"><button class="iconbtn" onclick="itemMenu(event,'+JSON.stringify(p)+')" title="更多操作"><svg class="ui-icon" viewBox="0 0 24 24"><circle cx="5" cy="12" r="1"/><circle cx="12" cy="12" r="1"/><circle cx="19" cy="12" r="1"/></svg></button></div></td></tr>'}).join("")||'<tr><td colspan="6" class="empty">这里还没有文件</td></tr>'}
 function renderGrid(items){$("grid").innerHTML=items.map(f=>{const p=current?current+"/"+f.name:f.name,canRead=(f.mask||"").includes("R"),type=fileType(f),selectedNow=selected.has(p);let thumb=iconFor(f);if(type==="image"&&canRead)thumb='<img src="/chfs/preview?file='+encodeURIComponent(p)+'" loading="lazy" alt="">';const tileClass=(f.dir?'folder-tile ':'')+(['video','audio'].includes(type)?'media-tile':'');const meta=f.dir?'文件夹':fmt(f.size);return '<div class="tile '+tileClass+(selectedNow?' selected':'')+'" onclick="'+(f.dir&&canRead?'openDir('+JSON.stringify(p)+')':'toggleTile('+JSON.stringify(p)+')')+'" oncontextmenu="itemMenu(event,'+JSON.stringify(p)+');return false"><input class="selectbox tile-check" type="checkbox" '+(selectedNow?'checked':'')+' onclick="event.stopPropagation();selectItem('+JSON.stringify(p)+',this.checked)"><button class="iconbtn tile-action" onclick="event.stopPropagation();itemMenu(event,'+JSON.stringify(p)+')" title="更多操作"><svg class="ui-icon" viewBox="0 0 24 24"><circle cx="5" cy="12" r="1"/><circle cx="12" cy="12" r="1"/><circle cx="19" cy="12" r="1"/></svg></button><div class="thumb">'+thumb+'</div><div class="tile-title">'+iconFor(f)+'<div class="file-name">'+esc(f.name)+'</div></div><div class="tile-meta"><span>'+meta+'</span>'+(f.modified?'<span>'+esc(f.modified)+'</span>':'')+'</div></div>'}).join('')||'<div class="empty">这里还没有文件</div>'}
 function toggleTile(p){selectItem(p,!selected.has(p))}
+function openSelected(){if(selected.size!==1)return;const p=[...selected][0],f=lastItems.find(x=>(current?current+"/":"")+x.name===p);if(!f)return;if(f.dir&&(f.mask||"").includes("R"))openDir(p);else if((f.mask||"").includes("R"))previewFile(p)}
 function toggleAll(v){lastItems.forEach(f=>{const p=current?current+"/"+f.name:f.name;if(v)selected.add(p);else selected.delete(p)});render(lastItems)}
 function clearSelection(){selected.clear();updateSelection();renderGrid(lastItems);renderList(lastItems)}
 function updateSelection(){const n=selected.size;$("bulk").classList.toggle("show",n>0);$("selectedCount").textContent=n?`已选择 ${n} 项`:"";$("grid").querySelectorAll('.tile').forEach((el,i)=>{const f=lastItems[i];if(f)el.classList.toggle('selected',selected.has(current?current+'/'+f.name:f.name))})}
@@ -108,6 +109,8 @@ async function login(){try{await fetch("/chfs/session",{method:"POST",headers:{"
 async function logout(){await fetch("/chfs/session",{method:"DELETE"});location.reload()}
 function toast(message,error=false){const host=$("toastHost"),el=document.createElement("div");el.className='toast'+(error?' error':'');el.textContent=message;host.appendChild(el);setTimeout(()=>el.remove(),2800)}
 function fail(message){toast(message,true)}
+function keyboardNavigation(e){const tag=(e.target?.tagName||"").toLowerCase();if(tag==="input"||tag==="textarea"||tag==="select"||tag==="button"||tag==="a"||e.target?.isContentEditable)return;if(e.key==="Escape"){if($("modal").classList.contains("show"))closeModal();else closeContext();return}if((e.ctrlKey||e.metaKey)&&e.key.toLowerCase()==="a"){e.preventDefault();toggleAll(true);return}if(e.key==="Enter"){e.preventDefault();openSelected();return}if(e.key==="Delete"&&selected.size){e.preventDefault();bulkDelete();return}if(e.key==="Backspace"&&current){e.preventDefault();goUp()}}
+addEventListener("keydown",keyboardNavigation)
 function show(html,preview=false){$("dialog").innerHTML=html;$("dialog").classList.toggle("preview-dialog",preview);$("modal").classList.add("show")}function closeModal(){$("modal").classList.remove("show");$("dialog").classList.remove("preview-dialog")}
 function ask(title,label,value="",type="text"){return new Promise(resolve=>{show('<h2>'+esc(title)+'</h2><div class="field"><label>'+esc(label)+'</label><input id="askInput" type="'+type+'" value="'+esc(value)+'"></div><div class="row"><button class="ghost" onclick="closeModal();window._askResolve(null)">取消</button><button onclick="window._askResolve($("askInput").value)">确定</button></div>');window._askResolve=v=>{closeModal();resolve(v)}})}
 function confirmBox(title,message){return new Promise(resolve=>{show('<h2>'+esc(title)+'</h2><div class="notice">'+esc(message)+'</div><div class="row"><button class="ghost" onclick="closeModal();window._confirmResolve(false)">取消</button><button class="danger" onclick="closeModal();window._confirmResolve(true)">确定</button></div>');window._confirmResolve=v=>resolve(v)})}