feat: polish media preview and text editor

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

@@ -11,7 +11,7 @@ button,input{font:inherit}button{border:0;border-radius:9px;padding:9px 13px;cur
 main{max-width:1180px;margin:26px auto;padding:0 18px}.toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:14px}.toolgroup{display:flex;align-items:center;gap:6px}.toolbar .searchbox{min-width:220px;flex:1;display:flex;align-items:center;gap:8px;padding:0 12px;border:1px solid var(--border);border-radius:10px;background:var(--surface);transition:border-color .15s,box-shadow .15s}.toolbar .searchbox:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 12%,transparent)}.toolbar .searchbox .ui-icon{width:16px;height:16px;color:var(--muted)}.toolbar .searchbox input{min-width:0;flex:1;padding:10px 0;border:0;outline:0;background:transparent;color:var(--text)}.toolbar .divider{width:1px;height:26px;background:var(--border);margin:0 2px}.toolbar .primary-action{box-shadow:0 2px 6px rgba(37,99,235,.18)}.toolbar .iconbtn{flex:0 0 auto}
 .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}.sorthead{display:inline-flex;align-items:center;gap:5px;padding:3px 5px;margin:-3px -5px;background:transparent;color:inherit;font-size:inherit;font-weight:inherit}.sorthead:hover{background:var(--surface);color:var(--text)}.sorthead span{font-size:10px;color:var(--primary);min-width:8px}.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.drop-target{background:color-mix(in srgb,var(--primary) 12%,var(--surface));box-shadow:inset 0 0 0 2px var(--primary)}.tile.drop-target{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 16%,transparent)}.side-item.drop-target{background:color-mix(in srgb,var(--primary) 12%,var(--surface2));color:var(--primary)}.dragging{opacity:.45}.gallery-nav{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.22);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center}.gallery-nav .ui-icon{width:22px;height:22px}.gallery-prev{left:16px}.gallery-next{right:16px}.gallery-count{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);padding:5px 9px;border-radius:99px;background:rgba(0,0,0,.48);color:#fff;font-size:12px}.preview-stage.media-stage{position:relative}.preview-stage video:focus{outline:2px solid var(--primary);outline-offset:2px}.media-hint{position:absolute;left:18px;top:14px;color:#aab5c5;font-size:12px;pointer-events:none}.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}
+.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}.editor-wrap{width:min(1000px,100%);height:70vh;display:grid;grid-template-columns:auto minmax(0,1fr);background:#111821;border:1px solid #273243;border-radius:10px;overflow:hidden}.editor-lines{margin:0;padding:16px 12px;text-align:right;user-select:none;color:#617086;background:#0d131b;border-right:1px solid #273243;font:13px/1.6 ui-monospace,SFMono-Regular,monospace;overflow:hidden}.editor-input{width:100%;height:100%;resize:none;border:0;outline:0;padding:16px;background:#111821;color:#dce5f2;font:13px/1.6 ui-monospace,SFMono-Regular,monospace;tab-size:2}.editor-status{display:flex;align-items:center;gap:8px;margin-right:auto}.editor-dirty{color:var(--primary);font-weight:600}.media-toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.media-toolbar label{font-size:12px;color:var(--muted)}.media-toolbar select{padding:7px 9px;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text)}
 .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{gap:6px;margin-bottom:10px}.toolbar .toolgroup{flex-wrap:wrap}.toolbar .divider{display:none}.toolbar .searchbox{order:3;flex-basis:100%;min-width:0}.toolbar .toolgroup:nth-of-type(2){flex:1}.toolbar .toolgroup:last-child{margin-left:auto}.toolbar button{padding:8px 10px}.file-row td{padding:10px 9px}.bulk{position:sticky;bottom:10px;z-index:3;padding:8px 10px;border:1px solid var(--border);border-radius:11px;background:color-mix(in srgb,var(--surface) 94%,transparent);box-shadow:var(--shadow);backdrop-filter:blur(10px);flex-wrap:wrap}.bulk .count{flex-basis:100%;margin-right:0}}
 
@@ -148,14 +148,19 @@ function previewFilesFor(p){const dir=dirOf(p),items=dir===current?lastItems:sea
 function galleryOpen(p){return openGallery(p)}
 function dirOf(p){return String(p||'').split('/').slice(0,-1).join('/')}
 function galleryMove(delta){if(!galleryFiles.length)return;galleryIndex=(galleryIndex+delta+galleryFiles.length)%galleryFiles.length;const f=galleryFiles[galleryIndex],path=f.path||(current?current+'/'+f.name:f.name);renderGallery(path)}
-function renderGallery(path){const f=galleryFiles[galleryIndex];if(!f)return;const p=path||((f.path)||((current?current+'/':'')+f.name)),n=f.name,src='/chfs/preview?file='+encodeURIComponent(p);show('<div class="preview-head"><span class="preview-title">'+esc(n)+'</span><span class="meta">'+(galleryIndex+1)+' / '+galleryFiles.length+'</span><button class="iconbtn" onclick="location.href='+JSON.stringify('/chfs/shared/'+encodeURI(p))+'" title="下载">'+svgIcon('file')+'</button><button class="iconbtn" onclick="closeModal()" title="关闭"><svg class="ui-icon" viewBox="0 0 24 24"><path d="m6 6 12 12M18 6 6 18"/></svg></button></div><div class="preview-stage"><img src="'+src+'" alt="'+esc(n)+'"><button class="gallery-nav gallery-prev" onclick="galleryMove(-1)" title="上一张"><svg class="ui-icon" viewBox="0 0 24 24"><path d="m14 6-6 6 6 6"/></svg></button><button class="gallery-nav gallery-next" onclick="galleryMove(1)" title="下一张"><svg class="ui-icon" viewBox="0 0 24 24"><path d="m10 6 6 6-6 6"/></svg></button><div class="gallery-count">'+(galleryIndex+1)+' / '+galleryFiles.length+'</div></div><div class="preview-foot"><button class="ghost" onclick="closeModal()">关闭</button></div>',true)}
+function preloadGallery(){for(const offset of [-1,1]){const f=galleryFiles[(galleryIndex+offset+galleryFiles.length)%galleryFiles.length];if(f){const img=new Image();img.src="/chfs/preview?file="+encodeURIComponent(f.path)}}}
-function mediaKeydown(e){const mediaActive=!!activeMedia&&($('modal').classList.contains('show')||$('miniPlayer'));if(mediaActive){if(e.key===' '){e.preventDefault();activeMedia.paused?activeMedia.play():activeMedia.pause()}else if(e.key==='ArrowLeft'||e.key==='ArrowRight'){e.preventDefault();activeMedia.currentTime=Math.max(0,activeMedia.currentTime+(e.key==='ArrowLeft'?-5:5))}}if($('modal').classList.contains('show')&&galleryFiles.length&&(e.key==='ArrowLeft'||e.key==='ArrowRight')){e.preventDefault();galleryMove(e.key==='ArrowLeft'?-1:1)}}
+function renderGallery(path){const f=galleryFiles[galleryIndex];if(!f)return;const p=path||((f.path)||((current?current+"/":"")+f.name)),n=f.name,src="/chfs/preview?file="+encodeURIComponent(p);preloadGallery();show('<div class="preview-head"><span class="preview-title">'+esc(n)+'</span><span class="meta">'+(galleryIndex+1)+' / '+galleryFiles.length+'</span><button class="iconbtn" onclick="location.href='+JSON.stringify('/chfs/shared/'+encodeURI(p))+'" title="下载">'+svgIcon("file")+'</button><button class="iconbtn" onclick="closeModal()" title="关闭"><svg class="ui-icon" viewBox="0 0 24 24"><path d="m6 6 12 12M18 6 6 18"/></svg></button></div><div class="preview-stage"><img src="'+src+'" alt="'+esc(n)+'"><button class="gallery-nav gallery-prev" onclick="galleryMove(-1)" title="上一张"><svg class="ui-icon" viewBox="0 0 24 24"><path d="m14 6-6 6 6 6"/></svg></button><button class="gallery-nav gallery-next" onclick="galleryMove(1)" title="下一张"><svg class="ui-icon" viewBox="0 0 24 24"><path d="m10 6 6 6-6 6"/></svg></button><div class="gallery-count">'+(galleryIndex+1)+' / '+galleryFiles.length+'</div></div><div class="preview-foot"><button class="ghost" onclick="closeModal()">关闭</button></div>',true)}
+function mediaKeydown(e){const mediaActive=!!activeMedia&&($('modal').classList.contains('show')||$('miniPlayer'));if(mediaActive){if(e.key===' '){e.preventDefault();activeMedia.paused?activeMedia.play():activeMedia.pause()}else if(e.key==='ArrowLeft'||e.key==='ArrowRight'){e.preventDefault();activeMedia.currentTime=Math.max(0,activeMedia.currentTime+(e.key==='ArrowLeft'?-5:5))}else if((e.key==='['||e.key===']')&&activeMedia.playbackRate){e.preventDefault();activeMedia.playbackRate=Math.max(.25,Math.min(2,activeMedia.playbackRate+(e.key==='['?-.25:.25)));toast("播放速度 "+activeMedia.playbackRate+"x")}}if($('modal').classList.contains('show')&&galleryFiles.length&&(e.key==='ArrowLeft'||e.key==='ArrowRight')){e.preventDefault();galleryMove(e.key==='ArrowLeft'?-1:1)}}
+function setPlaybackRate(v){if(activeMedia){activeMedia.playbackRate=Number(v);toast("播放速度 "+v+"x")}}
 addEventListener('keydown',mediaKeydown);
-function editText(p,content){show('<div class="preview-head"><span class="preview-title">编辑 · '+esc(p.split('/').pop())+'</span><button class="iconbtn" onclick="saveTextEdit('+JSON.stringify(p)+')" title="保存">保存</button><button class="iconbtn" onclick="closeModal()" title="关闭"><svg class="ui-icon" viewBox="0 0 24 24"><path d="m6 6 12 12M18 6 6 18"/></svg></button></div><div class="preview-stage" style="display:block"><textarea id="editText" style="width:100%;height:65vh;resize:none;border:1px solid var(--border);border-radius:10px;padding:16px;background:var(--surface);color:var(--text);font:13px/1.6 ui-monospace,SFMono-Regular,monospace;outline:0">'+esc(content)+'</textarea></div><div class="preview-foot"><span class="meta" style="margin-right:auto">Ctrl/Cmd + S 保存</span><button class="ghost" onclick="closeModal()">取消</button><button onclick="saveTextEdit('+JSON.stringify(p)+')">保存</button></div>',true);$('editText').focus();$('editText').addEventListener('keydown',e=>{if((e.ctrlKey||e.metaKey)&&e.key.toLowerCase()==='s'){e.preventDefault();saveTextEdit(p)}})}
+function editorLines(text){return Array.from({length:Math.max(1,text.split("\n").length)},(_,i)=>i+1).join("\n")}
-async function saveTextEdit(p){const text=$('editText')?.value;if(text===undefined)return;const parts=p.split('/'),filename=parts.pop()||'';const filepath=parts.join('/');try{await api('/chfs/updatetext',{method:'POST',headers:{'Content-Type':'application/x-www-form-urlencoded'},body:new URLSearchParams({filepath,filename,text})});toast('已保存');closeModal();refresh()}catch(e){fail(e.message)}}
+function markEditorDirty(){const el=$("editorDirty");if(el)el.textContent="未保存";window._editorDirty=true}
+function syncEditorLines(){const input=$("editText"),lines=$("editorLines");if(!input||!lines)return;lines.textContent=editorLines(input.value);lines.scrollTop=input.scrollTop}
+function editText(p,content){window._editorDirty=false;show('<div class="preview-head"><span class="preview-title">编辑 · '+esc(p.split('/').pop())+'</span><span id="editorDirty" class="meta">已保存</span><button class="iconbtn" onclick="saveTextEdit('+JSON.stringify(p)+')" title="保存">保存</button><button class="iconbtn" onclick="closeModal()" title="关闭"><svg class="ui-icon" viewBox="0 0 24 24"><path d="m6 6 12 12M18 6 6 18"/></svg></button></div><div class="preview-stage" style="display:block"><div class="editor-wrap"><pre id="editorLines" class="editor-lines">1</pre><textarea id="editText" class="editor-input" spellcheck="false" autocapitalize="off" autocomplete="off" autocorrect="off">'+esc(content)+'</textarea></div></div><div class="preview-foot"><div class="editor-status"><span class="meta">Tab 缩进 · Ctrl/Cmd + S 保存</span></div><button class="ghost" onclick="closeModal()">取消</button><button onclick="saveTextEdit('+JSON.stringify(p)+')">保存</button></div>',true);const input=$("editText");input.focus();syncEditorLines();input.addEventListener("input",()=>{markEditorDirty();syncEditorLines()});input.addEventListener("scroll",syncEditorLines);input.addEventListener("keydown",e=>{if((e.ctrlKey||e.metaKey)&&e.key.toLowerCase()==="s"){e.preventDefault();saveTextEdit(p);return}if(e.key==="Tab"){e.preventDefault();const a=input.selectionStart,b=input.selectionEnd,inputValue=input.value;if(e.shiftKey){const lineStart=inputValue.lastIndexOf("\n",a-1)+1;if(inputValue.slice(lineStart,lineStart+2)==="  "){input.setSelectionRange(lineStart,lineStart+2);document.execCommand("delete");syncEditorLines()}}else{input.setRangeText("  ",a,b,"end");markEditorDirty();syncEditorLines()}}});}
+async function saveTextEdit(p){const input=$("editText");const text=input?.value;if(text===undefined)return;const parts=p.split("/"),filename=parts.pop()||"",filepath=parts.join("/");const status=$("editorDirty");if(status)status.textContent="保存中…";try{await api("/chfs/updatetext",{method:"POST",headers:{"Content-Type":"application/x-www-form-urlencoded"},body:new URLSearchParams({filepath,filename,text})});window._editorDirty=false;if(status)status.textContent="已保存";window._previewText=text;toast("已保存");}catch(e){if(status)status.textContent="保存失败";fail(e.message)}}
 async function togglePiP(){if(!activeMedia||!('pictureInPictureEnabled' in document)||!document.pictureInPictureEnabled)return fail('当前浏览器不支持画中画');try{if(document.pictureInPictureElement)await document.exitPictureInPicture();else if(activeMedia.requestPictureInPicture)await activeMedia.requestPictureInPicture()}catch(e){fail('无法进入画中画')} }
 function startMiniPlayer(url,name){let host=$('miniPlayer');if(!host){host=document.createElement('div');host.id='miniPlayer';host.style='position:fixed;right:18px;bottom:18px;z-index:30;width:min(380px,calc(100vw - 36px));padding:12px 14px;border:1px solid var(--border);border-radius:14px;background:var(--surface);box-shadow:var(--shadow);display:grid;gap:8px';document.body.appendChild(host)}host.innerHTML='<div style="display:flex;align-items:center;gap:8px"><span class="preview-title">'+esc(name)+'</span><button class="iconbtn" style="width:30px;height:30px" onclick="document.getElementById(\'miniPlayer\')?.remove();activeMedia=null" title="关闭"><svg class="ui-icon" viewBox="0 0 24 24"><path d="m6 6 12 12M18 6 6 18"/></svg></button></div><audio controls autoplay style="width:100%"><source src="'+url+'"></audio>';activeMedia=host.querySelector('audio');closeModal();activeMedia?.focus()}
-async function previewFile(p){const n=p.split('/').pop(),ext=n.toLowerCase().split('.').pop(),url='/chfs/preview?file='+encodeURIComponent(p),media=['mp4','webm','mov','mkv'].includes(ext),audio=['mp3','wav','flac','m4a','ogg'].includes(ext),image=['png','jpg','jpeg','gif','webp','bmp','svg'].includes(ext),pdf=ext==='pdf',text=['txt','md','markdown','json','yaml','yml','xml','csv','log','js','ts','jsx','tsx','css','scss','html','htm','go','rs','py','java','c','cpp','h','hpp','sh','sql','toml','ini','conf'].includes(ext);if(image){return openGallery(p)}let content='';if(media){show('<div class="preview-head"><span class="preview-title">'+esc(n)+'</span><button class="ghost" onclick="togglePiP()" title="画中画">画中画</button><button class="iconbtn" onclick="location.href='+JSON.stringify('/chfs/shared/'+encodeURI(p))+'" title="下载">'+svgIcon('file')+'</button><button class="iconbtn" onclick="closeModal()" title="关闭"><svg class="ui-icon" viewBox="0 0 24 24"><path d="m6 6 12 12M18 6 6 18"/></svg></button></div><div class="preview-stage media-stage"><video controls autoplay tabindex="0"><source src="'+url+'"></video><span class="media-hint">空格暂停 · ← / → 快进 5 秒</span></div><div class="preview-foot"><button class="ghost" onclick="closeModal()">关闭</button></div>',true);activeMedia=$('.preview-stage video');activeMedia?.focus();return}if(audio){startMiniPlayer(url,n);return}if(pdf){show('<div class="preview-head"><span class="preview-title">'+esc(n)+'</span><button class="iconbtn" onclick="location.href='+JSON.stringify('/chfs/shared/'+encodeURI(p))+'" title="下载">'+svgIcon('file')+'</button><button class="iconbtn" onclick="closeModal()" title="关闭"><svg class="ui-icon" viewBox="0 0 24 24"><path d="m6 6 12 12M18 6 6 18"/></svg></button></div><div class="preview-stage"><iframe src="'+url+'"></iframe></div><div class="preview-foot"><button class="ghost" onclick="closeModal()">关闭</button></div>',true);return}if(text){try{const r=await fetch(url);if(!r.ok)throw Error();content=await r.text();const targetFile=searchMode?searchItems.find(f=>searchPath(f)===p):lastItems.find(f=>(current?current+'/':'')+f.name===p),canEdit=String(targetFile?.mask||currentMask).includes('W');show('<div class="preview-head"><span class="preview-title">'+esc(n)+'</span>'+(canEdit?'<button class="ghost" onclick="editText('+JSON.stringify(p)+',window._previewText)" title="编辑">编辑</button>':'')+'<button class="iconbtn" onclick="location.href='+JSON.stringify('/chfs/shared/'+encodeURI(p))+'" title="下载">'+svgIcon('file')+'</button><button class="iconbtn" onclick="closeModal()" title="关闭"><svg class="ui-icon" viewBox="0 0 24 24"><path d="m6 6 12 12M18 6 6 18"/></svg></button></div><div class="preview-stage"><pre class="preview-text">'+esc(content)+'</pre></div><div class="preview-foot"><button class="ghost" onclick="closeModal()">关闭</button></div>',true);window._previewText=content}catch{show('<div class="preview-empty">无法读取文本内容</div>')}}else show('<div class="preview-empty">暂不支持该文件类型的在线预览</div>')}
+async function previewFile(p){const n=p.split('/').pop(),ext=n.toLowerCase().split('.').pop(),url='/chfs/preview?file='+encodeURIComponent(p),media=['mp4','webm','mov','mkv'].includes(ext),audio=['mp3','wav','flac','m4a','ogg'].includes(ext),image=['png','jpg','jpeg','gif','webp','bmp','svg'].includes(ext),pdf=ext==='pdf',text=['txt','md','markdown','json','yaml','yml','xml','csv','log','js','ts','jsx','tsx','css','scss','html','htm','go','rs','py','java','c','cpp','h','hpp','sh','sql','toml','ini','conf'].includes(ext);if(image){return openGallery(p)}let content='';if(media){show('<div class="preview-head"><span class="preview-title">'+esc(n)+'</span><div class="media-toolbar"><label>速度</label><select onchange="setPlaybackRate(this.value)"><option value="0.5">0.5x</option><option value="0.75">0.75x</option><option value="1" selected>1x</option><option value="1.25">1.25x</option><option value="1.5">1.5x</option><option value="2">2x</option></select></div><button class="ghost" onclick="togglePiP()" title="画中画">画中画</button><button class="iconbtn" onclick="location.href='+JSON.stringify('/chfs/shared/'+encodeURI(p))+'" title="下载">'+svgIcon('file')+'</button><button class="iconbtn" onclick="closeModal()" title="关闭"><svg class="ui-icon" viewBox="0 0 24 24"><path d="m6 6 12 12M18 6 6 18"/></svg></button></div><div class="preview-stage media-stage"><video controls autoplay tabindex="0"><source src="'+url+'"></video><span class="media-hint">空格暂停 · ← / → 快进 5 秒</span></div><div class="preview-foot"><button class="ghost" onclick="closeModal()">关闭</button></div>',true);activeMedia=$('.preview-stage video');activeMedia?.focus();return}if(audio){startMiniPlayer(url,n);return}if(pdf){show('<div class="preview-head"><span class="preview-title">'+esc(n)+'</span><button class="iconbtn" onclick="location.href='+JSON.stringify('/chfs/shared/'+encodeURI(p))+'" title="下载">'+svgIcon('file')+'</button><button class="iconbtn" onclick="closeModal()" title="关闭"><svg class="ui-icon" viewBox="0 0 24 24"><path d="m6 6 12 12M18 6 6 18"/></svg></button></div><div class="preview-stage"><iframe src="'+url+'"></iframe></div><div class="preview-foot"><button class="ghost" onclick="closeModal()">关闭</button></div>',true);return}if(text){try{const r=await fetch(url);if(!r.ok)throw Error();content=await r.text();const targetFile=searchMode?searchItems.find(f=>searchPath(f)===p):lastItems.find(f=>(current?current+'/':'')+f.name===p),canEdit=String(targetFile?.mask||currentMask).includes('W');show('<div class="preview-head"><span class="preview-title">'+esc(n)+'</span>'+(canEdit?'<button class="ghost" onclick="editText('+JSON.stringify(p)+',window._previewText)" title="编辑">编辑</button>':'')+'<button class="iconbtn" onclick="location.href='+JSON.stringify('/chfs/shared/'+encodeURI(p))+'" title="下载">'+svgIcon('file')+'</button><button class="iconbtn" onclick="closeModal()" title="关闭"><svg class="ui-icon" viewBox="0 0 24 24"><path d="m6 6 12 12M18 6 6 18"/></svg></button></div><div class="preview-stage"><pre class="preview-text">'+esc(content)+'</pre></div><div class="preview-foot"><button class="ghost" onclick="closeModal()">关闭</button></div>',true);window._previewText=content}catch{show('<div class="preview-empty">无法读取文本内容</div>')}}else show('<div class="preview-empty">暂不支持该文件类型的在线预览</div>')}
 
 function changePassword(){show('<h2>修改密码</h2><div class="field"><input id="cp" type="password" placeholder="当前密码"><input id="npw" type="password" placeholder="新密码"></div><div class="row"><button class="ghost" onclick="closeModal()">取消</button><button onclick="savePassword()">保存</button></div>')}
 async function savePassword(){try{await api("/chfs/password",{method:"POST",headers:{"Content-Type":"application/json"},body:JSON.stringify({currentPassword:$("cp").value,password:$("npw").value})});toast("密码已更新");closeModal()}catch(e){fail(e.message)}}