Tabbed UI, browse caching, and bottom mini player

- Convert stacked sections to tabbed interface (Player, Browser, Actions, Scripts, Callbacks) with localStorage persistence
- Add in-memory directory listing cache (5-min TTL) with nocache bypass for refresh
- Defer stat()/duration calls to paginated items only for faster browse
- Move mini player from top to bottom with footer padding fix
- Always show scrollbar to prevent layout shift between tabs
- Add tab localization keys (en/ru)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

media_server/routes/browser.py

@@ -218,6 +218,7 @@ async def browse(
     path: str = Query(default="", description="Path relative to folder root"),
     offset: int = Query(default=0, ge=0, description="Pagination offset"),
     limit: int = Query(default=100, ge=1, le=1000, description="Pagination limit"),
+    nocache: bool = Query(default=False, description="Bypass directory cache"),
     _: str = Depends(verify_token),
 ):
     """Browse a directory and list files/folders.
@@ -244,6 +245,7 @@ async def browse(
             path=decoded_path,
             offset=offset,
             limit=limit,
+            nocache=nocache,
         )
 
         return result

media_server/services/browser_service.py

@@ -2,12 +2,17 @@
 
 import logging
 import os
+import time
 from datetime import datetime
 from pathlib import Path
 from typing import Optional
 
 from ..config import settings
 
+# Directory listing cache: {resolved_path_str: (timestamp, all_items)}
+_dir_cache: dict[str, tuple[float, list[dict]]] = {}
+DIR_CACHE_TTL = 300  # 5 minutes
+
 try:
     from mutagen import File as MutagenFile
     HAS_MUTAGEN = True
@@ -141,6 +146,7 @@ class BrowserService:
         path: str = "",
         offset: int = 0,
         limit: int = 100,
+        nocache: bool = False,
     ) -> dict:
         """Browse a directory and return items with metadata.
 
@@ -189,49 +195,66 @@ class BrowserService:
             parent_relative = full_path.parent.relative_to(base_path)
             parent_path = "/" + str(parent_relative).replace("\\", "/") if str(parent_relative) != "." else "/"
 
-        # List directory contents
+        # List directory contents (with caching)
         try:
-            all_items = []
-            for item in full_path.iterdir():
-                # Skip hidden files (starting with .)
-                if item.name.startswith("."):
-                    continue
+            cache_key = str(full_path)
+            now = time.monotonic()
 
-                # Get file type
-                file_type = BrowserService.get_file_type(item)
+            # Check cache
+            if not nocache and cache_key in _dir_cache:
+                cached_time, cached_items = _dir_cache[cache_key]
+                if now - cached_time < DIR_CACHE_TTL:
+                    all_items = cached_items
+                else:
+                    del _dir_cache[cache_key]
+                    all_items = None
+            else:
+                all_items = None
 
-                # Skip non-media files (but include folders)
-                if file_type == "other" and not item.is_dir():
-                    continue
+            # Enumerate directory if not cached
+            if all_items is None:
+                all_items = []
+                for item in full_path.iterdir():
+                    if item.name.startswith("."):
+                        continue
 
-                # Get file info
-                try:
-                    stat = item.stat()
-                    size = stat.st_size if item.is_file() else None
-                    modified = datetime.fromtimestamp(stat.st_mtime).isoformat()
-                except (OSError, PermissionError):
-                    size = None
-                    modified = None
+                    is_dir = item.is_dir()
+                    if is_dir:
+                        file_type = "folder"
+                    else:
+                        suffix = item.suffix.lower()
+                        if suffix in AUDIO_EXTENSIONS:
+                            file_type = "audio"
+                        elif suffix in VIDEO_EXTENSIONS:
+                            file_type = "video"
+                        else:
+                            continue
 
-                all_items.append({
-                    "name": item.name,
-                    "type": file_type,
-                    "size": size,
-                    "modified": modified,
-                    "is_media": file_type in ("audio", "video"),
-                })
+                    all_items.append({
+                        "name": item.name,
+                        "type": file_type,
+                        "is_media": file_type in ("audio", "video"),
+                    })
 
-            # Sort: folders first, then by name
-            all_items.sort(key=lambda x: (x["type"] != "folder", x["name"].lower()))
+                all_items.sort(key=lambda x: (x["type"] != "folder", x["name"].lower()))
+                _dir_cache[cache_key] = (now, all_items)
 
             # Apply pagination
             total = len(all_items)
             items = all_items[offset:offset + limit]
 
-            # Extract duration for media files in the current page
+            # Fetch stat + duration only for items on the current page
             for item in items:
+                item_path = full_path / item["name"]
+                try:
+                    stat = item_path.stat()
+                    item["size"] = stat.st_size if item["type"] != "folder" else None
+                    item["modified"] = datetime.fromtimestamp(stat.st_mtime).isoformat()
+                except (OSError, PermissionError):
+                    item["size"] = None
+                    item["modified"] = None
+
                 if item["is_media"]:
-                    item_path = full_path / item["name"]
                     item["duration"] = BrowserService.get_duration(item_path)
                 else:
                     item["duration"] = None

media_server/static/css/styles.css

@@ -30,6 +30,10 @@
             box-sizing: border-box;
         }
 
+        html {
+            overflow-y: scroll;
+        }
+
         body {
             font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
             background: var(--bg-primary);
@@ -144,6 +148,72 @@
             color: var(--text-primary);
         }
 
+        /* Tab Bar */
+        .tab-bar {
+            display: flex;
+            gap: 0.25rem;
+            margin-bottom: 1.5rem;
+            padding: 0.25rem;
+            background: var(--bg-secondary);
+            border-radius: 10px;
+            border: 1px solid var(--border);
+        }
+
+        .tab-btn {
+            flex: 1;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            gap: 0.4rem;
+            padding: 0.6rem 0.5rem;
+            background: transparent;
+            border: none;
+            border-radius: 8px;
+            color: var(--text-muted);
+            font-size: 0.8rem;
+            font-weight: 500;
+            cursor: pointer;
+            transition: all 0.2s;
+            width: auto;
+            height: auto;
+        }
+
+        .tab-btn:hover {
+            color: var(--text-primary);
+            background: var(--bg-tertiary) !important;
+            transform: none !important;
+        }
+
+        .tab-btn.active {
+            color: var(--accent);
+            background: var(--bg-tertiary);
+            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
+        }
+
+        .tab-btn svg {
+            width: 16px;
+            height: 16px;
+            flex-shrink: 0;
+        }
+
+        [data-tab-content] {
+            display: none;
+        }
+
+        [data-tab-content].active {
+            display: block;
+        }
+
+        @media (max-width: 600px) {
+            .tab-btn span {
+                display: none;
+            }
+
+            .tab-btn {
+                padding: 0.6rem;
+            }
+        }
+
         .player-container {
             background: var(--bg-secondary);
             border-radius: 12px;
@@ -341,7 +411,6 @@
             background: var(--bg-secondary);
             border-radius: 12px;
             padding: 2rem;
-            margin-top: 2rem;
             box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
         }
 
@@ -407,7 +476,6 @@
             background: var(--bg-secondary);
             border-radius: 12px;
             padding: 2rem;
-            margin-top: 2rem;
             box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
         }
 
@@ -862,11 +930,11 @@
         /* Mini Player (Sticky) */
         .mini-player {
             position: fixed;
-            top: 0;
+            bottom: 0;
             left: 0;
             right: 0;
             background: var(--bg-secondary);
-            border-bottom: 1px solid var(--border);
+            border-top: 1px solid var(--border);
             padding: 0.75rem 1rem;
             display: flex;
             align-items: center;
@@ -874,11 +942,11 @@
             z-index: 1000;
             transform: translateY(0);
             transition: transform 0.3s ease-in-out, opacity 0.3s ease-in-out;
-            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
+            box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.3);
         }
 
         .mini-player.hidden {
-            transform: translateY(-100%);
+            transform: translateY(100%);
             opacity: 0;
             pointer-events: none;
         }
@@ -1087,6 +1155,11 @@
             border-top: 1px solid var(--border);
             color: var(--text-secondary);
             font-size: 0.875rem;
+            transition: padding-bottom 0.3s ease-in-out;
+        }
+
+        body.mini-player-visible footer {
+            padding-bottom: 70px;
         }
 
         footer a {
@@ -1113,7 +1186,6 @@
     background: var(--bg-secondary);
     border-radius: 12px;
     padding: 2rem;
-    margin-top: 2rem;
     box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
 }
 

media_server/static/index.html

@@ -83,7 +83,31 @@
             </div>
         </header>
 
-        <div class="player-container">
+        <!-- Tab Bar -->
+        <div class="tab-bar" id="tabBar">
+            <button class="tab-btn active" data-tab="player" onclick="switchTab('player')">
+                <svg viewBox="0 0 24 24" width="16" height="16"><path fill="currentColor" d="M12 3v10.55c-.59-.34-1.27-.55-2-.55-2.21 0-4 1.79-4 4s1.79 4 4 4 4-1.79 4-4V7h4V3h-6z"/></svg>
+                <span data-i18n="tab.player">Player</span>
+            </button>
+            <button class="tab-btn" data-tab="browser" onclick="switchTab('browser')">
+                <svg viewBox="0 0 24 24" width="16" height="16"><path fill="currentColor" d="M10 4H4c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h16c1.1 0 2-.9 2-2V8c0-1.1-.9-2-2-2h-8l-2-2z"/></svg>
+                <span data-i18n="tab.browser">Browser</span>
+            </button>
+            <button class="tab-btn" data-tab="quick-actions" onclick="switchTab('quick-actions')">
+                <svg viewBox="0 0 24 24" width="16" height="16"><path fill="currentColor" d="M7 2v11h3v9l7-12h-4l4-8z"/></svg>
+                <span data-i18n="tab.quick_actions">Actions</span>
+            </button>
+            <button class="tab-btn" data-tab="scripts" onclick="switchTab('scripts')">
+                <svg viewBox="0 0 24 24" width="16" height="16"><path fill="currentColor" d="M9.4 16.6L4.8 12l4.6-4.6L8 6l-6 6 6 6 1.4-1.4zm5.2 0l4.6-4.6-4.6-4.6L16 6l6 6-6 6-1.4-1.4z"/></svg>
+                <span data-i18n="tab.scripts">Scripts</span>
+            </button>
+            <button class="tab-btn" data-tab="callbacks" onclick="switchTab('callbacks')">
+                <svg viewBox="0 0 24 24" width="16" height="16"><path fill="currentColor" d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-2 15l-5-5 1.41-1.41L10 14.17l7.59-7.59L19 8l-9 9z"/></svg>
+                <span data-i18n="tab.callbacks">Callbacks</span>
+            </button>
+        </div>
+
+        <div class="player-container" data-tab-content="player">
             <div class="album-art-container">
                 <img id="album-art" src="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 300'%3E%3Crect fill='%23282828' width='300' height='300'/%3E%3Cpath fill='%236a6a6a' d='M150 80c-38.66 0-70 31.34-70 70s31.34 70 70 70 70-31.34 70-70-31.34-70-70-70zm0 20c27.614 0 50 22.386 50 50s-22.386 50-50 50-50-22.386-50-50 22.386-50 50-50zm0 30a20 20 0 100 40 20 20 0 000-40z'/%3E%3C/svg%3E" alt="Album Art">
             </div>
@@ -144,7 +168,7 @@
         </div>
 
         <!-- Media Browser Section -->
-        <div class="browser-container">
+        <div class="browser-container" data-tab-content="browser" >
             <h2 data-i18n="browser.title">Media Browser</h2>
 
             <!-- Breadcrumb Navigation -->
@@ -203,8 +227,8 @@
             </div>
         </div>
 
-        <!-- Scripts Section -->
-        <div class="scripts-container" id="scripts-container" style="display: none;">
+        <!-- Scripts Section (Quick Actions) -->
+        <div class="scripts-container" id="scripts-container" data-tab-content="quick-actions" >
             <h2 data-i18n="scripts.quick_actions">Quick Actions</h2>
             <div class="scripts-grid" id="scripts-grid">
                 <div class="scripts-empty" data-i18n="scripts.no_scripts">No scripts configured</div>
@@ -212,7 +236,7 @@
         </div>
 
         <!-- Script Management Section -->
-        <div class="script-management">
+        <div class="script-management" data-tab-content="scripts" >
             <div class="script-management-header">
                 <h2 data-i18n="scripts.management">Script Management</h2>
                 <button class="add-script-btn" onclick="showAddScriptDialog()" data-i18n="scripts.add">+ Add</button>
@@ -236,7 +260,7 @@
         </div>
 
         <!-- Callback Management Section -->
-        <div class="script-management">
+        <div class="script-management" id="callbacksSection" data-tab-content="callbacks" >
             <div class="script-management-header">
                 <h2 data-i18n="callbacks.management">Callback Management</h2>
                 <button class="add-script-btn" onclick="showAddCallbackDialog()" data-i18n="callbacks.add">+ Add</button>

media_server/static/js/app.js

@@ -1,3 +1,52 @@
+        // Tab management
+        let activeTab = 'player';
+
+        function setMiniPlayerVisible(visible) {
+            const miniPlayer = document.getElementById('mini-player');
+            if (visible) {
+                miniPlayer.classList.remove('hidden');
+                document.body.classList.add('mini-player-visible');
+            } else {
+                miniPlayer.classList.add('hidden');
+                document.body.classList.remove('mini-player-visible');
+            }
+        }
+
+        function switchTab(tabName) {
+            activeTab = tabName;
+
+            // Hide all tab content
+            document.querySelectorAll('[data-tab-content]').forEach(el => {
+                el.classList.remove('active');
+                el.style.display = '';
+            });
+
+            // Show selected tab content
+            const target = document.querySelector(`[data-tab-content="${tabName}"]`);
+            if (target) {
+                target.classList.add('active');
+            }
+
+            // Update tab buttons
+            document.querySelectorAll('.tab-btn').forEach(btn => btn.classList.remove('active'));
+            const activeBtn = document.querySelector(`.tab-btn[data-tab="${tabName}"]`);
+            if (activeBtn) activeBtn.classList.add('active');
+
+            // Save to localStorage
+            localStorage.setItem('activeTab', tabName);
+
+            // Mini-player: show when not on player tab
+            if (tabName !== 'player') {
+                setMiniPlayerVisible(true);
+            } else {
+                // Restore scroll-based behavior: check if player is in view
+                const playerContainer = document.querySelector('.player-container');
+                const rect = playerContainer.getBoundingClientRect();
+                const inView = rect.top < window.innerHeight && rect.bottom > 0;
+                setMiniPlayerVisible(!inView);
+            }
+        }
+
         // Theme management
         function initTheme() {
             const savedTheme = localStorage.getItem('theme') || 'dark';
@@ -259,6 +308,10 @@
                 setTimeout(() => { isUserAdjustingVolume = false; }, 500);
             });
 
+            // Restore saved tab
+            const savedTab = localStorage.getItem('activeTab') || 'player';
+            switchTab(savedTab);
+
             // Mini Player: Intersection Observer to show/hide when main player scrolls out of view
             const playerContainer = document.querySelector('.player-container');
             const miniPlayer = document.getElementById('mini-player');
@@ -271,13 +324,10 @@
 
             const observerCallback = (entries) => {
                 entries.forEach(entry => {
-                    if (entry.isIntersecting) {
-                        // Main player is visible - hide mini player
-                        miniPlayer.classList.add('hidden');
-                    } else {
-                        // Main player is scrolled out of view - show mini player
-                        miniPlayer.classList.remove('hidden');
-                    }
+                    // Only use scroll-based logic when on the player tab
+                    if (activeTab !== 'player') return;
+
+                    setMiniPlayerVisible(!entry.isIntersecting);
                 });
             };
 
@@ -738,11 +788,10 @@
             const grid = document.getElementById('scripts-grid');
 
             if (scripts.length === 0) {
-                container.style.display = 'none';
+                grid.innerHTML = `<div class="scripts-empty">${t('scripts.no_scripts')}</div>`;
                 return;
             }
 
-            container.style.display = 'block';
             grid.innerHTML = '';
 
             scripts.forEach(script => {
@@ -1500,7 +1549,7 @@ function showRootFolders() {
     });
 }
 
-async function browsePath(folderId, path, offset = 0) {
+async function browsePath(folderId, path, offset = 0, nocache = false) {
     try {
         const token = localStorage.getItem('media_server_token');
         if (!token) {
@@ -1514,8 +1563,10 @@ async function browsePath(folderId, path, offset = 0) {
         container.innerHTML = '<div class="browser-loading"><div class="loading-spinner"></div></div>';
 
         const encodedPath = encodeURIComponent(path);
+        let url = `/api/browser/browse?folder_id=${folderId}&path=${encodedPath}&offset=${offset}&limit=${itemsPerPage}`;
+        if (nocache) url += '&nocache=true';
         const response = await fetch(
-            `/api/browser/browse?folder_id=${folderId}&path=${encodedPath}&offset=${offset}&limit=${itemsPerPage}`,
+            url,
             { headers: { 'Authorization': `Bearer ${token}` } }
         );
 
@@ -2015,7 +2066,7 @@ function nextPage() {
 
 function refreshBrowser() {
     if (currentFolderId) {
-        browsePath(currentFolderId, currentPath, currentOffset);
+        browsePath(currentFolderId, currentPath, currentOffset, true);
     } else {
         loadMediaFolders();
     }

media_server/static/locales/en.json

@@ -109,6 +109,11 @@
   "callbacks.msg.list_failed": "Failed to load callbacks",
   "callbacks.confirm.delete": "Are you sure you want to delete the callback \"{name}\"?",
   "callbacks.confirm.unsaved": "You have unsaved changes. Are you sure you want to discard them?",
+  "tab.player": "Player",
+  "tab.browser": "Browser",
+  "tab.quick_actions": "Actions",
+  "tab.scripts": "Scripts",
+  "tab.callbacks": "Callbacks",
   "browser.title": "Media Browser",
   "browser.home": "Home",
   "browser.manage_folders": "Manage Folders",

media_server/static/locales/ru.json

@@ -109,6 +109,11 @@
   "callbacks.msg.list_failed": "Не удалось загрузить обратные вызовы",
   "callbacks.confirm.delete": "Вы уверены, что хотите удалить обратный вызов \"{name}\"?",
   "callbacks.confirm.unsaved": "У вас есть несохраненные изменения. Вы уверены, что хотите отменить их?",
+  "tab.player": "Плеер",
+  "tab.browser": "Браузер",
+  "tab.quick_actions": "Действия",
+  "tab.scripts": "Скрипты",
+  "tab.callbacks": "Колбэки",
   "browser.title": "Медиа Браузер",
   "browser.home": "Главная",
   "browser.manage_folders": "Управление папками",