mraidChecker

.claude/settings.local.json

@@ -0,0 +1,7 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(go build *)"
+    ]
+  }
+}

LICENSE

@@ -0,0 +1,4 @@
+Copyright (c) 2026 HPL
+
+All rights reserved. This software is proprietary and confidential.
+Unauthorized copying, distribution, or use is prohibited.

build.ps1

@@ -25,8 +25,14 @@ if (-not $Extension -and -not $Standalone) {
 }
 
 $distDir = Join-Path $repoRoot "dist"
+if (Test-Path $distDir) {
+  Remove-Item -Path (Join-Path $distDir "*") -Recurse -Force
+}
 New-Item -ItemType Directory -Path $distDir -Force | Out-Null
 
+$pkg = Get-Content (Join-Path $repoRoot "package.json") -Raw | ConvertFrom-Json
+$version = $pkg.version
+
 function Write-Step($msg) {
   Write-Host ""
   Write-Host "==> $msg" -ForegroundColor Cyan
@@ -104,13 +110,14 @@ if ($Standalone) {
       }
     }
 
-    $exeOut = Join-Path $distDir "hpl-toolbox.exe"
+    $exeName = "hpl-toolbox-$version.exe"
-    go build -ldflags="-s -w -H windowsgui" -trimpath -o $exeOut .
+    $exeOut = Join-Path $distDir $exeName
+    go build -ldflags="-s -w -H windowsgui -X main.AppVersion=$version" -trimpath -o $exeOut .
     if ($LASTEXITCODE -ne 0) { Write-Error "go build failed"; exit 1 }
 
     $summary += [pscustomobject]@{
-      Artifact = "hpl-toolbox.exe"
+      Artifact = $exeName
-      Path     = "dist\hpl-toolbox.exe"
+      Path     = "dist\$exeName"
       Size     = Get-FileSize $exeOut
     }
   } finally {

package.json

@@ -1,9 +1,14 @@
 {
   "name": "hpl-toolbox",
   "displayName": "HPL Toolbox",
-  "description": "Bundled tools: PLEC Upload, AppLovin Demo Upload, Base64 Asset Scanner, Daily Update. Local HTML Host.",
+  "description": "Bundled tools: PLEC Upload, AppLovin Demo Upload, Base64 Asset Scanner, MRAID Checker, Daily Update. Local HTML Host.",
-  "version": "0.1.2",
+  "version": "0.1.5",
   "publisher": "hesukastro",
+  "license": "UNLICENSED",
+  "repository": {
+    "type": "git",
+    "url": "https://gitea.hesukastro.com/hesukastro/vsix-hpl-toolbox.git"
+  },
   "engines": {
     "vscode": "^1.85.0"
   },
@@ -25,6 +30,10 @@
         "command": "hplToolbox.openBase64Scanner",
         "title": "HPL Toolbox: Open Base64 Scanner"
       },
+      {
+        "command": "hplToolbox.openMraidChecker",
+        "title": "HPL Toolbox: Open MRAID Checker"
+      },
       {
         "command": "hplToolbox.openDailyUpdate",
         "title": "HPL Toolbox: Open Daily Update"
@@ -85,6 +94,17 @@
             "type": "string",
             "default": "",
             "description": "Value of the __Host-APPLOVINID cookie for p.applov.in (log in at https://p.applov.in/playablePreview?create=1&qr=1 and copy the cookie from DevTools)."
+          },
+          "hplToolbox.applovin.delayMs": {
+            "type": "number",
+            "default": 5000,
+            "minimum": 0,
+            "description": "Delay (in milliseconds) between consecutive file uploads, to avoid AppLovin rate limiting / 403 responses."
+          },
+          "hplToolbox.applovin.randomizeUserAgent": {
+            "type": "boolean",
+            "default": true,
+            "description": "Randomize the User-Agent header on every request to p.applov.in to reduce bot detection."
           }
         }
       },

src/extension.ts

@@ -3,6 +3,7 @@ import { LauncherViewProvider } from './launcherView';
 import { openPlecUpload } from './tools/plecUpload';
 import { openApplovinUpload } from './tools/applovinUpload';
 import { openBase64Scanner } from './tools/base64Scanner';
+import { openMraidChecker } from './tools/mraidChecker';
 import { openDailyUpdate } from './tools/dailyUpdate';
 import { openSendToMobile } from './tools/sendToMobile';
 
@@ -11,9 +12,10 @@ export function activate(context: vscode.ExtensionContext) {
     vscode.commands.registerCommand('hplToolbox.openPlecUpload', () => openPlecUpload(context)),
     vscode.commands.registerCommand('hplToolbox.openApplovinUpload', () => openApplovinUpload(context)),
     vscode.commands.registerCommand('hplToolbox.openBase64Scanner', () => openBase64Scanner(context)),
+    vscode.commands.registerCommand('hplToolbox.openMraidChecker', () => openMraidChecker(context)),
     vscode.commands.registerCommand('hplToolbox.openDailyUpdate', () => openDailyUpdate(context)),
     vscode.commands.registerCommand('hplToolbox.openSendToMobile', () => openSendToMobile(context)),
-    vscode.window.registerWebviewViewProvider('hplToolbox.launcher', new LauncherViewProvider())
+    vscode.window.registerWebviewViewProvider('hplToolbox.launcher', new LauncherViewProvider(context))
   );
 }
 

src/launcherView.ts

@@ -1,25 +1,86 @@
 import * as vscode from 'vscode';
 
+const BETA_TOOLS_ENABLED_KEY = 'hplToolbox.betaTools.enabled';
+
+interface ToolDefinition {
+  command: string;
+  title: string;
+  description: string;
+  beta?: boolean;
+}
+
+const TOOLS: ToolDefinition[] = [
+  {
+    command: 'hplToolbox.openPlecUpload',
+    title: 'PLEC Upload',
+    description: 'Upload HTML to internal PLEC server',
+  },
+  {
+    command: 'hplToolbox.openApplovinUpload',
+    title: 'AppLovin Demo Upload',
+    description: 'Upload to p.applov.in (QR preview)',
+  },
+  {
+    command: 'hplToolbox.openBase64Scanner',
+    title: 'Base64 Scanner',
+    description: 'Find non-base64 assets in HTML',
+  },
+  {
+    command: 'hplToolbox.openMraidChecker',
+    title: 'MRAID Checker',
+    description: 'Check MRAID requirements and best practices',
+    beta: true,
+  },
+  {
+    command: 'hplToolbox.openDailyUpdate',
+    title: 'Daily Update',
+    description: 'Compose & copy a daily status',
+  },
+  {
+    command: 'hplToolbox.openSendToMobile',
+    title: 'Send To Mobile',
+    description: 'Share HTML to a phone via LAN + QR',
+  },
+];
+
 export class LauncherViewProvider implements vscode.WebviewViewProvider {
+  constructor(private readonly context: vscode.ExtensionContext) {}
+
   resolveWebviewView(view: vscode.WebviewView) {
     view.webview.options = { enableScripts: true };
-    view.webview.html = getHtml();
+    const version = this.context.extension.packageJSON.version as string;
-    view.webview.onDidReceiveMessage((msg) => {
+    const betaToolsEnabled = this.context.globalState.get<boolean>(BETA_TOOLS_ENABLED_KEY, false);
+    view.webview.html = getHtml(version, betaToolsEnabled);
+    view.webview.onDidReceiveMessage(async (msg) => {
       if (msg?.type === 'open' && typeof msg.command === 'string') {
         vscode.commands.executeCommand(msg.command);
+      } else if (msg?.type === 'setBetaToolsEnabled' && typeof msg.enabled === 'boolean') {
+        await this.context.globalState.update(BETA_TOOLS_ENABLED_KEY, msg.enabled);
+        view.webview.html = getHtml(version, msg.enabled);
       }
     });
   }
 }
 
-function getHtml(): string {
+function getHtml(version: string, betaToolsEnabled: boolean): string {
+  const visibleTools = TOOLS.filter(tool => betaToolsEnabled || !tool.beta);
+  const hiddenBetaCount = TOOLS.filter(tool => tool.beta).length - visibleTools.filter(tool => tool.beta).length;
+  const toolButtons = visibleTools.map(renderToolButton).join('\n');
   return `<!DOCTYPE html>
 <html>
 <head>
 <meta charset="UTF-8" />
 <style>
-  body { font-family: var(--vscode-font-family); color: var(--vscode-foreground); padding: 12px 8px; }
+  body {
+    min-height: calc(100vh - 24px);
+    display: flex;
+    flex-direction: column;
+    font-family: var(--vscode-font-family);
+    color: var(--vscode-foreground);
+    padding: 12px 8px;
+  }
   h3 { margin: 0 0 12px 0; font-size: 11px; text-transform: uppercase; letter-spacing: 0.6px; opacity: 0.7; }
+  .tools { flex: 1; }
   .tool-btn {
     display: block; width: 100%; text-align: left;
     padding: 8px 10px; margin-bottom: 6px;
@@ -31,31 +92,48 @@ function getHtml(): string {
   .tool-btn:hover {
     background: var(--vscode-button-secondaryHoverBackground);
   }
+  .tool-title { display: flex; align-items: center; gap: 6px; }
   .tool-desc { display: block; font-size: 11px; opacity: 0.7; margin-top: 2px; }
+  .beta-badge {
+    padding: 1px 5px;
+    border: 1px solid var(--vscode-panel-border);
+    border-radius: 3px;
+    color: var(--vscode-descriptionForeground);
+    font-size: 10px;
+    text-transform: uppercase;
+  }
+  .beta-toggle {
+    margin-top: 12px;
+    padding-top: 10px;
+    border-top: 1px solid var(--vscode-panel-border);
+  }
+  .beta-toggle button {
+    width: 100%;
+    padding: 7px 10px;
+    background: var(--vscode-button-secondaryBackground);
+    color: var(--vscode-button-secondaryForeground);
+    border: 1px solid var(--vscode-panel-border);
+    border-radius: 3px;
+    cursor: pointer;
+    text-align: left;
+  }
+  .beta-toggle button:hover {
+    background: var(--vscode-button-secondaryHoverBackground);
+  }
+  .beta-note { display: block; margin-top: 3px; color: var(--vscode-descriptionForeground); font-size: 11px; }
 </style>
 </head>
 <body>
-  <h3>HPL Toolbox</h3>
+  <h3>HPL Toolbox ${version}</h3>
-  <button class="tool-btn" data-cmd="hplToolbox.openPlecUpload">
+  <div class="tools">
-    PLEC Upload
+${toolButtons}
-    <span class="tool-desc">Upload HTML to internal PLEC server</span>
+  </div>
-  </button>
+  <div class="beta-toggle">
-  <button class="tool-btn" data-cmd="hplToolbox.openApplovinUpload">
+    <button id="betaToggle" data-enabled="${betaToolsEnabled ? 'true' : 'false'}">
-    AppLovin Demo Upload
+      ${betaToolsEnabled ? 'Disable Beta Tools' : 'Enable Beta Tools'}
-    <span class="tool-desc">Upload to p.applov.in (QR preview)</span>
+      <span class="beta-note">${betaToolsEnabled ? 'Beta tools are visible in this launcher.' : `${hiddenBetaCount} beta tool(s) hidden until enabled.`}</span>
-  </button>
-  <button class="tool-btn" data-cmd="hplToolbox.openBase64Scanner">
-    Base64 Scanner
-    <span class="tool-desc">Find non-base64 assets in HTML</span>
-  </button>
-  <button class="tool-btn" data-cmd="hplToolbox.openDailyUpdate">
-    Daily Update
-    <span class="tool-desc">Compose &amp; copy a daily status</span>
-  </button>
-  <button class="tool-btn" data-cmd="hplToolbox.openSendToMobile">
-    Send To Mobile
-    <span class="tool-desc">Share HTML to a phone via LAN + QR</span>
     </button>
+  </div>
 <script>
   const vscode = acquireVsCodeApi();
   document.querySelectorAll('.tool-btn').forEach((btn) => {
@@ -63,7 +141,28 @@ function getHtml(): string {
       vscode.postMessage({ type: 'open', command: btn.dataset.cmd });
     });
   });
+  document.getElementById('betaToggle').addEventListener('click', (event) => {
+    const enabled = event.currentTarget.dataset.enabled === 'true';
+    vscode.postMessage({ type: 'setBetaToolsEnabled', enabled: !enabled });
+  });
 </script>
 </body>
 </html>`;
 }
+
+function renderToolButton(tool: ToolDefinition): string {
+  return `  <button class="tool-btn" data-cmd="${escapeHtml(tool.command)}">
+    <span class="tool-title">${escapeHtml(tool.title)}${tool.beta ? ' <span class="beta-badge">Beta</span>' : ''}</span>
+    <span class="tool-desc">${escapeHtml(tool.description)}</span>
+  </button>`;
+}
+
+function escapeHtml(value: string): string {
+  return value.replace(/[&<>"']/g, ch => ({
+    '&': '&amp;',
+    '<': '&lt;',
+    '>': '&gt;',
+    '"': '&quot;',
+    "'": '&#39;',
+  }[ch] ?? ch));
+}

src/tools/applovinUpload.ts

@@ -20,6 +20,7 @@ export function openApplovinUpload(_context: vscode.ExtensionContext) {
           canSelectMany: true,
           filters: { HTML: ['html', 'htm'] },
           openLabel: 'Select',
+          defaultUri: getPickerDefaultUri(),
         });
         if (picked && picked.length) {
           panel.webview.postMessage({
@@ -34,15 +35,46 @@ export function openApplovinUpload(_context: vscode.ExtensionContext) {
         await handleUpload(panel, msg.paths);
         return;
       }
+
+      if (msg.type === 'saveQr') {
+        await handleSaveQr(panel, msg.url, msg.name);
+        return;
+      }
+
+      if (msg.type === 'saveAllQrs') {
+        await handleSaveAllQrs(panel, msg.items || []);
+        return;
+      }
     } catch (err: any) {
       panel.webview.postMessage({ type: 'error', message: err?.message || String(err) });
     }
   });
 }
 
+const USER_AGENTS = [
+  'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36',
+  'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36',
+  'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36 Edg/129.0.0.0',
+  'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36',
+  'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15',
+  'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0',
+  'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36',
+];
+
+function pickUserAgent(randomize: boolean): string {
+  if (!randomize) return USER_AGENTS[0];
+  return USER_AGENTS[Math.floor(Math.random() * USER_AGENTS.length)];
+}
+
+function sleep(ms: number): Promise<void> {
+  return new Promise(resolve => setTimeout(resolve, ms));
+}
+
 async function handleUpload(panel: vscode.WebviewPanel, filePaths: string[]) {
   const cfg = vscode.workspace.getConfiguration('hplToolbox.applovin');
   const cookie = (cfg.get<string>('cookie') || '').trim();
+  const delayMs = Math.max(0, cfg.get<number>('delayMs') ?? 1500);
+  const randomizeUA = cfg.get<boolean>('randomizeUserAgent') ?? true;
 
   const paths = Array.isArray(filePaths) ? filePaths : [filePaths];
   if (!paths.length) {
@@ -50,14 +82,17 @@ async function handleUpload(panel: vscode.WebviewPanel, filePaths: string[]) {
     return;
   }
 
+  const buildHeaders = (): Record<string, string> => {
     const headers: Record<string, string> = {
       'Accept': 'application/json, text/javascript, */*; q=0.01',
       'Origin': 'https://p.applov.in',
       'Referer': 'https://p.applov.in/playablePreview?create=1&qr=1',
       'X-Requested-With': 'XMLHttpRequest',
-    'User-Agent': 'Mozilla/5.0 (HPL-Toolbox-VSCode)',
+      'User-Agent': pickUserAgent(randomizeUA),
     };
     if (cookie) headers['Cookie'] = `__Host-APPLOVINID=${cookie}`;
+    return headers;
+  };
 
   const buildForm = (filePath: string): FormData => {
     const buf = fs.readFileSync(filePath);
@@ -80,12 +115,17 @@ async function handleUpload(panel: vscode.WebviewPanel, filePaths: string[]) {
     if (!filePath || !fs.existsSync(filePath)) { reportError('File missing'); continue; }
     if (!/\.html?$/i.test(filePath)) { reportError('Must be .html'); continue; }
 
+    if (i > 0 && delayMs > 0) {
+      panel.webview.postMessage({ type: 'status', message: `[${idx}/${paths.length}] Waiting ${delayMs}ms before ${fileName}...` });
+      await sleep(delayMs);
+    }
+
     panel.webview.postMessage({ type: 'status', message: `[${idx}/${paths.length}] Validating ${fileName}...` });
 
     let res: Response;
     try {
       res = await fetch('https://p.applov.in/validateHTMLContent', {
-        method: 'POST', body: buildForm(filePath), headers,
+        method: 'POST', body: buildForm(filePath), headers: buildHeaders(),
       });
     } catch (err: any) { reportError('Network error (validate): ' + (err?.message || err)); continue; }
     const validateText = await res.text();
@@ -100,7 +140,7 @@ async function handleUpload(panel: vscode.WebviewPanel, filePaths: string[]) {
 
     try {
       res = await fetch('https://p.applov.in/getCachedAdURL', {
-        method: 'POST', body: buildForm(filePath), headers,
+        method: 'POST', body: buildForm(filePath), headers: buildHeaders(),
       });
     } catch (err: any) { reportError('Network error (cache): ' + (err?.message || err)); continue; }
     const cacheText = await res.text();
@@ -124,6 +164,79 @@ async function handleUpload(panel: vscode.WebviewPanel, filePaths: string[]) {
   panel.webview.postMessage({ type: 'done' });
 }
 
+function getPickerDefaultUri(): vscode.Uri | undefined {
+  const folders = vscode.workspace.workspaceFolders;
+  if (!folders || folders.length === 0) return undefined;
+  const root = folders[0].uri.fsPath;
+  const dist = path.join(root, 'dist');
+  if (fs.existsSync(dist) && fs.statSync(dist).isDirectory()) {
+    return vscode.Uri.file(dist);
+  }
+  return vscode.Uri.file(root);
+}
+
+function qrBaseName(name: string): string {
+  return (name || 'qr').replace(/\.html?$/i, '').replace(/[\\/:*?"<>|]/g, '_') || 'qr';
+}
+
+async function downloadQr(url: string, destPath: string): Promise<void> {
+  const res = await fetch(url);
+  if (!res.ok) throw new Error(`HTTP ${res.status}`);
+  const buf = Buffer.from(await res.arrayBuffer());
+  await fs.promises.writeFile(destPath, buf);
+}
+
+async function handleSaveQr(panel: vscode.WebviewPanel, url: string, name: string) {
+  if (!url) return;
+  const base = qrBaseName(name);
+  const defaultUri = vscode.Uri.file(path.join(require('os').homedir(), 'Downloads', `${base}.png`));
+  const target = await vscode.window.showSaveDialog({
+    defaultUri,
+    filters: { 'PNG Image': ['png'] },
+    saveLabel: 'Save QR',
+  });
+  if (!target) return;
+  try {
+    await downloadQr(url, target.fsPath);
+    panel.webview.postMessage({ type: 'status', message: `Saved QR: ${target.fsPath}` });
+  } catch (err: any) {
+    panel.webview.postMessage({ type: 'error', message: 'Save QR failed: ' + (err?.message || err) });
+  }
+}
+
+async function handleSaveAllQrs(panel: vscode.WebviewPanel, items: Array<{ name: string; url: string }>) {
+  if (!items.length) return;
+  const picked = await vscode.window.showOpenDialog({
+    canSelectFiles: false,
+    canSelectFolders: true,
+    canSelectMany: false,
+    openLabel: 'Save QRs Here',
+  });
+  if (!picked || !picked.length) return;
+  const dir = picked[0].fsPath;
+  let saved = 0;
+  const errors: string[] = [];
+  for (const it of items) {
+    const base = qrBaseName(it.name);
+    let dest = path.join(dir, `${base}.png`);
+    let n = 1;
+    while (fs.existsSync(dest)) {
+      dest = path.join(dir, `${base} (${n++}).png`);
+    }
+    try {
+      await downloadQr(it.url, dest);
+      saved++;
+    } catch (err: any) {
+      errors.push(`${it.name}: ${err?.message || err}`);
+    }
+  }
+  if (errors.length) {
+    panel.webview.postMessage({ type: 'error', message: `Saved ${saved}/${items.length}. Errors:\n` + errors.join('\n') });
+  } else {
+    panel.webview.postMessage({ type: 'status', message: `Saved ${saved} QR${saved === 1 ? '' : 's'} to ${dir}` });
+  }
+}
+
 function getHtml(): string {
   return `<!DOCTYPE html>
 <html>
@@ -163,11 +276,15 @@ function getHtml(): string {
 <p style="opacity:0.8;font-size:12px;margin-top:0;">Upload HTML files to p.applov.in and get QR codes to scan with the AppLovin Playable Preview app (iOS/Android).</p>
 
 <div class="file-cell" style="margin-bottom:8px;">
-  <button id="pick" class="secondary">Choose files...</button>
+  <button id="pick" class="secondary">Add files...</button>
+  <button id="clear" class="secondary" style="display:none;">Clear</button>
   <span class="file-name" id="fileName">(no files)</span>
 </div>
+<div id="fileList" style="margin-bottom:8px;font-size:12px;opacity:0.85;"></div>
 <div class="actions">
   <button id="upload">Upload to AppLovin</button>
+  <button id="saveAll" class="secondary" style="display:none;">Save All QRs...</button>
+  <button id="regenAll" class="secondary" style="display:none;">Regenerate QRs</button>
 </div>
 <div id="status"></div>
 <div id="results"></div>
@@ -175,13 +292,51 @@ function getHtml(): string {
 <script>
   const vscode = acquireVsCodeApi();
   const pickBtn = document.getElementById('pick');
+  const clearBtn = document.getElementById('clear');
   const uploadBtn = document.getElementById('upload');
   const fileNameEl = document.getElementById('fileName');
+  const fileListEl = document.getElementById('fileList');
   const statusEl = document.getElementById('status');
   const resultsEl = document.getElementById('results');
+  const saveAllBtn = document.getElementById('saveAll');
+  const regenAllBtn = document.getElementById('regenAll');
   let selectedPaths = [];
+  let resultItems = [];
+
+  function basename(p) {
+    const i = Math.max(p.lastIndexOf('/'), p.lastIndexOf('\\\\'));
+    return i >= 0 ? p.slice(i + 1) : p;
+  }
+  function renderSelection() {
+    if (!selectedPaths.length) {
+      fileNameEl.textContent = '(no files)';
+      fileListEl.innerHTML = '';
+      clearBtn.style.display = 'none';
+      return;
+    }
+    fileNameEl.textContent = selectedPaths.length + ' file' + (selectedPaths.length === 1 ? '' : 's');
+    fileListEl.innerHTML = selectedPaths.map(p => '<div>' + escapeHtml(basename(p)) + '</div>').join('');
+    clearBtn.style.display = '';
+  }
+
+  saveAllBtn.addEventListener('click', () => {
+    if (!resultItems.length) return;
+    vscode.postMessage({ type: 'saveAllQrs', items: resultItems });
+  });
+
+  regenAllBtn.addEventListener('click', () => {
+    const imgs = resultsEl.querySelectorAll('img[data-qr]');
+    imgs.forEach(img => {
+      const base = img.getAttribute('data-qr');
+      img.src = base + '&_=' + Date.now();
+    });
+  });
 
   pickBtn.addEventListener('click', () => vscode.postMessage({ type: 'pickFiles' }));
+  clearBtn.addEventListener('click', () => {
+    selectedPaths = [];
+    renderSelection();
+  });
 
   uploadBtn.addEventListener('click', () => {
     statusEl.textContent = '';
@@ -191,6 +346,9 @@ function getHtml(): string {
       return;
     }
     uploadBtn.disabled = true;
+    resultItems = [];
+    saveAllBtn.style.display = 'none';
+    regenAllBtn.style.display = 'none';
     vscode.postMessage({ type: 'upload', paths: selectedPaths });
   });
 
@@ -201,13 +359,14 @@ function getHtml(): string {
   window.addEventListener('message', (e) => {
     const m = e.data;
     if (m.type === 'filesSelected') {
-      selectedPaths = m.files.map(f => f.path);
+      const added = m.files.map(f => f.path).filter(p => !selectedPaths.includes(p));
-      const names = m.files.map(f => f.name);
+      selectedPaths = selectedPaths.concat(added);
-      fileNameEl.textContent = names.length === 1
+      renderSelection();
-        ? names[0]
-        : names.length + ' files: ' + names.slice(0, 3).join(', ') + (names.length > 3 ? '...' : '');
     } else if (m.type === 'start') {
       resultsEl.innerHTML = '';
+      resultItems = [];
+      saveAllBtn.style.display = 'none';
+      regenAllBtn.style.display = 'none';
     } else if (m.type === 'status') {
       statusEl.textContent = m.message;
       statusEl.className = '';
@@ -230,27 +389,28 @@ function getHtml(): string {
       wrap.innerHTML =
         '<div style="font-weight:600;margin-bottom:8px;word-break:break-all;">' + escapeHtml(m.name) + '</div>' +
         '<div style="text-align:center;margin-bottom:8px;">' +
-          '<img src="' + m.qrImg + '" alt="QR" style="background:#fff;padding:8px;border-radius:4px;max-width:100%;" />' +
+          '<img src="' + m.qrImg + '" data-qr="' + m.qrImg + '" alt="QR" style="background:#fff;padding:8px;border-radius:4px;max-width:100%;" />' +
         '</div>' +
         '<div style="font-size:11px;opacity:0.8;word-break:break-all;">Hash: ' + escapeHtml(m.hash) + '</div>';
       const actions = document.createElement('div');
       actions.className = 'result-actions';
-      const copyHash = document.createElement('button');
-      copyHash.textContent = 'Copy Hash';
-      copyHash.onclick = () => vscode.postMessage({ type: 'copy', text: m.hash });
-      const copyPreview = document.createElement('button');
-      copyPreview.textContent = 'Copy URL';
-      copyPreview.className = 'secondary';
-      copyPreview.onclick = () => vscode.postMessage({ type: 'copy', text: m.previewUrl });
       const openPreview = document.createElement('button');
       openPreview.textContent = 'Open';
       openPreview.className = 'secondary';
       openPreview.onclick = () => vscode.postMessage({ type: 'open', text: m.previewUrl });
-      actions.appendChild(copyHash);
+      const saveQr = document.createElement('button');
-      actions.appendChild(copyPreview);
+      saveQr.textContent = 'Save QR';
+      saveQr.className = 'secondary';
+      saveQr.onclick = () => vscode.postMessage({ type: 'saveQr', url: m.qrImg, name: m.name });
       actions.appendChild(openPreview);
+      actions.appendChild(saveQr);
       wrap.appendChild(actions);
       resultsEl.appendChild(wrap);
+      resultItems.push({ name: m.name, url: m.qrImg });
+      if (resultItems.length >= 2) {
+        saveAllBtn.style.display = '';
+        regenAllBtn.style.display = '';
+      }
     } else if (m.type === 'done') {
       statusEl.innerHTML = '<span class="ok">Done.</span>';
       uploadBtn.disabled = false;

src/tools/mraidChecker.ts

@@ -0,0 +1,496 @@
+import * as vscode from 'vscode';
+import * as fs from 'fs';
+import * as path from 'path';
+import { singletonPanel } from './shared';
+
+const store: { panel: vscode.WebviewPanel | null } = { panel: null };
+
+type Severity = 'requirement' | 'best-practice';
+
+interface MraidIssue {
+  id: string;
+  severity: Severity;
+  title: string;
+  detail: string;
+  line?: number;
+  reference: string;
+}
+
+interface MraidResult {
+  file: string;
+  ok: boolean;
+  issues: MraidIssue[];
+}
+
+interface MraidRule {
+  id: string;
+  severity: Severity;
+  title: string;
+  detail: string;
+  reference: string;
+  test: (ctx: ScanContext) => MraidIssue | null;
+}
+
+interface ScanContext {
+  html: string;
+  scriptText: string;
+  lowerHtml: string;
+  lowerScript: string;
+  mraidCallLines: Map<string, number>;
+}
+
+export function openMraidChecker(_context: vscode.ExtensionContext) {
+  const { panel, isNew } = singletonPanel(store, 'hplToolbox.mraidChecker', 'MRAID Checker');
+  if (!isNew) return;
+
+  panel.webview.html = getHtml();
+  panel.webview.onDidReceiveMessage(async (msg) => {
+    if (msg.type === 'ready') {
+      const ws = vscode.workspace.workspaceFolders?.[0];
+      if (ws) {
+        const distPath = path.join(ws.uri.fsPath, 'dist');
+        if (fs.existsSync(distPath) && fs.statSync(distPath).isDirectory()) {
+          panel.webview.postMessage({ type: 'folderPicked', path: distPath });
+        }
+      }
+    } else if (msg.type === 'pickFolder') {
+      const picked = await vscode.window.showOpenDialog({
+        canSelectFolders: true,
+        canSelectFiles: false,
+        canSelectMany: false,
+        openLabel: 'Select Folder',
+      });
+      if (picked && picked[0]) {
+        panel.webview.postMessage({ type: 'folderPicked', path: picked[0].fsPath });
+      }
+    } else if (msg.type === 'pickFiles') {
+      const picked = await vscode.window.showOpenDialog({
+        canSelectFolders: false,
+        canSelectFiles: true,
+        canSelectMany: true,
+        openLabel: 'Select Files',
+        filters: { 'HTML': ['html', 'htm'] },
+      });
+      if (picked && picked.length) {
+        panel.webview.postMessage({ type: 'filesPicked', paths: picked.map(u => u.fsPath) });
+      }
+    } else if (msg.type === 'scan') {
+      const folder: string | undefined = msg.folder;
+      const files: string[] | undefined = msg.files;
+      let targets: string[] = [];
+      let baseDir = '';
+      let skipped = 0;
+      if (files && files.length) {
+        const existing = files.filter(f => fs.existsSync(f));
+        targets = existing.filter(isSupportedMraidBuild);
+        skipped = existing.length - targets.length;
+        baseDir = targets.length ? commonBaseDir(targets) : '';
+      } else if (folder && fs.existsSync(folder)) {
+        const allHtmlFiles = await collectHtmlFiles(folder);
+        targets = allHtmlFiles.filter(isSupportedMraidBuild);
+        skipped = allHtmlFiles.length - targets.length;
+        baseDir = folder;
+      } else {
+        panel.webview.postMessage({ type: 'results', results: [], error: 'Pick a folder or files first' });
+        return;
+      }
+
+      if (targets.length === 0) {
+        panel.webview.postMessage({
+          type: 'results',
+          results: [],
+          skipped,
+          error: 'No AppLovin, ironSource, or Unity HTML builds were found.',
+        });
+        return;
+      }
+
+      const results: MraidResult[] = [];
+      for (const file of targets) {
+        try {
+          const content = fs.readFileSync(file, 'utf8');
+          const issues = checkMraid(content);
+          const display = baseDir ? path.relative(baseDir, file) || path.basename(file) : file;
+          results.push({ file: display, ok: issues.length === 0, issues });
+        } catch {
+          // Skip unreadable files, matching the scanner pattern used elsewhere.
+        }
+      }
+      panel.webview.postMessage({ type: 'results', results, skipped });
+    }
+  });
+}
+
+function commonBaseDir(files: string[]): string {
+  if (files.length === 0) return '';
+  if (files.length === 1) return path.dirname(files[0]);
+  const split = files.map(f => path.dirname(f).split(path.sep));
+  const first = split[0];
+  let i = 0;
+  while (i < first.length && split.every(parts => parts[i] === first[i])) i++;
+  return first.slice(0, i).join(path.sep);
+}
+
+async function collectHtmlFiles(root: string): Promise<string[]> {
+  const out: string[] = [];
+  const stack: string[] = [root];
+  while (stack.length) {
+    const dir = stack.pop()!;
+    let entries: fs.Dirent[];
+    try {
+      entries = fs.readdirSync(dir, { withFileTypes: true });
+    } catch {
+      continue;
+    }
+    for (const e of entries) {
+      const full = path.join(dir, e.name);
+      if (e.isDirectory()) {
+        if (e.name === 'node_modules' || e.name === '.git') continue;
+        stack.push(full);
+      } else if (e.isFile() && /\.html?$/i.test(e.name)) {
+        out.push(full);
+      }
+    }
+  }
+  return out;
+}
+
+function checkMraid(html: string): MraidIssue[] {
+  const scriptText = extractScriptText(html);
+  const ctx: ScanContext = {
+    html,
+    scriptText,
+    lowerHtml: html.toLowerCase(),
+    lowerScript: scriptText.toLowerCase(),
+    mraidCallLines: collectMraidCallLines(html),
+  };
+
+  return MRAID_RULES
+    .map(rule => rule.test(ctx))
+    .filter((issue): issue is MraidIssue => issue !== null);
+}
+
+function extractScriptText(html: string): string {
+  const scripts: string[] = [];
+  const scriptRegex = /<script\b[^>]*>([\s\S]*?)<\/script>/gi;
+  let m: RegExpExecArray | null;
+  while ((m = scriptRegex.exec(html)) !== null) {
+    scripts.push(m[1]);
+  }
+  return scripts.join('\n');
+}
+
+function collectMraidCallLines(html: string): Map<string, number> {
+  const calls = new Map<string, number>();
+  const lines = html.split(/\r?\n/);
+  const callRegex = /\bmraid\s*\.\s*([a-zA-Z_$][\w$]*)\s*\(/g;
+  for (let i = 0; i < lines.length; i++) {
+    let m: RegExpExecArray | null;
+    while ((m = callRegex.exec(lines[i])) !== null) {
+      if (!calls.has(m[1])) calls.set(m[1], i + 1);
+    }
+  }
+  return calls;
+}
+
+function isSupportedMraidBuild(filePath: string): boolean {
+  const normalized = filePath.toLowerCase().replace(/\\/g, '/');
+  return /(^|[\/._ -])(al|applovin|app-lovin|is|iron.?source|un|unity|unityads|unity-ads)([\/._ -]|$)/i.test(normalized);
+}
+
+function hasMraidReference(ctx: ScanContext): boolean {
+  return /\bmraid\b/i.test(ctx.html);
+}
+
+function hasMraidCall(ctx: ScanContext, method: string): boolean {
+  return ctx.mraidCallLines.has(method);
+}
+
+function mraidLine(ctx: ScanContext, method: string): number | undefined {
+  return ctx.mraidCallLines.get(method);
+}
+
+function issue(rule: MraidRule, line?: number): MraidIssue {
+  return {
+    id: rule.id,
+    severity: rule.severity,
+    title: rule.title,
+    detail: rule.detail,
+    line,
+    reference: rule.reference,
+  };
+}
+
+function hasReadyGate(ctx: ScanContext): boolean {
+  return (
+    /mraid\s*\.\s*addEventListener\s*\(\s*['"]ready['"]/i.test(ctx.scriptText) ||
+    /mraid\s*\.\s*getState\s*\(\s*\)\s*={0,2}\s*['"]loading['"]/i.test(ctx.scriptText) ||
+    /['"]loading['"]\s*={0,2}\s*mraid\s*\.\s*getState\s*\(\s*\)/i.test(ctx.scriptText)
+  );
+}
+
+function hasEventListener(ctx: ScanContext, eventName: string): boolean {
+  const pattern = new RegExp(`mraid\\s*\\.\\s*addEventListener\\s*\\(\\s*['"]${eventName}['"]`, 'i');
+  return pattern.test(ctx.scriptText);
+}
+
+function hasSupportCheck(ctx: ScanContext, feature: string): boolean {
+  const pattern = new RegExp(`mraid\\s*\\.\\s*supports\\s*\\(\\s*['"]${feature}['"]`, 'i');
+  return pattern.test(ctx.scriptText);
+}
+
+function usesDirectBrowserNavigation(ctx: ScanContext): boolean {
+  return (
+    /\bwindow\s*\.\s*open\s*\(/i.test(ctx.scriptText) ||
+    /\blocation\s*\.\s*(href|assign|replace)\b/i.test(ctx.scriptText)
+  );
+}
+
+const MRAID_REFERENCE = 'MRAID 3.0 specification and MRAID 3.0 Best Practices Guide in mraidDocuments/';
+
+const MRAID_RULES: MraidRule[] = [
+  {
+    id: 'mraid-reference',
+    severity: 'requirement',
+    title: 'MRAID API reference not found',
+    detail: 'Playable HTML should use the injected mraid object when it depends on an MRAID container.',
+    reference: MRAID_REFERENCE,
+    test: (ctx) => hasMraidReference(ctx) ? null : issue(MRAID_RULES_BY_ID['mraid-reference']),
+  },
+  {
+    id: 'ready-gate',
+    severity: 'requirement',
+    title: 'MRAID ready state is not guarded',
+    detail: 'Gate ad startup behind mraid.ready, or call startup immediately only when mraid.getState() is not loading.',
+    reference: MRAID_REFERENCE,
+    test: (ctx) => !hasMraidReference(ctx) || hasReadyGate(ctx) ? null : issue(MRAID_RULES_BY_ID['ready-gate']),
+  },
+  {
+    id: 'error-listener',
+    severity: 'best-practice',
+    title: 'No MRAID error listener found',
+    detail: 'Listen for mraid error events so unsupported or failed MRAID calls can be logged or handled gracefully.',
+    reference: MRAID_REFERENCE,
+    test: (ctx) => !hasMraidReference(ctx) || hasEventListener(ctx, 'error') ? null : issue(MRAID_RULES_BY_ID['error-listener']),
+  },
+  {
+    id: 'viewability',
+    severity: 'best-practice',
+    title: 'Viewability handling not found',
+    detail: 'Use mraid.isViewable() and/or viewableChange before starting animation, audio, video, or timers.',
+    reference: MRAID_REFERENCE,
+    test: (ctx) => {
+      const hasVisibilitySignal = hasMraidCall(ctx, 'isViewable') || hasEventListener(ctx, 'viewableChange') || hasEventListener(ctx, 'exposureChange');
+      return !hasMraidReference(ctx) || hasVisibilitySignal ? null : issue(MRAID_RULES_BY_ID['viewability']);
+    },
+  },
+  {
+    id: 'open-api',
+    severity: 'requirement',
+    title: 'Browser navigation used instead of mraid.open',
+    detail: 'Use mraid.open(url) for click-through navigation inside an MRAID ad container.',
+    reference: MRAID_REFERENCE,
+    test: (ctx) => usesDirectBrowserNavigation(ctx) && !hasMraidCall(ctx, 'open') ? issue(MRAID_RULES_BY_ID['open-api']) : null,
+  },
+  {
+    id: 'close-api',
+    severity: 'best-practice',
+    title: 'No mraid.close call found',
+    detail: 'If the creative renders its own close control, wire that control to mraid.close().',
+    reference: MRAID_REFERENCE,
+    test: (ctx) => {
+      const appearsToHaveCloseUi = /\b(close|dismiss|skip)\b/i.test(ctx.html);
+      return appearsToHaveCloseUi && !hasMraidCall(ctx, 'close') ? issue(MRAID_RULES_BY_ID['close-api']) : null;
+    },
+  },
+  {
+    id: 'expand-support',
+    severity: 'requirement',
+    title: 'mraid.expand used without supports check',
+    detail: 'Check mraid.supports("expand") before using expand behavior.',
+    reference: MRAID_REFERENCE,
+    test: (ctx) => hasMraidCall(ctx, 'expand') && !hasSupportCheck(ctx, 'expand') ? issue(MRAID_RULES_BY_ID['expand-support'], mraidLine(ctx, 'expand')) : null,
+  },
+  {
+    id: 'resize-support',
+    severity: 'requirement',
+    title: 'mraid.resize used without supports check',
+    detail: 'Check mraid.supports("resize") before using resize behavior.',
+    reference: MRAID_REFERENCE,
+    test: (ctx) => hasMraidCall(ctx, 'resize') && !hasSupportCheck(ctx, 'resize') ? issue(MRAID_RULES_BY_ID['resize-support'], mraidLine(ctx, 'resize')) : null,
+  },
+  {
+    id: 'orientation-support',
+    severity: 'best-practice',
+    title: 'Orientation properties set without supports check',
+    detail: 'Check mraid.supports("orientation") before requiring orientation behavior.',
+    reference: MRAID_REFERENCE,
+    test: (ctx) => hasMraidCall(ctx, 'setOrientationProperties') && !hasSupportCheck(ctx, 'orientation') ? issue(MRAID_RULES_BY_ID['orientation-support'], mraidLine(ctx, 'setOrientationProperties')) : null,
+  },
+  {
+    id: 'size-change',
+    severity: 'best-practice',
+    title: 'No sizeChange listener found',
+    detail: 'Listen for sizeChange when layout depends on container size, resize, expand, or orientation behavior.',
+    reference: MRAID_REFERENCE,
+    test: (ctx) => {
+      const dependsOnSize = hasMraidCall(ctx, 'getMaxSize') || hasMraidCall(ctx, 'getScreenSize') || hasMraidCall(ctx, 'resize') || hasMraidCall(ctx, 'expand') || hasMraidCall(ctx, 'setOrientationProperties');
+      return dependsOnSize && !hasEventListener(ctx, 'sizeChange') ? issue(MRAID_RULES_BY_ID['size-change']) : null;
+    },
+  },
+  {
+    id: 'state-change',
+    severity: 'best-practice',
+    title: 'No stateChange listener found',
+    detail: 'Listen for stateChange when using expand, resize, close, or other state-changing container behavior.',
+    reference: MRAID_REFERENCE,
+    test: (ctx) => {
+      const changesState = hasMraidCall(ctx, 'expand') || hasMraidCall(ctx, 'resize') || hasMraidCall(ctx, 'close');
+      return changesState && !hasEventListener(ctx, 'stateChange') ? issue(MRAID_RULES_BY_ID['state-change']) : null;
+    },
+  },
+];
+
+const MRAID_RULES_BY_ID = MRAID_RULES.reduce<Record<string, MraidRule>>((acc, rule) => {
+  acc[rule.id] = rule;
+  return acc;
+}, {});
+
+function getHtml(): string {
+  return `<!DOCTYPE html>
+<html>
+<head>
+<meta charset="UTF-8" />
+<style>
+  body { font-family: var(--vscode-font-family); padding: 12px; color: var(--vscode-foreground); }
+  .row { display: flex; gap: 8px; align-items: center; margin-bottom: 8px; }
+  input[type=text] { flex: 1; padding: 4px 6px; background: var(--vscode-input-background); color: var(--vscode-input-foreground); border: 1px solid var(--vscode-input-border); }
+  button { padding: 4px 12px; background: var(--vscode-button-background); color: var(--vscode-button-foreground); border: none; cursor: pointer; }
+  button:hover { background: var(--vscode-button-hoverBackground); }
+  .summary { margin-top: 12px; opacity: 0.85; }
+  .docs { color: var(--vscode-descriptionForeground); margin-bottom: 12px; }
+  .row-result { padding: 8px 0; border-bottom: 1px solid var(--vscode-panel-border); }
+  .file-head { display: flex; gap: 8px; align-items: baseline; font-family: var(--vscode-editor-font-family); font-size: 12px; }
+  .mark { width: 18px; flex-shrink: 0; font-weight: bold; }
+  .ok { color: #3fb950; }
+  .bad { color: #f85149; }
+  .file-name { word-break: break-all; }
+  .counts { color: var(--vscode-descriptionForeground); margin-left: auto; white-space: nowrap; }
+  .issues { margin: 6px 0 0 26px; padding: 0; }
+  .issue { margin: 6px 0; list-style: none; }
+  .badge { display: inline-block; min-width: 82px; margin-right: 6px; padding: 1px 5px; border-radius: 3px; font-size: 11px; text-align: center; }
+  .requirement { color: #ffb4ad; background: rgba(248,81,73,0.18); }
+  .best-practice { color: #ffd580; background: rgba(210,153,34,0.18); }
+  .issue-title { font-weight: 600; }
+  .issue-detail { color: var(--vscode-descriptionForeground); margin-top: 2px; }
+</style>
+</head>
+<body>
+  <h2>MRAID Checker</h2>
+  <div class="docs">Static checks for AppLovin, ironSource, and Unity HTML builds based on MRAID 3.0 requirements and best practices from mraidDocuments/.</div>
+  <div class="row">
+    <input id="folder" type="text" placeholder="Folder to scan recursively..." />
+    <button id="pick">Browse Folder...</button>
+    <button id="pickFiles">Pick Files...</button>
+    <button id="scan">Scan</button>
+  </div>
+  <div id="selection" class="summary"></div>
+  <div id="status"></div>
+  <div id="results"></div>
+<script>
+  const vscode = acquireVsCodeApi();
+  vscode.postMessage({ type: 'ready' });
+  const folderEl = document.getElementById('folder');
+  const statusEl = document.getElementById('status');
+  const resultsEl = document.getElementById('results');
+  const selectionEl = document.getElementById('selection');
+  let pickedFiles = [];
+
+  function clearFiles() {
+    pickedFiles = [];
+    selectionEl.textContent = '';
+  }
+
+  function escapeText(value) {
+    return String(value).replace(/[&<>"']/g, (ch) => ({
+      '&': '&amp;',
+      '<': '&lt;',
+      '>': '&gt;',
+      '"': '&quot;',
+      "'": '&#39;'
+    }[ch]));
+  }
+
+  folderEl.addEventListener('input', clearFiles);
+
+  document.getElementById('pick').addEventListener('click', () => {
+    vscode.postMessage({ type: 'pickFolder' });
+  });
+  document.getElementById('pickFiles').addEventListener('click', () => {
+    vscode.postMessage({ type: 'pickFiles' });
+  });
+  document.getElementById('scan').addEventListener('click', () => {
+    statusEl.textContent = 'Scanning...';
+    resultsEl.innerHTML = '';
+    if (pickedFiles.length) {
+      vscode.postMessage({ type: 'scan', files: pickedFiles });
+    } else {
+      const folder = folderEl.value.trim();
+      if (!folder) { statusEl.textContent = 'Pick a folder or files first.'; return; }
+      vscode.postMessage({ type: 'scan', folder });
+    }
+  });
+
+  window.addEventListener('message', (event) => {
+    const msg = event.data;
+    if (msg.type === 'folderPicked') {
+      folderEl.value = msg.path;
+      clearFiles();
+    } else if (msg.type === 'filesPicked') {
+      pickedFiles = msg.paths;
+      folderEl.value = '';
+      selectionEl.textContent = pickedFiles.length + ' file(s) selected';
+    } else if (msg.type === 'results') {
+      if (msg.error) { statusEl.textContent = 'Error: ' + msg.error; return; }
+      const total = msg.results.length;
+      const withIssues = msg.results.filter(r => !r.ok).length;
+      const requirements = msg.results.reduce((n, r) => n + r.issues.filter(i => i.severity === 'requirement').length, 0);
+      const bestPractices = msg.results.reduce((n, r) => n + r.issues.filter(i => i.severity === 'best-practice').length, 0);
+      const skipped = Number(msg.skipped || 0);
+      const skippedText = skipped ? ' Skipped ' + skipped + ' non-target HTML file(s).' : '';
+      statusEl.innerHTML = '<div class="summary">Scanned ' + total + ' AppLovin/ironSource/Unity HTML file(s). ' + withIssues + ' file(s) need review. ' + requirements + ' requirement issue(s), ' + bestPractices + ' best-practice warning(s).' + skippedText + '</div>';
+      resultsEl.innerHTML = '';
+      for (const r of msg.results) {
+        const requirementsForFile = r.issues.filter(i => i.severity === 'requirement').length;
+        const bestPracticesForFile = r.issues.filter(i => i.severity === 'best-practice').length;
+        const row = document.createElement('div');
+        row.className = 'row-result';
+        row.innerHTML =
+          '<div class="file-head">' +
+          '<span class="mark ' + (r.ok ? 'ok' : 'bad') + '">' + (r.ok ? 'OK' : 'X') + '</span>' +
+          '<span class="file-name">' + escapeText(r.file) + '</span>' +
+          '<span class="counts">' + requirementsForFile + ' req / ' + bestPracticesForFile + ' bp</span>' +
+          '</div>';
+        if (!r.ok) {
+          const list = document.createElement('ul');
+          list.className = 'issues';
+          for (const i of r.issues) {
+            const item = document.createElement('li');
+            item.className = 'issue';
+            const line = i.line ? ' line ' + i.line + ':' : '';
+            item.innerHTML =
+              '<span class="badge ' + i.severity + '">' + escapeText(i.severity) + '</span>' +
+              '<span class="issue-title">' + escapeText(line + ' ' + i.title) + '</span>' +
+              '<div class="issue-detail">' + escapeText(i.detail) + '</div>';
+            list.appendChild(item);
+          }
+          row.appendChild(list);
+        }
+        resultsEl.appendChild(row);
+      }
+    }
+  });
+</script>
+</body>
+</html>`;
+}

src/tools/plecUpload.ts

@@ -17,18 +17,16 @@ export function openPlecUpload(_context: vscode.ExtensionContext) {
 
       if (msg.type === 'pickFile') {
         const picked = await vscode.window.showOpenDialog({
-          canSelectMany: false,
+          canSelectMany: true,
           filters: { HTML: ['html', 'htm'] },
           openLabel: 'Select',
           defaultUri: getPickerDefaultUri(),
         });
-        if (picked && picked[0]) {
+        if (picked && picked.length) {
-          const fp = picked[0].fsPath;
           panel.webview.postMessage({
-            type: 'fileSelected',
+            type: 'filesSelected',
             rowId: msg.rowId,
-            path: fp,
+            files: picked.map(u => ({ path: u.fsPath, name: path.basename(u.fsPath) })),
-            name: path.basename(fp),
           });
         }
         return;
@@ -233,6 +231,15 @@ function getHtml(): string {
   const vscode = acquireVsCodeApi();
   let nextId = 1;
   const tbody = document.querySelector('#rows tbody');
+
+  function parseIterationName(filename) {
+    const base = filename.replace(/\\.html?$/i, '');
+    const tokens = base.split('_');
+    for (const t of tokens) {
+      if (/^(full|\\d+clk|\\d+s(?:ec)?)$/i.test(t)) return t.toLowerCase();
+    }
+    return base;
+  }
   const statusEl = document.getElementById('status');
   const resultsEl = document.getElementById('results');
 
@@ -286,13 +293,32 @@ function getHtml(): string {
 
   window.addEventListener('message', (e) => {
     const m = e.data;
-    if (m.type === 'fileSelected') {
+    if (m.type === 'filesSelected') {
-      const tr = tbody.querySelector('tr[data-id="' + m.rowId + '"]');
+      const firstTr = tbody.querySelector('tr[data-id="' + m.rowId + '"]');
+      const affected = [];
+      m.files.forEach(function(f, i) {
+        let tr;
+        if (i === 0) {
+          tr = firstTr;
+        } else {
+          addRow();
+          tr = tbody.lastElementChild;
+        }
         if (!tr) return;
-      tr.querySelector('[data-path]').value = m.path;
+        tr.querySelector('[data-path]').value = f.path;
-      tr.querySelector('[data-name]').textContent = m.name;
+        tr.querySelector('[data-name]').textContent = f.name;
         const iter = tr.querySelector('[data-iter]');
-      if (!iter.value) iter.value = m.name.replace(/\\.html?$/i, '');
+        if (!iter.value) iter.value = parseIterationName(f.name);
+        affected.push(tr);
+      });
+      if (affected.length > 1) {
+        const iters = affected.map(r => r.querySelector('[data-iter]').value);
+        if (iters[0] !== '' && iters.every(n => n === iters[0])) {
+          affected.forEach((r, i) => {
+            r.querySelector('[data-iter]').value = String(i + 1).padStart(2, '0') + '_' + iters[0];
+          });
+        }
+      }
     } else if (m.type === 'status') {
       statusEl.textContent = m.message;
       statusEl.className = '';

standalone/applovin.go

@@ -5,25 +5,49 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"math/rand"
 	"mime/multipart"
 	"net/http"
 	urlpkg "net/url"
 	"os"
 	"path/filepath"
 	"regexp"
+	"strings"
+	"time"
 )
 
+var applovinUserAgents = []string{
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36 Edg/129.0.0.0",
+	"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36",
+	"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0",
+	"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36",
+}
+
+func pickApplovinUserAgent(randomize bool) string {
+	if !randomize {
+		return applovinUserAgents[0]
+	}
+	return applovinUserAgents[rand.Intn(len(applovinUserAgents))]
+}
+
 func ApplovinPage(w http.ResponseWriter, r *http.Request) {
 	body := `
 <h2>AppLovin Playable Preview (QR)</h2>
 <p class="hint" style="margin-top:0;">Upload HTML files to p.applov.in and get QR codes to scan with the AppLovin Playable Preview app.</p>
 
 <div style="display:flex;align-items:center;gap:8px;margin-bottom:8px;">
-  <button id="pick" class="secondary">Choose files...</button>
+  <button id="pick" class="secondary">Add files...</button>
+  <button id="clear" class="secondary" style="display:none;">Clear</button>
   <span id="fileName" class="hint">(no files)</span>
 </div>
+<div id="fileList" style="margin-bottom:8px;font-size:12px;opacity:0.85;"></div>
 <div style="display:flex;gap:8px;">
   <button id="upload">Upload to AppLovin</button>
+  <button id="saveAll" class="secondary" style="display:none;">Save All QRs...</button>
+  <button id="regenAll" class="secondary" style="display:none;">Regenerate QRs</button>
 </div>
 
 <div id="status" style="margin-top:12px;min-height:20px;"></div>
@@ -36,21 +60,70 @@ func ApplovinPage(w http.ResponseWriter, r *http.Request) {
 
 <script>
 const pickBtn = document.getElementById('pick');
+const clearBtn = document.getElementById('clear');
 const uploadBtn = document.getElementById('upload');
 const fileNameEl = document.getElementById('fileName');
+const fileListEl = document.getElementById('fileList');
 const statusEl = document.getElementById('status');
 const resultsEl = document.getElementById('results');
+const saveAllBtn = document.getElementById('saveAll');
+const regenAllBtn = document.getElementById('regenAll');
 let selectedPaths = [];
+let resultItems = [];
+
+function basename(p) {
+  const i = Math.max(p.lastIndexOf('/'), p.lastIndexOf('\\'));
+  return i >= 0 ? p.slice(i + 1) : p;
+}
+function renderSelection() {
+  if (!selectedPaths.length) {
+    fileNameEl.textContent = '(no files)';
+    fileListEl.innerHTML = '';
+    clearBtn.style.display = 'none';
+    return;
+  }
+  fileNameEl.textContent = selectedPaths.length + ' file' + (selectedPaths.length === 1 ? '' : 's');
+  fileListEl.innerHTML = selectedPaths.map(p => '<div>' + escapeHtml(basename(p)) + '</div>').join('');
+  clearBtn.style.display = '';
+}
+
+saveAllBtn.addEventListener('click', async () => {
+  if (!resultItems.length) return;
+  saveAllBtn.disabled = true;
+  try {
+    const r = await fetch('/api/applovin/saveAllQrs', {
+      method: 'POST',
+      headers: {'Content-Type':'application/json'},
+      body: JSON.stringify({ items: resultItems }),
+    });
+    const j = await r.json();
+    statusEl.innerHTML = j.ok
+      ? '<span class="ok">' + escapeHtml(j.message || 'Saved.') + '</span>'
+      : '<span class="err">' + escapeHtml(j.message || 'Save failed.') + '</span>';
+  } finally {
+    saveAllBtn.disabled = false;
+  }
+});
+
+regenAllBtn.addEventListener('click', () => {
+  resultsEl.querySelectorAll('img[data-qr]').forEach(img => {
+    const base = img.getAttribute('data-qr');
+    img.src = base + '&_=' + Date.now();
+  });
+});
+
+clearBtn.addEventListener('click', () => {
+  selectedPaths = [];
+  renderSelection();
+});
 
 pickBtn.addEventListener('click', async () => {
   const r = await fetch('/api/applovin/pick', { method: 'POST' });
   const j = await r.json();
   if (j.files && j.files.length) {
-    selectedPaths = j.files.map(f => f.path);
+    const added = j.files.map(f => f.path).filter(p => !selectedPaths.includes(p));
-    const names = j.files.map(f => f.name);
+    selectedPaths = selectedPaths.concat(added);
-    fileNameEl.textContent = names.length === 1
+    renderSelection();
-      ? names[0]
-      : names.length + ' files: ' + names.slice(0,3).join(', ') + (names.length > 3 ? '...' : '');
   }
 });
 
@@ -62,6 +135,9 @@ uploadBtn.addEventListener('click', async () => {
     return;
   }
   uploadBtn.disabled = true;
+  resultItems = [];
+  saveAllBtn.style.display = 'none';
+  regenAllBtn.style.display = 'none';
   try {
     const res = await fetch('/api/applovin/upload', {
       method: 'POST',
@@ -113,25 +189,42 @@ function handle(m) {
     wrap.innerHTML =
       '<div style="font-weight:600;margin-bottom:8px;">' + escapeHtml(m.name) + '</div>' +
       '<div style="text-align:center;margin-bottom:8px;">' +
-        '<img src="' + m.qrImg + '" style="background:#fff;padding:8px;border-radius:4px;max-width:100%;" />' +
+        '<img src="' + m.qrImg + '" data-qr="' + m.qrImg + '" style="background:#fff;padding:8px;border-radius:4px;max-width:100%;" />' +
       '</div>' +
       '<div style="font-size:11px;opacity:0.8;">Hash: ' + escapeHtml(m.hash) + '</div>';
     const actions = document.createElement('div');
     actions.className = 'result-actions';
-    const copyHash = document.createElement('button');
-    copyHash.textContent = 'Copy Hash';
-    copyHash.onclick = () => fetch('/api/clipboard', {method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({text:m.hash})});
-    const copyUrl = document.createElement('button');
-    copyUrl.textContent = 'Copy URL';
-    copyUrl.className = 'secondary';
-    copyUrl.onclick = () => fetch('/api/clipboard', {method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({text:m.previewUrl})});
     const openBtn = document.createElement('button');
     openBtn.textContent = 'Open';
     openBtn.className = 'secondary';
     openBtn.onclick = () => fetch('/api/open', {method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({url:m.previewUrl})});
-    actions.appendChild(copyHash); actions.appendChild(copyUrl); actions.appendChild(openBtn);
+    const saveQr = document.createElement('button');
+    saveQr.textContent = 'Save QR';
+    saveQr.className = 'secondary';
+    saveQr.onclick = async () => {
+      saveQr.disabled = true;
+      try {
+        const r = await fetch('/api/applovin/saveQr', {
+          method: 'POST',
+          headers: {'Content-Type':'application/json'},
+          body: JSON.stringify({ name: m.name, url: m.qrImg }),
+        });
+        const j = await r.json();
+        statusEl.innerHTML = j.ok
+          ? '<span class="ok">' + escapeHtml(j.message || 'Saved.') + '</span>'
+          : '<span class="err">' + escapeHtml(j.message || 'Save failed.') + '</span>';
+      } finally {
+        saveQr.disabled = false;
+      }
+    };
+    actions.appendChild(openBtn); actions.appendChild(saveQr);
     wrap.appendChild(actions);
     resultsEl.appendChild(wrap);
+    resultItems.push({ name: m.name, url: m.qrImg });
+    if (resultItems.length >= 2) {
+      saveAllBtn.style.display = '';
+      regenAllBtn.style.display = '';
+    }
   } else if (m.type === 'done') {
     statusEl.innerHTML = '<span class="ok">Done.</span>';
   }
@@ -143,11 +236,16 @@ function handle(m) {
 }
 
 func ApplovinPick(w http.ResponseWriter, r *http.Request) {
+	cfg := LoadConfig()
 	picked := PickFiles(
 		"Select HTML files",
 		[]FileFilter{{Name: "HTML", Extensions: []string{"html", "htm"}}},
-		true, "",
+		true, cfg.LastPickDir,
 	)
+	if len(picked) > 0 {
+		cfg.LastPickDir = filepath.Dir(picked[0])
+		_ = SaveConfig(cfg)
+	}
 	files := make([]map[string]string, 0, len(picked))
 	for _, p := range picked {
 		files = append(files, map[string]string{"path": p, "name": filepath.Base(p)})
@@ -163,7 +261,16 @@ func ApplovinUpload(w http.ResponseWriter, r *http.Request) {
 		http.Error(w, err.Error(), http.StatusBadRequest)
 		return
 	}
-	cookie := LoadConfig().Applovin.Cookie
+	cfg := LoadConfig().Applovin
+	cookie := cfg.Cookie
+	delayMs := cfg.DelayMs
+	if delayMs < 0 {
+		delayMs = 0
+	}
+	randomizeUA := true
+	if cfg.RandomizeUserAgent != nil {
+		randomizeUA = *cfg.RandomizeUserAgent
+	}
 
 	w.Header().Set("Content-Type", "application/x-ndjson")
 	flusher, _ := w.(http.Flusher)
@@ -208,7 +315,7 @@ func ApplovinUpload(w http.ResponseWriter, r *http.Request) {
 		req.Header.Set("Origin", "https://p.applov.in")
 		req.Header.Set("Referer", "https://p.applov.in/playablePreview?create=1&qr=1")
 		req.Header.Set("X-Requested-With", "XMLHttpRequest")
-		req.Header.Set("User-Agent", "Mozilla/5.0 (HPL-Toolbox-Standalone)")
+		req.Header.Set("User-Agent", pickApplovinUserAgent(randomizeUA))
 		if cookie != "" {
 			req.Header.Set("Cookie", "__Host-APPLOVINID="+cookie)
 		}
@@ -237,6 +344,11 @@ func ApplovinUpload(w http.ResponseWriter, r *http.Request) {
 			continue
 		}
 
+		if i > 0 && delayMs > 0 {
+			send(map[string]any{"type": "status", "message": fmt.Sprintf("[%d/%d] Waiting %dms before %s...", idx, len(req.Paths), delayMs, fileName)})
+			time.Sleep(time.Duration(delayMs) * time.Millisecond)
+		}
+
 		send(map[string]any{"type": "status", "message": fmt.Sprintf("[%d/%d] Validating %s...", idx, len(req.Paths), fileName)})
 
 		body, ct, err := buildForm(filePath)
@@ -300,3 +412,114 @@ func ApplovinUpload(w http.ResponseWriter, r *http.Request) {
 	}
 	send(map[string]any{"type": "done"})
 }
+
+func qrBaseName(name string) string {
+	base := name
+	if base == "" {
+		base = "qr"
+	}
+	base = regexp.MustCompile(`(?i)\.html?$`).ReplaceAllString(base, "")
+	base = regexp.MustCompile(`[\\/:*?"<>|]`).ReplaceAllString(base, "_")
+	if base == "" {
+		base = "qr"
+	}
+	return base
+}
+
+func downloadQR(url, destPath string) error {
+	resp, err := http.Get(url)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
+		return fmt.Errorf("HTTP %d", resp.StatusCode)
+	}
+	data, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return err
+	}
+	return os.WriteFile(destPath, data, 0644)
+}
+
+func ApplovinSaveQR(w http.ResponseWriter, r *http.Request) {
+	var req struct {
+		Name string `json:"name"`
+		URL  string `json:"url"`
+	}
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		writeJSON(w, map[string]any{"ok": false, "message": err.Error()})
+		return
+	}
+	if req.URL == "" {
+		writeJSON(w, map[string]any{"ok": false, "message": "Missing URL"})
+		return
+	}
+	base := qrBaseName(req.Name)
+	dest := PickSaveFile("Save QR", base+".png", []FileFilter{{Name: "PNG Image", Extensions: []string{"png"}}}, "")
+	if dest == "" {
+		writeJSON(w, map[string]any{"ok": false, "message": "Cancelled"})
+		return
+	}
+	if err := downloadQR(req.URL, dest); err != nil {
+		writeJSON(w, map[string]any{"ok": false, "message": "Save failed: " + err.Error()})
+		return
+	}
+	writeJSON(w, map[string]any{"ok": true, "message": "Saved QR: " + dest})
+}
+
+func ApplovinSaveAllQRs(w http.ResponseWriter, r *http.Request) {
+	var req struct {
+		Items []struct {
+			Name string `json:"name"`
+			URL  string `json:"url"`
+		} `json:"items"`
+	}
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		writeJSON(w, map[string]any{"ok": false, "message": err.Error()})
+		return
+	}
+	if len(req.Items) == 0 {
+		writeJSON(w, map[string]any{"ok": false, "message": "No items"})
+		return
+	}
+	dir := PickFolder("Choose folder to save QRs", "")
+	if dir == "" {
+		writeJSON(w, map[string]any{"ok": false, "message": "Cancelled"})
+		return
+	}
+	saved := 0
+	errs := []string{}
+	for _, it := range req.Items {
+		base := qrBaseName(it.Name)
+		dest := filepath.Join(dir, base+".png")
+		n := 1
+		for fileExists(dest) {
+			dest = filepath.Join(dir, fmt.Sprintf("%s (%d).png", base, n))
+			n++
+		}
+		if err := downloadQR(it.URL, dest); err != nil {
+			errs = append(errs, it.Name+": "+err.Error())
+			continue
+		}
+		saved++
+	}
+	if len(errs) > 0 {
+		writeJSON(w, map[string]any{
+			"ok":      false,
+			"message": fmt.Sprintf("Saved %d/%d. Errors: %s", saved, len(req.Items), strings.Join(errs, "; ")),
+		})
+		return
+	}
+	writeJSON(w, map[string]any{
+		"ok":      true,
+		"message": fmt.Sprintf("Saved %d QR%s to %s", saved, plural(saved), dir),
+	})
+}
+
+func plural(n int) string {
+	if n == 1 {
+		return ""
+	}
+	return "s"
+}

standalone/layout.go

@@ -17,6 +17,7 @@ const SharedCSS = `
   .topbar a { color: #9cdcfe; text-decoration: none; padding: 4px 10px; border-radius: 3px; }
   .topbar a:hover { background: #2a2d2e; }
   .topbar a.active { background: #094771; color: #fff; }
+  .topbar-version { margin-left: auto; font-size: 11px; opacity: 0.45; letter-spacing: 0.4px; }
   .content { padding: 16px; max-width: 980px; margin: 0 auto; }
   h2 { margin-top: 0; font-weight: 500; }
   input[type=text], input[type=date], select, textarea {
@@ -67,7 +68,7 @@ func Page(activePath, title, body string) string {
 <title>` + title + ` — HPL Toolbox</title>
 <style>` + SharedCSS + `</style>
 </head><body>
-<div class="topbar">` + tabs.String() + `</div>
+<div class="topbar">` + tabs.String() + `<span class="topbar-version">v` + AppVersion + `</span></div>
 <div class="content">` + body + `</div>
 </body></html>`
 }

standalone/main.go

@@ -16,10 +16,12 @@ import (
 	webview "github.com/jchv/go-webview2"
 )
 
+var AppVersion = "dev"
+
 var currentHwnd atomic.Uintptr
 
 func setupFileLogging() {
-	logPath := filepath.Join(appDir(), "debug.log")
+	logPath := filepath.Join(userDataDir(), "debug.log")
 	f, err := os.OpenFile(logPath, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644)
 	if err != nil {
 		return
@@ -57,11 +59,18 @@ func main() {
 	}
 	defer removeLockFile()
 
+	webviewTmp, err := os.MkdirTemp("", "hpltoolbox-wv2-*")
+	if err != nil {
+		log.Fatalf("Failed to create webview temp dir: %v", err)
+	}
+	defer os.RemoveAll(webviewTmp)
+
 	w := webview.NewWithOptions(webview.WebViewOptions{
 		Debug:     false,
 		AutoFocus: true,
+		DataPath:  webviewTmp,
 		WindowOptions: webview.WindowOptions{
-			Title:  "HPL Toolbox",
+			Title:  "HPL Toolbox " + AppVersion,
 			Width:  1100,
 			Height: 720,
 			IconId: 1,
@@ -120,6 +129,8 @@ func buildMux() *http.ServeMux {
 	// AppLovin
 	mux.HandleFunc("POST /api/applovin/pick", ApplovinPick)
 	mux.HandleFunc("POST /api/applovin/upload", ApplovinUpload)
+	mux.HandleFunc("POST /api/applovin/saveQr", ApplovinSaveQR)
+	mux.HandleFunc("POST /api/applovin/saveAllQrs", ApplovinSaveAllQRs)
 
 	// Base64
 	mux.HandleFunc("POST /api/base64/pickFolder", Base64PickFolder)

standalone/platform.go

@@ -19,6 +19,8 @@ type PlecConfig struct {
 
 type ApplovinConfig struct {
 	Cookie             string `json:"cookie"`
+	DelayMs            int    `json:"delayMs"`
+	RandomizeUserAgent *bool  `json:"randomizeUserAgent,omitempty"`
 }
 
 type SendToMobileConfig struct {
@@ -34,10 +36,28 @@ type AppConfig struct {
 	Applovin     ApplovinConfig     `json:"applovin"`
 	SendToMobile SendToMobileConfig `json:"sendToMobile"`
 	DailyUpdate  DailyUpdateConfig  `json:"dailyUpdate"`
+	LastPickDir  string             `json:"lastPickDir,omitempty"`
 }
 
 var configMu sync.Mutex
 
+// userDataDir returns %LOCALAPPDATA%\HPLToolbox, creating it if needed.
+// All mutable app files (config, lock, logs, WebView2 cache) live here so
+// they are never placed next to the executable, which may be on a synced or
+// antivirus-watched drive and would cause message-loop stalls.
+func userDataDir() string {
+	local := os.Getenv("LOCALAPPDATA")
+	if local == "" {
+		local = os.Getenv("APPDATA")
+	}
+	if local == "" {
+		return appDir()
+	}
+	dir := filepath.Join(local, "HPLToolbox")
+	_ = os.MkdirAll(dir, 0755)
+	return dir
+}
+
 func defaultConfig() AppConfig {
 	return AppConfig{
 		Plec: PlecConfig{
@@ -46,7 +66,7 @@ func defaultConfig() AppConfig {
 			PreviewBase:     "https://playable.applovindemo.com/phaser/",
 			SkipExistsCheck: false,
 		},
-		Applovin:     ApplovinConfig{Cookie: ""},
+		Applovin:     ApplovinConfig{Cookie: "", DelayMs: 5000},
 		SendToMobile: SendToMobileConfig{Port: 0},
 		DailyUpdate:  DailyUpdateConfig{LastProject: ""},
 	}
@@ -72,7 +92,7 @@ func appDir() string {
 }
 
 func configPath() string {
-	return filepath.Join(appDir(), "config.json")
+	return filepath.Join(userDataDir(), "config.json")
 }
 
 func LoadConfig() AppConfig {
@@ -159,6 +179,37 @@ if ($dlg.ShowDialog() -eq [System.Windows.Forms.DialogResult]::OK) {
 	return result
 }
 
+func PickSaveFile(title, defaultName string, filters []FileFilter, initialDir string) string {
+	filterStr := "All files|*.*"
+	if len(filters) > 0 {
+		parts := make([]string, 0, len(filters))
+		for _, f := range filters {
+			exts := make([]string, 0, len(f.Extensions))
+			for _, e := range f.Extensions {
+				exts = append(exts, "*."+e)
+			}
+			parts = append(parts, fmt.Sprintf("%s|%s", f.Name, strings.Join(exts, ";")))
+		}
+		filterStr = strings.Join(parts, "|")
+	}
+	script := fmt.Sprintf(`
+Add-Type -AssemblyName System.Windows.Forms
+$dlg = New-Object System.Windows.Forms.SaveFileDialog
+$dlg.Title = '%s'
+$dlg.Filter = '%s'
+$dlg.FileName = '%s'
+if ('%s'.Length -gt 0) { $dlg.InitialDirectory = '%s' }
+if ($dlg.ShowDialog() -eq [System.Windows.Forms.DialogResult]::OK) {
+  Write-Output $dlg.FileName
+}
+`, psEscape(title), psEscape(filterStr), psEscape(defaultName), psEscape(initialDir), psEscape(initialDir))
+	out, err := exec.Command("powershell", "-NoProfile", "-NonInteractive", "-STA", "-Command", script).Output()
+	if err != nil {
+		return ""
+	}
+	return strings.TrimSpace(string(out))
+}
+
 func PickFolder(title, initialDir string) string {
 	script := fmt.Sprintf(`
 Add-Type -AssemblyName System.Windows.Forms

standalone/plec.go

@@ -54,6 +54,15 @@ const tbody = document.querySelector('#rows tbody');
 const statusEl = document.getElementById('status');
 const resultsEl = document.getElementById('results');
 
+function parseIterationName(filename) {
+  const base = filename.replace(/\.html?$/i, '');
+  const tokens = base.split('_');
+  for (const t of tokens) {
+    if (/^(full|\d+clk|\d+s(?:ec)?)$/i.test(t)) return t.toLowerCase();
+  }
+  return base;
+}
+
 function addRow() {
   const id = 'r' + (nextId++);
   const tr = document.createElement('tr');
@@ -73,11 +82,24 @@ function addRow() {
   tr.querySelector('.pick').addEventListener('click', async () => {
     const res = await fetch('/api/plec/pick', { method: 'POST' });
     const j = await res.json();
-    if (j.path) {
+    if (j.files && j.files.length) {
-      tr.querySelector('[data-path]').value = j.path;
+      const affected = [];
-      tr.querySelector('[data-name]').textContent = j.name;
+      j.files.forEach(function(f, i) {
-      const iter = tr.querySelector('[data-iter]');
+        const target = i === 0 ? tr : (addRow(), tbody.lastElementChild);
-      if (!iter.value) iter.value = j.name.replace(/\.html?$/i, '');
+        target.querySelector('[data-path]').value = f.path;
+        target.querySelector('[data-name]').textContent = f.name;
+        const iter = target.querySelector('[data-iter]');
+        if (!iter.value) iter.value = parseIterationName(f.name);
+        affected.push(target);
+      });
+      if (affected.length > 1) {
+        const iters = affected.map(r => r.querySelector('[data-iter]').value);
+        if (iters[0] !== '' && iters.every(n => n === iters[0])) {
+          affected.forEach((r, i) => {
+            r.querySelector('[data-iter]').value = String(i + 1).padStart(2, '0') + '_' + iters[0];
+          });
+        }
+      }
     }
   });
   tr.querySelector('.remove-btn').addEventListener('click', () => {
@@ -163,16 +185,23 @@ addRow();
 }
 
 func PlecPick(w http.ResponseWriter, r *http.Request) {
+	cfg := LoadConfig()
 	picked := PickFiles(
 		"Select HTML",
 		[]FileFilter{{Name: "HTML", Extensions: []string{"html", "htm"}}},
-		false, "",
+		true, cfg.LastPickDir,
 	)
 	if len(picked) == 0 {
-		writeJSON(w, map[string]any{"path": nil})
+		writeJSON(w, map[string]any{"files": []any{}})
 		return
 	}
-	writeJSON(w, map[string]any{"path": picked[0], "name": filepath.Base(picked[0])})
+	cfg.LastPickDir = filepath.Dir(picked[0])
+	_ = SaveConfig(cfg)
+	files := make([]map[string]string, 0, len(picked))
+	for _, p := range picked {
+		files = append(files, map[string]string{"path": p, "name": filepath.Base(p)})
+	}
+	writeJSON(w, map[string]any{"files": files})
 }
 
 type plecRow struct {

standalone/single_instance.go

@@ -12,7 +12,7 @@ import (
 )
 
 func lockFilePath() string {
-	return filepath.Join(appDir(), ".hpltoolbox.lock")
+	return filepath.Join(userDataDir(), ".hpltoolbox.lock")
 }
 
 // focusExistingInstance returns true if another instance was found and