fix(properties): route live controls through native mutations

- route active normal and Torrent-safe fields to dedicated live consumers

- fence unsupported statuses and mixed persisted patches at the bridge

- add regression coverage for active status and media boundaries

src/components/PropertiesWindowApp.tsx

@@ -73,6 +73,8 @@ const isTorrentDiagnosticsStatus = (status: string) =>
 const isTorrentPollingStatus = isTorrentLiveStatus;
 
 const isEditableStatus = (status: string) => !['downloading', 'processing', 'verifying', 'seeding', 'waitingToSeed', 'retrying', 'moving'].includes(status);
+const isLiveNormalSpeedStatus = (status: string) => ['downloading', 'retrying'].includes(status);
+const isLiveTorrentControlStatus = (status: string) => ['downloading', 'seeding', 'retrying'].includes(status);
 
 const isTorrentFileSelectionEditable = (status: string) =>
   ['ready', 'staged', 'queued', 'paused', 'failed'].includes(status);
@@ -932,7 +934,15 @@ export const PropertiesWindowApp = () => {
   };
 
   const applyActiveTab = useCallback(async () => {
-    if (!snapshot || !isEditableStatus(snapshot.status)) {
+    if (!snapshot) return;
+    const canApplyLiveNormalSpeed = snapshot.isMedia !== true
+      && snapshot.isTorrent !== true
+      && isLiveNormalSpeedStatus(snapshot.status);
+    const canApplyLiveTorrentOptions = snapshot.isTorrent === true
+      && isLiveTorrentControlStatus(snapshot.status);
+    if (!isEditableStatus(snapshot.status)
+      && !((activeTab === 'transfer' && canApplyLiveNormalSpeed)
+        || (activeTab === 'options' && canApplyLiveTorrentOptions))) {
       closeAfterSaveRef.current = false;
       switchAfterSaveRef.current = null;
       setErrorMessage(t($ => $.properties.editingUnavailable));
@@ -982,13 +992,16 @@ export const PropertiesWindowApp = () => {
         patch.torrentTrackerInterval = encodePropertiesPatchValue(trackerInterval.trim() ? Number(trackerInterval) : undefined);
       }
     } else if (activeTab === 'options' || activeTab === 'transfer') {
-      if (downloadLimit !== (snapshot.speedLimit ?? '')) patch.speedLimit = encodePropertiesPatchValue(downloadLimit.trim() ? downloadLimit : undefined);
-      if (activeTab === 'transfer' && !isTorrent && connections.trim()) {
+      const canApplyLiveTorrentSpeed = !isTorrent || isLiveNormalSpeedStatus(snapshot.status);
+      if (downloadLimit !== (snapshot.speedLimit ?? '') && canApplyLiveTorrentSpeed) {
+        patch.speedLimit = encodePropertiesPatchValue(downloadLimit.trim() ? downloadLimit : undefined);
+      }
+      if (isEditableStatus(snapshot.status) && activeTab === 'transfer' && !isTorrent && connections.trim()) {
         const nextConnections = Number(connections);
         if (nextConnections !== snapshot.connections) patch.connections = nextConnections;
       }
       if (isTorrent) {
-        if (removeUnselectedFile && (!snapshot.torrentFileIndices || snapshot.torrentFileIndices.length === 0)) {
+        if (isEditableStatus(snapshot.status) && removeUnselectedFile && (!snapshot.torrentFileIndices || snapshot.torrentFileIndices.length === 0)) {
           setErrorMessage(t($ => $.properties.torrentRemoveUnselectedFileSelectionRequired));
           closeAfterSaveRef.current = false;
           switchAfterSaveRef.current = null;
@@ -999,22 +1012,24 @@ export const PropertiesWindowApp = () => {
           patch.torrentMaxPeers = encodePropertiesPatchValue(maxPeers.trim() ? Number(maxPeers) : undefined);
         }
         if (peerSpeedLimit !== (snapshot.torrentPeerSpeedLimit ?? '')) patch.torrentPeerSpeedLimit = encodePropertiesPatchValue(peerSpeedLimit.trim() ? peerSpeedLimit : undefined);
-        if (seedTime !== String(snapshot.torrentSeedTime ?? '')) {
-          patch.torrentSeedTime = encodePropertiesPatchValue(seedTime.trim() ? Number(seedTime) : undefined);
+        if (isEditableStatus(snapshot.status)) {
+          if (seedTime !== String(snapshot.torrentSeedTime ?? '')) {
+            patch.torrentSeedTime = encodePropertiesPatchValue(seedTime.trim() ? Number(seedTime) : undefined);
+          }
+          if (seedRatio !== String(snapshot.torrentSeedRatio ?? '')) {
+            patch.torrentSeedRatio = encodePropertiesPatchValue(seedRatio.trim() ? Number(seedRatio) : undefined);
+          }
+          if (checkIntegrity !== (snapshot.torrentCheckIntegrity === true)) patch.torrentCheckIntegrity = checkIntegrity;
+          if (removeUnselectedFile !== (snapshot.torrentRemoveUnselectedFile === true)) patch.torrentRemoveUnselectedFile = removeUnselectedFile;
+          if (stopTimeout !== String(snapshot.torrentStopTimeout ?? '')) {
+            patch.torrentStopTimeout = encodePropertiesPatchValue(stopTimeout.trim() ? Number(stopTimeout) : undefined);
+          }
+          if (prioritizePiece !== (snapshot.torrentPrioritizePiece ?? '')) patch.torrentPrioritizePiece = encodePropertiesPatchValue(prioritizePiece.trim() || undefined);
+          const nextEncryptionPolicy = encryptionPolicy || undefined;
+          if (nextEncryptionPolicy !== snapshot.torrentEncryptionPolicy) patch.torrentEncryptionPolicy = encodePropertiesPatchValue(nextEncryptionPolicy);
+          const nextFileAllocation = fileAllocation || undefined;
+          if (nextFileAllocation !== snapshot.torrentFileAllocation) patch.torrentFileAllocation = encodePropertiesPatchValue(nextFileAllocation);
         }
-        if (seedRatio !== String(snapshot.torrentSeedRatio ?? '')) {
-          patch.torrentSeedRatio = encodePropertiesPatchValue(seedRatio.trim() ? Number(seedRatio) : undefined);
-        }
-        if (checkIntegrity !== (snapshot.torrentCheckIntegrity === true)) patch.torrentCheckIntegrity = checkIntegrity;
-        if (removeUnselectedFile !== (snapshot.torrentRemoveUnselectedFile === true)) patch.torrentRemoveUnselectedFile = removeUnselectedFile;
-        if (stopTimeout !== String(snapshot.torrentStopTimeout ?? '')) {
-          patch.torrentStopTimeout = encodePropertiesPatchValue(stopTimeout.trim() ? Number(stopTimeout) : undefined);
-        }
-        if (prioritizePiece !== (snapshot.torrentPrioritizePiece ?? '')) patch.torrentPrioritizePiece = encodePropertiesPatchValue(prioritizePiece.trim() || undefined);
-        const nextEncryptionPolicy = encryptionPolicy || undefined;
-        if (nextEncryptionPolicy !== snapshot.torrentEncryptionPolicy) patch.torrentEncryptionPolicy = encodePropertiesPatchValue(nextEncryptionPolicy);
-        const nextFileAllocation = fileAllocation || undefined;
-        if (nextFileAllocation !== snapshot.torrentFileAllocation) patch.torrentFileAllocation = encodePropertiesPatchValue(nextFileAllocation);
       }
     } else if (activeTab === 'advanced') {
       if (isSftp && sftpHostKeyMd !== (snapshot.sftpHostKeyMd ?? '')) {
@@ -1132,6 +1147,14 @@ export const PropertiesWindowApp = () => {
   }
 
   const editingEnabled = pendingAction === null && isEditableStatus(snapshot.status);
+  const liveNormalSpeedEnabled = pendingAction === null
+    && snapshot.isMedia !== true
+    && snapshot.isTorrent !== true
+    && isLiveNormalSpeedStatus(snapshot.status);
+  const liveTorrentOptionsEnabled = pendingAction === null
+    && snapshot.isTorrent === true
+    && isLiveTorrentControlStatus(snapshot.status);
+  const liveTorrentSpeedEnabled = liveTorrentOptionsEnabled && isLiveNormalSpeedStatus(snapshot.status);
   const identityEditingEnabled = editingEnabled && !isTorrent && ['ready', 'staged'].includes(snapshot.status);
   const torrentMoveAvailable = ['paused', 'completed', 'failed'].includes(snapshot.status);
   const progress = getPropertiesProgress(snapshot);
@@ -1498,12 +1521,12 @@ export const PropertiesWindowApp = () => {
           <PropertiesField
             label={t($ => $.properties.speedCap)}
             controlId="properties-transfer-speed-cap"
-            hint={t($ => $.properties.speedLimitHint)}
+            hint={liveNormalSpeedEnabled ? t($ => $.properties.liveSpeedLimitHint) : t($ => $.properties.speedLimitHint)}
             meta={downloadLimit.trim() ? t($ => $.properties.customPerDownload) : t($ => $.properties.usingDefault)}
             className="max-w-sm"
             format={t($ => $.properties.inputFormat, { format: t($ => $.properties.inputFormatSpeedLimit) })}
           >
-            <input id="properties-transfer-speed-cap" className="app-control w-full" value={downloadLimit} onChange={event => { setDownloadLimit(event.target.value); setDraftTab('transfer'); }} placeholder={t($ => $.properties.inputExampleSpeedLimit)} disabled={!editingEnabled} />
+            <input id="properties-transfer-speed-cap" className="app-control w-full" value={downloadLimit} onChange={event => { setDownloadLimit(event.target.value); setDraftTab('transfer'); }} placeholder={t($ => $.properties.inputExampleSpeedLimit)} disabled={!(editingEnabled || liveNormalSpeedEnabled)} />
           </PropertiesField>
           <PropertiesField
             label={connectionControlLabel}
@@ -1524,18 +1547,18 @@ export const PropertiesWindowApp = () => {
             <div className="properties-option-group-heading">
               <div>
                 <h2 id="properties-options-limits-heading">{t($ => $.properties.liveTorrentPeerOptions)}</h2>
-                <p>{t($ => $.properties.speedLimitHint)}</p>
+                <p>{t($ => $.properties.liveTorrentPeerOptionsHint)}</p>
               </div>
             </div>
             <div className="grid max-w-4xl gap-4 sm:grid-cols-2">
               <PropertiesField
                 label={t($ => $.properties.speedCap)}
                 controlId="properties-options-speed-cap"
-                hint={t($ => $.properties.speedLimitHint)}
+                hint={liveTorrentSpeedEnabled ? t($ => $.properties.liveSpeedLimitHint) : t($ => $.properties.speedLimitHint)}
                 meta={downloadLimit.trim() ? t($ => $.properties.customPerDownload) : t($ => $.properties.usingDefault)}
                 format={t($ => $.properties.inputFormat, { format: t($ => $.properties.inputFormatSpeedLimit) })}
               >
-                <input id="properties-options-speed-cap" className="app-control w-full" value={downloadLimit} onChange={event => { setDownloadLimit(event.target.value); setDraftTab('options'); }} placeholder={t($ => $.properties.inputExampleSpeedLimit)} disabled={!editingEnabled} />
+                <input id="properties-options-speed-cap" className="app-control w-full" value={downloadLimit} onChange={event => { setDownloadLimit(event.target.value); setDraftTab('options'); }} placeholder={t($ => $.properties.inputExampleSpeedLimit)} disabled={!(editingEnabled || liveTorrentSpeedEnabled)} />
               </PropertiesField>
               <PropertiesField
                 label={t($ => $.properties.liveTorrentUploadLimit)}
@@ -1544,7 +1567,7 @@ export const PropertiesWindowApp = () => {
                 meta={uploadLimit.trim() ? t($ => $.properties.customPerDownload) : t($ => $.properties.usingDefault)}
                 format={t($ => $.properties.inputFormat, { format: t($ => $.properties.inputFormatSpeedLimit) })}
               >
-                <input id="properties-options-upload-limit" className="app-control w-full" value={uploadLimit} onChange={event => { setUploadLimit(event.target.value); setDraftTab('options'); }} placeholder={t($ => $.properties.inputExampleSpeedLimit)} disabled={!editingEnabled} />
+                <input id="properties-options-upload-limit" className="app-control w-full" value={uploadLimit} onChange={event => { setUploadLimit(event.target.value); setDraftTab('options'); }} placeholder={t($ => $.properties.liveTorrentUploadLimitPlaceholder)} disabled={!(editingEnabled || liveTorrentOptionsEnabled)} />
               </PropertiesField>
               <PropertiesField
                 label={t($ => $.properties.torrentMaxPeers)}
@@ -1553,7 +1576,7 @@ export const PropertiesWindowApp = () => {
                 meta={maxPeers.trim() ? t($ => $.properties.customPerDownload) : t($ => $.properties.usingDefault)}
                 format={t($ => $.properties.inputFormat, { format: t($ => $.properties.inputFormatMaxPeers) })}
               >
-                <input id="properties-options-max-peers" className="app-control w-full" value={maxPeers} onChange={event => { setMaxPeers(event.target.value); setDraftTab('options'); }} inputMode="numeric" placeholder={t($ => $.properties.inputExampleMaxPeers)} disabled={!editingEnabled} />
+                <input id="properties-options-max-peers" className="app-control w-full" value={maxPeers} onChange={event => { setMaxPeers(event.target.value); setDraftTab('options'); }} inputMode="numeric" placeholder={t($ => $.properties.inputExampleMaxPeers)} disabled={!(editingEnabled || liveTorrentOptionsEnabled)} />
               </PropertiesField>
               <PropertiesField
                 label={t($ => $.properties.torrentPeerSpeedLimit)}
@@ -1562,7 +1585,7 @@ export const PropertiesWindowApp = () => {
                 meta={peerSpeedLimit.trim() ? t($ => $.properties.customPerDownload) : t($ => $.properties.usingDefault)}
                 format={t($ => $.properties.inputFormat, { format: t($ => $.properties.inputFormatSpeedLimit) })}
               >
-                <input id="properties-options-peer-speed-limit" className="app-control w-full" value={peerSpeedLimit} onChange={event => { setPeerSpeedLimit(event.target.value); setDraftTab('options'); }} placeholder={t($ => $.properties.inputExampleSpeedLimit)} disabled={!editingEnabled} />
+                <input id="properties-options-peer-speed-limit" className="app-control w-full" value={peerSpeedLimit} onChange={event => { setPeerSpeedLimit(event.target.value); setDraftTab('options'); }} placeholder={t($ => $.properties.inputExampleSpeedLimit)} disabled={!(editingEnabled || liveTorrentOptionsEnabled)} />
               </PropertiesField>
             </div>
           </section>

src/components/PropertiesWindowBridgeHost.tsx

@@ -205,6 +205,33 @@ export const copyEditablePropertiesPatch = (
   return safePatch;
 };
 
+const LIVE_PROPERTIES_STATUSES = new Set(['downloading', 'seeding', 'retrying']);
+const LIVE_PROPERTIES_KEYS = new Set<keyof PropertiesPatch>([
+  'speedLimit',
+  'torrentUploadLimit',
+  'torrentMaxPeers',
+  'torrentPeerSpeedLimit',
+]);
+
+/**
+ * Active transfers may change only the controls whose native consumers expose
+ * an in-place Aria2 mutation. Keep this check at the main-webview boundary so
+ * an active Properties save cannot enter applyPropertiesInternal and detach a
+ * live lifecycle before being rejected by its status gate.
+ */
+export const isLivePropertiesPatch = (
+  item: Pick<DownloadItem, 'isMedia' | 'isTorrent' | 'status'>,
+  patch: Partial<DownloadItem>,
+): boolean => {
+  if (!LIVE_PROPERTIES_STATUSES.has(item.status) || item.isMedia === true) return false;
+  const keys = Object.keys(patch) as Array<keyof PropertiesPatch>;
+  if (item.isTorrent !== true) {
+    return keys.every(key => key === 'speedLimit' && ['downloading', 'retrying'].includes(item.status));
+  }
+  return keys.every(key => key !== 'speedLimit' || ['downloading', 'retrying'].includes(item.status))
+    && keys.every(key => LIVE_PROPERTIES_KEYS.has(key));
+};
+
 export const PropertiesWindowBridgeHost = () => {
   useEffect(() => {
     const mainWindowTarget = propertiesWindowEventTarget(getCurrentWindow().label);
@@ -435,7 +462,41 @@ export const PropertiesWindowBridgeHost = () => {
               throw new Error('Generic connection settings are not available for Torrent downloads');
             }
             await assertCurrentAction(request);
-            await store.applyProperties(request.downloadId, safePatch);
+            if (LIVE_PROPERTIES_STATUSES.has(item.status)) {
+              if (!isLivePropertiesPatch(item, safePatch)) {
+                throw new Error(i18n.t($ => $.downloadTable.transferActive));
+              }
+              if (Object.prototype.hasOwnProperty.call(safePatch, 'speedLimit')) {
+                await store.setDownloadSpeedLimit(
+                  request.downloadId,
+                  safePatch.speedLimit ?? null,
+                );
+              }
+              if (item.isTorrent === true
+                && Object.prototype.hasOwnProperty.call(safePatch, 'torrentUploadLimit')) {
+                await store.setTorrentUploadLimit(
+                  request.downloadId,
+                  safePatch.torrentUploadLimit ?? null,
+                );
+              }
+              if (item.isTorrent === true
+                && (Object.prototype.hasOwnProperty.call(safePatch, 'torrentMaxPeers')
+                  || Object.prototype.hasOwnProperty.call(safePatch, 'torrentPeerSpeedLimit'))) {
+                const maxPeers = Object.prototype.hasOwnProperty.call(safePatch, 'torrentMaxPeers')
+                  ? safePatch.torrentMaxPeers == null ? null : String(safePatch.torrentMaxPeers)
+                  : item.torrentMaxPeers == null ? null : String(item.torrentMaxPeers);
+                const peerSpeedLimit = Object.prototype.hasOwnProperty.call(safePatch, 'torrentPeerSpeedLimit')
+                  ? safePatch.torrentPeerSpeedLimit ?? null
+                  : item.torrentPeerSpeedLimit ?? null;
+                await store.setTorrentPeerOptions(
+                  request.downloadId,
+                  maxPeers,
+                  peerSpeedLimit,
+                );
+              }
+            } else {
+              await store.applyProperties(request.downloadId, safePatch);
+            }
             break;
           }
           case 'set-torrent-file-selection': {

src/propertiesBridge.test.ts

@@ -34,7 +34,7 @@ import {
   sendPropertiesSnapshot,
   shouldAcceptPropertiesActionRequest,
 } from './propertiesBridge';
-import { copyEditablePropertiesPatch } from './components/PropertiesWindowBridgeHost';
+import { copyEditablePropertiesPatch, isLivePropertiesPatch } from './components/PropertiesWindowBridgeHost';
 
 describe('Properties window bridge', () => {
   it('keeps optional override resets explicit across the JSON IPC boundary', () => {
@@ -415,6 +415,41 @@ describe('Properties window bridge', () => {
     })).toThrow('read-only');
   });
 
+  it('allows only native live controls for active Properties saves', () => {
+    expect(isLivePropertiesPatch(
+      { isMedia: false, isTorrent: false, status: 'downloading' },
+      { speedLimit: '2M' },
+    )).toBe(true);
+    expect(isLivePropertiesPatch(
+      { isMedia: false, isTorrent: true, status: 'seeding' },
+      { torrentUploadLimit: '1M', torrentMaxPeers: 120, torrentPeerSpeedLimit: '256K' },
+    )).toBe(true);
+    expect(isLivePropertiesPatch(
+      { isMedia: false, isTorrent: true, status: 'seeding' },
+      { speedLimit: '2M' },
+    )).toBe(false);
+    expect(isLivePropertiesPatch(
+      { isMedia: false, isTorrent: true, status: 'verifying' },
+      { torrentUploadLimit: '1M' },
+    )).toBe(false);
+    expect(isLivePropertiesPatch(
+      { isMedia: false, isTorrent: true, status: 'waitingToSeed' },
+      { torrentMaxPeers: 120 },
+    )).toBe(false);
+    expect(isLivePropertiesPatch(
+      { isMedia: false, isTorrent: true, status: 'downloading' },
+      { torrentTrackers: 'https://tracker.example/announce' },
+    )).toBe(false);
+    expect(isLivePropertiesPatch(
+      { isMedia: true, isTorrent: false, status: 'downloading' },
+      { speedLimit: '2M' },
+    )).toBe(false);
+    expect(isLivePropertiesPatch(
+      { isMedia: false, isTorrent: false, status: 'paused' },
+      { speedLimit: '2M' },
+    )).toBe(false);
+  });
+
   it('keeps Torrent peer-cap telemetry distinct from generic connections', () => {
     expect(propertiesTorrentPeerLimit(undefined)).toBe(55);
     expect(propertiesTorrentPeerLimit(120)).toBe(120);