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[eric] views: gate app runtime/start behind previewSettled so spam-switching doesn't queue a pile of vite boots that stick the landed app on Initializing agent

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ciregenz
2026-06-12 18:21:31 -07:00
parent bfa7140907
commit 0e557be7b8
1 changed files with 7 additions and 2 deletions
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frontend/src/app/pages/Views/ViewEditor.tsx
+7 -2
View File
@@ -872,13 +872,18 @@ const ViewEditor: React.FC<Props> = ({ output }) => {
}, [workspaceId, runtimeShouldRun, appendTerminalLine]);
// One-shot trigger: first visit to Preview/Terminal flips runtimeShouldRun true; never flips back.
// Gated on previewSettled (same 250ms as the webview): each runtime/start boots a vite
// dev server serialized behind a global lock, so spam-clicking heavy apps used to queue a
// pile of vite boots that saturated the backend and stuck the app you landed on (preview
// frozen + "Initializing agent..."). Waiting out the debounce means only apps you actually
// stay on boot a runtime.
useEffect(() => {
if (!workspaceId) return;
if (!workspaceId || !previewSettled) return;
if (runtimeShouldRun) return;
const wantsRuntime = activeTab === TAB_PREVIEW || activeTab === TAB_TERMINAL;
if (!wantsRuntime) return;
setRuntimeShouldRun(true);
}, [workspaceId, activeTab, runtimeShouldRun, TAB_PREVIEW, TAB_TERMINAL]);
}, [workspaceId, activeTab, runtimeShouldRun, previewSettled, TAB_PREVIEW, TAB_TERMINAL]);
// Prefer the Vite dev server URL; fall back to legacy /serve/. New-mode pre-Vite renders the install placeholder (legacy URL 404s).
const showInstallPlaceholder = isNewModeRuntime && !frontendUrl;