Viewerframe Mode Refresh Hot Apr 2026

let currentInitId = null;

const setModeDebounced = debounce((m) => setMode(m), 150); Unique instance IDs: viewerframe mode refresh hot

let modeVersion = 0;

// atomically set mode in store store.setMode(instanceId, mode); let currentInitId = null

function mountViewer() { const unsub = eventBus.subscribe('mode-change', handler); onUnmount(() => unsub()); } Versioned async operations: const setModeDebounced = debounce((m) =&gt

function setModeAsync(mode) { const v = ++modeVersion; return doAsyncSetup(mode).then(result => { if (v !== modeVersion) return; // ignore stale applyMode(result); }); } Debounce/coalesce: