let modeVersion = 0;

let currentInitId = null;

async function activateMode(instanceId, mode) { const initId = Symbol(); currentInitId = initId;

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

// finalize finalizeModeActivation(instanceId, mode); } Subscription cleanup:

Viewerframe Mode Refresh Hot -

let modeVersion = 0;

let currentInitId = null;

async function activateMode(instanceId, mode) { const initId = Symbol(); currentInitId = initId; viewerframe mode refresh hot

function mountViewer() { const unsub = eventBus.subscribe('mode-change', handler); onUnmount(() => unsub()); } Versioned async operations: let modeVersion = 0; let currentInitId = null;

// finalize finalizeModeActivation(instanceId, mode); } Subscription cleanup: let modeVersion = 0