fix(tab-bar): prevent keyboard controller memory leak on rapid mount/unmount #30906
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Issue number: resolves internal
What is the current behavior?
When
ion-tab-baris rapidly mounted and unmounted, a race condition in connectedCallback can cause the keyboard controller to be created after the component has been disconnected. This results in orphaned event listeners (keyboardWillShow,keyboardWillHide) on the window object that are never cleaned up, causing a memory leak.What is the new behavior?
The component now tracks its connection state with an
isConnectedflag. After the async keyboard controller initialization completes, the component checks if it's still connected before assigning the controller. If the component was disconnected during initialization, the controller is immediately destroyed, preventing memory leaks.Does this introduce a breaking change?
Other information
Current dev build: