Hand the filter result back to the presenter, which owns m.apiFilters + the toast. This is needed because Roku promise callbacks run at component scope, not on the presenter class instance.

Returns the flat index of an item within the grid's content root. Called by GridItem via callFunc for O(1) index lookup (avoids O(N) child scan).

Hide TV Guide and return to grid

Render-thread filter load, collapsed from GetFiltersTask (Phase-4 pure-fetch Task collapse; see docs/dev/promises.md). Invoked by the presenter via callFunc so the body runs in component-m context, where fetchAsync + auto-abandon work — the presenter is a class, and the auto-abandon plugin only injects into components with onDestroy (which BaseGridView has). The presenter still owns m.apiFilters + the toast; this just fetches and hands the result back via deliverFilters().

Configure the library view from its route. Both in-app navigation and a deep link / cast supply the rich library node as route.context.item (the resolver passes the node it already validated), so there is no fetch here. A missing context node is therefore an unexpected route shape, not a deferred feature — warn rather than silently render nothing.

onDestroy: Full teardown releasing all resources before component removal Called automatically via JRScreen.beforeViewClose when sgRouter permanently closes this view.

A grid / genre / channel item was selected — navigate to its route (rich node as context). Non-navigable selections fall through to playback.

Bridge callback for presenter logo loading - forwards to presenter.onLogoLoaded() This is needed because Roku observers look for functions at component scope, not on class instances. Presenters should observe with "onPresenterLogoLoaded".

Called when presenterType field changes - creates the appropriate presenter

Forward a non-navigable selection to the playback launcher.

Handle channel focus from TV Guide

Handle channel selection from TV Guide

Prepare for data loading by stopping any active task, showing spinner, and hiding empty text

Full reset + reload of the grid. Used by optionsClosed (sort/filter/view change) and by the resume-time content-freshness check in onScreenShown (a delete elsewhere invalidated our cached content).

Show TV Guide (EPG) for LiveTV