pinafore/routes/_store/timelineComputations.js
2018-02-11 09:37:13 -08:00

21 lines
992 B
JavaScript

function computeForTimeline (store, key) {
store.compute(key, ['currentTimelineData'], (currentTimelineData) => currentTimelineData[key])
}
export function timelineComputations (store) {
store.compute('currentTimelineData', ['currentInstance', 'currentTimeline', 'timelines'],
(currentInstance, currentTimeline, timelines) => {
return ((timelines && timelines[currentInstance]) || {})[currentTimeline] || {}
})
computeForTimeline(store, 'timelineItemIds')
computeForTimeline(store, 'runningUpdate')
computeForTimeline(store, 'initialized')
computeForTimeline(store, 'lastFocusedElementSelector')
computeForTimeline(store, 'ignoreBlurEvents')
store.compute('firstTimelineItemId', ['timelineItemIds'], (timelineItemIds) => timelineItemIds && timelineItemIds.length && timelineItemIds[0])
store.compute('lastTimelineItemId', ['timelineItemIds'], (timelineItemIds) => timelineItemIds && timelineItemIds.length && timelineItemIds[timelineItemIds.length - 1])
}