Press n or j to go to the next uncovered block, b, p or k for the previous block.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 | 2x 2x 2x 1x 4x 2x 2x 2x 1x 1x 1x 2x 3x 3x 3x 2x 1x 1x 3x 4x | import _ from 'lodash'; import { IDropMenuState } from './DropMenu'; export function onExpand(state: IDropMenuState): IDropMenuState { const { selectedIndices } = state; const focusedIndex = _.last(selectedIndices); return { ...state, isExpanded: true, focusedIndex: _.isNil(focusedIndex) ? null : focusedIndex, }; } export function onCollapse(state: IDropMenuState): IDropMenuState { return { ...state, isExpanded: false, }; } export function onSelect( state: IDropMenuState, optionIndex: number ): IDropMenuState { return { ...state, selectedIndices: [optionIndex], isExpanded: false, }; } export function onFocusNext(state: IDropMenuState): IDropMenuState { const { focusedIndex } = state; let nextFocusedIndex = focusedIndex; if (_.isNull(focusedIndex)) { nextFocusedIndex = 0; } else if (_.isNumber(focusedIndex)) { nextFocusedIndex = focusedIndex + 1; } return { ...state, focusedIndex: nextFocusedIndex, }; } export function onFocusPrev(state: IDropMenuState): IDropMenuState { const { focusedIndex } = state; let nextFocusedIndex = focusedIndex; if (_.isNull(focusedIndex) || focusedIndex === 0) { nextFocusedIndex = null; } else if (_.isNumber(focusedIndex)) { nextFocusedIndex = focusedIndex - 1; } return { ...state, focusedIndex: nextFocusedIndex, }; } export function onFocusOption( state: IDropMenuState, optionIndex: number ): IDropMenuState { return { ...state, focusedIndex: optionIndex, }; } |