| 36 | * platforms, and ignores emulated mouse events on touch devices. |
| 37 | */ |
| 38 | export function useMove(props: MoveEvents): MoveResult { |
| 39 | let {onMoveStart, onMove, onMoveEnd} = props; |
| 40 | |
| 41 | let state = useRef<{ |
| 42 | didMove: boolean; |
| 43 | lastPosition: {pageX: number; pageY: number} | null; |
| 44 | id: number | null; |
| 45 | }>({didMove: false, lastPosition: null, id: null}); |
| 46 | |
| 47 | let {addGlobalListener, removeGlobalListener} = useGlobalListeners(); |
| 48 | |
| 49 | let move = useCallback( |
| 50 | (originalEvent: EventBase, pointerType: PointerType, deltaX: number, deltaY: number) => { |
| 51 | if (deltaX === 0 && deltaY === 0) { |
| 52 | return; |
| 53 | } |
| 54 | |
| 55 | if (!state.current.didMove) { |
| 56 | state.current.didMove = true; |
| 57 | onMoveStart?.({ |
| 58 | type: 'movestart', |
| 59 | pointerType, |
| 60 | shiftKey: originalEvent.shiftKey, |
| 61 | metaKey: originalEvent.metaKey, |
| 62 | ctrlKey: originalEvent.ctrlKey, |
| 63 | altKey: originalEvent.altKey |
| 64 | }); |
| 65 | } |
| 66 | onMove?.({ |
| 67 | type: 'move', |
| 68 | pointerType, |
| 69 | deltaX: deltaX, |
| 70 | deltaY: deltaY, |
| 71 | shiftKey: originalEvent.shiftKey, |
| 72 | metaKey: originalEvent.metaKey, |
| 73 | ctrlKey: originalEvent.ctrlKey, |
| 74 | altKey: originalEvent.altKey |
| 75 | }); |
| 76 | }, |
| 77 | [onMoveStart, onMove, state] |
| 78 | ); |
| 79 | let moveEvent = useEffectEvent(move); |
| 80 | |
| 81 | let end = useCallback( |
| 82 | (originalEvent: EventBase, pointerType: PointerType) => { |
| 83 | restoreTextSelection(); |
| 84 | if (state.current.didMove) { |
| 85 | onMoveEnd?.({ |
| 86 | type: 'moveend', |
| 87 | pointerType, |
| 88 | shiftKey: originalEvent.shiftKey, |
| 89 | metaKey: originalEvent.metaKey, |
| 90 | ctrlKey: originalEvent.ctrlKey, |
| 91 | altKey: originalEvent.altKey |
| 92 | }); |
| 93 | } |
| 94 | }, |
| 95 | [onMoveEnd, state] |