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fix: selection error in edge

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This commit is contained in:
Lucas.Xu 2022-08-09 19:43:28 +08:00
parent 215587a507
commit 6a27c490aa
1 changed files with 5 additions and 4 deletions
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9
frontend/app_flowy/packages/flowy_editor/lib/service/selection_service.dart
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@ -339,9 +339,10 @@ class _FlowySelectionState extends State<FlowySelection>
start: isDownward ? start : end, end: isDownward ? end : start);
debugPrint('[_onPanUpdate] isDownward = $isDownward, $selection');
editorState.updateCursorSelection(selection);
_scrollUpOrDownIfNeeded(panEndOffset!, isDownward);
}
_scrollUpOrDownIfNeeded(panEndOffset!);
_showDebugLayerIfNeeded();
}
@ -466,7 +467,7 @@ class _FlowySelectionState extends State<FlowySelection>
return NodeIterator(stateTree, startNode, endNode).toList();
}
void _scrollUpOrDownIfNeeded(Offset offset) {
void _scrollUpOrDownIfNeeded(Offset offset, bool isDownward) {
final dy = editorState.service.scrollService?.dy;
if (dy == null) {
assert(false, 'Dy could not be null');
@ -478,10 +479,10 @@ class _FlowySelectionState extends State<FlowySelection>
/// TODO: It is necessary to calculate the relative speed
/// according to the gap and move forward more gently.
final distance = 10.0;
if (offset.dy <= topLimit) {
if (offset.dy <= topLimit && !isDownward) {
// up
editorState.service.scrollService?.scrollTo(dy - distance);
} else if (offset.dy >= bottomLimit) {
} else if (offset.dy >= bottomLimit && isDownward) {
//down
editorState.service.scrollService?.scrollTo(dy + distance);
}