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Cache caret parameters (#38821)

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Gary Qian 2019-08-20 10:21:30 -07:00 committed by GitHub
parent b7abf56a0b
commit 9da68fcdaf
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packages/flutter/lib/src/painting/text_painter.dart
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@ -782,6 +782,10 @@ class TextPainter {
offset: rect != null ? Offset(rect.left, rect.top) : _emptyOffset,
fullHeight: rect != null ? rect.bottom - rect.top : null,
);
// Cache the input parameters to prevent repeat work later.
_previousCaretPosition = position;
_previousCaretPrototype = caretPrototype;
}
/// Returns a list of rects that bound the given selection.