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Fix nullability of getFullHeightForCaret (#145554)
Fixes https://github.com/flutter/flutter/issues/145507. Looks like this was accidentally migrated to nullable all the way back when we switched to NNBD.
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@ -1352,7 +1352,7 @@ class TextPainter {
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/// {@endtemplate}
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///
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/// Valid only after [layout] has been called.
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double? getFullHeightForCaret(TextPosition position, Rect caretPrototype) {
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double getFullHeightForCaret(TextPosition position, Rect caretPrototype) {
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final TextBox textBox = _getOrCreateLayoutTemplate().getBoxesForRange(0, 1, boxHeightStyle: ui.BoxHeightStyle.strut).single;
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return textBox.toRect().height;
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}
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@ -1798,7 +1798,7 @@ class RenderEditable extends RenderBox with RelayoutWhenSystemFontsChangeMixin,
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switch (defaultTargetPlatform) {
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case TargetPlatform.iOS:
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case TargetPlatform.macOS:
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final double fullHeight = _textPainter.getFullHeightForCaret(caretPosition, caretPrototype) ?? _textPainter.preferredLineHeight;
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final double fullHeight = _textPainter.getFullHeightForCaret(caretPosition, caretPrototype);
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final double heightDiff = fullHeight - caretRect.height;
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// Center the caret vertically along the text.
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caretRect = Rect.fromLTWH(
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@ -649,7 +649,7 @@ class RenderParagraph extends RenderBox with ContainerRenderObjectMixin<RenderBo
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}
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Offset _getOffsetForPosition(TextPosition position) {
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return getOffsetForCaret(position, Rect.zero) + Offset(0, getFullHeightForCaret(position) ?? 0.0);
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return getOffsetForCaret(position, Rect.zero) + Offset(0, getFullHeightForCaret(position));
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}
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@override
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@ -952,7 +952,7 @@ class RenderParagraph extends RenderBox with ContainerRenderObjectMixin<RenderBo
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/// {@macro flutter.painting.textPainter.getFullHeightForCaret}
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///
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/// Valid only after [layout].
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double? getFullHeightForCaret(TextPosition position) {
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double getFullHeightForCaret(TextPosition position) {
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assert(!debugNeedsLayout);
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_layoutTextWithConstraints(constraints);
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return _textPainter.getFullHeightForCaret(position, Rect.zero);
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@ -380,7 +380,7 @@ void main() {
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final double caretHeight = painter.getFullHeightForCaret(
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const ui.TextPosition(offset: 0),
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ui.Rect.zero,
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)!;
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);
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expect(caretHeight, 50.0);
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painter.dispose();
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}, skip: isBrowser && !isCanvasKit); // https://github.com/flutter/flutter/issues/56308
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@ -121,7 +121,7 @@ void main() {
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);
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layout(paragraph);
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final double height5 = paragraph.getFullHeightForCaret(const TextPosition(offset: 5))!;
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final double height5 = paragraph.getFullHeightForCaret(const TextPosition(offset: 5));
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expect(height5, equals(10.0));
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});
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