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opt placeholder selection

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Signed-off-by: dom <githubaccount56556@proton.me>
This commit is contained in:
dom
2026-07-23 20:51:23 +08:00
parent 87c7b84e5c
commit b8321c1ef2
1 changed files with 21 additions and 1 deletions
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22
lib/scripts/selection_placeholder.patch
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@@ -119,7 +119,7 @@ index 09fba7fc4fb..57ee469358e 100644
void computeSemanticsInformation(
List<InlineSpanSemanticsInformation> collector, {
diff --git a/packages/flutter/lib/src/rendering/paragraph.dart b/packages/flutter/lib/src/rendering/paragraph.dart
index 0be1766148e..56ff3b367ac 100644
index 97a41dafb8d..00672540c54 100644
--- a/packages/flutter/lib/src/rendering/paragraph.dart
+++ b/packages/flutter/lib/src/rendering/paragraph.dart
@@ -502,13 +502,16 @@ class RenderParagraph extends RenderBox
@@ -187,6 +187,26 @@ index 0be1766148e..56ff3b367ac 100644
final int start = math.min(_textSelectionStart!.offset, _textSelectionEnd!.offset);
final int end = math.max(_textSelectionStart!.offset, _textSelectionEnd!.offset);
return SelectedContent(plainText: fullText.substring(start, end));
@@ -1934,9 +1953,16 @@ class _SelectableFragment
direction: paragraph.textDirection,
);
- final TextPosition position = _clampTextPosition(
- paragraph.getPositionForOffset(adjustedOffset),
- );
+ final TextPosition position;
+ if (rawText != null) {
+ position = _clampTextPosition(
+ adjustedOffset.dx * 2 > _rect.left + _rect.right
+ ? TextPosition(offset: range.end)
+ : TextPosition(offset: range.start),
+ );
+ } else {
+ position = _clampTextPosition(paragraph.getPositionForOffset(adjustedOffset));
+ }
_setSelectionPosition(position, isEnd: isEnd);
if (position.offset == range.end) {
return SelectionResult.next;
diff --git a/packages/flutter/lib/src/widgets/widget_span.dart b/packages/flutter/lib/src/widgets/widget_span.dart
index 09da3b76525..4a83efb0392 100644
--- a/packages/flutter/lib/src/widgets/widget_span.dart