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Horizontally expand text selection toolbar buttons in overflow menu (#144391)
## Description This PR expands the items displayed in the overflow menu of a `TextSelectionToolbar` making buttons clickable in the blank area. | Before | After | |--------|--------| | Each item has its own width | All items expand horizontally | | ![Capture dâeÌcran 2024-02-29 aÌ 14 43 57](https://github.com/flutter/flutter/assets/840911/f7379eef-9185-4cc4-bf14-e4c916c432b1) | ![Capture dâeÌcran 2024-02-29 aÌ 14 40 47](https://github.com/flutter/flutter/assets/840911/bff272cd-9fe2-4f07-adaf-61edef03d26e) | ## Related Issue Fixes https://github.com/flutter/flutter/issues/144089. ## Tests Adds 1 tests.
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@ -262,6 +262,7 @@ class AdaptiveTextSelectionToolbar extends StatelessWidget {
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buttons.add(TextSelectionToolbarTextButton(
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padding: TextSelectionToolbarTextButton.getPadding(i, buttonItems.length),
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onPressed: buttonItem.onPressed,
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alignment: AlignmentDirectional.centerStart,
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child: Text(getButtonLabel(context, buttonItem)),
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));
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}
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@ -267,6 +267,7 @@ class _TextSelectionControlsToolbarState extends State<_TextSelectionControlsToo
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children: itemDatas.asMap().entries.map((MapEntry<int, _TextSelectionToolbarItemData> entry) {
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return TextSelectionToolbarTextButton(
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padding: TextSelectionToolbarTextButton.getPadding(entry.key, itemDatas.length),
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alignment: AlignmentDirectional.centerStart,
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onPressed: entry.value.onPressed,
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child: Text(entry.value.label),
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);
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@ -569,6 +569,40 @@ class _RenderTextSelectionToolbarItemsLayout extends RenderBox with ContainerRen
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size = nextSize;
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}
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// Horizontally expand the children when the menu overflows so they can react to
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// pointer events into their whole area.
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void _resizeChildrenWhenOverflow() {
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if (!overflowOpen) {
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return;
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}
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final RenderBox navButton = firstChild!;
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int i = -1;
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visitChildren((RenderObject renderObjectChild) {
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final RenderBox child = renderObjectChild as RenderBox;
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final ToolbarItemsParentData childParentData = child.parentData! as ToolbarItemsParentData;
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i++;
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// Ignore the navigation button.
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if (renderObjectChild == navButton) {
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return;
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}
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// There is no need to update children that won't be painted.
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if (!_shouldPaintChild(renderObjectChild, i)) {
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childParentData.shouldPaint = false;
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return;
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}
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child.layout(
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BoxConstraints.tightFor(width: size.width),
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parentUsesSize: true,
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);
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});
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}
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@override
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void performLayout() {
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_lastIndexThatFits = -1;
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@ -579,6 +613,7 @@ class _RenderTextSelectionToolbarItemsLayout extends RenderBox with ContainerRen
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_layoutChildren();
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_placeChildren();
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_resizeChildrenWhenOverflow();
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}
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@override
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@ -291,4 +291,64 @@ void main() {
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);
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});
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}
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testWidgets('Overflowed menu expands children horizontally', (WidgetTester tester) async {
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// Regression test for https://github.com/flutter/flutter/issues/144089.
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late StateSetter setState;
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final List<Widget> children = List<Widget>.generate(7, (int i) => const TestBox());
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await tester.pumpWidget(
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MaterialApp(
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home: Scaffold(
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body: StatefulBuilder(
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builder: (BuildContext context, StateSetter setter) {
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setState = setter;
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return TextSelectionToolbar(
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anchorAbove: const Offset(50.0, 100.0),
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anchorBelow: const Offset(50.0, 200.0),
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children: children,
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);
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},
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),
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),
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),
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);
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// All children fit on the screen, so they are all rendered.
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expect(find.byType(TestBox), findsNWidgets(children.length));
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expect(findOverflowButton(), findsNothing);
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const String short = 'Short';
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const String medium = 'Medium length';
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const String long = 'Long label in the overflow menu';
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// Adding several children makes the menu overflow.
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setState(() {
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children.addAll(const <Text>[
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Text(short),
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Text(medium),
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Text(long),
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]);
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});
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await tester.pumpAndSettle();
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expect(findOverflowButton(), findsOneWidget);
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// Tap the overflow button to show the overflow menu.
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await tester.tap(findOverflowButton());
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await tester.pumpAndSettle();
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expect(find.byType(TestBox), findsNothing);
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expect(find.byType(Text), findsNWidgets(3));
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expect(findOverflowButton(), findsOneWidget);
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Finder findToolbarContainer() {
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return find.byWidgetPredicate((Widget w) => '${w.runtimeType}' == '_TextSelectionToolbarContainer');
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}
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expect(findToolbarContainer(), findsAtLeastNWidgets(1));
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// Buttons have their width set to the container width.
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final double overflowMenuWidth = tester.getRect(findToolbarContainer()).width;
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expect(tester.getRect(find.text(long)).width, overflowMenuWidth);
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expect(tester.getRect(find.text(medium)).width, overflowMenuWidth);
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expect(tester.getRect(find.text(short)).width, overflowMenuWidth);
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});
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}
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