fix: 🐛 Resolve issue where long tooltip text was rendered outside the screen bounds

Author: Sahil-Simform

CHANGELOG.md

@@ -4,6 +4,7 @@
 - Fixed [#587](https://github.com/SimformSolutionsPvtLtd/showcaseview/issues/587) - Fixed ShowcaseView.withWidget container positioning issues on web
 - Fixed [#588](https://github.com/SimformSolutionsPvtLtd/showcaseview/issues/588) & [#593](https://github.com/SimformSolutionsPvtLtd/showcaseview/issues/593) - Fixed incorrect ShowcaseView callback scope by adding optional scope parameter
 - Feature [#600](https://github.com/SimformSolutionsPvtLtd/showcaseview/issues/600) - Added dynamic onComplete callback registration with `addOnCompleteCallback` and `removeOnCompleteCallback` methods
+- Fixed [#577](https://github.com/SimformSolutionsPvtLtd/showcaseview/issues/577) - Resolve issue where long tooltip text was rendered outside the screen bounds 
 
 ## [5.0.1]
 

lib/src/tooltip/render_position_delegate.dart

@@ -208,15 +208,31 @@ class _RenderPositionDelegate extends RenderBox
       ),
     );
 
-    // Dry layout main tooltip content
+    // Dry layout main tooltip content with tight constraints to get natural size
+    // Using tightFor() with no parameters allows content to size naturally
     TooltipLayoutSlot.tooltipBox.getObjectManager?.performDryLayout(
-      const BoxConstraints.tightFor(),
+      const BoxConstraints(),
     );
+    var tooltipBoxWidth = _toolTipBoxSize.width;
 
-    // Dry layout action box (if exists)
+    // If content exceeds available width, constrain it
+    if (tooltipBoxWidth > _availableScreenWidth) {
+      TooltipLayoutSlot.tooltipBox.getObjectManager?.performDryLayout(
+        BoxConstraints(maxWidth: _availableScreenWidth),
+      );
+      tooltipBoxWidth = _toolTipBoxSize.width;
+    }
+
+    // Dry layout action box (if exists) with same strategy
     TooltipLayoutSlot.actionBox.getObjectManager?.performDryLayout(
-      const BoxConstraints.tightFor(),
+      const BoxConstraints(),
     );
+    var actionBoxWidth = _actionBoxSize.width;
+    if (actionBoxWidth > _availableScreenWidth) {
+      TooltipLayoutSlot.actionBox.getObjectManager?.performDryLayout(
+        BoxConstraints(maxWidth: _availableScreenWidth),
+      );
+    }
     _minimumActionBoxSize = _actionBoxSize;
   }