Draft `input_method` support

1 files changed, 17 insertions, 2 deletions

diff --git a/widget/src/scrollable.rs b/widget/src/scrollable.rs
index 312aee29..7df7a0e5 100644
--- a/widget/src/scrollable.rs
+++ b/widget/src/scrollable.rs
@@ -33,8 +33,9 @@ use crate::core::widget::operation::{self, Operation};
 use crate::core::widget::tree::{self, Tree};
 use crate::core::window;
 use crate::core::{
-    self, Background, Clipboard, Color, Element, Event, Layout, Length,
-    Padding, Pixels, Point, Rectangle, Shell, Size, Theme, Vector, Widget,
+    self, Background, CaretInfo, Clipboard, Color, Element, Event, Layout,
+    Length, Padding, Pixels, Point, Rectangle, Shell, Size, Theme, Vector,
+    Widget,
 };
 use crate::runtime::task::{self, Task};
 use crate::runtime::Action;
@@ -729,6 +730,7 @@ where
                 let translation =
                     state.translation(self.direction, bounds, content_bounds);
 
+                let children_may_have_caret = shell.caret_info().is_none();
                 self.content.as_widget_mut().update(
                     &mut tree.children[0],
                     event.clone(),
@@ -743,6 +745,19 @@ where
                         ..bounds
                     },
                 );
+
+                if children_may_have_caret {
+                    if let Some(caret_info) = shell.caret_info() {
+                        shell.update_caret_info(Some(CaretInfo {
+                            position: Point::new(
+                                caret_info.position.x - translation.x,
+                                caret_info.position.y - translation.y,
+                            ),
+                            input_method_allowed: caret_info
+                                .input_method_allowed,
+                        }));
+                    }
+                }
             };
 
             if matches!(