Add text input operations

native/src/widget/text_input.rs

@@ -233,6 +233,7 @@ where
         let state = tree.state.downcast_mut::<State>();
 
         operation.focusable(state, self.id.as_ref().map(|id| &id.0));
+        operation.text_input(state, self.id.as_ref().map(|id| &id.0));
     }
 
     fn on_event(
@@ -337,6 +338,32 @@ pub fn focus<Message: 'static>(id: Id) -> Command<Message> {
     Command::widget(operation::focusable::focus(id.0))
 }
 
+/// Produces a [`Command`] that moves the cursor of the [`TextInput`] with the given [`Id`] to the
+/// end.
+pub fn move_cursor_to_end<Message: 'static>(id: Id) -> Command<Message> {
+    Command::widget(operation::text_input::move_cursor_to_end(id.0))
+}
+
+/// Produces a [`Command`] that moves the cursor of the [`TextInput`] with the given [`Id`] to the
+/// front.
+pub fn move_cursor_to_front<Message: 'static>(id: Id) -> Command<Message> {
+    Command::widget(operation::text_input::move_cursor_to_front(id.0))
+}
+
+/// Produces a [`Command`] that moves the cursor of the [`TextInput`] with the given [`Id`] to the
+/// provided position.
+pub fn move_cursor_to<Message: 'static>(
+    id: Id,
+    position: usize,
+) -> Command<Message> {
+    Command::widget(operation::text_input::move_cursor_to(id.0, position))
+}
+
+/// Produces a [`Command`] that selects all the content of the [`TextInput`] with the given [`Id`].
+pub fn select_all<Message: 'static>(id: Id) -> Command<Message> {
+    Command::widget(operation::text_input::select_all(id.0))
+}
+
 /// Computes the layout of a [`TextInput`].
 pub fn layout<Renderer>(
     renderer: &Renderer,
@@ -1001,6 +1028,24 @@ impl operation::Focusable for State {
     }
 }
 
+impl operation::TextInput for State {
+    fn move_cursor_to_front(&mut self) {
+        State::move_cursor_to_front(self)
+    }
+
+    fn move_cursor_to_end(&mut self) {
+        State::move_cursor_to_end(self)
+    }
+
+    fn move_cursor_to(&mut self, position: usize) {
+        State::move_cursor_to(self, position)
+    }
+
+    fn select_all(&mut self) {
+        State::select_all(self)
+    }
+}
+
 mod platform {
     use crate::keyboard;