Add Response::request_focus and surrender_focus

CHANGELOG.md

@@ -9,6 +9,7 @@ NOTE: [`eframe`](eframe/CHANGELOG.md), [`egui_web`](egui_web/CHANGELOG.md) and [
 
 ### Added ⭐
 * Make labels interactive with `Label::sense(Sense::click())`.
+* Add `Response::request_focus` and `Response::surrender_focus`.
 
 ### Fixed 🐛
 * Fix [defocus-bug on touch screens](https://github.com/emilk/egui/issues/288)

egui/src/memory.rs

@@ -300,11 +300,14 @@ impl Memory {
         self.interaction.focus.id == Some(id)
     }
 
-    /// Give keyboard focus to a specific widget
+    /// Give keyboard focus to a specific widget.
+    /// See also [`crate::Response::request_focus`].
     pub fn request_focus(&mut self, id: Id) {
         self.interaction.focus.id = Some(id);
     }
 
+    /// Surrender keyboard focus for a specific widget.
+    /// See also [`crate::Response::surrender_focus`].
     #[inline(always)]
     pub fn surrender_focus(&mut self, id: Id) {
         if self.interaction.focus.id == Some(id) {

egui/src/response.rs

@@ -199,6 +199,16 @@ impl Response {
         self.lost_focus()
     }
 
+    /// Request that this widget get keyboard focus.
+    pub fn request_focus(&self) {
+        self.ctx.memory().request_focus(self.id)
+    }
+
+    /// Surrender keyboard focus for this widget.
+    pub fn surrender_focus(&self) {
+        self.ctx.memory().surrender_focus(self.id)
+    }
+
     /// The widgets is being dragged.
     ///
     /// To find out which button(s), query [`crate::PointerState::button_down`]