Add window::set_text_input_enabled() and window::is_text_input_enabled()

src/platform/window_sdl.rs

@@ -485,6 +485,19 @@ impl Window {
         let sdl_keycode = Keycode::from_scancode(sdl_scancode, SDL_KMOD_NONE, false)?;
         from_sdl_keycode(sdl_keycode)
     }
+
+    pub fn set_text_input_enabled(&mut self, text_input_enabled: bool) {
+        let text_input = self.video_sys.text_input();
+        if text_input_enabled {
+            text_input.start(&self.sdl_window);
+        } else {
+            text_input.stop(&self.sdl_window);
+        }
+    }
+
+    pub fn is_text_input_enabled(&self) -> bool {
+        self.video_sys.text_input().is_active(&self.sdl_window)
+    }
 }
 
 pub fn handle_events<S, E>(ctx: &mut Context, state: &mut S) -> result::Result<(), E>

src/window.rs

@@ -446,6 +446,21 @@ pub fn is_key_repeat_enabled(ctx: &Context) -> bool {
     ctx.window.is_key_repeat_enabled()
 }
 
+/// Sets whether or not text input is enabled.
+///
+/// When enabled, typing fires [`TextInput`](crate::Event::TextInput) events carrying the
+/// composed text (and, on platforms with an IME, activates it). When disabled, keystrokes
+/// still fire [`KeyPressed`](crate::Event::KeyPressed)/[`KeyReleased`](crate::Event::KeyReleased)
+/// but produce no `TextInput`.
+pub fn set_text_input_enabled(ctx: &mut Context, text_input_enabled: bool) {
+    ctx.window.set_text_input_enabled(text_input_enabled);
+}
+
+/// Returns whether or not text input is currently enabled.
+pub fn is_text_input_enabled(ctx: &Context) -> bool {
+    ctx.window.is_text_input_enabled()
+}
+
 /// Represents the position of a window on the screen.
 #[non_exhaustive]
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]