Improve robustness of TextAgent in eframe/web

crates/eframe/src/web/app_runner.rs

@@ -395,7 +395,10 @@ impl AppRunner {
 
         if self.has_focus() {
             // The eframe app has focus.
-            if ime.is_some() {
+            if let Some(ime) = ime {
+                if ime.should_interrupt_composition {
+                    self.text_agent.interrupt_ime_composition();
+                }
                 // We are editing text: give the focus to the text agent.
                 self.text_agent.focus();
             } else {
@@ -415,6 +418,12 @@ impl AppRunner {
             );
         }
     }
+
+    #[cfg(debug_assertions)]
+    pub(crate) fn update_custom_debug_information(&mut self) {
+        self.text_agent
+            .update_custom_debug_information(&mut self.input);
+    }
 }
 
 // ----------------------------------------------------------------------------

crates/eframe/src/web/events.rs

@@ -30,6 +30,11 @@ pub(crate) fn paint_and_schedule(runner_ref: &WebRunner) -> Result<(), JsValue>
 
 fn paint_if_needed(runner: &mut AppRunner) {
     if runner.needs_repaint.needs_repaint() {
+        #[cfg(debug_assertions)]
+        if !runner.input.raw.events.is_empty() {
+            runner.update_custom_debug_information();
+        }
+
         if runner.has_outstanding_paint_data() {
             // We have already run the logic, e.g. in an on-click event,
             // so let's only present the results:
@@ -190,11 +195,6 @@ pub(crate) fn on_keydown(event: web_sys::KeyboardEvent, runner: &mut AppRunner)
         return;
     }
 
-    if event.is_composing() || event.key_code() == 229 {
-        // https://web.archive.org/web/20200526195704/https://www.fxsitecompat.dev/en-CA/docs/2018/keydown-and-keyup-events-are-now-fired-during-ime-composition/
-        return;
-    }
-
     let modifiers = modifiers_from_kb_event(&event);
     runner.input.raw.modifiers = modifiers;