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IME: Handle composition events to show suggestion on web (#278)

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* Handle composition message to show suggestion.

* CI check

* Apply suggestions from code review

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>

* Some minor changes

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
This commit is contained in:
Lin Han
2021-04-13 02:57:14 +08:00
committed by GitHub
parent 0353f40dd5
commit 20bf09560e
3 changed files with 59 additions and 8 deletions
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21
egui_web/src/lib.rs
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@@ -708,22 +708,27 @@ fn install_text_agent(runner_ref: &AppRunnerRef) -> Result<(), JsValue> {
let input_clone = input.clone();
let runner_ref = runner_ref.clone();
let on_compositionend = Closure::wrap(Box::new(move |event: web_sys::CompositionEvent| {
match event.type_().as_ref() {
let mut runner_lock = runner_ref.0.lock();
let opt_event = match event.type_().as_ref() {
"compositionstart" => {
is_composing.set(true);
input_clone.set_value("");
Some(egui::Event::CompositionStart)
}
"compositionend" => {
is_composing.set(false);
input_clone.set_value("");
if let Some(text) = event.data() {
let mut runner_lock = runner_ref.0.lock();
runner_lock.input.raw.events.push(egui::Event::Text(text));
runner_lock.needs_repaint.set_true();
}
event.data().map(egui::Event::CompositionEnd)
}
"compositionupdate" => {}
_s => panic!("Unknown type"),
"compositionupdate" => event.data().map(egui::Event::CompositionUpdate),
s => {
console_error(format!("Unknown composition event type: {:?}", s));
None
}
};
if let Some(event) = opt_event {
runner_lock.input.raw.events.push(event);
runner_lock.needs_repaint.set_true();
}
}) as Box<dyn FnMut(_)>);
let f = on_compositionend.as_ref().unchecked_ref();