8000 CGEvent set_flags does not work randomly · Issue #721 · servo/core-foundation-rs · GitHub
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CGEvent set_flags does not work randomly #721
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@ChenghaoQ

Description

@ChenghaoQ

I found sometimes the CGEvent.set_flags does not set flags correctly


 fn set_modifier_flag(&mut self, key: &String, key_event: CGEvent, press: bool) -> CGEvent {

        if self.modifier_map.contains_key(key) {
            let event_flag: &CGEventFlags = self.modifier_map.get(key).unwrap();
            if press {
                self.flag_holder.lock().unwrap().insert(*event_flag);
                key_event.set_flags(*self.flag_holder.lock().unwrap());
                
            } else {
                self.flag_holder.lock().unwrap().remove(*event_flag);
                key_event.set_flags(*self.flag_holder.lock().unwrap());
            }
        }

        // the code below is to make sure the key_event flags had been set correctly
        let mut repeat_setter_counter = 0;
        while key_event.get_flags() != *self.flag_holder.lock().unwrap() && repeat_setter_counter < 10 {
            key_event.set_flags(*self.flag_holder.lock().unwrap());
            repeat_setter_counter += 1;
            std::thread::sleep(std::time::Duration::from_millis(1));
        }

        key_event
    }

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