I'm developing a codeshare app with monaco. how can i get keyboard event or how can i control when to emit? #2752

                       var global_id;
		
			var editor = monaco.editor.create(document.getElementById('container'), {
				value: [''].join('\n'),
				language: 'javascript'
			});
			
			var ws = new WebSocket('ws://');
			
			monaco.editor.setTheme('vs-dark');
			
                       //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
			//i listen change here, but i want to distinguish executeEdits event or keybord event
			editor.onDidChangeModelContent((event) => {
				 var changes=event.changes[0];
				 changes['uid']=global_id;
				 changes['mes_type']=1;
				 ws.send(JSON.stringify(changes));
			})
			
			
			console.log(ws.readyState);
			
			ws.onopen = () => {
				console.log('open connection');
			}

			ws.onclose = () => {
				console.log('close connection');
			}
			
			ws.onmessage = function(evt) {

				if(evt.data.constructor==Blob){
					
					const reader = new FileReader();
					reader.addEventListener('loadend', (e) => {
						console.log(e.srcElement.result.constructor);
						let text = JSON.parse(e.srcElement.result);
						console.log(text);
						switch (text['mes_type'])
						{ 
						  case 0:
							console.log("connect");
							global_id=text['uid'];
							editor.setValue(text['body'])
							break; 
						  case 1:
							console.log("message");
							if(global_id!=text['uid']){
								var options={range:text['range'], rangeLength:['range'], text:text['text'], rangeOffset:text['rangeOffset'], forceMoveMarkers:true,};
								editor.executeEdits(editor.root, [options]);
							}
							break; 
						}
						console.log(global_id)
					  
					});
					
					reader.readAsText(evt.data);

				}
				else if(evt.data.constructor==String){
					console.log("in text")
					let text=JSON.parse(evt.data);
					console.log(text)
					if(global_id!=text['uid']){
						var options={range:text['range'], rangeLength:['range'], text:text['text'], rangeOffset:text['rangeOffset'], forceMoveMarkers:true,};
						editor.executeEdits(editor.root, [options]);
					}
				}
			};