window.onload = function(){
    InitWS();
}

aROOM = 0
function joinTheRoom(){
    aROOM = document.getElementById('roomid').value;
    var Datas = {'tag': 'setRoom', 'msg': aROOM, 'opt': true};
    ws.send(JSON.stringify(Datas));
    console.log("Join to room " + aROOM);
    // 结果返回
}

function send(){
    var context = document.getElementById('textin').value;
    var data = {'tag': 'public', 'msg': context, 'opt': false};
    ws.send(JSON.stringify(data));
}

function Broadcast(){
    var context = document.getElementById('textin').value;
    var data = {'tag': 'roomcast', 'msg': context, 'opt': true, 'arg': {'roomid': aROOM}};
    ws.send(JSON.stringify(data));
}
        
function InitWS(){
    if("WebSocket" in window){
        console.log("您的浏览器支持Websocket");
        ws = new WebSocket("ws://localhost:3000");
        ws.onopen = function(){
            console.log("connected!");
        }

        ws.onmessage = function(evt){
            var rece = evt.data;
            console.log("received: "+ rece);
        }

        ws.onclose = function(){
            console.log("disconnected!");
        }
    }else{
        alert("您的浏览器不支持Websocket");
    }
}