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/*
* Copyright (c) 2018 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
window.onload = function(){
var container = document.querySelector("#camera-view");
runWebSocket();
function runWebSocket() {
var wsUri = "ws://" + window.location.hostname + ":8888/";
websocket = new WebSocket(wsUri);
websocket.onopen = function(evt) { onOpen(evt) };
websocket.onclose = function(evt) { onClose(evt) };
websocket.onmessage = function(evt) { onMessage(evt) };
websocket.onerror = function(evt) { onError(evt) };
}
function onOpen(evt)
{
console.log("CONNECTED");
doSend("HELLO FROM BROWSER via WebSocket!!!!!!!!!!!!");
}
function onClose(evt)
{
console.log("DISCONNECTED");
}
function onMessage(evt)
{
var urlCreator = window.URL || window.webkitURL;
var imageUrl = urlCreator.createObjectURL(evt.data);
document.querySelector("#camera-view").src = imageUrl;
doSend("ack", true);
}
function onError(evt)
{
console.log(evt.data);
}
function doSend(message, dont_print_log)
{
websocket.send(message);
if (!dont_print_log)
console.log("SENT: " + message);
}
var buttonOnElement = document.getElementById('button-on');
buttonOnElement.addEventListener('click', function () {
httpGetAsync("/command/on", function (res){
console.log(res);
})
});
var buttonOffElement = document.getElementById('button-off');
buttonOffElement.addEventListener('click', function () {
httpGetAsync("/command/off", function (res){
console.log(res);
})
});
var buttonMsgElement = document.getElementById('button-msg');
buttonMsgElement.addEventListener('click', function () {
httpGetAsync("/command/send", function (res){
console.log(res);
})
});
};
function httpGetAsync(theUrl, callback)
{
var xmlHttp = new XMLHttpRequest();
xmlHttp.onreadystatechange = function() {
if (xmlHttp.readyState == 4 && xmlHttp.status == 200)
callback(xmlHttp.responseText);
}
xmlHttp.open("GET", theUrl, true); // true for asynchronous
xmlHttp.send(null);
}
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