239 lines
9.6 KiB
Plaintext
239 lines
9.6 KiB
Plaintext
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<link rel='stylesheet' href='/css/stylesheet.css' />
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<title>5G drone API</title>
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</head>
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<body>
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<h1 class="header">5G Drone API</h1>
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<div class="video">
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<div class="mainvideo">
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<p>Camera view:</p>
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<img id="result-video" style="border: 1px solid blue; width: 960px;"></img>
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<div id="connectedbuttons">
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<div id="connectedstatus">
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<p id="connectedlabel">Connected: <%- api_connected %></p>
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<button id="connectbutton" onclick="connect()">Connect</button>
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</div>
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<div id="buttons">
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<button id="take_picture" onclick="take_picture()">Take picture</button>
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<br>
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<button id="arm_disarm" onclick="arm_disarm()">Arm/Disarm</button>
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</div>
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</div>
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<div id="controls">
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<h2>Controls</h2>
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<div id="buttons">
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<button class="movebutton" id="button_turnleft">Turn left</button>
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<button class="movebutton" id="button_turnright">Turn right</button>
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<button class="movebutton" id="button_up">Up</button>
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<button class="movebutton" id="button_down">Down</button>
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<button class="movebutton" id="button_forward">Forward</button>
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<button class="movebutton" id="button_backward">Backward</button>
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<button class="movebutton" id="button_left">Left</button>
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<button class="movebutton" id="button_right">Right</button>
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<button id="button_stop" onclick="stop()">Stop</button>
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<button id="button_estop" onclick="estop()"><strong>Emergency Stop</strong></button>
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</div>
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</div>
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</div>
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<div class="lastpicture">
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<p>Last picture:</p>
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<img id="picture">
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<h2>Drone status</h2>
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<p id="batterypercentage">Battery percentage</p>
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<p id="cpuload">CPU load</p>
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<p id="armed"></p>
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<p id="control_mode"></p>
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<p id="speed">Current speed</p>
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<p id="position">Current position</p>
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<p id="failsafe">Failsafe status</p>
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</div>
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</div>
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</body>
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<script>
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assign_button_callbacks();
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// Helper function to decode base64 image and set it as source of <img> element
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function decodeBase64Image(base64Data, imgElement) {
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const img = new Image();
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img.onload = function () {
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// Once the image has loaded, set it as the source of the <img> element
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imgElement.src = this.src;
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// console.log("set image data src")
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};
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// Set the base64-encoded image data as the source of the image
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img.src = 'data:image/jpeg;base64,' + base64Data;
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}
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window.onload = function () {
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const events = new EventSource("/events");
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events.onopen = () => {
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console.log("OPENED EVENT");
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}
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events.onmessage = (event) => {
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// console.log("MESSAGE RECEIVED");
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const eventData = JSON.parse(event.data);
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// Check if the event contains image data
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if (eventData.image) {
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const base64Data = eventData.image;
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// Get the <img> element
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const imgElement = document.getElementById('result-video');
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// Decode the base64 image and set it as the source of the <img> element
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decodeBase64Image(base64Data, imgElement);
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}
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}
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};
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function assign_button_callbacks() {
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var buttons = document.getElementsByClassName("movebutton");
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for (var i = 0; i < buttons.length; i++) {
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buttons[i].addEventListener("mouseup", function () {
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stop();
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});
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}
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document.getElementById("button_forward").addEventListener("mousedown", function () { forward(); });
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document.getElementById("button_backward").addEventListener("mousedown", function () { backward(); });
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document.getElementById("button_left").addEventListener("mousedown", function () { left(); });
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document.getElementById("button_right").addEventListener("mousedown", function () { right(); });
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document.getElementById("button_turnleft").addEventListener("mousedown", function () { turn_left(); });
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document.getElementById("button_turnright").addEventListener("mousedown", function () { turn_right(); });
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document.getElementById("button_up").addEventListener("mousedown", function () { up(); });
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document.getElementById("button_down").addEventListener("mousedown", function () { down(); });
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}
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function update_status() {
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// {"battery_percentage": 100.0, "cpu_usage": 0.0, "armed": false, "control_mode": "attitude", "route_setpoint": 0}}
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// console.log("updating status")
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var xhr = new XMLHttpRequest();
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xhr.open("GET", "/status", true);
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xhr.onreadystatechange = function () {
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if (this.status == 200) {
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// console.log(this.responseText);
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if (this.responseText.length > 0) {
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var status = JSON.parse(this.responseText);
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// console.log(status)
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document.getElementById("batterypercentage").innerHTML = "Battery percentage: " + status.battery_percentage;
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document.getElementById("cpuload").innerHTML = "CPU load: " + status.cpu_usage;
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document.getElementById("armed").innerHTML = "Armed: " + status.armed;
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document.getElementById("control_mode").innerHTML = "Control mode: " + status.control_mode;
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}
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}
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};
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xhr.send();
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}
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function send_move_request(data) {
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console.log("sending move request " + data);
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var xhr = new XMLHttpRequest();
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xhr.open("POST", "/move", true);
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xhr.setRequestHeader("Content-Type", "application/json");
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xhr.send(data);
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}
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function turn_left() {
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console.log("turnleft");
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send_move_request(JSON.stringify({ "up_down": 0.0, "forward_backward": 0.0, "left_right": 0.0, "turn_left_right": -10.0 }));
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}
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function turn_right() {
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console.log("turnright");
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send_move_request(JSON.stringify({ "up_down": 0.0, "forward_backward": 0.0, "left_right": 0.0, "turn_left_right": 10.0 }));
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}
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function up() {
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console.log("up");
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send_move_request(JSON.stringify({ "up_down": 1.0, "forward_backward": 0.0, "left_right": 0.0, "turn_left_right": 0.0 }));
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}
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function down() {
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console.log("down");
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send_move_request(JSON.stringify({ "up_down": -1.0, "forward_backward": 0.0, "left_right": 0.0, "turn_left_right": 0.0 }));
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}
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function forward() {
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console.log("forward"); send_move_request(JSON.stringify({ "up_down": 0.0, "forward_backward": 1.0, "left_right": 0.0, "turn_left_right": 0.0 }));
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}
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function backward() {
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console.log("backward");
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send_move_request(JSON.stringify({ "up_down": 0.0, "forward_backward": -1.0, "left_right": 0.0, "turn_left_right": 0.0 }));
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}
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function left() {
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console.log("left");
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send_move_request(JSON.stringify({ "up_down": 0.0, "forward_backward": 0.0, "left_right": -1.0, "turn_left_right": 0.0 }));
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}
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function right() {
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console.log("right");
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send_move_request(JSON.stringify({ "up_down": 0.0, "forward_backward": 0.0, "left_right": 1.0, "turn_left_right": 0.0 }));
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}
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function stop() {
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console.log("stop");
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send_move_request(JSON.stringify({ "up_down": 0.0, "forward_backward": 0.0, "left_right": 0.0, "turn_left_right": 0.0 }));
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}
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function estop() {
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console.log("estop");
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}
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function take_picture() {
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console.log("take picture");
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var xhr = new XMLHttpRequest();
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xhr.open("GET", "/image", true);
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xhr.overrideMimeType("text/plain; charset=utf-8");
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xhr.onload = (e) => {
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console.log("response image received");
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const img = e.response;
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document.getElementById("picture").src = img;
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}
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console.log("sending picture request")
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xhr.send();
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}
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function arm_disarm() {
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console.log("arm/disarm");
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}
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function connect() {
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var received = false;
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var xhr = new XMLHttpRequest();
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xhr.open("GET", "/connect", true);
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xhr.onreadystatechange = function () {
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if (this.status == 200) {
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console.log(this.responseText);
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if (this.responseText.length > 0) {
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var status = JSON.parse(this.responseText);
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// console.log(status)
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document.getElementById("connectedlabel").innerHTML = "Connected: true";
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document.getElementById("connectbutton").disabled = true;
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}
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} else {
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console.log("error");
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document.getElementById("connectedlabel").innerHTML = "Connected: false";
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if (!received) {
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alert("Could not connect to API!");
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received = true;
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}
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}
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};
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xhr.send();
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}
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// window onload function die elke seconde een request doet om te kijken of er al nieuwe foto is
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// function die elke 100 ms een request doet om de status te updaten
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// button callbacks
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</script>
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</html> |