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frameWeb.h
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frameWeb.h
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// Web server Functions
//
#include <WiFi.h>
#include <WiFiClient.h>
#include <WebServer.h>
#include <ESPmDNS.h>
#include <Update.h>
#include "secrets.h"
#ifndef SCREEN_FRAME
#include "screenFrame.h"
#endif
WebServer server(80);
// Web server host name
const char *hostName = "frame";
// CSS for the web application
const char *css = "<style>\
.loading {\
background-color: #f3f3f3;\
cursor: not-allowed;\
}\
.spinner {\
display: inline-block;\
width: 40px;\
height: 40px;\
border: 5px solid rgba(0,0,0,.2);\
border-top-color: #008000;\
border-radius: 100%;\
animation: spin 1s linear infinite;\
}\
@keyframes spin {\
to { transform: rotate(360deg); }\
}\
.column {\
width: 50%;\
padding: 10px;\
box-sizing: border-box;\
}\
.separator {\
width: 2px;\
background: #ddd;\
height: 100%;\
position: absolute;\
left: 50%;\
top: 0;\
}\
.left { float: left; }\
.right { float: right; }\
h1 { text-align: center; }\
.label {\
font-weight: bold;\
font-size: 25px;\
}\
input[type=\"text\"] {\
background-color: #f3f3f3;\
border: 1px solid #ccc;\
padding: 10px;\
width: 50%;\
box-sizing: border-box;\
font-size: 25px;\
}\
input[type=\"submit\"] {\
background-color: #008800;\
color: white;\
border: none;\
padding: 10px;\
text-transform: uppercase;\
cursor: pointer;\
font-size: 25px;\
margin-top: 10px;\
width: 50%;\
}\
input[type=\"submit\"]:hover {\
background-color: #006600;\
}\
button {\
font-size: 40px;\
padding: 15px;\
width: 90%;\
box-sizing: border-box;\
margin: 20px 5%;\
border-radius: 25px;\
transition: background-color 0.3s, transform 0.3s;\
}\
button:hover {\
background-color: #ddd;\
}\
button:active {\
transform: scale(0.95);\
}\
</style>";
const char *htmlPageUpdate =
"<script src='https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js'></script>"
"<style>"
"body {"
" font-size: 40px;" /* Change the size as needed */
"}"
"input[type=submit], input[type=file], #homeButton {"
" font-size: 40px;" /* Change the size as needed */
" padding: 10px 20px;" /* Change the padding as needed */
"}"
"progress {"
" width: 100%;"
" height: 100px;" /* Increase the height as needed */
"}"
"#successMessage {"
" display: none;" /* Initially hidden */
" color: green;"
"}"
"</style>"
"<form method='POST' action='#' enctype='multipart/form-data' id='upload_form'>"
"<input type='file' name='update'>"
"<input type='submit' value='Update'>"
"</form>"
"<progress id='prg' value='0' max='100'></progress>"
"<div id='successMessage'>"
"Upload completed successfully!"
"<br>"
"<button id='homeButton' onclick='window.location=\"/\"'>Return to Home</button>"
"</div>"
"<script>"
"$('form').submit(function(e){"
" e.preventDefault();"
" var form = $('#upload_form')[0];"
" var data = new FormData(form);"
" $.ajax({"
" url: '/upload',"
" type: 'POST',"
" data: data,"
" contentType: false,"
" processData:false,"
" xhr: function() {"
" var xhr = new window.XMLHttpRequest();"
" xhr.upload.addEventListener('progress', function(evt) {"
" if (evt.lengthComputable) {"
" var per = evt.loaded / evt.total;"
" $('#prg').val(Math.round(per*100));"
" }"
" }, false);"
" return xhr;"
" },"
" success:function(d, s) {"
" $('#successMessage').show();" // Show the success message and button
" },"
" error: function (a, b, c) {"
" }"
" });"
"});"
"</script>";
// Structure to store commands available on the web application
struct Command
{
const char *name;
const char *endpoint;
void (*handler)();
};
// List of Commands available on the web application
void handleHello(void);
void handleUpdate(void);
void handleLedFinder(void);
void handleDemo(void);
void handleSuspendAnimations(void);
void handleFrameColor(void);
void handleAnimateSection(void);
// Fetch commands name, route and handling function to be called
Command fetchCommands[] = {
{"Home", "/", handleHello},
{"Demo", "/demo", handleDemo},
{"Animate Section", "/animateSection", handleAnimateSection},
{"Suspend Animations", "/suspendAnimations", handleSuspendAnimations},
// {"Fast Random", "/show_fastrandom", handleShowFastRandom},
// {"Darth Vader Breathing", "/darth_vader", handleDarthVaderBreathing},
// {"Demo Add 1 Subscriber", "/demo_plus_one_subscriber", handleDemoPlusOneSubscriber},
// {"Demo Remove 1 Subscriber", "/demo_minus_one_subscriber", handleDemoMinusOneSubscriber},
// {"Demo Add 2 Subscriber", "/demo_plus_two_subscriber", handleDemoPlusTwoSubscriber},
};
// Post commands name, route and handling function to be called
const char *routeLedFinderForm = "/led_finder";
const char *routeFrameColor = "/frame_color";
Command postCommands[] = {
{"Upload code", "/update", handleUpdate},
{"LED Finder", routeLedFinderForm, handleLedFinder},
{"Frame Color", routeFrameColor, handleFrameColor},
};
// Functions to handle post data by the forms on the web application
const char *uploadEndpoint = "/upload";
const char *ledSetEndPoint = "/led_set";
const char *frameColorEndPoint = "/set_frame_color";
// Build a list of commands available to display on the web application
String commandsList(void)
{
String commandList = css;
commandList += "<div class='separator'></div>\
<div class='column left'>\
<h1>Commands</h1>";
for (Command &cmd : fetchCommands)
{
if (cmd.endpoint == "/update")
{
commandList += "<button style='font-size: 40px; padding: 15px; width: 90%; box-sizing: border-box; margin: 20px 5%; border-radius: 25px;' onclick=\"location.href='";
commandList += cmd.endpoint;
commandList += "'\">";
}
else
{
if (cmd.endpoint == "/suspendAnimations")
{
if (suspendAnimations)
{
cmd.name = "Enable Animations";
}
else
{
cmd.name = "Suspend Animations";
}
}
commandList += "<button id='";
commandList += cmd.endpoint;
commandList += "' style='font-size: 40px; padding: 15px; width: 90%; box-sizing: border-box; margin: 20px 5%; border-radius: 25px;' onclick='this.classList.add(\"loading\"); this.innerHTML=\"<div class=spinner></div>\"; fetch(\"";
commandList += cmd.endpoint;
commandList += "\").then(response => response.text()).then(data => { document.body.innerHTML = data; this.classList.remove(\"loading\"); })'>";
}
commandList += cmd.name;
commandList += "</button><br/>";
}
commandList += "</div>\
<div class='column right'>\
<h1>Settings Configuration</h1>";
for (Command &cmd : postCommands)
{
commandList += "<button style='font-size: 40px; padding: 15px; width: 90%; box-sizing: border-box; margin: 20px 5%; border-radius: 25px;' onclick=\"location.href='";
commandList += cmd.endpoint;
commandList += "'\">";
commandList += cmd.name;
commandList += "</button><br/>";
}
commandList += "</div>";
return commandList;
}
void sendPlainText(const char *fmt, ...)
{
char buf[256]; // Buffer to hold the formatted string. Adjust the size as needed.
va_list args;
va_start(args, fmt);
vsnprintf(buf, sizeof(buf), fmt, args);
va_end(args);
server.send(200, "text/plain", buf);
}
void handleHello(void)
{
String body = "<div style='border: 2px solid #008800; background-color: #e6f7e6; padding: 10px; border-radius: 10px; margin: 10px; font-size: 24px;'>\
URL: " +
String(hostName) + ".local<br/>" +
"IP address: " + WiFi.localIP().toString() + "<br/>" +
"Connected to: " + String(ssid) +
"</div>" + commandsList();
server.send(200, "text/html", body);
}
void handleSuspendAnimations(void)
{
suspendAnimations = !suspendAnimations;
handleHello();
}
void handleAnimateSection(void)
{
showSectionFromCenter(pixelBottomRight, getRandomColor(), true, getRandomMillis(100, 200), getRandomMillis(60000L, 120000L));
server.send(200);
}
void handleDemo(void)
{
frameDemo();
server.send(200);
}
void handleUpdate(void)
{
server.sendHeader("Connection", "close");
server.send(200, "text/html", htmlPageUpdate);
}
void handleNotFound()
{
String message = "Command Not Found\n\n";
message += "URI: ";
message += server.uri();
message += "\nMethod: ";
message += (server.method() == HTTP_GET) ? "GET" : "POST";
message += "\nArguments: ";
message += server.args();
message += "\n";
for (uint8_t i = 0; i < server.args(); i++)
{
message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
}
server.send(404, "text/plain", message);
}
void handleLedFinder(void)
{
server.sendHeader("Connection", "close");
String html = css;
html += "<form action='";
html += ledSetEndPoint;
html += "' method=\"post\">\
<label class='label'>Set LED Number:</label><br>\
<input type=\"text\" name=\"led_number\" size=\"50\">\
<br>\
<input type=\"submit\" value=\"Submit\">\
</form>";
html += "<a href='/' class='home-button'>Home</a>"; // Home button placed after the submit button
server.send(200, "text/html", html);
}
void handleFrameColor(void)
{
server.sendHeader("Connection", "close");
String html = css;
html += "<form action='";
html += frameColorEndPoint;
html += "' method=\"post\">\
<label class=\"label\">Set Red (0-255):</label><br>\
<input type=\"number\" name=\"red\" min=\"0\" max=\"255\" value=\"0\"><br>\
<label class=' label '>Set Green (0-255):</label><br>\
<input type=\"number\" name=\"green\" min=\"0\" max=\"255\" value=\"0\"><br>\
<label class=' label '>Set Blue (0-255):</label><br>\
<input type=\"number\" name=\"blue\" min=\"0\" max=\"255\" value=\"0\"><br>\
<input type=\"submit\" value=\"Submit\">\
</form>";
html += "<a href='/' class='home-button'>Home</a>"; // Home button placed after the submit button
server.send(200, "text/html", html);
}
void handleFrameColorSet()
{
if (server.hasArg("red"))
{
pixels.clear();
pixels.show();
String red = server.arg("red");
String green = server.arg("green");
String blue = server.arg("blue");
uint32_t frame_color = pixels.Color(red.toInt(), green.toInt(), blue.toInt());
drawFrameAround(frame_color, 0);
// Redirect back to the form page
server.sendHeader("Location", routeFrameColor);
server.send(303);
}
else
{
server.send(400, "text/plain", "Missing data in request.");
}
}
void handleLedSet()
{
if (server.hasArg("led_number"))
{
pixels.clear();
pixels.show();
String channelId = server.arg("led_number");
int startPos = 0;
int endPos = channelId.indexOf(',');
while (endPos != -1)
{
String numberStr = channelId.substring(startPos, endPos);
int number = numberStr.toInt();
pixels.setPixelColor(number, COLOR_WHITE);
startPos = endPos + 1;
endPos = channelId.indexOf(',', startPos);
}
// Handle the last number (or the only number if there's just one)
int number = channelId.substring(startPos).toInt();
pixels.setPixelColor(number, COLOR_WHITE);
pixels.show();
// Redirect back to the form page
// server.sendHeader("Location", routeLedFinderForm); // Replace "/path_to_form_page" with the actual path to your form page
server.send(200);
}
else
{
server.send(400, "text/plain", "Missing data in request.");
}
}
// Setup of routes for handling requests coming from the web application
void setupCommands(void)
{
// Register the command handlers with the web server
for (Command &cmd : fetchCommands)
{
server.on(cmd.endpoint, HTTP_GET, cmd.handler);
}
for (Command &cmd : postCommands)
{
server.on(cmd.endpoint, HTTP_GET, cmd.handler);
}
server.onNotFound(handleNotFound);
/*handling uploading firmware file */
server.on(
uploadEndpoint, HTTP_POST, []()
{
server.sendHeader("Connection", "close");
server.send(200, "text/plain", (Update.hasError()) ? "FAIL" : "OK");
ESP.restart(); },
[]()
{
HTTPUpload &upload = server.upload();
if (upload.status == UPLOAD_FILE_START)
{
Serial.printf("Update: %s\n", upload.filename.c_str());
if (!Update.begin(UPDATE_SIZE_UNKNOWN))
{ // start with max available size
Update.printError(Serial);
}
}
else if (upload.status == UPLOAD_FILE_WRITE)
{
/* flashing firmware to ESP*/
if (Update.write(upload.buf, upload.currentSize) != upload.currentSize)
{
Update.printError(Serial);
}
}
else if (upload.status == UPLOAD_FILE_END)
{
if (Update.end(true))
{ // true to set the size to the current progress
Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
}
else
{
Update.printError(Serial);
}
}
});
// Handling LED Set
server.on(ledSetEndPoint, HTTP_POST, handleLedSet);
server.on(frameColorEndPoint, HTTP_POST, handleFrameColorSet);
}
void initWebServer()
{
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
Serial.println("");
// Wait for connection
while (WiFi.status() != WL_CONNECTED)
{
pixels.fill(COLOR_RED);
pixels.show();
delay(100);
pixels.clear();
pixels.show();
delay(100);
Serial.print(".");
}
Serial.println("");
Serial.print("Connected to ");
Serial.println(ssid);
Serial.print("IP address: ");
Serial.println(WiFi.localIP());
if (MDNS.begin(hostName))
{
Serial.println("MDNS responder started");
}
setupCommands();
server.begin();
Serial.println("HTTP server started");
}