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setup.php
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<?php
header('Access-Control-Allow-Origin: *');
error_reporting (E_ALL);
ini_set ('display_errors','On');
session_start();
require "backend/Config.php";
$config = new Config;
$config->load("local.config", "defaults.php");
if(isset($_POST["complete"])){
if($config->get("general.initialsetup")=="0"){
if(isset($_POST["pw"])){
$val=$_POST["pw"];
}else{
echo "Setup error - no password specified. Please create an issue <a href='https://github.com/femto-code/Raspberry-Pi-Dashboard/issues/new' target='blank'>here</a>.";
exit();
}
$edit=array('general' => array ());
$edit["general"]["pass"]=md5($val);
$edit["general"]["initialsetup"]="1";
//print_r($edit);
}else{
$edit=$config->userconf;
}
$existing=$config->userconf;
$combined=array_replace_recursive($existing, $edit);
echo $config->save($combined);
$_SESSION["setup"]="justfinished";
exit();
}
shell_exec("sudo /sbin/shutdown -r +99999");
function getShutdownEventsInfo(){
// system("date --date @$(head -1 /run/systemd/shutdown/scheduled |cut -c6-15)");
// old command which is not very comfortable in order to retrieve which event is scheduled (poweroff vs reboot)
// For now use old one for compatibility reasons which I dont know so far
$return=array();
$output2=shell_exec("busctl get-property org.freedesktop.login1 /org/freedesktop/login1 org.freedesktop.login1.Manager ScheduledShutdown");
if($output2==""){
$output=shell_exec("date --date @$(head -1 /run/systemd/shutdown/scheduled |cut -c6-15)");
$return["date"]=$output;
$return["act"]="unknown";
}else{
$strings=explode(" ", $output2);
// The output specifies the shutdown time as microseconds since the Unix epoch -> divide by 1000
//echo gettype($strings[2]);
$return["date"]=round(floatval($strings[2]) / 1000); // Unix milliseconds
$return["act"]=explode("\"", $strings[1])[1];
}
return $return;
}
$return=getShutdownEventsInfo();
// print_r($return);
if($return["date"]=="0"){
$permi2='<span class="text-danger"><i class="bi bi-x-circle"></i> Failed!</span>';
$pclass2="danger";
}else{
system('sudo /sbin/shutdown -c');
$permi2='<span class="text-success"><i class="bi bi-check-circle"></i> Passed!</span>';
$pclass2="success";
}
$permtest=shell_exec("vcgencmd measure_volts core");
if(strlen($permtest)<2){
$permi1='<span class="text-danger"><i class="bi bi-x-circle"></i> Failed!</span>';
$pclass1="danger";
}else{
$permi1='<span class="text-success"><i class="bi bi-check-circle"></i> Passed!</span>';
$pclass1="success";
}
function isFileWritable($path){
$writable_file = (file_exists($path) && is_writable($path));
$writable_directory = (!file_exists($path) && is_writable(dirname($path)));
if ($writable_file || $writable_directory) {
return true;
}
return false;
}
$perm0test=isFileWritable(__DIR__."/local.config");
if($perm0test){
$permi0='<span class="text-success"><i class="bi bi-check-circle"></i> Passed!</span>';
$pclass0="success";
$p0help="It seems, that permissions are set correctly!";
}else{
$permi0='<span class="text-danger"><i class="bi bi-x-circle"></i> Failed!</span>';
$pclass0="danger";
$p0help="Click for help on setting correct permissions!";
}
?>
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<title>RPi Dashboard Setup</title>
<link rel="stylesheet" href="css/bootstrap-4.6.0.min.css">
<link rel="stylesheet" href="css/bootstrap-icons.css?v=1.4.0">
<link rel="stylesheet" href="css/darkmode.css" id="dmcss" type="text/css" disabled>
<style>
.multisteps-form__progress {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
}
.multisteps-form__progress-btn {
transition-property: all;
transition-duration: 0.15s;
transition-timing-function: linear;
transition-delay: 0s;
position: relative;
padding-top: 20px;
color: rgba(108, 117, 125, 0.7);
text-indent: -9999px;
border: none;
background-color: transparent;
outline: none !important;
cursor: pointer;
}
@media (min-width: 500px) {
.multisteps-form__progress-btn {
text-indent: 0;
}
}
.multisteps-form__progress-btn:before {
position: absolute;
top: 0;
left: 50%;
display: block;
width: 13px;
height: 13px;
content: '';
-webkit-transform: translateX(-50%);
transform: translateX(-50%);
transition: all 0.15s linear 0s, -webkit-transform 0.15s cubic-bezier(0.05, 1.09, 0.16, 1.4) 0s;
transition: all 0.15s linear 0s, transform 0.15s cubic-bezier(0.05, 1.09, 0.16, 1.4) 0s;
transition: all 0.15s linear 0s, transform 0.15s cubic-bezier(0.05, 1.09, 0.16, 1.4) 0s, -webkit-transform 0.15s cubic-bezier(0.05, 1.09, 0.16, 1.4) 0s;
border: 2px solid currentColor;
border-radius: 50%;
background-color: #fff;
box-sizing: border-box;
z-index: 3;
}
.multisteps-form__progress-btn:after {
position: absolute;
top: 5px;
left: calc(-50% - 13px / 2);
transition-property: all;
transition-duration: 0.15s;
transition-timing-function: linear;
transition-delay: 0s;
display: block;
width: 100%;
height: 2px;
content: '';
background-color: currentColor;
z-index: 1;
}
.multisteps-form__progress-btn:first-child:after {
display: none;
}
.multisteps-form__progress-btn.js-active {
color: #007bff;
}
.multisteps-form__progress-btn.js-active:before {
-webkit-transform: translateX(-50%) scale(1.2);
transform: translateX(-50%) scale(1.2);
background-color: currentColor;
}
.multisteps-form__form {
position: relative;
}
.multisteps-form__panel {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 0;
opacity: 0;
visibility: hidden;
}
.multisteps-form__panel.js-active {
height: auto;
opacity: 1;
visibility: visible;
}
/* Define your own CSS3 animations in the CSS. */
.multisteps-form__panel[data-animation="scaleIn"] {
-webkit-transform: scale(0.9);
transform: scale(0.9);
}
.multisteps-form__panel[data-animation="scaleIn"].js-active {
transition-property: all;
transition-duration: 0.2s;
transition-timing-function: linear;
transition-delay: 0s;
-webkit-transform: scale(1);
transform: scale(1);
}
.multisteps-form__panel[data-animation=scaleOut]{
-webkit-transform:scale(1.1);
transform:scale(1.1);
}
.multisteps-form__panel[data-animation=scaleOut].js-active{
transition-property:all;
transition-duration:.2s;
transition-timing-function:linear;
transition-delay:0s;
-webkit-transform:scale(1);
transform:scale(1);
}
.multisteps-form__panel[data-animation=slideHorz]{
left:50px;
}
.multisteps-form__panel[data-animation=slideHorz].js-active{
transition-property:all;
transition-duration:.25s;
transition-timing-function:cubic-bezier(.2,1.13,.38,1.43);
transition-delay:0s;left:0;
}
.multisteps-form__panel[data-animation=slideVert]{
top:30px;
}
.multisteps-form__panel[data-animation=slideVert].js-active{
transition-property:all;
transition-duration:.2s;
transition-timing-function:linear;
transition-delay:0s;top:0;
}
.multisteps-form__panel[data-animation=fadeIn].js-active{
transition-property:all;
transition-duration:.3s;
transition-timing-function:linear;
transition-delay:0s;
}
/* rubik-300 - latin */
@font-face {
font-family: 'Rubik';
font-style: normal;
font-weight: 300;
src: url('fonts/rubik-v12-latin-300.eot'); /* IE9 Compat Modes */
src: local(''),
url('fonts/rubik-v12-latin-300.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */
url('fonts/rubik-v12-latin-300.woff2') format('woff2'), /* Super Modern Browsers */
url('fonts/rubik-v12-latin-300.woff') format('woff'), /* Modern Browsers */
url('fonts/rubik-v12-latin-300.ttf') format('truetype'), /* Safari, Android, iOS */
url('fonts/rubik-v12-latin-300.svg#Rubik') format('svg'); /* Legacy iOS */
}
body, .mdtoast{
font-family: 'Rubik', sans-serif;
}
.hidden{
display: none;
}
</style>
</head>
<body style="background-color: #f5f5f5;">
<div class="container">
<div style="margin:auto;margin-top: 30px" class="text-center">
<img class="mb-4" src="img/official_logo.svg" alt="" width="72" height="72">
<h1 class="headline h3 mb-2 font-weight-normal">Welcome!</h1>
<h3 class="headline h5 mb-3 font-weight-light">Raspberry Pi Dashboard</h3>
<h5 class="headline text-secondary font-weight-normal">Setup</h5>
</div>
<form class="pick-animation my-4" style="display:none">
<div class="form-row">
<div class="col-5 m-auto">
<select class="pick-animation__select form-control">
<option value="scaleIn" selected="selected">ScaleIn</option>
<option value="scaleOut">ScaleOut</option>
<option value="slideHorz">SlideHorz</option>
<option value="slideVert">SlideVert</option>
<option value="fadeIn">FadeIn</option>
</select>
</div>
</div>
</form>
<div class="multisteps-form">
<!--progress bar-->
<div class="row">
<div class="col-12 col-lg-8 ml-auto mr-auto mb-4">
<div class="multisteps-form__progress">
<button class="multisteps-form__progress-btn js-active" type="button" title="Order Info">Appearance</button>
<button class="multisteps-form__progress-btn" type="button" title="User Info" id="authbtn">Authorization</button>
<button class="multisteps-form__progress-btn" type="button" title="Comments">Permissions</button>
</div>
</div>
</div>
<!--form panels-->
<div class="row">
<div class="col-12 col-lg-8 m-auto">
<form class="multisteps-form__form" name="myForm">
<!--single form panel-->
<div class="multisteps-form__panel shadow p-4 rounded bg-white js-active" data-animation="scaleOut">
<h3 class="multisteps-form__title">Appearance</h3>
<div class="multisteps-form__content pt-2">
<div class="custom-control custom-radio ml-3">
<input type="radio" id="false" name="myRadios" class="custom-control-input" checked>
<label class="custom-control-label" for="false">Light Theme</label>
</div>
<div class="custom-control custom-radio ml-3">
<input type="radio" id="true" name="myRadios" class="custom-control-input">
<label class="custom-control-label" for="true">Dark Theme</label>
</div>
<div class="custom-control custom-radio ml-3">
<input type="radio" id="auto" name="myRadios" class="custom-control-input">
<label class="custom-control-label" for="auto">Adjust to (local) system settings</label>
</div>
<div class="alert alert-info mt-3" role="alert"><i class="bi bi-info-circle"></i> Theme settings can also be changed later using dashboard options modal.</div>
<div class="row">
<div class="button-row d-flex mt-4 col-12">
<button class="btn btn-primary ml-auto js-btn-next" type="button" title="Next">Next <i class="bi bi-chevron-double-right"></i></button>
</div>
</div>
</div>
</div>
<!--single form panel-->
<div class="multisteps-form__panel shadow p-4 rounded bg-white" data-animation="scaleOut">
<h3 class="multisteps-form__title">Authorization</h3>
<div class="multisteps-form__content">
<?php
if($config->get("general.initialsetup")=="0"){
?>
<div class="form-row mt-4">
<div class="col-12 col-sm-6">
<label for="pwinput1">Password</label>
<input class="multisteps-form__input form-control" type="password" id="pwinput1" />
</div>
<div class="col-12 col-sm-6 mt-4 mt-sm-0">
<label for="pwinput2">Password (repeat)</label>
<input class="multisteps-form__input form-control" type="password" id="pwinput2" onkeyup="checkPw()" />
<div class="invalid-feedback">Passwords are not equal!</div>
</div>
</div>
<?php
}else{
?>
<div class="alert alert-danger mt-3" role="alert"><i class="bi bi-info-circle"></i> Custom password was already set (by you) using this setup. This form is now disabled for security reasons. Log-in to Dashboard first and open settings to change it.<hr>
<p class="mb-0"><strong>Don't have access to it / forgot password?</strong><br>Alternatively, change your password manually by editing your <kbd>local.config</kbd> file.<br><a href="https://github.com/femto-code/Raspberry-Pi-Dashboard#configure-password-manually" target="blank" class="alert-link"><i class="bi bi-question-circle"></i> Help / Instructions</a></p></div>
<?php
}
?>
<div class="alert alert-warning mt-3 alert-dismissible fade show" role="alert">
<h4 class="alert-heading">Please note</h4>
<button type="button" class="close" data-dismiss="alert" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
Please keep in mind, that this password authentication <b>does not prevent</b> attackers to access your dashboard for 100%.
<hr>
<p class="mb-0"><b>In case you use remote shutdown functionality and/or have your Pi accessible over Internet</b> <i>or</i> if you (more securely) want to block unwanted users you should consider <i>HTTP Authentication</i> or other mechanisms!</p>
</div>
<div class="button-row d-flex mt-4">
<button class="btn btn-primary js-btn-prev" type="button" title="Prev"><i class="bi bi-chevron-double-left"></i> Prev</button>
<button class="btn btn-primary ml-auto js-btn-next" type="button" title="Next">Next <i class="bi bi-chevron-double-right"></i></button>
</div>
</div>
</div>
<!--single form panel-->
<div class="multisteps-form__panel shadow p-4 rounded bg-white" data-animation="scaleOut">
<h3 class="multisteps-form__title">Permissions</h3>
<div class="multisteps-form__content">
<div class="form-row mt-4">
<p>The dashboard attempts to retrieve/control some system information as listed below. In order to inspect/use them (from your dashboard instance) you can figure out if necessary permissions are set correctly.<br>In case of any insufficient configuration click on the item to get help.</p>
<h4>Required</h4>
<div class="list-group mb-3" style="width: 100%">
<a href="https://github.com/femto-code/Rasberry-Pi-Dashboard#valid-permissions" class="list-group-item list-group-item-action list-group-item-<?=$pclass0;?>">
<div class="d-flex w-100 justify-content-between">
<h5 class="mb-1">Basic directory access</h5>
<small><?=$permi0;?></small>
</div>
<p class="mb-1">Storing user settings (password etc.) and configuration options (thresholds etc.)</p>
<small><?=$p0help;?></small>
</a>
</div>
<h4>Optional</h4>
<div class="alert alert-info" role="alert"><i class="bi bi-info-circle"></i> The following permission configurations are <b>optional</b> to be decided with respect to what you want the dashboard to tell/control and security aspects (e.g. in case RPi is accessible over Internet).<br>Click on the respective item to get information about what you cannot see/use when permission is missing.</div>
<div class="list-group" style="width: 100%">
<a href="#" data-toggle="modal" data-target="#exampleModal" data-whatever="hwinfo" class="list-group-item list-group-item-action list-group-item-<?=$pclass1;?>">
<div class="d-flex w-100 justify-content-between">
<h5 class="mb-1">Advanced hardware information</h5>
<small><?=$permi1;?></small>
</div>
<p class="mb-1">Get core voltage, firmware version etc.</p>
<small>Click for more</small>
</a>
<a href="#" data-toggle="modal" data-target="#exampleModal" data-whatever="power" class="list-group-item list-group-item-action list-group-item-<?=$pclass2;?>" role="button">
<div class="d-flex w-100 justify-content-between">
<h5 class="mb-1">Shutdown / Reboot RPi remotely</h5>
<small class="text-info"><?=$permi2;?></small>
</div>
<p class="mb-1">Control power state of RPi from your local network. Also affects inspecting (viewing) upcoming/planned power events!</p>
<small>Click for more</small>
</a>
</div>
</div>
<div class="button-row d-flex mt-4">
<button class="btn btn-primary js-btn-prev" type="button" title="Prev"><i class="bi bi-chevron-double-left"></i> Prev</button>
<button onclick="completeSetup()" id="submit" class="btn btn-success ml-auto" type="button" title="To Dashboard">To Dashboard <i class="bi bi-forward"></i></button>
</div>
</div>
</div>
</form>
</div>
</div>
</div>
<?php
if($config->get("general.initialsetup")=="0"){
?>
<div class="alert alert-warning mt-3" role="alert"><i class="bi bi-info-circle"></i> <b>Welcome!</b> You need to complete this setup first before entering dashboard for the first time!</div>
<?php
}
?>
</div>
<footer class="my-5 py-3 text-muted text-center text-small">
<p class="mb-1"><a href="https://github.com/femto-code/Raspberry-Pi-Dashboard">RPi Dashboard</a> by <a href="https://github.com/femto-code">@femto-code</a></p>
<ul class="list-inline">
<li class="list-inline-item"><a href="https://github.com/femto-code/Raspberry-Pi-Dashboard/issues">Issues</a></li>
<li class="list-inline-item"><a href="https://github.com/femto-code/Raspberry-Pi-Dashboard/blob/master/README.md">Readme</a></li>
<li class="list-inline-item"><a href="https://github.com/femto-code/Raspberry-Pi-Dashboard/blob/master/CHANGELOG.md">Changelog</a></li>
</ul>
</footer>
<div class="modal fade" id="exampleModal" tabindex="-1" aria-labelledby="exampleModalLabel" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel">New message</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
<p></p>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
<script src="js/jquery-3.5.1.min.js"></script>
<script src="js/popper-1.16.1.min.js"></script>
<script src="js/bootstrap-4.6.0.min.js"></script>
<script>
$('#exampleModal').on('show.bs.modal', function (event) {
var button = $(event.relatedTarget) // Button that triggered the modal
var content = button.data('whatever') // Extract info from data-* attributes
// If necessary, you could initiate an AJAX request here (and then do the updating in a callback).
// Update the modal's content. We'll use jQuery here, but you could use a data binding library or other methods instead.
var text, modal = $(this)
if(content=="power"){
modal.find('.modal-title').text('Shutdown / Reboot RPi remotely (optional)')
text='<div class="alert alert-warning mt-3" role="alert"><i class="bi bi-info-circle"></i> This is <b>optional</b> and <b>recommended only</b> if your RPi is not accessible over the Internet!</div>In order to use the remote power functionality you have to give the user www-data advanced rights for running one specific command:<br><ul><li>Run <code>sudo visudo</code> to open the editor for adjusting user rights</li><li>Be careful what you change here! Just add the following at the end of the file: <code>www-data ALL=NOPASSWD: /sbin/shutdown</code></li><li>Restart your Pi and now shutdown from another device (connected to same local network like your Pi) is possible</li></ul><h5>Without this change</h5><ul><li>you cannot view any information about upcoming shutdown (e.g. planned via console)</li><li>you cannot shutdown your RPi remotely using the Dashboard</li></ul>';
}else if(content=="hwinfo"){
modal.find('.modal-title').text('Advanced hardware information (optional)');
text='<ul><li>Run <code>sudo usermod -aG video www-data</code> in a terminal</li></ul><div class="alert alert-info mt-3" role="alert"><i class="bi bi-info-circle"></i> If you do not use Raspbian (or any other RasPi distro) like Ubuntu, you do have to install libraspberrypi-bin by running <code>sudo apt install libraspberrypi-bin</code>.</div><h4>Background</h4><p>The <code>vcgencmd</code> command (specifically dedicated to RPi firmware) is a system command that requires certain hardware rights. Therefore one has to grant this particular right (to read hardware info) to e.g. <code>www-data</code> (under which web server is running). This is achived by adding this user to a system group called video, which the standard user pi is part of by default.<br><br>In case of problems: please comment on <a href="https://github.com/femto-code/Raspberry-Pi-Dashboard/issues/12" target="blank">#12</a> (or <a href="https://github.com/femto-code/Raspberry-Pi-Dashboard/issues/new" target="blank">new issue</a>)</p>';
}
modal.find('.modal-body p').html(text)
});
// General XMLHttpRequest(s)
class ntwReq {
constructor(url, successfct, timeoutfct, type="GET", encode=false, data=null) {
if (!navigator.onLine) {
$('#overallstate').html('<font class="text-danger"><i class="bi bi-question-circle"></i> You are offline ...</font>');
}
this.xmlhttp = new XMLHttpRequest();
this.xmlhttp.onreadystatechange = function () {
if (this.readyState == 4 && this.status == 200) {
successfct(this);
}
};
this.xmlhttp.open(type, url, true);
if(encode){
this.xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
}
this.xmlhttp.timeout = 4 * 1000;
this.xmlhttp.ontimeout = timeoutfct;
if(type=="POST"){
console.log("POSTING...");
this.xmlhttp.send(data);
}else{
this.xmlhttp.send();
}
}
}
function completeSetup() {
<?php
if($config->get("general.initialsetup")=="0"){
?>
if(checkPw()==false){
alert("Please check password fields.");
$("#authbtn").click();
return;
}
var value=document.getElementById("pwinput1").value;
<?php
}else{
?>
var value="xyz"; // does not matter - server won't accept when setup done before
//location.replace("index.php");
<?php
}
?>
$("#submit").html("Processing...").prop("disabled", true);
var vReq = new ntwReq("setup.php", function (data) {
console.log(data.responseText);
if(data.responseText=="1"){
window.setTimeout(function(){
$('#submit').html("<i class='bi bi-check-circle'></i> Successful");
window.setTimeout(function(){
location.replace("index.php");
}, 1000);
}, 1000);
}else{
if(data.responseText=="perm_error"){
if (confirm(("Config file (local.config) exists but could not be modified. Required permissions are not set correctly.\nShow help?"))){
window.open('https://github.com/femto-code/Raspberry-Pi-Dashboard#valid-permissions');
}
}
}
}, null, "POST", true, "complete=true&pw="+value);
}
var rad = document.myForm.myRadios;
var prev = null;
for (var i = 0; i < rad.length; i++) {
rad[i].addEventListener('click', function() {
adjustTheme(this.id);
});
}
function adjustTheme(chose) {
localStorage.setItem("darkmode", chose);
darkmode(chose);
}
function darkmode(state) {
if (state == undefined) {
return !$("#dmcss").attr("disabled");
}
if (state == "true") {
$("#dmcss").prop("disabled", false);
} else if (state == "false") {
$("#dmcss").prop("disabled", true);
}else if(state=="auto"){
if (window.matchMedia('(prefers-color-scheme: dark)').matches) {
darkmode("true");
} else {
darkmode("false");
}
window.matchMedia('(prefers-color-scheme: dark)').addListener(e => {
if (e.matches) {
darkmode("true");
} else {
darkmode("false");
}
});
}
}
if(localStorage.getItem("darkmode") != null){
darkmode(localStorage.getItem("darkmode"));
document.getElementById(localStorage.getItem("darkmode")).checked="true";
}else{
document.getElementById("false").checked="true";
}
function checkPw() {
var pw1=document.getElementById("pwinput1").value;
var pw2=document.getElementById("pwinput2").value;
if(pw1==""){
return false;
}
if(pw1!=pw2){
document.getElementById("pwinput2").classList.add("is-invalid");
document.getElementById("pwinput2").classList.remove("is-valid");
return false;
}else{
document.getElementById("pwinput2").classList.add("is-valid");
document.getElementById("pwinput2").classList.remove("is-invalid");
return true;
}
}
//DOM elements
const DOMstrings = {
stepsBtnClass: 'multisteps-form__progress-btn',
stepsBtns: document.querySelectorAll(`.multisteps-form__progress-btn`),
stepsBar: document.querySelector('.multisteps-form__progress'),
stepsForm: document.querySelector('.multisteps-form__form'),
stepsFormTextareas: document.querySelectorAll('.multisteps-form__textarea'),
stepFormPanelClass: 'multisteps-form__panel',
stepFormPanels: document.querySelectorAll('.multisteps-form__panel'),
stepPrevBtnClass: 'js-btn-prev',
stepNextBtnClass: 'js-btn-next' };
//remove class from a set of items
const removeClasses = (elemSet, className) => {
elemSet.forEach(elem => {
elem.classList.remove(className);
});
};
//return exect parent node of the element
const findParent = (elem, parentClass) => {
let currentNode = elem;
while (!currentNode.classList.contains(parentClass)) {
currentNode = currentNode.parentNode;
}
return currentNode;
};
//get active button step number
const getActiveStep = elem => {
return Array.from(DOMstrings.stepsBtns).indexOf(elem);
};
//set all steps before clicked (and clicked too) to active
const setActiveStep = activeStepNum => {
//remove active state from all the state
removeClasses(DOMstrings.stepsBtns, 'js-active');
//set picked items to active
DOMstrings.stepsBtns.forEach((elem, index) => {
if (index <= activeStepNum) {
elem.classList.add('js-active');
}
});
};
//get active panel
const getActivePanel = () => {
let activePanel;
DOMstrings.stepFormPanels.forEach(elem => {
if (elem.classList.contains('js-active')) {
activePanel = elem;
}
});
return activePanel;
};
//open active panel (and close unactive panels)
const setActivePanel = activePanelNum => {
//remove active class from all the panels
removeClasses(DOMstrings.stepFormPanels, 'js-active');
//show active panel
DOMstrings.stepFormPanels.forEach((elem, index) => {
if (index === activePanelNum) {
elem.classList.add('js-active');
setFormHeight(elem);
}
});
};
//set form height equal to current panel height
const formHeight = activePanel => {
const activePanelHeight = activePanel.offsetHeight;
DOMstrings.stepsForm.style.height = `${activePanelHeight}px`;
};
const setFormHeight = () => {
const activePanel = getActivePanel();
formHeight(activePanel);
};
//STEPS BAR CLICK FUNCTION
DOMstrings.stepsBar.addEventListener('click', e => {
//check if click target is a step button
const eventTarget = e.target;
if (!eventTarget.classList.contains(`${DOMstrings.stepsBtnClass}`)) {
return;
}
//get active button step number
const activeStep = getActiveStep(eventTarget);
//set all steps before clicked (and clicked too) to active
setActiveStep(activeStep);
//open active panel
setActivePanel(activeStep);
});
//PREV/NEXT BTNS CLICK
DOMstrings.stepsForm.addEventListener('click', e => {
const eventTarget = e.target;
//check if we clicked on `PREV` or NEXT` buttons
if (!(eventTarget.classList.contains(`${DOMstrings.stepPrevBtnClass}`) || eventTarget.classList.contains(`${DOMstrings.stepNextBtnClass}`)))
{
return;
}
//find active panel
const activePanel = findParent(eventTarget, `${DOMstrings.stepFormPanelClass}`);
let activePanelNum = Array.from(DOMstrings.stepFormPanels).indexOf(activePanel);
//set active step and active panel onclick
if (eventTarget.classList.contains(`${DOMstrings.stepPrevBtnClass}`)) {
activePanelNum--;
} else {
activePanelNum++;
}
setActiveStep(activePanelNum);
setActivePanel(activePanelNum);
});
//SETTING PROPER FORM HEIGHT ONLOAD
window.addEventListener('load', setFormHeight, false);
//SETTING PROPER FORM HEIGHT ONRESIZE
window.addEventListener('resize', setFormHeight, false);
const setAnimationType=newType=>{DOMstrings.stepFormPanels.forEach(elem=>{elem.dataset.animation=newType;});};
const animationSelect=document.querySelector('.pick-animation__select');
animationSelect.addEventListener('change',()=>{
const newAnimationType=animationSelect.value;
setAnimationType(newAnimationType);
});
</script>
</body>
</html>