code-boxx/0-JS-HTML-WIZARD.MD

## 0-JS-HTML-WIZARD.MD

      
    Raw
  

              0-JS-HTML-WIZARD.MD
            
          
    JAVASCRIPT HTML WIZARD FORM

https://code-boxx.com/simple-html-js-wizard-form/
LICENSE

Copyright by Code Boxx
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

  
## wizard.css
/* (A) ENTIRE PAGE */
* {
  font-family: Arial, Helvetica, sans-serif;
  box-sizing: border-box;
}

/* (B) WIZARD FORM */
#wiz {
  max-width: 600px;
  padding: 15px;
  border: 1px solid #eee;
  background: #f7f7f7;
}
#wiz .step { display: none; }
#wiz .now { display: block !important; }

/* (C) WIZARD FORM FIELDS */
#wiz label, #wiz input[type=text], #wiz input[type=email] {
  display: block;
  width: 100%;
}
#wiz label { margin: 10px 0; }
#wiz input[type=text], #wiz input[type=email] {
  border: 1px solid #f2f2f2;
  padding: 10px;
}
#wiz input[type=button], #wiz input[type=submit] {
  padding: 10px;
  margin-top: 20px;
  border: 0;
  color: #fff;
  background: #2d32d5;
  cursor: pointer;
}

## wizard.html
<!DOCTYPE html>
<html>
  <head>
    <title>JS Wizard Form Demo</title>
    <meta charset="utf-8">

    <!-- (A) LOAD CSS + JS -->
    <link rel="stylesheet" href="wizard.css">
    <script src="wizard.js"></script>
  </head>
  <body>
    <!-- (B) WIZARD FORM -->
    <div id="wiz">
      <form class="step">
        <h3>STEP 1 - CHOOSE A MEME ANIMAL</h1>
        <label>
          <input type="radio" name="meme" value="Doge" required> Doge
        </label>
        <label>
          <input type="radio" name="meme" value="Cate" required> Cate
        </label>
        <input type="submit" value="Next">
      </form>

      <form class="step">
        <h3>STEP 2 - YOUR NAME & EMAIL</h1>
        <label>Name</label>
        <input type="text" name="name" required>
        <label>Email</label>
        <input type="email" name="email" required>
        <input type="button" class="back" value="Back">
        <input type="submit" value="Go!">
      </form>
    </div>
  </body>
</html>

## wizard.js
function wiz () {
  // (A) FLAGS & PROPERITES
  let hSteps = document.querySelectorAll("#wiz form.step"), // wizard steps
      steps = hSteps.length - 1, // total number of steps
      now = 0; // current step

  // (B) LAST STEP / NEXT STEP / SUBMIT
  let proceed = next => {
    // (B1) UPDATE CURRENT STEP
    if (next) { now++; } else { now--; }

    // (B2) THIS IS THE LAST STEP
    // @TODO - COMPLETE THIS ON YOUR OWN!
    if (now>steps) {
      /* (B2-1) AJAX SUBMIT?
      let form = new FormData();
      for (let s of hSteps) {
        for (let [k,v] of new FormData(s)) { form.append(k,v); }
      }
      fetch("SERVER-SCRIPT", { method:"post", body:form })
      .then(res => res.text())
      .then(txt => alert(txt));
      */

      /* (B2-2) REDIRECT WITH URL SEARCH PARAMS?
      let params = new URLSearchParams();
      for (let s of hSteps) {
        for (let [k,v] of new FormData(s)) { params.append(k,v); }
      }
      location.href = "URL?" + params.toString();
      */
    }

    // (B3) SHOW LAST/NEXT STEP
    else { for (let i=0; i<=steps; i++) {
      if (i==now) { hSteps[i].classList.add("now"); }
      else { hSteps[i].classList.remove("now"); }
    }}

    // (B4) PREVENT DEFAULT HTML FORM SUBMIT
    return false;
  };

  // (C) AUTO ATTACH LAST STEP / NEXT STEP / SUBMIT
  for (let i=0; i<=steps; i++) {
    // (C1) LAST STEP - IF ANY
    let back = hSteps[i].querySelector(".back");
    if (back) { back.onclick = () => proceed(); }

    // (C2) NEXT STEP
    hSteps[i].onsubmit = () => proceed(true);
  }

  // (D) READY - SHOW FIRST STEP
  hSteps[0].classList.add("now");
}
window.addEventListener("DOMContentLoaded", wiz);
	/* (A) ENTIRE PAGE */
	* {
	font-family: Arial, Helvetica, sans-serif;
	box-sizing: border-box;
	}

	/* (B) WIZARD FORM */
	#wiz {
	max-width: 600px;
	padding: 15px;
	border: 1px solid #eee;
	background: #f7f7f7;
	}
	#wiz .step { display: none; }
	#wiz .now { display: block !important; }

	/* (C) WIZARD FORM FIELDS */
	#wiz label, #wiz input[type=text], #wiz input[type=email] {
	display: block;
	width: 100%;
	}
	#wiz label { margin: 10px 0; }
	#wiz input[type=text], #wiz input[type=email] {
	border: 1px solid #f2f2f2;
	padding: 10px;
	}
	#wiz input[type=button], #wiz input[type=submit] {
	padding: 10px;
	margin-top: 20px;
	border: 0;
	color: #fff;
	background: #2d32d5;
	cursor: pointer;
	}
	<!DOCTYPE html>
	<html>
	<head>
	<title>JS Wizard Form Demo</title>
	<meta charset="utf-8">

	<!-- (A) LOAD CSS + JS -->
	<link rel="stylesheet" href="wizard.css">
	<script src="wizard.js"></script>
	</head>
	<body>
	<!-- (B) WIZARD FORM -->
	<div id="wiz">
	<form class="step">
	<h3>STEP 1 - CHOOSE A MEME ANIMAL</h1>
	<label>
	<input type="radio" name="meme" value="Doge" required> Doge
	</label>
	<label>
	<input type="radio" name="meme" value="Cate" required> Cate
	</label>
	<input type="submit" value="Next">
	</form>

	<form class="step">
	<h3>STEP 2 - YOUR NAME & EMAIL</h1>
	<label>Name</label>
	<input type="text" name="name" required>
	<label>Email</label>
	<input type="email" name="email" required>
	<input type="button" class="back" value="Back">
	<input type="submit" value="Go!">
	</form>
	</div>
	</body>
	</html>
	function wiz () {
	// (A) FLAGS & PROPERITES
	let hSteps = document.querySelectorAll("#wiz form.step"), // wizard steps
	steps = hSteps.length - 1, // total number of steps
	now = 0; // current step

	// (B) LAST STEP / NEXT STEP / SUBMIT
	let proceed = next => {
	// (B1) UPDATE CURRENT STEP
	if (next) { now++; } else { now--; }

	// (B2) THIS IS THE LAST STEP
	// @TODO - COMPLETE THIS ON YOUR OWN!
	if (now>steps) {
	/* (B2-1) AJAX SUBMIT?
	let form = new FormData();
	for (let s of hSteps) {
	for (let [k,v] of new FormData(s)) { form.append(k,v); }
	}
	fetch("SERVER-SCRIPT", { method:"post", body:form })
	.then(res => res.text())
	.then(txt => alert(txt));
	*/

	/* (B2-2) REDIRECT WITH URL SEARCH PARAMS?
	let params = new URLSearchParams();
	for (let s of hSteps) {
	for (let [k,v] of new FormData(s)) { params.append(k,v); }
	}
	location.href = "URL?" + params.toString();
	*/
	}

	// (B3) SHOW LAST/NEXT STEP
	else { for (let i=0; i<=steps; i++) {
	if (i==now) { hSteps[i].classList.add("now"); }
	else { hSteps[i].classList.remove("now"); }
	}}

	// (B4) PREVENT DEFAULT HTML FORM SUBMIT
	return false;
	};

	// (C) AUTO ATTACH LAST STEP / NEXT STEP / SUBMIT
	for (let i=0; i<=steps; i++) {
	// (C1) LAST STEP - IF ANY
	let back = hSteps[i].querySelector(".back");
	if (back) { back.onclick = () => proceed(); }

	// (C2) NEXT STEP
	hSteps[i].onsubmit = () => proceed(true);
	}

	// (D) READY - SHOW FIRST STEP
	hSteps[0].classList.add("now");
	}
	window.addEventListener("DOMContentLoaded", wiz);