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+<!DOCTYPE html>
+<html lang="en">
+<head>
+ <meta charset="utf-8">
+ <meta http-equiv="x-ua-compatible" content="ie=edge">
+ <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+ <title>Cropper.js</title>
+ <link rel="stylesheet" href="../dist/cropper.css">
+ <style>
+ .container {
+ max-width: 640px;
+ margin: 20px auto;
+ }
+
+ img {
+ max-width: 100%;
+ }
+
+ .cropper-view-box,
+ .cropper-face {
+ border-radius: 50%;
+ }
+ </style>
+</head>
+<body>
+
+ <div class="container">
+ <h1>Crop a round image</h1>
+ <h3>Image</h3>
+ <div>
+ <img id="image" src="../docs/images/picture.jpg" alt="Picture">
+ </div>
+ <h3>Result</h3>
+ <p>
+ <button type="button" id="button">Crop</button>
+ </p>
+ <div id="result"></div>
+ </div>
+
+ <script src="../dist/cropper.js"></script>
+ <script>
+ (function () {
+
+ function getRoundedCanvas(sourceCanvas) {
+ var canvas = document.createElement('canvas');
+ var context = canvas.getContext('2d');
+ var width = sourceCanvas.width;
+ var height = sourceCanvas.height;
+
+ canvas.width = width;
+ canvas.height = height;
+
+ context.imageSmoothingEnabled = true;
+ context.drawImage(sourceCanvas, 0, 0, width, height);
+ context.globalCompositeOperation = 'destination-in';
+ context.beginPath();
+ context.arc(width / 2, height / 2, Math.min(width, height) / 2, 0, 2 * Math.PI, true);
+ context.fill();
+
+ return canvas;
+ }
+
+ window.addEventListener('DOMContentLoaded', function () {
+ var image = document.getElementById('image');
+ var button = document.getElementById('button');
+ var result = document.getElementById('result');
+ var croppable = false;
+ var cropper = new Cropper(image, {
+ aspectRatio: 1,
+ viewMode: 1,
+ ready: function () {
+ croppable = true;
+ }
+ });
+
+ button.onclick = function () {
+ var croppedCanvas;
+ var roundedCanvas;
+ var roundedImage;
+
+ if (!croppable) {
+ return;
+ }
+
+ // Crop
+ croppedCanvas = cropper.getCroppedCanvas();
+
+ // Round
+ roundedCanvas = getRoundedCanvas(croppedCanvas);
+
+ // Show
+ roundedImage = document.createElement('img');
+ roundedImage.src = roundedCanvas.toDataURL()
+ result.innerHTML = '';
+ result.appendChild(roundedImage);
+ };
+
+ });
+
+ })();
+ </script>
+</body>
+</html>