Есть скрипт написанный на JS, но необходимо его перевести в jQuery, как лучше это сделать? Может есть какой-то сервис?
вот сам скрипт, небольшой
// Once files have been selected
document.querySelector('form input[type=file]').addEventListener('change', function(event){
// Read files
var files = event.target.files;
// Iterate through files
for (var i = 0; i < files.length; i++) {
// Ensure it's an image
if (files[i].type.match(/image.*/)) {
// Load image
var reader = new FileReader();
reader.onload = function (readerEvent) {
var image = new Image();
image.onload = function (imageEvent) {
// Add elemnt to page
var imageElement = document.createElement('li');
imageElement.classList.add('uploading');
imageElement.innerHTML = '<span class="progress"><span></span></span>';
var progressElement = imageElement.querySelector('span.progress span');
progressElement.style.width = 0;
document.querySelector('form div.photos').appendChild(imageElement);
// Resize image
var canvas = document.createElement('canvas'),
max_size = 1200,
width = image.width,
height = image.height;
if (width > height) {
if (width > max_size) {
height *= max_size / width;
width = max_size;
}
} else {
if (height > max_size) {
width *= max_size / height;
height = max_size;
}
}
canvas.width = width;
canvas.height = height;
canvas.getContext('2d').drawImage(image, 0, 0, width, height);
// Upload image
var xhr = new XMLHttpRequest();
if (xhr.upload) {
// Update progress
xhr.upload.addEventListener('progress', function(event) {
var percent = parseInt(event.loaded / event.total * 100);
progressElement.style.width = percent+'%';
}, false);
// File uploaded / failed
xhr.onreadystatechange = function(event) {
if (xhr.readyState == 4) {
if (xhr.status == 200) {
imageElement.classList.remove('uploading');
imageElement.classList.add('uploaded');
//imageElement.style.backgroundImage = 'url('+xhr.responseText+')'; //original
imageElement.innerHTML = xhr.responseText
console.log('Image uploaded: '+xhr.responseText);
} else {
imageElement.parentNode.removeChild(imageElement);
}
}
}
// Start upload
xhr.open('post', 'process.php', true);
xhr.send(canvas.toDataURL('image/jpeg'));
}
}
image.src = readerEvent.target.result;
}
reader.readAsDataURL(files[i]);
}
}
// Clear files
event.target.value = '';
});
