html5 & upload files

https://www.sitepoint.com/html5-ajax-file-upload/

https://www.webcodegeeks.com/html5/html5-file-upload-example


<input type="file" id="fileinput" />

document.getElementById('fileinput').addEventListener('change', function(){
var file = this.files[0];
// This code is only for demo ...
console.log("name : " + file.name);
console.log("size : " + file.size);
console.log("type : " + file.type);
console.log("date : " + file.lastModified);
}, false);

multi files

<input type="file" id="fileinput" multiple="multiple" />
document.getElementById('fileinput').addEventListener('change', function(){
for(var i = 0; i<this.files.length; i++){
var file = this.files[i];
// This code is only for demo ...
console.group("File "+i);
console.log("name : " + file.name);
console.log("size : " + file.size);
console.log("type : " + file.type);
console.log("date : " + file.lastModified);
console.groupEnd();
}
}, false);

image


<input type="file" id="fileinput" multiple="multiple" accept="image/*" /> // Previewing Files <!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Preview images</title>
<style>
#gallery .thumbnail{
width:150px;
height: 150px;
float:left;
margin:2px;
}
#gallery .thumbnail img{
width:150px;
height: 150px;
} </style>
</head>
<body>
<h2>Upload images ...</h2> <input type="file" id="fileinput" multiple="multiple" accept="image/*" /> <div id="gallery"></div>
<script src="gallery.js"></script>
</body>
</html>

var uploadfiles = document.querySelector('#fileinput');
uploadfiles.addEventListener('change', function () {
var files = this.files;
for(var i=0; i<files.length; i++){
previewImage(this.files[i]);
} }, false); function previewImage(file) {
var galleryId = "gallery"; var gallery = document.getElementById(galleryId);
var imageType = /image.*/; if (!file.type.match(imageType)) {
throw "File Type must be an image";
} var thumb = document.createElement("div");
thumb.classList.add('thumbnail'); // Add the class thumbnail to the created div var img = document.createElement("img");
img.file = file;
thumb.appendChild(img);
gallery.appendChild(thumb); // Using FileReader to display the image content
var reader = new FileReader();
reader.onload = (function(aImg) { return function(e) { aImg.src = e.target.result; }; })(img);
reader.readAsDataURL(file);
}

function uploadFile(file){
var url = 'server/index.php';
var xhr = new XMLHttpRequest();
var fd = new FormData();
xhr.open("POST", url, true);
xhr.onreadystatechange = function() {
if (xhr.readyState == 4 && xhr.status == 200) {
// Every thing ok, file uploaded
console.log(xhr.responseText); // handle response.
}
};
fd.append("upload_file", file);
xhr.send(fd);
} var uploadfiles = document.querySelector('#uploadfiles');
uploadfiles.addEventListener('change', function () {
var files = this.files;
for(var i=0; i<files.length; i++){
uploadFile(this.files[i]); // call the function to upload the file
}
}, false);


FileAPI

https://w3c.github.io/FileAPI/

https://developer.mozilla.org/en-US/docs/Web/API/File






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