dropping files from Explorer onto a CHROME HANDLE

[xiaoyao]

https://blog.51cto.com/ITEvan/6459885

var dropHandler = function(e) {
e.preventDefault();  // Get the file list
var fileList = e.dataTransfer.files;
// Detects whether a file is dragged to the page
if (fileList.length == 0) {
return;
}
// Check whether the file is a picture
if (fileList[0].type.indexOf("image") === -1) {
return;
}
// Instantiate the file reader object
var reader = new FileReader();
var img = document.createElement("img");
reader.onload = function(e) {
img.src = this.result;
oDragWrap.appendChild(img);
};
reader.readAsDataURL(fileList[0]);
};