I am trying to implement a simple file drag and drop functionality in Angular js/MVC.
I created a directive for the drag and drop.
(function (angular, undefined) {
'use strict';
angular.module('fileupload', [])
.directive("myDirective", function ($parse) {
return {
restrict: 'A',
link: fileDropzoneLink
};
function fileDropzoneLink(scope, element, attrs) {
element.bind('dragover', processDragOverOrEnter);
element.bind('dragenter', processDragOverOrEnter);
element.bind('dragend', endDragOver);
element.bind('dragleave', endDragOver);
element.bind('drop', dropHandler);
var onImageDrop = $parse(attrs.onImageDrop);
//When a file is dropped
var loadFile = function (files) {
scope.uploadedFiles = files;
scope.$apply(onImageDrop(scope));
};
function dropHandler(angularEvent) {
var event = angularEvent.originalEvent || angularEvent;
var files = event.dataTransfer.files;
event.preventDefault();
loadFile(files)
}
function processDragOverOrEnter(angularEvent) {
var event = angularEvent.originalEvent || angularEvent;
if (event) {
event.preventDefault();
}
event.dataTransfer.effectAllowed = 'copy';
element.addClass('dragging');
return false;
}
function endDragOver() {
element.removeClass('dragging');
}
}
});
}(angular));This is the template
<div class="dropzone" data-my-Directive on-image-drop="$ctrl.fileDropped()">
Drag and drop pdf files here
</div>This is my component code
(function (angular, undefined) {
'use strict';
angular.module('test', [])
.component('contactUs', contactUs());
function contactUs() {
ContactUs.$inject = ['$scope', '$http'];
function ContactUs($scope, $http) {
var ctrl = this;
ctrl.files = [];
ctrl.services = {
$scope: $scope,
$http: $http,
};
}
//file dropped
ContactUs.prototype.fileDropped = function () {
var ctrl = this;
var files = ctrl.services.$scope.uploadedFiles;
angular.forEach(files, function (file, key) {
ctrl.files.push(file);
});
}
return {
controller: ContactUs,
templateUrl: 'partials/home/contactus/'
};
}
}(angular));Sometimes the drag and drop works absolutely fine without any issue. But some times I get the below issue and the drag and drop does not work and I get the black invalid cursor.
This issue is random and i do not see any errors in the console.
And I also tried other third party components like angular-file-upload https://github.com/nervgh/angular-file-upload and I am seeing the exact same issue with that component also.