Uploading a file with drag-and-drop
In supported browsers, a file can also be dragged-and-dropped for uploading with fileUpload, and the component itself will be the drop zone.
How to do it...
The dragDropSupport attribute defines whether or not to enable drag-and-drop from the filesystem. By default, the value of this attribute is true. In order to provide drag-and-drop support, the fileUpload component should be in advanced mode, which is the default mode. The definition of the fileUpload component for uploading files with drag-and-drop would be as follows:
<p:fileUpload id="upload" value="#{fileController.file}"
dragDropSupport="true"
update="growl"
fileUploadListener="#{fileController.handleFileUpload}" />How it works...
The fileUploadListener attribute defines the method that will be invoked when a file is uploaded.
There's more...
For applying features like restricting file upload type, limiting maximum size limit, and so on please refer to the Basic, automatic, and multiple...
