Unexpected error occurred while updating required files
— when enabled (by default) lets user upload the same file twice in a row but has a slight chance to break your old code. It is now possible to pass an arbitrary object of values to . Revised and extended documentation, dedicated website, fully documented code, complete test suite and validation across all possible browsers.
Added and verified support for Internet Explorer 10 with its incomplete File API. New features like data reading and you have a large text area where a user can input text manually but also drop a file to be sent to the server via AJAX.
Also note that defined properties that are property (object with keys = event names and values = arrays of functions).
Before calling handlers of obj looks if global configuration has a preview handler specified — if it does then calls that handler and if it returns non-) but is mainly used to handle all drag & drop operations in a cross-browser way. Main File Drop class extends it and listens for produced drop events. If such element doesn’t exist an exception is thrown when trying to create the class.
Plus you can pass any data to that function as its parameters.
For the practical server-side example see included
See extensive comments in the sources for more details and examples. New File Drop provides special File List object instead of arrays that were used when passing dropped files to event listeners.
There’s no way to make sure it was populated or retrieve any info about the file — this can only be done by the server which may return something useful in response.
It requires HTML5 File API support and won’t work on fallback W3C has a working draft on File System API that introduces lots of interesting features allowing us to read and write files and directories (currently supported only in Chrome 21 ).
File Drop lets you use its File List and File methods to list folders, upload files, read file data (full or partial) and so on. Note that j Query will prepend its own event object in front of File Drop’s normal event arguments since they’re triggered as regular events of a DOM node.
This way you don’t need to create a hidden file input that, when clicked, will allow the user to select files to upload.
The server can respond with some modified version of the original file that you will use to populate the area.