Drag-and-drop file view based on ampersand-view, and for use in ampersand-form-view.

Use with ampersand-form-view:

var FormView = require('ampersand-form-view');
var FileDropView = require('ampersand-file-drop-view');

new FormView({
	
	fields: function() {
		return [
			new FileDropView({
				holderClass: "file-drop-holder",
				name: "files",
				multiple: true,
				accept: "image/*,video/*",
				parent: this
			})
		];
	}
	
});

For a live demo, git clone this repo, run npm install to install the dependencies, and npm run demo to start a small local server that hosts the demo html page.

• name String. Required. Name to use. Used by ampersand-form-view
• label String. Label to use for the view. Can be falsy to hide label. Defaults to "Drag and drop a file".
• required Boolean. Whether or not this view needs to have files. Defaults to false
• value Array. If present, the starting value must be an array of File or Blob objects.
• multiple Boolean. Whether to allow one or multiple files. Defaults to false
• accept String/Array. Which mime types to allow. Comma separated if string. Defaults to "*/*"
• holderClass String. Class to use for the main container. Defaults to "file-holder".
• holderHoverClass String. Class to use for the main container when hovering with a selection over the main container. Defaults to "file-holder-hover".
• documentHoverClass String. Class to use for the main container when hovering with a selection over the document body element. Defaults to "document-hover".
• hasFilesClass String. Class to use for the field has files. Defaults to "has-files".
• itemViewOptions Object. Options object to pass to individual item views (see below)
• mainIndex String. Which property of the file to use to index. Indexing by a property such as name can prevent duplicates being added. See ampersand-collection for more information.

• displayPreview Boolean. Whether or not to display an image preview, if available. Defaults to false.
• fileSizeUnit String. Which file size unit to use. E.g.: "kb", "mb", "gb", etc. Defaults to "kb".

• setValue(files) files is an array of File or Blob objects.
  • sets the value of the view to files
• addFiles(files) files is an array of File or Blob objects.
  • appends the value of the view with files
• clear()
  • empties the view's value of all files
• reset()
  • sets the view's value to the value passed in through the view's constructor options

Run tests with npm test

• ampersand-view-conventions compliance
  • supports setting a value (an array of File or Blob-like objects) programatically, including as an initial value
• more reliable triggering of classes when hovering over the body or the file-holder element
• addition of hasFilesClass
• addition of addFiles method (previous handleFiles)

MIT